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7607479 |
Three phase downhole separator apparatus and process
Three phase separator systems for separating mixtures downhole are provided that utilize fluid isolation devices or packers to allow sections of casing to separate water, oil, and gas through...
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7597150 |
Water sensitive adaptive inflow control using cavitations to actuate a valve
An apparatus for controlling fluid flow between a wellbore tubular and a wellbore annulus includes a passage between a bore of the wellbore tubular and the wellbore annulus. The passage causes...
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7568527 |
Method of collecting crude oil and crude oil collection header apparatus
The invention includes methods of collecting crude oil and apparatus which collect crude oil. In one implementation, a crude oil collection header apparatus comprises a collection reservoir. A...
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7559362 |
Downhole flow reversal apparatus
A water reinjection arrangement for a coal bed methane well to minimize water disposal problems at the well surface. Water is withdrawn by a motor driven pump from an upper coal seam through...
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7546880 |
Extracting gas hydrates from marine sediments
A process for extracting hydrocarbon gases from marine sediment hydrates. In one embodiment, the process includes drilling from a sea floor into a hydrate rich subsea sediment to form at least one...
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7543648 |
System and method utilizing a compliant well screen
A system and method is provided for filtering in a wellbore during various well related operations while limiting the potential for plugging. A well screen is used for filtering particulates from a...
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7537058 |
Method for gas production from gas hydrate reservoirs
The present invention is directed to using depressurization methods to create mobile fluid zones for producing fluids from a Class 3 hydrate reservoirs through a well. Aspects of the present...
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7533730 |
Variable and slow speed pumping unit
A pumping unit is provided with a hydraulic drive unit. The drive includes a hydraulic motor attached to a driven sheave that, through reduction gears, drives a drive shaft and crank arm that...
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7510011 |
Well servicing methods and systems employing a triggerable filter medium sealing composition
Well servicing methods and systems are described, in one embodiment comprising installing a tool in a wellbore, the tool comprising a base tubular having a plurality of openings and a longitudinal...
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7500522 |
Fluid with asphaltene control
Asphaltene control additives are added to base fluids which are introduced directly or indirectly into a hydrocarbon-bearing formation to mitigate asphaltene deposition in the formation which...
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7493951 |
Under-balanced directional drilling system
A production well arrangement that includes a vertical main well extending into a gas producing strata and an access hole having a vertical portion coupled to a curved portion, which is coupled to...
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7490674 |
Dual cylinder lift pump and method of recovering fluids from subsurface formations
A pump jack system for reciprocating a pump rod string is made up of a base frame and piston drive cylinders mounted on the base frame with the upper end of the pump rod connected to the cylinder...
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7488704 |
Invert drilling fluids for use in drilling in subterranean formations
Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such...
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7487838 |
Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well
An electrical submersible pump (ESP) completion installed in casing perforated for water disposal and production. A packer separates the disposal zone and the production zone. An inverted ESP...
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7484562 |
Method and apparatus for controlling a quantity of a specific gas in a group of gases produced from a given well bore
This invention relates to a method and apparatus for controlling a gas in a group of gases produced from a reservoir and specifically relates to controlling the amount of methane gas in a group of...
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7475724 |
Method of determining a fluid inflow profile of wellbore
A method of determining a fluid inflow profile along the length of a permeable inflow region of an underground wellbore comprising:
transferring heat into or from the permeable inflow region...
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7469747 |
Method and apparatus for preventing spillage or loss of drill fluids
A well bore fluid recovery system and method is disclosed for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for...
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7462580 |
Flat rheology drilling fluids
Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such...
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7451814 |
System and method for producing fluids from a subterranean formation
The system of subterranean wells includes a subsurface flow line 20 having at least a portion within or underlining one or more subterranean formations 12 . One or more drainage wells 26, 28,...
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7441597 |
Method and apparatus for in-situ radiofrequency assisted gravity drainage of oil (RAGD)
The present invention relates generally to the use of radiofrequency energy to heat heavy crude oil or both heavy crude oil and subsurface water in situ, thereby enhancing the recovery and handling...
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7431084 |
Production of hydrogen from underground coal gasification
A system of obtaining hydrogen from a coal seam by providing a production well that extends into the coal seam; positioning a conduit in the production well leaving an annulus between the conduit...
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7428924 |
System and method for completing a subterranean well
A technique is provided for completing a subterranean wellbore. A wellbore completion combines a distributed sensing system, such as a distributed temperature sensing system, with at least one flow...
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7422067 |
Deploying an assembly into a well
A technique that is usable with a well includes running an isolation device into the well and using the isolation device to form a seal to create a first region of the well isolating the surface of...
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7419007 |
Retrievable downhole pumping system
A pumping system 10 is provided for pumping fluid from a downhole well to the surface through a production tubing string well. A rotatable drive rod 18 extends from the surface to power the...
