| 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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| 05/16/2013 | WO2013070446A1 Completion method for stimulation of multiple intervals |
| 05/16/2013 | WO2013070445A1 Completion method for stimulation of multiple intervals |
| 05/16/2013 | WO2013070304A1 Method for determining the presence and location of a subsurface hydrocarbon accumulation and the origin of the associated hydrocarbons |
| 05/16/2013 | WO2013070235A1 Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
| 05/16/2013 | WO2013070219A1 Rotational motion-inducing variable flow resistance systems having a sidewall fluid outlet and methods for use thereof in a subterranean formation |
| 05/16/2013 | WO2013070182A1 Fluid discrimination for use with a subterranean well |
| 05/16/2013 | WO2013070181A1 Variable flow resistance for use with a subterranean well |
| 05/16/2013 | WO2013068326A1 High heat resistant polyamide for down hole oil components |
| 05/16/2013 | WO2013039782A3 System, apparatus and method for generating power in a fluid conduit |
| 05/16/2013 | WO2012173860A3 Time-delay fluids for wellbore cleanup |
| 05/16/2013 | WO2012173716A3 Air-freightable containment cap for containing a subsea well |
| 05/16/2013 | WO2012156495A3 Method for injecting low salinity water |
| 05/16/2013 | WO2012083047A3 Multi-zone fracturing completion |
| 05/16/2013 | WO2012051584A3 Method and apparatus for isolating and treating discrete zones within a wellbore |
| 05/16/2013 | WO2012051148A3 Marine subsea assemblies |
| 05/16/2013 | WO2012022287A3 Rotation-prevention means for borehole pumps |
| 05/16/2013 | WO2012010853A3 Real-time field friction reduction meter and method of use |
| 05/16/2013 | US20130123556 Method of producing sulfur dioxide |
| 05/16/2013 | US20130119993 Method and system for passive electroseismic surveying |
| 05/16/2013 | US20130118805 Disappearing perforating gun system |
| 05/16/2013 | US20130118754 Thermal Hydrate Preventer |
| 05/16/2013 | US20130118751 Formation fracturing |
| 05/16/2013 | US20130118750 System And Method For Performing Treatments To Provide Multiple Fractures |
| 05/16/2013 | US20130118748 Gelled Foam Compositions And Methods |
| 05/16/2013 | US20130118746 Composite Cable Systems For Use In An In Situ Oil Production Process |
| 05/16/2013 | US20130118745 Internally pressurized perforating gun |
| 05/16/2013 | US20130118743 Nonionic hydrophobically substituted cellulose ethers |
| 05/16/2013 | US20130118741 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 05/16/2013 | US20130118740 Well Completion Methods Using Gellable Treatment Fluids Having Long Term Thermal Stability of the Gelled State |
| 05/16/2013 | US20130118739 Real Time Downhole Sensor Data for Controlling Surface Stimulation Equipment |
| 05/16/2013 | US20130118738 Gravel pack assembly and method of use |
| 05/16/2013 | US20130118737 Method for initiating circulation for steam assisted gravity drainage |
| 05/16/2013 | US20130118736 Methods and Systems For Machine - Learning Based Simulation of Flow |
| 05/16/2013 | US20130118734 Method and apparatus for estimating a downhole fluid property using a rare earth doped laser |
| 05/16/2013 | US20130118730 Downhole tools including anomalous strengthening materials and related methods |
| 05/16/2013 | US20130118726 Gravel Pack Crossover Tool with Low Drag Force |
| 05/16/2013 | US20130118342 Explosive carrier end plates for charge-carriers used in perforating guns |
| 05/16/2013 | CA2854870A1 Hydrolyzable particle compositions, treatment fluids and methods |
| 05/16/2013 | CA2854793A1 Completion method for stimulation of multiple intervals |
| 05/16/2013 | CA2854787A1 Pressure relief device, system, and method |
| 05/16/2013 | CA2854557A1 Low profile rod pumping unit with pneumatic counterbalance for the active control of the rod string |
| 05/16/2013 | CA2853932A1 Completion method for stimulation of multiple intervals |
| 05/16/2013 | CA2853621A1 High heat resistant polyamide for down hole oil components |
| 05/16/2013 | CA2853295A1 Method for determining the presence and location of a subsurface hydrocarbon accumulation and the origin of the associated hydrocarbons |
| 05/16/2013 | CA2852423A1 Rotational motion-inducing variable flow resistance systems having a sidewall fluid outlet and methods for use thereof in a subterranean formation |
| 05/16/2013 | CA2851561A1 Fluid discrimination for use with a subterranean well |
| 05/16/2013 | CA2851559A1 Variable flow resistance for use with a subterranean well |
| 05/16/2013 | CA2850106A1 Method of fracturing using mannanohydrolase enzyme breaker |
| 05/16/2013 | CA2830959A1 Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
