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Class Information
Number: 166/104
Name: Wells > With motor for rotary or oscillating motion
Description: Devices combined with a prime mover imparting rotary or oscillating motion.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7405998 |
Method and apparatus for generating fluid pressure pulses |
Jul. 29, 2008 |
| 7321211 |
Power variation control system for cyclic loads |
Jan. 22, 2008 |
| 7303007 |
Method and apparatus for transmitting sensor response data and power through a mud motor |
Dec. 4, 2007 |
| 7219723 |
Integrated control system for beam pump systems |
May. 22, 2007 |
| 7213644 |
Cavity positioning tool and method |
May. 8, 2007 |
| 7182170 |
Gerotor and bearing system for whirling mass orbital vibrator |
Feb. 27, 2007 |
| 7032659 |
Integrated control system for beam pump systems |
Apr. 25, 2006 |
| 6968904 |
Method and apparatus for operations in underground/subsea oil and gas wells |
Nov. 29, 2005 |
| 6953086 |
Bi-directional traction apparatus |
Oct. 11, 2005 |
| 6779598 |
Swivel and eccentric weight to orient a roller sub |
Aug. 24, 2004 |
| 6659203 |
Lockable motor assembly for use in a well bore |
Dec. 9, 2003 |
| 6550534 |
Utilization of energy from flowing fluids |
Apr. 22, 2003 |
| 6543533 |
Well tubing rotator |
Apr. 8, 2003 |
| 6460616 |
Traction apparatus |
Oct. 8, 2002 |
| 6412556 |
Cavity positioning tool and method |
Jul. 2, 2002 |
| 6412560 |
Tubular injector with snubbing jack and oscillator |
Jul. 2, 2002 |
| 6336502 |
Slow rotating tool with gear reducer |
Jan. 8, 2002 |
| 6257333 |
Reverse flow gas separator for progressing cavity submergible pumping systems |
Jul. 10, 2001 |
| 6247533 |
Utilization of energy from flowing fluids |
Jun. 19, 2001 |
| 6241016 |
Drive head assembly |
Jun. 5, 2001 |
| 6059031 |
Utilization of energy from flowing fluids |
May. 9, 2000 |
| 5484016 |
Slow rotating mole apparatus |
Jan. 16, 1996 |
| 5383519 |
Apparatus for rotating a tubing string of a pumping wellhead |
Jan. 24, 1995 |
| 5373898 |
Rotary piston well tool |
Dec. 20, 1994 |
| 5184676 |
Self-propelled apparatus |
Feb. 9, 1993 |
| 5135051 |
Perforation cleaning tool |
Aug. 4, 1992 |
| 4817712 |
Rod string sonic stimulator and method for facilitating the flow from petroleum wells |
Apr. 4, 1989 |
| 4667737 |
Sealing apparatus |
May. 26, 1987 |
| 4624306 |
Downhole mobility and propulsion apparatus |
Nov. 25, 1986 |
| 4576231 |
Method and apparatus for combating encroachment by in situ treated formations |
Mar. 18, 1986 |
| 4557326 |
Well tool locking apparatus |
Dec. 10, 1985 |
| 4509593 |
Downhole mobility and propulsion apparatus |
Apr. 9, 1985 |
| 4342364 |
Apparatus and method for coupling sonic energy to the bore hole wall of an oil well to facilitate oil production |
Aug. 3, 1982 |
| 4306428 |
Torque drive mechanism |
Dec. 22, 1981 |
| 4201266 |
Rotatable washer self-cleaning helical spring screen and methods |
May. 6, 1980 |
| 4192380 |
Method and apparatus for logging inclined earth boreholes |
Mar. 11, 1980 |
| 4108243 |
Apparatus for testing earth formations |
Aug. 22, 1978 |
| 4015662 |
Well tool which changes reciprocating movement to rotary motion |
Apr. 5, 1977 |
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