| 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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| 08/19/2004 | US20040159432 Creating an underbalance condition in a wellbore |
| 08/18/2004 | EP1447523A1 Completing wells in unconsolidated zones |
| 08/18/2004 | EP1446553A1 A method and system for handling producing fluid |
| 08/18/2004 | EP1446551A1 Downhole pump assembly and method of recovering well fluids |
| 08/18/2004 | EP1446550A1 Early hydrocarbon production system |
| 08/18/2004 | EP1324855B1 A method for interconnecting adjacent expandable pipes |
| 08/18/2004 | EP1105621B1 System and method for controlling fluid flow in one or more oil and/or gas wells |
| 08/18/2004 | CN2634170Y Balance locking device for oil pumping machine |
| 08/18/2004 | CN2634146Y Rod type integrated layered oil pump |
| 08/18/2004 | CN2634145Y Three stage layered oil pump |
| 08/18/2004 | CN2634144Y Novel combined plunger anti-clip oil pump |
| 08/18/2004 | CN2634143Y Rod type sand-proof oil pump |
| 08/18/2004 | CN2634113Y Heat insulation pipe broken and slipping anti-stacking device |
| 08/18/2004 | CN2634112Y Anti-sand anti-clip aaccentric injection mandrel |
| 08/18/2004 | CN2634111Y Primary well completion pipe string of natural gas well oil casing separate production |
| 08/18/2004 | CN2634110Y 定向射孔装置 Oriented perforating device |
| 08/18/2004 | CN2634109Y Inner blind hole type perforator |
| 08/18/2004 | CN2634108Y Plasma double layer composite slotted screen pipe |
| 08/18/2004 | CN2634107Y Filer core type oil field under well anti-sand device |
| 08/18/2004 | CN2634106Y 抽油机卸载器 Pumping unloader |
| 08/18/2004 | CN1522335A Centraliser for an expandable tubular element in a wellbore |
| 08/18/2004 | CN1521399A Low friction resistance plunger pump |
| 08/18/2004 | CN1162608C Intelligent driving device for oil field pumping unit |
| 08/18/2004 | CN1162607C Control method for preventing pump collision and over-stroke of pumping unit |
| 08/17/2004 | US6778918 Methods for monitoring fluid front movements in hydrocarbon reservoirs using permanent sensors |
| 08/17/2004 | US6776910 Purification of aquifers that does not require the withdrawal and above-ground treatment and discharge of fluids. |
| 08/17/2004 | US6776241 Screen jacket assembly connection and methods of using same |
| 08/17/2004 | US6776240 Downhole valve |
| 08/17/2004 | US6776239 Tubing conveyed fracturing tool and method |
| 08/17/2004 | US6776238 Single trip method for selectively fracture packing multiple formations traversed by a wellbore |
| 08/17/2004 | US6776236 Methods of completing wells in unconsolidated formations |
| 08/17/2004 | US6776235 Hydraulic fracturing method |
| 08/17/2004 | US6776229 Check enhancer |
| 08/17/2004 | CA2239417C Method for isolating hydrocarbon-containing formations intersected by a well drilled for the purpose of producing hydrocarbons therethrough |
| 08/17/2004 | CA2206726C Automatic downhole pump assembly and method for use of the same |
| 08/12/2004 | WO2004068169A1 Downhole process control method utilizing seismic communication |
| 08/12/2004 | WO2004067961A2 Lubrication system for radially expanding tubular members |
| 08/12/2004 | WO2004067911A2 Propped fracture with high effective surface area |
| 08/12/2004 | WO2004067909A1 Methods and compositions for preventing fracture proppant flowback |
| 08/12/2004 | WO2004067906A1 Alternative method to cementing casing and liners |
| 08/12/2004 | WO2004067594A2 Polyether polyesters having anionic functionality |
| 08/12/2004 | WO2004053330A3 Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| 08/12/2004 | WO2004011763A3 Mechanical bladder pump |
| 08/12/2004 | WO2004005663A3 Tapered ramp positive lock latch mechanism |
| 08/12/2004 | WO2004005662A3 Method for upward growth of a hydraulic fracture along a well bore sandpacked annulus |
| 08/12/2004 | WO2003029611A8 Method and system for producing an oil and gas mixture through a well |
| 08/12/2004 | US20040154810 Method and system for increasing tubing resistance to pressure |
| 08/12/2004 | US20040154808 Tubing expansion |
| 08/12/2004 | US20040154806 Flow control apparatus for use in a wellbore |
| 08/12/2004 | US20040154802 Slant entry well system and method |
| 08/12/2004 | US20040154801 Computer system to help in selecting well treatment fluid, including sets of fluid families with relevant fluid characteristics and digital ratings, set of job parameters, set of connecting rules matching fluid families and parameters |
