| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166339000 | With provision for removal or repositioning of member without removal of other well structure | 50 |
| 20080277122 | Apparatus and a Method For Deployment of a Well Intervention Tool String Into a Subsea Well - The present invention regards an apparatus and a method for subsea deployment and/or intervention through a wellhead ( | 11-13-2008 |
| 20080302535 | Subsea Intervention Riser System - The invention comprises a multi-component system for subsea intervention. The system comprises a lower riser component which is held vertical by a buoyance element and an upper riser system. The upper riser system is a continuous, enjoined conduit with sufficient flexibility to absorb the motion of the deployment vessel without adversely affecting the function of the intervention system. | 12-11-2008 |
| 20090050329 | SUBSEA ADAPTER FOR CONNECTING A RISER TO A SUBSEA TREE - A method and system for performing intervention and workover operations on a subsea well are provided, as well as an adapter for connecting a lower end portion of a conduit extending from a vessel with an upper portion of a lower marine riser package associated with a subsea tree. The method includes providing a lower marine riser package connected to an upper portion of a subsea tree associated with a subsea well, and a conduit extending from a vessel toward the lower marine riser package. The conduit is connected to the lower marine riser package with an adapter. A portion of a conduit bore of the conduit above the adapter is sealed from a chamber in the adapter, and a portion of a bore extending through the lower marine riser package is sealed from the chamber. The adapter is opened for access to the chamber from the sea. | 02-26-2009 |
| 20090194290 | CONTROL SYSTEM FOR BLOWOUT PREVENTER STACK - A modular control system consisting of multiple, remotely retrievable functional modules for controlling a blowout preventer stack. The various functional modules can be located on the lower marine riser package and blowout preventer stack positioned near the equipment with which they are associated, wherein this distribution of modules nearly eliminates the complex interface connection between the lower marine riser package and blowout preventer stack. Each of the functional modules is capable of being installed, retrieved or replaced with a single remotely operated vehicle (ROV) deployment from a vessel. The functional modules can be used to operate as a complete control system for a blowout preventer stack or can be used selectively individually or in various combinations to accommodate multiple control applications or upgrades of other control systems. | 08-06-2009 |
| 20090211760 | Well servicing tool storage system for subsea well intervention - A well servicing tool storage system for subsea well intervention is disclosed which provides a tool storage means as part of the intervention system and which has a plurality of tool storage arms deployed around the tool storage means. Each arm has a clamp capable of clamping a tool, and moving the clamped tool between a stored position near the perimeter of the tool storage means, and a deployed position in the centre of the tool storage means where the tool can be made up into a wireline connection. | 08-27-2009 |
| 20090236100 | PLUG RETRIEVAL AND DEBRIS REMOVAL TOOL - An apparatus adapted for removing a plug ( | 09-24-2009 |
| 20090255680 | Subsea Inflatable Bridge Plug Inflation System - A remotely operated submersible vehicle (ROV) is used to carry a bridge plug down to a sub sea well. The ROV is operated from a surface vessel or platform and is outfitted with a submersible hydraulic pump and a manipulator arm. Additionally, the ROV is provided with a carrying rack which can support a well closure assembly made up of an inflatable bridge plug and an affixed hydraulic running tool. The bridge plug and running tool are placed into the carrying rack and operably interconnected with the hydraulic pump so that the plug element can be selectively inflated by the pump. | 10-15-2009 |
| 20090260830 | RIGLESS WELL COMPLETION METHOD - A method and system for completing a well below the bottom of a body of water includes assembling a completion string at a location away from a location of the wellbore, moving the assembled completion string to the location of the wellbore and inserting the assembled completion string into the wellbore. | 10-22-2009 |
