发明名称 |
AN APPARATUS FOR FACILITATING THE CONNECTION OF TUBULARS USING A TOP DRIVE |
摘要 |
An apparatus for facilitating the connection of tubulars using a top drive, which apparatus comprises a body (2; 102) connectable to said top drive, said body (2; 102) comprising at least one gripping element (5; 105) radially displaceable by hydraulic or pneumatic fluid to drivingly engage said tubular (30; 110) to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
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申请公布号 |
CA2304664(A1) |
申请公布日期 |
2000.02.03 |
申请号 |
CA19992304664 |
申请日期 |
1999.07.22 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
PIETRAS, BERND-GEORG;APPLETON, ROBERT-PATRICK |
分类号 |
E21B;E21B19/06;E21B19/16;E21B23/04;E21B31/03;E21B33/126;E21B43/10;(IPC1-7):E21B19/16 |
主分类号 |
E21B |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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