| 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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| 05/05/2005 | US20050096207 Forming, shaping, and low temperature curing of sol gel ceramics comprised of a blend of aluminosilicates and alkali metal silicates and coated with an epoxy resin, a furan resin, or a phenolic resin; high compressive strength, chemical resistance, and low specific gravity; hydraulic fracturing |
| 05/05/2005 | US20050093250 High-strength sealed connection for expandable tubulars |
| 05/05/2005 | US20050092691 Gas-gas-water treatment system for groundwater and soil remediation |
| 05/05/2005 | US20050092501 Interventionless reservoir control systems |
| 05/05/2005 | US20050092498 Methods for increasing production from a wellbore |
| 05/05/2005 | US20050092493 Engineered solution for controlled buoyancy perforating |
| 05/05/2005 | US20050092492 Contacting oil or gas formation in a sequence with an aqueous solution, a hydrocarbon fluid, a glycol ether solvent, an epoxy resin derived from bisphenols, or a poly phenolic resin (novolac resins) in a glycol ether solvent, and then with a polyamine curing agent |
| 05/05/2005 | US20050092490 Completion apparatus and methods for use in hydrocarbon wells |
| 05/05/2005 | US20050092489 Methods for controlling migration of particulates in a subterranean formation |
| 05/05/2005 | US20050092488 Pressure Control Apparatus and Method |
| 05/05/2005 | US20050092486 Coalbed gas production systems |
| 05/05/2005 | US20050092485 Annular isolators for expandable tubulars in wellbores |
| 05/05/2005 | US20050092483 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
| 05/05/2005 | US20050092482 System for extracting natural gas hydrate |
| 05/05/2005 | US20050092363 Method for providing a temporary barrier in a flow pathway |
| 05/04/2005 | EP1527255A1 Method of hydraulic fracture of subterranean formation |
| 05/04/2005 | EP1527254A1 An expandable metal liner for downhole components |
| 05/04/2005 | EP1527234A1 Method and device for soil analysis |
| 05/04/2005 | EP0996812B1 Deformed multiple well template and process of use |
| 05/04/2005 | CN2697348Y Load distributed hydraulic conveying pump |
| 05/04/2005 | CN2697315Y Integrated polymer mixing filling device |
| 05/04/2005 | CN2697314Y Pressure type safety ignitor of petroleum wall |
| 05/04/2005 | CN2697311Y Pipe assembly for quick releasing casing pressure |
| 05/04/2005 | CN1200198C Control method for automatic balance regulation of pumping unit |
| 05/03/2005 | US6888097 Fiber optics laser perforation tool |
| 05/03/2005 | US6886636 Downhole fluid disposal apparatus and methods |
| 05/03/2005 | US6886634 Sand control screen assembly having an internal isolation member and treatment method using the same |
| 05/03/2005 | US6886466 Water-permeable woven borehole sleeve having apertures and receiving explosive chare; rigid casing adapted to guide; leakage prevention; sealing |
| 05/03/2005 | US6886406 Downhole deposition monitoring system |
| 05/03/2005 | CA2329471C Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
| 04/28/2005 | WO2005038347A2 Apparatus for igniting combustible mediums |
| 04/28/2005 | WO2005038326A1 Guide tube for a flexible duct for transporting hydrocarbons |
| 04/28/2005 | WO2005038196A1 Method for using earth mantel material for hydrogen production |
| 04/28/2005 | WO2005038195A1 Method to improve perforating effectiveness using a charge perforator |
| 04/28/2005 | WO2005038194A1 Method of increasing productivity of oil, gas and hydrogeological wells |
| 04/28/2005 | WO2005038145A2 Method and device for recovering petroleum from a tank disposed on a sea bed, particularly a wreck |
| 04/28/2005 | WO2004094770B1 Downhole pump |
| 04/28/2005 | WO2003059549A8 Protective sleeve for threaded connections for expandable liner hanger |
| 04/28/2005 | US20050090406 Methods of preparing and using clean viscous well treating fluids and compositions |
| 04/28/2005 | US20050089419 Sealed ESP Motor System |
| 04/28/2005 | US20050087983 Reinforced tubular joint for improved sealing-tightness after plastic expansion |
| 04/28/2005 | US20050087346 Screen and Method Having a Partial Screen Wrap |
| 04/28/2005 | US20050087345 Multi-layer deformable composite construction for use in a subterranean well |
| 04/28/2005 | US20050087341 Liquid gelling agent concentrates and methods of treating wells therewith |