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7409997 |
Electric submersible pump with specialized geometry for pumping viscous crude oil
A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and...
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7401655 |
Downhole gas compressor
A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The operator computes a frictional pressure drop due to friction of the...
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7396216 |
Submersible pump assembly for removing a production inhibiting fluid from a well and method for use of same
A submersible pump assembly ( 100 ) for removing a production inhibiting fluid ( 102 ) from a well ( 110 ) and method for use of the same is disclosed. The submersible pump assembly ( 100 )...
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7387164 |
Method and apparatus for selective injection or flow control with through-tubing operation capacity
An in-line flow control device for a well chokes flow through a conduit while allowing access therethrough.
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7383886 |
Device and a method for selective control of fluid flow between a well and surrounding rocks
A device and a method for selective control of fluid flow between a flow pipe ( 14 ) of a well and surrounding rocks ( 12 ). The flow pipe ( 14 ) is provided with at least one flow-through particle...
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7380608 |
Pumping water from a natural gas well
In a method for de-watering a gas well, the water is pumped by an inverted API pump acting as a reciprocating pump from a position in the well casing below the gas formation and the gas escapes...
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7373971 |
Pump jack and method of use
An electromagnetic ram for use in artificially lifting fluid from a well and in particular an oil well. The disclosure also teaches a method and system employing the ram. The use obviates existing...
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7367400 |
Motor protector and method for chemical protection of same
A chamber for use in a submersible pump assembly. The submersible pump assembly has a submersible motor which is connected to a power source and which will drive a submersible pump in the...
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7363983 |
ESP/gas lift back-up
A well production system has a string of production tubing with a junction having two legs. A first leg is sealed to the casing by a packer located above well perforations. A submersible pump...
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7357186 |
Recirculation gas separator
A submersible pumping system includes a pump, a motor that drives the pump and a separator assembly. The separator assembly is for separating gas from the fluid and includes an intake and a vent...
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7347256 |
Portable well fluid extraction apparatus
Well fluid extraction apparatus includes a resiliently downwardly biased discharge head and a canister lowerable from the discharge head into the well to receive fluid therefrom, and then liftable...
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7337843 |
Solar blackbody waveguide for solar assisted oil recovery applications
A method to enhance oil shale, oil sand, asphaltic crude oil, or other high viscosity crude oil production by using a solar blackbody waveguide to heat these formations in situ. A parabolic mirror...
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7331389 |
Re-use of recovered treating fluid
Treating fluid production and subterranean formation treating methods as well as treating fluid compositions that reuse at least part of a prior treating fluid, particularly a fluid having one or...
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7328748 |
Thermal actuated plunger
A downhole plunger for a gas/oil well comprises a valve to regulate fluid flow past the plunger and a thermal actuator to control the valve. The thermal actuator of the disclosed device enables the...
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7318481 |
Self-conforming screen
A screen assembly has a material that conforms to the borehole shape after insertion. The assembly comprises a compliant layer that takes the borehole shape on expansion. The outer layer is formed...
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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...
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7306042 |
Method for completing a well using increased fluid temperature
Methods for forming a portion of a wellbore are provided. The well is drilled from a first selected depth to a second selected depth to form a bore through a surrounding earth formation. A fluid...
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7296633 |
Flow control apparatus for use in a wellbore
Methods and apparatus for use in a welibore to meter and choke certain components from being produced, based upon their density relative to the density of oil are described herein. The device...
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7273106 |
Surface flow controlled valve and screen
An adjustable well screen assembly having a pipe which is connectable to a production pipe, wherein the pipe comprises a hole extending from the ID of the pipe to the OD of the pipe; a screen...
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7273098 |
Method for controlling oil and gas well production from multiple wells
A method for producing oil or gas from multiple wells, the wells including at least a first well and a second well, with each well using an artificial lift system that includes a plunger associated...
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7270187 |
Flying valve and well production method
The invention relates to oil and gas production and can be used for lifting liquid from wells by gas energy. A flying valve includes a tubular body, a detachable element in the form of a body of...
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7270186 |
Downhole well pump
The pump and pump system of the present invention is designed to remove liquids, gas, sand and coal fines from gas and/or oil well bores. There is a need in the oil and gas industry to develop a...
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7255175 |
Fluid recovery system and method
A fluid recovery system 10 for collecting formation fluid at the surface of a well 12 includes a downhole jet pump 20 and a surface diaphragm pump 40 having a plurality of diaphragms 42 ....
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7243726 |
Enhancing a flow through a well pump
A method that is usable with a well includes injecting a chemical through a chemical injection line into a flow that passes through a well pump. The method includes controlling the injection of the...
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7242317 |
Wireless well communication system and method
Well data and production control commands are transmitted from a remote central data store to wells at a remote location with a well hopping system and method, preferably through a radio frequency...
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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...
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