| 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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| 06/18/2002 | US6405800 Method and apparatus for controlling fluid flow in a well |
| 06/18/2002 | US6405797 Enhancement of flow rates through porous media |
| 06/18/2002 | US6405796 Method for improving oil recovery using an ultrasound technique |
| 06/18/2002 | CA2246461C Toe-to-heel oil recovery process |
| 06/13/2002 | WO2002046578A1 Method for wave processing mainly productive strata |
| 06/13/2002 | WO2002046577A1 Method, computer program prodcut and use of a computer program for stabilizing a multiphase flow |
| 06/13/2002 | WO2002046576A1 A sleeve valve for controlling fluid flow between a hydrocarbon reservoir and tubing in a well and method for the assembly of a sleeve valve |
| 06/13/2002 | WO2002046575A1 Device for an opening in an outer sleeve of a sleeve valve and a method for the assembly of a sleeve valve |
| 06/13/2002 | WO2002046574A1 Completing wells in unconsolidated formations |
| 06/13/2002 | WO2002046572A1 Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| 06/13/2002 | WO2002029195A3 Production optimization for multilayer commingled reservoirs |
| 06/13/2002 | WO2002028560A3 Method and apparatus for expansion sealing concentric tubular structures |
| 06/13/2002 | WO2001007860A3 Components and methods for use with explosives |
| 06/13/2002 | WO2001004459A9 Downhole anchoring tools conveyed by non-rigid carriers |
| 06/13/2002 | US20020070369 Planar-divergent valve insert |
| 06/13/2002 | US20020070032 Hydraulic running tool with torque dampener |
| 06/13/2002 | US20020070031 Well completion method and apparatus |
| 06/13/2002 | US20020070023 Multi-zone completion strings and methods for multi-zone completions |
| 06/13/2002 | US20020070020 Injecting consolidating agent through well bore and into zone within formation to form consolidated mass; fracturing consolidated mass with fracturing fluid to establish fluid communication between area of formation outside of zone |
| 06/13/2002 | US20020070019 Methods and apparatus for completing wells in unconsolidated subterranean zones |
| 06/13/2002 | US20020070017 Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| 06/13/2002 | US20020070013 Method and apparatus for forcing an object through the sidewall of a borehole |
| 06/13/2002 | CA2398393A1 Method for wave processing mainly productive strata |
| 06/12/2002 | EP1212514A2 System for enhancing fluid flow in a well |
| 06/12/2002 | EP1212513A1 Expandable tubing |
| 06/12/2002 | EP1102916A4 Apparatus and method for perforating and stimulating a subterranean formation |
| 06/12/2002 | CN2494873Y Micro and small size air anchor |
| 06/12/2002 | CN1353792A Method of creating well bore |
| 06/12/2002 | CN1353236A Hydraulic oil soot exhauster with frequency-varying displacement-type speed control |
| 06/11/2002 | US6405037 Method and architecture for an interactive two-way data communication network |
| 06/11/2002 | US6402820 Fluidic level control systems |
| 06/11/2002 | US6401818 Wellbore perforation method and apparatus |
| 06/11/2002 | US6401547 Device and method for measuring fluid and solute fluxes in flow systems |
| 06/11/2002 | CA2251639C Apparatus and method for perforating and stimulating a subterranean formation |
| 06/11/2002 | CA2036165C Method and well system for producing hydrocarbons |
| 06/06/2002 | WO2002044522A1 Coating for preventing erosion of wellbore components |
| 06/06/2002 | WO2001092675A3 Method and system for performing operations and for improving production in wells |
| 06/06/2002 | WO2001009477A9 Wire carrier perforating gun |
| 06/06/2002 | US20020066596 Subsea mud pump and control system |
| 06/06/2002 | US20020066578 Gravel pack expanding valve |
| 06/06/2002 | US20020066576 Isolation of subterranean zones |
| 06/06/2002 | US20020066572 Pump systems and methods |
| 06/06/2002 | US20020066568 Integrated pumping system for use in pumping a variety of fluids |
| 06/06/2002 | US20020066565 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources |
| 06/06/2002 | US20020066561 Controlling Production |
| 06/06/2002 | US20020066560 Methods and apparatus for completing wells in unconsolidated subterranean zones |
| 06/06/2002 | US20020066556 Well having a self-contained inter vention system |
| 06/06/2002 | US20020066309 Monitoring of downhole parameters and tools utilizing fiber optics |
