Halliburton Energy Services, Inc.

Robert Eugene Domann

Randy S Rosine

Larry Lance Austbo

Kenneth C Parks

Mickie James Theriot

Philippe Quero

Radovan Rolovic

Oluwatosin Ogundare

Harley Wayne Jones, Ii

Jeremy C Nicholson

Michael Stephen Oser

Roshan Joy Jacob

Eric Lynn Jantz

Charles Lynn Mouser

Konstantin Ermakov

A quick-disconnect multi-coupler assembly for disconnecting utility lines connecting well equipment to power sources. The utility lines may be hoses or electrical cables. The power sources may be pressurized fluid or electrical energy sources. The well equipment may be located on an offshore platform and the power sources may be located on a floating support vessel. A fixed mounting plate located on the floating support vessel may be connected to the power sources by vessel-side utility lines. A removable mounting plate may be connected to the well equipment by well-side utility lines, and can be releasably coupled to the fixed mounting plate to provide a pressurized fluid or electrical energy pathway from the power sources to the well equipment. Rapid disconnection of the well-side utility lines from the power sources may be performed by decoupling the mounting plates using a decoupling cylinder that can be activated from a remote location.

Remote disconnection of utility lines in offshore well operations

A system for controlling pressure applied in a well intervention operation using a physics-based model is provided. The system can include a stripper element that includes a pressure retention element for sealing a wellbore during an intervention operation that uses coiled tubing; a stripper circuit that includes a hydraulic actuator to apply a pressure to the pressure retention element; a processing device coupled to the hydraulic actuator that can receive, from the stripper circuit, a feedback signal. The processing device may receive a physical characteristic of a component and then determine, using data from the feedback signal and the physical characteristic, a minimum pressure level to contain wellhead pressure. The processing device may then output a command to cause the hydraulic actuator to change the pressure on the pressure retention element to be the minimum pressure level or within a pre-set deviation of the minimum pressure level.

Controlling surface pressure during well intervention

The disclosure provides a blowout preventer system including: a hydraulic circuit, a blowout preventer including a ram having an open port and a close port, a hydraulic fluid tank, a hydraulic fluid pump, and a control valve. The hydraulic circuit includes: a first accumulator, a first valve, and a second valve. The control valve is coupled to the open port, the close port, and the hydraulic fluid tank. The first accumulator is coupled to the control valve by way of the first valve and to the close port by way of the second valve. The first valve allows hydraulic fluid to flow from the control valve to the first accumulator but prevents hydraulic fluid from flowing back to the control valve. When the control valve is in the open position, the second valve is closed, and when the control valve is in the close position, the second valve is open.

Blowout preventer closing circuit

A coiled tubing system includes a coiled tubing unit with a coiled tubing string carried by the unit, the coiled tubing string having a stinger end; an injector support frame having an upper and lower ends; a coiled tubing injector disposed at the upper end of the support frame and engaging the coiled tubing string; and a loading device supported between the coiled tubing injector and the lower end of the frame, the loading device attached to the stinger end of the coiled tubing string. The system may include a riser tube disposed between the upper end of the frame and the loading device, coupling a housing of the loading device to a base of the coiled tubing injector, the coiled tubing string extending through the riser. The system may include a support device supporting the loading device, the support device pivotally supporting the loading device relative to the frame.

Coiled tubing injector test fixture

A hydraulic circuit and method for operating a gripping mechanism according to which fluid is passed from a source to the device while some of the fluid is passed to a valve that is adjustable to control the amount of fluid passed to it and therefore the amount of fluid passed to the device.

Hydraulic circuit and method for operating a gripping device

An apparatus and method for moving a tubing along a path, according to which the tubing is engaged by an outer chain which is driven to advance the tubing. The chain is adapted to be deflected radially in response to an increase in the diameter of the tubing, and a plate is compressed in response to the deflection of the chain to accommodate the variation in diameter.

Apparatus and method for injecting tubing in a well bore

A hydraulic circuit and method for operating a hydraulic device according to which fluid is passed from a source to the device while some of the fluid is passed to a valve that is adjustable to control the amount of fluid passed to it and therefore the amount of fluid passed to the device.

Hydraulic circuit and method for operating a sealing device

A coiled tubing injector apparatus for use in inserting coiled tubing into a well, temporarily suspending the coiled tubing, and removing the coiled tubing from the well is described. The apparatus includes a base with a pair of spaced-apart carriages extending upwardly therefrom. The base is part of a frame positioned above a wellhead. The carriages each have a gripper chain drive system rotatably mounted thereon and movable therewith. An actuation and linkage system allows the carriages to move toward and away from one another in a lateral or transverse direction with respect to the superstructure and the base. Thus, the gripper chain systems comprises gripper chains that can be engaged or disengaged from the coiled tubing extending through the apparatus. A wetting fluid basin is positioned below the gripper chains, and support guides engage the coiled tubing below the gripper chains to prevent buckling of the coiled tubing. The gripper chain drive system includes idler sprockets mounted on an idler sprocket shaft. The position of first and second ends of the idler sprocket shaft are monitored, and may be adjusted to maintain a parallel relationship with a drive sprocket shaft on which are mounted drive sprockets supporting the gripper chain.

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Duncan, OK, United States of America

Robert Eugene Domann