| 20090266552 | Apparatus and Method for Removing Subsea Structures - An apparatus and method for removing a subsea structure wherein a housing defining a subsea structure receiving space and having a jetting system attached at or near the bottom of the housing is used to form an excavation around the subsea structure to the desired depth and a frame attached to or mounted in the housing carries a cutter assembly which is movable from a first position on the frame to a second position on the frame, the first position being on one side of the subsea structure, the second position being on the opposite side of the subsea structure. | 10-29-2009 |
| 20090283274 | CONNECTOR ASSEMBLY FOR CONNECTING A HOT STAB TO A HYDRAULIC HOSE - An apparatus having a hot stab having a fluid conduit connector thereon, a hydraulic hose having a connector assembly at an end thereof suitable for joining to the fluid conduit connector of the hot stab, and a sleeve affixed to the hot stab and to the hydraulic hose so as to extend over and surround the fluid conduit connector and the connector assembly. A jam nut is affixed to the tubular portion of the fluid conduit connector. The sleeve is threadedly connected to the threaded exterior surface of the jam nut. A crimp fitting is secured to an end of the hydraulic hose. A hose swivel extends around a crimp fitting and is affixed around the fluid conduit connector of the hot stab. | 11-19-2009 |
| 20100025043 | SYSTEM AND VESSEL FOR HYDROCARBON PRODUCTION AND METHOD FOR INTERVENTION ON SUBSEA EQUIPMENT - A system for operation and service of at least one hydrocarbon-producing well and of equipment, which is disposed under water, for further transport of the well stream, where the system comprises at least one pipeline, at least one booster unit, a vessel comprising an anchoring system about which the vessel can rotate or swivel, means for conducting an intervention on subsea equipment, means for communication with and control of the at least one well and other equipment, means for injecting chemicals into the well streams, means for transferring to and inserting pigs in the pipeline, means for production of energy for operation of subsea equipment, means for transferring energy from the means for production of energy to the booster unit and any other subsea equipment. | 02-04-2010 |
| 20100101799 | SYSTEM, METHOD AND APPARATUS FOR A MODULAR PRODUCTION TREE ASSEMBLY TO REDUCE WEIGHT DURING TRANSFER OF TREE TO RIG - A modular tree production tree assembly reduces the weight during transfer of the tree components from a barge to a production rig. The tree assembly includes an upper tree module, a lower tree module, and a choke bridge module. The upper tree module has a tree head, the lower tree module has a guidance system and ties in the flow lines to the in-field infrastructure, and the choke bridge module has the choke and instrumentation bridge to link the three components together. Prior to delivery to the rig, the components of the modular tree assembly may be joined together and tested on shore. Upon arrival at the rig, the components are individually lifted from the barge onto the rig by a crane. After the tree components are on the rig, the modular tree is reassembled and then deployed to the sea floor via the draw works. | 04-29-2010 |
| 20100147527 | SUBSEA BOOSTING CAP SYSTEM - A subsea boosting cap system is disclosed. The system comprises an anchor assembly capable of attaching to the sea floor. The anchor assembly comprises a pump cavity capable of receiving a removable pump assembly. A valve system is attached to the anchor assembly. The valve system comprises an inlet flow path and an outlet flow path. A boosting cap covers the pump cavity. The boosting cap comprises a first flow path configured to provide fluid communication between the inlet flow path and the removable pump assembly. A second flow path provides fluid communication between the removable pump assembly and the outlet. A crossover flow path provides fluid communication between the inlet flow path and the outlet flow path, the crossover flow path bypassing the pump cavity. | 06-17-2010 |
| 20100230110 | WELL UNLOADING PACKAGE - A method of unloading a well using a modular adapter having a pump, a pump suction line, and a pump discharge line. The adapter is connected to a subsea wellhead assembly so that the pump suction line communicates with a main bore in the wellhead assembly and the pump discharge line communicates with a production line attached to the wellhead assembly. The production line is isolated from the main bore and the pump draws fluid from within the well and discharges it into the production line. After unloading the well, the adapter can be removed and moved to another location for well unloading. | 09-16-2010 |
