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)
10/2009
10/28/2009	CN101566053A System and method to facilitate treatment and production in a wellbore
10/28/2009	CN100554865C Improvements in and relating to oil well perforators
10/28/2009	CN100554746C Method of assembling two hermetic threaded tubular joints comprising a local and initial added thickness by means of plastic expansion
10/28/2009	CN100554687C Beam-free sliding oil sucker with eccentric wheel
10/28/2009	CN100554686C Down-hole screw pump oil production device
10/28/2009	CN100554641C Oil well electric spark de-blocking joint-forming robot
10/28/2009	CN100554640C Beam-pumping unit donkey head expending method
10/27/2009	US7608567 Degradable surfactants and methods for use
10/27/2009	US7608566 Degradable particulates as friction reducers for the flow of solid particulates and associated methods of use
10/27/2009	US7607903 Stator tube removal and installation device
10/27/2009	US7607486 One trip tubular expansion and recess formation apparatus and method
10/27/2009	US7607485 Tubing hanger and wellhead housing with mating tubing annulus passages
10/27/2009	US7607479 Three phase downhole separator apparatus and process
10/27/2009	US7607379 Perforation gun system for sealing perforation holes
10/27/2009	CA2588324C Retrievable frac mandrel and well control stack to facilitate well completion, re-completion or workover and method of use
10/27/2009	CA2574003C Foamed viscoelastic surfactants
10/27/2009	CA2532750C Self-diverting foamed system
10/27/2009	CA2496719C Self-conforming well screen
10/27/2009	CA2372857C Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids
10/25/2009	CA2631911A1 Fluid filtration tool
10/22/2009	WO2009129451A2 Method for treating a hydrocarbon containing formation
10/22/2009	WO2009129449A2 Methods of treating a hydrocarbon containing formation
10/22/2009	WO2009129448A1 Methods for generation of subsurface heat for treatment of a hydrocarbon containing formation
10/22/2009	WO2009129445A2 Method for treating a hydrocarbon containing formation
10/22/2009	WO2009129444A2 Methods of treating a hydrocarbon containing formation
10/22/2009	WO2009129442A2 Method for recovery of hydrocarbons from a subsurface hydrocarbon containing formation
10/22/2009	WO2009129289A2 Formation treatment evaluation
10/22/2009	WO2009129219A2 Systems and methods for producing oil and/or gas
10/22/2009	WO2009129218A2 Systems and methods for producing oil and/or gas
10/22/2009	WO2009129039A1 Method and system for treating an aqueous stream in the production of hydrocarbon
10/22/2009	WO2009094514A3 A junction having improved formation collapse resistance and method
10/22/2009	WO2009094314A3 Methods of recovering hydrocarbons from oil shale and sub-surface oil shale recovery arrangements for recovering hydrocarbons from oil shale
10/22/2009	WO2009064941A3 Tensioner anti-rotation device
10/22/2009	US20090260834 Intervention Rod
10/22/2009	US20090260833 Method and Apparatus to Provide Electrical Connection in a Wellhead for a Downhole Electrical Device
10/22/2009	US20090260831 High pressure sleeve for dual bore hp riser
10/22/2009	US20090260830 Rigless well completion method
10/22/2009	US20090260829 Subsea tree safety control system
10/22/2009	US20090260828 Use of Carbon-Dioxide-Based Fracturing Fluids
10/22/2009	US20090260827 Enzyme enhanced oil recovery (EEOR) for water alternating gas (WAG) systems
10/22/2009	US20090260826 Method and system for injection of viscous unweighted, low-weighted, or solids contaminated fluids downhole during oilfield injection process
10/22/2009	US20090260825 Method for recovery of hydrocarbons from a subsurface hydrocarbon containing formation
10/22/2009	US20090260821 Method and Apparatus for Stimulating Wells with Propellants
10/22/2009	US20090260820 Block copolymers for recovering hydrocarbon fluids from a subterranean reservoir
10/22/2009	US20090260819 Compositions and methods for diverting injected fluids to achieve improved hydrocarbon fluid recovery
10/22/2009	US20090260817 Method and Apparatus to Cement A Perforated Casing
10/22/2009	US20090260815 System and Method to Facilitate Treatment and Production in a Wellbore
10/22/2009	US20090260814 System and Method to Facilitate Treatement and Sand Control in a Wellbore
10/22/2009	US20090260813 Placing an aqueous phenol-formaldehyde polymer containing a sodium bisulfate and sodium sulphate in the water conduits of the production zone of a gas or oil reservoir to form a barrier to shut off or reduce unwanted production of water; through a well-bore tubing and/or annulus of a well; solidification
