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) |
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11/28/2013 | US20130315677 Lift/Boarding Vessel |
11/28/2013 | US20130313160 Isolating Lubricating Oils from Subsurface Shale Formations |
11/28/2013 | US20130312976 Methods for using liquefied natural gas for well stimulation |
11/28/2013 | US20130312975 Process for Water Wetting Oil-Wet Surfaces |
11/28/2013 | US20130312974 Controlling hydrogen sulfide production in oilfield operations |
11/28/2013 | US20130312973 Methods for Drilling and Stimulating Subterranean Formations for Recovering Hydrocarbon and Natural Gas Resources |
11/28/2013 | US20130312972 System To Heat Water For Hydraulic Fracturing |
11/28/2013 | US20130312971 Enhanced hydrocarbon recovery method comprising optimizing the injection of an aqueous conditioning solution |
11/28/2013 | US20130312970 Thickening of fluids |
11/28/2013 | US20130312969 Use of hexose oxidases to create hydrogen peroxide in aqueous well treatment fluids |
11/28/2013 | US20130312963 Method for Combined Cleaning and Plugging in a Well, a Washing Tool for Directional Washing in a Well, and Uses Thereof |
11/28/2013 | US20130312962 Enhancing the Conductivity of Propped Fractures |
11/28/2013 | US20130312961 Biomimetic Adhesive Compositions Comprising a Phenolic Polymer and Methods for Use Thereof |
11/28/2013 | US20130312960 Shunt isolation valve |
11/28/2013 | US20130312959 Methods and systems for enhanced delivery of thermal energy for horizontal wellbores |
11/28/2013 | US20130312958 Reservoir treatment |
11/28/2013 | US20130312957 Systems and methods for enhanced recovery of hydrocarbonaceous fluids |
11/28/2013 | US20130312956 Spectral Analysis Techniques for Fluid Monitoring |
11/28/2013 | US20130312955 Processing Hydrocarbons |
11/28/2013 | US20130312954 System for lining a wellbore |
11/28/2013 | US20130312950 Igniting an underground coal seam in an underground coal gasification process, ucg |
11/28/2013 | US20130312949 Cutting unit of a hydromechanical slot perforator |
11/28/2013 | US20130312833 Gas lift valve with ball-orifice closing mechanism and fully compressible dual edge-welded bellows |
11/27/2013 | EP2666958A1 Method of fraccing a well |
11/27/2013 | EP2666957A2 Gas lift valve with ball-orifice closing mechanism and fully compressible dual edge-welded bellows |
11/27/2013 | EP2665958A2 Subsea pipeline connecting apparatus and method |
11/27/2013 | EP2665937A1 High pressure multistage centrifugal pump for fracturing hydrocarbon reserves |
11/27/2013 | EP2665893A2 Downhole sand control apparatus and method with tool position sensor |
11/27/2013 | EP2665892A1 Method for fracturing a formation using a fracturing fluid mixture |
11/27/2013 | EP2665891A1 Fracturing system and method for an underground formation using natural gas and an inert purging fluid |
11/27/2013 | EP2665890A1 Fracturing system and method for an underground formation |
11/27/2013 | EP2665889A2 Varying pore size in a well screen |
11/27/2013 | EP2665887A2 Method for capping a well in the event of subsea blowout preventer failure |
11/27/2013 | CN203308449U Wax examining tubular column |
11/27/2013 | CN203308448U Coal nozzle hole protection device |
11/27/2013 | CN203308447U Intelligent electric switch sliding sleeve |
11/27/2013 | CN203308446U Multi-stage fracturing sliding sleeve free from opening in midway |
11/27/2013 | CN203308445U Intelligent constant-current remote control water injection device |
11/27/2013 | CN203308444U Anti-drop spraying nozzle structure |
11/27/2013 | CN203308443U Circulating gas injection pipe column |
11/27/2013 | CN203308442U Phi 95 mm ground direct control bottom-hole regulator |
11/27/2013 | CN203308441U Novel energy-saving pumping unit |
11/27/2013 | CN203308440U Asynchronous balanced positive torque oil pumping unit |
11/27/2013 | CN203308439U Digital slide balance adjustment pumping unit |
11/27/2013 | CN203308438U Novel hydraulic double-well pumping unit |
11/27/2013 | CN203308437U Pumping unit system |
11/27/2013 | CN203308411U Sand prevention hydraulic anchor |
11/27/2013 | CN203308392U High-pressure gas injection tubular column sealing plug |
11/27/2013 | CN203308390U Iso-dryness distribution tee joint |
11/27/2013 | CN103415674A System and method for servicing a wellbore |
11/27/2013 | CN103415673A Method and system for radially expanding a tubular element and directional drilling |
11/27/2013 | CN103415598A Method and apparatus for treating a raw UCG product stream |
11/27/2013 | CN103412521A Automatic control system and method of fracturing blender truck |
11/27/2013 | CN103412511A Permanent magnet synchronous motor direct driving type oil pumping machine control system and control method thereof |
