Entries |
Document | Title | Date |
20080223568 | Pipe Expander - An expander is provided for radially expanding a tubular element, the expander having an axially forward direction and being provided with thrust means for exerting a thrust force to the expander to move the expander in axially forward direction through the tubular element. The expander comprises an adjustable cone having an expander surface tapering radially inward in the axially forward direction, the adjustable cone being movable between a radially expanded mode and a radially collapsed mode. The expander further comprises adjusting means for moving the adjustable cone from the collapsed mode to the expanded mode by the action of said thrust force exerted to the thrust means. | 09-18-2008 |
20090200009 | PERFORATING SYSTEM WITH SHAPED CHARGE CASE HAVING A MODIFIED BOSS - A perforating gun having a charge case with a boss element partially circumscribing Optionally the pair of bosses may be included that are substantially symmetric about the axis of the charge case. Forming a shaped charge with such a charge case allows for gun strips to be formed with increased web material between adjacent shape charges in the gun strips. The increased web material provides for a more structurally sound gun tube, especially when dealing with high density charges. Notches may be provided in the gun tube on the outer radius of the holes formed to receive the shape charges, the notches are to be aligned with the bosses on the outer periphery of the shaped charge case. This also may orient the charge cases so they are pre-aligned for ready connection to an associated detonation cord. | 08-13-2009 |
20100032151 | Convertible downhole devices - A convertible downhole device comprises at least one sacrificial material to provide two or more configurations so that two or more different operations or functions are performable by the downhole device, one in which the sacrificial material is fully intact and another in which the sacrificial material is at least partially removed or disappeared. The sacrificial material may be removable through any suitable method or device, such as by contacting with a fluid, by temperature, by pressure, or by combustion, ignition, or activation of a fusible or energetic material, or crushing or breaking up of a frangible material. Upon removal of the sacrificial material, the downhole device has at least one additional configuration so that at least a second operation can be performed by the downhole device. | 02-11-2010 |
20100044025 | Fluid perforating/cutting nozzle - The fluid perforating/cutting nozzle is configured to provide long life to the nozzle. The nozzle is composed of a cylindrical shaft defining a bore for the passage of cutting fluid and having inlet and outlet ends, a shank portion and a relatively large diameter shroud disposed on the outlet end. The shroud protects both the nozzle and the tool from the high pressure cutting fluid reflecting off the surface of a workpiece. | 02-25-2010 |
20100126710 | Stroker Tool - A stroker tool for providing an axial force in an axial direction of a downhole tool. The stroker tool has a pump, a driving unit for driving the pump, and an axial force generator. The generator has an elongated piston housing having a first and a second end, and a piston provided on a shaft, and the shaft penetrates the housing for transmitting the axial force to another tool. The piston is provided in the piston housing so that the shaft penetrates the piston and each end of the piston housing and divides the housing into a first and a second chamber, and the first and the second chamber are each fluidly connected to the pump via at least one duct so that the pump can pump fluid into one chamber by sucking fluid from the other chamber for moving the piston within the housing, and thereby moving the shaft back and forth. | 05-27-2010 |
20100147504 | USE OF BARITE AND CARBON FIBERS IN PERFORATING DEVICES - Disclosed are compositions that comprise mixtures of barite and carbon fiber material and further may include steel and a binder. The compositions may be utilized for manufacturing perforator devices, including perforating guns. | 06-17-2010 |
20100212881 | Dual Mini Well Surface Control System - A well surface control system for use with various types of work strings such as, but not limited to, drill strings, coiled tubing, snubbing pipe, electric line, production tubing, and wireline. The system includes a main housing with a main bore extending from one end to the other. The main housing is equipped with a side port which communicates with the main bore between the two ends. The main housing is also equipped with two valves for controlling fluid and/or gas flows through the main bore and for severing a component of a work string running through the main bore. The first valve is positioned between the side port and one end of the main housing and the second valve is positioned between the side port and the other end of the main housing. Attached to each end of the main housing is a saver sub, with means for temporarily locking the saver subs to the main housing to prevent circular and longitudinal movement of the saver subs in relation to the main housing. | 08-26-2010 |
