Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186)
12/2010
12/02/2010US20100300674 Permeability flow balancing within integral screen joints
12/02/2010US20100300673 Side track bit
12/02/2010DE202010009170U1 Vorrichtung, die eine Ölbohrung versiegeln soll Device to seal an oil hole
12/02/2010CA2763758A1 Method for monitoring a subsoil zone, particularly during stimulated fracturing operations
12/02/2010CA2760662A1 Fracture monitoring
12/02/2010CA2760066A1 Well monitoring
12/02/2010CA2705959A1 Plug in pump for inverted shroud assembly
12/01/2010EP2255068A2 Test procedure to determine concentration and relative distribution of sized particles in a drilling fluid
12/01/2010EP2255067A1 Geothermal circulation system
12/01/2010EP2255066A2 Cable loss compensation in an electrical submersible pump system
12/01/2010EP2255065A2 Method for installing a riser
12/01/2010EP2255064A2 Multi-cycle single line switch
12/01/2010EP2255063A1 Expandable packer
12/01/2010EP2255062A1 A method and an apparatus for downhole injecting one or more treatment fluids.
12/01/2010EP2140104B1 Subsea installation and method for separation of liquid and gas
12/01/2010CN201661287U Formation acidizing treatment monitoring system
12/01/2010CN201661286U Ground supplementary device for polyhydrocarborn acid acidification
12/01/2010CN201661285U Bailing barrel type continuous thickened oil exploitation device
12/01/2010CN201661284U Compound sealing underground throttling device
12/01/2010CN201661283U Hydraulic suspended plumb energy-storage self-balancing energy-conservation pumping unit
12/01/2010CN201661282U Hydraulic energy-saving multi-well oil pumping unit
12/01/2010CN201661281U Automatic control system for variable parameter running of beam-pumping unit
12/01/2010CN201661280U Novel liner electromagnetic pumping unit
12/01/2010CN201661279U Energy-saving bar-elbow-block linked oil extraction device
12/01/2010CN201661278U Chain drive system of chain type pumping unit
12/01/2010CN201661277U Multifunctional pumping well intensifying device
12/01/2010CN201661263U Thermal production mandrel type bushing head
12/01/2010CN101903617A Subterannean water production, transfer and injection method and apparatus
12/01/2010CN101903616A Methods of contacting and/or treating a subterranean formation
12/01/2010CN101903615A Methods of treating subterranean wells using changeable additives
12/01/2010CN101899972A Establishment method of physical model capable of forecasting waterflood development of sandstone reservoirs
12/01/2010CN101899968A Improved ball injector
12/01/2010CN101899967A Well completion technology for increasing water yield in poor aquifer
12/01/2010CN101899966A Perforating apparatus for enhanced performance in high pressure wellbores
12/01/2010CN101899965A Crank power slide way rail oil extractor
12/01/2010CN101899964A Long-stroke dual-headframe type oil extractor
11/2010
11/30/2010US7844400 System for sampling fluid from a well with a gas trap
11/30/2010US7841425 Drilling subsurface wellbores with cutting structures
11/30/2010US7841411 Use of polyimides in treating subterranean formations
11/30/2010US7841409 Sand control screen assembly and method for use of same
11/30/2010US7841408 In situ heat treatment from multiple layers of a tar sands formation
11/30/2010US7841407 Method for treating a hydrocarbon containing formation
11/30/2010US7841404 Modified process for hydrocarbon recovery using in situ combustion
11/30/2010US7841401 Gas injection to inhibit migration during an in situ heat treatment process
11/30/2010US7841397 Straddle packer and method for using the same in a well bore
11/30/2010US7841396 Hydrajet tool for ultra high erosive environment
11/30/2010US7841395 Electric submersible pump (ESP) with recirculation capability
11/30/2010US7841394 Method and apparatus for centralized well treatment
11/30/2010CA2664727C Improved oil well perforator liners
11/30/2010CA2596773C Injection plane initiation in a well
11/30/2010CA2596460C Flow control for increased permeability planes in unconsolidated formations
11/30/2010CA2549625C Flow nozzle assembly
