| 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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| 01/02/2007 | US7156193 Continuous positive flow backflash prevention system |
| 01/02/2007 | US7156182 Method and apparatus for one trip tubular expansion |
| 01/02/2007 | US7156180 Expandable tubing and method |
| 01/02/2007 | US7156179 Expandable tubulars |
| 01/02/2007 | US7156178 Using buffered hydrogen peroxide or per-acids to remove polymers while simultaneously dissolving encountered calcium carbonate deposits |
| 01/02/2007 | US7156176 Installation and use of removable heaters in a hydrocarbon containing formation |
| 01/02/2007 | US7156175 Preventing the formation of fractures in a subterranean formation during a drilling; separating fluids; forming lightweight well treatment fluids; enhancing permeability |
| 01/02/2007 | CA2540415C Proppants and their manufacture |
| 01/02/2007 | CA2531202C Pumping water from a natural gas well |
| 01/02/2007 | CA2406801C Treatment well tiltmeter system |
| 01/02/2007 | CA2289811C Isolation of subterranean zones |
| 01/02/2007 | CA2282875C Gas-injection piping method for hydrocarbon-producing well |
| 01/02/2007 | CA2249139C Method and apparatus for top to bottom expansion of tubulars |
| 12/28/2006 | WO2006137002A1 Degradable fiber systems for stimulation |
| 12/28/2006 | WO2006136768A1 Methods and apparatus for multiple fracturing of subterranean formations |
| 12/28/2006 | WO2006136031A1 Clay control additive for wellbore fluids |
| 12/28/2006 | WO2006121341B1 Method and device for filtering in a well. |
| 12/28/2006 | WO2006115965A3 Systems and methods for producing oil and/or gas |
| 12/28/2006 | WO2005078235A9 Suppressing fluid communication to or from a wellbore |
| 12/28/2006 | US20060290197 Oil extraction system and method |
| 12/28/2006 | US20060289536 Subsurface electrical heaters using nitride insulation |
| 12/28/2006 | US20060289353 Desanding apparatus and system |
| 12/28/2006 | US20060289168 System and method for optimizing transferred fluid volume during an oil well pumping cycle |
| 12/28/2006 | US20060289167 Methods and apparatus for multiple fracturing of subterranean formations |
| 12/28/2006 | US20060289166 High-pressure Injection Proppant System |
| 12/28/2006 | US20060289165 Forming a foamed fracturing fluid comprising: water; surfactant comprising a tertiary alkyl amine ethoxylate; gelling agent; gas;introducing the foamed fracturing fluid into a subterranean formation at a pressure sufficient to create a fracture in the subterranean formation; introducing acid |
| 12/28/2006 | US20060289164 Treating drilling fluids for oil wells in clay and/or shale with an ion exchanging mixture of amine salts and cationic polymers, such as polydiallyldimethylammoniium chloride and quaternized hexamethylenediamine; antiswelling agents; minimize fines migration; pore penetration; broad pH effective |
| 12/28/2006 | US20060289160 Methods of hydraulic fracturing and of propping fractures in subterranean formations |
| 12/28/2006 | US20060289158 Introducing a water-soluble polymer having carbonyl groups, an organic crosslinking agent with an amine group capable of crosslinking the carbonyl groups, and a water-soluble carbonate retarder into a subterranean formation, crosslinking to form a gel |
| 12/28/2006 | US20060289157 Gas-assisted gravity drainage (GAGD) process for improved oil recovery |
| 12/28/2006 | US20060289155 An Ultrasonic Estimating Method and Apparatus for a Cased Well |
| 12/27/2006 | EP1736633A1 Self-conforming well screen |
| 12/27/2006 | EP1735524A2 A method and apparatus for downhole fluid analysis for reservoir fluid characterization |
| 12/27/2006 | EP1735523A1 Tagged propping agents and related methods |
| 12/27/2006 | EP1658416B1 Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars |
| 12/27/2006 | EP1606491B1 Casing conveyed well perforating apparatus and method |
| 12/27/2006 | EP1483520B1 High torque modified profile threaded tubular connection |
| 12/27/2006 | EP1438484B1 An installation for the separation of fluids |
| 12/27/2006 | EP1305503B1 Fracturing different levels within a completion interval of a well |
| 12/27/2006 | EP1210502B1 Apparatus for and method of anchoring a first conduit to a second conduit |
| 12/27/2006 | CN2852214Y Program control device of pumping unit |
| 12/27/2006 | CN2851651Y Multifunctional oil feeding device for common tubing pump used in pumping well |
| 12/27/2006 | CN2851649Y Pilot-controlled external working barrel of hydraulic piston pump in integral sliding bush |