20110192589 | OPTIMIZED MACHINING PROCESS FOR CUTTING TUBULARS DOWNHOLE - The tubular cutting tool for severing downhole tubulars, the tool having a drive system, a pivoting system, a cutting head, a cutting member, and a lubricant delivery system. Cutting may be accomplished by rotatingly actuating the cutting head with an associated motor and extending the cutting member away from the cutting head. The lubricant delivery system lubricates the respective contacting surfaces of the cutting member and the tubular and is actuated when the cutting member extends from the cutting head. | 08-11-2011 |
20120006529 | BLOWOUT PREVENTERS AND METHODS OF USE - Methods and apparatuses for severing a wellbore tubular, the apparatus, in certain aspects, including: a first member movable toward a tubular to be severed; a second member with a second blade disposed opposite to the first member and movable toward the tubular; a first blade on the first member having a projection projecting from a center of a blade body with point structure on the projection for puncturing the tubular and cutting surfaces on the projection for cutting the tubular; and cutting surfaces, as needed, on the blade body adjacent the projection for cutting the tubular. | 01-12-2012 |
20120024519 | Methods and Devices for One Trip Plugging and Perforating of Oil and Gas Wells - A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is designed to permit running and setting a bridge plug, and then perforating the well bore without requiring the removal of the tool string. An eccentric weight bar can also be used to allow for directional perforating in non-vertical wells. The eccentric weight bar uses gravity to cause the bar to rotate to a predetermined position. | 02-02-2012 |
20120181012 | Downhole Tool Delivery System With Self Activating Perforation Gun - An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores. | 07-19-2012 |
20120193087 | Shear Blade Geometry and Method - A pair of shear blades and a blowout preventer having the pair of shear blades. The shear blades are configured to cut a tubular inside the blowout preventer. The shear blades have different geometries of the front cutting surfaces. One geometry promotes a secure positioning of the tubular relative to the first blade while the second geometry promotes a puncturing of the tubular by the second blade. | 08-02-2012 |
20120241142 | Apparatus for Deploying and Activating a Downhole Tool - An apparatus for deploying and activating a downhole tool activated by an explosive charge such as a drill pipe cutter or hole puncher. The apparatus includes a sealing member with an external wedge-shaped profile that forms a metal-to-metal partial seal with a profile at the top end of a pipe joint in a drill pipe string. The apparatus includes an impact force absorbing device that maintains a firing rod in a non-actuated position during impact of the apparatus. The apparatus includes a differential pressure piston that actuates at a pre-determined well bore pressure to release the firing rod to activate the downhole tool. | 09-27-2012 |
20120255722 | PERFORATING STRING WITH LONGITUDINAL SHOCK DE-COUPLER - A shock de-coupler for use with a perforating string can include perforating string connectors at opposite ends of the de-coupler, a longitudinal axis extending between the connectors, and a biasing device which resists displacement of one connector relative to the other connector in both opposite directions along the longitudinal axis, whereby the first connector is biased toward a predetermined position relative to the second connector. A perforating string can include a shock de-coupler interconnected longitudinally between components of the perforating string, with the shock de-coupler variably resisting displacement of one component away from a predetermined position relative to the other component in each longitudinal direction, and in which a compliance of the shock de-coupler substantially decreases in response to displacement of the first component a predetermined distance away from the predetermined position relative to the second component. | 10-11-2012 |
20120267093 | Galvanically Isolated Exit Joint for Well Junction - A well system for forming a window in a casing string positioned in a wellbore. The system includes first and second steel casing joints ( | 10-25-2012 |