| 20100236785 | METHOD FOR REMOVING HYDRATE PLUG FROM A FLOWLINE - A method of drilling through a blockage in a flowline using a remotely controlled electrically operated drilling tool that comprises a drill bit, a steering means, a pumping means, and a propulsion system wherein the drilling tool is connected either directly or indirectly to an electric cable and the drill bit is mounted on the steering means, the method comprising: introducing the drilling tool into the flowline; actuating the electrically operated propulsion system to move the drilling tool through the flowline to the location of the blockage; actuating the electrically operated steering means so that the drill bit is aligned with the blockage; actuating the electrically operated drill bit so that the drill bit engages with and drills through the blockage; and actuating the electrically operated pump so that when the drill bit engages with the blockage, fluid that is present in the flowline adjacent the blockage is passed over the cutting surfaces of the drill bit and cuttings from the blockage are transported away from the cutting surfaces of the drill bit suspended in the fluid. | 09-23-2010 |
| 20100307760 | SUBSEA WIRELINE INTERVENTION SYSTEM - The present invention is a system for subsea well intervention on a vessel with a boom above a well tree. The system includes a subsea deployment reel, a subsea wireline reel, and an intervention tool. The deployment reel has a deployment wireline with an integrated wire rope tether, a grooved drum, a drum motor means, and a control unit. One end of the deployment reel is fixedly attached to a launch and recovery system on the boom of the vessel, and other end of the deployment reel is attached to the wireline reel. The reels and tool lower into the water from the boom for a set depth above the tree. The subsea wireline reel has deployment wireline, a wireline drum, a wireline drum motor means, and a wireline control unit. The wireline reel detaches downward from the deployment reel, after the two reels have stopped lowering. Then, the intervention tool is delivered a final distance to engage the subsea tree. | 12-09-2010 |
| 20100307761 | Subsea Control Module with Interchangeable Segments - A subsea control module for subsea well equipment has an actuator having a rod with a remote operated vehicle (ROV) interface on one end and a latch on an opposite end that latches to a subsea receptacle. Segments are releasably mounted around and to the actuator. Each of the segments has a sealed housing containing at least one internal control component. Couplings depend from the housing for engaging mating couplings in the receptacle. The housing has two radial walls, each extending along a radial line from an axis of the rod. An outer wall joins outer ends of the radial walls, the outer wall being a portion of a cylinder. An inner wall joins inner edges of the radial walls. The radial walls of adjacent ones of the segments abut each other. | 12-09-2010 |
| 20100326665 | METHODS AND APPARATUS FOR SUBSEA WELL INTERVENTION AND SUBSEA WELLHEAD RETRIEVAL - The present invention generally relates to methods and apparatus for subsea well intervention operations, including retrieval of a wellhead from a subsea well. In one aspect, a method of performing an operation in a subsea well is provided. The method comprising the step of positioning a tool proximate a subsea wellhead. The tool has at least one grip member and the tool is attached to a downhole assembly. The method also comprising the step of clamping the tool to the subsea wellhead by moving the at least one grip member into engagement with a profile on the subsea wellhead. The method further comprising the step of applying an upward force to the tool thereby enhancing the grip between the grip member and the profile on the subsea wellhead. Additionally, the method comprising the step of performing the operation in the subsea well by utilizing the downhole assembly. In another aspect, an apparatus for use in a subsea well is provided. In a further aspect, a method of cutting a casing string in a subsea well is provided. | 12-30-2010 |
| 20110017465 | RISER SUPPORT - A riser system including: at least one riser for extending from infrastructure on a sea bed and each riser having a riser termination; an end support restrained above and relative to the sea bed and having attachment means to couple each riser termination for storage and decouple each riser termination for coupling to a floating vessel; and an intermediate support supporting an intermediate portion of the riser to define a catenary bend between the intermediate support and the riser termination device. | 01-27-2011 |
| 20110048726 | INTERNAL TREE CAP AND ITC RUNNING TOOL - Internal tree cap ( | 03-03-2011 |
