| 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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| 12/30/2004 | US20040261993 Well completion; mixture of hydraulic cement, water anfd degradable polymer material; consolidation cements |
| 12/30/2004 | US20040261990 Wellbore system with annular seal member |
| 12/29/2004 | WO2004113672A1 Surface pulse system for injection wells |
| 12/29/2004 | WO2004113671A1 A device and a method for selective control of fluid flow between a well and surrounding rocks |
| 12/29/2004 | WO2004113670A2 Motors for electric submersible pumps |
| 12/29/2004 | WO2004113669A1 Liquid carbon dioxide cleaning of wellbores and near-wellbore areas |
| 12/29/2004 | WO2004113627A1 Method and system for storing liquid in a geological formation |
| 12/29/2004 | WO2004072434A3 Methods and apparatus for wellbore construction and completion |
| 12/29/2004 | WO2004070168A3 Post installation cured braided continuous composite tubular |
| 12/29/2004 | WO2003086675B1 Protective sleeve for threaded connections for expandable liner hanger |
| 12/29/2004 | EP1491718A2 A Stroke Indicator and a Tubular Patch |
| 12/29/2004 | EP1491714A2 Multilateral well drilling and completion method and appratus |
| 12/29/2004 | EP1490581A1 Use of dispersion polymers as friction reducers in aqueous fracturing fluids |
| 12/29/2004 | EP1490579A2 Apparatus and method to expand casing |
| 12/29/2004 | EP1379804A4 Threaded connection |
| 12/29/2004 | EP1210501B1 Expandable downhole tubing |
| 12/29/2004 | CN2667206Y Screw pump complete oil producing equipment set drived by motor underwell |
| 12/29/2004 | CN2667201Y Anti-pump-out device for screw pump oil producing well |
| 12/29/2004 | CN2667196Y Parallel oil-well pump |
| 12/29/2004 | CN2667157Y Multi stage separating injection valve |
| 12/29/2004 | CN2667156Y Eccentric water distributor and its detectable flow sealed measurement sealing section |
| 12/29/2004 | CN2667155Y Oil pipe transfer perforation electric igniting device |
| 12/29/2004 | CN2667154Y Stainless steel antisand screen pipe under pump |
| 12/29/2004 | CN2667153Y Floating sandproof device |
| 12/29/2004 | CN2667152Y Stainless steel corrugated sand filtering pipe |
| 12/29/2004 | CN2667151Y Oil pipe hollow rod antiwear aid |
| 12/29/2004 | CN1558087A Method and apparatus for treating raffinate fissuring body and application of divided pure water |
| 12/29/2004 | CN1558086A Group-well fracture pressure steeping control aqueous fusion exploitation method of glauberite bal |
| 12/29/2004 | CN1558085A Microorganism oil production method |
| 12/29/2004 | CN1182320C New type supporting agent for use when injection well is fractured |
| 12/29/2004 | CA2620650A1 Motors for electrical submersible pumps |
| 12/29/2004 | CA2620503A1 Motors for electrical submersible pumps |
| 12/28/2004 | US6834726 Method and apparatus to reduce downhole surge pressure using hydrostatic valve |
| 12/28/2004 | US6834725 Reinforced swelling elastomer seal element on expandable tubular |
| 12/28/2004 | US6834716 Water well including a pump |
| 12/28/2004 | CA2353164C Rf communication with downhole equipment |
| 12/28/2004 | CA2287123C Enhancing well production using sonic energy |
| 12/23/2004 | WO2004111389A1 System and method for transmitting electric power into a bore |
| 12/23/2004 | WO2004111387A1 Transferring slurry from a vessel |
| 12/23/2004 | WO2004111386A1 Method and system for recirculating fluid in a well system |
| 12/23/2004 | WO2004111385A1 Hydromechanical slotted perforator |
| 12/23/2004 | WO2004111384A1 A well screen |
| 12/23/2004 | WO2004097157A3 Method for treating bottomhole zone |
| 12/23/2004 | US20040258482 Subsea connection apparatus |
| 12/23/2004 | US20040258293 Automated optical inspection of wire-wrapped well screens |
| 12/23/2004 | US20040256161 Modular design for downhole ECD-management devices and related methods |
| 12/23/2004 | US20040256157 Method and apparatus for drilling a borehole with a borehole liner |
| 12/23/2004 | US20040256116 Simultaneous production of gas for injection into an oil field and production of methanol and/or other oxygenated hydrocarbons or higher hydrocarbons from natural gas; air separation unit for producing pure nitrogen for injection and pure oxygen for production of synthesis gas by autothermal reformation |
