| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166340000 | Disconnection | 31 |
| 20110088909 | STABPLATE CONNECTIONS - A stabplate connection is provided by: providing a first part ( | 04-21-2011 |
| 20110192609 | Retrievable Subsea Bridge Tree Assembly and Method - A retrievable bridge is provided which mounts to the top of a subsea tree to provide fluid communication between the production line of the subsea tree and a production flowline. The retrievable bridge mounts to the top of the subsea tree and preferably connects to a vertically oriented pipe of the production flowline. The retrievable bridge can be utilized to carry wear items such as chokes, subsea control modules, and flow meters which may require maintenance more often than other components of the subsea tree. By mounting these items along the flow passageway in the retrievable bridge the components are securely mounted and still available for maintenance/replacement without the need to remove the entire tree. In one embodiment, Intervention into the well is available without removing the retrievable bridge. The subsea tree does not require and preferably does not have a connection to the production flowline except through the retrievable bridge. | 08-11-2011 |
| 20110226482 | Apparatus and Method for Separating a Tubular String from a Subsea Well Installation - An apparatus for separating a tubular string from a subsea well installation. The apparatus includes a heave compensator tensioning the tubular string, a subsea actuator assembly positioned within the tubular string, a subsea controller in communication with the subsea actuator assembly, a subsea safety tree positioned within the subsea well installation and a fluid delivery subsystem. An output signal generated by the subsea controller responsive to receipt of a predetermined input signal releases a piston of the subsea actuator assembly such that the tension in the tubular string shifts the piston relative to a cylinder energizing fluid in the fluid delivery subsystem to actuate the retainer valve, the shut-in valve assembly, the vent sleeve and the latch assembly, thereby safely separating the tubular string from a subsea well installation. | 09-22-2011 |
| 20120018164 | CLAMP FOR A WELL TUBULAR - A tubular clamp for gripping a tubular is disclosed. In one aspect, a tubular clamp for use with a cutting and lifting system is provided. The tubular clamp is configured to move between an opened position and a closed position. The tubular clamp further includes at least one slip member to permit the clamp to bear the weight of a severed tubular string. Lifting lugs on an outer surface of the clamp permit attachment to a lifting assembly. | 01-26-2012 |
| 20120037374 | PLUG REMOVAL AND SETTING SYSTEM - A method for removing a plug from and setting a plug into a subsea installation is provided. The method for removing the plug includes the steps of deploying an intervention package having at least one valve, pipe rams, and a lubricator into a subsea environment and latching the intervention package to the subsea installation. The method further includes lowering a stroking tool into the intervention package by conveyance from a surface facility, and grabbing the stroking tool with the pipe rams that form a part of the intervention package. Once the stroking tool is held by the pipe rams, the method further includes activating the stroking tool to stroke in an upwards or downwards direction to remove the plug positioned in the subsea installation. Once the plug has been removed by the stroking tool, the method further includes pulling the stroking tool out of the intervention package and retrieving the stroking tool and plug at surface. | 02-16-2012 |
| 20120043089 | RETRIEVING A SUBSEA TREE PLUG - A method for riserless intervention of a subsea well includes: lowering a pressure control assembly (PCA) from a vessel to a subsea production tree; fastening the PCA to the tree; deploying a plug running tool (PRT) into the PCA, wherein the PRT comprises a latch, an anchor, and a stroker; engaging the latch with a plug of the tree; engaging the anchor with the PCA; and operating the stroker to pull the latch and the plug from the tree. | 02-23-2012 |
| 20120067589 | RISER EMERGENCY DISCONNECT CONTROL SYSTEM - An emergency riser disconnection system for disconnecting a riser from a subsea installation having disconnect actuators and a signal and power circuit for controlling the actuators. The signal and power circuit is made up of an umbilical with signal lines and hydraulic lines. At an umbilical termination, the signal and hydraulic lines exit the umbilical and can be routed separately to the disconnect actuators. The umbilical termination is disposed above the uppermost break away point on the riser and can be recovered after the riser is disconnected. | 03-22-2012 |
| 20120132430 | Emergency Disconnect Sequence Timer Display and Method - A rig control interface, system, and method. The rig control interface includes an emergency disconnect sequence button configured to initiate an emergency disconnect sequence signal to be sent to multiplex pods resulting in an emergency disconnect sequence including a plurality of functions being performed by devices in one or both of a lower marine riser package and a blowout preventer stack; and an emergency disconnect sequence timer display triggered by initiation of the emergency disconnect sequence signal, the emergency disconnect sequence timer display configured to indicate one or both of time elapsed after initiation of the emergency disconnect sequence signal and a status of the plurality of functions being performed by the devices in the one or both of the lower marine riser package and the blowout preventer stack. | 05-31-2012 |
