52nd week of 2021 patent applcation highlights part 35 |
Patent application number | Title | Published |
20210404270 | HIGH-INTENSITY ACOUSTIC TREATMENT OF COLLOIDAL MINERAL SUSPENSIONS FOR WELLBORE OPERATIONS - Described herein are methods of enhancing the rheological properties of a colloidal mineral suspension in a liquid with high-intensity acoustical energy. In some examples, the colloidal mineral suspension may be dehydrated after treatment with high-intensity acoustical energy. | 2021-12-30 |
20210404271 | TREATMENT OF OIL-BASED MUD FOR DETERMINING OIL-WATER RATIO - Apparatuses and methods measure a specified volume of a drilling fluid for a test sample. An electrical parameter of the test sample is measured; and a chemical formulated to effect a change in the electrical parameter of the test sample is added in known increments. After each incremental addition of the chemical, the electrical parameter of the test sample is measured to determine if the electrical parameter measurement is at a stable value. When the electrical parameter measurement is at a stable value, the electrical parameter is correlated with an amount of water in the drilling fluid. | 2021-12-30 |
20210404272 | DOWNHOLE CUTTINGS COLLECTOR - A system includes a flow line connected to a fluid and a suction line in fluid communication with the flow line, wherein the fluid is to carry cuttings from a borehole. The system also includes a flow line pump to move fluid via the suction line onto a surface of a cuttings separation conveyor, wherein the surface of the cuttings separation conveyor comprises a separation screen. The system also includes a cuttings container positioned to collect a portion of the cuttings from the separation conveyor | 2021-12-30 |
20210404273 | Open Channel Flow From Multiple Pressure Sensors - A fluid flow system may comprise an input line connected to a drilling system, one or more fluid flow lines connected to the input line, and an output line connected to the one or more fluid flow lines. The system may further include one or more valves disposed in each of the one or more fluid flow lines and one or more pressure sensors disposed in each of the one or more fluid flow lines. A method for controlling a fluid flow system may comprise moving a drilling fluid from a borehole into an input line of the fluid flow system, directing the drilling fluid through the input line into a fluid flow line, measuring a first pressure at a first pressure sensor in the fluid flow line, and measuring a second pressure at a second pressure sensor in the fluid flow line. | 2021-12-30 |
20210404274 | SYSTEMS AND METHODS FOR DETECTING KICK AND WELL FLOW - Systems and methods for detecting a gas kick within a wellbore are provided. The system includes a rotatable tool including one or more acceleration sensors and/or oscillators. The method includes rotating the rotatable tool in contact with fluid inside the wellbore and detecting changes in rotational velocity of the rotatable tool to detect the gas kick. In other aspects, the method includes detecting a change in density of the fluid within the wellbore by at least one or more pressure waves to determine the gas kick within the wellbore. | 2021-12-30 |
20210404275 | HYDRAULIC RETRIEVING TOOL WITH DRIFTING CAPABILITIES - Methods and apparatus for installing a deflector in a primary wellbore and confirming lateral wellbore access. The hydraulic retrieving tool is coupled to the interior of the deflector and introduced into the primary wellbore. The hydraulic retrieving tool comprises a bullnose, a plurality of retractable deflective pads, and a retractable dog. The deflector comprises a deflection surface. The hydraulic retrieving tool is decoupled from the interior of the deflector at a depth in the primary wellbore by retracting the dog and the plurality of deflective pads. The hydraulic retrieving tool is removed from the interior of the deflector. The dog and the plurality of deflective pads on the hydraulic retrieving tool are expanded when the hydraulic retrieving tool is removed from the interior of the deflector. The hydraulic retrieving tool drifts at least a portion of the deflection surface to determine if there is lateral wellbore access. | 2021-12-30 |
20210404276 | MULTI-TOOTH JAW, TORQUE STOPPER DEVICE AND REPAIR KIT THEREOF FOR PREVENTING ROTATION OF DOWNHOLE TOOLS SUSPENDED IN WELLBORE CASING - A multi-tooth jaw for a torque stopper device prevents rotation of downhole tools suspended in a wellbore casing. The jaw includes a base for positioning adjacent an outside wall of the torque stopper and a hinge connection allowing the jaw to pivot around an axis of rotation running lengthwise through the base. The jaw further includes a plurality of radial tips, i.e., teeth, each a different distance from the axis of rotation. When viewed from a side with the axis of rotation being a point around which the jaw pivots, the tips are in ascending order of distance with a first, leading tip having a shortest distance from the axis of rotation as the jaw pivots from a stowed to a deployed position. A torque stopper device with the multi-tooth jaw supports a range of casing internal diameters. A repair kit allows swapping a one-tooth jaw with the multi-tooth jaw. | 2021-12-30 |
20210404277 | Downhole Tool - A method and apparatus for a downhole tool including a slip assembly having a plurality of slips configured to engage a downhole surface. The slip assembly includes a plurality of slip segments. Each slip segment includes a slip body, a plurality of profile elements coupled to the slip body, and a first coating disposed on the plurality of profile elements, wherein the first coating is formed from a plasma electrolytic oxidation treatment. The first coating and the plurality of profile elements form a plurality of gripping elements configured to grip the downhole surface. | 2021-12-30 |
20210404278 | IMPACT-TRIGGERED FLOATATION TOOL - Disclosed is an apparatus and system, and a method of using the same, comprising An apparatus comprising: a first outer pipe; a central housing attached to the first outer pipe, an annular piston that can impact a brittle barrier, the annular piston comprising an impact surface; a brittle barrier, wherein the brittle barrier is separated from the impact surface by a distance, and wherein the brittle barrier comprises a set of materials; and a second outer pipe attached to the central housing, wherein the central housing is positioned between the first outer pipe and the second outer pipe; wherein the brittle barrier is positioned within one or more of the central housing and the second outer pipe; wherein the annular piston is attached to one or more of the first outer pipe and the central housing via a releasable fastener. | 2021-12-30 |
20210404279 | GUIDED WASH PIPE MILLING - Methods and apparatus for milling a window for a lateral wellbore in a casing string. An example method introduces a milling assembly into a primary wellbore, the milling assembly comprising: a whipstock, a guide bar coupled to the whipstock, and a wash pipe coupled to the guide bar. The method further includes running the milling assembly to a depth at which it is adjacent to the window in the casing string; securing the whipstock in the casing string; decoupling the wash pipe from the guide bar; guiding the wash pipe to mill the guide bar without milling the whipstock; and milling the window in the casing string with the wash pipe. | 2021-12-30 |
20210404280 | LASER CUTTING TOOL - An example laser tool is configured to operate within a casing or liner in wellbore of a hydrocarbon-bearing rock formation. The tool is configured to cut sections into the casing or liner material. The cut sections may break off or may be broken off using a breaking tool. The sections may be cut in a region of the casing or liner that includes a kick-off point for sidetracking operations. | 2021-12-30 |
20210404281 | SYSTEM FOR UNSTICKING PIPES OF A DRILL STRING OF A DRILLING APPARATUS - An unstuck system of stuck drill pipes of a drill string of a drilling apparatus adapted to drilled wells to extract fluids or mud includes a torsion coupling system adapted to disconnect an upper portion from a bottom portion including the stuck drill pipes of the drill string and to transfer a rotation to the unstuck system. The unstuck system includes at least an axial forced vibration generator including at least one axially movable element adapted to generate at least a vibration which is propagated to pipes of a portion free from being stuck, where the induced vibrations fall within a band of induced frequencies near or corresponding to a resonance frequency of the portion free from being stuck. | 2021-12-30 |
