Abstract: A subsea well intervention method implemented on a well (200) from a floating vessel (100), said floating vessel not comprising a derrick, the method comprising a step of connecting a power line (207) directly between a remotely operated vehicle (206) and the blowout preventer module (202) for powering the blowout preventer module, the remotely operated vehicle (206) being connected to a control unit (107) located on the floating vessel via a remotely operated vehicle umbilical (106).

Abstract: A tubing hanger assembly is provided which includes an annular tubing hanger body, a lockdown feature, an annular load member positioned on the body below the lockdown feature and rotatable relative to the body, and an annular load shoulder axially displaceable relative to the body. The load shoulder is associated with the load member such that in a first rotational position of the load member the load shoulder is spaced a first axial distance from the lockdown feature, and in a second rotational position of the load member the load shoulder is spaced a second axial distance from the lockdown feature, the second distance being greater than the first distance.

Abstract: A choke includes a cage having a plurality of openings extending therethrough, a first fluid port and a second fluid port, the openings in the cage fluidly interposed between the first and second fluid ports, and a selectively positionable blocking member positioned with respect to the openings to selectively overlie all of a portion of the openings, wherein the surface of the opening extending through the cage are a single crystal material. The single crystal material may be provided as an insert, having an opening therethrough, secured in position with respect to the cage.

Abstract: A valve assembly for integration within a wellbore string disposed within a subterranean reservoir is provided. The valve assembly includes a valve housing having one or more injection ports for establishing fluid communication between a central passage and the reservoir. The valve assembly includes a valve sleeve operatively mounted within the valve housing and comprising a fluid channel adapted to establish fluid communication between the central passage and the injection ports, and configured to create a fluid flowrate restriction. The valve assembly has a flow adjuster connectable to the valve sleeve, and is selectively arranged to align an opening with the fluid channel and allow fluid to flow from the fluid channel through the opening to the injection port, wherein connecting the flow adjuster to the valve sleeve defines a flow length of the fluid channel to adjust the fluid restriction created by the fluid channel.

Abstract: A power tong including a rotary gripping apparatus having a rotary base having a first jaw and at least one rotary arm movable relative to the rotary base between an open position and a closed position, the at least one rotary arm having a second jaw. A gap is present between the rotary base and the at least one rotary arm for receiving the tubular when the at least one rotary arm is in the open position. The gap is closed when the at least one rotary arm is in the closed position.

Abstract: A casing roller apparatus including an actuation apparatus for facilitating operation of the casing roller apparatus and an engagement apparatus for securely engaging a unit of casing to permit an oilfield worker to roll the unit of casing. The casing roller apparatus is used in a method of engaging a unit of casing with the casing roller apparatus and rolling the unit of casing from a first location to a second location.

Abstract: A sealing arrangement for an oil and/or gas well, including a rotation portion and a sealing portion. Rotation of the rotation portion causes the sealing portion to engage a surface of the oil and/or gas well so as to substantially form a seal therebetween.

Abstract: An apparatus includes an outer structure body having an inner surface defining a cavity and an inner structure body rotatably supported within the cavity. The inner structure body has an outer surface in opposing relation to the inner surface and a central bore. Movable elements are positioned along the inner surface and movably coupled to the outer structure body. Ball elements are positioned along the outer surface and coupled to the inner structure body for movement with the inner structure body. The ball elements releasably contact the movable elements and impart motion to the movable elements in response to relative motion between the inner structure body and the outer structure body. Energy harvesters are positioned to generate electrical charges based on piezoelectric effect or magnetostrictive effect when motion is imparted to the movable elements by the ball elements.

Abstract: A downhole tool for transmitting rotation to a casing string includes a tool body having a bore extending from a first end to a second end. The downhole tool also includes a cam positioned within the tool body, the cam being axially translatable along an axis of the bore. The downhole tool further includes a recess, formed in an outer diameter of the cam. The downhole tool includes a locking mechanism, positioned at least partially within the tool body. The locking mechanism includes a tool key. The locking mechanism also includes a biasing member, the biasing member driving the tool key toward the retracted position.

Abstract: Sensor systems for sucker rod pump systems and gear rod rotator systems may include one or more sensor modules comprising a sensor including at least one of a position sensor, a temperature sensor, a pressure sensor, or a vibration sensor for detecting a characteristic related to at least one component of the sucker rod pump systems or the gear rod rotator system.

Abstract: A downhole sealant injection system includes a first casing configured to be positioned in a wellbore and a second casing configured to be positioned in the wellbore within the first casing. Cement at least partially fills an annulus between the interior of the first casing and the exterior of the second casing. A first sealant injection tool is configured to be attached to the exterior of the second casing, and is positioned at a downhole location and within an annulus between the interior of the first casing and the exterior of the second casing. The sealant injection tool includes a plurality of nozzles configured to inject sealant into voids within the cement in the annulus between the interior of the first casing and the exterior of the second casing.

