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Class Information
Number: 166/54.1
Name: Wells > With means for separately pumping from plural sources in well
Description: Devices comprising a well having plural earth formations which are isolated from each other so that fluid is separately obtainable therefrom and in which pumping means, comprising one or more individual pumps, is operatively associated to pump from each formation for separate delivery of the fluids from the well.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7249634 |
Apparatus for production in oil wells |
Jul. 31, 2007 |
| 7207381 |
Downhole pump driven by injection water |
Apr. 24, 2007 |
| 7185707 |
Hydrostatic separator apparatus and method |
Mar. 6, 2007 |
| 7021373 |
Downhole hydraulic ram |
Apr. 4, 2006 |
| 6928864 |
Tool assembly and monitoring applications using same |
Aug. 16, 2005 |
| 6422318 |
Horizontal well system |
Jul. 23, 2002 |
| 6415864 |
System and method for separately producing water and oil from a reservoir |
Jul. 9, 2002 |
| 6412555 |
System and method for controlling fluid flow in one or more oil and/or gas wells |
Jul. 2, 2002 |
| 6343656 |
System and method for optimizing production from a rod-pumping system |
Feb. 5, 2002 |
| 6325143 |
Dual electric submergible pumping system installation to simultaneously move fluid with respect to two or more subterranean zones |
Dec. 4, 2001 |
| 6279651 |
Tool for managing fluid flow in a well |
Aug. 28, 2001 |
| 6131655 |
Apparatus and methods for downhole fluid separation and control of water production |
Oct. 17, 2000 |
| 6125936 |
Dual completion method for oil/gas wells to minimize water coning |
Oct. 3, 2000 |
| 6092599 |
Downhole oil and water separation system and method |
Jul. 25, 2000 |
| 5862863 |
Dual completion method for oil/gas wells to minimize water coning |
Jan. 26, 1999 |
| 5404943 |
Multiple pump assembly for wells |
Apr. 11, 1995 |
| 5301749 |
Dual pump floating layer recovery apparatus |
Apr. 12, 1994 |
| 5293931 |
Modular, multi-level groundwater sampler |
Mar. 15, 1994 |
| 5180013 |
Method for in situ removal of a spilled fluid from soil |
Jan. 19, 1993 |
| 4967843 |
Device for producing an effluent contained in a submarine geological formation and production method employed using such a device |
Nov. 6, 1990 |
| 4495991 |
Procedure for drawing water from a ground water store |
Jan. 29, 1985 |
| 4377208 |
Recovery of natural gas from deep brines |
Mar. 22, 1983 |
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