| 12/23/2004 | US20040256115 Expansion set packer with bias assist |
| 12/23/2004 | US20040256112 Expandable tubulars |
| 12/23/2004 | US20040256111 Apparatus for and method of radial expansion of a tubular member |
| 12/23/2004 | US20040256104 Removing any scale or deposits in gas wells, by injecting a liquid carbon dioxide at a pressure below the formation fracturing pressure, depressurization to vaporize carbon dioxide, and blow out any dissolved scale materials |
| 12/23/2004 | US20040256103 Fiber optics laser perforation tool |
| 12/23/2004 | US20040256100 Method and apparatus of providing an optical fiber along a power supply line |
| 12/23/2004 | US20040256099 Methods for enhancing treatment fluid placement in a subterranean formation |
| 12/23/2004 | US20040256098 Apparatus for and a method of anchoring an expandable conduit |
| 12/23/2004 | US20040256097 Surface pulse system for injection wells |
| 12/23/2004 | CA2570314A1 A well screen |
| 12/22/2004 | EP1489260A1 Downhole tool and method of fracturing a well formation |
| 12/22/2004 | EP1489235A1 Method and system for storing liquid in a geological formation |
| 12/22/2004 | EP1282732A4 Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems |
| 12/22/2004 | EP1276955B1 Central circulation completion system |
| 12/22/2004 | CN2665408Y Down-hole oil extraction double screw pump |
| 12/22/2004 | CN2665404Y Oil thickening pump with a below-mounted weight adding device |
| 12/22/2004 | CN2665403Y Multi-stage diving pump |
| 12/22/2004 | CN2665357Y Throwing-free separate zone water flooding apparatus |
| 12/22/2004 | CN2665356Y Built-in sand prevention pipe |
| 12/22/2004 | CN2665355Y Corrugated stainless steel plate net sand prevention pipe |
| 12/22/2004 | CN1556333A Petroleum lifting pump |
| 12/22/2004 | CN1556328A Sand proof blade guiding wheel |
| 12/22/2004 | CN1556327A Bicavity oil pump |
| 12/22/2004 | CN1556326A Hollow oil pump |
| 12/22/2004 | CN1556305A Under well hydraulic lifter |
| 12/22/2004 | CN1556304A Structum acidizing or press cracking and jet pump combined operation liquid discharge technology system |
| 12/22/2004 | CN1181256C Beam-balancing pumping unit without inertia force |
| 12/21/2004 | US6833091 Method for injecting of foamed concrete and a foamed concrete |
| 12/21/2004 | US6832874 Modular seabed processing system |
| 12/21/2004 | US6832654 Bottom hole assembly |
| 12/21/2004 | US6832650 Methods of reducing or preventing particulate flow-back in wells |
| 12/21/2004 | US6832649 Apparatus and methods for utilizing expandable sand screen in wellbores |
| 12/16/2004 | WO2004109058A1 Method for reducing diameter reduction near ends of expanded tubulars |
| 12/16/2004 | WO2004109057A2 Method of thermally insulating pipes |
| 12/16/2004 | WO2004109055A1 Expansion set packer |
| 12/16/2004 | WO2004053434B1 System for radially expanding tubular members |
| 12/16/2004 | WO2003106130B1 Collapsible expansion cone |
| 12/16/2004 | WO2003093623B1 Mono diameter wellbore casing |
| 12/16/2004 | US20040254734 Method for optimizing production of an oil reservoir in the presence of uncertainties |
| 12/16/2004 | US20040254079 Injecting blend of fluorboric acid and chelate compound; adjust permeability; dissolving clays |
| 12/16/2004 | US20040251196 Transferring slurry from a vessel |
| 12/16/2004 | US20040251035 Hydraulically assisted tubing expansion |
| 12/16/2004 | US20040251034 Mono-diameter wellbore casing |
| 12/16/2004 | US20040251033 Method for using expandable tubulars |
| 12/16/2004 | US20040251032 Apparatus and methods for utilizing a downhole deployment valve |
| 12/16/2004 | US20040251030 Single well development system |
| 12/16/2004 | US20040251028 Sealed connectors for automatic gun handling |
| 12/16/2004 | US20040251024 Single trip perforation/packing method |
| 12/16/2004 | US20040251023 Downhole surge pressure reduction and filtering apparatus |
| 12/16/2004 | US20040251020 Adjustable well screen assembly |
| 12/16/2004 | US20040251019 Bottom discharge seal section |
| 12/16/2004 | US20040251018 Abrasion resistant frac head |