| 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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| 06/19/2001 | CA2289770C Oil recovery method using an emulsion |
| 06/16/2001 | CA2292332A1 Perforating gun brake |
| 06/14/2001 | WO2001042620A1 Sand control method and apparatus |
| 06/14/2001 | US20010003315 Compositions for fracturing subterranean formations |
| 06/13/2001 | EP1106778A1 Seal for expandable tubular connections |
| 06/13/2001 | EP1105621A2 System and method for controlling fluid flow in one or more oil and/or gas wells |
| 06/13/2001 | EP1105618A1 Device for drilling or draining holes in soil or rock |
| 06/13/2001 | EP0862681B1 Downhole apparatus and method for expanding a tubing |
| 06/13/2001 | CN2434448Y Rotary plunger oil-well pump |
| 06/13/2001 | CN2434431Y Small diameter water distributer |
| 06/12/2001 | US6244642 Retrievable bridge plug and retrieving tool |
| 06/12/2001 | US6244347 Subsea well drilling and/or completion apparatus |
| 06/12/2001 | US6244341 Huff and puff process utilizing nitrogen gas |
| 06/12/2001 | US6244338 System for improving coalbed gas production |
| 06/12/2001 | US6244337 System for sealing the intersection between a primary and a branch borehole |
| 06/12/2001 | US6244157 Wire carrier perforating gun |
| 06/12/2001 | CA2155131C Downhole gas-liquid separator for wells |
| 06/07/2001 | WO2001040937A1 Method and program for simulating a physical system using object-oriented programming |
| 06/07/2001 | WO2001040624A2 Production valve |
| 06/07/2001 | WO2001040623A1 Method and apparatus for seismic stimulation of fluid-bearing formations |
| 06/07/2001 | WO2001040622A1 Downhole pulser |
| 06/07/2001 | WO2001040617A1 Creating multiple fractures in an earth formation |
| 06/07/2001 | WO2001040614A2 Ceramic components for high pressure oil wells |
| 06/07/2001 | WO2001040612A2 Apparatus for hanging tubulars in wells |
| 06/07/2001 | WO2001033038A8 Method for transforming a gas-liquid stream in well and variants of device therefor |
| 06/07/2001 | WO1999064719A3 Process of preparing a gas composition and use thereof |
| 06/07/2001 | US20010002626 Method of creating a wellbore in an underground formation |
| 06/07/2001 | US20010002621 Packer |
| 06/07/2001 | CA2396420A1 Ceramic components for high pressure oil wells |
| 06/06/2001 | CN2433390Y High-temp. and high-pressure resistant metal flexible pipe for steam injection to thickened oil |
| 06/06/2001 | CN1298469A Foldable tube |
| 06/06/2001 | CN1298468A Deformable liner tube |
| 06/06/2001 | CN1298058A Underground gasifying furnace used to generate gas in pit |
| 06/06/2001 | CA2291849A1 Separation and recovery of liquid-phase petroleum hydrocarbons from water |
| 06/05/2001 | US6242829 Submersible pumping system utilizing a motor protector having a metal bellows |
| 06/05/2001 | US6241019 Enhancement of flow rates through porous media |
| 06/05/2001 | US6241018 Hydraulic running tool |
| 06/05/2001 | US6241016 Drive head assembly |
| 06/05/2001 | US6241014 Plunger lift controller and method |
| 06/05/2001 | US6241013 One-trip squeeze pack system and method of use |
| 06/05/2001 | CA2339685A1 Wellsite inert gas generator |
| 06/05/2001 | CA2339684A1 Downhole jet pump |
| 06/05/2001 | CA2173700C Casing conveyed flowports for borehole use |
| 05/31/2001 | WO2001038694A1 Method and system for preventing hydrate formation by reinjecting hydrocarbon gas including methanol |
| 05/31/2001 | WO2001038693A1 Pipe expansion device |
| 05/31/2001 | WO2001038687A2 Pipe connecting method |
| 05/31/2001 | WO2001004520A8 Expandable joint connector |
| 05/31/2001 | WO2000045024A3 Securing a well casing to a wellbore |
| 05/31/2001 | US20010001984 Single trip perforating and fracturing/gravel packing |
| 05/30/2001 | EP1103698A1 Downhole gas/liquid separation system |
| 05/30/2001 | EP1102916A1 Apparatus and method for perforating and stimulating a subterranean formation |
| 05/30/2001 | EP1102915A2 Connector for expandable well screen |
| 05/30/2001 | EP0859903B1 Downhole setting tool for an expandable tubing |
