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Downhole Valve Actuation Methods and Apparatus

a technology of valve actuation and downhole valve, which is applied in the direction of drilling pipes, drilling casings, and accessories for wellbores/wells, etc., can solve the problems of affecting the operation efficiency of the pump

Inactive Publication Date: 2009-12-10
BJ SERVICES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]In accordance with the present disclosure, some embodiments involve an apparatus useful for shifting a shiftable device between at least first and second positions. The shiftable device is anchored in a subterranean well. The apparatus includes a housing insertable into and out of the well without disturbing the location of the shiftable device within the well. A hydraulically-driven piston is disposed within the housing. At least two hydraulic control lines are fluidly coupled to the housing and capable of providing hydraulic pressure from the surface to the housing to cause the piston to move up and down within the housing. An engagement arm extends from the piston and is releasably engageable with the shiftable device. The engagement arm moves up and down with the piston and is capable of mechanically shifting the shiftable device between at least first and second positions without requiring the use of either a rig or a slick line. The piston and engagement arm may thus be hydraulically-actuated to selectively remotely shift the shiftable member between positions.

Problems solved by technology

However, these pumps typically have a limited useful life-span as compared to the producing life of the well, so operations must be interrupted to replace the pump.
This process, which often requires the use of a rig or other equipment, may be time consuming and costly.

Method used

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  • Downhole Valve Actuation Methods and Apparatus
  • Downhole Valve Actuation Methods and Apparatus
  • Downhole Valve Actuation Methods and Apparatus

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Embodiment Construction

[0026]Characteristics and advantages of the present disclosure and additional features and benefits will be readily apparent to those skilled in the art upon consideration of the following detailed description of exemplary embodiments of the present disclosure and referring to the accompanying figures. It should be understood that the description herein and appended drawings, being of example embodiments, are not intended to limit the appended claims or claims of any patent or patent application claiming priority hereto. On the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the claims. Many changes may be made to the particular embodiments and details disclosed herein without departing from such spirit and scope.

[0027]In showing and describing preferred embodiments, common or similar elements are referenced in the appended figures with like or identical reference numerals or are apparent from the figures and...

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PUM

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Abstract

In some embodiments a method of shifting a downhole-located device between positions with an actuator includes inserting the actuator into the well, engaging the actuator with the shiftable device and actuating the actuator to shift the shiftable device between positions.

Description

[0001]This application claims priority to U.S. provisional patent application Ser. No. 61 / 058,908 filed Jun. 4, 2008, entitled “Remote Hydraulic Shifting Apparatus, Systems and Methods”, which is hereby incorporated by reference herein in its entirety.FIELD OF THE INVENTION[0002]The present disclosure relates generally to downhole valves and other devices that are movable between positions and, more particularly, to selectively remotely shifting such valves or other devices.BACKGROUND OF THE INVENTION[0003]In hydrocarbon recovery operations in subterranean wells, it is often desirable to selectively shift a valve or other device between positions. For example, there are instances when it is necessary or desirable to selectively close a downhole device to isolate the well, such as to remove, repair or replace equipment. Likewise, there are occasions when it is necessary to shift open the downhole device, such as to allow the recovery of produced fluids.[0004]In many applications, it ...

Claims

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Application Information

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IPC IPC(8): E21B34/06E21B23/08E21B23/00E21B34/14E21B23/04E21B34/10E21B34/16
CPCE21B23/00E21B41/00E21B23/04
Inventor TURNER, DEWAYNE MCCOYTURICK, DANIEL JAMESWALKER, DAVID JOSEPHPINEDA, FRANCISCO
Owner BJ SERVICES CO