20210404282 | LEAD IMPRESSION TOOL - A lead impression system having a downhole tool and a lead impression assembly assembled radially around the downhole tool is landed on a previously installed host casing hanger or a casing hanger being installed in the current/same trip to obtain a lead impression from the bore of the wellhead housing and indicate where the host casing hanger is located axially within the wellhead housing with respect to a feature on the bore of the wellhead housing from which the lead impression is obtained. Lead impression modules in the assembly have a lead pad that protrudes radially outward through a window on an outer sleeve according to a pressure differential between an internal and an external pressure of the lead impression assembly. The lead pad retracts to its pre-set position when the pressure differential exceeds a preset burst pressure. | 2021-12-30 |
20210404283 | Downhole Fishing Tool - An oil or gas well fishing tool is provided. The downhole fishing tool has a receptacle that is open at one end. The tool also has deployment tool engaging means, located on the opposite end of the receptacle to the one end. The tool further has a layer of an alloy provided on the interior surface of the receptacle. The alloy is a eutectic alloy and/or a bismuth alloy. The tool further comprises heating means to heat the alloy so that it melts and can flow over any object received within the receptacle. | 2021-12-30 |
20210404284 | WELLBORE ISOLATION DEVICE - A wellbore isolation assembly has an outer housing having an inner bore having a treatment port formed therein, and a floating inner mandrel disposed within the inner bore. The floating inner mandrel can have an inner bore formed therethrough with a fluid port formed therein. One or more fluid chambers, disposed in an annulus formed between the outer housing and the floating inner mandrel, having a working fluid operably disposed therein and one or more inflatable elements operable to receive the working fluid therein. A plunger disposed in the annulus and coupled with the floating inner mandrel and operable to urge the working fluid from the one or more fluid chambers to the one or more inflatable elements. The floating inner mandrel operable to transition between a first position and a second position and the treatment port and the fluid port substantially aligned in the second position. | 2021-12-30 |
20210404285 | DOWNHOLE TOOL WITH A RETAINED OBJECT - A method and apparatus for a downhole tool including a retained object. The downhole tool includes a longitudinal axis, a cone including a seat having an opening, and a shoe member. The downhole tool further includes a slip assembly disposed between the cone and the shoe member. The downhole tool further includes a mandrel disposed in the opening of the seat. The downhole tool further includes an attachment member attaching the mandrel to the shoe member, wherein the attachment member is eccentric to the longitudinal axis. The downhole tool further includes a setting sleeve abutting the cone. The downhole tool further includes the object, wherein the object configured to engage with the seat, and wherein the object is disposed between the mandrel and the setting sleeve. | 2021-12-30 |
20210404286 | PLUG PISTON BARRIER - A plug assembly for use in oil and gas wells includes a sleeve having a debris barrier. The plug assembly may have a top sub, a bottom sub, and a middle sub arranged between the top sub and the bottom sub. The middle sub has an interior bore, a valve and a fluid flow channel such that the valve, when opened, allows fluid to flow from an interior bore of the middle sub into the fluid flow channel. The sleeve having the debris barrier is disposed on the middle sub. Fluid flowing in the fluid flow channel moves the sleeve, which moves the debris barrier so that the debris barrier is withdrawn from the fluid flow path through the interior bores of the top sub and the middle sub. | 2021-12-30 |
20210404287 | DEGRADABLE ALIPHATIC POLYESTER FLUID - Viscous degradable fluids for use in fluid loss control, diversion, gravel packing, fracturing, and acidizing operations, method of preparing the viscous degradable fluids, and methods of using the viscous degradable fluids in subterranean operations are disclosed. At least one aliphatic polyester is dissolved in a solvent comprising triacetin to form a viscous degradable fluid. The viscous degradable fluid can be injected directly into a subterranean formation or mixed with other fluids and/or additives before being injected into the subterranean formation, where it can temporarily block or restrict flow through openings in the formation. | 2021-12-30 |
20210404288 | METHOD FOR THE PRESERVATION OF IN-SITU SOLUBLE SALT CEMENTS THAT ALLOWS THEIR QUANTIFICATION WITHIN SUBTERRANEAN ROCKS - A method of coring to preserve subterranean soluble salt cements gives careful consideration to the selection and use of drilling fluids, specific logging of the zone of interest, displacing the near wellbore with an agent that when cured has either bound all subterranean water or cemented up all the available pore space, coring of the target formation zone containing the cured agent and retrieval of pressurized core material that allows CT scanning. | 2021-12-30 |
20210404289 | Packaging Of A Diode And Sidac Into An Actuator Or Motor For Downhole Usage - An actuation module may comprise a housing, a solenoid operated valve solenoid operated valve disposed in the housing, a diode disposed in the housing, a silicon bilateral voltage triggered switch thyristor disposed in the housing and electrically connected to the solenoid operated valve, and an output connected to the solenoid operated valve. A method may comprise connecting an actuation module to a production tubing valve, connecting the actuation module to a valve control system, connecting an information handling system to the valve control system, controlling the actuation module with the valve control system, and activating the production tubing valve with the actuation module. | 2021-12-30 |
20210404290 | MULTIPLE PORT OPENING METHOD WITH SINGLE PRESSURE ACTIVATION - A flow control apparatus with a guide housing having one or ports, a breakable bond, and a platform with an upper surface having one or more pistons. The platform and guide housing have a first bonded configuration where the pistons are received in the ports, a breaking configuration, an opening configuration where the platform is movable away from the guide housing, and a misaligned configuration where the platform is displaced with respect to the guide housing. The guide housing has a guide bore and the platform has a guide projection extending into the guide bore. The guide bore has a groove and the guide projection has an extension extending in the groove for transitioning between configurations. | 2021-12-30 |
20210404291 | PUMP DOWN INTERVENTION TOOL AND ASSEMBLY - A pump down intervention tool may be pumped downhole through a work string after an installation of the work string. The pump down intervention tool may include a downhole tool that includes but is not limited to an agitator tool, including but not limited to a fluidic pulsation device, or a check valve. The pump down intervention tool may be pumped downhole in the work string, for example but not limited to in a coiled tubing or jointed pipes. The pump down intervention tool may be landed at a desired location along a length of the work string. The pump down intervention tool can allow for the addition of a downhole tool after the work string's initial deployment, providing a desired functionality downhole at time after the initial deployment of the work string downhole. | 2021-12-30 |
20210404292 | APPARATUS, METHOD AND SOFTWARE PRODUCT FOR DRILLING SEQUENCE PLANNING - An apparatus and method for planning a drilling sequence. The solution relates also to a rock drilling rig and to a computer program product. The apparatus searches several possible drilling scenarios for drilling a given drilling pattern. Different actions required by the scenarios have given costs and the executed algorithm calculates total costs of found scenarios. Scenarios with the lowest costs are selected. | 2021-12-30 |
20210404293 | Virtual Brake System - A brake system for maintaining an angular position of a spindle assembly. A pump-powered motor drives rotation of a spindle on the machine. When no rotation is desired, the spindle will slow, then stop at a desired angular orientation. A rotational sensor will determine the clock position, and a controller compares that to a desired angular orientation. If an error tolerance is exceeded, the motor will rotate the spindle back to the desired orientation. | 2021-12-30 |
20210404294 | SELF-DEFLECTING MULTILATERAL JUNCTION - Provided is a self-deflecting multilateral junction, a method, and a well system. The self-deflecting multilateral junction, in one aspect, includes a deflection device having an uphole end and a downhole end, the deflection device including a main tubular, a first flow path off the main tubular and operable to couple to a wellbore, a second flow path off the main tubular and operable to couple to a lateral wellbore, the second flow path having a lateral seal bore, and a deflecting ramp. The self-deflecting multilateral junction, according to this aspect, further includes a lateral stinger positioned within the main tubular and releasably coupled to the deflection device, the lateral stinger including a nose end configured to extend into the second flow path, a valve member, and a lateral seal for engaging the lateral seal bore. | 2021-12-30 |
