| 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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| 02/28/2006 | US7004260 Method of sealing an annulus |
| 02/28/2006 | US7004258 Method and apparatus for enhancing oil and gas flow in a well |
| 02/28/2006 | US7004257 Apparatus and methods for separating and joining tubulars in a wellbore |
| 02/28/2006 | US7004255 Fracture plugging |
| 02/28/2006 | US7004254 introducing into the well an aqueous treatment fluid comprising water, and a friction reducing copolymer that comprises acrylamide in an amount between 60%-90% by weight and acrylic acid in an amount between 10%-20% by weight |
| 02/28/2006 | US7004253 Process for reducing the production of water in oil wells |
| 02/28/2006 | US7004251 Heating; recovering hydrocarbons, hydrogen |
| 02/28/2006 | US7004250 Sealing system for the interspace in the transition region between two well pipes of different diameters, and mounting tool for this |
| 02/28/2006 | US7004249 Method of transferring fluids through a permeable well lining |
| 02/28/2006 | US7004247 Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation |
| 02/28/2006 | US7004195 Discharge valve |
| 02/28/2006 | CA2683219A1 Method to control a main valve in a well |
| 02/28/2006 | CA2683215A1 Method to provide variability in fluid flow rates in a well |
| 02/28/2006 | CA2412911C Well stimulation tool and method of using same |
| 02/28/2006 | CA2360472C Sand screen with communication line conduit |
| 02/28/2006 | CA2209072C Downhole fluid separation system |
| 02/23/2006 | WO2006020799A2 A method and apparatus for downhole detection of co2 and h2s using resonators coated with co2 and h2s sorbents |
| 02/23/2006 | WO2006019977A2 Impact excavation system and method |
| 02/23/2006 | WO2006019880A2 Automated work platform of a mobile workover and well-servicing rig |
| 02/23/2006 | US20060041392 Method, computer program product and use of a computer program for stabilizing a multiphase flow |
| 02/23/2006 | US20060041028 adding to an aqueous fluid gelled with at least one amidoamine viscoelastic surfactant in an amount effective to reduce the viscosity of the gelled aqueous fluid, includes includes at least one metal ion source |
| 02/23/2006 | US20060040831 Methods and aqueous acid solutions for acidizing wells containing sludging and emulsifying oil |
| 02/23/2006 | US20060037758 Modular, distributed, ROV retrievable subsea control system, associated deepwater subsea blowout preventer stack configuration, and methods of use |
| 02/23/2006 | US20060037756 Method and apparatus for installing subsea insulation |
| 02/23/2006 | US20060037755 Solid state pump |
| 02/23/2006 | US20060037754 Gelled liquid hydrocarbon treatment fluids having reduced phosphorus volatility and their associated methods of use and preparation |
| 02/23/2006 | US20060037752 Rat hole bypass for gravel packing assembly |
| 02/23/2006 | US20060037751 Conveyance Device and Method of Use in Gravel Pack Operations |
| 02/23/2006 | US20060037747 Methods and apparatus for heating oil production reservoirs |
| 02/23/2006 | US20060037746 Downhole oil and water separator and method |
| 02/23/2006 | US20060037745 Expandable device for use in a well bore |
| 02/23/2006 | US20060037743 Electric motors for powering downhole tools |
| 02/23/2006 | CA2673440A1 Method and apparatus for downhole artificial lift system protection |
| 02/23/2006 | CA2576985A1 Hydroforming method and apparatus |
| 02/22/2006 | EP1278932B1 Apparatus and methods for forming a lateral wellbore |
| 02/22/2006 | EP1251912B1 Method for biosolid disposal and methane generation |
| 02/22/2006 | CN2760287Y Special purpose steel wire rope adhesive tape joint for oil extractor |
| 02/22/2006 | CN2760225Y Casting and dragging free injection allocation equipment for polymer injection |
| 02/22/2006 | CN2760224Y Sand prevention pipe |
| 02/22/2006 | CN2760223Y Sand prevention pipe with layered squeeze pack |
| 02/22/2006 | CN2760222Y Head sheave type long-stroke oil pumping unit |
| 02/22/2006 | CN2760221Y Head sheave type long-stroke oil pumping unit |
| 02/22/2006 | CN1738962A Biocidal control in recovery of oil by water injection |
| 02/22/2006 | CN1737377A Automatic water injection method using pump-control-pump to adjust pressure and flow |
| 02/22/2006 | CN1737330A Petroleum oil perforation gun |
| 02/22/2006 | CN1737329A Petroleum oil perforation gun |
| 02/22/2006 | CN1737328A Tower type pumping unit |
| 02/21/2006 | US7001872 Subterranean formation treating fluid and methods of fracturing subterranean formations |
