| 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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| 01/01/2014 | CN103485755A Drilling process of anhydrous sodium sulfate mine well |
| 01/01/2014 | CN103485754A Integrated underground hydraulic control fully-opened type sliding sleeve abrasive blasting and packing staged fracturing device |
| 01/01/2014 | CN103485753A Bottom water heavy oil reservoir steam flooding two-dimensional proportion physical simulation device and using method thereof |
| 01/01/2014 | CN103485752A Oilfield water injection method capable of realizing balanced displacement of remaining oil |
| 01/01/2014 | CN103485751A Modular bullet holder device |
| 01/01/2014 | CN103485750A Intermediate connector device for multistage ignition perforating |
| 01/01/2014 | CN103485749A Perforation angle variable perforator for oil-gas well perforation |
| 01/01/2014 | CN103485748A Automatic sand mixing system and automatic sand mixing process for water-dry lime sand mixed artificial borehole wall sand protection |
| 01/01/2014 | CN103484147A Method for reducing viscocity of thick oil by synergy of plasma and catalyst |
| 01/01/2014 | CN103484094A High-temperature-resistant gelled fracturing fluid, and preparation method and application thereof |
| 01/01/2014 | CN102852513B Continuous oil measuring device of integrating instrument of U-shaped pipe |
| 01/01/2014 | CN102533234B Cement composition and application thereof |
| 01/01/2014 | CN102278095B Automatic reversing mechanism for rodless oil pumping unit |
| 01/01/2014 | CN102155209B Method for fracturing stratum by acidity viscoelastic fluid |
| 01/01/2014 | CN101906955B Oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure |
| 01/01/2014 | CN101787875B Quantitative injection method of multi-level injection liquid |
| 01/01/2014 | CN101769145B Reciprocating motion device |
| 01/01/2014 | CN101675142B Aqueous particulate slurry compositions and methods of making same |
| 01/01/2014 | CN101519955B Clamp spring high-pressure resistant body-free perforating bullet |
| 12/31/2013 | US8616863 ESP with offset laterally loaded bearings |
| 12/31/2013 | US8616294 Systems and methods for generating in-situ carbon dioxide driver gas for use in enhanced oil recovery |
| 12/31/2013 | US8616288 Velocity analyzer for objects traveling in pipes |
| 12/31/2013 | US8616284 Methods for removing residual polymer from a hydraulic fracture |
| 12/31/2013 | US8616283 Process for treating water in heavy oil production using coated heat exchange units |
| 12/31/2013 | US8616280 Wellbore mechanical integrity for in situ pyrolysis |
| 12/31/2013 | US8616279 Water treatment following shale oil production by in situ heating |
| 12/31/2013 | US8616278 Creation of a hydrate barrier during in situ hydrocarbon recovery |
| 12/31/2013 | US8616273 Effective solvent extraction system incorporating electromagnetic heating |
| 12/31/2013 | US8616272 Downhole water-oil separation arrangement and method |
| 12/31/2013 | CA2743381C Apparatus and method for servicing a wellbore |
| 12/31/2013 | CA2740060C Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation |
| 12/31/2013 | CA2738364C Method of enhancing the effectiveness of a cyclic solvent injection process to recover hydrocarbons |
| 12/31/2013 | CA2672487C Preconditioning an oilfield reservoir |
| 12/31/2013 | CA2662210C Internal breaker for oilfield treatments |
| 12/31/2013 | CA2639341C Downhole sliding sleeve combination tool |
| 12/29/2013 | CA2820740A1 Uplifted single well steam assisted gravity drainage system and process |
| 12/29/2013 | CA2820705A1 Sagd control in leaky reservoirs |
| 12/29/2013 | CA2820702A1 Sagdox operation in leaky bitumen reservoirs |
| 12/28/2013 | CA2781413A1 Liner flotation system |
| 12/27/2013 | WO2013192634A2 Self-suspending proppants for hydraulic fracturing |
| 12/27/2013 | WO2013192516A2 Evaluating fluid flow in a wellbore |
| 12/27/2013 | WO2013192438A2 Self-suspending proppants for hydraulic fracturing |
| 12/27/2013 | WO2013192399A2 Method of treating a subterranean formation with a mortar slurry designed to form a permeable mortar |
| 12/27/2013 | WO2013192124A2 Subterranean antenna including antenna element and coaxial line therein and related methods |
| 12/27/2013 | WO2013192067A1 Autonomous untethered well object |
| 12/27/2013 | WO2013191991A1 Systems and methods for stimulating a plurality of zones of a subterranean formation |
| 12/27/2013 | WO2013191901A1 Monitoring of steam chamber growth |
| 12/27/2013 | WO2013191882A2 System and method of assessing a wellbore servicing fluid or a component thereof |
