Entries |
Document | Title | Date |
20080223582 | Field Development with Centralised Power Generation Unit - The invention relates to a hydrocarbon exploration system, comprising a first vessel ( | 09-18-2008 |
20080230227 | Control System of an Actuator for the Actuation of Submarine Devices - Electronic control system for a submarine actuator, said actuator comprising a container body, from which a drive shaft projects that is suitable for inserting in a seat of said submarine device. The system comprises an electronic control board for at least one electric motor arranged inside said container body suitable for moving said drive shaft. | 09-25-2008 |
20080314597 | Apparatus for Subsea Intervention - A technique for monitoring and evaluating parameters related to the use of a compliant guide system in intervention operations. A compliant guide enables movement of a conveyance within its interior and is coupled between a subsea installation and a surface vessel. A sensor system is provided with sensors deployed in subsea locations to detect operational parameters related to operation of the compliant guide. A control system is coupled to the sensor system to receive data output from the sensor system. | 12-25-2008 |
20090008099 | Centralization and Running Tool and Method - The invention relates to a centralization and running tool (CTR) in a subsea installation in connection with offshore related oil and gas exploration, where the subsea installation (SCM) is arranged to be placed on the ocean bottom or a drilling template and comprises a pipe-formed body ( | 01-08-2009 |
20090025935 | System and methods for producing oil and/or gas - A system including a mechanism for recovering oil and/or gas from an underground formation, the oil and/or gas comprising one or more sulfur compounds; a mechanism for converting at least a portion of the sulfur compounds from the recovered oil and/or gas into a carbon disulfide formulation; and a mechanism for releasing at least a portion of the carbon disulfide formulation into a formation. | 01-29-2009 |
20090038804 | Subsurface Safety Valve for Electric Subsea Tree - An all electric subsea tree can be coupled with a hydraulic pressure unit that is fed off electrical and control lines that are in the umbilical from the surface. In that way hydraulic lines do not need to be separately run from the surface to the tree. Alternatively hydraulic pressure can be generated at a downhole tool using power and control lines running from the tree to the downhole equipment. As another alternative, the downhole equipment can be run by electric motor located downhole adjacent the downhole equipment and powered and controlled by lines running from the tree to the downhole location. | 02-12-2009 |
20090133880 | VOLUMETRIC COMPENSATING ANNULAR BELLOWS - Embodiments of the present invention relate to a volumetric compensating annular bellows used to compensate two fluid volumes by an annular displacement. This is achieved using a bellows welded on to a tube with a varying shape radius. A bellows is arranged within the annulus and is deformable in an annular direction in response to fluid volume expansion. The bellows can be used in several oilfield applications for fluid compensation. | 05-28-2009 |
20090145610 | Methods of Using Enhanced Wellbore Electrical Cables - An embodiment of a method of deploying a cable into a wellbore penetrating a subterranean formation comprises providing a cable, wherein the cable comprises at least one insulated conductor, at least one armor wire layer surrounding the insulated conductor, a polymeric material disposed in interstitial spaces formed between armor wires forming the at least one armor wire layer, and interstitial spaces formed between the at least one armor wire layer and insulated conductor, the polymeric material forming a continuously bonded layer which separates and encapsulates the armor wires forming the at least one armor wire layer, and whereby the polymeric material is extended to form a smooth polymeric jacket around the at least one armor wire layer, introducing the cable into a wellbore and performing at least one operation in the wellbore utilizing the cable. | 06-11-2009 |
20090151953 | SUBMERSIBLE PUMP WITH SURFACTANT INJECTION - A submersible pumping system for use downhole that includes a housing, a pump and gas separator within the housing, a motor for driving the pump and separator, and a foaming agent injection system. The foaming agent injection system injects a foaming agent upstream of the pump and optionally upstream of the separator. The foaming agent injection system comprises a foaming agent supply, an injection pump, and foaming agent injection line. | 06-18-2009 |
20090151954 | SUBSEA HYDRAULIC AND PNEUMATIC POWER - Systems and methods for providing energy to sub-sea support equipment. Energy can be provided by diverting at least a portion of a fluid from a well producing system to sub-sea support equipment units that can be disposed in the vicinity of the sea-floor, sea-bed, or mud-line. The well producing system can include, but is not limited to, a water injection system, a gas lift system, or combinations thereof. A water injection system designed to provide pressure support to one or more wells can be modified to provide an operational power source to one or more sub-sea support equipment units. | 06-18-2009 |
20090151955 | BIG ASSEMBLY WITH MOVABLE RIG FLOOR UNITS - The invention relates to a rig assembly for use in the oil and gas exploration and production industry. In an embodiment of the invention, a rig assembly ( | 06-18-2009 |
20090173502 | Offshore Installation Attachment System - A method of lifting at least a portion of an attachment system to and from a predetermined location comprises providing an attachment system comprising a support member, a socket member, and a locking member, the support member located at the predetermined location and defining an indentation formed therein, the socket member defining a cavity formed therein, placing the socket member in the indentation, placing the locking member in the cavity, locking the locking member in the socket member, and lifting the locked socket member and locking member from the support member and to the predetermined location. | 07-09-2009 |
20090183881 | INTERVENTION SYSTEM WITH DYNAMIC SEAL - A technique for subsea intervention operations incorporates use of a compliant guide that extends between a surface location and a subsea installation. The technique facilitates deployment of tool strings into a subsea well. A dynamic seal can be conveyed through the compliant guide to a desired subsea location. At this location, the dynamic seal is locked into place to provide a subsea dynamic seal that can be used to facilitate the intervention operations. | 07-23-2009 |
20090200035 | All Electric Subsea Boosting System - The present invention relates to an all electric subsea boosting system for well fluid boosting by compressing hydrocarbon gases and/or pumping hydrocarbon liquids where said system comprises one or more subsea boosting stations and one or more long step-out power supplies. | 08-13-2009 |
