Class 166/54.1 - WITH MEANS FOR SEPARATELY PUMPING FROM PLURAL SOURCES IN WELL

Subclass of Class 166 - Wells
Definition: Devices comprising a well having plural earth formations
No. of patents: 27
Last issue date: 01/01/2008

Number	Title	Issue Date
7314081	Pumping from two levels of a pool of production fluid, and one way valve therefore A method of pumping upper production fluid from an upper level of an underground pool of production fluid and pumping lower production fluid having a higher concentration of sand from a lower level during a single pump cycle comprises providing a dual action recipro...	01/01/2008
7249634	Apparatus for production in oil wells An apparatus uses at least one injection pump (9) positioned in proximity to an undersea petroleum well (10) to provide hydraulic fluid for hydraulic pumping equipment positioned in the bottom of the well, in order to cause a flow of produced oil. The ...	07/31/2007
7231978	Chemical injection well completion apparatus and method An apparatus to be disposed within a wellbore includes a production tubing in communication with a pump string and a bypass string at its distal end, wherein the pump string is configured to pump a wellbore fluid to a surface location through the production tubing, ...	06/19/2007
7228914	Interventionless reservoir control systems Systems and methods for positively closing off a section of wellbore and, thereby providing reservoir control. Systems and methods are described for selectively closing off a section of a wellbore to fluid communication. The wellbore completion section may then be r...	06/12/2007
7207381	Downhole pump driven by injection water A method and apparatus for improving the performance of production-injection wells whereby a pump (35), driven by a hydraulic turbine (32) sharing the same central shaft (33, 34), is run and set in an oil-producing well. The oil enters the annul...	04/24/2007
7185707	Hydrostatic separator apparatus and method The present invention may be used as an apparatus and method for extracting oil from a hydrocarbon material bearing formation. A well may be positioned in a formation having hydrocarbon material with a well casing extending into the formation that may have a number ...	03/06/2007
7056060	Apparatus and method for remediation of low permeability formations An apparatus and method for treating contaminated groundwater in low permeability ground formations is provided having a groundwater intake region at the bottom of the well and a groundwater expulsion region above the bottom of the well and a means for moving the wa...	06/06/2006
7048057	Protection scheme and method for deployment of artificial lift devices in a wellbore A protection system for an artificial lift device including but not limited to electrical submersible pump (ESP) and an electrical submersible progressing cavity pup (ESPCP). The artificial lift device is suspended on a tubing string into a wellbore where the artifi...	05/23/2006
7021373	Downhole hydraulic ram A system and method for pumping water from a wellbore to a surface location using an improved motorless water pump. The improved motorless water pump is a downhole hydraulic ram pump powered by the renewable energy source, groundwater. As water falls down a wellbore...	04/04/2006
6928864	Tool assembly and monitoring applications using same The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a h...	08/16/2005
6422318	Horizontal well system A horizontal well system, in accordance with the principles of the invention, includes a porous casing member having an interior space, a first end, and a second end, with at least a portion of the porous casing member being positioned substantially horiz...	07/23/2002
6415864	System and method for separately producing water and oil from a reservoir A system for reservoir control. The system allows segregated production of fluids, e.g. water and oil, to control the fluid-fluid interface. Downhole sensors are utilized in providing data about the location of the interface. This permits the proactive mo...	07/09/2002
6412555	System and method for controlling fluid flow in one or more oil and/or gas wells System and method for controlling fluid flows in one or more oil and/or gas wells in a geological formation, the wells each comprising a production tube, the formation containing a water-containing volume with a higher water level, comprising: one or more...	07/02/2002
6343656	System and method for optimizing production from a rod-pumping system A method for optimizing production from a rod-pumping system includes the steps of providing a well having a rod-pumping system for pumping a fluid from a downhole location of the well to a surface location of the well; providing a mathematical model for ...	02/05/2002
6325143	Dual electric submergible pumping system installation to simultaneously move fluid with respect to two or more subterranean zones A dual submergible pumping system permits the production and/or injection of fluids from or into separate zones within a narrowly confined wellbore without commingling of fluids. The system includes at least first and second electric submergible pumping s...	12/04/2001
6279651	Tool for managing fluid flow in a well A tool and method for managing fluid flow in a well use flow control and monitoring functions. A particular tool provides valve and metering functions combined with electrical generator and pump functions. Two of these tools can be used such that one gene...	08/28/2001
6131655	Apparatus and methods for downhole fluid separation and control of water production The present invention related to a system which prevent coning while minimizing the problems associated with any reverse coning which may result. The system includes a production string disposed within a wellbore having both oil production perforations an...	10/17/2000
6125936	Dual completion method for oil/gas wells to minimize water coning A dual completion method for oil/gas wells, which method is designed to prevent or at least minimize, coning of water in a hydrocarbon producing well. In a preferred embodiment the method includes the steps of perforating a common zone in the oil/gas well...	10/03/2000
6092599	Downhole oil and water separation system and method The present invention relates to a downhole oil and water separation system having a casing which includes an interval in communication with a producing zone. The system further includes two pumps disposed in the casing for use in lifting segregated produ...	07/25/2000
5862863	Dual completion method for oil/gas wells to minimize water coning A dual completion method for oil/gas wells, which method is designed to prevent or at least minimize, coning of water in a hydrocarbon producing well. In a preferred embodiment the method includes the steps of perforating a common zone in the oil/gas well...	01/26/1999
5404943	Multiple pump assembly for wells A multiple well pump assembly tool. The tool is designed to allow use of multiple submersible pumps in a single borehole. The tool collects the output from two or more pumps and discharges the combined output into the well discharge line. The tool may be ...	04/11/1995
5301749	Dual pump floating layer recovery apparatus There is provided a dual pump floating layer recovery apparatus for pumping a floating layer of contaminant out of a well. The apparatus comprises an upper pump and a lower pump. The lower pump creates a cone of depression which increases the amount of th...	04/12/1994
5293931	Modular, multi-level groundwater sampler Apparatus for taking a multiple of samples of groundwater or pressure measurements from a well simultaneously. The apparatus comprises a series of chambers arranged in an axial array, each of which is dimensioned to fit into a perforated well casing and l...	03/15/1994
5180013	Method for in situ removal of a spilled fluid from soil In a preferred method, a spilled fluid, lighter than and immiscible with water, is removed by, first, penetrating through the fluid zone and at least partially through the groundwater zone to provide a bore in communication therewith. Then, at suitable in...	01/19/1993
4967843	Device for producing an effluent contained in a submarine geological formation and production method employed using such a device A method and device for producing effluent contained in a submarine geological formation which enables a submarine transfer of a petroleum output over short and medium distances between, for example, a hydrocarbon deposit and a hydrocarbon processing plat...	11/06/1990
4495991	Procedure for drawing water from a ground water store The invention concerns a procedure for drawing water from a ground water store in such manner that the water obtained will contain the least possible amount of iron or manganese compounds, of hardness-inducing salts or of other detrimental impurities occu...	01/29/1985
4377208	Recovery of natural gas from deep brines A method is described for circulating hydrostatically pressured or geopressured brines so that dissolved methane in the brines can be recovered within the wellpipe. All processes take place downhole or in the surrounding briny formations, and the circulat...	03/22/1983

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Class 166/54.1 - WITH MEANS FOR SEPARATELY PUMPING FROM PLURAL SOURCES IN WELL