公开(公告)号：US11448030B2

公开(公告)日：2022-09-20

申请号：US16895048

申请日：2020-06-08

申请人： Oceaneering International, Inc.

发明人： Robert L. Ewen ,  Harris Akhtar Iqbal

IPC分类号： E21B33/038 ,  E21B33/076 ,  E21B43/013 ,  E21B19/00 ,  E21B15/00 ,  E21B33/035 ,  E21B19/22

摘要： Dynamic/static sealing of coiled tubing subsea for pipeline and well access with hydrostatic conditions up to 10,000 feet water depth while maintaining wellbore or pipeline pressures up to 10,000 psi may be achieved using a system comprising a subsea fluid source which utilizes a riserless open water coiled tubing system and an open water coiled tubing sealer to control hydrostatic pressure and fluid container pressures. This comprises an upper well control assembly having a first geometric orientation and a lower well control assembly in fluid communication with the upper well control assembly aligned in a second geometric orientation substantially inverted to the first orientation; a quick disconnect connector in fluid communication with the upper well control assembly; one or more electrically powered subsea assist jacks operatively connected to the quick disconnect connector; a controller operatively in communication with the electrically powered subsea assist jacks; and a power connector operatively in communication with the source of electrical power, the controller, and the electrically powered subsea assist jack.

公开(公告)号：US20220268133A1

公开(公告)日：2022-08-25

申请号：US17597931

申请日：2019-08-02

申请人： FMC Technologies, Inc

发明人： Andre Faisca ,  Leonardo Bernardo ,  Jorge Bonfim ,  Renato Bernato ,  Guiherme Moura ,  Huei Lai ,  Rafael Galvao

IPC分类号： E21B43/017 ,  E21B41/00 ,  E21B43/013

摘要： A valve block may be provided with a plurality of flow bores within a body the valve block. In addition, valve block may have a plurality of openings opening at an outer surface of the valve block and in fluid communication with the plurality of flow bores. Further, a blind plug may be within at least one of the openings. The blind may include a cap coupled to an inner surface of the at least one opening and a plug having a first end face in contact with the cap and a second end face extending into the flow bore. Furthermore, the blind plug may seal the at least one opening from a surrounding environment.

公开(公告)号：US20220034200A1

公开(公告)日：2022-02-03

申请号：US17275596

申请日：2019-09-10

申请人： PETRÓLEO BRASILEIRO S.A. - PETROBRAS

发明人： Roberto Rodrigues ,  Carlos Alberto Bandeira Ribeiro ,  Daniel Monteiro Pimentel ,  Everton Da Rocha Nascimento ,  Renato De Freitas Soares

IPC分类号： E21B43/013 ,  E21B33/038 ,  F16L1/20 ,  E21B37/06 ,  E21B43/017 ,  F16L1/26

摘要： The present invention provides a nonresident system for depressurizing subsea apparatus and lines comprising a depressurizing tool (5) adapted for being coupled to an ROV interface (6) of a subsea apparatus, wherein the depressurizing tool (5) is coupled to an ROV (4), wherein: the ROV interface (6) comprises a first pipeline (6a) for connection to a first hydrocarbon transport line (8), a second pipeline (6b) for connection to second hydrocarbon transport line (9), and a connection mandrel (6d); and the depressurizing tool (5) comprises a suction line (5a) adapted for being connected to the first pipeline (6a) for connection to the first hydrocarbon transport line; a discharge line (5b) adapted for being connected to the second pipeline (6b) for connection to the second hydrocarbon transport line; a pump (5c); and a connector (5d) adapted for being connected to the connection mandrel (6d) of the ROV interface (6). A method is also provided for depressurizing subsea apparatus and lines, comprising the steps of: removing a blind cap (15) from an ROV interface (6) with aid of an ROV (4); coupling a depressurizing tool (5) to the ROV interface (6) of a subsea apparatus (10); suction and removal of fluid from a first hydrocarbon transport line, wherein the first hydrocarbon transport line comprises hydrate formation; and pressurizing and reinjecting the fluid into a second hydrocarbon transport line.

公开(公告)号：US11091990B2

公开(公告)日：2021-08-17

申请号：US16753988

申请日：2018-10-05

申请人： PETRÓLEO BRASILEIRO S.A.—PETROBRAS

发明人： Roberto Rodrigues ,  Carlos Alberto Bandeira Ribeiro Cardoso

IPC分类号： E21B43/013 ,  E21B43/16

摘要： A system for pressurization of an underwater oil reservoir by independent injection of water and gas comprise: at least first and second underwater injection wells, wherein at least one of the first and second underwater injection wells is linked to a production unit by means of an individual underwater line; and at least two jumpers: a first jumper hydraulically connecting a wet Christmas tree of the first underwater injection well to a wet Christmas tree of the second underwater injection well, and a second jumper hydraulically the wet Christmas tree of the second underwater injection well to the wet Christmas tree of the first underwater injection well.

公开(公告)号：US20210189841A1

公开(公告)日：2021-06-24

申请号：US16757351

申请日：2018-09-21

申请人： FMC Kongsberg Subsea AS

发明人： Stein Rune Rasmussen

IPC分类号： E21B43/013 ,  E21B33/038 ,  E21B43/017

摘要： Subsea system (100) and method of installing the subsea system (100), the method comprising the steps of: —preparing a first foundation (1′) comprising at least a first dedicated position for receiving a first subsea station (3′, 13′), —providing the first foundation (1′) with at least a first guide system (4′), —installing the first foundation (1′) at a subsea location, —preparing at least a first subsea station (3′, 13′) comprising a first flow module (5′) for connection with a pipeline (6), —installing the at least first subsea station (3′, 13′) with the first flow module (5′) in the first dedicated position on the first foundation (1′), —preparing a pipeline (6) and providing the pipeline (6) with at least a first T-connection (7′) at a determined calculated position corresponding to the first dedicated position on the first foundation (1′), —installing the pipeline (6) and allowing the pipeline (6) to rest on the first guide system (4′) on the first foundation (1′) such that the first T-connection (7′) is arranged at or in the proximity of the first dedicated position on the first foundation (1′), —preparing a first piece of pipe (8′) and connecting the first T-connection (7′) of the pipeline (6) with the first flow module (5′) on the first subsea station (3′, 13′) using the first piece of pipe (8′).