20090266550 | Subsea Toroidal Water Separator - A compact, low footprint water separation system for use in subsea well operations. A subsea production tree has a vertical passage and at least one laterally extending branch. A subsea gravity separation device having a hollow toroidal body detachably is mounted around and connected to the production tree. An inlet on a first side portion of the separation device is connected to the at least one laterally extending branch of the production tree and admits production fluid. The production fluid flows through the separation device where it passes through a separation unit. After passing through a separation unit, less dense fluid is discharged through an upper outlet and more dense fluid is discharged through a lower outlet. The upper and lower outlets are positioned opposite the first side portion of the separation device. | 10-29-2009 |
20090283273 | WELL CONSTRUCTION AND COMPLETION - A well sealing system includes a tailipipe set in a wellbore casing, the annular space between the tailpipe and the casing being sealed by a packer comprising at least two annular seals, and the internal diameter of the tailpipe being sealed by at least two internal seals. Disclosed are also an apparatus and a method for providing a casing in a bore hole for a well an offshore location, comprising the steps of: a) fabricating a casing in a location remote from the offshore well location; b) floating the casing to the location; c) orienting the casing to a substantially vertical position; d) lowering in a drilling assembly; e) operating a drill bit included in the drilling assembly to drill a borehole; f) lowering the casing into the bore hole as required. | 11-19-2009 |
20090321079 | POWER LINE COMMUNICATION SYSTEM - A hydrocarbon production installation comprising a surface station and an underwater hydrocarbon extraction facility, the surface station and extraction facility being electrically linked via an umbilical cable, the installation further comprising means for transmitting first and second components of a communications signal and power from the surface station to the extraction facility via the umbilical cable. The transmitting means including means for passing the communications components through the umbilical cable in a balanced manner. The transmitting means further comprises means for transmitting the power through the umbilical cable superimposed on the communications components, and the facility comprises means for receiving the communications components and separating the power from the communications components. | 12-31-2009 |
20100006297 | PIPE STRING DEVICE FOR CONVEYING A FLUID FROM A WELL HEAD TO A VESSEL - A device including a pipe string device anchored to a sea floor. The device is configured to convey a fluid from a well head to a vessel during a drilling phase of a well. The fluid is located in the pipe string and needing, for well-technical reasons, to be given a flow boost. The pipe string that is anchored on the sea floor is provided with at least one injection point for a driving fluid. | 01-14-2010 |
20100012325 | SYSTEM AND METHOD FOR SUB-COOLING HYDROCARBON PRODUCTION FLUID FOR TRANSPORT - A technique is provided for producing a slurry of solid particulates and hydrocarbon production fluid for transport via a subsea flow line. The technique utilizes a cold flow system that cools production fluid to a temperature below the temperature at which hydrates and other substances precipitate from the production fluid and form solid particulates. An instrumentation and control system is used to receive and process data from sensors in the system. The instrumentation and control system then provides control signals to one or more components of the cold flow system to produce a slurry having solid particulates with desirable characteristics. In addition, a cooling gas may be used to facilitate sub-cooling of the production fluid. The cooling gas is compressed and cools the production fluid as the gas expands via Joule-Thompson expansion. Furthermore, a discharge pressure controller may be used to control flow through the cold flow system. | 01-21-2010 |
20100108321 | APPARATUS FOR VENTING AN ANNULAR SPACE BETWEEN A LINER AND A PIPELINE OF A SUBSEA RISER - An apparatus for venting an annular space between a liner and a pipeline of a subsea riser used for conveying hydrocarbons, the apparatus comprising a permeate recovery device for recovering permeate passing through the liner into the annular space. The permeate recovery device includes a first vent port in a wall of the pipeline at or adjacent a lower region of the pipeline and communicating with a permeate recovery line defining a flow path between the annular space and a permeate collection vessel. A one-way valve is associated with the permeate recovery line for preventing flow from the permeate recovery line into the annular space. A gaseous permeate recovery line connected to a second vent port at an upper region of the pipeline defining a flow of gaseous permeate from the annular space. | 05-06-2010 |
20100139924 | Method and apparatus for removing plugs from subsea equipment through the use of exothermic reacting chemicals - A method of servicing subsea equipment comprising positioning a reaction chamber about the subsea equipment having a plug therein, wherein positioning the reaction chamber substantially isolates an area about the subsea equipment from an environment external to the reaction chamber, providing one or more reactants to the reaction chamber, and allowing a reaction to proceed between the reactants, wherein the reaction produces sufficient heat to eliminate the plug. A system for removing plugs from subsea equipment comprising a support vessel, a reaction chamber supported by the support vessel and positioned adjacent the subsea equipment having a plug therein, wherein the reaction chamber is configured to substantially isolate an area about the subsea equipment having a plug therein from an environment external to the reaction chamber, and one or more exothermically-reacting chemical reactants present within the reaction chamber. | 06-10-2010 |
20100155071 | Subsea Force Generating Device and Method - Method and water submerged device for generating a force under water. The device includes a low pressure recipient configured to contain a volume of a first fluid at a low pressure volume, an inlet connected to the low pressure recipient and configured to exchange a second fluid with an external enclosure, and a valve connected to the external enclosure and the inlet and configured to separate a pressure source in the external enclosure from the low pressure recipient. When the valve is open, such that there is a flow communication between the external enclosure and the low pressure recipient, a pressure imbalance occurs in the external enclosure which generates the force and the second fluid from the external enclosure enters the low pressure recipient and compresses the first fluid. | 06-24-2010 |