| 20110209875 | INSTALLATION FOR THE EXTRACTION OF FLUID FROM AN EXPANSE OF WATER, AND ASSOCIATED METHOD - This installation comprises an upper structure (12), and a flexible hose (16) capable of moving through the expanse of water (11 B) between an upper connected configuration and a lower disconnected configuration. The installation comprises a lower structure (14) having a base (60) extending at a distance from the bottom (11A) of the expanse of water (11 B). The upper structure (12) is capable of moving relative to the lower structure (14) between an extraction position and an evacuation position. The base (60) defines a passage (68) for travel of the flexible hose (16) as it moves between the upper connected configuration and the lower disconnected configuration and a stop (74) for retaining a connection head (92) of the hose (14), disposed in the travel passage (68), to keep the connection head (92) at a distance from the bottom (11A) of the expanse of water (11 B) in the lower disconnected configuration. | 09-01-2011 |
| 20110240303 | SUBSEA WELL INTERVENTION MODULE - Subsea well intervention module for well intervention operations to be performed in a well from a surface vessel via a wireline. The intervention module comprises a supporting structure, an attachment means for removably attaching the supporting structure to a structure of a well head or an additional structure, a well manipulation assembly, a navigation means having at least one propulsion unit for manoeuvring the module in the water, and a control system for controlling the intervention operations. The invention also relates to an intervention system and an intervention method. | 10-06-2011 |
| 20110266002 | Subsea Control Module with Removable Section - A subsea device is configured to control a subsea well. The subsea device includes a frame, a blowout preventer connected to the frame and configured to close a bore that fluidly communicates with the subsea well, a pressure supply line connected to the frame and configured to provide a fluid under high pressure, and a control module connected to the frame and configured to receive the fluid from the pressure supply line. The control module includes a fixed part and a removable section. The fixed part has a valve manifold that houses a hydraulic activated valve. The removable section is configured to detachably attach to the fixed part and includes an electrically activated valve. The hydraulic activated valve of the fixed part are configured to be actuated by the electrically activated valve when the removable section is mated to the fixed part. | 11-03-2011 |
| 20120085543 | Backup Wellhead Blowout Prevention System and Method - A backup blowout assembly for a subsea wellhead that is positioned between an existing blowout preventer system and the wellhead. The backup blowout assembly includes an independently operated shear/blind ram assembly that attaches to a standard wellhead connector that connects to the wellhead. The ram assembly includes an upper neck with an upper flange on which a dual housing assembly is attached. The dual housing assembly includes a primary housing longitudinally aligned over a secondary housing. The primary and second housings include lower bodies and upper necks that have identical diameters. During assembly, the existing primary blowout assembly is initially connected to the primary housing and the ram assembly is connected to the wellhead connector. When a blowout occurs, the primary housing may be disconnected from the secondary housing to expose the upper neck of the secondary housing upon which a replacement primary blowout assembly system or cap may be attached. | 04-12-2012 |
| 20120125622 | WELLSITE EQUIPMENT REPLACEMENT SYSTEM AND METHOD FOR USING SAME - A system and method for replacing equipment at a wellsite is provided. The wellsite has a subsea stripper installed proximate a subsea borehole. The system has a conveyance for delivering a BHA into the subsea borehole. The system has a subsea stripper having a central bore for passing the conveyance and the BHA therethrough, and at least one actuator connected to the subsea stripper for actuating a packer whereby the wellbore is sealed. The system has at least one replaceable seal assembly for installation within the stripper. The replaceable seal assembly has at least one packer extendable within the subsea stripper to form a seal thereabout and at least one locator sleeve for positioning the seal assembly in an install position within the subsea stripper. The replaceable seal assembly has a frangible member for connecting the seal assembly to the conveyance prior to deployment in the subsea stripper. | 05-24-2012 |
