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)
05/2008
05/29/2008US20080121395 Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
05/29/2008US20080121394 Downhole Sampling Tool and Method for Using Same
05/29/2008US20080121393 Oxygen and carbon dioxide are mixed to form an oxidizer fluid, fuel is combusted downhole by reacting it with oxidizer fluid to provide hot combustion products; combustion products are placed in contact with diluent fluid; cooled product fluid is injected into methane hydrate deposit decomposing hydrate
05/29/2008US20080121392 Closed loop multiphase underbalanced drilling process
05/29/2008US20080121391 Methods and systems for gas well deliquification
05/29/2008CA2819744A1 Oxazolidinium compounds and use as hydrate inhibitors
05/29/2008CA2674362A1 Perforating gun assembly with auger to control wellbore fluid dynamics
05/29/2008CA2669312A1 Method of radially expanding a tubular element
05/28/2008EP1706583B1 High-strength sealed connection for expandable tubulars
05/28/2008CN201065825Y Stroke adjustable energy-saving type hydraulic pumping unit
05/28/2008CN201065824Y Pumping unit inertial load buffer
05/28/2008CN201065817Y Oil field operation plunger pump
05/28/2008CN201065758Y Down-hole swirling type sand-settling device
05/28/2008CN201065757Y Steam swallowing apparatus selecting injection device
05/28/2008CN201065756Y Double panel motor-driven pumping unit
05/28/2008CN201065755Y Continuous liquid-discharging device for exploration well testing for oil
05/28/2008CN201065754Y Oil-well pump sand-proof device
05/28/2008CN201065753Y Folding type pumping machine highrise operation safety platform
05/28/2008CN101187961A Output prediction system for emission hole complete well
05/28/2008CN101187367A Downhole double screw pump system
05/28/2008CN101187306A Direct-drive tower type pumping machine
05/28/2008CN101187305A Single pipe co-well oil-pumping and water-injecting technological system
05/28/2008CN101187304A High reliability double well pumping machine
05/28/2008CN101187303A Novel pumping machine
05/28/2008CN101187302A Annular rack type pumping machine
05/28/2008CN101187296A Protective sleeve for threaded connections for expandable liner hanger
05/28/2008CN101187293A Eccentric wear prevention pumping pipe string
05/28/2008CN101187292A Supercritical heat-insulated oil pipe production method
05/28/2008CN100390372C Underground reciprocating oil puming machine driven by rotary motor
05/27/2008US7379853 Method for enhancing production allocation in an integrated reservoir and surface flow system
05/27/2008US7378769 Electric motors for powering downhole tools
05/27/2008US7377328 Expandable anchor
05/27/2008US7377326 Magnetic impulse applied sleeve method of forming a wellbore casing
05/27/2008US7377325 Centraliser
05/27/2008US7377322 Method and apparatus for cementing production tubing in a multilateral borehole
05/27/2008US7377320 Apparatus and method for gravel packing
05/27/2008US7377318 Interpretation and design of hydraulic fracturing treatments
05/27/2008US7377314 Downhole gas separator
05/27/2008US7377313 Gas separator fluid crossover for well pump
05/27/2008US7377312 Oil well pump apparatus
05/27/2008US7377310 System for expanding a tubular element in a wellbore
05/27/2008CA2393744C Tools and methods for use with expandable tubulars
05/22/2008WO2008061200A1 Oilfield management system
05/22/2008WO2008060893A2 Large bore packer and methods of setting same
05/22/2008WO2008060769A2 Providing a sensor array
05/22/2008WO2008060311A2 Method for cagd recovery of heavy oil
05/22/2008WO2008058636A1 Process for obtaining carbon dioxide
05/22/2008WO2008058540A1 Fluid cleaner
05/22/2008WO2008058463A1 An annular gear rack pumping unit
05/22/2008WO2008058400A1 Catalytic down-hole upgrading of heavy oil and oil sand bitumens
05/22/2008WO2008008745A3 Method and system of diagnosing production changes
05/22/2008WO2007050446A3 Methods of filtering a liquid stream produced from an in situ heat treatment process