| 12/27/2006 | CN2851645Y DC-driven tri-vane downhole oil well pump |
| 12/27/2006 | CN2851644Y Bottom-supported oil well pump |
| 12/27/2006 | CN2851643Y Sand-settling disposable plunger pump |
| 12/27/2006 | CN2851642Y High-efficiency oil well pump |
| 12/27/2006 | CN2851641Y Boosting jet pump for oil well |
| 12/27/2006 | CN2851567Y Portable well-logging and perforating ground system |
| 12/27/2006 | CN2851566Y Thermal-recovery sand-proof filling tool |
| 12/27/2006 | CN2851565Y Adjustable plug |
| 12/27/2006 | CN2851564Y Intelligent water-flooding control system in oil field water distributing station |
| 12/27/2006 | CN2851563Y On-line intelligent oxygen-removal device for oil field water flooding |
| 12/27/2006 | CN2851562Y Orientable perforating bar dropper |
| 12/27/2006 | CN2851561Y Stainless-steel fine sand-screening pipe |
| 12/27/2006 | CN2851560Y Adjustable support beam of single-crank double pumping unit holder |
| 12/27/2006 | CN2851559Y Swab used in oil well |
| 12/27/2006 | CN2851558Y Water-withdrawal gas-production swirl atomizer |
| 12/27/2006 | CN2851557Y Symmetrically-placed speed reducers |
| 12/27/2006 | CN2851556Y Floor type electronically-controlled friction pumping unit |
| 12/27/2006 | CN2851535Y Electric pump sand-settling apparatus |
| 12/27/2006 | CN2851534Y Holding device for swabbing ground-sliding vehicle |
| 12/27/2006 | CN2851523Y Beam hanger for pumping machine |
| 12/27/2006 | CN2851507Y Heat-conductive coiled sucker rod |
| 12/27/2006 | CN1886574A Improvements in and relating to oil well perforators |
| 12/27/2006 | CN1884794A Layered steam distribution system for steam flooding and steam distribution method thereof |
| 12/27/2006 | CN1884793A 空心配水器密封装置 Hollow with water seal device |
| 12/27/2006 | CN1884792A Fiber composite sand control process without sieve tube and treatment agent formula |
| 12/27/2006 | CN1292146C Pump device with double-cone unit and its usage method |
| 12/27/2006 | CA2510902A1 Variable sizable wound spring wire screen |
| 12/27/2006 | CA2510900A1 Vibrating downhole screen |
| 12/26/2006 | US7153575 Particulate material having multiple curable coatings and methods for making and using same |
| 12/26/2006 | US7152687 Expandable tubular with port valve |
| 12/26/2006 | US7152684 Tubular hanger and method of lining a drilled bore |
| 12/26/2006 | US7152683 Method for operating a well jet device during cleaning of the downhole area of a formation and device for carrying out said method |
| 12/26/2006 | US7152682 Subsea process assembly |
| 12/26/2006 | US7152681 Method and arrangement for treatment of fluid |
| 12/26/2006 | US7152680 Slickline power control interface |
| 12/26/2006 | US7152679 Downhole tool for deforming an object |
| 12/26/2006 | US7152678 System and method for downhole operation using pressure activated valve and sliding sleeve |
| 12/26/2006 | US7152677 Method and gravel packing open holes above fracturing pressure |
| 12/26/2006 | US7152676 Techniques and systems associated with perforation and the installation of downhole tools |
| 12/26/2006 | US7152675 Subterranean hydrogen storage process |
| 12/26/2006 | US7152673 Contractable and expandable tubular wellbore system |
| 12/26/2006 | US7152657 In-situ casting of well equipment |
| 12/21/2006 | WO2006135849A2 Systems and methods for fluid quality sensing, data sharing and data visualization |
| 12/21/2006 | WO2006135744A2 Oil extraction system and method |
| 12/21/2006 | WO2006134456A1 A connection arrangement |
| 12/21/2006 | WO2006134367A1 Water flooding method |
| 12/21/2006 | WO2006117517A3 Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods |
| 12/21/2006 | WO2006101618A3 Hydraulically controlled burst disk subs (hcbs) |
| 12/21/2006 | WO2006069372A3 Method and apparatus to hydraulically bypass a well tool |
| 12/21/2006 | US20060283804 Combined degassing and flotation tank |
| 12/21/2006 | US20060283607 Bore isolation |
| 12/21/2006 | US20060283604 Shunt tube connector lock |
| 12/21/2006 | US20060283603 Expandable tubular |
| 12/21/2006 | US20060283601 Packer insert for sealing on multiple items used in a wellbore |
| 12/21/2006 | US20060283597 Reducing pH of a servicing fluid comprising providing a crosslinked, viscous servicing fluid comprising an acid-releasing degradable material; acidification; subterranean well formations |
| 12/21/2006 | US20060283596 Coiled tubing overbalance stimulation system |
| 12/21/2006 | US20060283592 Method useful for controlling fluid loss in subterranean formations |