20210404295 | AN EXPLOITING METHOD AND DEVICE OF MARINE FACIES NATURAL GAS HYDRATE - An exploiting method and device of marine facies natural gas hydrate. The exploiting method comprises the following steps: (1) after the construction of a vertical well, a fixed pipe is constructed, the exploiting well is set in the center of the fixed pipe, and the mixture is filled between the inner wall of the fixed pipe and the outer wall of the exploiting well; (2) the self-excited oscillating jet nozzle enters the exploiting well along the vertical well to the designated position through an orifice on the exploiting well and sprays the mixture, so that the mixture is broken evenly to form artificial fractures; (3) under the corresponding temperature, the hydrate decomposes to produce gas by depressurized exploiting; (4) the gas-liquid mixture exploited by the exploiting well is separated into liquid and gas in the gas-liquid separation device to collect liquid and gas. | 2021-12-30 |
20210404296 | IN-SITU HYDRAULIC JET EXPLOITING DEVICE AND METHOD OF LOW-PERMEABILITY NATURAL GAS HYDRATE RESERVOIR - An in-situ hydraulic jet exploiting device and method of a low-permeability natural gas hydrate reservoir. The device includes a high-pressure reaction kettle configured for formation, fracturing and exploiting of a hydrate, a stable-pressure gas supply module configured to adjust and control a gas flow rate, a constant-speed constant-pressure liquid supply module configured to control a liquid flow rate or keep liquid injection pressure constant, a thermostatic water bath configured to provide a constant-temperature environment for a device system, a back-pressure module configured to automatically control an exploiting rate or exploiting pressure, an in-situ hydraulic jet permeability enhancement module, a data collection and processing module configured to collect and process basic system parameters, and a pipeline connecting various components. | 2021-12-30 |
20210404297 | GRAVEL PACK ASSEMBLIES AND METHODS TO BYPASS A FLUID RESTRICTOR DURING GRAVEL PACKING OPERATIONS - The disclosed embodiments include gravel pack assemblies, method to bypass a fluid restrictor during gravel packing operations, and methods to control fluid flow during and after gravel packing operations. In one embodiment, a gravel pack assembly including a flow restrictor that is coupled to a downhole string that is deployed in a borehole is disclosed. The flow restrictor forms a first fluid passageway from the borehole to an internal cavity of the string. The gravel pack assembly includes a fluid bypass portion having a first chamber, a sealing member inserted into the first chamber; and an actuation assembly operable to actuate the sealing member. The fluid bypass portion forms a second fluid passageway from the borehole to the internal cavity of the downhole string prior to actuation of the actuation assembly. After actuation of the actuation assembly, fluid flow through the second fluid passageway is restricted by the sealing member. | 2021-12-30 |
20210404298 | EXPANDABLE LINER HANGER WITH POST-SETTING FLUID FLOW PATH - A wellbore completion system includes an expandable liner hanger with a post-setting fluid flow path. The system includes an expandable liner hanger that can be expanded by a running tool prior to a completion operation in a wellbore. The system also includes a circulating sleeve that can be manipulated by the running tool. The circulating sleeve can provide a return path for fluid internal to the expandable liner hanger for the completion operation that is performed subsequent to releasing the running tool from the expandable liner hanger. | 2021-12-30 |
20210404299 | Microencapsulated Acid with Perforation Strategies to Improve the Delivery and Treatment of Formations in Hydraulic Fracturing Applications - Acid plays an important role in the hydraulic fracturing process, such as removing damage from the cement and formation which can result from perforating operations, thus providing a better path for the fracturing operations that follow. The disclosure relates generally to microencapsulated acid or acid precursor for targeted delivery and dosing of acid at the site of perforation in hydraulic fracturing applications, device and method of use the same. The targeted delivery and dosing of acid at the site of perforation provides the benefit of, including but not limited to, eliminating over acidizing (limiting near wellbore formation damage) and optimizing the removal of perforation residue and formation materials for lowering break-down pressure. | 2021-12-30 |
20210404300 | Flow Control Shuttle - A flow control shuttle to provide the ability to block flow in either direction initially, while allowing a high-pressure differential capacity in one direction and does not produce free floating pieces of the plug in the flow stream after actuation. The mechanism is actuated by a pressure differential opposite the high-pressure direction, in which the actuation pressure can be set independently of the pressure rating of the high-pressure direction. Upon actuation the flow path opens allowing flow in either direction by moving a shuttle plug from a sealed to an unsealed configuration. The direction of high pressure and actuation pressure can be chosen by direction of installation on based what is required for the application. This mechanism can be incorporated into an existing tool or a new tool design, or can be provided as a standalone tool. | 2021-12-30 |
20210404301 | System for Remote Measurement of Ground Water Contamination Levels - The present disclosure provides a system and related methods for adapting groundwater monitoring wells and providing specially adapted aerial drones, with the adapted drones interacting with the modified monitoring wells to allow remote and even automated collection of ground water samples and/or data. The drones can be adapted either by provision of a contamination sensor or by carrying a payload of sample storage containers, and the monitoring wells can be configured to detect the approach of a drone and open automatically, or to have an injection point or even a matching sensor. | 2021-12-30 |
20210404302 | WELLBORE GAS LIFT OPTIMIZATION - A system and method for controlling a gas supply to provide gas lift for a production wellbore makes use of Bayesian optimization. A computing device controls a gas supply to inject gas into one or more wellbores. The computing device receives reservoir data associated with a subterranean reservoir to be penetrated by the wellbores and can simulate production using the reservoir data and using a physics-based or machine learning or hybrid physics-based machine learning model for the subterranean reservoir. The production simulation can provide production data. A Bayesian optimization of an objective function of the production data subject to any gas injection constraints can be performed to produce gas lift parameters. The gas lift parameters can be applied to the gas supply to control the injection of gas into the wellbore or wellbores. | 2021-12-30 |
20210404303 | METHOD AND SYSTEM FOR METERING PROPPANT - A method and system for metering proppant discharged from a storage container is disclosed. In certain embodiments, a method may comprise loading a known amount of a first proppant type into a storage container, detecting proppant at or adjacent to a discharge outlet of the storage container via one or more sensors coupled to the storage container, operating a metering device at a predetermined speed, wherein the metering device may be coupled to the discharge outlet of the storage container, and wherein the metering device may comprise one or more pockets for receiving the first proppant type. In certain embodiments, the method may further comprise dispensing a known amount of the first proppant type from the storage container via the metering device, wherein an encoder coupled to the metering device may emit pulses during the dispensing. In certain embodiments, the method may further comprise determining an amount of the first proppant type dispensed by at least one pocket of the one or more pockets of the metering device based at least in part on the pulses and determining a relationship between the known amount of the first proppant type dispensed by each pocket and a speed of the metering device. | 2021-12-30 |
20210404304 | LOCATING SELF-SETTING DISSOLVABLE PLUGS - A magnetic system for determining a position of an untethered dissolvable frac package for use in a hydraulic fracturing or stimulation operation. The system includes an array of magnets operable to produce a magnetic field that is operably associated with a position downhole along the string. A setting tool of the dissolvable frac package is configured to sense the magnetic fields and deploy a dissolvable frac plug at a predetermined position along the wellbore string. | 2021-12-30 |
