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)
04/2014
04/08/2014US8689883 Adjustable venturi valve
04/08/2014US8689876 Liquified petroleum gas fracturing system
04/08/2014US8689875 Formation treatment using electromagnetic radiation
04/08/2014US8689874 Visco-elastic surfactant spacers
04/08/2014US8689871 Compositions and methods for well completions
04/08/2014US8689865 Process for enhanced production of heavy oil using microwaves
04/08/2014CA2778135C Solvent assisted startup techniques for in situ bitumen recovery with sagd well pairs, infill wells or step-out wells
04/08/2014CA2768208C Flow path control based on fluid characteristics to thereby variably resist flow in a subterranean well
04/08/2014CA2759304C System and method for dynamically adjusting the center of gravity of a perforating apparatus
04/08/2014CA2759161C System and method for dynamically adjusting the center of gravity of a perforating apparatus
04/08/2014CA2752959C System and method for dynamically adjusting the center of gravity of a perforating apparatus
04/08/2014CA2747981C Well equipment for heated fluid recovery
04/08/2014CA2740941C Process for solvent assisted in situ bitumen recovery startup
04/08/2014CA2735916C Narrow well bore
04/08/2014CA2735355C Method and means for recovering hydrocarbons from oil sands by underground mining
04/08/2014CA2734351C High rate stimulation method for deep, large bore completions
04/08/2014CA2716809C Enhancing emulsion stability
04/08/2014CA2707482C A method for performing oilfield production operations
04/08/2014CA2701955C Setting tool for expandable liner hanger and associated methods
04/08/2014CA2663497C Method for passive seismic emission tomography
04/08/2014CA2633746C Method and system for development of hydrocarbon bearing formations including depressurization of gas hydrates
04/08/2014CA2558424C Extracting and processing hydrocarbon-bearing formations
04/05/2014CA2829422A1 Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas
04/05/2014CA2792323A1 High volume frac water heating system
04/04/2014CA2829268A1 Enhanced hydrocarbon recovery from multiple wells by steam injection of oil sand formations
04/04/2014CA2829033A1 Enhanced hydrocarbon recovery from a single well by electrical resistive heating of multiple inclusions in an oil sand formation
04/04/2014CA2829031A1 Enhanced hydrocarbon recovery from a single well by electrical resistive heating of a single inclusion in an oil sand formations
04/04/2014CA2829009A1 Enhanced hydrocarbon recovery from a single well by electrical resistive heating of a single inclusion in an oil sand formations
04/04/2014CA2829008A1 Method of developing subsurface barriers
04/04/2014CA2795940A1 Improved hydraulic fracturing process for deviated wellbores
04/03/2014WO2014052465A1 Dehydrated gel compositions and methods of using the same
04/03/2014WO2014052324A1 Particulate weighting agents comprising removable coatings and methods of using the same
04/03/2014WO2014052176A1 Isotherm and gas-in-place estimation considering capillary condensation in shale gas reservoir
04/03/2014WO2014052142A2 Detection of position of a plunger in a well
04/03/2014WO2014052085A1 Methods of enhancing fracturing stimulation in subterranean formations using in situ foam generation and pressure pulsing
04/03/2014WO2014051588A1 Powered wellbore bailer
04/03/2014WO2014051585A1 Methods of increasing the volume of a perforation tunnel using a shaped charge
04/03/2014WO2014051570A1 Single trip multi-zone completion systems and methods
04/03/2014WO2014051568A1 In-line sand screen gauge carrier
04/03/2014WO2014051566A1 Snorkel tube with debris barrier for electronic gauges placed on sand screens
04/03/2014WO2014051565A1 Method of placing distributed pressure gauges across screens
04/03/2014WO2014051564A1 Single trip multi-zone completion systems and methods
04/03/2014WO2014051562A1 Single trip multi-zone completion systems and methods
04/03/2014WO2014051561A1 Completion assembly and methods for use thereof
04/03/2014WO2014051559A1 Tubing conveyed multiple zone integrated intelligent well completion
04/03/2014WO2014051557A1 Multiple zone integrated intelligent well completion
04/03/2014WO2014049234A1 Device for sampling at a depth
04/03/2014WO2014049024A2 Subsea heat exchanger
04/03/2014WO2014049019A1 Flowable aqueous compositions and method for increasing the feed rate of crude oil and/or natural gas from a subterranean reservoir that contains crude oil and/or natural gas