11/30/2010CA2463110C In situ recovery from a hydrocarbon containing formation using barriers
11/30/2010CA2462794C Method and system for in situ heating a hydrocarbon containing formation by a u-shaped opening
11/28/2010CA2706149A1 High density phosphate brines and methods for making and using same
11/25/2010WO2010135187A2 Systems and methods for deliquifying a commingled well using natural well pressure
11/25/2010WO2010135119A1 Electric submersible pumping system for dewatering gas wells
11/25/2010WO2010135049A1 Cable suspended pumping system
11/25/2010WO2010134843A1 Method for monitoring the oil-field development
11/25/2010WO2010134822A1 Method and apparatus for breaking a stable emulsion
11/25/2010WO2010133564A2 Method of protecting a flexible riser and an apparatus therefor
11/25/2010WO2010133175A1 Film coated particles for oil exploitation and oil exploitation method using the same
11/25/2010WO2010070289A3 Processing apparatus for multiphase hydrocarbon flows
11/25/2010US20100294507 Plunger lift
11/25/2010US20100294506 Systems and methods for deliquifying a commingled well using natural well pressure
11/25/2010US20100294501 Process for the preparation of an organic composition comprising an n-nonyl ester
11/25/2010US20100294500 Method of improving the conductivity of a fracture in the space between proppant pillars
11/25/2010US20100294499 Oil recovery employing alkylene carbonates
11/25/2010US20100294498 Viscoelastic surfactant based wellbore fluids and methods of use
11/25/2010US20100294497 Recovery of oil
11/25/2010US20100294495 Open Hole Completion Apparatus and Method for Use of Same
11/25/2010US20100294494 Water heating apparatus for continuous heated water flow and method for use in hydraulic fracturing
11/25/2010US20100294493 Methods and apparatus to change the mobility of formation fluids using thermal and non-thermal stimulation
11/25/2010US20100294490 Wellhead hydrocarbon upgrading using microwaves
11/25/2010US20100294489 In-situ upgrading of heavy crude oil in a production well using radio frequency or microwave radiation and a catalyst
11/25/2010US20100294488 Accelerating the start-up phase for a steam assisted gravity drainage operation using radio frequency or microwave radiation
11/25/2010US20100294487 System for drilling a wellbore
11/25/2010US20100294480 Sensor deployment
11/25/2010CA2761935A1 Systems and methods for deliquifying a commingled well using natural well pressure
11/25/2010CA2760869A1 Process for treatment of produced water
11/25/2010CA2760423A1 Cable suspended pumping system
11/25/2010CA2760223A1 Electric submersible pumping system for dewatering gas wells
11/24/2010EP2253799A2 Method for generating heat from geothermal energy
11/24/2010EP2253798A1 Methods for producing fluids from acidized and consolidated portions of subterranean formations
11/24/2010EP2253797A1 Method of exploitation of a porous medium by modelling of fluid flows
11/24/2010EP2253796A1 Method of protecting a flexible riser and an apparatus therefor
11/24/2010EP2252768A2 Nano particle reinforced polymer element for a stator and rotor assembly
11/24/2010EP2252766A1 Method of logging a well using a thermal neutron absorbing material
11/24/2010EP2252764A2 One trip liner running, cementing and setting tool using expansion
11/24/2010EP2013446B1 Wellbore system
11/24/2010EP1945905B1 Monitoring formation properties
11/24/2010CN201651733U Oil extractor motor pulley installation shield
11/24/2010CN201651307U Hydraulic cylinder link seal
11/24/2010CN201650697U Underground fracturing pump set of remote-control coal mine
11/24/2010CN201650261U Intermittent pumping and energy saving control device and intermittent pumping and energy saving control circuit of oil pumping machine
11/24/2010CN201650257U Variable-diameter release type running tool
11/24/2010CN201650256U Ball seat type cracking slide sleeve
11/24/2010CN201650255U Remote-control cock type steel ball injector
11/24/2010CN201650254U Construction pipe string integrating fracturing and recovery of hydraulic pump
11/24/2010CN201650253U Combustion drive physical model oil deposit well network
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