20210404305 | ACID FRACTURING WITH DISSOLVABLE PLUGS - Acid stimulation operations in a wellbore may be conducted using frac plugs constructed of a hydrolytically degradable polymer. The frac plugs may be constructed of an aliphatic polyester such as PGA and may be readily pumped into position in the wellbore due in part to their relatively low density. Once perforations have been created in the wellbore and a first frac plug is set in place, an acid solution may be pumped at a high-pressure acid against the frac plug and into the geologic formation. A second and/or any number of subsequent frac plugs may be pumped behind the acid, e.g., in brine solution, to be used in subsequent acid stimulation operations. After completing acid stimulation operations, the frac plugs may degrade in the wellbore to permit production within two weeks. | 2021-12-30 |
20210404306 | OPTIMIZING PROPPANT PLACEMENT FOR FRACTURING OPERATIONS - System and methods of optimizing proppant placement for stimulation treatments are provided. Properties of a reservoir formation and a treatment fluid to be injected into the formation are determined for a multistage stimulation treatment to be performed along a wellbore drilled within the formation. A proppant transport model uses the properties to determine a proppant profile for a fractured area of the formation for each treatment stage along the wellbore. A proppant pack conductivity for each stage is determined based on a proppant conductivity model and the proppant profile for that stage. A rate of hydrocarbon production expected from the wellbore is estimated based on a well production model and the proppant pack conductivity. A distribution of proppant to be injected into the formation during the treatment is determined, based on the production rate and one or more constraints. The stimulation treatment is performed based on the determined proppant distribution. | 2021-12-30 |
20210404307 | AUTOMATED DIAGNOSTICS OF ELECTRONIC INSTRUMENTATION IN A SYSTEM FOR FRACTURING A WELL AND ASSOCIATED METHODS - Systems and methods for identifying a status of components of hydraulic fracturing units including a prime mover and a hydraulic fracturing pump to pump fracturing fluid into a wellhead via a manifold may include a diagnostic control assembly. The diagnostic control assembly may include sensors associated with the hydraulic fracturing units or the manifold, and a supervisory control unit to determine whether the sensors are generating signals outside a calibration range, determine whether a fluid parameter associated with an auxiliary system of the hydraulic fracturing units is indicative of a fluid-related problem, determine whether lubrication associated with the prime mover, the hydraulic fracturing pump, or a transmission of the hydraulic fracturing units has a lubrication fluid temperature greater than a maximum lubrication temperature, or determine an extent to which a heat exchanger assembly associated with the hydraulic fracturing units is cooling fluid passing through the heat exchanger assembly. | 2021-12-30 |
20210404308 | SYSTEMS AND METHODS TO MONITOR, DETECT, AND/OR INTERVENE RELATIVE TO CAVITATION AND PULSATION EVENTS DURING A HYDRAULIC FRACTURING OPERATION - Systems and methods for monitoring, detecting, and/or intervening with respect to cavitation and pulsation events during hydraulic fracturing operations may include a supervisory controller. The supervisory controller may be configured to receive pump signals indicative of one or more of pump discharge pressure, pump suction pressure, pump speed, or pump vibration associated with operation of the hydraulic fracturing pump. The supervisory controller also may be configured to receive blender signals indicative of one or more of blender flow rate or blender discharge pressure. Based on one or more of these signals, the supervisory controller may be configured to detect a cavitation event and/or a pulsation event. The supervisory controller may be configured to generate a cavitation notification signal indicative of detection of cavitation associated with operation of the hydraulic fracturing pump, and/or a pulsation notification signal indicative of detection of pulsation associated with operation of the hydraulic fracturing pump. | 2021-12-30 |
20210404309 | AUTOMATED DIAGNOSTICS OF ELECTRONIC INSTRUMENTATION IN A SYSTEM FOR FRACTURING A WELL AND ASSOCIATED METHODS - Systems and methods for identifying a status of components of hydraulic fracturing units including a prime mover and a hydraulic fracturing pump to pump fracturing fluid into a wellhead via a manifold may include a diagnostic control assembly. The diagnostic control assembly may include sensors associated with the hydraulic fracturing units or the manifold, and a supervisory control unit to determine whether the sensors are generating signals outside a calibration range, determine whether a fluid parameter associated with an auxiliary system of the hydraulic fracturing units is indicative of a fluid-related problem, determine whether lubrication associated with the prime mover, the hydraulic fracturing pump, or a transmission of the hydraulic fracturing units has a lubrication fluid temperature greater than a maximum lubrication temperature, or determine an extent to which a heat exchanger assembly associated with the hydraulic fracturing units is cooling fluid passing through the heat exchanger assembly. | 2021-12-30 |
20210404310 | SYSTEMS AND METHODS TO MONITOR, DETECT, AND/OR INTERVENE RELATIVE TO CAVITATION AND PULSATION EVENTS DURING A HYDRAULIC FRACTURING OPERATION - Systems and methods for monitoring, detecting, and/or intervening with respect to cavitation and pulsation events during hydraulic fracturing operations may include a supervisory controller. The supervisory controller may be configured to receive pump signals indicative of one or more of pump discharge pressure, pump suction pressure, pump speed, or pump vibration associated with operation of the hydraulic fracturing pump. The supervisory controller also may be configured to receive blender signals indicative of one or more of blender flow rate or blender discharge pressure. Based on one or more of these signals, the supervisory controller may be configured to detect a cavitation event and/or a pulsation event. The supervisory controller may be configured to generate a cavitation notification signal indicative of detection of cavitation associated with operation of the hydraulic fracturing pump, and/or a pulsation notification signal indicative of detection of pulsation associated with operation of the hydraulic fracturing pump. | 2021-12-30 |
20210404311 | Multi-Stage, Limited Entry Downhole Gas Separator - A gas separator for use in a wellbore. The separator has an annular, staged separator system, whereby a liquid-gas mixture is separated into its liquid and gas components. Gas components are allowed to escape up the annulus around the separator, while liquid components are captured on each stage and removed through an inner tube. The inner tube has limited entry ports. These ports may be sized such that ports at the top of the string have a smaller, more limited entry than those toward the bottom. | 2021-12-30 |
20210404312 | DRILLING SYSTEM - A system is provided which includes a bottomhole assembly, a cable assembly, and a controller. The bottomhole assembly is disposed in a wellbore traversing a subterranean formation from a surface of the earth, and includes a drill tool. The cable assembly includes a fiber optic line coupled with the bottomhole assembly. The fiber optic line has a length that traverses a length of the wellbore from the bottomhole assembly to the surface. The fiber optic line is a distributed sensor and measures one or more downhole parameters along the length of the fiber optic line during the drilling of the wellbore. The controller is coupled with the cable assembly, and receives data from the fiber optic line during the drilling of the wellbore by the drill tool. | 2021-12-30 |
20210404313 | AUTOMATED CONCURRENT PATH PLANNING AND DRILLING PARAMETER OPTIMIZATION USING ROBOTICS - A drilling device may use a concurrent path planning process to create a path from a starting location to a destination location within a subterranean environment. The drilling device can receive sensor data. A probability distribution can be generated from the sensor data indicating one or more likely materials compositions that make up each portion of the subterranean environment. The probability distribution can be sampled, and for each sample, a drill path trajectory and drill parameters for the trajectory can be generated. A trained neural network may evaluate each trajectory and drill parameters to identify the most ideal trajectory based on the sensor data. The drilling device may then initiate drilling operations for a predetermined distance along the ideal trajectory. | 2021-12-30 |
