Class / Patent application number | Description | Number of patent applications / Date published |
166350000 | Submerged, buoyant wellhead or riser | 55 |
20080196899 | Marine Riser Tower - The invention provides a marine riser apparatus ( | 08-21-2008 |
20080264644 | METHOD AND APPARATUS FOR CONNECTING DRILLING RISER STRINGS AND COMPOSITIONS THEREOF - In one embodiment, the present invention relates to a riser apparatus for use in offshore drilling for oil or other fossil fuels, the riser apparatus comprising: a plurality of riser sections coupled serially end-to-end, wherein each of the riser sections comprises: a tube having a first end and a second end; a first flanged that is mechanically joined to the first end of the tube; a second flanged that is mechanically joined to the second end of the tube; wherein the tube is constructed of an aluminum alloy; and wherein the flanges are constructed of the aluminum alloy; and wherein the riser apparatus has a length of approximately 1,500 meters or greater. | 10-30-2008 |
20080289829 | Floatation module and method - An apparatus for reducing the load applied to a rig. The rig is positioned over a well, with the well having a tubular string disposed therein. A landing string is connected to the tubular string such as casing, production and/or testing assemblies. The apparatus comprises a floatation module attached to the landing string and a clamp for clamping the floatation module onto the landing string. In one embodiment, the floatation module comprises a tubular sleeve having a buoyant material applied thereto. The tubular sleeve includes slots. The clamp may contain a set of dies adapted to engage the slots of the tubular sleeve. A method of landing a work string into a sub-sea well head from a floating drilling rig is also disclosed, wherein a marine riser connects the rig to the sub-sea well head. | 11-27-2008 |
20080302537 | Dimpled riser floatation module - An improved subsea riser for use in oil and gas drilling applications having a cylindrical floatation member adapted for attachment to a blow out preventer. The member may be configured with a plurality of generally evenly spaced dimples, indentations or protrusions about the circumference of the member to provide more streamlined water flow around the riser reducing turbulence and oscillations of the riser. The dimples, indentations or protrusions may be arranged in several ways including icosahedral, dodecahedral, octahedral and other polyhedral configurations. | 12-11-2008 |
20090044950 | Buoyancy tensioning systems for offshore marine risers and methods of use - Devices and methods for the enhanced assembly and disassembly of offshore marine risers through the use of a combination of passive and active buoyancy elements in a marine riser. Methods for assembling passive buoyancy joints comprise providing disc handling devices capable of simultaneously manipulating a plurality of buoyancy discs capable of nesting and interlocking with one another. The combination of passive and active buoyancy elements along with a near surface disconnect package allow for quicker upper riser recovery especially in the event of an approaching tropical storm. | 02-19-2009 |
20090095485 | Tube Buoyancy Can System - A tube buoyancy can system for tensioning a top tension riser. In some embodiments, the system includes a tubular can coupled to the top tension riser and a pressurized gas system configured to selectably inject pressurized gas into the tubular can. The tubular can includes an enclosed upper end having at least one closeable opening therethough, an open lower end configured to allow seawater to flow freely into and out of the tubular can, and an inner surface extending therebetween. The inner surface is devoid of structural obstructions which substantially inhibit the free flow of seawater through the lower end. When the opening is open, the tubular can is ballasted by seawater. When the opening is closed and pressurized gas is injected into the tubular can, the tubular can is de-ballasted of seawater. | 04-16-2009 |
20090101351 | Universal marine diverter converter - A universal marine diverter converter (UMDC) housing is clamped or latched to a rotating control device. The UMDC housing assembled with the RCD is inserted into a marine diverter above the water surface to allow conversion between conventional open and non-pressurized mud-return system drilling, and a closed and pressurized mud-return system used in managed pressure or underbalanced drilling. | 04-23-2009 |