20100155072 | Rechargeable Subsea Force Generating Device and Method - Method and device to be used for resetting a pressure in a low pressure recipient connected to a subsea pressure control device. The device includes the low pressure recipient configured to have first and second chambers separated by a first piston; a reset recipient configured to have third and fourth chambers separated by a piston assembly, and the piston assembly includes a second piston having first and second extension elements that extend along a direction of movement of the piston assembly. The third chamber has an inlet configured to allow the hydraulic liquid to enter the third chamber and an outlet configured to allow the hydraulic liquid to exit the third chamber, and the fourth chamber has an inlet configured to allow the hydraulic liquid to enter the fourth chamber and an outlet configured to allow the hydraulic liquid to exit the fourth chamber. | 06-24-2010 |
20100163242 | "Removing Air Wave Noise From Electromagnetic Survey Data" - Method for removing air wave noise from shallow water controlled source electromagnetic survey data, using only the measured data and conductivity values for sea water ( | 07-01-2010 |
20100175882 | Subsea Internal Riser Rotating Control Device System and Method - An RCD is used to provide a system and method for sealing a marine riser having a rotatable tubular. A bypass internal channel or external line may be used to allow fluid to bypass the RCD seal. An RCD seal assembly seal could be a mechanically extrudable seal or a hydraulically expanded seal to seal the RCD with the riser. | 07-15-2010 |
20100175883 | UNDERSEA WELL PRODUCT TRANSPORT - An apparatus and corresponding method of use extracts, cools, and transports effluents from subterranean, sub-sea oil formations to distant shore based processing facilities. The effluents, mostly crude oil, are conveyed rapidly to a cold flow generator near the oil wellhead on the sea bottom using the cold seawater to chill the effluents to a dispersed mixture including generated solids. The mixture is transported close to sea bottom temperatures, slowly, with small pressure drops, in low-cost submerged bare pipes over long distances to on or near shore processing facilities that can produce useful hydrocarbon products more cost effectively than at sea processing facilities. The apparatus eliminates or minimizes the need for heated or insulated pipe, the need for large floating processing structures, the need for sub-sea processing equipment, and/or the need for chemical additions to production flow. | 07-15-2010 |
20100193194 | Method For Managing Hydrates In Subsea Production Line - A method for managing hydrates in a subsea production system is provided. The production system includes a host production facility, a control umbilical, at least one subsea production well, and a single production line. The method generally comprises producing hydrocarbon fluids from the at least one subsea production well and through the production line, and then shutting in the production line. In addition, the method includes the steps of depressurizing the production line to substantially reduce a solution gas concentration in the produced hydrocarbon fluids, and then repressurizing the production line to urge any remaining gas in the free gas phase within the production line back into solution. The method also includes displacing production fluids within the production line by moving displacement fluids from a service line within the umbilical line and into the production line. The displacement fluids preferably comprise a hydrocarbon-based fluid having a low dosage hydrate inhibitor (LDHI). | 08-05-2010 |
20100206573 | METHOD AND APPARATUS FOR COOLING A GASEOUS HYDROCARBON STREAM - A method of cooling a gaseous hydrocarbon stream ( | 08-19-2010 |
20100294503 | Subsea Cementing Plug System With Plug Launching Tool - A subsea cementing system that includes a first wiper plug having a central bore releasably connected to a launching mandrel, and a second wiper plug having a central bore releasably connected to the first wiper plug. The system includes a first dart that is adapted to seal the central bore of the second wiper plug. A first increase in pressure releases the second wiper plug from the first wiper plug and a second increase in pressure breaks a burst disc of the first dart allowing cement to flow past the second wiper plug. A second wiper dart is adapted to seal the central bore of the first wiper plug. A third increase in pressure releases the first wiper plug from the launching mandrel. A fourth increase in pressure releases a sealing member from the second dart, which is adapted to seal the central bore of the second wiper plug. | 11-25-2010 |
20100307759 | SYSTEMS AND METHODS FOR PRODUCING OIL AND/OR GAS - A system for producing oil and/or gas from an underground formation comprising a first array of wells dispersed above the formation; a second array of wells dispersed above the formation; wherein the first array of wells comprises a mechanism to inject a miscible enhanced oil recovery formulation into the formation while the second array of wells comprises a mechanism to produce oil and/or gas from the formation for a first time period; and a means to convert at least a portion of the miscible enhanced oil recovery formulation within the formation into another compound during a second time period. | 12-09-2010 |
20110030966 | UNIVERSAL METHOD AND APPARATUS FOR DEPLOYING FLYING LEADS - In one embodiment, the subsea deployment system may be used to install flying leads with integral buoyancy. In another embodiment, the subsea deployment system may be used to install flying leads with separate buoyancy modules. The installation sling assembly may be used with the subsea deployment system or with other systems to deploy flying leads subsea. The universal removable cartridge may be interchanged for use on a horizontal drive unit and a mud mat. | 02-10-2011 |
20110036587 | METHOD AND SYSTEM FOR RISERLESS CASING SEAT OPTIMIZATION - A system and method for optimal placement of a riserless casing in a subsea drilling environment having the steps of: receiving input of pore pressure data for a well site; receiving input of fracture gradient for said well site; receiving input of the anticipated true vertical depth of said well site; integrating pore pressure data, fracture gradient data with said true vertical depth values; computing a pore pressure and fracture gradient verses true vertical depth graph; determining the true vertical depth at which the pore pressure begins to exceed the normal gradient of salt water; and determining the placement of a conductor casing string by corresponding the gradient true vertical depth to the true vertical depth of where the pore pressure beings to exceed the normal gradient of salt water. The method improves upon conventional placement of the riserless casing by optimizing the placement to achieve larger diameters in the wellbore, increased well depth, and mitigation of shallow hazards. Furthermore, the method of the present invention transforms readily available data to calculate optimal placement of a structural casing string to serve a dual purpose by providing not only structural integrity for the wellbore, but also ensuring leak-off integrity by taking advantage of the early growth of the fracture gradient of the natural subsea environment. Also, the suggestion that casing drilling will assist in mitigating shallow drilling hazards to allow casing seats to be placed as prescribed by this present invention. The method of the present invention may be implemented by a computer based apparatus or implemented using executable computer code on a computer based system. | 02-17-2011 |