05/22/2008US20080116689 Hydrocratic generator
05/22/2008US20080115971 Remote Gas Monitoring Apparatus for Sealed Drilling
05/22/2008US20080115945 Enzyme enhanced oil recovery (EEOR) for cyclic steam injection
05/22/2008US20080115940 Apparatus, system, and method for casing hole formation in radial drilling operations
05/22/2008US20080115939 Radial Expansion of Tubular Members
05/22/2008US20080115936 Technique to limit proppant carry-over out of fracture
05/22/2008US20080115935 In situ conversion of heavy hydrocarbons to catalytic gas
05/22/2008US20080115933 Method and apparatus for maintaining or restoring a decreasing production from a hydrocarbon or gas well
05/22/2008US20080115932 Method and apparatus for delayed flow or pressure change in wells
05/22/2008US20080115930 Electrolytic system and method for enhanced release and deposition of sub-surface and surface components
05/22/2008US20080115927 Well Pump Device
05/22/2008US20080115926 Collar Assembly for Pump Thrust Rod Used to Activate Microswitch Valve on Chemical Injection Pump
05/22/2008CA2642750A1 Method for cagd recovery of heavy oil
05/22/2008CA2611803A1 Well treatment fluid containing viscoelastic surfactant and viscosification activator
05/22/2008CA2568947A1 Method and apparatus for maintaining or restoring a decreasing production from a hydrocarbon or gas well
05/21/2008EP1922389A1 Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process
05/21/2008EP1733119B1 Method for intensification of high-viscosity oil production and apparatus for its implementation
05/21/2008EP1618281B1 Mandrel for a gas lift valve
05/21/2008DE102006054472A1 Verfahren zur Gewinnung von Kohlendioxid A method for recovering carbon dioxide
05/21/2008CN201062577Y Dirty-scraping oil pump
05/21/2008CN201062576Y Plunger pump
05/21/2008CN201062511Y Triangle grain stainless steel plate web-cylinder sand-filtering pipe device
05/21/2008CN201062510Y Overload safeguard swab
05/21/2008CN101182841A Sand-proof oil-well pump oil inlet valve
05/21/2008CN101182840A Filling-in bits mule head pin
05/21/2008CN101182765A Single well pressure boost gas production device
05/21/2008CN101182764A High-temperature mixer generators plant
05/21/2008CN101182763A Steam injection technology method of high-temperature mixer generators
05/21/2008CN101182762A Beam type energy-saving oil pumping machine
05/21/2008CN101182761A Pumping unit with pole
05/20/2008US7373990 Method and apparatus for expanding and separating tubulars in a wellbore
05/20/2008US7373989 Flow nozzle assembly
05/20/2008US7373988 Liner running system and method
05/20/2008US7373980 Mono-trip cement thru completion
05/20/2008US7373979 Workstring and a method for gravel packing
05/20/2008US7373978 Method for drilling and completing wells
05/20/2008US7373977 amphoteric alkyl amido betaine surfactants form a viscoelastic gel reducing interfacial tension and increasing viscosity of injection fluid simultaneously; aqueous injection fluids; the produced water can be used as the injection water without costly water treatment, softening and sludge disposal
05/20/2008US7373976 Well production optimizing system
05/20/2008US7373971 Pump jack and method of use
05/20/2008CA2495985C System and method for subterranean access
05/20/2008CA2461855C Vibration assisted tubing expansion
05/20/2008CA2353733C Improved plunger lift with multipart piston
05/20/2008CA2169322C Pumping system
05/17/2008CA2568358A1 In-situ method of producing oil and gas (methane), on-shore and off-shore
05/15/2008WO2008058298A1 Method and apparatus for the delivery of under-saturated sour water into a geological formation
05/15/2008WO2008057892A1 Use of anionic surfactants as hydration aid for fracturing fluids
05/15/2008WO2008057398A2 Fracturing monitoring within a treatment well
05/15/2008WO2008057219A2 Methods and systems for gas well deliquification
1 ... 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 ... 642