Hydraulic control assembly for actuating a hydraulically controllable downhole device and method for use of same
AssigneeHalliburton Energy Services, Inc.
InventorMichael Wade Meaders
Life of this patent
Estimating the term…
Abstract
A hydraulic control assembly (80) for actuating a hydraulically controllable downhole device (100) comprises a hydraulic fluid source (82) located on a surface installation that supplies a low pressure hydraulic fluid, an umbilical assembly (88) coupled to the hydraulic fluid source (82) that provides a supply fluid passageway for the low pressure hydraulic fluid and a subsea intensifier (90) operably associated with a subsea wellhead. The subsea intensifier (90) is operable to convert the low pressure hydraulic fluid from the hydraulic fluid source (82) into a high pressure hydraulic fluid for actuating the hydraulically controllable downhole device (100).
Claims34
A hydraulic control assembly for actuating a hydraulically controllable downhole device comprising:
- a hydraulic fluid source located on a surface installation that supplies a low pressure hydraulic fluid;
- an umbilical assembly coupled to the hydraulic fluid source that provides a supply fluid passageway for the low pressure hydraulic fluid;
- and
- a subsea intensifier operably associated with the umbilical assembly, the subsea intensifier operable to convert the low pressure hydraulic fluid into a high pressure hydraulic fluid that actuates the hydraulically controllable downhole device.
A hydraulic control assembly for actuating a hydraulically controllable downhole device comprising:
- a hydraulic fluid source located on a surface installation that supplies a low pressure hydraulic supply fluid and a hydraulic power fluid;
- an umbilical assembly coupled to the hydraulic fluid source that provides a fluid passageway for the low pressure hydraulic fluid and the hydraulic power fluid;
- and
- a subsea intensifier operably associated with the umbilical assembly, the subsea intensifier having a hydraulic motor that is powered by the hydraulic power fluid and a hydraulic pump that is driven by the hydraulic motor, the hydraulic pump converts the low pressure hydraulic supply fluid into a high pressure hydraulic supply fluid to actuate the hydraulically controllable downhole device.
A hydraulic control assembly for actuating a hydraulically controllable downhole device comprising:
- a subsea hydraulic fluid source that supplies a low pressure hydraulic fluid;
- and
- a subsea intensifier operably associated with a subsea wellhead and in fluid communication with the hydraulic fluid source, the subsea intensifier operable to convert the low pressure hydraulic fluid from the hydraulic fluid source into a high pressure hydraulic fluid that actuates the hydraulically controllable downhole device.
A hydraulic control assembly for actuating a hydraulically controllable downhole device comprising:
- a hydraulic fluid source operably associated with a subsea wellhead that supplies a low pressure hydraulic supply fluid;
- and
- a subsea intensifier operably associated with the hydraulic fluid source, the subsea intensifier having a hydraulic pump that is driven by an electric motor operable to receive electrical power conveyed on an electrical power conduit of an umbilical assembly that couples the subsea intensifier to a surface installation, the hydraulic pump converts the low pressure hydraulic supply fluid from the hydraulic fluid source into a high pressure hydraulic supply fluid to actuate the hydraulically controllable downhole device.
A method of actuating a hydraulically controllable downhole device comprising the steps of:
- storing a hydraulic fluid in a reservoir located on a surface installation;
- pumping the hydraulic fluid at a first pressure from the reservoir through a supply fluid passageway of an umbilical assembly to a subsea intensifier;
- intensifying the pressure of the hydraulic fluid from the first pressure to a second pressure;
- and
- actuating the hydraulically controllable downhole device with the hydraulic fluid at the second pressure.
A method of actuating a hydraulically controllable downhole device comprising the steps of:
- storing a hydraulic fluid in a subsea hydraulic fluid reservoir at a first pressure;
- intensifying the pressure of the hydraulic fluid with a subsea intensifier that is operably associated with a subsea wellhead;
- and
- actuating the hydraulically controllable downhole device in response to the hydraulic fluid.
Dependencies are inferred from the claim text.