20110203802 | PRESSURE CONTROL DEVICE WITH REMOTE ORIENTATION RELATIVE TO A RIG - A method of maintaining a substantially fixed orientation of a pressure control device relative to a movable rig can include rotating a body of the pressure control device while the rig rotates. A method of remotely controlling an orientation of a pressure control device relative to a movable rig can include rotating a body of the pressure control device, and controlling the rotation of the body from a location on the rig remote from the body. A pressure control device for use in conjunction with a rig can include a body, a flange, an orientation device which changes a rotational orientation of the body relative to the flange, and an orientation control system which remotely controls the orientation device. | 08-25-2011 |
20110232912 | SYSTEM AND METHOD FOR HYDRAULICALLY POWERING A SEAFLOOR PUMP FOR DELIVERING PRODUCED FLUID FROM A SUBSEA WELL - A system and method for hydraulically powering a seafloor pump and thereby delivering produced fluid from a subsea well are provided. The system includes a power fluid source, such as a seawater source, which is located at a seasurface location of a sea, and a hydraulically-driven pump, which is located at a seafloor location. The pump is configured to receive a flow of produced fluid from a subsea well and deliver the produced fluid through a riser to a receiver at a seasurface location. One or more conduits that define a feed passage connect the source and the pump, and the source is configured to receive power fluid and provide a flow of the power fluid via the feed passage of the conduit to the pump. The pump is hydraulically operated by the flow of power fluid and delivers the produced fluid from the pump to the receiver. | 09-29-2011 |
20110247825 | SYSTEM AND METHOD FOR SUBSEA POWER DISTRIBUTION NETWORK - An integrated power distribution system utilizes a subsea power distribution hub that receives high voltage electricity through an umbilical from a host surface facility. The subsea power distribution hub steps down the high voltage electricity and distributes the appropriate electrical power supply to multiple components of a subsea production system (e.g., in-well pumps, subsea booster pumps, subsea processing units, subsea valves, and subsea sensors) via jumpers. The integrated subsea power distribution system can be utilize to supply electrical power to all of the required process components of the subsea production system from the in-well completion to the surface host facility. | 10-13-2011 |
20110290494 | METHOD FOR CIRCULATING A FLUID ENTRY OUT OF A SUBSURFACE WELLBORE WITHOUT SHUTTING IN THE WELLBORE - A method for removing a fluid influx from a subsea wellbore drilled using a pump to return fluid from the wellbore to the surface. The method includes detecting the influx when a rate of the return pump increases. Flow from the wellbore is diverted from the return pump to a choke line when the influx reaches the wellhead. A choke in the choke line is operated so that a rate of fluid pumped into the wellbore is substantially equal to a flow rate through the choke line. Fluid flow from the wellbore is redirected to the return pump inlet when the influx has substantially left the well. | 12-01-2011 |
20110290495 | METHOD AND APPARATUS TO CONROL FLUID FLOW FROM SUBSEA WELLS - The present invention is directed to methods and apparatus to construct subsea wells with redundant parallel fluid flow control systems to allow new methods to stop subsea blow outs. More specifically, this invention provides methods and apparatus to construct subsea wells with a plurality of redundant parallel paths allowing for the first time drill pipe and other intervention conduits, wire line, and fluids to be deployed below a damaged drilling riser and or a damaged blow out preventer through a separate blow out preventer and riser system presented in this invention. | 12-01-2011 |
20110308807 | USE OF WIRED TUBULARS FOR COMMUNICATIONS/POWER IN AN IN-RISER APPLICATION - A method for controlling a subsea valve assembly includes connecting a subsea riser between a wellhead and a surface vessel. An in-riser control unit is attached to a wired pipe string and disposed within the subsea riser, resulting in the in-riser control unit being deployed in-riser. The wired pipe string is connected to a surface control unit and a communication signal is transmitted through the wired pipe string between the surface control unit and the in-riser control unit to control the subsea valve assembly. | 12-22-2011 |
20110315391 | ARCUATE CONTROL LINE ENCAPSULATION - Control lines on the outer surface of a tubular disposed within a drilling riser casing may be encapsulated to facilitate formation of a seal in an annular space defined by an inner surface of the drilling riser casing and an outer surface of the tubular. More specifically, an encapsulation body may be configured to at least partially encase control lines. The encapsulation body may include a first surface and a second surface. The first surface may have an arcuate shape that corresponds to the outer surface of the tubular to facilitate formation of a seal between the first surface of the encapsulation body and the outer surface of the tubular when the first surface of the encapsulation body abuts the outer surface of the tubular. The second surface may be shaped to provide a geometrically continuous periphery about the tubular and the encapsulation body when the first surface of the encapsulation body abuts the outer surface of the tubular. | 12-29-2011 |
20120152554 | Devices and Methods for Transmitting EDS Back-up Signals to Subsea Pods - Methods and systems for a backup emergency disconnect signal (EDS) transmission in an offshore oil and gas installation are provided. A backup EDS transmission system includes a pressure pulse generator located close to a water surface and configured to generate a predetermined pressure variation pattern including at least one of positive and negative pressure pulses and corresponding to an emergency disconnect signal, the signal being propagated downwards in a mud column. The pressure pulse generator is located at a surface end of the mud column. The backup EDS transmission system also includes a pressure pulse receptor connected to a controller of blowout preventers and configured to measure a pressure in the mud column, at a subsea location. | 06-21-2012 |
