公开(公告)号：GB2394738B

公开(公告)日：2007-04-04

申请号：GB0324939

申请日：2003-10-24

Applicant: WEATHERFORD LAMB

Inventor： BOURGOYNE DARRYL A ,  HANNEGAN DON M ,  BAILEY THOMAS F ,  CHAMBERS JAMES W ,  WILSON TIMOTHY L

IPC: E21B33/08 ,  E21B21/00 ,  E21B21/08

Abstract: A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing. The rotating control head assembly is sealed with the subsea housing when the holding member engages the internal formation. An extendible portion of the holding member assembly extrudes an elastomer between an upper portion and a lower portion of the internal housing to seal the rotating control head assembly with the subsea housing. Pressure relief mechanisms release excess pressure in the subsea housing and a pressure compensation mechanism pressurize bearings in the bearing assembly at a predetermined pressure.

公开(公告)号：GB2397838B

公开(公告)日：2006-05-17

申请号：GB0407509

申请日：2002-10-11

Applicant: WEATHERFORD LAMB

Inventor： BAILEY THOMAS ,  WILSON TIMOTHY L ,  NERO MICHAEL

IPC: E21B31/107 ,  E21B7/06 ,  E21B31/113 ,  E21B47/12

Abstract: The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel disposed in the body and movable in relation to the body. A conducive wire runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length.

公开(公告)号：GB2397838A

公开(公告)日：2004-08-04

申请号：GB0407509

申请日：2002-10-11

Applicant: WEATHERFORD LAMB

Inventor： BAILEY THOMAS ,  WILSON TIMOTHY L ,  NERO MICHAEL

IPC: E21B7/06 ,  E21B31/107 ,  E21B31/113 ,  E21B47/12

Abstract: The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel (110) disposed in the body and movable in relation to the body. A conducive wire (135) runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length.

公开(公告)号：NO996416A

公开(公告)日：2000-03-10

申请号：NO996416

申请日：1999-12-22

Applicant: WEATHERFORD LAMB

Inventor： WILSON TIMOTHY L

IPC: E21B31/113 ,  E21B4/14

CPC classification number: E21B31/1135

公开(公告)号：NO996416D0

公开(公告)日：1999-12-22

申请号：NO996416

申请日：1999-12-22

Applicant: WEATHERFORD LAMB

Inventor： WILSON TIMOTHY L

IPC: E21B31/113 ,  E21B

公开(公告)号：CA2307184A1

公开(公告)日：1999-01-28

申请号：CA2307184

申请日：1998-06-02

Applicant: WEATHERFORD LAMB

Inventor： WILSON TIMOTHY L

IPC: E21B31/113

Abstract: A jar up, bump down hydraulic drilling jar is disclosed. A hydraulic tripping valve (46) arrangement permits the storage of large amounts of static force before releasing a hammer (56) to strike an anvil surface (58) with substantial force. The hammer (56) is positioned on the mandrel (8) and interacts with the anvil surface (58) in the housing (10) to deliver upward jarring forces, to the drill string. During the downward jarring movement, the tripping valve (46) is opened to prevent pressure buildup and accidental jarring; thus, a single acting drilling jar is formed.