| 12/27/2013 | WO2013191815A1 Breaking diutan with metal activator down to 140 °f or lower |
| 12/27/2013 | WO2013190093A2 A predictive flow assurance assessment method and system |
| 12/27/2013 | WO2013163506A3 Systems, spacer devices and methods for aligning multi-well modular templates and associated wells |
| 12/27/2013 | WO2013149932A3 Method of pumping fluid |
| 12/27/2013 | WO2013137781A3 Downhole filter |
| 12/27/2013 | WO2012149202A3 Subsea accumulator system |
| 12/27/2013 | WO2012148804A3 Acoustic telemetry of subsea measurements from an offshore well |
| 12/27/2013 | CA2877319A1 Self-degrading ionically cross-linked biopolymer composition for well treatment |
| 12/27/2013 | CA2876193A1 Breaking diutan with metal activator down to 140 °f or lower |
| 12/27/2013 | CA2876103A1 Method of treating a subterranean formation with a mortar slurry designed to form a permeable mortar |
| 12/27/2013 | CA2875100A1 Subterranean antenna including antenna element and coaxial line therein and related methods |
| 12/26/2013 | US20130341924 Process for enhanced oil recovery using capture of carbon dioxide |
| 12/26/2013 | US20130341247 Microwave-promoted desulfurization of crude oil |
| 12/26/2013 | US20130341246 Reducing the carbon emissions intensity of a fuel |
| 12/26/2013 | US20130341179 Production of Methane from Abundant Hydrate Deposits |
| 12/26/2013 | US20130341033 Diffuser for cable suspended dewatering pumping system |
| 12/26/2013 | US20130341031 Insensitive explosive composition and method of fracturing rock using an extrudable form of the composition |
| 12/26/2013 | US20130341030 Methods of improving hydraulic fracture network |
| 12/26/2013 | US20130341029 High strain rate method of producing optimized fracture networks in reservoirs |
| 12/26/2013 | US20130341026 Fracturing apparatus |
| 12/26/2013 | US20130341024 Method of treating a subterranean formation with a mortar slurry designed to form a permeable mortar |
| 12/26/2013 | US20130341023 Use of metal silicides in hydrocarbon production and transportation |
| 12/26/2013 | US20130341022 Methods of Using Nanoparticle Suspension Aids in Subterranean Operations |
| 12/26/2013 | US20130341020 Methods of Using Nanoparticle Suspension Aids in Subterranean Operations |
| 12/26/2013 | US20130341017 Downhole debris removal tool capable of providing a hydraulic barrier and methods of using same |
| 12/26/2013 | US20130341015 Downhole combustor |
| 12/26/2013 | US20130341013 Methods for real time control of a mobile rig |
| 12/26/2013 | US20130341010 Method for Fracturing a Formation Using a Fracturing Fluid Mixture |
| 12/26/2013 | US20130341005 Downhole Method and Apparatus |
| 12/26/2013 | US20130340997 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 12/26/2013 | US20130340643 Shaped charge liner |
| 12/26/2013 | US20130340599 Reusable perforating gun and port plug |
| 12/26/2013 | CA2820777A1 Two-step hydraulic valve |
| 12/26/2013 | CA2820498A1 Production process for a geological reservoir based on a stock reservoir using a multi-scale configuration |
| 12/25/2013 | EP2677116A1 Method and apparatus to detect an oil/water contact |
| 12/25/2013 | EP2677115A1 A predictive flow assurance assessment method and system |
| 12/25/2013 | EP2675995A1 Igniting an underground coal seam in an underground coal gasification process, ucg |
| 12/25/2013 | EP2675994A1 Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
| 12/25/2013 | EP2675993A1 Cement slurry monitoring |
| 12/25/2013 | EP2675543A1 Gas trap |
| 12/25/2013 | EP2494145B1 Automated hydrocarbon reservoir pressure estimation |
| 12/25/2013 | EP2432966B1 Cable suspended pumping system |
| 12/25/2013 | EP2065553B1 System and method for drilling lateral boreholes |
| 12/25/2013 | CN203368220U Oil pumping machine torque motor and motor generator |
| 12/25/2013 | CN203366022U Automatic oil extraction control system based on online liquid level measurement |
| 12/25/2013 | CN203362148U Fracturing pulse sand adding system capable of achieving ultrahigh flow conductivity |
| 12/25/2013 | CN203362147U Manifold capable of directly adding wax balls for fracturing construction |
| 12/25/2013 | CN203362146U Ultrahigh-pressure fracturing manifold equipment |
| 12/25/2013 | CN203362145U Fracturing and sand prevention integrated completion pipe column |
| 12/25/2013 | CN203362144U Multi-stage fracture operating tool string with balanced packers |
| 12/25/2013 | CN203362143U Horizontal well one-trip drilling fracture completion string |
| 12/25/2013 | CN203362142U Actuating and differential pressure type fracturing sliding sleeve |