| 04/28/2005 | US20050087340 Method and system for underground treatment of materials |
| 04/28/2005 | US20050087337 Liner hanger with sliding sleeve valve |
| 04/28/2005 | US20050087336 Orbital downhole separator |
| 04/28/2005 | US20050086807 Downhole screen manufacturing method |
| 04/28/2005 | CA2541923A1 Method to improve perforating effectiveness using a charge perforator |
| 04/28/2005 | CA2541169A1 Apparatus for igniting combustible mediums |
| 04/27/2005 | EP1525373A2 Stimulation and injection system |
| 04/27/2005 | EP1525371A1 Telescopic guide line for offshore drilling |
| 04/27/2005 | EP1287230A4 Method and system for performing operations and for improving production in wells |
| 04/27/2005 | EP1214500B1 A retrievable module and operating method suitable for a seabed processing system |
| 04/27/2005 | CN2695681Y Semi-ball self-rotation high-efficient energy-saving anti-sand pump |
| 04/27/2005 | CN2695679Y Oil-well pump |
| 04/27/2005 | CN2695677Y Plunger contraction-expansion self-rotation whole cylinder oil-well pump |
| 04/27/2005 | CN2695676Y Electromagnetic driving device |
| 04/27/2005 | CN2695675Y Gum filling type self-aligning polish rod sealing device |
| 04/27/2005 | CN2695633Y Movable integral device for treating waste liquid of oil field drilling fractrure work |
| 04/27/2005 | CN2695632Y Dynamic control chemical feeding device with integral input unit for crude oil pipeline |
| 04/27/2005 | CN2695631Y Perforation fracture recombiner |
| 04/27/2005 | CN2695630Y Sheet screen anti-sand tube for well of oil field |
| 04/27/2005 | CN2695629Y Large path multi-direction conversion cup filling tool |
| 04/27/2005 | CN2695628Y Double-eccentric fixed well controlling tool for oil-gas field |
| 04/27/2005 | CN2695620Y Realeasing gadget filling tool |
| 04/27/2005 | CN1610788A Method of expanding a tubular element in a wellbore |
| 04/27/2005 | CN1609448A Full-protection settling antiseizing oil-well pump |
| 04/27/2005 | CN1609409A Method and apparatus for producing natural gas hydras utilizing microwave heating |
| 04/27/2005 | CN1609408A Method for beating donkey head of oil-field pumping unit |
| 04/26/2005 | US6883613 Flow control apparatus for use in a wellbore |
| 04/26/2005 | US6883612 Rod pump |
| 04/26/2005 | US6883611 Sealed multilateral junction system |
| 04/26/2005 | US6883610 Straddle packer systems |
| 04/26/2005 | US6883608 Gravel packing method |
| 04/26/2005 | US6883607 Method and apparatus for stimulating heavy oil production |
| 04/26/2005 | US6883606 Differential pressure controller |
| 04/26/2005 | CA2388664C Well stimulation tool and method of using same |
| 04/26/2005 | CA2361284C Flow-operated valve |
| 04/26/2005 | CA2355224C Self-lubricating swage |
| 04/26/2005 | CA2263486C Variable orifice gas lift valve for high flow rates with detachable power source and method of using |
| 04/21/2005 | WO2005035995A1 Fluid phase distribution adjuster |
| 04/21/2005 | WO2005035942A1 Saponin-containing composition and its uses |
| 04/21/2005 | WO2005035940A1 Improvements in and relating to perforators |
| 04/21/2005 | WO2005035939A1 Improvements in and relating to oil well perforators |
| 04/21/2005 | WO2005035937A1 Mud flow back valve |
| 04/21/2005 | WO2005035150A1 Arrangement and method for introducing reagents into a flow of groundwater |
| 04/21/2005 | WO2004092530A3 Radially expanding casing and driling a wellbore |
| 04/21/2005 | WO2004056441B1 Method and apparatus for mixture separation |
| 04/21/2005 | US20050085676 Methods for inhibiting hydrate blockage in oil and gas pipelines using betaines and amine oxides |
| 04/21/2005 | US20050085675 Methods for inhibiting hydrate blockage in oil and gas pipelines using ester compounds |
| 04/21/2005 | US20050085396 Antiagglomerants; prevent plugging conduits, valves, pipes, transfer lines |
| 04/21/2005 | US20050084393 Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| 04/21/2005 | US20050082092 Apparatus in a Drill String |
| 04/21/2005 | US20050082067 Process for sequentially applying SAGD to adjacent sections of a petroleum reservoir |
| 04/21/2005 | US20050082065 Pass through valve and stab tool |
| 04/21/2005 | US20050082064 Hybrid coiled tubing/fluid pumping unit |
| 04/21/2005 | US20050082061 Methods and apparatus for completing wells |
| 04/21/2005 | US20050082060 Well screen primary tube gravel pack method |
| 04/21/2005 | US20050082058 Method for enhancing methane production from coal seams |