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Document |
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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3765483 |
METHOD AND APPARATUS FOR PRODUCING DUAL ZONE OIL AND GAS WELLS
Two oil and gas zones are produced by allowing production from each zone to drain to separate chambers where production from each zone is pumped by a separate pump; the outputs from the separate...
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3426687 |
ZONE SELECTOR ACTUATED BY VENT LINE
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3326292 |
Multiple string well pumping system and apparatus
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3326290 |
Multiple zone well completion with separate inlet tubings and a common production tubing
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3212444 |
Pump
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3109376 |
Method and apparatus for producing oil from multiple strata from single well bore
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3089429 |
Valve for subsurface pumps
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3084630 |
Apparatus for use in pumping wells
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3064580 |
Assembly for pumping well fluids
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3040812 |
Zone selector for wells
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2951445 |
Pumping assembly for well fluids
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2931304 |
Assembly for pumping well fluids
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2910002 |
Two zone pumping
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2906207 |
Assembly for producing oil
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2905099 |
Oil well pumping apparatus
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2876703 |
Multiple gas lift production
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2818022 |
Bottom hole hydraulic pump
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2811924 |
Two-zone production
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2808781 |
Well apparatus and system
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2806429 |
Dual string production device
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2799226 |
Hydraulic pump
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2797642 |
2-zone pump
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