Michael J May

US Patent:

7905292, Mar 15, 2011

Filed:

Feb 6, 2009

Appl. No.:

12/366752

Inventors:

Clifford H. Beall - Broken Arrow OK, US
Darren E. Bane - Broken Arrow OK, US
Michael J. May - Broken Arrow OK, US
James T. Sloan - Broken Arrow OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 34/06

US Classification:

1663327, 166324

Abstract:

A pressure equalizing tool can be run into a downhole tool on wireline or coiled tubing preferably and temporarily secured before being actuated to separate two components in a downhole tool that are in a sealing relation but are configured to be temporarily movable so as to allow pressure equalization before the downhole component is actuated. Once pressure is equalized the equalizing tool is released, usually with an applied pick up force and the downhole tool being equalized as to differential pressure can be operated with the preexisting actuation parts that are on the downhole tool. In a preferred embodiment the downhole tool is a ball valve and the equalizing tool is temporarily secured to the ball valve housing to temporarily part the ball from the uphole seat to equalize an annular space around the ball with tubing pressure. The ball is allowed to go back to contact with the seat when the equalizing tool is released and removed from the tubing.

US Patent:

8011428, Sep 6, 2011

Filed:

Nov 25, 2008

Appl. No.:

12/277385

Inventors:

Thomas S. Myerley - Broken Arrow OK, US
Michael J. May - Broken Arrow OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 23/00
E21B 23/01

US Classification:

166209, 166217, 166382

Abstract:

Disclosed herein is a decelerating device. The device includes, a body movably engagable within a tubular, a mandrel longitudinally movably disposed at the body, and at least one deceleration element disposed at the body in operable communication with the mandrel such that longitudinal movement of the mandrel with respect to the body causes controlled radial movement of the at least one deceleration element to decelerate the decelerating device in relation to the downhole tubular.

US Patent:

8113286, Feb 14, 2012

Filed:

Mar 25, 2008

Appl. No.:

12/054809

Inventors:

Clifford H. Beall - Broken Arrow OK, US
Michael J. May - Broken Arrow OK, US
James T. Sloan - Broken Arrow OK, US
Andrew Haynes - Houston TX, US
Thad D. Andrews - Tulsa OK, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 34/14

US Classification:

1663323, 1663342, 166323

Abstract:

A ball type downhole barrier valve capable of bidirectional sealing features a ball rotating on its axis to open or close with control line pressure to an actuating rod piston assembly. The ball is also shiftable to a locked open position. A cage surrounds the ball and retains opposed seats to it. The cage is made from one piece and tangential holes are drilled and tapped before the piece is longitudinally split with a wire EDM cutting technique. Fasteners to rejoin the cut halves properly space them to the original one piece internal dimension. Auxiliary tools allow determination of spacing of internal components so that a desired spring preload on the seats against the ball can be achieved. Seals on the sleeves that form ball seats help prevent leakage due to ball distortion at high differential pressures when the valve is closed.

US Patent:

20110037004, Feb 17, 2011

Filed:

Aug 13, 2009

Appl. No.:

12/540931

Inventors:

Gary Lake - Houston TX, US
Michael J. May - Broken Arrow OK, US
Priyesh Ranjan - Houston TX, US
Douglas Murray - Magnolia TX, US
Michael Rainone - Palestine TX, US
Samuel Sackett - Frankston TX, US
Talbot Presley - Palestine TX, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

F16K 31/02
H02K 41/02

US Classification:

25112901, 310 1204

Abstract:

A linear motor activator for a downhole safety valve including a permanent magnet carrier; a plurality of permanent magnets mounted to the permanent magnet carrier; a coil carrier disposed in magnetic field proximity to the permanent magnet carrier; and a plurality of coils mounted to the coil carrier, one of the permanent magnet carrier and the coil carrier being movable relative to the other of the permanent magnet carrier and coil carrier, and being connected to a component of a downhole safety valve and method.

US Patent:

20120318525, Dec 20, 2012

Filed:

Jun 15, 2011

Appl. No.:

13/160736

Inventors:

Anthony S. Coghill - Tulsa OK, US
Dale W. Schubert - Collinsville OK, US
Lisa D. Crase - Broken Arrow OK, US
Thomas S. Myerley - Broken Arrow OK, US
Michael J. May - Broken Arrow OK, US

Assignee:

BAKER HUGHES INCORPORATED - Houston TX

International Classification:

E21B 34/06
F16K 27/00
E21B 34/00

US Classification:

166373, 1663323, 251366

Abstract:

A valving system includes, a tubular having a seat, and a body with a bore therethrough having a surface sealably engagable with the seat, the body being rotatable relative to the tubular between at least a first position, a second position and a third position, the first position occluding flow between an inside of the tubular and the bore the second position providing fluidic communication between the inside of the tubular and the bore via at least one cavity formed in the surface and a third position providing direct fluidic communication between the inside of the tubular and the bore