| |
 |
|
Class Information
Number: 166/62
Name: Wells > With heating, refrigerating or heat insulating means > With eduction pump or plunger in well
Description: Devices comprising pump or plunger means in the well for drawing well fluids out of the well or into a receptacle which is lifted out of the well.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610964 |
Positive displacement pump |
Nov. 3, 2009 |
| 7597138 |
Ground water heat transfer systems and deployment thereof |
Oct. 6, 2009 |
| 7464755 |
Methods and systems for sampling heavy oil reservoirs |
Dec. 16, 2008 |
| 7363979 |
Down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
Apr. 29, 2008 |
| 7320364 |
Inhibiting reflux in a heated well of an in situ conversion system |
Jan. 22, 2008 |
| 7299873 |
Method for pumping fluids |
Nov. 27, 2007 |
| 7246662 |
Systems and methods for controlling flow control devices |
Jul. 24, 2007 |
| 7037105 |
Heating apparatus for wells |
May. 2, 2006 |
| 6691782 |
Method and system for below motor well fluid separation and conditioning |
Feb. 17, 2004 |
| 6598681 |
Dual gearbox electric submersible pump assembly |
Jul. 29, 2003 |
| 6564874 |
Technique for facilitating the pumping of fluids by lowering fluid viscosity |
May. 20, 2003 |
| 6343652 |
Method and device for cleaning out a well or piping blocked with gas hydrates |
Feb. 5, 2002 |
| 6318467 |
System and method for pumping and heating viscous fluids in a wellbore |
Nov. 20, 2001 |
| 6206093 |
System for pumping viscous fluid from a well |
Mar. 27, 2001 |
| 6092598 |
Method and apparatus for measuring operating parameters of a submergible pumping system |
Jul. 25, 2000 |
| 6039121 |
Enhanced lift method and apparatus for the production of hydrocarbons |
Mar. 21, 2000 |
| 6006837 |
Method and apparatus for heating viscous fluids in a well |
Dec. 28, 1999 |
| 5620048 |
Oil-well installation fitted with a bottom-well electric pump |
Apr. 15, 1997 |
| 5607018 |
Viscid oil well completion |
Mar. 4, 1997 |
| 5553666 |
Standoff insulator and method for well pump cable |
Sep. 10, 1996 |
| 5126037 |
Geopreater heating method and apparatus |
Jun. 30, 1992 |
| 5040605 |
Oil recovery method and apparatus |
Aug. 20, 1991 |
| 5009264 |
Well production apparatus including pump means and thermal absorption means |
Apr. 23, 1991 |
| 4988389 |
Exploitation method for reservoirs containing hydrogen sulphide |
Jan. 29, 1991 |
| 4944634 |
Anti-friction composition containing MgO and method |
Jul. 31, 1990 |
| 4911239 |
Method and apparatus for removal of oil well paraffin |
Mar. 27, 1990 |
| 4878540 |
Apparatus and process for pumping fluid from subterranean formations |
Nov. 7, 1989 |
| 4865130 |
Hot gas generator with integral recovery tube |
Sep. 12, 1989 |
| 4790375 |
Mineral well heating systems |
Dec. 13, 1988 |
| 4716960 |
Method and system for introducing electric current into a well |
Jan. 5, 1988 |
| 4687420 |
Sonic pressure wave pump with liquid heating and elevating mechanism |
Aug. 18, 1987 |
| 4609041 |
Well hot oil system |
Sep. 2, 1986 |
| 4538858 |
Apparatus for drilling and inserting a horizontal pipe |
Sep. 3, 1985 |
| 4502535 |
Jet engine pump and downhole heater |
Mar. 5, 1985 |
| 4157847 |
Method and apparatus for utilizing accumulated underground water in the mining of subterranean sulphur |
Jun. 12, 1979 |
| 4154297 |
Lift gas heat exchanger |
May. 15, 1979 |
| 4099570 |
Oil production processes and apparatus |
Jul. 11, 1978 |
| 3970143 |
Oil well production system |
Jul. 20, 1976 |
|
|
|
