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Class Information
Number: 166/68.5
Name: Wells > With below and above ground modification > Eduction pump or plunger in well > With above ground (1) motor carried by casing or casing support or (2) well fluid pump
Description: Devices comprising (1) an above ground driving motor for actuating the below ground pump or plunger, said motor being carried on a ground embedded casing or an embedded foundation which supports a casing or (2) an above ground pump means which acts on fluid derived from the well.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7448443 |
Variably operable oil recovery system |
Nov. 11, 2008 |
| 7419007 |
Retrievable downhole pumping system |
Sep. 2, 2008 |
| 7373971 |
Pump jack and method of use |
May. 20, 2008 |
| 7343967 |
Well fluid homogenization device |
Mar. 18, 2008 |
| 7337851 |
Rotating stuffing box with split standpipe |
Mar. 4, 2008 |
| 7316268 |
Method for conditioning wellbore fluids and sucker rod therefore |
Jan. 8, 2008 |
| 7306031 |
Tubing string rotator and method |
Dec. 11, 2007 |
| 7290608 |
Method and system for pumping in an oil well |
Nov. 6, 2007 |
| 7275590 |
Submersible pump |
Oct. 2, 2007 |
| 7258164 |
Pumping system for oil wells |
Aug. 21, 2007 |
| 7255175 |
Fluid recovery system and method |
Aug. 14, 2007 |
| 7188670 |
Plunger lift system |
Mar. 13, 2007 |
| 7150315 |
Downhole fluid disposal apparatus and methods |
Dec. 19, 2006 |
| 7137449 |
Magnet arrangement and method for use on a downhole tool |
Nov. 21, 2006 |
| 7101156 |
Method and apparatus for controlling a pumping unit |
Sep. 5, 2006 |
| 7069986 |
Portable, surface-mounted well pump |
Jul. 4, 2006 |
| 7044215 |
Apparatus and method for driving submerged pumps |
May. 16, 2006 |
| 7040392 |
Bearing assembly for a progressive cavity pump and system for liquid lower zone disposal |
May. 9, 2006 |
| 7036577 |
Underground water pumping device |
May. 2, 2006 |
| 7001157 |
Well pumping unit driven by linear motor |
Feb. 21, 2006 |
| 6988548 |
Method and system for removing fluid from a subterranean zone using an enlarged cavity |
Jan. 24, 2006 |
| 6966366 |
Plunger enhanced chamber lift for well installations |
Nov. 22, 2005 |
| 6929064 |
Downhole pump |
Aug. 16, 2005 |
| 6907925 |
PC pump inlet backwash method and apparatus |
Jun. 21, 2005 |
| 6883612 |
Rod pump |
Apr. 26, 2005 |
| 6857472 |
Well pump device |
Feb. 22, 2005 |
| 6857474 |
Methods, apparatus and products useful in the operation of a sucker rod pump during the production of hydrocarbons |
Feb. 22, 2005 |
| 6854515 |
Wellhead hydraulic drive unit |
Feb. 15, 2005 |
| 6749017 |
Full automatic machine for oil extraction |
Jun. 15, 2004 |
| 6729391 |
Insertable progressing cavity pump |
May. 4, 2004 |
| 6725916 |
Plunger with flow passage and improved stopper |
Apr. 27, 2004 |
| 6715550 |
Controllable gas-lift well and valve |
Apr. 6, 2004 |
| 6705402 |
Gas separating intake for progressing cavity pumps |
Mar. 16, 2004 |
| 6695060 |
Downhole pumping system |
Feb. 24, 2004 |
| 6694858 |
Recirculating linear gas drive system |
Feb. 24, 2004 |
| 6640892 |
Tubing string rotator |
Nov. 4, 2003 |
| 6595278 |
Assembly for locking a polished rod in a pumping wellhead |
Jul. 22, 2003 |
| 6557633 |
In-well contaminant stripper |
May. 6, 2003 |
| 6557639 |
Apparatus and method for pumping fluids for use with a downhole rotary pump |
May. 6, 2003 |
| 6557643 |
Rod hanger and clamp assembly |
May. 6, 2003 |
| 6543543 |
Pump systems and methods |
Apr. 8, 2003 |
| 6543534 |
Downhole jet pump |
Apr. 8, 2003 |
| 6508308 |
Progressive production methods and system |
Jan. 21, 2003 |
| 6502639 |
Hollow tubing pumping system |
Jan. 7, 2003 |
| 6497281 |
Cable actuated downhole smart pump |
Dec. 24, 2002 |
| 6439311 |
Method of retarding sand build up in heavy oil wells |
Aug. 27, 2002 |
| 6422318 |
Horizontal well system |
Jul. 23, 2002 |
| 6397945 |
Power cable system for use in high temperature wellbore applications |
Jun. 4, 2002 |
| 6352109 |
Method and apparatus for gas lift system for oil and gas wells |
Mar. 5, 2002 |
| 6328103 |
Methods and apparatus for downhole completion cleanup |
Dec. 11, 2001 |
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