| 20120152557 | Devices and Methods for Locally Replacing Seal Surface - Devices and methods useable for repairing seal surfaces in an oil and gas installation used at offshore locations are provided. A removable device useable for locally repair a seal surface of a receiver plate, includes a rigid portion and a seal. The rigid portion is made of a material substantially similar to a material of the receiver plate, and is configured to be removably inserted in a fluid port of the receiver plate, having a seal surface flushed with the seal surface of the receiver plate when the device is inserted in the fluid port, and a channel configured to allow a fluid communication. The seal is made of a rubber-like material and is placed outside the rigid portion, the seal being configured to prevent a fluid leak. | 06-21-2012 |
| 20120181038 | SUBSEA WINCH - A subsea winch is described. The subsea winch comprises a housing adapted to be attached to a well intervention system, the housing having an inlet and an outlet and at least one powered sheave arranged between the inlet and the outlet, the or each powered sheave having a surface adapted to form a frictional engagement with a cable passing between the inlet and the outlet via the at least one sheave. In use, a pull force pulling the cable in a downhole direction applied to the cable by a tool string being lowered into the well intervention system is increased by the winch such that the downhole pull force on the cable at the housing inlet is greater than the downhole pull force at the housing outlet. | 07-19-2012 |
| 20120227974 | METHOD AND APPARATUS FOR PULLING A CROWN PLUS - Provided is a method and apparatus for pulling a crown plug comprising: (a) providing a subsea lubricator having a longitudinal through bore and a jack attached to the subsea lubricator, the jack having a landing area; (b) providing a jacking string which includes a landing sub and a crown plug connector, the sub having a landing surface; (c) without the jacking string in step “b”, lowering the subsea lubricator of step “a”, to the horizontal christmas tree and attaching the lubricator to the christmas tree; (d) lowering the jacking string to the lubricator; (e) jacking up the jack such that the landing area of the jack contacts the landing surface of the landing sub; and; (f) while the lubricator remains attached to the christmas tree, raising the jacking string and crown plug through and out of the lubricator. | 09-13-2012 |
| 20120255736 | OFFSHORE TOP TENSIONED RISER BUOYANCY CAN SYSTEM AND METHODS OF FIELD DEVELOPMENT - A method for developing an offshore field comprises (a) coupling a plurality of top-tensioned risers to a first vessel at a first location. In addition, the method comprises (b) decoupling the first vessel from the plurality of top-tensioned risers after (a). Further, the method comprises (c) coupling a second vessel to the plurality of top-tensioned risers after (b) at the first location. | 10-11-2012 |
| 20130020086 | SYSTEMS AND METHODS FOR CAPPING A SUBSEA WELL - A method for capping a subsea wellbore comprises (a) identifying a subsea landing site on the BOP or LMRP for connection of a capping stack. In addition, the method comprises (b) preparing the subsea landing site for connection of the capping stack. Further, the method comprises (c) installing a capping stack on to the subsea landing site. Still further, the method comprises (d) shutting in the wellbore with the capping stack after (c). | 01-24-2013 |
| 20130032351 | RELEASABLE CONNECTIONS FOR SUBSEA FLEXIBLE JOINTS AND SERVICE LINES - A method for shutting in a subsea wellbore is described, comprising disconnecting a flexible joint from the lower marine riser package subsea after a subsea blowout. The flexible joint is releasably connected to the lower marine riser package with a first connection comprising a connector with a receptacle and a hub seated in the receptacle. The method further comprises positioning a containment cap subsea proximate to the lower marine riser package. In addition, the method comprises connecting the containment cap to the lower marine riser package. The containment cap is releasably connected to the lower marine riser package with a second connection comprising a connector with a receptacle and a hub seated in the receptacle. Furthermore, the method comprises substantially shutting in the wellbore with the containment cap. | 02-07-2013 |
| 20130075103 | METHOD AND SYSTEM FOR PERFORMING AN ELECTRICALLY OPERATED FUNCTION WITH A RUNNING TOOL IN A SUBSEA WELLHEAD - A subsea running tool receives electric potential from a control unit located at a platform through a tubular string having an electrically conductive wire formed in tubular wall of the tubular string. The running tool provides at least one electrically operated function for setting a subsea wellhead component. The running tool is then run on the tubular string from a surface platform to a location within a wellhead. Electric potential is then supplied to the electrically conductive wire by a control unit at the platform to operate the electrically operated function of the running tool to set the subsea wellhead component. | 03-28-2013 |