20090126937 | Self-Standing Riser System Having Multiple Buoyancy Chambers - A multi-tiered self-standing riser system includes one or more intermediate buoyancy chambers configured to provide an upward lifting force on strings of associated riser assemblies. The intermediate chambers have either an open-bottomed or closed container design. The chambers can further include an auxiliary buoyant material designed to either mix with or contain pressurized fluids injected into the chambers. The self-standing riser system further includes a lower riser assembly affixed to a primary well-drilling fixture. The system also includes an upper riser assembly and one or more additional buoyancy chambers disposed in either direct or indirect communication with one another, as well as with drilling, production and exploration equipment as required by associated operations. | 05-21-2009 |
20090151956 | GREASE INJECTION SYSTEM FOR RISERLESS LIGHT WELL INTERVENTION - A subsea lubricator system is disclosed which includes a lubricator tube adapted to be positioned subsea above a subsea well, a pressure control head adapted to be positioned above the lubricator tube, at least one pressure sensor adapted for sensing at least one of a pressure in the subsea well or an ambient seawater pressure proximate the pressure control head, and at least one pump that is adapted to be positioned subsea to inject a lubricant into the pressure control head at a pressure that is greater than the sensed pressure. A method of operating a subsea lubricator system positioned above a subsea well, the lubricator system including a pressure control head, is also disclosed which includes monitoring at least one of a pressure within the well and an ambient seawater pressure proximate the lubricator system, and injecting a lubricant into the pressure control head at a pressure that is greater than the monitored pressure. | 06-18-2009 |
20090260831 | HIGH PRESSURE SLEEVE FOR DUAL BORE HP RISER - A high pressure sleeve for a dual bore high pressure riser is provided. The high pressure sleeve is arranged for forming a connection between either the annulus bore and the high pressure sleeve, or for forming a connection between the high pressure sleeve and the production bore. The choice of connection is made by rotation of the sleeve. | 10-22-2009 |
20100181074 | System for and Method of Restraining a Subsurface Exploration and Production System - A system for and method of limiting and controlling the unintended subsurface release of an exploration or production riser system is provided including one or more means for anchoring the riser or casing stack at one or more pre-determined points upon the length of the riser, and/or on the housing of an associated buoyancy chamber or the like, and/or on a particular portion of the riser as dictated by the operational environment, and/or on an anchor portion secured in the sea floor; and a network of restraining members disposed on the anchoring means. A lower anchoring portion includes one or more anchors disposed in communication with a wellhead, or with the sea floor or below the sea floor mud line, or with a well casing portion. A network of restraining members forms an essentially continuous connection from the buoyancy member portion to said bottom anchor portion. In a particular, though, non-limiting embodiment of the invention, a means for anchoring the system using pairs of anchors disposed at one or more predetermined points along the riser portion of the system is provided. Also disclosed is a variety of means and devices by which a surface vessel or a rig, etc., servicing a subsea well equipped with the present system may absorb or deflect impact forces originating from portions of the system that unexpectedly break free and rush upwards toward the surface vessel or rig. | 07-22-2010 |
20100186965 | METHOD FOR INSTALLING AN OFF-SHORE STRUCTURE - An off-shore structure is installed in a body of water. The body of water extends above a floor, such as a seabed, and has a water surface. A buoyant pontoon and a top structure are provided separately from each other. The top structure has a deck, a plurality of legs that are connected to the deck, and a jacking system for displacing the legs relative to the deck. The pontoon is submerged below the water surface. The submerged pontoon is connected to the floor with tendons. The top structure is aligned above the submerged pontoon connected to the floor. Then, the legs are jacked-down relative to the deck until the legs abut against the submerged pontoon connected to the floor. Subsequently, the jacked-down legs are attached to the submerged pontoon and the deck is jacked-up relative to the pontoon until the deck is standing above the water surface. A number of risers are installed for providing a fluid communication between the floor and the deck after jacking up the deck above the water surface. | 07-29-2010 |
