| 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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| 04/26/2006 | EP1649136A1 System for sealing a space in a wellbore |
| 04/26/2006 | EP1501645A4 Protective sleeve for threaded connections for expandable liner hanger |
| 04/26/2006 | EP1448871B1 Multiphase fluid conveyance system |
| 04/26/2006 | EP1263653B1 Integrated reservoir optimization |
| 04/26/2006 | EP1073823B1 Method and device for linking surface to the seabed for a submarine pipeline installed at great depth |
| 04/26/2006 | CN2775400Y Biconnected speed reducer for tower type long stroke oil pumping machine |
| 04/26/2006 | CN2775342Y Separate production and separate output oil pump |
| 04/26/2006 | CN2775299Y Synchronous flow checking seal detector |
| 04/26/2006 | CN2775296Y Oil production pipe string device mounted with electric swirl heating pipe |
| 04/26/2006 | CN2775295Y Integrated metal screen cloth screen pipe |
| 04/26/2006 | CN2775294Y Commutator for tower long stroke oil pumping machine |
| 04/26/2006 | CN2775293Y Movable oil pumping machine electromechanical jackscrew |
| 04/26/2006 | CN1764768A Improved pump drive head with integrated stuffing box and clamp |
| 04/26/2006 | CN1763350A Boring device for borehole wall |
| 04/26/2006 | CN1253648C Thickened oil steam production synergist and its preparing method |
| 04/26/2006 | CN1253646C Method for sampling an earth formation through a cased borehole |
| 04/26/2006 | CN1253497C Preparation process of slow cross-linking agent for polyacrylamide gel |
| 04/25/2006 | US7033975 Recovering hydrocarbon from a permeable formation by injecting a fluid, foaming only under pressure; controlling the fluid flow, removing debris from a well |
| 04/25/2006 | US7032679 Tie back and method for use with expandable tubulars |
| 04/25/2006 | US7032675 Thermally-controlled valves and methods of using the same in a wellbore |
| 04/25/2006 | US7032674 Process for increasing flow capacity of gas wells |
| 04/25/2006 | US7032673 Orientation system for a subsea well |
| 04/25/2006 | US7032671 Method for increasing fracture penetration into target formation |
| 04/25/2006 | US7032670 Dehydration water from oil well; applying magnetism to adjust viscosity; sealing porous strate; drilling |
| 04/25/2006 | US7032669 Compositions and methods for preventing coagulation of water-in-oil emulsion polymers in aqueous saline well treating fluids |
| 04/25/2006 | US7032667 Methods for enhancing the consolidation strength of resin coated particulates |
| 04/25/2006 | US7032666 Gravel pack crossover tool with check valve in the evacuation port |
| 04/25/2006 | US7032665 System and method for gravel packaging a well |
| 04/25/2006 | US7032664 Nanocomposite particulates and methods of using nanocomposite particulates |
| 04/25/2006 | US7032663 Permeable cement and sand control methods utilizing permeable cement in subterranean well bores |
| 04/25/2006 | US7032662 injecting tracer in oil well; analyzing recovered fluid to determine concentration of tracer ; quantitative analysis |
| 04/25/2006 | US7032660 In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation |
| 04/25/2006 | US7032658 High power umbilicals for electric flowline immersion heating of produced hydrocarbons |
| 04/25/2006 | CA2373472C Method for heating subterranean formation particularly for heating reservoir fluids in near well bore zone |
| 04/25/2006 | CA2206749C Downhole fluid separation system |
| 04/25/2006 | CA2166907C Whipstock assembly for a sleeved casing |
| 04/21/2006 | CA2690921A1 Harvesting vibration for downhole power generation |
| 04/21/2006 | CA2523642A1 Harvesting vibration for downhole power generation |
| 04/20/2006 | WO2006042338A2 Apparatus and method for increasing well production |
| 04/20/2006 | WO2006042131A2 Perforation alignement tool for jet drilling, perforating and cleaning |
| 04/20/2006 | WO2006041898A2 Shale hydration inhibition agent and method of use |
| 04/20/2006 | WO2006041842A2 Expansion pig |
| 04/20/2006 | WO2006041825A2 One trip liner conveyed gravel packing and cementing system |
| 04/20/2006 | WO2006041822A2 Shale hydration inhibition agent and method of use |
| 04/20/2006 | WO2006041536A2 Angled perforating device for well completions |
| 04/20/2006 | WO2006040197A1 Apparatus and method for connection and disconnection of a marine riser |
| 04/20/2006 | US20060084581 Solids-stabilized oil-in-water emulsion and a method for preparing same |
| 04/20/2006 | US20060084580 encapsulation; for servicing well bores |
| 04/20/2006 | US20060081412 System and method for combined microseismic and tiltmeter analysis |
| 04/20/2006 | US20060081378 Gas operated pump for hydrocarbon wells |
| 04/20/2006 | US20060081377 Motor cooler for submersible pump |
