| 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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| 01/25/2012 | CN102330545A Oil well sand prevention method for heavy oil reservoir |
| 01/25/2012 | CN101649897B Fluid coupling transmission box power unit for pumping unit |
| 01/25/2012 | CN101629483B Power balance oil extractor |
| 01/25/2012 | CN101597108B Method for reducing scaling between oil field oil extraction transportation system and stratum |
| 01/25/2012 | CN101418679B Method for pumping coalbed gas by heating coal bed |
| 01/25/2012 | CN101307687B Welding straight-line joint type sieve tube |
| 01/25/2012 | CN101203657B Riser installation method from an offshore production unit |
| 01/24/2012 | US8101557 Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids |
| 01/24/2012 | US8101556 Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods |
| 01/24/2012 | US8100199 Continuous fluid circulation valve for well drilling |
| 01/24/2012 | US8100186 Expansion system for expandable tubulars and method of expanding thereof |
| 01/24/2012 | US8100183 Reinforced polymeric siphon tubes |
| 01/24/2012 | US8100182 Loose tube flying lead assembly |
| 01/24/2012 | US8100178 Method of oil recovery using a foamy oil-external emulsion |
| 01/24/2012 | US8100176 Device for removing liquids from the well-bore of a gas producing well |
| 01/24/2012 | CA2729208C Methods of delaying the curing of moisture sensitive curable elastomers |
| 01/24/2012 | CA2668475C Valve for equalizer sand screens |
| 01/24/2012 | CA2645818C Energized fluids and pressure manipulation for subsurface applications |
| 01/24/2012 | CA2604876C Well bore fluid redistribution and fluid disposal |
| 01/24/2012 | CA2529135C System and method for transmitting electric power into a bore hole |
| 01/24/2012 | CA2423762C Cement shoe assembly for monobore well |
| 01/19/2012 | WO2012009184A2 Water sensitive porous medium to control downhole water production and method therefor |
| 01/19/2012 | WO2012009099A1 Auto-production frac tool |
| 01/19/2012 | WO2012007389A2 Safeguarding arrangement for collecting a fluid escaping into a body of water |
| 01/19/2012 | WO2012007357A1 Safety device, particularly for containing leaks along damaged fluid pipes |
| 01/19/2012 | WO2012006951A1 Tower assembly transmission numerical controlled oil extractor |
| 01/19/2012 | WO2012006685A1 Separator assembly |
| 01/19/2012 | WO2011150213A3 Deployment of downhole pump using a cable |
| 01/19/2012 | WO2011147031A3 Downhole gas release apparatus |
| 01/19/2012 | WO2011146549A9 Method for drilling through nuisance hydrocarbon formations |
| 01/19/2012 | WO2011146169A3 System and method for regulating pressure within a well annulus |
| 01/19/2012 | WO2011143569A3 Prevention or mitigation of steel corrosion caused by combustion gas |
| 01/19/2012 | WO2011140286A3 Methods and apparatus for promoting production of catalytic generated hydrocarbons |
| 01/19/2012 | WO2011109270A3 Downhole static power generator |
| 01/19/2012 | US20120012390 Drilling device and drilling method |
| 01/19/2012 | US20120012336 Casing hanger profile for multiple seal landing positions |
| 01/19/2012 | US20120012333 System and Methods for Removing Fluids from a Subterranean Well |
| 01/19/2012 | US20120012332 Intake for shrouded electric submersible pump assembly |
| 01/19/2012 | US20120012331 Method for disconnecting a device for transferring fluid between the bottom of an expanse of water and the surface, and associated transfer device |
| 01/19/2012 | US20120012328 Dual gradient pipeline evacuation method |
| 01/19/2012 | US20120012326 Shaped Compressed Pellets for Slow Release of Well Treatment Agents Into a Well and Methods of Using Same |
| 01/19/2012 | US20120012325 High temperature stabilizer for well treatment fluids and methods of using same |
| 01/19/2012 | US20120012324 Method of fracturing a subterranean formation at optimized and pre-determined conditions |
| 01/19/2012 | US20120012323 Method of fracturing a subterranean formation at optimized and pre-determined conditions |
| 01/19/2012 | US20120012322 Auto-production frac tool |
| 01/19/2012 | US20120012321 Method for Producing Natural Gas from Hydrocarbon Hydrates While Simultaneously Storing Carbon Dioxide in Geological Formations |
| 01/19/2012 | US20120012320 Polymerizing and anchoring a water-soluble polymer to an in-place mineral surface of a well |
| 01/19/2012 | US20120012319 Enhanced hydrocarbon recovery using microwave heating |
| 01/19/2012 | US20120012317 Solid Zirconium-Based Cross-Linking Agent and Use in Oil Field Applications |
| 01/19/2012 | US20120012316 Solid Zirconium-Based Cross-Linking Agent and Use in Oil Field Applications |