20100243262 | Submarine Device - The invention discloses a subsea device comprising a can, a string of risers, a blowout preventer and a string of tie-back pipes. The blowout preventer is installed on the can. The top of risers is connected to a rig and its bottom is mounted on the blowout preventer. The upper of tie-back pipes is fixed to the can. The lower of tie-back pipes is mounted to a wellhead in the seabed by a subsea wellhead apparatus and connected to the casings for collecting oil/gas stored in formations by the subsea wellhead apparatus. A passage communicating the blowout preventer with tie-back pipe is jointed on the can. A pipeline, transporting oil/gas, mud and cuttings in drilling process, is divided into two sections, both tie-back pipes and casings, by the wellhead apparatus settled on seabed, thereby ensuring security of the rig in the drilling process and stronger operability of entire production system. | 09-30-2010 |
20100307762 | RISER FLOATATION WITH ANTI-VIBRATION STRAKES - A substantially cylindrical buoyancy module for a marine riser includes a plurality of buoyancy elements separated along at least one helical separation plane. | 12-09-2010 |
20110108281 | Method of providing buoyancy for a drilling riser - The method of providing flotation modules on subsea drilling riser joints comprising providing flotation modules as a full circle, installing said flotation modules sequentially onto the end of the central pipe of said drilling riser joints in a desired orientation, providing passageways through said flotation modules which extend from one end of said subsea drilling riser joints to the other end of said drilling riser joints. | 05-12-2011 |
20110114329 | APPARATUS AND METHOD FOR PROVIDING A CONTROLLABLE SUPPLY OF FLUID TO SUBSEA WELL EQUIPMENT - An apparatus and method for providing a controllable supply of fluid, and optionally power and/or communication signals, to a subsea equipment are provided. The fluid may be a water-based fluid, oil-based fluid, or chemicals. The apparatus includes a reservoir disposed on a seabed for storing a supply of fluid for delivery to the subsea well equipment. A subsea pumping device is configured to receive the fluid from the reservoir, pressurize the fluid, and deliver the pressurized fluid to an accumulator of a hydraulic power unit disposed on the seabed. The hydraulic power unit can store the pressurized fluid and control an output of the pressurized fluid to the subsea well equipment, thereby providing a subsea fluid source for the subsea equipment. | 05-19-2011 |
20110290499 | DEEPWATER COMPLETION INSTALLATION AND INTERVENTION SYSTEM - Methods and apparatus for installing deepwater completions and performing well intervention from a vessel that can perform other duties while not running completions or performing interventions. The system for installing deepwater completions and performing well intervention may comprise a surface pipe handling and deployment package including a horizontally operated rig that may also be operated in a slanted mode. Deepwater completions may be deployed from the vessel via a buoyant horizontal riser (BHR), which may be supported by a submerged buoyant tensioning system (BTS). In this manner, the cost of performing completion or intervention operations may be significantly reduced compared to such operations run from a drilling rig. | 12-01-2011 |
20110303416 | LOWER EMERGENCY MARINE RISER(LEMR) AND METHOD OF INSTALLATION PREVENTING CATASTROPHIC PRODUCT SPILLS - A specialized conduit | 12-15-2011 |
20120006557 | MADE-UP FLANGE LOCKING CAP - A cap is lowered onto and secured to a subsea member with an external flange, effecting a seal between the external flange and cap. The cap includes a tubular outer body defining a cavity, and a tubular inner body defining a bore, wherein the lower end of the inner body resides within the cavity. The cap also includes a lower engaging member coupled to the outer body that is radially movable between an inward state and an outward state and configured to alternately engage and disengage at least one of a backside of the external flange. Finally, the cap includes an upper engaging member coupled to the outer body and being radially movable independently of the lower engaging member between an inward state and an outward state and configured to engage and disengage the inner body. | 01-12-2012 |
20120055677 | ROTATING FLOW CONTROL DIVERTER WITH RISER PIPE ADAPTER - The present invention is directed a rotating flow control diverter having a riser adapter. The riser adapter allows the rotating flow control diverter to be positioned in a riser string below the drilling platform. The rotating flow control diverter has two flanged connections that connect to the flanged connections of riser pipe such that the rotating flow control diverter becomes an integral part of the riser string. The rotating flow control device has means to circulate lubricating fluid in the bearing assembly without the need for external feed lines. | 03-08-2012 |