| 20120132431 | Emergency Disconnect Sequence Video Capture and Playback - Emergency disconnect sequence (EDS) video capture systems and method. The EDS video capture system includes a stack screen on a drilling platform, the stack screen including an EDS button to initiate an EDS signal to be sent to multiplex pods resulting in an EDS including a plurality of functions being performed by devices in one or both of a lower marine riser package and a blowout preventer stack, and an EDS function status indicator. The indicator is either a video capture device aimed at the stack screen to automatically capture one or more of the initiation of EDS signal by the EDS button and a progress of the EDS indicated by the EDS function status indicator as EDS evidence or a video card to capture one or more of the initiation of the EDS signal by the EDS button and a progress of the EDS indicated by the EDS function status indicator as EDS evidence, and a storage to store the EDS evidence. | 05-31-2012 |
| 20120175123 | Separation Device - A subsea separation device for use in separating a pair of stabplate connector plates, the subsea separation device comprising a first engagement member adapted to engage, in use, a first one of the connector plates, or a component rigidly secured thereto, a second engagement member adapted to engage, in use, a second one of the connector plates or a component rigidly secured thereto, and drive means operable to urge the first and second engagement members apart and so urge the connector plates apart. | 07-12-2012 |
| 20120222865 | Drilling Riser Adapter Connection with Subsea Functionality - A drilling riser adapter variably connects and releases a riser from a subsea wellhead assembly. The drilling riser adapter has a hydraulically actuated engagement assembly for selectively engaging and disengaging a lower end of the marine riser. The drilling riser adapter also includes a control panel communicatively coupled to the engagement assembly for actuating the engagement assembly to engage and disengage the lower end of the marine riser. The drilling riser adapter also includes a hydraulic fluid pressure receptacle on the control panel for engagement by a remotely operated vehicle to supply hydraulic fluid pressure to the engagement assembly. The drilling riser adapter may be actuated subsea to release a first riser from the wellhead assembly, and connect to a second riser. | 09-06-2012 |
| 20120234549 | METHOD FOR REMOVING A HYDROCARBON PRODUCTION PLATFORM FROM SEA - A method for removing a hydrocarbon production platform at sea, the production platform being connected to a hydrocarbon well, and including a support structure and an upper part being supported by the support structure, where the method includes the steps of; temporarily closing the well, removing at least part of the upper part from the support structure, positioning a well abandonment module on the support structure, which well abandonment module is constructed and arranged to perform well abandonment operations, performing abandonment operations from the well abandonment module to abandon the well, removing the well abandonment module from the support structure after the well abandonment operations are completed. | 09-20-2012 |
| 20120267116 | FLANGE OVERSHOT RETRIEVAL TOOL - A tool for removing a first flange from a second flange comprises a housing having a central axis, a first end, and an open second end opposite the first end. The housing also includes a first access port extending radially therethrough. In addition, the tool comprises an annular basket grapple coaxially disposed within the second end of the housing and configured to coaxially receive and engage a first flange. The basket grapple has a first end, a second end opposite the first end, and a cutout extending radially therethrough. The outer surface of the basket grapple includes external threads that engage mating internal threads on the inner surface of the housing. Further, the tool comprises a key releasably coupled to the housing. The key is configured to selectively prevent relative rotation between the basket grapple and the housing. | 10-25-2012 |
| 20120273212 | FLANGE SEPARATION AND RETRIEVAL TOOL - A tool for separating a first flange from a second flange comprises an annular body disposed about a central axis and defining a flange capture cavity. In addition, the tool comprises a plurality of circumferentially-spaced wedge members moveably coupled to the body. Further, the tool comprises a first actuation assembly configured to move each wedge member from a first position radially withdrawn from the capture cavity to a second position radially advanced into the capture cavity. | 11-01-2012 |
| 20130075104 | GUIDE FUNNEL - A guide funnel for guiding a subsea infrastructure for connection with a subsea wellhead or mandrel profile is provided. The guide funnel comprises a plurality of sections, wherein the sections are collapsible such that the guide funnel can be in an extended state or a collapsed state. | 03-28-2013 |