20210404314 | Constructing Digital Twins for Oil and Gas Recovery Using Ensemble Kalman Filter - A self-adapting digital twin of a wellbore environment can be created. The self-adapting digital twin incorporates a standalone Ensemble Kalman Filter (EnKF) module with a constant parameter digital twin developed for a fixed environment. The standalone EnKF module receives streaming measurement data from multiple sensors and prediction data from the digital twin and executes the standalone EnKF module using the streaming measurement data and the prediction data from the digital twin. The results of executing the standalone EnKF module are input parameter corrections for the digital twin that are communicated to the digital twin. Output predictions of the digital twin are used to modify operational parameters of an oil or gas recovery process. | 2021-12-30 |
20210404315 | AUTOMATED OPTIMIZATION OF REAL-TIME DATA FREQUENCY FOR MODELING DRILLING OPERATIONS - Systems and methods can automatically and dynamically determine an optimum frequency for data being input into a drilling optimization tool in order to provide predictive modeling for well drilling operations. The methods and systems selectively input sets of data having different frequencies into the drilling optimization tool to build different predictive models at different frequencies. An optimization algorithm such as Bayesian optimization is then applied to the models to identify in real time an optimum frequency for the data sets being input into the drilling optimization tool based on current operational and environmental parameters. | 2021-12-30 |
20210404316 | AUTONOMOUS WELLBORE DRILLING WITH SATISFICING DRILLING PARAMETERS - A system is described for controlling wellbore drilling operations autonomously using satisficing parameters. The system can determine a wellbore-drilling envelope defining a zone for satisficed values of drilling parameters for a drilling operation. The system can receive real-time data for the drilling parameters and can compare the real-time data to the wellbore-drilling envelope. The system can output a command for automatically controlling the drilling operation in response to comparing the real-time data to the wellbore-drilling envelope. | 2021-12-30 |
20210404317 | INTEGRATED COLLAR SENSOR FOR MEASURING PERFORMANCE CHARACTERISTICS OF A DRILL MOTOR - Aspects of the subject technology relate to a sensor for a downhole tool. The downhole tool can include a collar and a sensor. The sensor can be secured to the collar for measuring one or more operational characteristics of the downhole tool during operation of the downhole tool including the performance characteristics of a drill motor. The sensor can include a substrate. The sensor can also include a plurality of strain gauges disposed on the substrate. The plurality of strain gauges can be configured to measure axial strains and torsional strains on the collar for measuring the one or more operational characteristics of the downhole tool. | 2021-12-30 |
20210404318 | PREDICTIVE TORQUE AND DRAG ESTIMATION FOR REAL-TIME DRILLING - Certain aspects and features relate to a system that selects an output value for controlling a drilling tool using dynamic force analysis coupled to fluid effects as part of a model that estimates projected torque and drag. A drilling model according to aspects and features of the present disclosure takes into account pipe axial elasticity as it relates to dynamic, time-based, force analysis and couples this relationship with drilling fluid effects over time. In some examples, a system calculates at least one dynamic sideforce and at least one dynamic, hydraulic force for each interval of time. An equilibrium solution for an output value using the dynamic sideforce and dynamic, hydraulic force for each time interval can be applied to the drilling tool for each time interval during drilling operations. | 2021-12-30 |
20210404319 | INTEGRATED COLLAR SENSOR FOR MEASURING MECHANICAL IMPEDANCE OF THE DOWNHOLE TOOL - Aspects of the subject technology relate to a sensor for a downhole tool. The downhole tool can include a collar and a sensor. The sensor can be secured to the collar for measuring one or more operational characteristics of the downhole tool during operation of the downhole tool. The sensor can include a substrate. The sensor can also include a plurality of strain gauges disposed on the substrate. The plurality of strain gauges can be configured to measure axial strains and torsional strains on the collar for measuring the one or more operational characteristics of the downhole tool. | 2021-12-30 |
20210404320 | Ultrasonic Echo Locating in a Wellbore Using Time Gain Compensation - A sensor system may be used to measure characteristics of an object in a wellbore. The sensor system may include an ultrasonic transducer that generates an ultrasonic wave in a medium of the wellbore and detects a reflection signal of the ultrasonic wave off the object in the wellbore. The sensor system may also include a processing device and a memory device in which instructions are stored. The memory may include instructions that cause the processing device to receive the reflection signal from the ultrasonic transducer, and to truncate and preprocess the reflection signal to generate a truncated reflection signal. The instructions may also cause the processing device to apply time gain compensation to the truncated reflection signal and determine an echo wavelet from the time gain compensated signal representing an echo of the ultrasonic wave off of a wall of the wellbore. | 2021-12-30 |
20210404321 | ACOUSTIC SENSOR SYSTEMS AND METHODS - Disclosed is an acoustic sensor system comprising an electrical connector, at least one transducer connected to the electrical connector, a fluid compensating piston connected to the electrical connector, a housing having the electrical connector, the at least one transducer, and the fluid compensating piston arranged in a linear arrangement, and a collar having the housing mounted along an interior surface of the collar. | 2021-12-30 |
20210404322 | INTEGRATED GAMMA SENDOR CONTAINER - Aspects of the subject technology relate to a sensor container for a downhole tool. The sensor container can be mountable in a receiver space on a carrier that is insertable into a wellbore. The sensor container can comprise a container body having a receiving space to which a shock-sensitive sensor is couplable. Further, the sensor container can comprise a shock absorber positioned at a lateral side thereof. The shock absorber can be configured to buffer shock forces and vibration forces acting thereupon. | 2021-12-30 |
20210404323 | RECESSED POCKETS FOR A DRILL COLLAR - A drill collar having at least one pocket for receiving at least one component. The at least one pocket includes a rectangular portion that extends from a first end to a second end. The rectangular portion also includes a base surface. Each of the first and the second ends includes a transition surface extending from the base surface to a pair of shoulder surfaces and a channel. The pair of shoulder surfaces and a surface of the channel are parallel to the base surface. The channel extends to an end pocket that can be in communication with an aperture. | 2021-12-30 |
20210404324 | TAGGING ASSEMBLY INCLUDING A SACRIFICIAL STOP COMPONENT - An apparatus for determining a location of an inner string in an outer string includes an axis parallel to a longitudinal axis of the inner string, and a tagging assembly disposed at a tagging location in the outer string, the outer string configured to be deployed into a borehole in a subterranean region, the inner string configured to be advanced through the outer string. The tagging assembly includes a stop component configured to obstruct axial movement of the inner string through the outer string at the tagging location, the stop component configured to be displaced in response to an axial force applied to the stop component by the inner string, to permit the inner string to advance axially beyond the tagging assembly. | 2021-12-30 |
20210404325 | USE OF TOOL DATA TO EQUALIZE A CHANNEL RESPONSE - A logging tool is positioned downhole in a wellbore, where the logging tool communicates with a computer on the Earth's surface over an analog signal path. Tool data is received from a sensor associated with the logging tool and encoded into a symbol signal. The symbol signal is transmitted to a receiver system via the analog signal path. The receiver system has one or more filters to filter the symbol signal. The one or more filters includes an equalizer filter indicative of an analog signal path response of the analog signal path. The filtered symbol signal is decoded into second tool data. The second tool data is encoded into second symbols and based on the second symbols, an updated analog signal path response of the analog signal path is generated to update the equalizer filter. | 2021-12-30 |
20210404326 | ELECTROMAGNETIC TELEMETRY SYSTEM - An electromagnetic telemetry (EMT) system is provided. A downhole transceiver sub is coupled with a downhole tool. The downhole transceiver sub and the downhole tool positioned in a wellbore having a casing extending along a length of the wellbore. The downhole transceiver sub transmits data from the downhole tool by passing a current through the casing to radiate electromagnetic fields. An uphole transceiver sub is disposed uphole from the downhole transceiver sub. The uphole transceiver sub is operable to measure the electromagnetic fields. The measured electromagnetic fields are decoded to obtain the data from the downhole tool. | 2021-12-30 |