20120061091 | Riser Lifecycle Management System, Program Product, and Related Methods - Methods, systems, and program product for monitoring and managing a plurality of marine riser assets are provided. An example of a method includes tracking the subsea deployment and retrieval of each of a plurality of riser joints. This can include deploying the plurality of riser joints from a vessel to form an operationally deployed marine riser string, reading riser joint identification data from a riser joint identification indicator connected to the respective riser joint during the operational deployment thereof, and identifying the respective riser joint being operationally deployed to thereby track the deployment thereof. The method can also include retrieving one or more of the operationally deployed riser joints, reading riser joint identification data from the riser identification indicator of the respective riser joint during retrieval thereof, identifying the respective one or more riser joints being retrieved to thereby track the retrieval thereof. | 03-15-2012 |
20120247782 | MARINE RISER ADJUSTABLE BUOYANCY MODULES - A marine riser includes one or more buoyancy modules running along a length of the marine riser, wherein the one or more buoyancy modules are molded such that an umbilical may be secured along a length of the one or more buoyancy modules. | 10-04-2012 |
20120298373 | ASSEMBLY FOR SUPPORTING AT LEAST ONE FLUID TRANSPORT PIPE THROUGH AN EXPANSE OF WATER, AND ASSOCIATED FACILITY AND METHOD - The disclosure relates to an assembly including a supporting buoy and an anchoring assembly ( | 11-29-2012 |
20120325487 | Systems and methods for stabilizing oilfield equipment - Systems and methods for stabilizing a riser or similar object against motion can include engaging two or more cylinder apparatus to the object. Communication of fluid between cylinder apparatus, responsive to a force on the object, can limit movement of the object, such as through extension or retraction of pistons within the cylinders. The cylinder apparatus can include internal channels that can accommodate coiled tubing, slickline, wireline, and similar conduits or devices, enabling operations to be performed through the cylinders, independent of their position. | 12-27-2012 |
20130087342 | RISER SYSTEM AND METHOD OF USE - A riser system and method including a bore submerged surface package of valves, a cross over assembly with a high pressure-low pressure connector connected to the bore submerged surface package of valves, a high pressure insert, and a telescoping flow tube. The riser system also include a high pressure bore subsea stack, a low pressure slip joint, a tension ring, a flex joint, a diverter, a mandrel capable of interfacing with the high pressure-low pressure connector, a high pressure mandrel crossover and at least one high pressure insert riser joint, a high pressure-low pressure latch, a telescoping flow tube telescopic conduit, at least one telescoping flow tube latch, a telescoping flow tube low pressure flex joint, a telescoping flow tube main housing, or a rotating control device. | 04-11-2013 |
20130092387 | Riser Lifecycle Management System, Computer Readable Medium and Program Code - Systems, computer readable medium, program code, and methods for monitoring and managing a plurality of marine riser assets are provided. An example of a system includes a computer and a computer readable medium containing a program code of instructions that when executed by the computer, cause the computer to perform operations for tracking the subsea deployment and retrieval of each of a plurality of riser joints. The operations can include receiving riser joint identification data from a riser joint identification indicator connected to the respective riser joint during the operational deployment thereof, and identifying the respective riser joint being operationally deployed to thereby track the deployment thereof. The operations can also include receiving riser joint identification data from the riser identification indicator of the respective riser joint during retrieval thereof, and identifying the respective one or more riser joints being retrieved to thereby track the retrieval thereof. | 04-18-2013 |
20130284448 | Lifting Device Having Hinged Segments - Lifting devices for use with drilling risers, where the lifting devices have a plurality of segments, some of which are hinged to facilitate handling and provide multiple shear points between the hinged segments. One embodiment comprises a lifting device for a drilling riser, where the device includes a collar and a lifting lug. The collar has a cylindrical ring with one or more annular ribs connected to corresponding circular edges of the ring. The lifting lug is connected to the collar and the ribs. The collar has a plurality of segments, and at least a first one of the segments is pivotally connected to another one of the segments by a hinge. Each rib may taper smoothly from a smaller thickness at a top edge of the rib to a greater thickness at a base of the rib. | 10-31-2013 |
