| 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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| 09/11/2008 | US20080217013 Tunable surfactants for oil recovery applications |
| 09/11/2008 | US20080217012 Gelled emulsions and methods of using the same |
| 09/11/2008 | US20080217010 Polyphenylene Sulfide Proppants |
| 09/11/2008 | US20080217009 High performance foams for unloading gas wells |
| 09/11/2008 | US20080217008 Recovering light oils from an oil well of heavy oils and bitumens byusing nanoparticles of a hydrorefining catalysts, heating the heavy crude by steaming by an in-situ steam generator, and exposing to a reducing agent; extraction of desulfurized light oils; fluid flow; industrial scale |
| 09/11/2008 | US20080217004 Heating hydrocarbon containing formations in a checkerboard pattern staged process |
| 09/11/2008 | US20080217003 Gas injection to inhibit migration during an in situ heat treatment process |
| 09/11/2008 | US20080217002 Sand control screen having a micro-perforated filtration layer |
| 09/11/2008 | US20080217001 Flow control device for choking inflowing fluids in a well |
| 09/10/2008 | EP1967691A1 Debris protection for sliding sleeve |
| 09/10/2008 | EP1967690A2 High-strength sealed connection for expandable tubulars |
| 09/10/2008 | EP1966347A2 Amino acid, carbohydrate and acrylamide polymers useful as flocculants in agricultural and industrial settings |
| 09/10/2008 | CN201113894Y Oil pump energy-saving device |
| 09/10/2008 | CN201113637Y Oil pumping machine electric motor foundation intelligent positioning device |
| 09/10/2008 | CN201111546Y Combination type oil pumping machine |
| 09/10/2008 | CN201111545Y Hydraulic oil production machine |
| 09/10/2008 | CN101263216A Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process |
| 09/10/2008 | CN101261169A Crossbeam type oil pumping machine feed sensor calibration system and its calibration method |
| 09/10/2008 | CN101260801A Well drilling hot melt separate zone production technology for oil-containing low infiltration native sulphur deposit |
| 09/10/2008 | CN101260800A Electromagnetical linearly adjusted flux device for down-hole injection-production |
| 09/10/2008 | CN101260799A Perforating bullet |
| 09/10/2008 | CN101260798A Oil well oil conduit sand-baffling device |
| 09/10/2008 | CN101260797A Filtering material for oil well sand preventing screen pipe and method for making same |
| 09/10/2008 | CN101260796A Underground balancing drum long stroke pumping unit |
| 09/10/2008 | CN101260795A Circulating piping oil extraction device |
| 09/10/2008 | CN101260794A Cylinder type oil pumping machine |
| 09/10/2008 | CN100417711C Supersonic wing of supersonic spiral natural-gas separator |
| 09/09/2008 | US7422069 Telescoping centralizers for expandable tubulars |
| 09/09/2008 | US7422068 Casing patch overshot |
| 09/09/2008 | US7422067 Deploying an assembly into a well |
| 09/09/2008 | US7422066 System for direct vertical connection between contiguous subsea equipment and method of installation of said connection |
| 09/09/2008 | US7422064 High performance foams for unloading gas wells |
| 09/09/2008 | US7422063 Hydrocarbon recovery from subterranean formations |
| 09/09/2008 | US7422059 Fluid injection stimulated heavy oil or mineral production system |
| 09/09/2008 | CA2509180C A frameless switched reluctance motor and application as a top drive for a rotary pump |
| 09/09/2008 | CA2471599C Method and apparatus for placement of multiple fractures in open hole wells |
| 09/09/2008 | CA2465384C Gas turbine system comprising closed system of fuel and combustion gas using underground coal bed |
| 09/09/2008 | CA2460829C Improving collapse resistance of tubing |
| 09/09/2008 | CA2451334C Fracturing fluids and methods of making and using same |
| 09/09/2008 | CA2409281C Sintered tungsten liners for shaped charges |
| 09/09/2008 | CA2400597C Lightweight methods and compositions for well treating |
| 09/08/2008 | CA2624405A1 Expansion system |
| 09/08/2008 | CA2620481A1 Debris protection for sliding sleeve |
| 09/04/2008 | WO2008106639A2 Improved system and method for stimulating multiple production zones in a wellbore |
| 09/04/2008 | WO2008106476A1 System and method for waterflood performance monitoring |
| 09/04/2008 | WO2008106239A1 Tubingless electrical submersible pump installation |
| 09/04/2008 | WO2008105678A1 Proppant and method for higher production of a well |
| 09/04/2008 | WO2008060893A3 Large bore packer and methods of setting same |