04/03/2014WO2014049018A1 Flowable composition, method for producing the flowable composition and method for fracing a subterranean formation using the flowable composition
04/03/2014WO2014049017A1 Method for directional fracking of an underground formation, into which at least one deviated bore is sunk
04/03/2014WO2014048119A1 New mining process for underground in-situ drilling corrosion of nonmetallic mineral
04/03/2014WO2014047685A1 Power production from ucg product gas with carbon capture
04/03/2014WO2013134039A3 Optimizing subterranean treatment characteristic by digital geoinformatics
04/03/2014WO2013130551A3 Method for transient testing of oil wells completed with inflow control devices
04/03/2014WO2013011307A3 A pump and a method of positioning a pump
04/03/2014WO2012166550A3 Hydrajetting nozzle and method
04/03/2014WO2012058027A3 Method and system for fracturing a formation
04/03/2014US20140090852 Temporary Cap for a Blownout Subsea Wellhead
04/03/2014US20140090850 Shale oil and gas fracturing fluids containing additives of low environmental impact
04/03/2014US20140090849 Methods and Compositions for In Situ Microemulsions
04/03/2014US20140090848 Compositions and methods for treating a well penetrating a subterranean formation
04/03/2014US20140090846 High power laser decommissioning of multistring and damaged wells
04/03/2014US20140090844 Swellable elastomer and its use in acidizing or matrix stimulation
04/03/2014US20140090841 Methods and compositions for enhanced oil recovery
04/03/2014US20140090839 Enhanced oil recovery by in-situ steam generation
04/03/2014US20140090838 Alkylaromatic sulfonates for enhanced oil recovery process
04/03/2014US20140090834 Em and combustion stimulation of heavy oil
04/03/2014US20140090830 Lubricator with interchangeable ports
04/02/2014CN203520101U Oil pumping unit data acquisition and motor control system
04/02/2014CN203520094U Oil pumping machine working state automatic detection device
04/02/2014CN203520064U Digitalized oil-extraction intelligent frequency-conversion controlling device
04/02/2014CN203517266U Piston-type lubricating device for lubricating steel wire rope of walking-beam pumping unit
04/02/2014CN203516923U Continuous automatic oil collecting device of sedimentation tank
04/02/2014CN203516791U Grinding wheel type multistage regulating valve
04/02/2014CN203516232U Pumping unit energy storage device
04/02/2014CN203516035U High-energy hydraulic oil extraction system
04/02/2014CN203516032U Blocking-type blowout-proof oil well pump
04/02/2014CN203516028U Fireflood oil well pump
04/02/2014CN203515575U Sealing device with limiting function and capable of realizing single layer testing for measuring producing profile
04/02/2014CN203515544U Pressure reducing and liquid adding device for producing well
04/02/2014CN203515543U Whole-series high-capacity automatic ball-installing digital control staged fracturing ball injector
04/02/2014CN203515542U Downhole hydraulic control type fully-opened sliding sleeve sand blasting and packing integrated staged fracturing device
04/02/2014CN203515541U Synchronous opening sliding sleeve used in gas well
04/02/2014CN203515540U Balance type mechanical ball injector
04/02/2014CN203515539U Remote-control double-ball ball throwing device
04/02/2014CN203515538U Double-hanger gas well fracture well mouth
04/02/2014CN203515537U Gas well fracturing fluid blowout and flowback ignition device
04/02/2014CN203515536U Fluid alternate continuous pumping device for hydraulic fracture simulation experiment
04/02/2014CN203515535U High-pressure watering uni-flow device
04/02/2014CN203515534U Thickened-oil thermal production well immovable-string dispensing joint exploitation device
04/02/2014CN203515533U Adjustable steam injection tubular column of horizontal well
04/02/2014CN203515532U Downhole electric heating device of continuous tube type horizontal well
04/02/2014CN203515531U Filling pipeline based on balance tank instillation device
04/02/2014CN203515530U Bridge-type packer water distributor
04/02/2014CN203515529U Novel water-injected oil well oil recovery device
04/02/2014CN203515528U Glass model used for displacement micro-experiments
04/02/2014CN203515527U Layering oil extraction device
04/02/2014CN203515526U Bridge type layer mining device suitable for multi-layer layer mining
04/02/2014CN203515525U Bottom-hole regulator
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