20120318493 | Pipe Guide Arms for Blind Shear Rams - A pipe shear ram assembly has a housing having a bore extending vertically therethrough for the passage of a pipe string. Ram blocks have blades positioned such that one slides over the other when the first and second ram blocks are moved toward each other to shear a well pipe. A pair of guide arms extend from one of the rams. The guide arms have tips protruding a greater distance than the blade. Each of the guide arms has an inboard wedge surface beginning at the tip and extending along a line that intersects the longitudinal axis for guiding the pipe string toward a bore axis of the bore in the event the first and second ram blocks are moved to the closed position. | 12-20-2012 |
20130025843 | Managing Pressurized Fluid in a Downhole Tool - A wellbore apparatus includes a connector sub assembly having a body, the body having a first end adapted to couple to a first perforating sub component and a second, axially opposed end adapted to couple to a second perforating sub component. The connector sub body defines a cavity proximate the second end of the connector sub body; and a flow path in fluid communication with the cavity and a location exterior to the wellbore apparatus. The apparatus includes a valve residing in the flow path and actuatable to block or allow fluid flow from the cavity, through the flow path, to the location exterior to the wellbore apparatus. | 01-31-2013 |
20130032326 | ISOLATED SHEARING MECHANISM FOR DOWNHOLE TOOLS - A shearing mechanism in which a male component mates into a female component, the male component having a first groove extending around the male component and the female component having a second groove extending around the female component, the first groove and the second groove cooperating when the male component is inserted into the female component to define an annular recess. A shearing component is provided within the annular recess, the shearing component having a shear load that is controlled by the material and size of the shearing component. An opening is provided within one or both of the male component and female component, the opening being aligned with the annular recess. Stress relief is provided. | 02-07-2013 |
20130037255 | RUST RESISTANT WELL PERFORATING GUN WITH GRIPPING SURFACES - A rust resistant well perforating gun to fractionate a formation adjacent a well can include a gun carrier with recesses, threaded sections, seal bores, and a first coating to prevent rust. The rust resistant well perforating gun can have a charge loading tube for slidably engaging with the gun carrier. The charge loading tube can have charge holes, rear charge holes, end caps, and a second coating to prevent rust. | 02-14-2013 |
20130112393 | ULTRA HIGH PRESSURE HYDRAULIC SUBLEVEL PIPE CUTTER - An ultra-high pressure (UHP) cutting device for insertion into a wellbore for cutting the casing of the wellbore from within the wellbore is provided. The cutting device comprises a UHP hose connector for connection with a UHP hose in communication with a fluid source; a rotatable UHP tube with a top end in fluid communication with the UHP hose connector and a bottom end opposite the top end; a rotating means in operational communication with the UHP tube for rotating the UHP tube during operation of the cutting device; and a cutter head in fluid communication with the bottom end of the UHP tube. | 05-09-2013 |
20130118727 | Window Joint for Lateral Wellbore Construction - A system for opening a window ( | 05-16-2013 |
20130126153 | Blowout Container - A system for containing and recovering from the blowout of an oil or gas well. The blowout containment (BOC) system is operable in place of, or as a failsafe alternative to, standard blowout preventer (BOP) systems. The BOC system includes a hydraulically operated gate valve positioned over the well at the wellhead. The gate valve includes a check valve operable when the gate valve is closed. The BOC system further includes at least one shearing assembly positioned over the gate valve. The shearing assembly orients explosive charges into the well flow path. An activation trigger detonates the explosive charges to clear the well flow path of obstructions to permit the gate valve to close. Operation of the BOC system is preferably monitored and controlled from a remote location apart from the rig associated with the well. | 05-23-2013 |
