FIG. 1 is a perspective view of a first side and a first end of swivel body according to the present invention.
FIG. 2 is a perspective view of a second side opposite the first side of FIG. 1 and a second end opposite the first end of FIG. 1.
FIG. 3 is a bottom view of the swivel body of FIG. 1; and,
FIG. 4 is a top view of the swivel body of FIG. 1.
| Patent |
Priority |
Assignee |
Title |
| 4010600, |
Apr 16 1975 |
The Kendall Company |
Retipped top-drive filling spindles |
| 4115911, |
Apr 16 1975 |
The Kendall Company |
Method of making retipped top-drive filling spindles |
| 4187920, |
Nov 23 1977 |
Tri-State Oil Tool Industries, Inc. |
Enlarged bore hole drilling method and apparatus |
| 4205423, |
Apr 16 1975 |
The Kendall Company |
Method of retipping top-drive filling spindles |
| 4219087, |
Nov 23 1977 |
Tri State Oil Tool Industries, Inc. |
Enlarged bore hole drilling method |
| 4421179, |
Jan 23 1981 |
VARCO I P, INC |
Top drive well drilling apparatus |
| 4449596, |
Aug 03 1982 |
VARCO I P, INC |
Drilling of wells with top drive unit |
| 4458768, |
Jan 23 1981 |
VARCO INTERNATIONAL, INC , A CA CORP |
Top drive well drilling apparatus |
| 4529045, |
Mar 26 1984 |
VARCO INTERNATIONAL, INC , A CA CORP |
Top drive drilling unit with rotatable pipe support |
| 4589503, |
Apr 16 1984 |
HUGHES TOOL COMPANY-USA, A DE CORP |
Top drive drilling apparatus with improved wrench assembly |
| 4605077, |
Dec 04 1984 |
VARCO I P, INC |
Top drive drilling systems |
| 4753300, |
Oct 03 1984 |
Triten Corporation |
Hydraulic top drive for wells |
| 4759239, |
Jun 29 1984 |
HUGHES TOOL COMPANY-USA, A DE CORP |
Wrench assembly for a top drive sub |
| 4793422, |
Mar 16 1988 |
Hughes Tool Company - USA |
Articulated elevator links for top drive drill rig |
| 4800968, |
Sep 22 1987 |
Triten Corporation |
Well apparatus with tubular elevator tilt and indexing apparatus and methods of their use |
| 4813493, |
Apr 14 1987 |
TRITEN CORPORATION, 5915 BRITTMORE ROAD, HOUSTON, TEXAS 77041 A CORP OF TEXAS |
Hydraulic top drive for wells |
| 4854383, |
Sep 27 1988 |
TEXAS IRON WORKS, INC , A CORP OF TEXAS |
Manifold arrangement for use with a top drive power unit |
| 4865135, |
May 20 1988 |
HUGHES TOOL COMPANY - USA, P O BOX 2539, HOUSTON, TEXAS 77252, A CORP OF DE |
Top drive torque reactor |
| 4878546, |
Feb 12 1988 |
Triten Corporation |
Self-aligning top drive |
| 5038871, |
Jun 13 1990 |
NATIONAL-OILWELL, L P |
Apparatus for supporting a direct drive drilling unit in a position offset from the centerline of a well |
| 5107940, |
Dec 14 1990 |
Hydratech; HYDRATECHNOLOGY, INC , D B A HYDRATECH, A CORP OF TX |
Top drive torque restraint system |
| 5236035, |
Feb 13 1992 |
Halliburton Company |
Swivel cementing head with manifold assembly |
| 5255751, |
Nov 07 1991 |
FORUM US, INC |
Oilfield make-up and breakout tool for top drive drilling systems |
| 5293933, |
Feb 13 1992 |
Halliburton Company |
Swivel cementing head with manifold assembly having remote control valves and plug release plungers |
| 5381867, |
Mar 24 1994 |
NATIONAL OILWELL VARCO, L P |
Top drive torque track and method of installing same |
| 5388651, |
Apr 20 1993 |
NATIONAL OILWELL VARCO, L P |
Top drive unit torque break-out system |
| 5433279, |
Jul 20 1993 |
Tesco Corporation |
Portable top drive assembly |
| 5501286, |
Sep 30 1994 |
NATIONAL OILWELL VARCO, L P |
Method and apparatus for displacing a top drive torque track |
| 5755296, |
Sep 13 1994 |
NABORS INDUSTRIES, INC |
Portable top drive |
| 5950724, |
Sep 04 1996 |
ANTARES CAPITAL LP, AS SUCCESSOR AGENT |
Lifting top drive cement head |
| 6024181, |
Sep 13 1994 |
NABORS INDUSTRIES, INC |
Portable top drive |
| 6276450, |
May 02 1999 |
VARCO I P, INC |
Apparatus and method for rapid replacement of upper blowout preventers |
| 6276466, |
Oct 29 1999 |
|
System for measuring the direction and revolution of a production string |
| 6527047, |
Aug 24 1998 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Method and apparatus for connecting tubulars using a top drive |
| 6536520, |
Apr 17 2000 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Top drive casing system |
| 6622796, |
Dec 24 1998 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Apparatus and method for facilitating the connection of tubulars using a top drive |
| 6634423, |
Jan 16 2002 |
|
Lifting top drive remote control cement head |
| 6679333, |
Oct 26 2001 |
CANRIG DRILLING TECHNOLOGY, LTD |
Top drive well casing system and method |
| 6688398, |
Aug 24 1998 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Method and apparatus for connecting tubulars using a top drive |
| 6705405, |
Aug 24 1998 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Apparatus and method for connecting tubulars using a top drive |
| 6725938, |
Dec 24 1998 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Apparatus and method for facilitating the connection of tubulars using a top drive |
| 6742596, |
May 17 2001 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
Apparatus and methods for tubular makeup interlock |