| 02/21/2006 | US7001157 Well pumping unit driven by linear motor |
| 02/21/2006 | US7000704 Latch profile installation in existing casing |
| 02/21/2006 | US7000703 Sealed multilateral junction system |
| 02/21/2006 | US7000702 comprises water, a viscosity producing polymer, a boron crosslinking agent for the polymer, a delayed crosslink delinker that chelates the boron and breaks the treating fluid into low viscosity fluid selected from polysuccinamide and polyaspartate |
| 02/21/2006 | US7000701 Compositions and methods for weighting a breaker coating for uniform distribution in a particulate pack |
| 02/21/2006 | US7000699 Method and apparatus for orienting perforating devices and confirming their orientation |
| 02/21/2006 | US7000695 Expanding wellbore junction |
| 02/21/2006 | US7000694 Oil anchor |
| 02/21/2006 | US7000693 Control of hydrocarbon wells |
| 02/16/2006 | WO2006016333A1 Method for exploitation of gas hydrates |
| 02/16/2006 | WO2006016137A1 Flow diverter |
| 02/16/2006 | WO2005122313A3 Method and apparatus for performing chemical treatments of exposed geological formations |
| 02/16/2006 | WO2005024170A3 Radial expansion system |
| 02/16/2006 | US20060035790 Control of particulate flowback in subterranean formations using elastomeric resin coated proppants |
| 02/16/2006 | US20060035789 Surfactant package for well treatment and method using same |
| 02/16/2006 | US20060032640 Protective sleeve for threaded connections for expandable liner hanger |
| 02/16/2006 | US20060032636 Viscosified treatment fluids and associated methods of use |
| 02/16/2006 | US20060032634 Downhole surge pressure reduction and filtering apparatus |
| 02/16/2006 | US20060032633 Methods and compositions for carrier fluids comprising water-absorbent fibers |
| 02/16/2006 | US20060032632 Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subterranean formations |
| 02/16/2006 | US20060032631 Foldable hay rake |
| 02/16/2006 | US20060032630 Water treatment method for heavy oil production |
| 02/16/2006 | US20060032533 System and method for automating or metering fluid recovered at a well |
| 02/16/2006 | US20060032301 Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents |
| 02/16/2006 | DE10152418B4 Sprengvorrichtung zur Ausbildung horizontaler unterirdischer Hohlräume sowie Sprengverfahren hiermit Blasting apparatus for forming a horizontal underground cavities and blasting hereby |
| 02/15/2006 | EP1626159A2 Apparatus and methods for forming a lateral wellbore |
| 02/15/2006 | EP1626157A1 Deformable seal (div) |
| 02/15/2006 | EP1626156A1 Recovery of production fluids from an oil or gas well |
| 02/15/2006 | EP1625422A2 Formation-based interpretation of nmr data for carbonate reservoirs |
| 02/15/2006 | CN2758523Y Low speed piston pump |
| 02/15/2006 | CN2758522Y Boosting pump for hydraulic starting thick oil |
| 02/15/2006 | CN2758476Y Automatic height regulation and degassing device for well logging |
| 02/15/2006 | CN2758474Y Under well gas liquid separating and back filling sand proof gas recovering device |
| 02/15/2006 | CN2758473Y Gas sand separator for natural gas well |
| 02/15/2006 | CN2758472Y Fracturing pipe column |
| 02/15/2006 | CN2758471Y Fracturing gas lift integrated pipe column |
| 02/15/2006 | CN2758470Y Washing device of self producing mixed liquid |
| 02/15/2006 | CN2758469Y Polymer fillig station of single pump or multipump to multi well set |
| 02/15/2006 | CN2758468Y Sand proof screen pipe |
| 02/15/2006 | CN2758467Y Antiskipping groove device of hoisting sheave type beam pumping unit |
| 02/15/2006 | CN2758466Y Hydraulic unloading device of beam pumping unit |
| 02/15/2006 | CN2758465Y Rotary release proof sand carrier |
| 02/15/2006 | CN2758462Y Oil well casing chemical adding device |
| 02/15/2006 | CN2758460Y Layered acidification drain valve |
| 02/15/2006 | CN2758458Y Presetting type under well choke of gas well |
| 02/15/2006 | CN2758450Y Improved oil pumping machine rope suspending device |
| 02/15/2006 | CN1242157C Bracket for catenary standpipe |
| 02/15/2006 | CN1242156C Triple liquid draining system for perforation, stratum testing and jet flow pump |
| 02/14/2006 | US6997518 In situ thermal processing and solution mining of an oil shale formation |
| 02/14/2006 | US6997266 Expandable hanger and packer |
| 02/14/2006 | US6997264 Method of jointing and running expandable tubulars |
| 02/14/2006 | US6997263 Multi zone isolation tool having fluid loss prevention capability and method for use of same |