20210404327 | DOWNHOLE DISPLAY - Downhole display systems and methods. A display of one or more portions of a well log of a well during drilling may be displayed together with a display of one or more portions of one or more reference well logs, which may be presented as projected onto one or more planes, respectively. The logs may be segmented and correlated, with the segments or correlated portions displayed in different colors. A user may manipulate the display of the logs or log segments to assist in correlating them. The user may also manipulate the display so that the view provided of the wellbore and the projected logs changes in any one or all of three dimensions. In addition, the user may manipulate the display by navigating along the length of the borehole to view the projected logs at any point along the well path. | 2021-12-30 |
20210404328 | SELF-ADAPTING DIGITAL TWINS - A system and method can be used for implementing self-adapting digital twins. The system may include operations for estimate a state matrix characterizing behavior of a hydrocarbon recovery process implemented by a hydrocarbon recovery tool. Observed values of one or more sensors for at least one process parameter may be obtained from sensors deployed throughout the drilling environment. These sensors may be physical sensors acquiring information about physical changes within the drilling environment; and processes monitoring output of system functions and/or other processes. A data assimilation tool may be applied to the estimated state matrix and the observed values to produce an updated state matrix. The updated state matrix may be used as the previous state matrix in a subsequent time step, thus implementing a self-adapting digital twin model. | 2021-12-30 |
20210404329 | METHOD FOR IDENTIFYING GEOLOGICAL AND DRILLING PATTERNS IN A UNIDIMENSIONAL SPACE VIA PERIODIC ORTHOGONAL FUNCTIONS APPLIED TO DRILLING PARAMETER DATA - The present invention relates to a technique for identifying geological and drilling patterns by analyzing data from drilling parameters, using periodic orthogonal functions applied to such data. The use of averages to convert time data to depth data acts as a low-pass filter, attenuating the textural information from the torque data. Therefore, with the use of simple statistical filters combined with the use of multidimensional data visualization methods, it is possible to discretize drilling and geological patterns in the depth data acquired, aiding in the characterization of the top of the pre-salt carbonate reservoir, minimizing the geological and engineering risk in these operations. It is noted that in some situations of well kill, it is common not to have perceptible contrasts when analyzing the drilling parameters in the transition between the basal anhydrite and the carbonates, with the use of techniques such as PCA (Principal Components Analysis) being necessary in order to increase the method's power of discrimination. The technique disclosed minimizes the exploratory risks in pre-salt kill situations, as it allows precise characterization of the top of the carbonate reservoir. | 2021-12-30 |
20210404330 | MUD GAS LOG TRANSFORMATION - Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving a mud gas log and a reference log of a subterranean formation; comparing a shape of a graph of the mud gas log to a shape of a graph of the reference log to determine an extent of similarity between the shape of the mud gas log graph and the shape of the reference log graph; and in response to determining that the mud gas log graph and the reference log graph have a threshold extent of similarity, transforming the mud gas log graph to track the shape of the reference log graph, wherein the transformation is performed while maintaining a total gas sum of the mud gas log. | 2021-12-30 |
20210404331 | FINE IDENTIFICATION METHOD OF TIGHT RESERVOIR FRACTURE BASED ON CONVENTIONAL LOGGING DATA - The present disclosure provides a fine identification method of a tight reservoir fracture based on conventional logging data. The method includes: eliminating a logging interference factor from a non-fracture response, choosing a basic lithological background for fracture identification, analyzing logging response features on different fracture scales, analyzing fracture aperture and filling features on a scale that can be identified by conventional logging data, identifying occurrence of an open fracture, and identifying a development degree of a fracture through a relative amplitude difference between a deep resistivity and a bedrock resistivity. The method of the present disclosure is suited for fine evaluation of a tight reservoir fracture. Compared with a traditional method, the present disclosure improves systematicness and geological compliance of conventional logging to identify large-scale fractures, and further analyzes micro-scale fracture identification, providing technical support and an analysis method for tight reservoir development. | 2021-12-30 |
20210404332 | Formation Testing And Sampling Tool For Stimulation Of Tight And Ultra-Tight Formations - A fluid sampling tool and method for fluid sampling in an ultra-tight or tight formation. The tool may include a packer assembly that includes one or more inflatable packers and one or more exhaust ports, a multi-chamber section that includes one or more sample chambers, and at least two storage sections that each contain a storage tank, wherein each storage tank holds a stimulation fluid. A method for performing a stimulation operation that includes disposing a fluid sampling tool into a well, moving the fluid sampling tool to a zone of interest, and isolating the zone of interest with a packer assembly on the fluid sampling tool. The method may further include performing a first pressure draw down and a first pressure build up, performing an injectivity test, and performing a sampling process. | 2021-12-30 |
20210404333 | Microbiome Based Systems, Apparatus and Methods for the Exploration and Production of Hydrocarbons - There are provided methods, systems and processes for the utilization of microbial and related genetic information for use in the exploration, determination, production and recovery of natural resources, including energy sources, and the monitoring, control and analysis of processes and activities. | 2021-12-30 |
20210404334 | DYNAMIC FORMULATION OF WATER-BASED DRILLING FLUIDS - Drilling fluid can be monitored throughout a drill site and at various stages of drilling operations. The drilling fluid may be analyzed to identify components that make the drilling fluid as well as the volume of each of the components, The volume of each component can be used, for example, to determine a percentage of water in a water-based drilling fluid and the average specific gravity of the water-based drilling fluid without further decomposition of the drilling fluid. The percentage of water and the average specific gravity can then be used to modify the drilling fluid, in real-time, based on conditions in the wellbore. | 2021-12-30 |
20210404335 | IN-SITU RESERVOIR FLUID ANALYSIS SYSTEM - The disclosed embodiments include systems and methods to perform in-situ analysis of reservoir fluids. In some embodiments, the system includes a first vial containing a first insulating cylinder having a first internal cavity for storing electrolytes, a capillary tube, and a first sealable end having a first seal that prevents the electrolytes that are stored in the first internal cavity from flowing through the first sealable end while the first seal remains intact. The system also includes a second vial containing a second insulating cylinder having a second internal cavity for receiving the electrolytes that are stored in the first insulating cylinder, and a second sealable end having a second seal. The system further includes a tube positioned between the first vial and the second vial, where the tube provides at least one fluid flow path between the first vial and the second vial. | 2021-12-30 |
20210404336 | Gel Prediction Modeling of Wellbore Fluids Using Rheology Measurements - Systems and methods for adjusting well operations utilize measured values and curve fitting to determine predicted values of the gel strength of well-treatment fluids. The systems and methods are exemplified by first measuring a plurality of measured values representative of the gel strength of the well-treatment fluid, then determining a mathematical function that fits the plurality of measured values. From the mathematical function, the projected values are determined. The projected values are representative of the gel strength for the well-treatment fluid after a projected-value static period. | 2021-12-30 |