Abstract: The invention relates to a gate valve assembly (20) for use in a subsea workover system comprising: —a valve block (22) having a flow path (21c); —valve seats (33, 34) located within the valve block (22) around a periphery of the flow path (21c), —a gate valve member (40) which is moveable across the flow path (21c) between a first position in which the flow path (21c) is open and a second position in which the flow path (21c) is closed; —said gate valve member (40) comprising a first portion (31) surrounding an opening (32) adapted to mate with the flow path (21c) when the gate valve member (40) is in the first position, said first portion (31) is provided with a cutting member (30) arranged on the periphery of the first portion (31) towards the opening (32).

Abstract: A tubing rotator and a drive therefor. The tubing rotator includes an input shaft to a tubing rotator gear; an electric motor including an output shaft; and a plurality of worm drives arranged in series and configured to (i) receive input from the electric motor and (ii) output torque to the input shaft of the tubing rotator. The worm drives may be identical speed reducers, such as with an input to output reduction ratio of from 25:1 to 40:1.

Abstract: A system for hydrocarbon production comprising a host for receiving produced hydrocarbon; an offshore hydrocarbon production facility comprising: a production wellhead for connection to a subsea hydrocarbon reservoir; a production platform configured to receive produced fluid from the wellhead and being in fluid communication with the host via a long distance pipeline wherein the wellhead is local to the production platform, and the production platform is configured to process the produced fluid to provide a semi-stable oil product suitable for exporting along the long distance pipeline to the host; wherein the host is configured to store the semi-stable oil product.

Abstract: A downhole tool for cleaning and sealing a wellbore includes a wash tool configured at a downhole end of the downhole tool to generate pulses of a first fluid at a first frequency and a first pressure for washing a target interval of a wellbore. The downhole tool further includes a plugging tool configured uphole or downhole from the wash tool to generate pulses of a second fluid at a second frequency and a second pressure for depositing a sealing plug at the target interval of the wellbore. The second fluid has a higher viscosity than the first fluid, the second frequency is lower than the first frequency, and the second pressure is higher than the first pressure.

Abstract: Described is a flow control device comprising a body locatable with a tubular and a flow regulator, housed within the body. The flow regulator defines a flow path through the body to accommodate flow between internal and external locations of a tubular in use. The flow regulator comprises a valve arrangement forming part of the flow path, and a biasing mechanism configured to urge the valve arrangement towards an open configuration from a restricted configuration in which fluid flow though the flow path is restricted. The biasing mechanism and the flow path through the flow control device are configured such that a differential pressure acting across the flow regulator, in excess of a particular threshold, moves the valve arrangement from the open configuration towards the restricted configuration in order to limit flow through the flow control device.

Abstract: A wellhead assembly includes a wellhead housing; a tubing hanger, plug, back pressure valve, two-way check valve, BOP test plug, temporary abandonment plug, or other device; and a torque ring. The wellhead housing includes an inner bore. The wellhead housing has one or more mating grooves formed on an inner wall of the wellhead housing. The tubing hanger, plug, back pressure valve, two-way check valve, BOP test plug, temporary abandonment plug, or other device is positioned within the inner bore of the wellhead housing. The torque ring is positioned within a slot formed in the tubing hanger or other device. The torque ring includes a protrusion extending beyond the tubing hanger and into the mating groove.

Abstract: A drilling rig includes a rig component, an actuator coupled to the rig component, an electric power storage device coupled to the actuator and configured to cause the actuator to actuate. The actuator, by actuating, may perform a safety function in the rig component. The rig also includes a renewable power generator coupled to the electric power storage device and configured to supply at least some of the electric current to the electric power storage device that is supplied to the actuator.

Abstract: A vibration generator (9) for a drilling installation comprises a housing (16), at least one rotation body (17), a suspension (24) by means of which the rotation body is suspended rotatably within the housing, the mass centre of the rotation body (17) being eccentric with respect to the rotation axis of the suspension, and a drive (18) for rotating the rotation body. The housing (16) holds a fluid (15) which is in contact with the rotation body (17) whereby relative rotation between the rotation body and the fluid generates a flow resistance and in that the rotation body comprises flow resistance reduction means (25).

Abstract: A polished rod elevator has a top lift platform defining a polished rod passage and a mouth to laterally receive a polished rod into the polished rod passage; a plurality of linear actuators depending below the top lift platform and radially spaced from an axis of the polished rod passage to define a production tree receiving gap; and a plurality of arcuate wellhead flange mounting base plates connected to base ends of the plurality of linear actuators. Related methods of use and kits are discussed.