| 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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| 01/20/2011 | CA2821345A1 Wellbore laser operations |
| 01/20/2011 | CA2821344A1 Wellbore laser operations |
| 01/20/2011 | CA2775448A1 Method and apparatus for a downhole gas generator |
| 01/20/2011 | CA2768229A1 Apparatus and method for controlling flow of solids into wellbores using filter media containing an array of three-dimensional elements |
| 01/20/2011 | CA2768168A1 Downhole intervention |
| 01/20/2011 | CA2768165A1 Production riser |
| 01/20/2011 | CA2767874A1 Process |
| 01/20/2011 | CA2766786A1 System and method for intermittent gas lift |
| 01/20/2011 | CA2766165A1 Wellbore laser operations |
| 01/19/2011 | EP2275641A1 Method of producing a combined gaseous hydrocarbon component stream and liquid hydrocarbon component streams, and an apparatus therefor |
| 01/19/2011 | EP2274603A1 Method, apparatus and system for characterizing two phase fluid flow in an injection well |
| 01/19/2011 | EP2274602A1 Apparatus and method for characterizing two phase fluid flow |
| 01/19/2011 | CN201717639U Novel electricity-saving device for oil pumping unit in oil field |
| 01/19/2011 | CN201714376U Metering device capable of rapidly searching abnormal oil wells |
| 01/19/2011 | CN201714367U Automatic digital unattended multi-well measuring device |
| 01/19/2011 | CN201714365U High-temperature high-pressure perforation flow efficiency detection system |
| 01/19/2011 | CN201714364U Tubular column for horizontal well barefoot well completion staged fracturing acidizing tool |
| 01/19/2011 | CN201714363U Device for exploiting thick-layer massive thick oil by controlling fire gas injection speed |
| 01/19/2011 | CN201714362U Underground intelligent chemical injection device |
| 01/19/2011 | CN201714361U Skid-mounted water injection equipment |
| 01/19/2011 | CN201714360U Anti-blocking throttle water nozzle |
| 01/19/2011 | CN201714359U Rapid perforating gun connector |
| 01/19/2011 | CN201714358U Straight slit trapezoidal self-cleaning sieve tube |
| 01/19/2011 | CN201714357U Horizontal well subsection filling transmitting pressure tool |
| 01/19/2011 | CN201714356U Casing gas recovery device for oil well in oil field |
| 01/19/2011 | CN201714355U Manual-electric dual purpose balancer of walking beam balanced pumping unit |
| 01/19/2011 | CN201714354U Electrical measuring instrument of petroleum pumping unit |
| 01/19/2011 | CN201714353U Electromagnetic soft brake for oil pumping units |
| 01/19/2011 | CN201714352U Hydraulic transmitting and folding stand type oil pumping unit |
| 01/19/2011 | CN201714351U Deep-pumping and load-reducing device of sucker rod pump |
| 01/19/2011 | CN201714350U Horsehead lateral rotation device for walking-beam pump unit |
| 01/19/2011 | CN201714349U Tower-type oil extractor braking circuit |
| 01/19/2011 | CN201714348U Brake protecting device of oil pumping unit |
| 01/19/2011 | CN201714347U Energy-saving wind power/network power combined system of oil pumping unit in oil field |
| 01/19/2011 | CN201714346U Belt type oil pumping unit actuating device |
| 01/19/2011 | CN201714345U Balancing device of pumping rod directly-balanced type energy-saving pumping unit |
| 01/19/2011 | CN201714344U Belt stabilizing device of reactive power reversing oil pumping device |
| 01/19/2011 | CN201714343U Flexible automatic reversing intelligent pumping unit |
| 01/19/2011 | CN201714342U Air suction device for dealing with oil leak of reducer of beam pumping unit |
| 01/19/2011 | CN101952545A Method and system for fracturing subsurface formations during the drilling thereof |
| 01/19/2011 | CN101952544A Method of hydraulic fracturing of horizontal wells, resulting in increased production |
| 01/19/2011 | CN101952543A Method of expanding a tubular element in a wellbore |
| 01/19/2011 | CN101952539A Systems and methods for improved positioning of pads |
| 01/19/2011 | CN101949284A Coalbed methane horizontal well system and construction method thereof |
| 01/19/2011 | CN101949283A Water reducing, de-plugging and yield increasing integrated process |
| 01/19/2011 | CN101949282A Oil displacing method for residual oil/asphalt emulsion |
| 01/19/2011 | CN101949281A Underground throttler |
| 01/19/2011 | CN101949280A Anti-scaling and anti-sand device connected with oil pumping tubing string into whole and application method |
| 01/19/2011 | CN101949279A Counterweight balancing vertical hydraulic pumping unit |