| 05/30/2001 | CN1297100A Oil recovery method using black paper-making liquor as oil displacing alkali |
| 05/30/2001 | CN1297099A Technique for combining secondary with tertiary oil recoveries |
| 05/30/2001 | CN1066514C Method and apparatus for intermittent production of oil using gas-lift plug |
| 05/29/2001 | US6237692 Gas displaced chamber lift system having a double chamber |
| 05/29/2001 | US6237691 Method and apparatus for increasing fluid recovery from a subterranean formation |
| 05/29/2001 | US6237688 Pre-drilled casing apparatus and associated methods for completing a subterranean well |
| 05/29/2001 | US6237687 Method and apparatus for placing a gravel pack in an oil and gas well |
| 05/29/2001 | US6237683 Wellbore flow control device |
| 05/29/2001 | CA2208725C Above production disposal tool |
| 05/25/2001 | WO2001036788A1 Method for expanding a tubular element in a wellbore |
| 05/25/2001 | WO2001036786A1 Wellbore system having non-return valve |
| 05/25/2001 | WO2001036785A1 Two-part connector for fluid carrying conduits |
| 05/24/2001 | US20010001418 Apparatus and method for perforating and stimulating a subterranean formation |
| 05/23/2001 | EP1101873A2 Filter tube for placing in a borehole and method for manufacturing the filter tube |
| 05/23/2001 | CN1296115A Oil-producing method using ether carboxylate as oil displacement system |
| 05/22/2001 | US6235701 Stabilized carbon dioxide fluid composition and use thereof |
| 05/22/2001 | US6234770 Reservoir fluids production apparatus and method |
| 05/22/2001 | US6234761 Apparatus for an air lift and transfer pump |
| 05/22/2001 | US6234717 Method and apparatus for connecting underwater conduits |
| 05/22/2001 | US6234248 Well production apparatus |
| 05/22/2001 | US6234247 Bore hole safety valves |
| 05/18/2001 | CA2326288A1 Surfactant for enhanced oil recovery and for reducing the viscosity of heavy oil in pipelines and pumps |
| 05/18/2001 | CA2325976A1 Optimum oil-well casing heating |
| 05/17/2001 | WO2001034940A2 Method and system for suppressing and controlling slug flow in a multi-phase fluid stream |
| 05/17/2001 | WO2001034937A1 Method and device for exciting transversal oscillations of a pipe string in a borehole |
| 05/17/2001 | WO2001007860A9 Components and methods for use with explosives |
| 05/16/2001 | EP1082515A4 Offshore drilling system |
| 05/16/2001 | EP1071862A4 Rotating subsea diverter |
| 05/16/2001 | CN2430542Y Precision sand preventing pipe for oil and gas well |
| 05/16/2001 | CN2430208Y Composite sand anchor |
| 05/16/2001 | CN1065944C Elongated logging and early trial production system for marine petroleum exploration |
| 05/16/2001 | CN1065943C Method and facilities for drilling well, logging and early trial production at same time |
| 05/15/2001 | US6231312 Variable orifice gas lift valve for high flow rates with detachable power source and method of using |
| 05/15/2001 | US6230824 Rotating subsea diverter |
| 05/15/2001 | US6230814 Process for enhancing hydrocarbon mobility using a steam additive |
| 05/15/2001 | US6230810 Method and apparatus for producing wellbore fluids from a plurality of wells |
| 05/15/2001 | US6230809 Method and apparatus for producing and shipping hydrocarbons offshore |
| 05/15/2001 | US6230805 Methods of hydraulic fracturing |
| 05/15/2001 | US6230803 Apparatus and method for treating and gravel-packing closely spaced zones |
| 05/15/2001 | US6230802 Method and apparatus for gravel packing a well |
| 05/15/2001 | US6230801 Apparatus and method for open hold gravel packing |
| 05/10/2001 | WO2001033173A1 Device and method for measuring fluid and solute fluxes in flow systems |
| 05/10/2001 | WO2001033042A1 Foam monitoring and control system |
| 05/10/2001 | WO2001033040A1 Method of microbial enhanced oil recovery |
| 05/10/2001 | WO2001033038A1 Method for transforming a gas-liquid stream in well and variants of device therefor |
| 05/10/2001 | WO2001033037A1 Wellbore casing repair |
| 05/10/2001 | WO2001006090A3 Tool and method for managing fluid flow in a well |