| 20130146299 | Combined Barrier and Lubrication Fluids Pressure Regulation System and Unit for a Subsea Motor and Pump Module - A barrier and lubrication fluids pressure regulation system for a subsea motor and pump module is disclosed, comprising a lubrication fluid circuit in flow communication with a hydraulic fluid supply via a first pressure reducing regulator ( | 06-13-2013 |
| 20130192842 | Method and Apparatus to Perform Subsea or Surface Jacking - A jack system may provide subsea or surface operation. The jack system includes a top plate and a base plate with at least two pistons disposed between the base and top plate. The pistons are extendable to increase a separation distance between the base and top plate, and said pistons are retractable to decrease the separation distance between the base and top plate. The jack system also includes a bottom slip bowl assembly, a top slip bowl assembly, and rotary assembly. The top slip bowl and rotary assembly are rotateably coupled to the top plate wherein the rotary assembly and the top slip bowl assembly rotate relative to the top plate. | 08-01-2013 |
| 20130319680 | Drilling Riser Retrieval in High Current - The disclosure is directed to a method for retrieving a drilling riser connected to a blow-out-preventer (BOP) located on a sea bed. The method includes the steps of: a) attaching the first end of the retrieval line to a vessel; b) attaching the second end of the retrieval line to a drilling riser; c) disconnecting the riser from the BOP; d) initiating the assent of the disconnected riser from the sea bed; e) maintaining tension on the riser as it ascends to the sea surface by creating a horizontal load that is opposite to a current load on a bottom end of the riser; f) releasing tension on the retrieval line as the riser approaches the bottom of the drilling vessel; and/or g) disconnecting the retrieval line from the riser, whereby the riser is pulled through the bottom opening in the drilling vessel. | 12-05-2013 |
| 20130333895 | Tool for Extracting An Object Engaged in A Fluid Exploitation Pipe, Extraction Device and Related Method - The tool includes a bearing member ( | 12-19-2013 |
| 20140144646 | Well Safety Equipment - An independently operable disconnect device remotely disconnectable from an LMRP to reveal a riser profile compatible with a capping device connecter. A capping device including a capping device connector to be coupled to said riser profile. The capping device includes at least one blow-out preventer operable to stop the overflow of petroleum products from a well. Thus, a drilling marine riser may be fully disconnected from an LMRP in an emergency. Then the well may be subsequently capped. | 05-29-2014 |
| 20140262307 | RISER DISCONNECT PACKAGE FOR LOWER MARINE RISER PACKAGE, AND ANNULAR-RELEASE FLEX-JOINT ASSEMBLIES - A riser disconnect/reconnect system including a disconnection package (RDP) and a modified lower marine riser package (LMRP) are provided for quick disconnection of the marine drilling riser (MDR) from the LMRP. The RDP includes a flex joint and a release connector (RC) with a mandrel that engages a modified LMRP. In an emergency event, the RDP is disconnected from the LMRP allowing access to the BOP stack for emergency intervention. In routine drilling operations, the RDP is disconnected from the LMRP facilitating the recovery of the LMRP or BOP stack to the surface for repair or maintenance without recovering the MDR. The RC joins the flex joint to the uppermost annular blowout preventer in the LMRP. The RC is configured for use in a standard or inverted position. Also provided is a mechanical locking connector, a resident ROV and sonar technology and methods of using same with the RDP. | 09-18-2014 |
| 20140332221 | Subsea Well Safing System - A subsea well safing method and apparatus to secure a subsea well in the event of a perceived blowout in a manner to mitigate the environmental damage and the physical damage to the subsea wellhead equipment to promote the ability to reconnect and recover control of the well. The safing assembly is connectable to a subsea well and a marine riser. Pursuant to a safing sequence, the well tubular is secured in the upper and lower safing assemblies and the tubular is then sheared between the locations at which it has been secured. Subsequently, an ejection device may be actuated to physically separate the upper safing assembly and the connected marine riser from the lower safing assembly the subsea well. | 11-13-2014 |
| 20140345872 | LASER ASSISTED SYSTEM FOR CONTROLLING DEEP WATER DRILLING EMERGENCY SITUATIONS - There is provided a high power laser riser blowout preventer system and controller for operation thereof. The system utilizes high power laser cutters that are associated with the riser and the blowout preventer to provide an integrated operation to quickly weaken or cut tubulars to address potential emergency and emergency situations that can arise during deep sea drilling. | 11-27-2014 |
| 20140374114 | Subsea Intervention System - A subsea intervention system including at least one control station, at least one programmable logic controller system in each control station, at least one supervisory control and data acquisition system, at least one safety system capable of interacting with each control station, wherein the safety system is capable of controlling a process shutdown process, an emergency shutdown process, and an emergency quick-disconnect process. The system may also include subsea distribution units, safety manifold subsea control modules, system hydraulic power units, client hydraulic power units, grease skids, flushing and chemical injection units, or umbilical reelers. | 12-25-2014 |
