| 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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| 06/18/2008 | CN201074498Y Back-off affusion packer |
| 06/18/2008 | CN201074497Y Back-off affusion packer |
| 06/18/2008 | CN201074485Y Walking beam type oil extractor hook |
| 06/18/2008 | CN101203657A Riser installation method from an offshore production unit |
| 06/18/2008 | CN101201616A System and method for automating or metering fluid recovered at a well |
| 06/18/2008 | CN101201001A Mining working integral pumping unit |
| 06/18/2008 | CN101201000A Flexible driving mechanism oil pumping device |
| 06/18/2008 | CN101200999A Highly effective insulated tube coupling |
| 06/18/2008 | CN101200993A Portable pump well mouth manipulation ladder |
| 06/18/2008 | CN100395474C Sealing method, sealing connection mechanism, sealing mechanism and sealing |
| 06/18/2008 | CN100395429C Injection pretreatment method for oil water well |
| 06/18/2008 | CN100395428C Cracking four-linking technology |
| 06/18/2008 | CN100395427C Oil production method with no pole and oil production system |
| 06/18/2008 | CN100395002C Device for separating incompatible gas-liquid two phase and liquid-liquid two phase |
| 06/17/2008 | US7389185 Methods and systems for determining reservoir properties of subterranean formations with pre-existing fractures |
| 06/17/2008 | US7387985 comprises aqueous brine and pre-gelatinized crosslinked amylopectin starch; xanthan gum free |
| 06/17/2008 | US7387174 Device and method of lining a wellbore |
| 06/17/2008 | US7387169 Expandable tubulars |
| 06/17/2008 | US7387168 Sealing tubing |
| 06/17/2008 | US7387166 Electrically operated actuation tool for subsea completion system components |
| 06/17/2008 | US7387165 System for completing multiple well intervals |
| 06/17/2008 | US7387164 Method and apparatus for selective injection or flow control with through-tubing operation capacity |
| 06/17/2008 | US7387163 In-situ landfill gas well perforation method and apparatus |
| 06/17/2008 | US7387161 Determination of well shut-in time for curing resin-coated proppant particles |
| 06/17/2008 | US7387156 Perforating safety system |
| 06/17/2008 | CA2572596C Flow control apparatus for use in a wellbore |
| 06/17/2008 | CA2553071C Method for intensification of high-viscosity oil production and apparatus for its implementation |
| 06/17/2008 | CA2486348C Choke valve with temperature transmitter |
| 06/17/2008 | CA2462994C Methods and compositions for consolidating proppant in subterranean fractures |
| 06/17/2008 | CA2456107C Fracture closure pressure determination |
| 06/17/2008 | CA2450337C Providing electrical isolation for a downhole device |
| 06/17/2008 | CA2446888C A high-energy combined well perforating device |
| 06/17/2008 | CA2438134C Process for predicting porosity and permeability of a coal bed |
| 06/17/2008 | CA2423096C Low residue well treatment fluids and methods of use |
| 06/17/2008 | CA2381286C Drilling and completion system for multilateral wells |
| 06/17/2008 | CA2373164C Recovery of production fluids from an oil or gas well |
| 06/17/2008 | CA2315374C A method of improving the flow properties of a crude oil or natural gas liquid |
| 06/12/2008 | WO2008070674A1 Flow restriction apparatus and methods |
| 06/12/2008 | WO2008070665A1 Emergency ballast system for semi-submersible drilling rigs |
| 06/12/2008 | WO2008070630A2 Method for preventing overpressure |
| 06/12/2008 | WO2008070271A2 System and method for facilitating downhole operations |
| 06/12/2008 | WO2008070193A2 Perforating gun assembly with auger to control wellbore fluid dynamics |
| 06/12/2008 | WO2008070035A2 Particle stabilized emulsions for enhanced hydrocarbon recovery |
| 06/12/2008 | WO2008069914A2 Oil well stage-cementing metal plate |
| 06/12/2008 | WO2008069820A1 Reactive stimulation of oil and gas wells |
| 06/12/2008 | WO2008067772A1 Buffer unit for perforation testing system of oil/gas well |
| 06/12/2008 | WO2008067771A1 Balance weight device of perforator for horizontal oilwell |
| 06/12/2008 | WO2008036553A3 Gravel pack apparatus that includes a swellable element |
| 06/12/2008 | WO2007145731A3 Compressible objects combined with a drilling fluid to form a variable density drilling mud |
| 06/12/2008 | US20080140369 Method for performing oilfield production operations |
| 06/12/2008 | US20080135299 Apparatus and Method for Characterizing a Reservoir |