11/27/2013 | CN103412483A Model-free gradient optimization control method for offshore platform injection and production and simulating device for offshore platform injection and production |
11/27/2013 | CN103411118A Centralized lubrication device of walking beam type pumping unit |
11/27/2013 | CN103410495A Gas-water separator with automatic cooling function |
11/27/2013 | CN103410494A Acidification fracturing truck |
11/27/2013 | CN103410493A Blending equipment for exploiting shale gas |
11/27/2013 | CN103410492A Flying stop device for carbon dioxide extraction device |
11/27/2013 | CN103410491A Hole shrinking sliding sleeve |
11/27/2013 | CN103410490A Network type measuring truck |
11/27/2013 | CN103410489A Modification and viscosity reduction method for in-situ combustion heavy oil recovery |
11/27/2013 | CN103410488A Natural gas hydrate water discharge gas production exploitation device and exploitation method of natural gas hydrate water discharge gas production exploitation device |
11/27/2013 | CN103410487A Thickened oil thermal recovery decompression method and device |
11/27/2013 | CN103410486A Three-in-one composite profile control and displacement process used for oilfield deep profile control |
11/27/2013 | CN103410485A Hole-regulating variable-pressure down-hole choke |
11/27/2013 | CN103410484A Small-diameter tubular pump pump-passing depth checking perforating and pumping combined production method |
11/27/2013 | CN103410483A Evaluation device and method for sand controlling effect of screen pipe of horizontal well |
11/27/2013 | CN103410482A Speed reduction device for ultralow-stroke-frequency pumping unit |
11/27/2013 | CN103410481A Oil-extracting machine unit |
11/27/2013 | CN103410480A Unit type four-side continuous seamlessly-sectionalized radial multiple-branch three-dimensional injection-production development technology |
11/27/2013 | CN103410479A Double-drive mechanism of pumping unit |
11/27/2013 | CN103410478A Hollow oil pumping device for fluid producing profile tests |
11/27/2013 | CN103410475A Environment-friendly annular continuous dosing automatic device for oil-gas wells and dosing method |
11/27/2013 | CN103410470A Thermal injection pipe column and thermal injection valve of heavy oil thermal recovery well |
11/27/2013 | CN103409131A Swelled-clay shrinking agent for plug removal, and preparation method and application thereof |
11/27/2013 | CN103409126A Betaine surfactant system improved by segmented copolymer and application of betaine surfactant system |
11/27/2013 | CN102383766B Self-heating natural gas hydrate preventing device |
11/27/2013 | CN102203210B Method of reducing viscosity of hydrocarbon fluids |
11/27/2013 | CN102174882B Medium-pressure gas collection technique based on cluster well |
11/27/2013 | CN102042014B Multistage-cylinder near well-bore zone shearing simulation device with three layers of compacted sand bodies |
11/27/2013 | CN102042013B Near wellbore area cutting simulation device for combined cylinder body with three layers of compacted sand bodies |
11/27/2013 | CN101949280B Anti-scaling and anti-sand device connected with oil pumping tubing string into whole and application method |
11/27/2013 | CN101798912B Device and method for regulating and controlling water content of production fluid of underground layering of oil field |
11/26/2013 | US8592351 Enhancing emulsion stability |
11/26/2013 | US8590630 System and method for controlling the flow of fluid in branched wells |
11/26/2013 | US8590622 Organic acid compositions and methods of use in subterranean operations |
11/26/2013 | US8590621 Low damage seawater based frac pack fluid |
11/26/2013 | US8590619 Method for producing natural gas from hydrocarbon hydrates while simultaneously storing carbon dioxide in geological formations |
11/26/2013 | US8590618 Method and apparatus for single run cutting of well casing and forming subsurface lateral passages from a well |
11/26/2013 | US8590614 High pressure stimulation pump |
11/26/2013 | CA2754486C System and method for monitoring fluid flow through an electrical submersible pump |
11/26/2013 | CA2686508C Process and process line for the preparation of hydraulic fracturing fluid |
11/23/2013 | CA2786269A1 Fluid level control mechanism |
11/23/2013 | CA2777966A1 Solvent injection plant for enhanced oil recovery and method of operating same |
11/21/2013 | WO2013173725A2 Liquefied industrial gas based solution in hydraulic fracturing |
11/21/2013 | WO2013173634A1 In-situ method and system for removing heavy metals from produced fluids |
11/21/2013 | WO2013173600A2 Methods for protecting a hydrocarbon-producing zone of a subterranean formation using a relative permeability modifier |
11/21/2013 | WO2013173404A1 System and method for performing a perforation operation |