| 09/04/2008 | WO2008011525A3 System and method for unloading water from gas wells |
| 09/04/2008 | US20080214072 Apparatus And Method For Connection And Disconnection Of A Marine Riser |
| 09/04/2008 | US20080213114 Pump |
| 09/04/2008 | US20080210436 Method for Delivering a Multi Phase Mixture and Pump Installation |
| 09/04/2008 | US20080210434 Subsea Tanker Hydrocarbon Production System |
| 09/04/2008 | US20080210432 System and Vessel for Supporting Offshore Fields |
| 09/04/2008 | US20080210430 Wellbore system for producing fluid |
| 09/04/2008 | US20080210429 System and method for stimulating multiple production zones in a wellbore |
| 09/04/2008 | US20080210427 Methods Using Fluid Stream for Selective Stimulation of Reservoir Layers |
| 09/04/2008 | US20080210426 Erosional protection of fiber optic cable |
| 09/04/2008 | US20080210425 Connector for perforating gun tandem |
| 09/04/2008 | US20080210424 Apparatus and Method of Fracturing |
| 09/04/2008 | US20080210423 Circulated Degradable Material Assisted Diversion |
| 09/04/2008 | US20080210421 Tagged Propping Agents and Related Methods |
| 09/04/2008 | US20080210417 Gas anchor and solids separator assembly for use with sucker rod pump |
| 09/04/2008 | US20080209710 Well Screen Fabrication |
| 09/04/2008 | CA2679582A1 System and method for waterflood performance monitoring |
| 09/03/2008 | EP1965020A1 Protective sleeve for expandable threaded connections |
| 09/03/2008 | EP1963726A1 External protection for expandable tubular threaded joints |
| 09/03/2008 | EP1963621A1 Combined nitrogen generation system and well servicing fluid system in one power unit apparatus |
| 09/03/2008 | EP1963620A1 A method and a device for destructing organic material in injection water and use of injection water for generation of destructive hydroxyl radicals |
| 09/03/2008 | EP1963619A2 Profile control apparatus and method for production and injection wells |
| 09/03/2008 | EP1963614A1 Method and apparatus to hydraulically bypass a well tool |
| 09/03/2008 | EP1962986A1 A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas |
| 09/03/2008 | EP1711681B1 Annulus plugging detection using a pressure transmitter in gas-lift oil production |
| 09/03/2008 | CN201110261Y Device for guiding globe valve of oil well pump |
| 09/03/2008 | CN201110170Y System for remote measuring-controlling manufacturing parameter of solar power supply complete-wireless transmitter water injection well |
| 09/03/2008 | CN201110169Y Eddy backfill apparatus |
| 09/03/2008 | CN201110168Y System for remotely measuring-controlling manufacturing parameter of complete-wireless transmitter oil well |
| 09/03/2008 | CN201110163Y Ir-kill-job environment protection operation fluid pressure control uncoupling machine for water injection well |
| 09/03/2008 | CN201110160Y Combined reverse-filling resistance oil nozzle sleeve |
| 09/03/2008 | CN201110150Y Central tube type double-tube thermal-picking cellar connection |
| 09/03/2008 | CN201110149Y Picking-infusion-measurement multifunctional cellar connection |
| 09/03/2008 | CN201110148Y Novel steam drive cellar connection |
| 09/03/2008 | CN101258302A Containerised modular processing system |
| 09/03/2008 | CN101255790A Locating method and fuze for intelligent tracing cased well |
| 09/03/2008 | CN101255789A Method for acidification to dispel block |
| 09/03/2008 | CN101255788A Thermochemistry auxiliary reinforced steam flooding method |
| 09/03/2008 | CN101255787A Method for controlling the flow of fluid between a downhole formation and a base pipe |
| 09/03/2008 | CN101255786A Method for backfilling and prevention of sand in horizontal well pipe |
| 09/03/2008 | CN100416735C Microelectromechanical devices |
| 09/03/2008 | CN100416040C Low-density fluid generator |
| 09/02/2008 | US7419939 Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002) |
| 09/02/2008 | US7419938 Process for treating an oil well |
| 09/02/2008 | US7419223 System and method for enhancing permeability of a subterranean zone at a horizontal well bore |
| 09/02/2008 | US7419193 Tubing connector |
| 09/02/2008 | US7419009 Apparatus for radially expanding and plastically deforming a tubular member |
| 09/02/2008 | US7419007 Retrievable downhole pumping system |
| 09/02/2008 | US7419005 Method of stimulating long horizontal wells to improve well productivity |
| 09/02/2008 | US7419004 Method of gravel packing with oil-based carrier fluid |
| 09/02/2008 | US7419002 Flow control device for choking inflowing fluids in a well |
| 09/02/2008 | CA2488464C Rotary and reciprocal well pump system |