| 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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| 02/14/2008 | US20080035341 Non-acid acidizing methods and compositions |
| 02/14/2008 | US20080035340 Composition and method relating to the prevention and remediation of surfactant gel damage |
| 02/14/2008 | US20080035339 Composition and method relating to the prevention and remediation of surfactant gel damage |
| 02/14/2008 | US20080035338 providing a viscosified treatment fluid that comprises an aqueous base fluid, an apparent cross linked reaction product of a polysaccharide and dual functional component (Na2SO5) ; introducing the treatment fluid into the subterranean formation at a pressure sufficient to create or enhance a fracture |
| 02/14/2008 | US20080035336 Three phase downhole separator apparatus and process |
| 02/14/2008 | US20080035330 Well screen apparatus and method of manufacture |
| 02/14/2008 | US20080035327 Method and frame |
| 02/14/2008 | US20080035325 Polished rod rotator |
| 02/14/2008 | US20080034951 Perforating system comprising an energetic material |
| 02/14/2008 | CA2671353A1 A motor direct drive rod ground screw pump device |
| 02/14/2008 | CA2649728A1 High density perforating gun system producing reduced debris |
| 02/13/2008 | EP1885994A1 A device for selective movement of well tools and also a method of using same |
| 02/13/2008 | EP1885993A2 A method and a system for enhanced flow line control |
| 02/13/2008 | EP1885989A1 Apparatus and method for driving casing or conductor pipe |
| 02/13/2008 | EP1761681B1 Performing gun assembly and method for enhancing perforation depth |
| 02/13/2008 | EP1261802B1 Environmentally friendly method for generating energy from natural gas |
| 02/13/2008 | CN201021662Y A gas injection oil exploration pole pump |
| 02/13/2008 | CN201021623Y Recycling automatic cleaner for oil pumping well bushing gas |
| 02/13/2008 | CN201021622Y An injection device for three-dimension chemical driven oil |
| 02/13/2008 | CN201021621Y An injection device for single well integrated three-dimension chemical driven oil |
| 02/13/2008 | CN201021620Y A multi-well single media injection device for three-dimension chemical driven oil |
| 02/13/2008 | CN201021619Y A multi-well and multi-media injection device for three-dimension chemical driven oil |
| 02/13/2008 | CN201021618Y Hydraulic floating beam oil smoke extractor |
| 02/13/2008 | CN201021617Y Dragging dual well oil smoke extractor for rare earth permanent magnetic no gear synchronization |
| 02/13/2008 | CN201021613Y A separator for ultra-expansion thermal exploration |
| 02/13/2008 | CN201021612Y Separation device for dense SAGD steam driven gas injection well |
| 02/13/2008 | CN201021606Y A device for preventing from oil well drop and suspender impact |
| 02/13/2008 | CN201021605Y Piston deviated friction preventive oil pumping pole |
| 02/13/2008 | CN101122993A Pumping unit inspection maintenance and fee determination method |
| 02/13/2008 | CN101122259A Coalbed gas and integral combined circulated polygeneration generation system |
| 02/13/2008 | CN101122239A Coalbed drilling hole inside directional dissevering method |
| 02/13/2008 | CN101122238A Drilling hole inside directional dissevering method |
| 02/13/2008 | CN101122227A Fire flooding oil extraction crude oil combustion-assistant ignition process |
| 02/13/2008 | CN101122226A Method of high temperature hydrocarbon gas convection heating oil shale for exploiting oil gas |
| 02/13/2008 | CN101122225A Fire flooding oil extraction method for vertical well gas-injection horizontal well oil extraction |
| 02/13/2008 | CN101122224A Gravity-assisted steam flooding exploitation method for heavy laver common heavy oil reservoir |
| 02/13/2008 | CN101122223A Offshore platform rich natural gas re-injection system |
| 02/13/2008 | CN101122222A Down-hole horizontal hole exploitation system for mixing gas displacing coal gas, and the method |
| 02/13/2008 | CN101122221A Hydraulic expansion type screen pipe hanger |
