Jason C Stingerie

US Patent:

20130327516, Dec 12, 2013

Filed:

Jun 7, 2012

Appl. No.:

13/490851

Inventors:

Jason C. Stingerie - Houston TX, US
Louis M. Gambertoglio - The Woodlands TX, US
David L. Nevels - Spring TX, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

E21B 43/10
E21B 33/1295
E21B 34/14

US Classification:

166191, 1663321, 166208

Abstract:

An actuator for a subterranean tool is releasably retained by a collet. The actuation system features opposing actuation pistons with ports communicating to the tubing. The spaced ports are sequentially straddled for initial setting and a subsequent release using a predetermined applied pressure. The applied pressure overcomes the retaining force of the collet and actuates a one of two opposed pistons to set the tool, which is preferably a liner hanger. Upon shifting the actuation tool to communication to another port leading to an actuating piston pushing in another direction with applied pressure releases the tool and re-latches a retaining collet. The tool can be set, released and repositioned for another cycle in the same trip in the hole.

US Patent:

20130092369, Apr 18, 2013

Filed:

Oct 13, 2011

Appl. No.:

13/272976

Inventors:

Jason C. Stingerie - Houston TX, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

E21B 43/10

US Classification:

166208

Abstract:

A liner hanger is locked for run in to prevent accidental setting using a trapped collet assembly. The liner is internally pressurized to push a ring from which the collet extends. The collet heads leave a mandrel groove and compress a return spring while at the same time shouldering against an outer assembly that ramps the slips out on cones for a grip of the surrounding casing. Weight is released and the slips prevent the assembly attached to them from moving to hold the return spring compressed. Picking up weight releases the load on the slips of the hanger and allows the spring to retract the slips and return the collet assembly to the run in position in an exterior mandrel groove. This can be used with a relative rotation feature incorporated into the liner hanger to allow liner rotation during cementing, if desired.