20120175122 | ELECTRONICS MODULE - An electronics module for an underwater well installation, comprising a housing and first and second electronics components, the said first and second electronics components relating to diverse systems and being located within the housing. | 07-12-2012 |
20120211230 | SUBSEA SEPARATION SYSTEMS - A method for separating a multi-phase fluid, the fluid comprising a relatively high density component and a relatively low density component, the method comprising: introducing the fluid into a separation region; imparting a rotational movement into the multi-phase fluid; forming an outer annular region of rotating fluid within the separation region; and forming and maintaining a core of fluid in an inner region; wherein fluid entering the separation vessel is directed into the outer annular region; and the thickness of the outer annular region is such that the high density component is concentrated and substantially contained within this region, the low density component being concentrated in the rotating core. | 08-23-2012 |
20130025873 | Protecting A Fluid Stream From Fouling - Embodiments described herein provide a system and methods for protecting a fluid stream from fouling using particles that include phase change materials. In an example, the particles are injected into the fluid stream and release energy at a selected temperature, which may warm the fluid stream. | 01-31-2013 |
20130043033 | UPGRADING HYDROCARBON MATERIAL ON OFFSHORE PLATFORMS - Methods and systems for upgrading hydrocarbon on offshore platforms are described. Hydrocarbon material can be extracted from deposits under bodies of water and upgraded on offshore platforms, such as through the use of one or more nozzle reactors. The upgraded hydrocarbon material produced by the nozzle reactor, can than be transported back to shore through pipelines, in part due to the improved viscosity of the upgraded material. | 02-21-2013 |
20130062069 | ACCUMULATOR HAVING OPERATING FLUID VOLUME INDEPENDENT OF EXTERNAL HYDROSTATIC PRESSURE - A method and device for maintaining pressure in an accumulator for subsea wellbore operations is disclosed. | 03-14-2013 |
20130075102 | MOBILE OFFSHORE DRILLING UNIT - A semisubmersible mobile offshore drilling unit (MODU) includes a submersible lower hull comprising a ring pontoon having a trapezoidal shape; an upper hull having the trapezoidal shape; three stability columns supporting the upper hull from the lower hull; and a drilling rig. The MODU may be operated in a tender assist mode or an independent drilling mode. The MODU may be equipped to prepare, drill, and complete a subsea wellbore or to workover an existing subsea wellbore. | 03-28-2013 |
20130098625 | Systems and Methods For Inductive Subsea Hydrocarbon Pipeline Heating For Pipeline Remediation - Systems and methods for inductively heating a subsea hydrocarbon pipeline. These systems and methods may include the use of a mobile subsea hydrocarbon pipeline heating assembly to remediate the formation of an obstruction within the subsea hydrocarbon pipeline. The mobile subsea hydrocarbon pipeline heating assembly may include a mobile subsea conveyance, which may be configured to traverse a selected portion of the subsea hydrocarbon pipeline, and an inductive heating element, which may be configured to inductively heat an inductively coupled portion of the subsea hydrocarbon pipeline. | 04-25-2013 |
20130126178 | METHOD FOR FIGHTING AN OILSPILL IN THE AFTERMATH OF AN UNDERWATER OIL WELL BLOWOUT AND INSTALLATION FOR CARRYING OUT THE METHOD - A method for pumping away the oil in the aftermath of a blowout in an offshore oil well includes the steps of putting a support structure with a surrounding foil over the leaking oil well or pipe in order to create a hollow space overhead the leaking spot on the sea bottom. Thereafter, pumping water and oil through the top of the support structure for creating an underpressure below the foil, so the foil will be pressed onto the sea bottom due to hydrostatic pressure of the outside water. Then, continuously pumping away the liquid below the foil from within the support structure until it is pure crude oil and collecting the same. A related apparatus includes a support structure with an enclosure for providing a hollow room overhead a leaking spot or oil pipe and a reinforced foil having such size that it extends at least ten meters into the surrounding of the support structure. The reinforced foil is tightly attached to the lower edge of the enclosure of the support structure. A pumping pipe connects to the top of the support structure to pump liquid from within the support structure and lower side of the foil. | 05-23-2013 |
20130146296 | RATCHET AND LATCH MECHANISMS - A device for the application of a preload between a subsea wellhead and a conductor housing comprises an activating member ( | 06-13-2013 |
20130146297 | PRELOADING DEVICE - A device for the application of a preload between a subsea wellhead and a conductor housing comprises an activating member ( | 06-13-2013 |
20130161019 | GREASE DELIVERY SYSTEM - A grease delivery system for delivering grease to a location is provided. The grease delivery system comprises: a first grease reservoir having a first grease output and a first output device configured to output grease from the first grease reservoir; a second grease reservoir having a second grease output and a second output device configured to output grease from the second grease reservoir; and a common grease output for delivering grease to the location, wherein the common grease output is fluidly connected to the first and second grease outputs, wherein the system is configured to simultaneously output grease from the first and second grease reservoirs to the common grease output. | 06-27-2013 |
20130186636 | METHOD FOR CIRCULATING A FLUID ENTRY OUT OF A SUBSURFACE WELLBORE WITHOUT SHUTTING IN THE WELLBORE - A method for removing a fluid influx from a subsea wellbore drilled using a pump to return fluid from the wellbore to the surface. The method includes detecting the influx when a rate of the return pump increases. Flow from the wellbore is diverted from the return pump to a choke line when the influx reaches the wellhead. A choke in the choke line is operated so that a substantially constant bottom hold pressure is maintained while drilling fluid continues to be pumped through the drill sgring. Fluid flow from the wellbore is redirected to the return pump inlet when the influx has substantially left the well. | 07-25-2013 |
20130199792 | SUBSEA COLLECTION AND CONTAINMENT SYSTEM FOR HYDROCARBON EMISSIONS - A rapidly deployable flexible enclosure system for the collection, containment and presentation of hydrocarbon emissions from compromised shallow or deepwater oil and gas well systems, pipelines, other structures, including subsea fissures. The flexible containment enclosure can accommodate various depths and collection terminator configurations. The flexible containment enclosure system is connected to a floating platform and supported by positive offset neutral buoyancy attachment devices. The floating platform with the flexible containment enclosure separates liquid and gaseous materials and directs them to separate ports for removal from a rigid enclosure cavity integrated within the floating platform. Gaseous emissions may optionally be directed to a tethered floating flare system. The system has the ability to partially or fully submerge for extended durations and resurface on demand manually or by transmitted signal. The system provides for operation by a combined tele-supervisory and autonomous control system. | 08-08-2013 |
