| 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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| 08/03/2011 | CN201915918U Oil and gas well downhole liquid-electric fracturing composite perforator |
| 08/03/2011 | CN201915917U 喷砂射孔器 Sandblasting perforator |
| 08/03/2011 | CN201915916U 分层压裂防砂管柱 Stratified sand fracturing string |
| 08/03/2011 | CN201915915U 带有弧形贴板的游梁式抽油机驴头 Horse head beam pumping unit with a curved stick plates |
| 08/03/2011 | CN201915914U 具有能量回收作用的液压抽油装置 Hydraulic energy recovery has the effect of an oil rig |
| 08/03/2011 | CN201915913U 偏心平衡举升装置 Eccentric balancing lifting device |
| 08/03/2011 | CN201915912U Stroke increasing oil pumping unit for cluster well |
| 08/03/2011 | CN201915911U 一种节能抽油机的动力装置 An energy-efficient power plant pumping |
| 08/03/2011 | CN201915910U 抽油机自动平衡装置 Pumping automatic balancing device |
| 08/03/2011 | CN201915909U 一种螺杆抽油机密封 A screw pumping seal |
| 08/03/2011 | CN201915908U 抽油机皮带调节装置 Pumping belt adjusting device |
| 08/03/2011 | CN201915907U 油井套管油收油移动装置 Well casing oil skimmers mobile devices |
| 08/03/2011 | CN201915894U 一种锁球式坐封球座 One kind of lock packer tee ball |
| 08/03/2011 | CN201915864U 抽油机自动调节悬绳器 Pumping unit automatically adjusts the suspension rope |
| 08/03/2011 | CN201915854U 整体套装式隔热油管连接结构 Overall package type insulated tubing connecting structure |
| 08/03/2011 | CN201915852U 高含蜡油井抽油管柱 High waxy oil well pumping string |
| 08/03/2011 | CN201912897U 压裂工作液添加剂加入装置 Fracturing fluid additives device |
| 08/03/2011 | CN102144075A Maintaining shale stability by pore plugging |
| 08/03/2011 | CN102144074A Methods for downhole sequestration of carbon dioxide |
| 08/03/2011 | CN102141021A Method and device for improving loading capacity of passive pressurization and decompression device |
| 08/03/2011 | CN102140912A Underground monitoring device of intelligent well |
| 08/03/2011 | CN102140909A Method for reducing viscosity of heavy oil by emulsification |
| 08/03/2011 | CN102140908A Device, system and method for evaluating sand prevention performance of sand prevention sieve pipe |
| 08/03/2011 | CN102140907A Method for collecting methane from combustible ice |
| 08/03/2011 | CN102140906A Double-roller tower type oil-pumping unit device |
| 08/03/2011 | CN102140905A Flexible-transmission composite balanced oil sucking machine |
| 08/03/2011 | CN102140904A Single-side parallel linear motor combination-driven belt-type oil pumping machine |
| 08/03/2011 | CN102140903A Heat recovery type liquid nitrogen evaporation system |
| 08/03/2011 | CN102140338A Fluorocarbon surfactant binary composite foam flooding system |
| 08/03/2011 | CN102140337A Hydrophobically associating hydroxyethylcellulose oil displacement agent |
| 08/03/2011 | CN101555797B Extraction device for undersea gas hydrate and extraction method thereof |
| 08/03/2011 | CN101240700B Free gas layer-containing natural gas hydrate mining simulator |
| 08/02/2011 | US7989404 Compositions and methods for gas well treatment |
| 08/02/2011 | US7989401 Block copolymers for recovering hydrocarbon fluids from a subterranean reservoir |
| 08/02/2011 | US7989400 gelling agent is heteropolysaccharide diutan, and reducing the viscosity of the viscosified treatment fluid using an encapsulated breaker that comprises a peroxide and a coating material |
| 08/02/2011 | US7989398 Vesicles for carrying through conduit, separated by surface active material bilayer composed of phospholipids, alkyl polyglycosides, gemini surfactants, sorbitan monooleate, and/or sorbitan trioleate |
| 08/02/2011 | US7987913 Electrical submersible pump with equally loaded thrust bearings and method of pumping subterranean fluid |
| 08/02/2011 | US7987912 Reversible polymeric gelation for oilfield applications |
| 08/02/2011 | US7987911 Oil well perforators |
| 08/02/2011 | US7987910 Methods for manipulation of the flow of fluids in subterranean formations |
| 08/02/2011 | US7987909 Apparatus and methods for allowing fluid flow inside at least one screen and outside a pipe disposed in a well bore |
| 08/02/2011 | US7987908 Well treatment using a progressive cavity pump |
| 08/02/2011 | US7987907 Hydrocarbon recovery process |
| 08/02/2011 | US7987903 Apparatus and method for containing oil from a deep water oil well |
| 08/02/2011 | CA2660116C Distributed intelligence for enhanced monitoring and control of oilfield processes |
| 08/02/2011 | CA2634436C Methods, systems, and apparatus for production of hydrocarbons from a subterranean formation |
| 08/02/2011 | CA2617072C Subterranean wellbore apparatus |
| 08/02/2011 | CA2611841C Subterranean treatment fluids, friction reducing copolymers, and associated methods |
| 08/02/2011 | CA2608050C Flow nozzle assembly |
