| 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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| 08/30/2001 | US20010017208 One-trip squeeze pack system |
| 08/30/2001 | US20010017207 System and a method of extracting oil |
| 08/30/2001 | US20010017206 Enhancement of flow rates through porous media |
| 08/30/2001 | US20010017157 Variable orifice gas lift valve for high flow rates with detachable power source and method of using |
| 08/30/2001 | CA2605860A1 Integrated reservoir optimization |
| 08/30/2001 | CA2602280A1 Integrated reservoir optimization |
| 08/30/2001 | CA2400796A1 Integrated reservoir optimization |
| 08/29/2001 | EP1128021A2 Solids-free viscous fluids |
| 08/29/2001 | EP1127210A1 Connector for an expandable tubing string |
| 08/29/2001 | CN1070257C Well treatment method of periodic negative pressure combined with acidification |
| 08/28/2001 | US6281489 Monitoring of downhole parameters and tools utilizing fiber optics |
| 08/28/2001 | US6280000 Method for production of gas from a coal seam using intersecting well bores |
| 08/28/2001 | US6279660 Apparatus for optimizing production of multi-phase fluid |
| 08/28/2001 | US6279658 Method of forming and servicing wellbores from a main wellbore |
| 08/28/2001 | US6279653 Heavy oil viscosity reduction and production |
| 08/28/2001 | US6279651 Tool for managing fluid flow in a well |
| 08/23/2001 | WO2001061167A1 Environmentally friendly method for generating energy from natural gas |
| 08/23/2001 | WO2001061149A1 A device for and method of separating gas and liquid in a wellstream |
| 08/23/2001 | WO2001061148A2 Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids |
| 08/23/2001 | WO2001061147A1 Circulation tool for use in gravel packing of wellbores |
| 08/23/2001 | WO2001061146A1 Method and apparatus for stimulation of multiple formation intervals |
| 08/23/2001 | WO2001060545A1 Expanding a tubular member |
| 08/23/2001 | US20010015574 Method and system for accessing subterranean deposits from the surface |
| 08/23/2001 | US20010015277 Packer |
| 08/23/2001 | US20010015276 Wellbore flow control device |
| 08/23/2001 | US20010015275 Single trip perforating and fracturing/gravel packing |
| 08/23/2001 | CA2785871A1 Method and apparatus for stimulating heavy oil production |
| 08/22/2001 | EP1126131A1 Completing unconsolidated subterranean producing zones |
| 08/22/2001 | EP1125965A1 Expandable and settable deployable preform containing unsaturated resins, use for casing of wells or canalisation |
| 08/22/2001 | EP1125037A1 Process for sequentially applying sagd to adjacent sections of a petroleum reservoir |
| 08/22/2001 | EP0694157B1 Expendable ebw firing module for detonating perforating gun charges |
| 08/22/2001 | CN2444087Y Electric braker for oil pumping machine |
| 08/22/2001 | CN2444058Y Jacket device of constant flow for ground injecting water |
| 08/21/2001 | US6277286 Method and device for the separation of a fluid in a well |
| 08/21/2001 | US6276690 Ribbed sealing element and method of use |
| 08/21/2001 | US6276453 Method and apparatus for forcing an object through the sidewall of a borehole |
| 08/21/2001 | CA2179952C Adapter for oil well tubings |
| 08/17/2001 | CA2337561A1 Chemical stick storage and delivery system |
| 08/16/2001 | WO2001059258A1 A method and apparatus for the optimal predistortion of an electromagnetic signal in a downhole communication system |
| 08/16/2001 | WO2001059257A1 Method of reducing the specific gravity of a crude oil, a hydrocarbon liquid therefor and use of a hydrocarbon liquid |
| 08/16/2001 | WO2001059256A1 Invert well service fluid and method |
| 08/16/2001 | WO2001059252A1 Coupled electromagnetic and acoustic stimulation of crude oil reservoirs |
| 08/16/2001 | WO2001058832A2 Shaped recesses in explosive carrier housings that provide for improved explosive performance background |
| 08/16/2001 | WO2001058749A1 Method and device for offshore loading of hydrocarbons |
| 08/16/2001 | US20010013414 Floating spar for supporting production risers |
| 08/16/2001 | US20010013412 Production well telemetry system and method |
| 08/16/2001 | EP0981680B1 A connection device |
| 08/16/2001 | EP0825896B1 Separator systems for well production fluids |
| 08/16/2001 | DE10031663A1 Filterrohr und dessen Verwendung Filter tube and its use |
| 08/16/2001 | DE10008035A1 Rammfähiger Brunnenfilter Rammfähiger well filter |
| 08/16/2001 | CA2399909A1 Coupled electromagnetic and acoustic stimulation of crude oil reservoirs |