20130255955 | WATER PROCESSING SYSTEMS AND METHODS - A system comprising a well drilled into an underground formation comprising hydrocarbons; a water supply; a steam production facility, the steam production facility comprising a filter to remove at least 80% of a quantity of divalent cations in the water supply; an exchange resin to remove at least 80% of a quantity of divalent cations in a filtered water stream that has already passed through the filter; a steam injection facility connected to the well and the steam production facility, adapted to inject the steam into the well. | 10-03-2013 |
20130327532 | Remote Operation of Cementing Head - Methods and systems are provided for remotely operating a cementing head. Remotely operating a cementing head ( | 12-12-2013 |
20140014353 | PACKER SETTING AND/OR UNSETTING - Linear movement via a sliding mandrel configured to translate axially is converted into radial movement to compress a packer. The packer is configured to seal an item of oilfield equipment typically in a subsea environment. The packer may also be used to return or reverse the radial movement and/or the linear movement. | 01-16-2014 |
20140027122 | Two Component Source Seismic Acquisition and Source De-Ghosting - Method for marine seismic acquisition using both monopole ( | 01-30-2014 |
20140048273 | METHOD, SYSTEM, AND COMPOSITION FOR PRODUCING OIL - A method, system, and composition for producing oil from a formation utilizing an oil recovery formulation comprising a surfactant, an alkali, a polymer, and a paraffin inhibitor are provided. | 02-20-2014 |
20140060847 | Device for Operations in Proximity of an Underwater Installation - A seabed positioned subsea installation comprise processing equipment. The subsea installation is provided with at least one guide way and at least one manipulator device. The base of the manipulator device is movably attached to the at least one guide way, and the subsea installation further comprises a frame extending over the processing equipment. | 03-06-2014 |
20140124209 | GATE VALVE - The invention provides a gate valve for control of production of petroleum, distinctive in that the valve comprises a coating or hard facing on the internal bore surface exposed to flow of petroleum and associated fluids and solids. | 05-08-2014 |
20140131047 | Subsea Sour Gas and/or Acid Gas Injection Systems and Methods - A hydrocarbon processing method, including processing a gaseous hydrocarbon stream to form a first production stream and a first injection stream; and compressing the first injection stream in a compressor placed at a selected location below a surface of a sea; wherein the location of the subsea compressor relative to a nearest inhabited area is determined based on a bubble plume trajectory of a model leak of the first injection stream from the compressor; and wherein the bubble plume trajectory is determined using one or more crossflow momentum parameters is disclosed herein. Also disclosed are hydrocarbon processing facilities having subsea compressors placed at such selected locations, processes for designing such hydrocarbon processing facilities, and a mathematical model useful in such methods, processes, facilities. | 05-15-2014 |
20140174751 | System and Method for High Speed Hydraulic Actuation - There is provided a device and method for high speed hydraulic actuation. The method includes adjusting a position of an actuator using a hydraulic pressure regulator. Adjusting the position of the actuator includes increasing pressure on the hydraulic pressure regulator to open the actuator using a first solenoid, or decreasing pressure on the hydraulic pressure regulator to close the actuator using a second solenoid. | 06-26-2014 |
20140202704 | IMPROVEMENTS RELATING TO SUBSEA COMPRESSION - Subsea apparatus ( | 07-24-2014 |
20140209313 | Mechanical Filter for Acoustic Telemetry Repeater - A subsea installation kit is described. The kit is provided with a subsea tree, a plurality of tubing sections, a plurality of acoustic repeaters and a mechanical filter. The subsea tree is configured to be coupled to a subsea well having a wellbore. The tubing sections are configured to be connected together to form a tubing string extending from above the tree into the wellbore. The acoustic repeaters are configured to be attached to the tubing string in a spaced apart manner. One of the acoustic repeaters is a last acoustic repeater configured to be attached to the tubing string within or above the tree. The mechanical filter is configured to be connected into the tubing string and form a part of the tubing string above the last acoustic repeater, the mechanical filter configured to cause an attenuation to acoustic signals propagating in the tubing string above the tree. | 07-31-2014 |
20140251630 | WELLHEAD SEAL ASSEMBLY LOCKDOWN SYSTEM - A seal assembly ( | 09-11-2014 |
20140262304 | Diverter Stabbing Dog - A diverter system having stabbing dogs is provided. In one embodiment, such a system includes a diverter, a housing, and a plurality of stabbing dogs coupled to the housing. The stabbing dogs are positioned to enable locking elements of the stabbing dogs to be extended into recesses in the diverter to secure the diverter within the housing. At least one of the recesses in the diverter is connected to a fluid conduit within the diverter, and at least one stabbing dog includes a fluid passage that enables fluid to be routed into the fluid conduit within the diverter through the at least one stabbing dog. Additional systems, devices, and methods are also disclosed. | 09-18-2014 |
20140262305 | CONTROL VALVE TIMING - A method for lifting drilling mud from subsea to a drilling vessel which a pump having a body with a chamber, and a bladder in the chamber. The bladder attaches to the body and defines water and mud sides in the chamber. A mud inlet valve allows mud into the mud side of the chamber; which moves the bladder into the water side and urges water in the water side from the chamber and through a water exit valve. Pressurized water enters the chamber through a water inlet valve, which in turn pushes the bladder and mud from the chamber through a mud exit valve. The bladder separates the mud and water as it reciprocates in the chamber. Water and/or mud inlet valves are opened before associated exit valves to reduce pressure fluctuations in the fluid lines. | 09-18-2014 |
20140318797 | ACID INJECTION - A method of applying acid-wash to a subsea connection assembly, in particular a stabplate connection, in order to remove unwanted material such as marine growth and calcareous deposits. The method consists of inserting a plug, containing channels, into a central in a stabplate connection and injecting acid-wash through the plug. The plug may be carried by an operating tool arm of a remotely operated underwater vehicle (ROV). | 10-30-2014 |