| 08/02/2011 | CA2458634C Method and plant for increasing oil recovery by gas injection |
| 08/02/2011 | CA2405631C System and method for fracturing a subterranean well formation for improving hydrocarbon production |
| 07/29/2011 | CA2729490A1 Downhole tubular expander and method |
| 07/29/2011 | CA2729435A1 Pressure pulse interaction management in a multiple pump system |
| 07/29/2011 | CA2729430A1 Recovery of hydrocarbons using artificial topseals |
| 07/29/2011 | CA2729218A1 Processes of recovering reserves with steam and carbon dioxide injection |
| 07/28/2011 | WO2011091143A2 System and method for filtering sand in a wellbore |
| 07/28/2011 | WO2011091139A1 Flow control system with sand screen |
| 07/28/2011 | WO2011090924A1 Systems and methods for producing oil and/or gas |
| 07/28/2011 | WO2011090916A1 Connector for mounting screen to bass pipe without welding or swaging |
| 07/28/2011 | WO2011090868A2 Single pump focused sampling |
| 07/28/2011 | WO2011090647A2 Electromagnetic formed shaped charge liners |
| 07/28/2011 | WO2011090636A1 System and method of dynamic underbalanced perforating using an isolation fluid |
| 07/28/2011 | WO2011090601A1 Dual completion string gravel pack system and method |
| 07/28/2011 | WO2011089405A2 Multi-phase conductor shoe for use with electrical submersible pump |
| 07/28/2011 | WO2011089156A1 A device for intervention in a well comprising a pyrotechnic system, installation and method associated therewith |
| 07/28/2011 | WO2011089151A2 Method for producing methane gas |
| 07/28/2011 | WO2011088572A1 Outside casing conveyed low flow impedance sensor gauge system and method |
| 07/28/2011 | WO2011088556A1 Compositions and methods for enhancing fluid recovery for hydraulic fracturing treatments |
| 07/28/2011 | WO2011088517A1 Networked infield compression |
| 07/28/2011 | WO2011071683A3 Offset interior slurry discharge |
| 07/28/2011 | WO2011071642A3 Multiple port crossover tool with port selection feature |
| 07/28/2011 | WO2011068848A3 Method for monitoring hydrocarbon production |
| 07/28/2011 | WO2011068692A3 Surface separation system for separating fluids |
| 07/28/2011 | WO2011063170A3 Expansion system for expandable tubulars |
| 07/28/2011 | WO2011062991A3 Apparatus and methods for multi-layer wellbore construction |
| 07/28/2011 | WO2011053585A3 Method of mitigating corrosion rate of oilfield tubular goods |
| 07/28/2011 | WO2011050094A3 Steam distribution and conditioning assembly for enhanced oil recovery of viscous oil |
| 07/28/2011 | WO2011050092A3 System, method, and computer readable medium for calculating well flow rates produced with electrical submersible pumps |
| 07/28/2011 | WO2011034807A3 Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants |
| 07/28/2011 | WO2011031946A3 Compositions and methods for controlling the stability of ethersulfate surfactants at elevated temperatures |
| 07/28/2011 | WO2011031920A3 Process of using hard brine at high alkalinity for enhanced oil recovery (eor) applications |
| 07/28/2011 | WO2011015911A3 Stuffing box assembly |
| 07/28/2011 | WO2010150010A4 Apparatus and methods for forming and using subterranean salt cavern |
| 07/28/2011 | US20110183852 Block polymers, compositions and methods for use for foams, laundry detergents, and shower rinses and coagulants |
| 07/28/2011 | US20110180275 Bi-Metallic Annular Seal and Wellhead System Incorporating Same |
| 07/28/2011 | US20110180271 Integrated Completion String and Method for Making and Using |
| 07/28/2011 | US20110180267 Battery-Powered and Logic-Controlled Gas Lift Valve for Use in Wells and Methods of Using and Making Same |
| 07/28/2011 | US20110180266 Drill ship for deep sea intervention operations |
| 07/28/2011 | US20110180264 Method and device for filling a void incompletely filled by a cast material |
| 07/28/2011 | US20110180263 Method For Improving Hydraulic Fracturing Efficiency And Natural Gas Production |
| 07/28/2011 | US20110180262 Method of liquefaction of carbonaceous material to liquid hydrocarbon |
| 07/28/2011 | US20110180260 Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 07/28/2011 | US20110180259 Hydraulic Fracturing Proppants |
| 07/28/2011 | US20110180258 Flow control system with sand screen |
| 07/28/2011 | US20110180257 System and method for filtering sand in a wellbore |
| 07/28/2011 | US20110180256 Chrome free water-based wellbore fluid |
| 07/28/2011 | US20110180255 Enhanced oil recovery method using associative polymers. |
| 07/28/2011 | US20110180254 Systems and methods for producing oil and/or gas |
| 07/28/2011 | US20110180253 Method of producing gaseous and liquid components from one or more multi-phase streams and apparatus therefor |
| 07/28/2011 | CA2787534A1 Outside casing conveyed low flow impedance sensor gauge system and method |