| 20130213660 | ROV Retrievable Regulator Module - A retrievable module assembly can be used to install and/or de-install a blowout preventer (BOP) module from a BOP subsea where the BOP comprises one or more corresponding BOP module receivers. The retrievable module assembly typically comprises a frame configured to house and support the subsea BOP module; and a modular storage unit disposed at least partially within the frame. The modular storage unit further comprises a storage area configured to removably accept the subsea BOP module; a rotator configured to attach to and rotate the subsea BOP module, the rotator disposed at least partially within the frame; a rotator mover, slidably mounted in the frame and operatively in communication with the rotator; and a power connector operatively connected to the rotator and rotator mover and configured to interface with a power source. | 08-22-2013 |
| 20130292127 | PLUG INSTALLATION SYSTEM AND METHOD - A system for maneuvering a plug in and out of a tubing hanger mounts to a subsea wellhead assembly. The system includes a tractor and an end effector that are sheltered in a housing. A control cable spools from a reel mounted on the housing and attaches to the tractor. The control cable provides communication from a remotely operated vehicle (ROV) to the tractor and end effector so that commands from the ROV via the control cable control the tractor and end effector. After the housing connects to the wellhead assembly, control signals from the ROV activate the tractor to drive the end effector into the wellhead assembly and command the end effector to set the plug in the tubing hanger, or to remove the plug from the tubing hanger. | 11-07-2013 |
| 20140027123 | INTERVENTION WORKOVER CONTROL SYSTEMS - An apparatus for use in providing an intervention workover control system for an underwater well, comprising a first structure for connecting to a hydraulic flying lead, a first support for supporting at least one electrical flying lead, a second support for supporting the hydraulic flying lead, a second structure, a third structure, and a third support for supporting the at least one electrical flying lead, the second and third structures can be connected to respective ones of opposite sides of the first structure. The structures are configured to provide an intervention workover control system of a first configuration, wherein the first structure is usable with the second and third structures connected to the first structure, and to provide an intervention workover control system of a second configuration, wherein the first structure is usable without the second and third structures connected to the first structure. | 01-30-2014 |
| 20140048275 | Modular, Distributed, ROV Retrievable Subsea Control System, Associated Deepwater Subsea Blowout Preventer Stack Configuration, and Methods of Use - A distributed function control module adapted for use in a modular blowout preventer (BOP) stack for use subsea comprises a housing adapted to be manipulated by a remotely operated vehicle (ROV) with a stab portion adapted to be received into a BOP stack control module receiver. Control electronics, adapted to control a predetermined function with respect to the BOP stack, are disposed within the housing and connected to one or more controllable devices by a wet mateable connector interface. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of meaning of the claims. | 02-20-2014 |
| 20140076574 | METHOD AND SYSTEM FOR INSTALLING SUBSEA WELL TREES - The disclosure provides a method and system of installing subsea well trees, comprising: creating a glory hole having a depth below a seabed at a well location of a hydrocarbon reservoir; moving a floating offshore platform coupled with a foundation, the platform having a topsides and a caisson with downwardly extending walls defining an inner volume between the walls, the foundation coupled to the caisson walls, and the caisson walls having adjustable buoyancy; lowering the offshore platform with the foundation into the glory hole; drilling from the topsides into the hydrocarbon reservoir below the foundation to create a well; installing a well tree on the well, the well tree being disposed in the glory hole below the height of the seabed; coupling the well tree to a flow line; releasing the offshore platform from the foundation; and reusing the offshore platform to install other foundations at other predetermined well locations. | 03-20-2014 |