| 01/19/2011 | CN101949278A Protector of underground oil extraction machine |
| 01/19/2011 | CN101949277A Oil extraction method of weight adding under pump and oil well pump with weight adding under pump |
| 01/19/2011 | CN101949276A Rolling spiral drive linear pumping unit |
| 01/19/2011 | CN101949275A Automatic oil feeding and discharging device of novel vacuum technology for non-flowing well |
| 01/19/2011 | CN101164920B Deep treatment and resource regeneration method for oil field extracted waste water |
| 01/18/2011 | USRE42030 Critical velocity reduction in a gas well |
| 01/18/2011 | US7871963 surfactant is a carboxylated lignin, such as can be produced by reacting a lignin with an anhydride, such as a succinic anhydride or alkylated succinic anhydride; utility in energy-related applications; may be useful for enhanced oil recovery, for environmental remediation |
| 01/18/2011 | US7871702 Particulates comprising silica and alumina, and methods of utilizing these particulates in subterranean applications |
| 01/18/2011 | US7870905 Controlling the pressure within an annular volume of a wellbore |
| 01/18/2011 | US7870904 Enhanced hydrocarbon recovery by steam injection of oil sand formations |
| 01/18/2011 | US7870903 Inverse emulsion polymers as lost circulation material |
| 01/18/2011 | US7870902 Methods for allowing multiple fractures to be formed in a subterranean formation from an open hole well |
| 01/18/2011 | US7870901 Inhibiting formation face failure in oil and gas wells |
| 01/18/2011 | US7870899 Method for utilizing pressure variations as an energy source |
| 01/18/2011 | US7870898 Well flow control systems and methods |
| 01/18/2011 | US7870897 Dual function cleaning tool |
| 01/18/2011 | US7870894 Downhole cutting tool, using a single piece tubular with a radially displaceable portion |
| 01/17/2011 | CA2709241A1 In situ combustion with multiple staged producers |
| 01/15/2011 | CA2672137A1 Coil cone |
| 01/13/2011 | WO2011006173A2 Non-collapsing built in place adjustable swage |
| 01/13/2011 | WO2011005836A2 Methods for treating a wellbore |
| 01/13/2011 | WO2011005750A2 Fracturing system and method |
| 01/13/2011 | WO2011005725A2 Method and system for enhanced oil recovery |
| 01/13/2011 | WO2011005672A2 Methods for treating carbonate hydrocarbon-bearing formations with fluorinated amphoteric compounds |
| 01/13/2011 | WO2011005666A2 Methods for treating hydrocarbon-bearing formations with fluorinated acid compositions |
| 01/13/2011 | WO2011005460A2 Method for providing a temporary barrier in a flow pathway |
| 01/13/2011 | WO2011005415A1 Perforating guns with reduced internal volume |
| 01/13/2011 | WO2011005271A1 Forming multiple deviated wellbores |
| 01/13/2011 | WO2011005144A1 Downhole device |
| 01/13/2011 | WO2011005143A1 Well completion method |
| 01/13/2011 | WO2011005108A2 A down well tool with rolling means |
| 01/13/2011 | WO2011005107A2 A down hole well tool provided with a piston |
| 01/13/2011 | WO2011005104A2 A down hole well tool with expansion tool |
| 01/13/2011 | WO2011004161A2 Flow restrictor device |
| 01/13/2011 | WO2011003606A1 Method of enhanced oil recovery from geological reservoirs |
| 01/13/2011 | WO2011003157A1 Receiving lateral wellbore and method for implanting same |
| 01/13/2011 | WO2010124303A3 Processes and systems for treating oil and gas wells |
| 01/13/2011 | WO2010120677A3 Resilient anchor |
| 01/13/2011 | WO2010120538A3 Improved heat transfer through electrical submersible pump motor |
| 01/13/2011 | WO2010120469A3 Open hole frac system |
| 01/13/2011 | WO2010120466A3 Slickline conveyed bottom hole assembly with tractor |
| 01/13/2011 | WO2010118139A3 Securing layers in a well screen assembly |
| 01/13/2011 | WO2010117724A3 Well screens constructed utilizing pre-formed annular elements |
| 01/13/2011 | WO2010111638A3 Pressure compensation for a perforating gun |
| 01/13/2011 | WO2010102232A3 Wellbore strengthening material recovery |
| 01/13/2011 | US20110005969 Compositions and processes for fracturing subterranean formations |
| 01/13/2011 | US20110005773 Self healing filter-cake removal system for open hole completions |
| 01/13/2011 | US20110005772 System, device, and method of installation of a pump below a formation isolation valve |
| 01/13/2011 | US20110005771 Pfpe oils in esp motors, protectors and potheads |
| 01/13/2011 | US20110005762 Forming Multiple Deviated Wellbores |
| 01/13/2011 | US20110005761 Degradable Diverting Agents and Associated Methods |