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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
8479815 Desalination subsurface feedwater supply and brine disposal Jul. 9, 2013
8448699 Electrical submersible pumping system with gas separation and gas venting to surface in separate conduits May. 28, 2013
8418768 Bypass gaslift system, apparatus, and method for producing a multiple zones well Apr. 16, 2013
8408304 Pump mechanism for cooling of rotary bearings in drilling tools and method of use thereof Apr. 2, 2013
8365819 Method of redistributing well bore fluid Feb. 5, 2013
8316950 Systems and methods for deliquifying a commingled well using natural well pressure Nov. 27, 2012
8282365 Pump for pumping fluid in a wellbore using a fluid displacer means Oct. 9, 2012
8196651 Well bore fluid redistribution and fluid disposal in wellbore environments Jun. 12, 2012
8191619 Downhole system and an immersion hydraulic machine for extraction of fluids Jun. 5, 2012
8171997 High velocity string for well pump and method for producing well fluid May. 8, 2012
8056629 Slant well desalination feedwater supply system and method for constructing same Nov. 15, 2011
7950465 System for dewatering boreholes by means of alternative cycles of vacuum and exhaust, based on the principle of pneumatic displacement May. 31, 2011
7931090 System and method for controlling subsea wells Apr. 26, 2011
7922873 Method and apparatus for desalinating water combined with power generation Apr. 12, 2011
7866387 Packer variable volume excluder and sampling method therefor Jan. 11, 2011
7806669 Pump for pumping fluids Oct. 5, 2010
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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