| 20140318800 | HYDROSTATIC TUBULAR LIFTING SYSTEM - In one embodiment, a tubular lifting system for lifting a wellbore tubular includes an outer tubular; an inner tubular disposed in the outer tubular; an annular chamber defined between the inner tubular and the outer tubular; and a tubular piston selectively movable in the annular chamber, wherein the wellbore tubular is connected to the tubular piston and movable thereby. | 10-30-2014 |
| 20140360730 | DOWNHOLE SWIVEL APPARATUS AND METHOD - What is provided is a method and apparatus which can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections and allowing the fluid to be displaced in two stages, such as while the drill string is being rotated and/or reciprocated. In one embodiment the sleeve can be rotatably and sealably connected to a mandrel. The swivel can be incorporated into a drill or well string and enabling string sections both above and below the sleeve to be rotated in relation to the sleeve. In one embodiment the drill or well string does not move in a longitudinal direction relative to the swivel. In one embodiment, the drill or well string does move longitudinally relative to the sleeve of the swivel. | 12-11-2014 |
| 20150083431 | Recovery Valve - A tubing hanger landing system includes a tubing hanger running tool, a locking flowline to lock the tubing hanger running tool into a tubing hanger, and a lower body shear joint comprising a recovery valve. The recovery valve includes a valve body with a functional port, an operational port, a bi-directional port, and a relief port, and a valve piston positioned within the valve body and movable between an operational position and a relief position within the valve body. The functional port enables pressure to be communicated to the valve piston to move the valve piston from the operational position to the relief position, and, in the relief position, the valve piston provides fluid communication through a relief flowpath between the bi-directional port and the relief port to release pressure from the locking flowline. | 03-26-2015 |
| 20150107845 | REDEPLOYABLE SUBSEA MANIFOLD-RISER SYSTEM - A subsea manifold-riser system is redeployed from a first production location to a second production location. A manifold module is lowered to the ocean floor at the first production location using a marine riser as a running tool by adding threaded pipe sections to the upper end of the marine riser. The manifold module is raised from the ocean floor at the first production location for redeployment at the second production location using the marine riser as a retrieval tool by removing threaded pipe sections from the upper end of the marine riser. | 04-23-2015 |
| 20150107846 | METHOD AND APPARATUS FOR PULLING A CROWN PLUG - Provided is a method and apparatus for pulling a crown plug from a subsea horizontal christmas tree, the method comprising: (a) providing a subsea lubricator having a longitudinal through bore and a jack attached to the subsea lubricator, the jack having a landing area, and the landing area having an opening which is fluidly connected to the lubricator's through bore; (b) providing a jacking string which includes a landing sub and a crown plug connector, the sub having a landing surface; (c) without the jacking string in step “b”, lowering the subsea lubricator of step “a”, to the horizontal christmas tree and attaching the lubricator to the christmas tree; (d) lowering the jacking string to the lubricator, and, while the landing surface of the landing sub is spaced above and not supported by the landing area of the jack, connecting the plug connector to the crown plug while the landing sub is above and not touching the landing area of the jack; (e) jacking up the jack such that the landing area of the jack contacts the landing surface of the landing sub, and pushes up on the jacking sub and jacking string causing tensile forces to be placed on the crown plug and releasing the crown plug from the profile of the christmas tree; (f) while the lubricator remains attached to the christmas tree, raising the jacking string and crown plug through and out of the lubricator and to the surface of the water to remove the tree; and (g) detaching the crown plug from the crown plug connector. | 04-23-2015 |
| 20150114656 | RISER DISPLACEMENT AND CLEANING SYSTEMS AND METHODS OF USE - Disclosed are systems and methods of effectively wiping and displacing a deep water riser prior to disconnection from a blowout preventer. An exemplary riser displacement system includes a mandrel coupled to a work string, a seal containment canister arranged about at least a portion of the mandrel, and a seal assembly movable between an un-deployed configuration, where the seal assembly is arranged within the seal containment canister, and a deployed configuration, where the seal assembly is arranged outside of the seal containment canister, the seal assembly including a sleeve movably arranged about the mandrel and one or more sealing elements disposed at a distal end of the sleeve. | 04-30-2015 |