| 04/20/2006 | US20060081374 Process for downhole heating |
| 04/20/2006 | US20060081371 Sintered spherical pellets |
| 04/20/2006 | US20060081370 Self diverting matrix acid |
| 04/20/2006 | US20060081369 Divinyl sulfone crosslinking agents and methods of use in subterranean applications |
| 04/20/2006 | DE19628288B4 Zweifach redundantes Detonationssystem für Ölbrunnenperforatoren Dual redundant detonation system for Ölbrunnenperforatoren |
| 04/20/2006 | DE102004048692A1 Verfahren und Vorrichtung zur thermischen Stimulation von Gashydratformationen Method and apparatus for thermal stimulation of Gashydratformationen |
| 04/19/2006 | EP1647668A1 Well stimulation |
| 04/19/2006 | EP1604092A4 Method for drilling and completing wells |
| 04/19/2006 | EP1549824A4 Mono diameter wellbore casing |
| 04/19/2006 | EP1527254B1 An expandable metal liner for downhole components |
| 04/19/2006 | EP1446551B1 Downhole pump assembly and method of recovering well fluids |
| 04/19/2006 | CN2773347Y Pressure-differential one-way triple-flow valve |
| 04/19/2006 | CN2773345Y Plunger-type oil-well pump with direct underground dynamic drive |
| 04/19/2006 | CN2773311Y Multiple proportional injection apparatus in oil field with chemical oil driven |
| 04/19/2006 | CN2773310Y V-shaped precision self-cleaning sand-proof sieve tube with seam |
| 04/19/2006 | CN2773309Y Intelligent linear beam pumping unit |
| 04/19/2006 | CN2773308Y Intelligent linked pumping unit of well mouth |
| 04/19/2006 | CN1761799A Method and apparatus for treating a subterranean formation |
| 04/19/2006 | CN1760551A Electricity saving method of walking beam type pumping unit, and electricity saving mode walking beam typed pumping unit |
| 04/19/2006 | CN1760504A Method for producing light oil and flue gas from old-field by using powdered coal without adding hydrogen |
| 04/19/2006 | CN1760503A Method for producing light oil and fluo gas through coal mine directly without adding hydrogen |
| 04/19/2006 | CN1252374C Method and system for controlling fluid flow into oil and/or gas production well |
| 04/19/2006 | CN1252373C Well repairing system and its method |
| 04/19/2006 | CN1252371C Oil-increasing pup joint |
| 04/18/2006 | US7028780 Expandable hanger with compliant slip system |
| 04/18/2006 | US7028776 Methods for the inhibition of salt blockages in oil and gas wells |
| 04/18/2006 | US7028775 A viscous diverting fluid made with a gelling amount of an amidoamine oxide surfactant and an acid is injected before main treatment(hydraulic/ acid fracturing and matrix acidizing); after the treatment acid decomposes the surfactant which alleviates potential of carrier fluids to damage formations |
| 04/18/2006 | US7028773 Assessing downhole WBM-contaminated connate water |
| 04/18/2006 | US7028772 Treatment well tiltmeter system |
| 04/18/2006 | US7028770 Tubular expansion apparatus and method |
| 04/18/2006 | CA2389760C Composition and process for oil extraction |
| 04/18/2006 | CA2375308C System for and a method of pumping fluids from a well |
| 04/18/2006 | CA2330094C Steam-assisted gravity drainage process |
| 04/18/2006 | CA2268295C Down-hole, production pump and circulation system |
| 04/18/2006 | CA2268155C Connector for an expandable tubing string |
| 04/18/2006 | CA2248683C Underwater installation and method for building of an underwater installation |
| 04/18/2006 | CA2187434C Computer controlled downhole tools for production well control |
| 04/18/2006 | CA2187424C Method and apparatus for the remote control and monitoring of production wells |
| 04/13/2006 | WO2006039665A2 Apparatus and method for well completion |
| 04/13/2006 | WO2006039362A2 Process for downhole heating |
| 04/13/2006 | WO2006038033A1 Improved hanging apparatus and method |
| 04/13/2006 | WO2006038016A1 Process for treating an underground formation |
| 04/13/2006 | WO2004097159A8 Thermal processes for subsurface formations |
| 04/13/2006 | US20060079408 A hardenable slurry containing an additive contains diatomaceous earth, finely divided paper as a suspending agent, lime, micronized cellulose papper as loss control material, sodium silicate, and sulfate; A drillable plug in a well bore adjacent to a plugged thief zone is formed by setting up the slurry |
| 04/13/2006 | US20060079407 Invertible well bore servicing fluid |
| 04/13/2006 | US20060079406 Mixture containing water soluble polymer and flow contorl agents |
| 04/13/2006 | US20060079405 Well drilling and servicing fluids with magnesia bridging solids and methods of drilling, completing and working over a well therewith |
| 04/13/2006 | US20060076347 In situ processing of hydrocarbon-bearing formations with automatic impedance matching radio frequency dielectric heating |
| 04/13/2006 | US20060076150 Inflow control device with passive shut-off feature |