20130153203 | Subterranean Tool with Shock Absorbing Shear Release - A subterranean tool can be actuated with one or more control lines for a hydraulic release. It can further be actuated with a shear release after a lockout feature for the shear release is defeated. The shear release features a lock that limits relative movement so that a shear member can be defeated but without a release. A dog limits relative movement in a wider groove where dog movement in the groove allows a shock absorbing feature to act to cushion the release as the shear member breaks. The relative movement is reversed to let a retaining ring drop out of the way into a groove that comes into alignment with it. The relative movement is reversed again to pull a sleeve out from under gripping collets that have previously failed to release and the tool releases from that point on the same way as the control line actuated release. | 06-20-2013 |
20130153204 | RAM BOP SHEAR BLADE PROCESS TO ENHANCE THE TOUGHNESS - A shear ram assembly apparatus for providing the capability to shear larger diameter well casings and internal components during ram-type blowout preventer operation while requiring less force to perform the cutting. Components of the shear ram assembly apparatus, include but not limited to a plurality of hardened cutting blades that are coated with a compound that increases the hardness and reduces the coefficient of friction of the cutting blades. In this regard, a smaller force is required to perform the cutting and the cutting blades receive less wear per cut and provide greater assurance that each cut of this failsafe apparatus is successful. | 06-20-2013 |
20130153205 | ELECTRICAL CONNECTOR MODULES FOR WELLBORE DEVICES AND RELATED ASSEMBLIES - An electrical connector module is for completing an electrical connection in a wellbore device. The module has an outer surface having at least one groove that receives and frictionally retains an electrical wire in a circuitous path that relieves strain on the wire. An electrical connector is at least partially disposed in the at least one groove and is connected to the electrical wire. | 06-20-2013 |
20130168075 | SHEAR BLADE AND METHOD OF ATTACHMENT TO SHEAR RAMS - A shear blade attached to a ram block. At least one bolt passage is formed at an angle at the top of the ram block. A bolt passage is formed in the shear blade that corresponds with the bolt passage on the tam block. A bolt introduced into the bolt passage of the ram block and also the bolt passage in the shear blade attaches the shear blade to the ram block. By using this technique for attaching the shear blade to the ram block, surface area of a front face of the shear blade is not further reduced. Therefore, the strength of the shear blade is increased. | 07-04-2013 |
20130180701 | SYSTEM AND METHOD FOR ENHANCED WELLBORE PERFORATIONS - An apparatus for perforating a subterranean formation may include a casing, an energetic material, a liner, and an acid-generating material. The casing may have a slotted end configured to receive a detonator cord, and an open end. The energetic material may be disposed in the open end and in ballistic. The liner may enclose the open end, and the liner may include an acid-generating material that is configured to form an acid upon detonation of the explosive material. | 07-18-2013 |
20130206385 | MULTI-ELEMENT HYBRID PERFORATING APPARATUS - A perforating apparatus includes a carrier, explosive devices mounted to the carrier, energetic cells arranged among the explosive devices, and a sleeve to receive at least a portion of the carrier, where the sleeve is formed of an energetic material. | 08-15-2013 |
20130277040 | Milling Assembly - A milling assembly and methods for milling an opening for a lateral wellbore in a section of casing or in a cement liner. | 10-24-2013 |
20130327514 | Pressure-Activated Switch - A first end of a conductive spring is embedded in a wall of a large chamber of a piston housing. The spring is held in tension by a second end of the spring being pinned against a bead contact by a trigger pin. The diameter of the piston and a tensile breaking strength of the trigger pin are selected so that the trigger pin is breakable and the tension in the spring is releasable upon the presence of a predetermined pressure difference between a pressure on the contact side of the piston and a pressure on the pinning side of the piston. Release of tension in the spring closes an electrical circuit. | 12-12-2013 |
20140014315 | MODULAR DOWNHOLE TOOL - The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; an arm assembly pivotally mounted about a pivot point fixed in relation to the tool housing and movable between a retracted position and a projecting position in relation to the tool housing; an arm activation assembly for moving the arm assembly between the retracted position and the projecting position, the arm activation assembly being arranged inside the tool housing and having a first end face and a second end face adapted for being connected with the end faces of other arm activation assemblies; wherein the arm activation assembly comprises: a piston housing having a piston chamber extending in the longitudinal direction of the downhole tool and comprising: a first piston housing part, a second piston housing part removably connected to the first piston housing part, a piston member arranged inside the piston housing and connected with the arm assembly, the piston member being movable in the piston housing in the longitudinal direction of the downhole tool. | 01-16-2014 |