公开(公告)号：US11021924B2

公开(公告)日：2021-06-01

申请号：US16305697

申请日：2016-05-31

申请人： FMC Technologies, Inc.

发明人： Paul L. Riley ,  Ramu Valliappan Manickam ,  Wei Soung Tan ,  May-Ling Rachel Ho ,  Guoxiang Calvin Wu

IPC分类号： E21B33/035 ,  E21B34/04 ,  E21B33/043 ,  E21B33/064 ,  E21B33/076 ,  E21B43/013

摘要： An assembly includes an inlet hub (112) coupled to a first flow passage (124) located within a flow control module, the first flow passage having a first flow bore, a flow meter (144) associated with the first flow bore and positioned for top-down fluid flow, a choke (109) disposed in a second flow passage (136) having a second flow bore, and an outlet hub (119) coupled to a distal end of the second flow passage. A system includes a flow control module assembly (902) having an inlet (912) and at least two outlets (914, 916), a main line (920) in fluid communication with the inlet, a first branch line (922) coupled to the main line and to a first outlet (916) of the at least two outlets, and a second branch line (924) coupled to the main line and to a second outlet (914) of the at least two outlets, and a tie-in connector (918) coupled to the inlet of the flow control module assembly.

公开(公告)号：US11015411B2

公开(公告)日：2021-05-25

申请号：US16708017

申请日：2019-12-09

申请人： Marlon J. Tesla

发明人： Marlon J. Tesla

IPC分类号： E21B33/035 ,  E21B33/038 ,  E21B34/16 ,  E21B43/013 ,  E21B41/00 ,  E21B34/04

摘要： A retrievable and retrofittable subsea hydraulic dump valve assembly for a subsea oil and gas production system including at least one hydraulic selector valve including a solenoid and a spring. The hydraulic selector valve converts a first hydraulic pressure supply line into a primary hydraulic pressure supply line and a second hydraulic pressure supply line into a pilot line and a backup hydraulic pressure supply line. In a first operating configuration the hydraulic selector valve channels a first flow of hydraulic fluid from the first hydraulic pressure supply line to the critical control valve actuators to maintain the critical control valve actuators in the open configuration. In a second operating configuration the hydraulic selector valve channels the flow of hydraulic fluid to the subsea environment at a local venting location to reconfigure the critical control valve actuators into a closed configuration.

公开(公告)号：US10968707B2

公开(公告)日：2021-04-06

申请号：US15767331

申请日：2016-08-23

申请人： Aker Solutions AS

发明人： Anders Billington ,  Neil Ryan ,  Alexander Paul Lazell ,  Jan Herland ,  Edin Pita

IPC分类号： E21B19/00 ,  E21B43/01 ,  E21B19/24 ,  E21B41/00 ,  E21B43/013

摘要： An offshore methane hydrate production assembly (1), having a tubing (41) extending into a subsea well (5) that extends down to a methane hydrate formation (7) below the seabed (3). A submersible pump (45) is arranged in the tubing (41). A methane conduit (35,35) extends down from a surface installation (49). A well control package (15) landed on a wellhead (13) is positioned at the upper end of the subsea well (5). Moreover, an emergency disconnection package (25) is arranged between the methane conduit (35,135) and the well control package (15). The tubing (41) is suspended from the well control package (15). Other aspects of the invention are also disclosed.

公开(公告)号：US20210054713A1

公开(公告)日：2021-02-25

申请号：US16979079

申请日：2019-04-18

申请人： Enpro Subsea Limited

发明人： Ian Donald ,  John Reid ,  Craig McDonald

IPC分类号： E21B33/076 ,  E21B37/06 ,  E21B43/013 ,  E21B47/07 ,  E21B47/001

摘要： The invention provides an apparatus for introducing a fluid into a subsea production flow system, a system and a method of use. The apparatus comprises a first flow path through the apparatus for fluidly coupling a subsea well to a subsea production flow system and an inlet for receiving a fluid. A second flow path fluidly connects the inlet and the subsea production flow system. A valve is operable to control the flow of the fluid through the inlet to the subsea production flow system. In one embodiment, the invention provides an apparatus for preventing or reducing flow of a first treatment chemical into a subsea production flow system, a system, and a method of use. In an alternative embodiment, the invention provides an apparatus for injecting a gas into a subsea production flow system, a system, and a method of use.

公开(公告)号：US10914125B2

公开(公告)日：2021-02-09

申请号：US15885010

申请日：2018-01-31

申请人： Mitchell Z. Dziekonski

发明人： Mitchell Z. Dziekonski

IPC分类号： E21B17/01 ,  E21B43/013 ,  E21B33/03 ,  E21B33/038 ,  E21B17/06

摘要： A riser for a subsea well comprises a first riser section that may be similar to conventional risers in design and material specifications. A second riser section comprises a passive fracture section that is specifically designed to shear or fracture under design conditions, such as extreme events (e.g., extreme weather or waves, loss of control of a rig or vessel, a rig or vessel moving from a desired position). The passive fracture section is designed to fracture first to prevent or minimize damage to other well equipment, such as at the seabed.