20140318798 | SYSTEM AND METHOD FOR SUBSEA STRUCTURE OBSTRUCTION REMEDIATION USING AN EXOTHERMIC CHEMICAL REACTION - Systems and methods comprise structures and methods for using a plurality of chemicals which are mixed subsea, resulting in a heated fluid which can be delivered by various means to an area about a subsea structure such as a pipe or other structure which has been compromised by a plug such as a solid gas hydrate or paraffinic plug. Various embodiments allow for selective use of insulated chambers and baffled conduits and the like, or combinations thereof, to aid in the mixing of the various chemicals and achieving a desired temperature. | 10-30-2014 |
20140318799 | Offshore Methods of Hydraulically Fracturing and Recovering Hydrocarbons - There is provided synthetic proppants, and in particular polysilocarb derived ceramic proppants. There is further provided hydraulic fracturing treatments utilizing these proppants, and methods of enhance hydrocarbon recovery. | 10-30-2014 |
20140326459 | SEALABLE WELLSITE VALVE AND METHOD OF USING SAME - A valve, system and method for controlling flow of fluid about a wellsite component of a wellsite are provided. The wellsite component has a flowline to pass the fluid therethrough. The valve includes a valve housing, a cage having holes therethrough positionable in selective fluid communication with the flowline, a valve plate operatively connectable between the valve housing and the cage (the valve plate having a sealing surface thereon), and a spool assembly comprising a spool slidably positionable in the cage. The spool assembly is selectively positionable in sealing engagement with the sealing surface of the valve plate to define a sealing interface therebetween, and is movable between an inlet position defining a fluid intake path and an outlet position defining a fluid outtake path whereby the fluid is selectively diverted through the wellsite component. | 11-06-2014 |
20140352971 | SOLENOID-OPERATED VALVE - A solenoid-operated valve of the kind that is used in a subsea control pod comprises a valve assembly ( | 12-04-2014 |
20140352972 | SYSTEMS AND METHODS FOR PULLING SUBSEA STRUCTURES - A system for pulling a subsea structure includes an adapter configured to be mounted to an upper end of a subsea pile. In addition, the system includes an interface assembly fixably coupled to the adapter. The interface assembly includes a first channel configured to receive a flexible tension member and a first chuck disposed in the first channel. The tension assembly includes a second channel configured to receive the flexible tension member and a second chuck disposed in the second channel. Each chuck is configured to pivot about a horizontal axis between an unlocked position allowing the flexible tension member to move in a first axial direction and a locked position preventing the tension member from moving in a second axial direction that is opposite the first axial direction. | 12-04-2014 |
20140352973 | METHOD AND SYSTEM FOR STIMULATING FLUID FLOW IN AN UPWARDLY ORIENTED OILFIELD TUBULAR - A method for stimulating fluid flow in an upwardly oriented oilfield tubular ( | 12-04-2014 |
20140360729 | SUBSEA OR DOWNHOLE ELECTRICAL PENETRATOR - A subsea electrical device has a penetrator extending through a housing for the connection of a motor lead cable supplying electric power or electric signals. The penetrator has a glass or glass-ceramic body sealed to the housing. A connector, such as a pin connector, extends through the glass or glass-ceramic body. The motor lead cable connects to one end of the connector while the other end of the connector allows for the transfer of the electric power or electric signals to the components within the housing. The glass or glass-ceramic body withstands the high pressure and harsh environment of the subsea atmosphere, allowing for the long term us of the electrical device without need for replacement due to failure of the penetrator. | 12-11-2014 |
20140367112 | DEVICE FOR RECIRCULATING GREASE/SEALING OIL IN RISERS - A device for collecting used sealing fluids/grease being used as sealing and lubricating medium between two objects such as risers. | 12-18-2014 |
20150041142 | Vertical Oil Storage System and Its Method For Deepwater Drilling and Production - A vertical oil storage system includes an oil tank for storing oil and water, an oil caisson coupled to the top of the oil tank, a water caisson coupled to the bottom of the oil tank, a containment saucer positioned and floating substantially at the interface between the oil and the water stored in the oil tank, a water pipe extending from an upper water sump in the center well to the water caisson, a water passageway extending from the center well to the water caisson, and an oil pipe extending front the topside facility to the oil caisson. A corresponding method to displace water with oil and to separate oil from displaced water in the vertical oil storage system includes loading oil from a topside facility into an oil caisson via an oil pipe, offloading water from water caisson into an upper water sump in a center well via a water pipe, and offloading water from the center well is a water passageway and discharging it back to open water via a water outlet at the keel of the platform. | 02-12-2015 |
20150041143 | Apparatus For Controlling Injection Pressure In Offshore Enhanced Oil Recovery - An apparatus for controlling the injection pressure of an aqueous polymer solution in a subsea oil wellhead, includes a linear pressure reducer in the form of a tube connected in series to the main injection line that is capable of absorbing the majority of the pressure drop and a choke that is capable of being regulated in order to enable a pressure control between 0 and 10 bar. Also, a process of offshore enhanced oil recovery by injection of an aqueous polymer solution uses the apparatus. | 02-12-2015 |
20150075801 | MODULAR SUBSEA STRIPPER PACKER AND METHOD OF USING SAME - A stripper packer for sealing a tubular of a wellsite is provided. The stripper packer includes an extendable housing, a packer, and a sliding window. The extendable housing has a passage therethrough to receive the tubular, and includes a piston operatively connectable between an upper and a lower portion of the extendable housing for selective movement therebetween. The packer is positionable within the extendable housing and sealingly engageable with the tubular. The sliding window is slidably positionable in the passage of the extendable housing and engageable with the packer. The sliding window is movable with the piston in response to pressure whereby the packer is sealable with the tubing. | 03-19-2015 |