| 08/12/2004 | US20040154797 Shoe for expandable liner system |
| 08/12/2004 | US20040154796 Pumping aqueous solution of gravel overcoated with hardenable resin into well bore |
| 08/12/2004 | US20040154795 Apparatus and method for completing a well |
| 08/12/2004 | US20040154794 Borehole production boosting system |
| 08/12/2004 | US20040154793 Method for developing a hydrocarbon reservoir (variants) and complex for carrying out said method (variants) |
| 08/12/2004 | US20040154792 Desorption of hydrocarbons for recovery from water bearing coal using electromagnetic energy |
| 08/12/2004 | US20040154791 Shock absorber for oil well pumping unit |
| 08/12/2004 | CA2514553A1 Lubrication system for radially expanding tubular members |
| 08/12/2004 | CA2512567A1 Downhole process control method utilizing seismic communication |
| 08/12/2004 | CA2453945A1 Methods of completing wells in unconsolidated subterranean zones |
| 08/11/2004 | EP1445420A2 Oil separation and pumping systems |
| 08/11/2004 | EP1444415A1 Single well development system |
| 08/11/2004 | EP1264075A4 Method and apparatus for stimulation of multiple formation intervals |
| 08/11/2004 | CN2632396Y Large transmission rate and low stroke transmission of oil sucker |
| 08/11/2004 | CN2632342Y Separated extracting oil-well pumps |
| 08/11/2004 | CN2632341Y Ram rotary hollow sandproof oil-well pumps |
| 08/11/2004 | CN2632318Y Vehicle for preparing elementary fracturing fluid for oil mine |
| 08/11/2004 | CN2632317Y Low-density fluid generater |
| 08/11/2004 | CN2632316Y Automatic oil well long-range moniter |
| 08/11/2004 | CN2632315Y Oil moniter of oil well |
| 08/11/2004 | CN2632314Y Ladder kerf sieve tube |
| 08/11/2004 | CN2632313Y Downhole spiral lifter for screw pump oil recovery |
| 08/11/2004 | CN2632312Y Split safety anti-block bailing piston |
| 08/11/2004 | CN2632305Y Downhole separated filling and combined recovering packer for thickened oil recovery by heating |
| 08/11/2004 | CN1161533C Double well interactive beam-rope pulley autobalanced oil pumping unit |
| 08/10/2004 | US6775578 Optimization of oil well production with deference to reservoir and financial uncertainty |
| 08/10/2004 | US6772847 Hydrochloric acid, formic acid, acetic acid, or combinations thereof |
| 08/10/2004 | US6772841 Expandable float shoe and associated methods |
| 08/10/2004 | US6772840 Methods and apparatus for a subsea tie back |
| 08/10/2004 | US6772839 Method and apparatus for mechanically perforating a well casing or other tubular structure for testing, stimulation or other remedial operations |
| 08/10/2004 | US6772838 Lightweight particulate materials and uses therefor |
| 08/10/2004 | US6772837 Screen assembly having diverter members and method for progressively treating an interval of a welibore |
| 08/10/2004 | US6772836 Expandable tubing and method |
| 08/10/2004 | CA2299175C Directional coupling sensor for ensuring complete perforation of a wellbore casing |
| 08/10/2004 | CA2198812C Proppants with fiber reinforced resin coatings |
| 08/10/2004 | CA2133989C Compressing combustible gas flowing throughout a conduit |
| 08/05/2004 | WO2004066467A2 Solid oxide fuel cell with anode offgas afterburner charged with oxygen |
| 08/05/2004 | WO2004065917A2 Multi-lateral well with downhole gravity separation |
| 08/05/2004 | WO2004065760A1 Sand control screen assembly having an internal isolation member and treatment method using the same |
| 08/05/2004 | WO2004065759A1 Sand control screen assembly having an internal seal element and treatment method using the same |
| 08/05/2004 | WO2004053935A3 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 08/05/2004 | WO2004052790A3 Apparatus for treatment of wastewater employing membrane bioreactors |
| 08/05/2004 | WO2004046494A3 Method using particulate chelates to stimulate production of petroleum in carbonate formations |
| 08/05/2004 | WO2004027205A3 Mono diameter wellbore casing |
| 08/05/2004 | WO2004018823A3 Interposed joint sealing layer method of forming a wellbore casing |
| 08/05/2004 | WO2003086675A3 Protective sleeve for threaded connections for expandable liner hanger |
| 08/05/2004 | WO2003067020A3 Flowline jumper for subsea well |
| 08/05/2004 | WO2003054112A3 Oil and gas production with downhole separation and reinjection of gas |
| 08/05/2004 | WO2003042489A3 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |