| 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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| 07/24/2001 | US6266619 System and method for real time reservoir management |
| 07/24/2001 | US6263972 Coiled tubing screen and method of well completion |
| 07/24/2001 | US6263971 Multiphase production system suited for great water depths |
| 07/24/2001 | US6263970 Wellhead device for retaining the solid particles carried by the production fluid |
| 07/24/2001 | US6263968 Apparatus and methods for completing a wellbore |
| 07/24/2001 | US6263966 Expandable well screen |
| 07/24/2001 | US6263965 Multiple drain method for recovering oil from tar sand |
| 07/24/2001 | US6263730 Downhole pump strainer data recording device and method |
| 07/24/2001 | CA2077341C Dentifrice inhibiting dental plaque |
| 07/20/2001 | CA2331473A1 Fluid injection apparatus and method with controlled volume displacement for use in subterranean wells |
| 07/19/2001 | WO2001051843A1 Choke restrictor devices and methods |
| 07/19/2001 | WO2001051836A1 System for acquiring data from a facility and method |
| 07/19/2001 | WO2001051766A1 Filter for subterranean wells |
| 07/19/2001 | WO2001051765A1 Methods and systems for producing off-shore deep-water wells |
| 07/18/2001 | CN2439544Y Two purpose water injection mandrel for oil well/water well |
| 07/18/2001 | CN2439543Y Composite and three layer automatic adjustable water injection mandrel |
| 07/18/2001 | CN2439542Y Stainless steel plate net composite type petroleum sand screen |
| 07/18/2001 | CN1303987A Full-automatic control equipment for intermittently starting well pumping unit of oil field |
| 07/18/2001 | CN1303986A Secondary regeneration perforacting gun preparation process |
| 07/17/2001 | US6261029 Density-enhanced remediation of non-aqueous phase liquid contamination of subsurface environments |
| 07/17/2001 | US6260628 Use of static mixing element in connection with flow of gas and liquids through a production tubing |
| 07/17/2001 | US6260627 System and method for improving fluid dynamics of fluid produced from a well |
| 07/17/2001 | US6260626 Method and apparatus for completing an oil and gas well |
| 07/17/2001 | US6260622 Apparatus and method of injecting treatment fluids into a formation surrounding an underground borehole |
| 07/17/2001 | US6260621 Forcing particles into oil or gas formation under pressure; mixing with fatty ester and lower alkyl glycol ether; cleaning |
| 07/17/2001 | US6260620 Mixing with fatty acid alkyl ester and lower alkyl glycol ether; agitation |
| 07/17/2001 | US6260619 Oil and gas production with downhole separation and compression of gas |
| 07/17/2001 | US6260616 Downhole flow control devices |
| 07/17/2001 | CA2183032C Method for making slots in metal pipe |
| 07/17/2001 | CA2126904C Casing drive apparatus |
| 07/12/2001 | WO2001049970A1 Apparatus and method for treating and gravel-packing closely spaced zones |
| 07/12/2001 | WO2001049969A1 Flow control in a wellbore |
| 07/12/2001 | US20010007283 Method for boosting hydrocarbon production |
| 07/12/2001 | US20010007264 Choke restrictor devices and methods |
| 07/12/2001 | CA2355104A1 Apparatus and method for treating and gravel-packing closely spaced zones |
| 07/11/2001 | EP1114286A2 Method for transportation of low molecular weight hydrocarbons |
| 07/11/2001 | CN2438848Y Drip |
| 07/11/2001 | CN2438832Y Decompression joint for oil-well perforating gun |
| 07/11/2001 | CN2438831Y Antisand screen tube with external protective tube |
| 07/11/2001 | CN2438830Y Millipore sand control screen tube |
| 07/11/2001 | CN1303463A Encapsulated breaker slurry compositions and methods of use |
| 07/11/2001 | CN1302953A Pumping unit with lower centroidal and balanced running beam |
| 07/11/2001 | CN1302942A Oil recovery technique combining chemical handling with water blocking in oil well |
| 07/11/2001 | CN1302941A Method for eliminating pressure difference of pump tube in water injection system |
| 07/10/2001 | US6258859 Viscoelastic surfactant fluids and related methods of use |
| 07/10/2001 | US6257338 Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly |
| 07/10/2001 | US6257335 Stimulating fluid production from unconsolidated formations |
| 07/10/2001 | US6257334 Steam-assisted gravity drainage heavy oil recovery process |
| 07/10/2001 | US6257333 Reverse flow gas separator for progressing cavity submergible pumping systems |
| 07/10/2001 | US6257332 Well management system |
| 07/04/2001 | EP1112437A1 Method for the in-situ extraction of gas from coal seams |
| 07/04/2001 | EP0956428B1 Method for stabilizing the gas flow in water-bearing natural gas deposits or reservoirs |
| 07/04/2001 | CN2437854Y Fluid producing downhole sand removing forward hydrocyclone for oil well |
| 07/04/2001 | CN2437853Y Impact type full path detonating primer |
| 07/04/2001 | CN2437852Y Compound self-holing perforator for oil-gas well |
| 07/04/2001 | CN2437850Y Electric heating screw pump oil production apparatus |
| 07/03/2001 | US6255256 Mixture of hydrocarbon and additives |
| 07/03/2001 | US6254310 In-well air stripping and adsorption |
| 07/03/2001 | US6253855 Intelligent production riser |
| 07/03/2001 | US6253853 Fluid injection tubing assembly and method |
| 07/03/2001 | US6253852 Lateral branch junction for well casing |
| 07/03/2001 | US6253851 Method of completing a well |
| 07/03/2001 | US6253850 Selective zonal isolation within a slotted liner |
| 07/03/2001 | US6253848 Method of obtaining improved geophysical information about earth formations |
| 07/03/2001 | US6253846 Internal junction reinforcement and method of use |
| 07/03/2001 | US6253844 Swivelling device for a downhole rod pump, and method of use thereof |
| 07/03/2001 | CA2037974C Method and composition for delaying the gellation of borated gallactomannans |
| 06/28/2001 | WO2001046551A1 Tools and methods for use with expandable tubulars |
| 06/28/2001 | US20010005710 Injecting water and gas, possibly just water, into petroleum-carrying stratum of subsoil formation, whereby water and gas are injected by means of an injection well formed in subsoil formation |
| 06/28/2001 | US20010005483 Device and process intended for two-phase compression of a gas soluble in a solvent |
| 06/28/2001 | US20010004937 Hollow tubing pumping system |
| 06/27/2001 | EP1109974A1 Well riser lateral restraint and installation system for offshore platform |
| 06/27/2001 | CN2436685Y Pulsation gas lift oil production pump |
| 06/27/2001 | CN2436651Y Hydraulic machine for water-injection pipe system of oil field |
| 06/27/2001 | CN2436650Y Quantitative water injector |
| 06/27/2001 | CN2436649Y Metal felt sand screen pipe |
| 06/27/2001 | CN2436648Y Cyclone settler |
| 06/27/2001 | CN1300717A Water treating method for hot recovering heavy oil |
| 06/26/2001 | US6251346 Solution mining of carbonate/bicarbonate deposits to produce soda ash |
| 06/26/2001 | US6250848 Process for guidance, containment, treatment, and imaging in a subsurface environment utilizing ferro-fluids |
| 06/26/2001 | US6250392 Pump systems and methods |
| 06/26/2001 | US6250391 Producing hydrocarbons from well with underground reservoir |
| 06/26/2001 | US6250390 Dual electric submergible pumping systems for producing fluids from separate reservoirs |
| 06/26/2001 | US6250389 Method of oil/gas well stimulation |
| 06/26/2001 | US6250388 Gas impulse device and method of use thereof |
| 06/26/2001 | US6250386 Process for stimulation of oil wells |
| 06/26/2001 | US6250385 Method and apparatus for completing a well for producing hydrocarbons or the like |
| 06/26/2001 | US6250384 Installation for pumping a liquid/gas two-phase effluent |
| 06/26/2001 | US6250131 Apparatus and method for controlling and measuring steam quality |
| 06/21/2001 | WO2001044620A1 System for producing de-watered oil |
| 06/21/2001 | WO2001044619A1 Controlling fluid flow in conduits |
| 06/21/2001 | WO2001044618A2 Gas lift assembly |
| 06/21/2001 | US20010004025 Device for drilling and draining holes in soil or rock |
| 06/21/2001 | US20010004017 Well-bottom gas separator |
| 06/21/2001 | US20010004016 Perforating gun brake |
| 06/21/2001 | CA2328790A1 Shroud for use with electric submergible pumping system |
| 06/20/2001 | CN1299917A Polymer depositing well flow rate controller |
| 06/19/2001 | US6247542 Non-rotating sensor assembly for measurement-while-drilling applications |
| 06/19/2001 | US6247532 Apparatus for establishing branch wells from a parent well |
| 06/19/2001 | US6247313 Plant for exploiting geothermal energy |