20130292129 | SOLID OXIDE FUEL CELL SYSTEM - A riser assembly ( | 11-07-2013 |
20140041878 | Hybrid Riser System - A hybrid riser system comprises a lower riser section secured between a lower subsea anchor and an upper buoyant structure, and an upper riser section extending between the lower riser section and a surface or near surface vessel. The lower riser section comprises an elongate support and one or more composite fluid conduits secured to and extending adjacent the elongate support. The composite fluid conduits comprise a composite material formed of at least a matrix and one or more reinforcing elements embedded within the matrix. The upper riser section comprises one or more flexible conduits in fluid communication with the composite fluid conduits | 02-13-2014 |
20140041879 | Composite Component Deployment Configurations - A riser system ( | 02-13-2014 |
20140166296 | Self-Standing Riser System Having Multiple Buoyancy Chambers - A multi-tiered self-standing riser system includes one or more intermediate buoyancy chambers configured to provide an upward lifting force on strings of associated riser assemblies. The intermediate chambers have either an open-bottomed or closed container design. The chambers can further include an auxiliary buoyant material designed to either mix with or contain pressurized fluids injected into the chambers. The self-standing riser system further includes a lower riser assembly affixed to a primary well-drilling fixture. The system also includes an upper riser assembly and one or more additional buoyancy chambers disposed in either direct or indirect communication with one another, as well as with drilling, production and exploration equipment as required by associated operations. | 06-19-2014 |
20140174753 | SYSTEM AND METHOD FOR CONTROLLING THE PRESSURE IN A HYDROCARBON WELL | 06-26-2014 |
20140216751 | INTEGRATED MANAGED PRESSURE DRILLING RISER JOINT - An apparatus comprises a telescoping marine riser action and one of a rotating control device and an annular blow out preventer. The telescoping marine riser section comprises an inner barrel and an outer barrel. The one of a rotating control device and an annular blow out preventer is disposed inside the outer barrel | 08-07-2014 |
20140305655 | RISER TENSIONER CONDUCTOR FOR DRY-TREE SEMISUBMERSIBLE - A top-tensioned riser system comprises a substantially vertical riser extending upward from the seafloor; a conductor surrounding an upper portion of the riser in spaced-apart relation; a coaxial keel guide surrounding a lower portion of the conductor; a tensioner attached to the conductor and the riser; a keel guide support structure attached to the keel guide and connected to the keel of a dry-tree, semi-submersible vessel; and, a keel joint centralizer attached to the riser proximate the keel guide and sized to prevent radial movement of the riser relative to the conductor. Side loads on the riser (such as those arising from displacement of the vessel from its nominal position or currents acting on the riser) are reacted from the riser to the conductor via the keel joint centralizer and thence to the keel of the vessel via the keel guide. | 10-16-2014 |
20140326460 | BUOYANCY COMPENSATING ELEMENT AND METHOD - A buoyancy compensating element for connection to a flexible pipe and method of producing a buoyancy compensating element are disclosed for increasing or decreasing buoyancy of the portion of flexible pipe. The buoyancy compensating element includes a body portion; and a channel extending through the body portion for receiving a portion of flexible pipe, wherein the body portion and channel are configured such that when a portion of flexible pipe is received in the channel, the portion of pipe has increasing ability to flex towards an end of the channel. | 11-06-2014 |
20140326461 | BUOYANCY COMPENSATING ELEMENT AND METHOD - A buoyancy compensating element for connection to a flexible pipe and method of producing a buoyancy compensating element are disclosed. The buoyancy compensating element includes a first body portion and a further body portion, wherein the first and further body portion are configured to be connectable to each other and in use to encompass a portion of flexible pipe. | 11-06-2014 |