10/22/2009	US20090260812 Methods of treating a hydrocarbon containing formation
10/22/2009	US20090260811 Methods for generation of subsurface heat for treatment of a hydrocarbon containing formation
10/22/2009	US20090260810 Method for treating a hydrocarbon containing formation
10/22/2009	US20090260809 Method for treating a hydrocarbon containing formation
10/22/2009	US20090260808 Method for treating a hydrocarbon containing formation
10/22/2009	US20090260806 Bottomhole tool and a method for enhanced oil production and stabilization of wells with high gas-to-oil ratio
10/22/2009	US20090260803 Identification, characterization, and application of shewanella putrefaciens (lh4:18), useful in microbially enhanced oil release
10/22/2009	US20090260800 Sealed drive for a rotating sucker rod
10/22/2009	CA2721376A1 Formation treatment evaluation
10/22/2009	CA2721306A1 Methods for generation of subsurface heat for treatment of a hydrocarbon containing formation
10/22/2009	CA2721278A1 Systems and methods for producing oil and/or gas
10/22/2009	CA2721264A1 Systems and methods for producing oil and/or gas
10/22/2009	CA2720997A1 Methods of treating a hydrocarbon containing formation
10/22/2009	CA2720988A1 Method for treating a hydrocarbon containing formation
10/22/2009	CA2720986A1 Method for recovery of hydrocarbons from a subsurface hydrocarbon containing formation
10/22/2009	CA2720984A1 Methods of treating a hydrocarbon containing formation
10/22/2009	CA2720951A1 Method for treating a hydrocarbon containing formation
10/21/2009	EP2110509A2 System and method for thru tubing deepening of gas lift
10/21/2009	EP2109584A2 Method for reducing the emission of green house gases into the atmosphere
10/21/2009	EP1766185B1 System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants
10/21/2009	EP0941395B1 Controlled gel breaker
10/21/2009	CN201330697Y Oil field augmented injection pump intelligent drive energy-saving control apparatus
10/21/2009	CN201330595Y Oil level control mechanism of four-phase separator
10/21/2009	CN201330594Y Experimental device for simulating true oil well acidifying
10/21/2009	CN201330593Y Novel vacuum insulation over flow device
10/21/2009	CN201330592Y Adjustable oil nozzle
10/21/2009	CN201330591Y Self-excitation natural gas well underground sand prevention device
10/21/2009	CN201330590Y Single-cylinder bidirectional whole balance hydraulic pumping unit
10/21/2009	CN201330589Y Erection type hydraulic pumping unit capable of being pushed upwards and draught downwards
10/21/2009	CN201330588Y Oil pumping machine motor jackscrew
10/21/2009	CN201330587Y Hydraulic oil salvager overload protector
10/21/2009	CN201330586Y Unscrewing wireless alarming self-stopping device for crank pin of oil pumping machine
10/21/2009	CN201330585Y Hydraulic-controlled linear oil pumping unit
10/21/2009	CN201330584Y Linear oil pumping unit
10/21/2009	CN201330580Y Novel heat preservation type working barrel for gas lift valve
10/21/2009	CN101563525A Low bulk density proppant and methods for producing the same
10/21/2009	CN101563524A Combined development of oil shale by in situ heating with a deeper hydrocarbon resource
10/21/2009	CN101560878A Horizontal well even steam injection and test wellhead device
10/21/2009	CN101560877A Horizontal well packer staged fracturing technology tube pillar
10/21/2009	CN101560876A Multifunctional processor for liquid generated underground
10/21/2009	CN101560875A Multifunctional horizontal well completion tubular pile device
10/21/2009	CN101560874A Changeable combined layer separate-layer oil extraction technological process and separate-layer combination oil extraction process tubular column
10/21/2009	CN101560873A Intelligent pumping unit with double-conical drums
10/21/2009	CN101560871A Multi-pipe-column injection test thermal recovery wellhead device
10/21/2009	CN100552369C Shaped charge assembly and method of damaging a target
10/21/2009	CN100552184C Method for rapidly tracking and monitoring variation of oil production inpouring bacterium
10/20/2009	US7604464 Mechanically actuated gas separator for downhole pump
10/20/2009	US7604064 Multi-stage, multi-phase unitized linear liquid entrained-phase transfer apparatus
10/20/2009	US7604061 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore
10/20/2009	US7604055 Completion method with telescoping perforation and fracturing tool
10/20/2009	US7604054 Enhanced hydrocarbon recovery by convective heating of oil sand formations

1 ... 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 ... 642