20140048245 | Replaceable Wear Plates for Use with Blind Shear Rams - A shear ram assembly including upper and lower ram blocks having blades positioned on opposing sides of pipe and other, more ductile items, and arranged to close around and shear the pipe and the more ductile items. The shear ram assembly includes pipe guide arms attached to the upper ram block and configured to guide pipe and other items into the path of the blades, and to be received by recesses in the lower ram block. Also included are wear plates mounted on top of the pipe guide arms and positioned to force the lower ram block to rise as the arms enter the recesses, thereby causing the gap between the blades to decrease so that the blades can better shear the more ductile items. | 02-20-2014 |
20140138078 | Tool and Method to Plug and Abandon Well | 05-22-2014 |
20140216712 | DOWNHOLE TOOL WITH EROSION RESISTANT LAYER - This disclosure is related to downhole tool having an erosion resistant material metallurgically bonded to portions of the downhole tool. The downhole tool can have the erosion resistant material can be disposed on predetermined portions of inner and outer surfaces of the downhole tool. The disclosure is also related to a method of using the downhole tool described herein. | 08-07-2014 |
20140216713 | DOWNHOLE TOOL WITH EROSION RESISTANT LAYER - This disclosure is related to downhole tool having an erosion resistant material metalurgically bonded to portions of the downhole tool. The downhole tool can have the erosion resistant material can be disposed on predetermined portions of inner and outer surfaces of the downhole tool. The disclosure is also related to a method of using the downhole tool described herein. | 08-07-2014 |
20150315865 | Slim Hole Pipe Cutting Apparatus - A pipe cutting apparatus for insertion through a slim hole into a deep well casing includes a cylindrical body member having a side wall defining open top and bottom ends and an interior area. The side wall defines a pair of slots. A pair of cutting members includes a first end coupled to the side wall adjacent one end of a respective slot and a second end extending into a respective slot. Each cutting member is inwardly biased through a slot into the interior area. The side wall includes a diameter smaller than a diameter of the well casing and larger than that of the tubing such that respective cutting members bear against the tubing when the body member is inserted into the deep well casing. A blade is coupled to each second end of respective cutting members and configured to cut the tubing when the body member is rotated. | 11-05-2015 |
20150322742 | Downhole severing tool - The pipe cutting capacity of an explosive pipe cutter may be improved by directing colliding shock fronts from opposite axial directions against a disc of metal having a shock impedance substantially corresponding to the shock impedance capacity of the explosive material. | 11-12-2015 |
20150361750 | HIGH POWER LASER IRIS CUTTERS - There are provided using deuterium oxide as a media for transmitting high power lasers to perform laser operations, such as cutting, boring and drilling, a target material. High power laser beams are transmitted through a deuterium oxide beam path to a target material, including material in a pressure containment vessel. | 12-17-2015 |
20160053592 | APPARATUS AND METHOD FOR ABRASIVE JET PERFORATING - There is provided a perforating tool comprising a housing, an inlet defined within the housing, a perforator fluid passage defined within the housing, and disposed in fluid communication with the inlet, and a nozzle, press-fit into the housing, and disposed in fluid communication with the perforator fluid passage. | 02-25-2016 |
20160108694 | COMPACT CUTTING SYSTEM AND METHOD - As compared to a BOP, a compact lightweight cutting system comprises two gates with cutters moveable in opposite directions to cut drill pipe. In one embodiment, the system comprises a relatively short stroke and utilizes relatively less hydraulic oil for subsea operation. In one embodiment, an opening through the gates surrounds the wellbore in the open position. The cutting elements are mounted within the openings. The piston rods and pistons are vertically offset with respect to each other. The compact cutting system with a gate valve can be used to substitute for a BOP to significantly reduce the size and weight required in an intervention system. | 04-21-2016 |
20190145214 | DUAL COMPACT CUTTING DEVICE INTERVENTION SYSTEM | 05-16-2019 |