| 20150041144 | RISER CUTTING TOOL - A method of separating a riser, comprising providing a riser having an inner and an outer surface, a circumference of said outer surface, a longitudinal axis and a first end and a second end; radially surrounding said riser with an explosive shaped charge material, wherein said shaped charge explosive material is capable of generating a high-velocity plasma jet in response to an activation signal, and wherein said explosive material comprises an electrically conductive layer; transmitting said activation signal to said explosive material; generating said high-velocity plasma jet; and separating said riser into a first portion comprising said first end and a second portion comprising said second end when said high-velocity plasma jet penetrates said outer surface of said riser and exits said inner surface of said riser. | 02-12-2015 |
| 20150361769 | 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 ( | 12-17-2015 |
| 20150376974 | Well Safety Equipment - An independently operable disconnect device remotely disconnectable from an LMRP to reveal a riser profile compatible with a capping device connecter. A capping device including a capping device connector to be coupled to said riser profile. The capping device includes at least one blow-out preventer operable to stop the overflow of petroleum products from a well. Thus, a drilling marine riser may be fully disconnected from an LMRP in an emergency. Then the well may be subsequently capped. | 12-31-2015 |
| 20160024867 | Method of Subsea Containment and System - A method and system of subsea containment which includes the steps of lowering the running tool into a subsea containment system, wherein the subsea containment system comprises an annular preventer, engaging the running tool to a target, closing the annular preventer, pulling up the target, and circulating fluid about the target. In a preferred method, rotating the running tool, cutting tubing, circulating the fluid at of the circulation line through the outlet, pulling the running tool out of the subsea containment system, and/or opening the annular preventer also performed. The target may be any item found in a subsea environment including a tubing hanger, a casing hanger, a tubing, a seal assembly, a component of a wellhead, or a component of the downhole completion. | 01-28-2016 |
| 20160069165 | AXIALLY ACTUATED EXTERNAL WELLHEAD LATCH - A wellhead latch assembly may include one or more latches for attaching to a wellhead and allowing removal of the wellhead during a well abandonment process. The wellhead latch assembly may include an inner core coupled to the latches, and an outer sleeve for selectively latching and unlatching the latches to the wellhead. The inner core may abut the wellhead and can include a groove having circumferential and/or longitudinal features. The outer sleeve may include a pin which travels within the groove and a set of cut-outs for alignment with the latches. When the cut-outs align with the latches, the latches may expand radially outward and disengage the wellhead. As the outer sleeve moves axially or rotationally relative to the inner core, the latches may fall out of alignment with the cut-outs and move radially inwardly to engage or capture the wellhead. | 03-10-2016 |
| 20160076306 | SYSTEMS AND METHODS FOR SUBSEA DRILLING - A subsea drilling method and system controls drilling fluid pressure in the borehole of a subsea well, and separates gas from the drilling fluid. Drilling fluid is pumped into the borehole through a drill string and returned through an annulus between the drill string and the well bore and between the drill string and a riser. Drilling fluid pressure is controlled by draining fluid out of the riser or a BOP at a level between the seabed and the surface in order to adjust the hydrostatic head of drilling fluid in the riser. The drained drilling fluid and gas is separated in a subsea separator, where the gas is vented to the surface through a vent line, and the fluid is pumped to the surface via a subsea pump. A closing device and a choke line and valve can release pressure after a gas kick in the well. | 03-17-2016 |
| 20160076341 | CEMENTING SYSTEM FOR RISERLESS ABANDONMENT OPERATION - A method for abandonment of a subsea well includes: setting a packer of a lower cementing tool against a bore of an inner casing at a location adjacent to an outer casing; fastening a pressure control assembly (PCA) to the subsea wellhead; hanging an upper cementing tool from the PCA and stabbing the upper cementing tool into a polished bore receptacle of the lower cementing tool; perforating a wall of the inner casing below the packer; perforating the inner casing wall above the packer by operating a perforator of the upper cementing tool; and pumping cement slurry followed by a release plug through bores of the cementing tools. The release plug engages and launches a cementing plug from the lower cementing tool. The cementing plug drives the cement slurry through the perforations below the packer and into an inner annulus formed between the inner casing and the outer casing. | 03-17-2016 |