20210404337 | SYNERGISTIC MINING METHOD FOR UNDERGROUND MINING, SEPARATION AND FILLING FOR A CLOSE DISTANCE COAL SEAM GROUP - A synergistic mining method for underground mining, separation and filling for a close distance coal seam group is applicable to the mining engineering field. Full-mechanized caving mining is carried out for a close distance coal seam group, an underground coal gangue separation system and a filling face are designed according to the yield of gangue in the production process; the gangue produced in the mining process is transported centrally into an underground coal gangue separation chamber, and the separated gangue is transported to the filling face for filling and mining; the gangue produced at the filling face is transported back to the filling face for backfilling after underground washing separation. The method separates nearby and filling at selected locations, reduces the damage and disturbance to the underground rock mass that may be caused by a conventional mining method, and solves problems in treatment of strong dynamic pressure in advance. | 2021-12-30 |
20210404338 | SYSTEM FOR EXTRACTING WATER FROM LUNAR REGOLITH AND ASSOCIATED METHOD - The system extracts water from lunar regolith and includes a regolith intake having a digging bucket that collects lunar regolith soil and a gravel separator that separates and discharges gravel and passes a mixture of ice-regolith powder having ice grains that are about 10-100 microns along the conveyor. A pneumatic separator receives the ice-regolith powder and pneumatically splits the ice-regolith powder into streams of different sized lithic fragments and ice particles per the ratio of inertial force and aerodynamic drag force of the lithic fragments and ice particles. Each split stream may include a magnetic separator that separates further the magnetic and paramagnetic lithic fragments from ice particles to discharge up to 80 percent of lithic fragments to slag. | 2021-12-30 |
20210404339 | MOTION CONVERSION ASSEMBLY FOR PUMP AND PUMP INCLUDING SAME - A motion conversion apparatus ( | 2021-12-30 |
20210404340 | METHOD FOR PICKLING A TURBOMACHINE COMPONENT - The invention relates to a method for pickling a turbomachine component ( | 2021-12-30 |
20210404341 | STIFFENED TORQUE TUBE FOR GAS TURBINE ENGINE - A gas turbine engine rotor assembly comprises a torque tube, turbine stage and stiffening mass. The torque tube comprises a shaft extending from a forward location to an aft end, and a shaft fastening flange disposed at the aft end. The turbine stage comprises a disc, a disc adapter extending forward from the disc, and a disc fastening flange extending from the disc adapter and couplable to the shaft fastening flange at an interface. The stiffening mass is positioned proximate the interface to reduce operational stress in the torque tube. A method of reducing operational stress in a rotor assembly comprises de-stacking a rotor stack, separating a first stage rotor disc adapter from a torque tube, attaching a stiffening mass to an inner diameter of one or both of the disc adapter and the torque tube, attaching the disc adapter to the torque tube, and re-stacking the rotor stack. | 2021-12-30 |
20210404342 | LOW SPEED FAN TIP CAMBER - A fan blade for a gas turbine engine has a covered passage. A cross section through the fan blade at a point along the blade span is defined as having particular change in angle (α3−α1) of the camber line between the leading edge and the trailing edge and/or between the leading edge and the point on the camber line that corresponds to the start of the covered passage. | 2021-12-30 |
20210404343 | COMPOSITE FAN BLADE - A blade fabrication method is provided and includes additively manufacturing a core, securing the core to a mandrel, electroforming a leading edge sheath directly onto the core and the mandrel and removing the mandrel from the core and the leading edge sheath. | 2021-12-30 |
20210404344 | BLADE WITH TIP RAIL COOLING - An apparatus and method for cooling a blade tip for a turbine engine can include an blade, such as a cooled turbine blade, having a tip rail extending beyond a tip wall enclosing an interior for the blade at the tip. A plurality of film-holes can be provided in the tip rail. A flow of cooling fluid can be provided through the film-holes from the interior of the blade to cool the tip of the blade. | 2021-12-30 |
20210404345 | SCREW ROCKET NOZZLE - A screw rocket nozzle may include a disc shaped nozzle body and a spiral flow path having an inlet and an outlet. In some examples the flow path is radial with the inlet positioned at a higher pressure region than the outlet. | 2021-12-30 |
20210404346 | FAN TRACK LINER - A fan track liner for a fan containment arrangement for a gas turbine includes a cellular impact structure and a supporting sub-laminate integrally formed with each other from fibre-reinforced material. The fan track liner further includes a ballistic barrier comprising a woven reinforcing fibre ply and a layer of reinforcing fibre felt. There is also disclosed an associated fan containment arrangement and a method of manufacturing a fan track liner. | 2021-12-30 |
20210404347 | ANNULAR ASSEMBLY FOR A TURBOMACHINE - The invention relates to an annular assembly for a dual-flow turbomachine having a longitudinal axis (A) and comprising a casing ( | 2021-12-30 |
20210404348 | TURBINE ENGINE SEALING AND METHOD - Aspects of the disclosure generally relate to a turbine engine and method of operating, wherein a change in sealing status can be determined within a cavity between an outer casing and a rotor within the turbine engine. Aspects of the disclosure further relate to a supply of air to the cavity within the turbine engine. | 2021-12-30 |
20210404349 | 660MW SUPERCRITICAL UNIT BYPASS CONTROL SYSTEM AND CONTROL METHOD THEREOF - A 660MW supercritical unit bypass control method after a load rejection is provided. Steam channels after the load rejection are switched without an interference, and ache steam pressure is controllable. The 660MW supercritical unit bypass control method includes Pipeline | 2021-12-30 |
20210404350 | POWER GENERATION SYSTEM - A system may include a turbine and a recuperative heat exchanger system. The recuperative heat exchanger system is configured to receive exhaust gases from the turbine. The recuperative heat exchanger system may include a precool section to cool the exhaust gases, a major heating section to receive the cooled the exhaust gases, and a minor heating section to receive the cooled the exhaust gases. | 2021-12-30 |
20210404351 | VALVE TIMING ADJUSTMENT DEVICE - An Oldham coupling includes: a driven Oldham flange that is formed at a drive-side rotor; a drive Oldham flange that is formed at a planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange. A thrust section is formed at a rotor plate portion which is a portion other than the Oldham coupling. The thrust section is configured to limit tilting of the planetary rotor relative to the driven Oldham flange when the thrust section contacts the planetary rotor in an axial direction. There is satisfied a relationship of θ2>θ1 where: θ1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and θ2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling. | 2021-12-30 |
20210404352 | VALVE TIMING ADJUSTMENT DEVICE - A drive-side rotor is rotated synchronously with a crankshaft. A driven-side rotor is rotated integrally with a camshaft. An internal gear section is formed at the driven-side rotor. An Oldham coupling includes: a driven Oldham flange that is formed at the drive-side rotor; a drive Oldham flange that is formed at the planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange while permitting eccentricity between the driven Oldham flange and the drive Oldham flange. There is satisfied a relationship of θ | 2021-12-30 |
20210404353 | METHOD TO ATTACH COPPER ALLOY VALVE INSERTS TO ALUMINUM CYLINDER HEAD - A system to attach valve seat inserts to an aluminum cylinder head of an automobile vehicle includes a cylinder head of an automobile vehicle engine having a valve seat portion. A valve seat insert is positioned in the valve seat portion of the cylinder head. A fusion bond is created between the valve seat insert and the valve seat portion by laser welding thereby fusing the valve seat insert to the valve seat portion. | 2021-12-30 |
20210404354 | OIL DRAINING SYSTEM - A system is provided for removing oil from an oil filter of a motor vehicle. The system includes a housing with a top rim, an upper portion, a lower portion, and a bottom rim. The top rim of the housing includes a first diameter. The housing includes the bottom rim with a second diameter that is less than the first diameter. The system also includes an upper cap with a flange including a first side and an opposing second side. The flange is disposed at a top portion of the upper cap. The first side of the flange is coupled to the top rim of the housing. A bottom portion of the upper cap extends into the housing. The upper cap includes a central aperture for draining the oil from the oil filter into the housing. | 2021-12-30 |
20210404355 | EXHAUST TREATMENT SYSTEM AND METHOD - An exhaust gas ozone purification method, specifically comprising: enabling a mixing reaction between an ozone stream and an exhaust gas stream, and removing nitric acid from mixed reaction products between the ozone stream and the exhaust gas stream by using an electrocoagulation device. The electrocoagulation device comprises: a first electrode ( | 2021-12-30 |
