The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 21, 2020

Filed:

Jan. 18, 2016
Applicant:

Xtreme Well Technology Limited, Banchory, GB;

Inventor:

Peter Moyes, Banchory, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/06 (2006.01); E21B 34/14 (2006.01); E21B 23/00 (2006.01); E21B 34/06 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 23/06 (2013.01); E21B 23/00 (2013.01); E21B 34/06 (2013.01); E21B 34/14 (2013.01); E21B 2034/007 (2013.01);
Abstract

The invention provides an actuator assembly for a downhole tool and a method of use. The actuator assembly comprises an actuator device, which includes a housing and a piston element movable with respect to the housing. First and second fluid paths are configured to couple first and second sides of the piston element to at least one source of fluid pressure in a drive module, and an actuator member is configured to be coupled to a downhole device. The actuator member is movable between a first position and a second position to operate the downhole device in response to a force acting on the piston element. The actuator assembly comprises a pressure release mechanism which is operable to equalise pressure between the first and second fluid paths of the actuator device. The invention may be used in conjunction with a valve module which includes the pressure release mechanism, and the valve member preferably comprises a forward flow position, in which a first side of the piston element is pressurised to urge the piston element in a first direction, and a reverse flow position in which a second side of the piston element is pressurised to urge the piston element in a second direction, opposite the first direction. A preferred embodiment of the invention is setting tool incorporating the actuator assembly.


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