20150047852 | Installation Comprising Seabed-To-Surface Connections Of The Multi-Riser Hybrid Tower Type, Including Positive-Buoyancy Flexible Pipes - A bottom-to-surface connection installation having a floating support and a turret and having: a plurality of risers having their top ends secured to a carrier structure a plurality of flexible pipes extending from the turret to the top ends of the risers; the flexible pipes including at least two first flexible pipes with positive buoyancy positioned at different heights; and guide modules secured to a tension leg and suitable for sliding along floats of the risers. | 02-19-2015 |
20150053413 | METHOD OF PROVIDING BUOYANCY - A method of providing buoyancy, the method comprising the steps of: (a) adding a buoyant fluid to a container, the buoyant fluid comprising a base fluid, an activator and from 25 to 60% vol/vol microspheres; and (b) increasing the viscosity of the buoyant fluid to at least 80,000 mPa·s at a shear rate of 0.8 s | 02-26-2015 |
20150060079 | RISER ASSEMBLY AND METHOD - A riser assembly and method of supporting a flexible pipe are disclosed. The assembly includes a riser; at least one buoyancy compensating element attached to the riser for providing positive, negative or neutral buoyancy to the riser; and a tethering element connecting a first point of the riser with a further point of the riser so as to form a hog bend or a sag bend in the riser. | 03-05-2015 |
20150068759 | Clamp - The present Invention concerns a clamp ( | 03-12-2015 |
20150090460 | APPARATUS AND METHOD FOR PRODUCING OIL AND GAS USING BUOYANCY EFFECT - A system for bringing producing oil and gas from a subsea gathering manifold or wellhead, including a loop having an upper end at the surface and a lower end below the surface, the loop rotatable around a closed path, and production vessels attached to the cable loop, each production vessel having a hollow interior, the weight of the plurality of production vessels sufficient, when filled with seawater, to cause the production vessels to sink, the plurality of production vessels each having an inlet pipe. The system also includes a plurality of receivers attached to the production gathering manifold or wellhead that receive production fluid, the receivers engaging production vessels and filling them with well fluid while seawater is discharged from the production vessels, the production fluid having a lower density than ambient seawater so that the production vessels become buoyant when filled with the production fluid. | 04-02-2015 |
20150096760 | Modular Exploration and Production System Including an Extended Well Testing Service Vessel - A modular exploration and production system combined with an oil well testing and service vessel is provided, the vessel comprising equipment for separating hydrocarbons and/or associated fluids and solids by means of a processing plant. The vessel is equipped with suitable equipment packages for all required functionality, so fluid received from wells, piping and installations at sea or inland waters is processed for the separation, control and ecological handling of the mixture (crude oil, gas, solids, chemicals and oily or production water) in a plurality of phases such as exploration, drilling, finishing, repair, stimulation, production, and production measurement. In an extended combination of such technologies, a single well test service vessel is used in conjunction with a field of neighboring self-standing riser systems to serially test well and production processes, resulting in project-scaled synergies between drilling and testing assets that lead to cleaner, more cost-effective recovery of higher quality yields. | 04-09-2015 |
20150101819 | Jumper Support Arrangements for Hybrid Riser Towers - A hybrid riser tower is disclosed with a rigid riser column and a buoyancy tank positioned to apply tension to the riser column by buoyant upthrust when the tower is in an upright orientation for use. At least one jumper support structure is attached to a side of the buoyancy tank between upper and lower ends of the buoyancy tank when the tower is oriented for use. At least one riser connection extends outside the buoyancy tank from a riser pipe of the riser column to the jumper support structure, where it connects to a flexible end fitting carried by the jumper support structure. The riser connection splays laterally moving from the riser pipe toward the jumper support structure. | 04-16-2015 |
20150144350 | RISER ASSEMBLY AND METHOD - A riser assembly and method of providing a riser assembly for transporting production fluids from a location deep under water are disclosed. The riser assembly includes a riser comprising a flexible pipe, the riser having a hang off point which is an end of the riser that in use connects with a floating facility, and a touchdown zone which in use is a section of the riser in the region of where the riser meets the seabed or other fixed structure; and at least one buoyancy element arranged at the touchdown zone or within about 50 m of the touchdown zone of the riser to support the riser in a configuration for accommodating kinetic energy propagating along the riser from the hang off point. | 05-28-2015 |