20210404356 | ASYMMETRICAL CHANNEL STRUCTURE OF PARTICULATE TRAP FILTER BODY - A particulate trap filter body has asymmetrical channels. The cross-sectional shape of the asymmetrical channel structure includes a combination of hexagonal, square and triangular shapes. The hexagonal channel and the triangular channel act as inlet channel, and the square channel acts as outlet channel. Compared with the traditional symmetrical filter body structure, the inlet channel volume and filter body wall area can be effectively increased by more than 30%, which means that with capturing the same amount of particles, the particle cake layer formed on the wall surface is thinner. The limiting carbon load of the new channel structure is increased by more than 30%, having a very positive effect on reducing the regeneration frequency and prolonging the service life of the trap. | 2021-12-30 |
20210404357 | PARTICLE FILTER WITH A PLURALITY OF COATINGS - The invention relates to a wall-flow filter, to a method for the production and the use of the filter for reducing harmful exhaust gases of an internal combustion engine. The wall-flow filter was produced by exposing the filter at least twice successively to a powder-gas aerosol. | 2021-12-30 |
20210404358 | RECUPERATIVE HEAT EXCHANGER SYSTEM - A system may include a turbine and a recuperative heat exchanger system. The recuperative heat exchanger system is configured to receive exhaust gases from the turbine. The recuperative heat exchanger system may include a precool section to cool the exhaust gases, a major heating section to receive the cooled the exhaust gases, and a minor heating section to receive the cooled the exhaust gases. | 2021-12-30 |
20210404359 | SYSTEM FOR A COMBINED SPARK ARRESTOR AND MUFFLER ASSEMBLY - Systems and methods are provided for a combined spark arrestor and muffler assembly. In one example, a system may include a combined housing, the combined housing including a spark arrestor portion including a plurality of stator fins, and a muffler portion including acoustic packing, the muffler portion fluidically coupled to the spark arrestor portion via a first sliding joint and a second sliding joint. In this way, a single component of a vehicle exhaust system may reduce sparks and/or carbon deposits in exhaust gas, while also reducing exhaust noise. | 2021-12-30 |
20210404360 | PROCESS TO CAPTURE SOx ONBOARD VEHICLES AND SHIPS - Provided is a process that may comprise cooling an engine exhaust emissions comprising SO | 2021-12-30 |
20210404361 | EXHAUST AFTERTREATMENT SYSTEM WITH THERMALLY CONTROLLED REAGENT DOSER - An exhaust aftertreatment system for use with an over-the-road vehicle is disclosed. The exhaust aftertreatment system includes a flash-boil doser mounted to an exhaust conduit and a catalyst coupled to the exhaust conduit. The flash-boil doser configured to inject heated and pressurized reducing agent into an exhaust passageway defined by the exhaust conduit for distribution throughout exhaust gases passed through the exhaust conduit. The catalyst configured to react the reducing agent with the nitrous oxide in the flow of exhaust gases to provide treated exhaust gases with a reduced nitrous oxide amount. | 2021-12-30 |
20210404362 | SYSTEMS AND METHODS FOR HEATING AN AFTERTREATMENT SYSTEM - A method for warming an aftertreatment system of an engine system while an engine of the engine system is not running comprising starting at least one of an electric compressor and an electric heater using stored electrical energy and passing air through the engine system to at least a portion of the aftertreatment system when the engine of the engine system is not running. | 2021-12-30 |
20210404363 | HEATING DEVICE, PURIFICATION DEVICE, EXHAUST LINE, MANUFACTURING METHOD OF THE HEATING DEVICE - A heating device comprises a heating element having a central area and a peripheral edge. The heating element has a series of slots delimiting a series of longitudinal branches connected to one another by elbows. The central area is made of a first electrically conductive material that is permeable to exhaust gases and has a first relative density. The elbows are located in the peripheral edge and are made of a second electrically conductive material and that has a second relative density greater than the first relative density. | 2021-12-30 |
20210404364 | LEAN BURN INTERNAL COMBUSTION ENGINE EXHAUST GAS CONTROL - System and methods are described for optimizing exhaust flow rate and temperature during specified operational periods warm-up and keep-warm conditions, by minimizing or maximizing heat flux during those specified operational periods. | 2021-12-30 |
20210404365 | SYSTEMS AND METHODS FOR DRY CHEMICAL REDUCTANT INSERTION IN AFTERTREATMENT SYSTEMS - A reductant insertion system for an after treatment system configured to decompose constituents of an exhaust gas, includes: a dry reductant tank configured to contain a dry reductant; a reductant delivery line configured to operatively couple the dry reductant tank to the after treatment system for delivery of the dry reductant to the after treatment system; and a pressurized gas source configured to communicate the dry reductant to the after treatment system through the reductant delivery line using pressurized gas. | 2021-12-30 |
20210404366 | DIESEL EXHAUST FLUID DOSER PROTECTION DURING COLD AMBIENT TEMPERATURE CONDITIONS USING CYLINDER CUTOUT METHODS - A system includes an exhaust aftertreatment system in exhaust gas receiving communication with an engine including a plurality of cylinders where the engine is structured to operate according to low load conditions and where a controller is structured to determine that at least one diesel emissions fluid (DEF) doser is frozen based on at least one of an ambient air temperature and a DEF source temperature. The controller is structured to operate the engine according to a skip-fire mode in response to a DEF flag indicating that the at least one DEF doser is frozen. The skip-fire mode comprises firing a portion of the plurality of cylinders that is less than a total amount of cylinders of the plurality of cylinders. The controller is structured to discontinue the skip-fire mode in response to determining that the at least one DEF doser is likely thawed. | 2021-12-30 |
20210404367 | VEHICLE EXHAUST SYSTEM WITH END CAP MIXER - A vehicle exhaust system includes an upstream exhaust component comprising at least a first catalyst having a first outer dimension, a downstream exhaust component comprising at least a second catalyst having a second outer dimension, and a mixer that connects the upstream and downstream exhaust components. The mixer comprises a first portion associated with an outlet from the first catalyst and a second portion associated with an inlet to the second catalyst. The first portion includes a swirl component having a first length and the second portion includes an additional component having a second length. A connection interface between the first and second portions allows the upstream and downstream exhaust components to be arranged in different positions relative to each other. A combined length of the first and second lengths is adjusted relative to the first and second outer dimensions to achieve a desired position of the upstream and downstream exhaust components relative to each other. | 2021-12-30 |
20210404368 | DEGRADATION DIAGNOSIS DEVICE FOR EXHAUST GAS CONTROL CATALYST - A degradation diagnosis device includes a downstream air-fuel ratio sensor and a control device. The control device is configured to perform a rich process and a lean process alternately and repeatedly in a degradation diagnosis process for diagnosing degradation of the exhaust gas control catalyst. The control device is configured to, in the degradation diagnosis process, determine that the exhaust gas control catalyst has been degraded when the lean process is executed and the frequency with which an output air-fuel ratio of the downstream air-fuel ratio sensor is equal to the lean air-fuel ratio is equal to or more than a predetermined frequency. | 2021-12-30 |
20210404369 | DUAL FUNCTION MANIFOLD ASSEMBLY INCORPORATING A DETACHABLE CATALYTIC CONVERTER - A replacement kit for use with a motor vehicle that was originally equipped with an exhaust system including an exhaust manifold and a catalytic converter welded thereto. The replacement kit includes a replacement catalytic converter arranged for use during use of the motor vehicle on public roads. Rather than welding, the replacement catalytic converter attaches to the exhaust manifold using a clamp to form a gas-tight seal. The clamp is arranged to move from the closed position to an open position to enable disengagement of the replacement catalytic converter from the exhaust manifold and substitution of a bypass pipe in place of the replacement catalytic converter to increase performance characteristics of the vehicle during off-road use. | 2021-12-30 |