| 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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| 08/30/2006 | CN2811564Y Positive pressure heating buffer device |
| 08/30/2006 | CN2811563Y Recovering and utilizing device for gas from wellhead casing |
| 08/30/2006 | CN2811562Y Oil tank capable of reclaiming and heating dirty oil and waste water |
| 08/30/2006 | CN2811561Y Double layer compression fracture and drainage integrated pipe string without pulling string |
| 08/30/2006 | CN2811560Y Combined polymer preparation injection device |
| 08/30/2006 | CN2811559Y Integrated synergic composite inner blind-hole gun |
| 08/30/2006 | CN2811558Y Composite perforating gun |
| 08/30/2006 | CN2811557Y Double head oil pumping device |
| 08/30/2006 | CN1272523C Method for treating hydrocarbon-containing rock formation, and method for producing gas and hydrocarbon energy |
| 08/29/2006 | US7097386 Simultaneous development of underground caverns and deposition of materials |
| 08/29/2006 | US7096975 Modular design for downhole ECD-management devices and related methods |
| 08/29/2006 | US7096954 Method and apparatus for placement of multiple fractures in open hole wells |
| 08/29/2006 | US7096953 In situ thermal processing of a coal formation using a movable heating element |
| 08/29/2006 | US7096947 Fluid loss control additives for use in fracturing subterranean formations |
| 08/29/2006 | US7096946 Rotating blast liner |
| 08/29/2006 | US7096945 Sand control screen assembly and treatment method using the same |
| 08/29/2006 | US7096943 Method for growth of a hydraulic fracture along a well bore annulus and creating a permeable well bore annulus |
| 08/29/2006 | US7096942 In situ thermal processing of a relatively permeable formation while controlling pressure |
| 08/29/2006 | US7096941 In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer |
| 08/29/2006 | US7096939 Slotted expandable centraliser |
| 08/29/2006 | US7096938 Slip energized by longitudinal shrinkage |
| 08/29/2006 | US7096937 Flow completion system |
| 08/29/2006 | US7096570 Tubing expansion tool |
| 08/29/2006 | US7096551 Installation tool for oil and grease seals |
| 08/29/2006 | CA2357620C Annular flow restrictor for electrical submersible pump |
| 08/29/2006 | CA2294009C Apparatus for and a method of drilling a lateral borehole |
| 08/29/2006 | CA2210592C Joint assembly |
| 08/24/2006 | WO2006088826A2 Conserving components of fluids |
| 08/24/2006 | WO2006088376A1 Arrangement related to a separator for the cleaning of such separator |
| 08/24/2006 | WO2006063207A3 Unsintered mesh sand control screen |
| 08/24/2006 | WO2006023537A3 Solid statae pump |
| 08/24/2006 | US20060189488 Method and composition for recovering hydrocarbon fluids from a subterranean reservoir |
| 08/24/2006 | US20060189486 Treating a hydrocarbon-containing formation with a mixture of aliphatic anionic surfactant and a branched aliphatic nonionic additive to reduce interfacial surface tension between fluids (e.g., water, hydrocarbons) to allow interaction with different hydrocarbons to form an emulsion |
| 08/24/2006 | US20060186038 Hydrocyclone for down-hole use |
| 08/24/2006 | US20060185898 Method and apparatus for stimulating wells with propellants |
| 08/24/2006 | US20060185856 Multi-layer deformable composite construction for use in a subterranean well |
| 08/24/2006 | US20060185853 Gas lift plunger arrangement |
| 08/24/2006 | US20060185850 Methods of treating subterranean formations using derivatized gelling agents |
| 08/24/2006 | US20060185849 Flow Control |
| 08/24/2006 | US20060185848 Fracturing fluids comprising degradable diverting agents and methods of use in subterranean formations |
| 08/24/2006 | US20060185847 Methods of placing treatment chemicals |
| 08/24/2006 | US20060185846 Methods for forming a permeable and stable mass in a subterranean formation |
| 08/24/2006 | US20060185845 Treating a hydrocarbon-containing formation with a mixture of aliphatic anionic surfactant and a branched aliphatic nonionic additive to reduce interfacial surface tension between fluids (e.g., water, hydrocarbons) to allow interaction with different hydrocarbons to form an emulsion |
| 08/24/2006 | US20060185843 Assembly and method for determining thermal properties of a formation and forming a liner |
| 08/24/2006 | US20060185839 Propellant cartridge with restrictor plugs for fracturing wells |
| 08/24/2006 | CA2598073A1 Viscoelastic surfactant fluids and associated acidizing methods |
| 08/24/2006 | CA2597909A1 Radial expansion of a wellbore casing against a formation |
| 08/24/2006 | CA2597713A1 Conserving components of fluids |
| 08/23/2006 | EP1692423A1 Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion |
| 08/23/2006 | EP1692422A1 Method of assembling two hermetic threaded tubular joints comprising a local and initial added thickness, by means of plastic expansion |
| 08/23/2006 | EP1692421A1 Production by plastic expansion of a sealed tubular joint with inclined abutting surface(s) |
| 08/23/2006 | EP1613410A4 Hydrocyclone for down-hole use |
| 08/23/2006 | EP1402149B1 Method and apparatus for gravel packing a well |
| 08/23/2006 | EP1325207B1 Gas operated pump for use in a wellbore |
| 08/23/2006 | EP1305501B1 Method for treating multiple wellbore intervals |
| 08/23/2006 | EP1268974B1 Tool and method for managing fluid flow in a well |
| 08/23/2006 | CN2809269Y Junk prevention device for oil well pump |
| 08/23/2006 | CN2809212Y Throwing-in and salvaging type down-hole filter |
| 08/23/2006 | CN2809211Y Central production allocation and water distribution device |
| 08/23/2006 | CN2809210Y Perforating charge with after effect |
| 08/23/2006 | CN2809209Y Anti-corrosion sand-filtering screen pipe with inner lining |
| 08/23/2006 | CN2809208Y Environment-friendly smoke exhaust ventilator protection hood |
| 08/23/2006 | CN1823209A Portable, surface-mounted well pump |
| 08/23/2006 | CN1821636A Ball shape flow limit valve and its use in liquid transport pipeline |
| 08/23/2006 | CN1821544A Novel high efficiency air pressure type oil producing machine |
| 08/23/2006 | CN1821543A Novel high efficiency rotary oil puming machine |
| 08/23/2006 | CN1821542A Novel oil production underground device |
| 08/23/2006 | CN1821541A Underground reciprocating oil puming machine driven by rotary motor |
| 08/23/2006 | CN1271316C Wax-bearing low-seepage oil deposit steam injection heating recovery method |
| 08/23/2006 | CN1271315C Polymer displaced steam injecting hot oil deposit exploiting method |
| 08/23/2006 | CN1271314C Water displaced steam injecting hot masout exploiting method |
| 08/23/2006 | CN1271313C Crude oil recovery apparatus and method |
| 08/23/2006 | CN1271312C Electrical well heating apparatus and method |
| 08/22/2006 | US7093665 Method of adapting a downhole multi-phase twin screw pump for use in wells having a high gas content and a downhole multi-phase twin screw pump |
| 08/22/2006 | US7093663 Methods to solve alkaline-sulfate scales and related-gases problems |
| 08/22/2006 | US7093661 feeding power fluid to downhole turbines or engines in petroleum wells, controlling downhole separators |
| 08/22/2006 | US7093659 Controlling chlorite or hypochlorite break rate of well treatment fluids using magnesium or calcium ions |
| 08/22/2006 | US7093658 treating a subterranean formation with a mixture of water, a gas, a gelling agent, and a foaming additive of an amidopropyl betaine substituted with capryloyl, a capryl, an octyl, a decyl, or a cococyl radical |
| 08/22/2006 | US7093656 Solid expandable hanger with compliant slip system |
| 08/22/2006 | US7093655 Method for the recovery of hydrocarbons from hydrates |
| 08/22/2006 | US7093653 Downhole filter |
| 08/22/2006 | US7093652 Plunger with multiple jackets |
| 08/22/2006 | US7093651 Water pressure system with pressure tank installed within well casing of well |
| 08/22/2006 | CA2461237C Utilizing heat at a steam assisted gravity drainage oil recovery operation |
| 08/22/2006 | CA2401745C Organic acid system for high temperature acidizing |
| 08/22/2006 | CA2395581C Filter for subterranean wells |
| 08/22/2006 | CA2250613C Electric submergible motor protector |
| 08/17/2006 | WO2006086592A1 One trip cemented expandable monobore liner system and method |
| 08/17/2006 | WO2006086591A1 One trip cemented expandable monobore liner system and method |
| 08/17/2006 | WO2006086590A1 One trip cemented expandable monobore liner system and method |
| 08/17/2006 | WO2006086589A1 One trip cemented expandable monobore liner system and method |
| 08/17/2006 | WO2006085870A1 Flow regulator for use in a subterranean well |
| 08/17/2006 | WO2006085775A1 Method and equipment for the reduction of multiple dispersions |
| 08/17/2006 | WO2006085773A1 Sound source for stimulation of oil reservoirs |
| 08/17/2006 | US20060183646 Viscoelastic surfactant fluids and associated methods |
| 08/17/2006 | US20060180353 Concentrating oil well fluid by passing oil well fluid through a cavitation device, adding at least one moiety of at least one component of concentrated oil well fluid to increase the concentration thereof in concentrated oil well fluid, and reusing the concentrated oil well fluid |
| 08/17/2006 | US20060180317 Coil tubing hanger and method of using same |
| 08/17/2006 | US20060180316 Assembly of downhole equipment in a wellbore |
| 08/17/2006 | US20060180310 Viscoelastic surfactant fluids and associated methods |
| 08/17/2006 | US20060180309 Viscoelastic surfactant fluids and associated diverting methods |