| 06/05/2002 | EP1210503A1 Apparatus for and a method of anchoring an expandable conduit |
| 06/05/2002 | EP1210502A1 Apparatus for and method of anchoring a first conduit to a second conduit |
| 06/05/2002 | EP1210501A1 Expandable downhole tubing |
| 06/05/2002 | CN2494434Y Tubing pump beneficiatino self-vibration plunger valve |
| 06/05/2002 | CN2494428Y Pivot-changing beam pumping unit |
| 06/05/2002 | CN1352350A Composite deblocking process for oil layer |
| 06/05/2002 | CN1086016C Oil pumping unit |
| 06/04/2002 | US6397950 Apparatus and method for removing a frangible rupture disc or other frangible device from a wellbore casing |
| 06/04/2002 | US6397948 Shearing arrangement for subsea umbilicals |
| 06/04/2002 | US6397947 Optimizing charge phasing of a perforating gun |
| 06/04/2002 | US6397752 Method and apparatus for coupling explosive devices |
| 05/30/2002 | WO2002042604A1 Filter apparatus for use in water wells |
| 05/30/2002 | WO2002042603A1 Process for recovering methane and/or sequestering fluids in coal beds |
| 05/30/2002 | WO2002041965A2 Combined degassing and flotation tank |
| 05/30/2002 | WO2002023006A3 Concentric tubing completion system |
| 05/30/2002 | WO2002016724A3 Expandable coupling |
| 05/30/2002 | WO2001062603A3 Integrated reservoir optimization |
| 05/30/2002 | WO2001058832A3 Shaped recesses in explosive carrier housings that provide for improved explosive performance background |
| 05/30/2002 | US20020062991 Communicating with a tool |
| 05/30/2002 | US20020062963 Flow-operated valve |
| 05/30/2002 | US20020062961 In situ thermal processing of a hydrocarbon containing formation and ammonia production |
| 05/30/2002 | US20020062960 Rigless one-trip perforation and gravel pack system and method |
| 05/30/2002 | US20020062959 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio |
| 05/30/2002 | US20020062956 Self-lubricating swage |
| 05/30/2002 | CA2423766A1 Filter apparatus for use in water wells |
| 05/29/2002 | EP1208897A1 Combined degassing and flotation tank |
| 05/29/2002 | CN2493745Y Screw pump oil production device |
| 05/29/2002 | CN2493744Y Offset water make-up device |
| 05/29/2002 | CN2493743Y Oil filling machine for oil field pumping machine |
| 05/29/2002 | CN2493742Y Offset balance elastic suspension device for walking beam oil pumping machine |
| 05/29/2002 | CN1350901A Technology for machining kerfed sieving pipe |
| 05/29/2002 | CN1085772C Parameters design method for mechanically oil producing technology with rod pump |
| 05/28/2002 | US6394461 Pressure compensated stuffing box for reciprocating pumping units |
| 05/28/2002 | US6394186 Apparatus for remote adjustment of drill string centering to prevent damage to wellhead |
| 05/28/2002 | US6394185 Product and process for coating wellbore screens |
| 05/28/2002 | US6394184 Method and apparatus for stimulation of multiple formation intervals |
| 05/28/2002 | US6394183 System and method for removing solid particulates from a pumped wellbore fluid |
| 05/28/2002 | US6394182 Oil-gas separating method and bottom-hole spiral separator with gas escape channel |
| 05/28/2002 | US6394181 Self-regulating lift fluid injection tool and method for use of same |
| 05/28/2002 | CA2326967A1 Circulating apparatus for an oil production tubing string having an inline pump |
| 05/23/2002 | WO2002040829A1 Transducer receiving voltage inputs rich in harmonics, such as square waves |
| 05/23/2002 | WO2002040825A1 Expander |
| 05/23/2002 | WO2001092687A3 Expandable elements |
| 05/23/2002 | WO2001081239A3 In situ recovery from a hydrocarbon containing formation |
| 05/23/2002 | US20020062052 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees C. |
| 05/23/2002 | US20020062051 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees C. |
| 05/23/2002 | US20020060079 Method and apparatus for downhole sealing |
| 05/23/2002 | US20020060078 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/23/2002 | US20020060072 Process for Continuously perforating in oil wells and apparatus used for the same |
| 05/23/2002 | US20020060071 Wellbore and formation heating system and method |
| 05/23/2002 | US20020060069 Forming a wellbore casing while simultaneously drilling a wellbore |
| 05/23/2002 | US20020060068 Forming a wellbore casing while simultaneously drilling a wellbore |