| 01/19/2012 | US20120012313 Method of fracturing a subterranean formation at optimized and pre-determined conditions |
| 01/19/2012 | US20120012312 System and Method for Facilitating Downhole Operations |
| 01/19/2012 | US20120012311 Surfactant Mixtures for Tertiary Oil Recovery |
| 01/19/2012 | US20120012310 Apparatus and methods for deploying equipment at a wellsite |
| 01/19/2012 | US20120012309 Flow Back Recovery System |
| 01/19/2012 | US20120012307 Method for removing contaminants from wastewater in hydraulic fracturing process |
| 01/19/2012 | DE102010051164A1 Schutzeinrichtung zum Auffangen eines in ein Gewässer entweichenden Fluids Protection means for collecting a fluid escaping into a water body |
| 01/19/2012 | DE102010036380A1 Method for temporary closing of deep sea hole, involves inserting two injection lines into damaged wellhead, and injecting liquid nitrogen and water simultaneously into damaged wellhead through injection lines under high pressure |
| 01/19/2012 | CA2804747A1 Auto-production frac tool |
| 01/19/2012 | CA2804663A1 Water sensitive porous medium to control downhole water production and method therefor |
| 01/19/2012 | CA2804393A1 Separator assembly |
| 01/19/2012 | CA2802947A1 Safeguarding arrangement for collecting a fluid escaping into a body of water |
| 01/18/2012 | EP2407635A2 Apparatus and methods for running liners |
| 01/18/2012 | EP2406499A1 Drain liquid relief system for a subsea compressor and a method for draining the subsea compressor |
| 01/18/2012 | EP2406460A1 Fluid injection |
| 01/18/2012 | EP2406459A2 System and method for dynamically adjusting the center of gravity of a perforating apparatus |
| 01/18/2012 | EP2406458A1 Use of barite in perforating devices |
| 01/18/2012 | EP2406353A2 Carbon management and sequestration from encapsulated control infrastructures |
| 01/18/2012 | EP2406352A2 Methods of recovering minerals from hydrocarbonaceous material using a constructed infrastructure and associated systems |
| 01/18/2012 | EP1848875B1 Flow regulator for use in a subterranean well |
| 01/18/2012 | CN202120062U Novel energy-saving efficiency-boosting control system of beam oil pumping unit |
| 01/18/2012 | CN202120054U Intelligent energy saving controller for oil pumping unit |
| 01/18/2012 | CN202117657U High-temperature perforator tester for oil and gas wells |
| 01/18/2012 | CN202117650U Oil-gas mixed convey liquid reinjection system |
| 01/18/2012 | CN202117649U Multi-pulse sand-adding high-energy gas fracture bomb |
| 01/18/2012 | CN202117648U One-level two-segment insert-seal injection-divided tubular pile capable of backwashing wells |
| 01/18/2012 | CN202117647U Anti-flow-splitting bridge type eccentric water distributor for well cleanup |
| 01/18/2012 | CN202117646U Ultrasonic excitation coal mass strong solution and permeation increase experimental apparatus |
| 01/18/2012 | CN202117645U Two-layer section hydraulic adjustable bottom-hole regulator |
| 01/18/2012 | CN202117644U Secondary explosion energy-release shaped charge liner |
| 01/18/2012 | CN202117643U Novel ignition device |
| 01/18/2012 | CN202117642U Sand-control screen pipe sintered with star holes |
| 01/18/2012 | CN202117641U Water plugging and sand preventing screen tube |
| 01/18/2012 | CN202117640U Three-dimensional natural gas hydrate experimental device |
| 01/18/2012 | CN202117639U Balance weight adjustor for oil pumping unit |
| 01/18/2012 | CN202117638U Novel gas lifting downhole tool of continuous oil tube |
| 01/18/2012 | CN202117637U Dynamic balance beam oil pumping unit |
| 01/18/2012 | CN202117636U Low-stroke-frequency down-eccentric barbell type pumping unit |
| 01/18/2012 | CN202117627U Overflow preventing device |
| 01/18/2012 | CN202117626U Disassembly-free flow controller for filtration |
| 01/18/2012 | CN202117613U Extension type slidingly sealing device |
| 01/18/2012 | CN202117600U Direct control dropping and fishing device |
| 01/18/2012 | CN202117564U Underground traveling type slurry pumping construction device for small-sized construction passageway |
| 01/18/2012 | CN102325962A Systems and methods for producing oil and/or gas |
| 01/18/2012 | CN102325961A Systems and methods for producing oil and/or gas |
| 01/18/2012 | CN102325960A Systems and methods for producing oil and/or gas |
| 01/18/2012 | CN102325959A Water treatment following shale oil production by in situ heating |
| 01/18/2012 | CN102325958A Screen flow equalization system |
| 01/18/2012 | CN102322255A Method, device and system for detecting on-site steam-injection and heat-insulation oil pipe |
| 01/18/2012 | CN102322254A Downhole steam entry profile monitoring method |