20150144351 | FLEXIBLE PIPE AND A METHOD FOR PROVIDING BUOYANCY TO A JUMPER OR RISER ASSEMBLY - A riser or jumper assembly for transporting production, exportation or injection fluids is disclosed as is a method for providing buoyancy to such an assembly. The riser or jumper assembly includes a first segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting, a further segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting and an intermediate segment of flexible pipe comprising a portion of flexible pipe body and a first and second end fitting and at least one buoyancy element. | 05-28-2015 |
20150300102 | MULTI CAPACITY RISER TENSIONERS - A hydraulic cylinder unit for connection to a wire line riser tensioner system includes a hydraulic cylinder comprising a cylinder piston separating a first cylinder chamber from a second cylinder chamber. A low pressure tank is arranged as a closed cylinder. A first conduit is inserted into the closed cylinder and provides a fluid communication between the low pressure tank and the first cylinder chamber. A second conduit provides a fluid communication between a high pressure fluid reservoir and the second cylinder chamber. A feedback conduit provides a fluid communication between the first cylinder chamber and the second cylinder chamber. A valve element comprising at least one valve is configured to be in a fluid communication with the at least one first conduit and the at least one feedback conduit. The valve element is configured to provide a reversible switching between a first alternative configuration and a second alternative configuration. | 10-22-2015 |
20150330160 | Floating Structure and Riser Systems for Drilling and Production - An offshore well system for a subsea well, including a floating platform, a drilling riser system connected with the well for drilling operations, and a production riser system connected with the well for production operations. The drilling system also includes a riser tension system. The riser tension system is capable of compensating for movement of the platform while adequately tensioning both drilling riser system and the production riser system when each is connected to the well. | 11-19-2015 |
20150376989 | SUBSEA ON-SITE CHEMICAL INJECTION MANAGEMENT SYSTEM - A system includes a subsea on-site chemical injection management system configured to inject a chemical mixture into a well, wherein the subsea on-site chemical injection management system includes a subsea on-site head tank configured to store a plurality of discrete chemicals, a subsea on-site mixing unit configured to mix one or more of the plurality of discrete chemicals to create one or more chemical mixtures, and a subsea on-site distribution unit configured to distribute the one or more chemical mixtures to the well. | 12-31-2015 |
20160032661 | Adjustable Conduit - An apparatus includes a fluid conduit including a plurality of segments having a substantially flexible segment. The substantially flexible segment has substantially concentric inner and outer sidewalls and includes an adjustable pressure device configured to vary an internal annular pressure of the substantially flexible segment to counteract external pressure from a surrounding environment. | 02-04-2016 |
20160123131 | DEEPWATER LOW-RATE APPRAISAL PRODUCTION SYSTEMS - A method for appraising a deepwater well comprising: producing a first quantity of hydrocarbon from an undersea reservoir; transporting the first quantity of hydrocarbon to a floating vessel; off loading the first quantity of hydrocarbon from the vessel; producing a second quantity of hydrocarbon from the undersea reservoir; and transporting the second quantity of hydrocarbon to the floating vessel. | 05-05-2016 |
20160145948 | MARINE DRILLING RISER PROTECTION SYSTEM - A marine drilling riser protection system including a plurality of protection modules adapted for fitment at spaced intervals along the length of a riser, and a plurality of cover parts, wherein each cover part is adapted to be fitted at one end of the cover part to a first protection module, and at an opposite end of the cover part to a second protection module. | 05-26-2016 |
20160153247 | DEEPWATER DISCONNECTABLE TURRET SYSTEM WITH IMPROVED RISER CONFIGURATION | 06-02-2016 |
20160168921 | RISER SUPPORT | 06-16-2016 |
20160177633 | RISER ASSEMBLY AND METHOD OF FORMING A RISER ASSEMBLY | 06-23-2016 |
20160251911 | DRILLING RISER WITH DISTRIBUTED BUOYANCY | 09-01-2016 |