| 08/15/2001 | CN2443169Y Tail boom sliding balancer for beam pumping unit |
| 08/15/2001 | CN2443168Y Kinetic energy balancer for long stroke pumping unit |
| 08/15/2001 | CN2443145Y Full-automatic depth-correcting numerically controlled perforator |
| 08/15/2001 | CN1308705A Method and tool for fracturing an underground formation |
| 08/15/2001 | CN1069732C Mirabilite exploiting process |
| 08/14/2001 | US6273634 Connector for an expandable tubing string |
| 08/14/2001 | US6273202 Swab test for determining relative formation productivity |
| 08/14/2001 | CA2155512C Application of n, n-dialkylamides to reduce precipitation of asphalt from crude oil |
| 08/09/2001 | WO2001057359A2 Apparatus and method for moving fluid |
| 08/09/2001 | US20010011590 Process and apparatus for coupled electromagnetic and acoustic stimulation of crude oil reservoirs using pulsed power electrohydraulic and electromagnetic discharge |
| 08/08/2001 | EP1023382A4 Composite proppant, composite filtration media and methods for making and using same |
| 08/08/2001 | EP0685020B1 Method and system for remediation of groundwater contamination |
| 08/08/2001 | CN2441998Y Counter weight device of oil pump unit |
| 08/08/2001 | CN2441997Y Regulator of beam type pump stroke |
| 08/08/2001 | CN2441973Y Water injection packet for oil field |
| 08/08/2001 | CN2441972Y Steel wire net sleeve metal fiber screen tube |
| 08/08/2001 | CA2334496A1 Flexible expandable preform having a hardening capacity and containing non-saturated resins, for well tubing or a water-supply system |
| 08/07/2001 | US6270643 Method of effecting fluid flow in porous materials |
| 08/07/2001 | US6269884 Gas displaced chamber lift system with closed loop/multi-stage vents |
| 08/07/2001 | US6269882 Method for ignition of flameless combustor |
| 08/07/2001 | US6269880 System for removing solids from a well bore |
| 08/07/2001 | US6269877 Magnetic assembly for use with a downhole casing perforator |
| 08/07/2001 | CA2185837C Solvent-assisted method for mobilizing viscous heavy oil |
| 08/07/2001 | CA2155855C Method and system for remediation of groundwater contamination |
| 08/07/2001 | CA2155854C Method and system for remediation of groundwater contamination |
| 08/02/2001 | WO2001055555A1 Choke inductor for wireless communication and control in a well |
| 08/02/2001 | WO2001055554A1 Downhole wireless two-way telemetry system |
| 08/02/2001 | WO2001055553A1 System and method for fluid flow optimization in a gas-lift oil well |
| 08/02/2001 | WO2001055552A1 An oil pumping unit with a counterweight whose centroid can be adjusted |
| 08/02/2001 | WO1999051704A8 Injection molded degradable casing perforation ball sealers |
| 08/02/2001 | US20010010782 Method and apparatus for connecting underwater conduits |
| 08/02/2001 | US20010010432 Method and system for accessing subterranean deposits from the surface |
| 08/01/2001 | EP1119686A1 Method and system for separating and injecting gas and water in a wellbore |
| 08/01/2001 | EP0828921B1 Activating means for drilling apparatus |
| 08/01/2001 | CN1306149A Technology for removing stratum blocking of oil well or water injection well by means of ClO2/hydrochloric acid composition |
| 08/01/2001 | CN1305866A Process for rapidly preparing inertial gas in-situ |
| 07/31/2001 | US6268911 Monitoring of downhole parameters and tools utilizing fiber optics |
| 07/31/2001 | US6268672 System and method for protecting a submergible motor from corrosive agents in a subterranean environment |
| 07/31/2001 | US6267182 Method and equipment for offshore oil production with primary gas separation and flow using the injection of high pressure gas |
| 07/31/2001 | US6267181 Method and apparatus for cementing a well |
| 07/31/2001 | CA2333250A1 Combined notching and jetting methods and related apparatus |
| 07/31/2001 | CA2259776C Magnetic assembly for use with a downhole casing perforator |
| 07/31/2001 | CA2200665C Reservoir fluids production apparatus and method |
| 07/26/2001 | WO2001053655A1 Improved method for the drilling of oil wells |
| 07/26/2001 | WO2001053649A2 Slugging control |
| 07/26/2001 | US20010009189 Method and apparatus for running two tubing strings into a well |
| 07/26/2001 | CA2396282A1 Improved method for the drilling of oil wells |
| 07/25/2001 | CN2440126Y Speed-increased oil submersible electric pump |
| 07/25/2001 | CN1305047A Ultrasonic water draining method for recovering gas |