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Class Information
Number: 166/105
Name: Wells > With eduction pump or plunger
Description: Devices combined with a pump or plunger means for drawing well fluid out of the well or into a receptacle which is to be taken out of the well.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621339 |
Downhole production and injection pump system |
Nov. 24, 2009 |
| 7610964 |
Positive displacement pump |
Nov. 3, 2009 |
| 7604064 |
Multi-stage, multi-phase unitized linear liquid entrained-phase transfer apparatus |
Oct. 20, 2009 |
| 7604049 |
Polymeric composites, oilfield elements comprising same, and methods of using same in oilfield applications |
Oct. 20, 2009 |
| 7597143 |
Method and apparatus for logging downhole data |
Oct. 6, 2009 |
| 7594541 |
Pump control for formation testing |
Sep. 29, 2009 |
| 7588076 |
Pumping and repairing unit |
Sep. 15, 2009 |
| 7584785 |
Groundwater sampling device |
Sep. 8, 2009 |
| 7584784 |
Reciprocating pump drive apparatus |
Sep. 8, 2009 |
| 7565932 |
Subsea flowline jumper containing ESP |
Jul. 28, 2009 |
| 7559362 |
Downhole flow reversal apparatus |
Jul. 14, 2009 |
| 7549467 |
Wellbore motor having magnetic gear drive |
Jun. 23, 2009 |
| 7546870 |
Method and system for removing liquid from a gas well |
Jun. 16, 2009 |
| 7530391 |
Seal section for electrical submersible pump |
May. 12, 2009 |
| 7523783 |
Internal shock absorber plunger |
Apr. 28, 2009 |
| 7516796 |
Piston pump assembly with flexible riser pipe |
Apr. 14, 2009 |
| 7513301 |
Liquid aeration plunger |
Apr. 7, 2009 |
| 7503387 |
Method of logging a well equipped with a rod pump |
Mar. 17, 2009 |
| 7481270 |
Subsea pumping system |
Jan. 27, 2009 |
| 7475731 |
Sand plunger |
Jan. 13, 2009 |
| 7469748 |
Submersible pumping system |
Dec. 30, 2008 |
| 7458787 |
Apparatus and method for reducing gas lock in downhole pumps |
Dec. 2, 2008 |
| 7451824 |
Downhole draw down pump and method |
Nov. 18, 2008 |
| 7448447 |
Real-time production-side monitoring and control for heat assisted fluid recovery applications |
Nov. 11, 2008 |
| 7445049 |
Gas operated pump for hydrocarbon wells |
Nov. 4, 2008 |
| 7445048 |
Plunger lift apparatus that includes one or more sensors |
Nov. 4, 2008 |
| 7431093 |
Protection scheme and method for deployment of artificial lift devices in a wellbore |
Oct. 7, 2008 |
| 7428929 |
Method and apparatus for lifting liquids from gas wells |
Sep. 30, 2008 |
| 7419007 |
Retrievable downhole pumping system |
Sep. 2, 2008 |
| 7413009 |
System and method for pumping fluids |
Aug. 19, 2008 |
| 7409997 |
Electric submersible pump with specialized geometry for pumping viscous crude oil |
Aug. 12, 2008 |
| 7401645 |
Downhole fluid disposal apparatus and methods |
Jul. 22, 2008 |
| 7395865 |
Gas lift plunger arrangement |
Jul. 8, 2008 |
| 7383878 |
Multi-part plunger |
Jun. 10, 2008 |
| 7370697 |
Thrust section wear preventor |
May. 13, 2008 |
| 7363983 |
ESP/gas lift back-up |
Apr. 29, 2008 |
| 7337854 |
Gas-pressurized lubricator and method |
Mar. 4, 2008 |
| 7328749 |
Method and apparatus for accumulating liquid and initiating upward movement when pumping a well with a sealed fluid displacement device |
Feb. 12, 2008 |
| 7328748 |
Thermal actuated plunger |
Feb. 12, 2008 |
| 7325601 |
Shaft locking couplings for submersible pump assemblies |
Feb. 5, 2008 |
| 7325596 |
Pothead assembly |
Feb. 5, 2008 |
| 7320364 |
Inhibiting reflux in a heated well of an in situ conversion system |
Jan. 22, 2008 |
| 7316268 |
Method for conditioning wellbore fluids and sucker rod therefore |
Jan. 8, 2008 |
| 7316270 |
Oil pumping unit using an electrical submersible pump driven by a circular linear synchronous three-phase motor with rare earth permanent magnet |
Jan. 8, 2008 |
| 7314080 |
Slidable sleeve plunger |
Jan. 1, 2008 |
| 7306031 |
Tubing string rotator and method |
Dec. 11, 2007 |
| 7306042 |
Method for completing a well using increased fluid temperature |
Dec. 11, 2007 |
| 7299873 |
Method for pumping fluids |
Nov. 27, 2007 |
| 7290602 |
Internal shock absorber bypass plunger |
Nov. 6, 2007 |
| 7275590 |
Submersible pump |
Oct. 2, 2007 |
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