| 20150122501 | SUBSEA PIPE CUTTING APPARATUSES AND RELATED METHODS - Some embodiments of the present subsea pipe cutting apparatuses use or include a frame, one or more water jet nozzles coupled to the frame and configured to apply pressurized fluid to a pipe to cut the pipe, and one or more of: a flange configured to secure the subsea pipe cutting apparatus relative to a blowout preventer stack, one or more water jet nozzles coupled to a rotating portion of the frame and configured to rotate about the pipe, one or more water jet nozzles movable between a retracted state and a deployed state in which the one or more water jet nozzles are radially closer to the pipe than when in the retracted state, one or more water jet nozzles pivotally coupled to the frame and configured to pivot while applying pressurized fluid to a surface of the pipe, and two or more water jet nozzles. | 05-07-2015 |
| 20150315879 | METHODS FOR RETRIEVAL AND REPLACEMENT OF SUBSEA PRODUCTION AND PROCESSING EQUIPMENT - Generally, the present disclosure is directed to systems that may be used to facilitate the retrieval and/or replacement of production and/or processing equipment that may be used for subsea oil and gas operations. In one illustrative embodiment, a method is disclosed that includes, among other things, removing at least a portion of trapped production fluid ( | 11-05-2015 |
| 20160024892 | Offshore Well System with a Subsea Pressure Control System Movable with a Remotely Operated Vehicle - An offshore well drilling system for drilling a subsea well is presented that includes a floating platform, a surface BOP stack, a riser, and a driveable environmental safe guard system. The safe guard system includes an upper wellhead connector, a lower wellhead connector, a blowout preventer with shearing blind rams, and a subsea pressure control system. The subsea pressure control system can be electric, hydraulic, acoustic, or ROV actuated. More importantly, the environmental safeguard system is moveable, and can be driven around using as ROV. The present invention provides swift disconnect and recovery for emergency situations. The subsea environmental safe guard system is also much lighter in weight than traditional subsea stacks. | 01-28-2016 |
| 20160053565 | Drive Off Method from Subsea Well with Pipe Retention Capability - This invention involves a method of securing pipe (also referred to as a “string of tools”) when driving off a subsea well or sealing off a well in onshore applications where there is an emergency by grabbing the pipe before it is cut. A pipe ram then is closed on the pipe before a shear ram is actuated to cut the pipe. In subsea applications, the top of the pipe may then be raised clear of the blowout preventer within a marine riser. A blind ram and annular preventer can then be closed above the remnant of the pipe being retained by the pipe catcher. The pipe above the cut is removed through the marine riser and the marine riser itself is then disconnected. The rig is then driven off the well. If the well is reactivated the steps are reversed but the well is safely secured before the blowout preventer components are opened. The pipe supported by the catcher is independently supported before the catcher is released and the pipe lifted through the riser. | 02-25-2016 |
| 20160061007 | INSERTION AND SETTING STRUCTURE - An insertion and setting structure is used for inserting/setting a retrievable subsea unit ( | 03-03-2016 |
| 20160138346 | System For Pumping Liquid Media From A Bore And Method For Installing A Pump Unit Designed As A Progressive Cavity Pump In A Bore - A system for pumping liquid media from a bore. The system includes a riser pipe, which extends at least approximately in a longitudinal direction of the bore, and a pump unit, which is accommodated in the riser pipe and which has a stator and a rotor. The system also includes a drive train connected to the rotor for eccentrically moving the rotor. The system also includes an adapter unit, which is connected to the stator and which holds the stator substantially stationary in the riser pipe by clamping contact with the riser pipe. The invention further relates to a method for installing a pump unit designed as a progressive cavity pump in a bore. | 05-19-2016 |
| 20190145217 | BLOWOUT PREVENTER BONNET ASSEMBLY | 05-16-2019 |