20150083429 | WELLBORE ANNULAR PRESSURE CONTROL SYSTEM AND METHOD USING GAS LIFT IN DRILLING FLUID RETURN LINE - A system and method include pumping drilling fluid through a drill string extended into a wellbore extending below the bottom of a body of water, out the bottom of the drill string and into the wellbore annulus. Fluid is discharged from the annulus into a riser and a discharge conduit. The riser is disposed above the top of the wellbore and extends to the water surface. The discharge conduit couples to the riser and includes a controllable fluid choke. A fluid return line is coupled to an outlet of the choke and extends to the water surface. Gas under pressure is pumped into the return line at a selected depth below the water surface. The controllable fluid choke may be operated to maintain a selected drilling fluid level in the riser, the selected fluid level being a selected distance below the water surface. | 03-26-2015 |
20150090459 | Apparatus and Methods for Clearing a Subsea Tubular - An embodiment of a tool for clearing a deposit within a fluid flowline, including a body having a central axis, a first end, a second end opposite the first end, and a radially outer surface extending axially from the first end of the second end. In addition, the tool includes a first energy element coupled to the first end, and an electrode extending radially from the radially outer surface of the body. The first energy element and the electrodes are each configured to emit energy to dissipate the deposit in the fluid flowline. | 04-02-2015 |
20150096758 | MANIFOLDS FOR PROVIDING HYDRAULIC FLUID TO A SUBSEA BLOWOUT PREVENTER AND RELATED METHODS - This disclosure includes manifolds, subsea valve modules, and related methods. Some manifolds and/or subsea valve modules include one or more inlets, each configured to receive hydraulic fluid from a fluid source, one or more outlets, each in selective fluid communication with at least one of the inlets, and one or more subsea valve assemblies, each configured to selectively control hydraulic fluid communication from at least one of the inlets to at least one of the outlets, where at least one of the outlets is configured to be in fluid communication with an actuation port of the hydraulically actuated device. | 04-09-2015 |
20150114655 | PREVENTION OF GAS HYDRATES FORMATION IN BOP FLUIDS IN DEEP WATER OPERATIONS - The present invention is directed to a method for preventing gas hydrates formation in BOP fluids in deep water well operations that includes the step of adding at least 28% glycol by volume to a BOP fluid, whereby the hydrate phase equilibrium line shifts to the point where the operating conditions will not form a hydrate. | 04-30-2015 |
20150136406 | Subsea Intervention Plug Pulling Device - A plug pulling device includes an elongated housing comprising a production tree connection interface, a shifting tool disposed within and along a substantial length the housing and comprising a distal end configured to couple to a tubing plug, and a seal disposed within the housing and formed around a portion of the shifting tool. The seal isolates a first portion of the housing from a second portion of the housing. The second portion of the housing is adjacent to the production tree connection interface. The shifting tool is configured to move partially in and out of the first portion of the housing when there is a pressure differential between the first portion of the housing and an environment external to the first portion of the housing. | 05-21-2015 |
20150136407 | ROTATING CONTROL DEVICE DOCKING STATION - A system and method is provided for converting a drilling rig between conventional hydrostatic pressure drilling and managed pressure drilling or underbalanced drilling using a docking station housing mounted on a marine riser or bell nipple. This docking station housing may be positioned above the surface of the water. When a removable rotating control device is remotely hydraulically latched with the docking station housing, the system and method allows for interactive lubrication and cooling of the rotating control device, as needed, along with a supply of fluid for use with active seals. | 05-21-2015 |
20150300130 | Assembly and Method for Subsea Hydrocarbon Gas Recovery - An assembly to recover hydrocarbon gas from a seabed comprises one or more self-propelled drilling devices that include hydrocarbon sensors and a sublimation mechanism to induce sublimation of crystallized hydrates into hydrocarbon gases. As the drilling device moves through the wellbore, hydrocarbon deposits are detected and the sublimation mechanism induces sublimation of the deposits to release hydrocarbon gases up through the formation to the seabed. A bladder is positioned atop the wellbore to capture the release hydrocarbon gas and transfer it to a surface vessel for collection. | 10-22-2015 |
20150306520 | Multiphase Separation System - The current disclosure relates to multiphase fluid separation via a multiphase separation system. The multiphase separation system is configured to feed a multiphase fluid into feed lines within the multiphase separation system, wherein the feed lines consist of an upper line, a middle line, and a lower line. The upper line is configured to flow a first stream substantially including oil into an oil section of a control volume. The middle line is configured to flow a second stream substantially including an oil/water emulsion into an oil/water emulsion section of the control volume. The lower line is configured to flow a third stream substantially including water into a water section of the control volume. The control volume is configured to adjust fluid flow rate at an outlet, wherein the oil section, the water section, and the oil/water emulsion section each commingle at different heights of the control volume. | 10-29-2015 |
20150308230 | SUBSEA PRODUCTION COOLER WITH GAS LIFT - A subsea production cooler module comprising: coiled tubing, wherein the coiled tubing comprises an inlet and an outlet; and gas lift injector positioned above the coiled tubing. | 10-29-2015 |
20150330157 | TELESCOPING JOINT WITH CONTROL LINE MANAGEMENT ASSEMBLY - A telescoping joint is provided with one or more control lines and is usable for landing a subsea tubing hanger. The telescoping joint can include an outer mandrel, an inner mandrel, and a control line. The inner mandrel can be releasably coupled to the outer mandrel when run in a wellbore of a subterranean formation. At least part of the inner mandrel can be in an area defined by the outer mandrel and can seal an inner area defined by the inner mandrel from an environment exterior to the outer mandrel. The control line can be exterior to an outer surface of the outer mandrel and coiled around at least part of the inner mandrel. | 11-19-2015 |
20160153248 | TRAVEL JOINT RELEASE DEVICES AND METHODS | 06-02-2016 |
20160160463 | Protecting a Stationary Vessel from Encroaching Ice - Techniques are provided for protecting a stationary vessel from encroaching ice. In an example, a system has a subsea mount disposed on a seafloor and a thruster disposed on the subsea mount under a water surface. The thruster is configured to destabilize a water column under the encroaching ice. | 06-09-2016 |
20190145198 | System and Methods for Controlled Mud Cap Drilling | 05-16-2019 |