| 06/12/2008 | US20080135262 System for Radially Expanding a Tubular Member |
| 06/12/2008 | US20080135259 Reciprocated Pump System For Use In Oil Wells |
| 06/12/2008 | US20080135258 Method for Preventing Overpressure |
| 06/12/2008 | US20080135257 Extracting gas hydrates from marine sediments |
| 06/12/2008 | US20080135252 Adjustable Expansion Cone Assembly |
| 06/12/2008 | US20080135247 Fracturing Fluid Loss Control Agent |
| 06/12/2008 | US20080135246 Sintered spherical pellets useful for gas and oil well proppants |
| 06/12/2008 | US20080135245 Composition and Method For Making a Proppant |
| 06/12/2008 | US20080135244 Heating hydrocarbon containing formations in a line drive staged process |
| 06/12/2008 | US20080135243 Method of Reducing Water Influx Into Gas Wells |
| 06/12/2008 | US20080135242 Heterogeneous Proppant Placement in a Fracture with Removable Channelant Fill |
| 06/12/2008 | US20080135241 Wastewater disposal with in situ steam production |
| 06/12/2008 | US20080135238 Method and apparatus for disposal of well flare gas in oil and gas drilling and recovery operations |
| 06/12/2008 | US20080135234 Method for Increasing Oilfield Recovery Rates and Oil Production |
| 06/12/2008 | US20080135233 Methods for Development of an Offshore Oil and Gas Field |
| 06/12/2008 | US20080134925 Shaped Charge Assembly and Method of Damaging a Target |
| 06/12/2008 | US20080134775 Apparatus and methods for obtaining measurements below bottom sealing elements of a straddle tool |
| 06/12/2008 | US20080134508 Method to Provide Slots in Pipes |
| 06/12/2008 | CA2673102A1 System and method for facilitating downhole operations |
| 06/12/2008 | CA2670986A1 Particle stabilized emulsions for enhanced hydrocarbon recovery |
| 06/12/2008 | CA2668855A1 Methods of treating subterranean formations using hydrophobically modified polymers and compositions of the same |
| 06/12/2008 | CA2667377A1 Methods and apparatuses for electronic time delay and systems including same |
| 06/12/2008 | CA2611047A1 Fracturing fluid loss control agent |
| 06/12/2008 | CA2610907A1 Apparatus and methods for obtaining measurements below bottom sealing elements of a straddle tool |
| 06/12/2008 | CA2610894A1 Fluid loss control and well cleanup methods |
| 06/12/2008 | CA2570953A1 Fracturing fluid and method for fracturing subterranean formations |
| 06/11/2008 | EP1930541A2 Thermally activated well perforating safety system |
| 06/11/2008 | EP1930540A1 Low power miniature hydraulic actuator |
| 06/11/2008 | EP1929124A1 Method and device for separation of particles from injection water |
| 06/11/2008 | EP1929123A2 Method and apparatus associated with stimulation treatments for wells |
| 06/11/2008 | EP1929097A2 Wellbore apparatus and method for completion, production and injection |
| 06/11/2008 | EP1224438B1 Device and method for measuring fluid and solute fluxes in flow systems |
| 06/11/2008 | CN201071797Y Split type magnetic straight line oil pumping machine for oil field |
| 06/11/2008 | CN201071718Y Tubular pile type desander |
| 06/11/2008 | CN201071711Y Drill-free blind plate |
| 06/11/2008 | CN201071710Y Lateral oil feeding sand filter of oil production well |
| 06/11/2008 | CN201071709Y Sand filter of oil production well |
| 06/11/2008 | CN201071703Y High pressure water injection uniflow valve |
| 06/11/2008 | CN201071701Y Hydraulic blocking device of oil pipe |
| 06/11/2008 | CN201071697Y Plugging and acidizing well construction ground manifold |
| 06/11/2008 | CN101196184A Electric gear pump |
| 06/11/2008 | CN101196109A Three-segment type block releasing technique for oil layer |
| 06/11/2008 | CN101196108A Segmenting perturbation motion method of water driving sandstone oil accumuiation intermittent injection-production |
| 06/11/2008 | CN101196107A Pumping unit with rapid lowering, slow lifting sucker rod |
| 06/11/2008 | CN101196106A Air pressure type oil production device |
| 06/11/2008 | CN101196105A High energy-saving low cost balance beam type hydraulic pressure oil rig |
| 06/11/2008 | CN101196101A Adjustable multifunctional creep grinding device of power measuring suite |
| 06/11/2008 | CN100394027C Single pump barrel two plunger pistons two circulation thick oil pump |
| 06/10/2008 | US7385523 Apparatus and method for downhole well equipment and process management, identification, and operation |