| 05/16/2013 | CA2795659A1 Method for initiating circulation for steam assisted gravity drainage |
| 05/15/2013 | EP2592221A2 Gravel pack crossover tool with low drag profile |
| 05/15/2013 | EP2592220A2 Erosion Resistant Flow Nozzle For Downhole Tool |
| 05/15/2013 | EP2591294A2 Oilfield application of solar energy collection |
| 05/15/2013 | EP2591208A1 Optimized chemical assisted recovery method |
| 05/15/2013 | EP2591207A1 Systems and methods for killing a well |
| 05/15/2013 | EP2591205A2 Method and device for sealing leaks on media-conducting structures |
| 05/15/2013 | EP2591174A2 Underwater oil and gas collection system |
| 05/15/2013 | CN202937692U Brake device for oil pumping unit |
| 05/15/2013 | CN202937438U Pump anti-blocking device |
| 05/15/2013 | CN202937296U Multifunctional coal bed gas exploitation process pipe string |
| 05/15/2013 | CN202937248U Single-well metering device |
| 05/15/2013 | CN202937243U Underground liquid-gas separator |
| 05/15/2013 | CN202937242U Producing well head sand removing device |
| 05/15/2013 | CN202937241U Bridge type eccentricity water distributor |
| 05/15/2013 | CN202937240U Double-probe measuring and adjusting linkage system |
| 05/15/2013 | CN202937239U Integrated device for jell dispersoid continuous online production and injection |
| 05/15/2013 | CN202937238U Beforehand throttle stab-resistant water distributor |
| 05/15/2013 | CN202937237U Threaded ceramic gas nipple |
| 05/15/2013 | CN202937236U Beam-pumping unit balance adjustment device |
| 05/15/2013 | CN202937235U Casing pipe automatic gas-recycling device |
| 05/15/2013 | CN202937234U Single-cylinder hydraulic reciprocating type oil pumping unit |
| 05/15/2013 | CN202937233U Hydraulic reciprocating oil pumping machine |
| 05/15/2013 | CN202937226U Horizontal flow blanking plug |
| 05/15/2013 | CN202933539U Oil-sand separator of oil pumping unit |
| 05/15/2013 | CN103109039A Hydraulic fracturing method |
| 05/15/2013 | CN103109038A A motor and pump barrier fluids pressure regulation system in a subsea motor and pump module |
| 05/15/2013 | CN103104449A Frequency-conversion speed regulating device and frequency-conversion speed regulating method applied to oilfield water injection system |
| 05/15/2013 | CN103104240A Downhole oil-water separation device with multistage hydrocyclones in parallel |
| 05/15/2013 | CN103104239A Buried sand high energy gas stress cracking method |
| 05/15/2013 | CN103104238A Microorganism oil displacement numerical simulation method |
| 05/15/2013 | CN103104237A Working method for oil well thinner tubing pump |
| 05/15/2013 | CN103104236A Improved down-hole device of oil well thinner tubing pump |
| 05/15/2013 | CN103104235A Injection surface active agent ground device and working method thereof applied to oil field |
| 05/15/2013 | CN103104234A Hollow sucker rod mixed chemical agent technique pipe column and working method thereof |
| 05/15/2013 | CN103104233A Downhole emulsification method in oil field |
| 05/15/2013 | CN103104232A Viscosity reduction process pipe column with chemical agent mixed in oil jacket annular space and working method thereof |
| 05/15/2013 | CN103104231A Bridge type concentric continuous adjustable water distributor |
| 05/15/2013 | CN103104230A Single-pipe multi-well water distribution system and water distribution method thereof |
| 05/15/2013 | CN103104229A Multistage centrifugal water injection pump system with pressurizing attached pump and water injection method thereof |
| 05/15/2013 | CN103104228A Multistage centrifugal injection pump system with supercharging attached pump |
| 05/15/2013 | CN103104227A Double-tube multi-well water distribution system |
| 05/15/2013 | CN103104226A Double tube multi-well water distribution system and water distribution method thereof |
| 05/15/2013 | CN103104225A Water distribution system and water distribution method thereof applied to oilfield exploitation |
| 05/15/2013 | CN103104224A Water distribution system applied to oilfield exploitation |
| 05/15/2013 | CN103104223A Three-channel oil production switch |
| 05/15/2013 | CN103104222A Method for pumping and collecting coal bed gas through combination of ground vertical well and long bedding drill hole |
| 05/15/2013 | CN103104221A Improved down-hole device of oil well thinner tubing pump and working method thereof |
| 05/15/2013 | CN103104220A Valve type heavy crude pump oil extraction system and oil extraction method thereof |
| 05/15/2013 | CN103104219A Method using same-layer equivalent in-site extraction well group to extract underground heat energy |
| 05/15/2013 | CN103104200A Rotating stir emulsification and viscosity reduction oil extraction pipe column under high thick oil pump and working method thereof |