| 02/13/2008 | CN101122220A Swelling type screen pipe suspension method and swelling type screen pipe hanger |
| 02/13/2008 | CN101122219A Well-repairing process for casing deformed oil and water well |
| 02/13/2008 | CN101122218A Drift sand well harnessing process |
| 02/13/2008 | CN101122217A Down-hole pump drainage laneway exploitation system for mixing gas dispelling coal gas, and the method |
| 02/13/2008 | CN101122214A Mechanical swelling type screen pipe hanger |
| 02/12/2008 | US7330779 Method and system for improving pump efficiency and productivity under power disturbance conditions |
| 02/12/2008 | US7329962 Hydrocratic generator |
| 02/12/2008 | US7328749 Method and apparatus for accumulating liquid and initiating upward movement when pumping a well with a sealed fluid displacement device |
| 02/12/2008 | US7328748 Thermal actuated plunger |
| 02/12/2008 | US7328746 Method and composition for forming protective precipitate on cement surfaces prior to formation acidizing treatment |
| 02/12/2008 | US7328744 Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids |
| 02/12/2008 | US7328743 Toe-to-heel waterflooding with progressive blockage of the toe region |
| 02/12/2008 | US7328741 System for sensing riser motion |
| 02/12/2008 | CA2457307C Hybrid coiled tubing/fluid pumping unit |
| 02/12/2008 | CA2440041C Demulsifier for aqueous completion fluids |
| 02/12/2008 | CA2425242C Downhole crossover tool with chemical treating or packer inflation features |
| 02/12/2008 | CA2392277C Bottom hole assembly |
| 02/12/2008 | CA2304938C Slanted well enhanced extraction process for the recovery of heavy oil and bitumen using heat and solvent |
| 02/12/2008 | CA2287606C Vacuum tank for use in handling oil and gas well cuttings |
| 02/12/2008 | CA2286018C High impact communication and control system |
| 02/11/2008 | CA2555957A1 Automated gas well controller |
| 02/07/2008 | WO2008015632A2 Technique and apparatus for drilling and completing a well in one half trip |
| 02/07/2008 | WO2008015540A2 Articulated extraction pipe |
| 02/07/2008 | WO2007147053A3 In-situ radiofrequency heating of oil shale |
| 02/07/2008 | WO2007092631A3 Multifunctional multipolymeric surfactants for oil and bitumen recovery and other applications |
| 02/07/2008 | US20080032900 Ecological compatibility, stability, performance; invert emulsion base, thinners, emulsifiers and weighting agents; deep water wells; free of organophilic clays |
| 02/07/2008 | US20080032898 Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 02/07/2008 | US20080029305 Mechanical parts having increased wear resistance |
| 02/07/2008 | US20080029303 Technique and apparatus for drilling and completing a well in one half trip |
| 02/07/2008 | US20080029272 Multi gas well production arrangement |
| 02/07/2008 | US20080029268 Flow Diverter |
| 02/07/2008 | US20080029266 Biocide for well stimulation and treatment fluids |
| 02/07/2008 | CA2659383A1 Biocide for well stimulation and treatment fluids |
| 02/07/2008 | CA2658756A1 Technique and apparatus for drilling and completing a well in one half trip |
| 02/06/2008 | CN201016335Y Energy-saving skidded intelligent hydraulic pumping unit |
| 02/06/2008 | CN201016334Y Anti-bumping oil-well pump oil inlet valve |
| 02/06/2008 | CN201016333Y Checking teeth type sliding rail screw |
| 02/06/2008 | CN201016295Y Sand-filtering removal degassing apparatus |
| 02/06/2008 | CN201016294Y Air-tight container fluid jet desanding device |
| 02/06/2008 | CN201016293Y Front reversal beam pumping unit |
| 02/06/2008 | CN201016292Y Beam-pumping unit counterbalance regulating means |
| 02/06/2008 | CN201016291Y Tower pumping unit |
| 02/06/2008 | CN201016281Y Breaking-proof polish rod clip for pumping unit rope hanger |
| 02/06/2008 | CN101120154A Arrangement related to a separator for the cleaning of such separator |
| 02/06/2008 | CN101120153A Method and system for cleaning a well bore |
| 02/06/2008 | CN101117956A Anti-scaling, anti-corrosive and sand prevention ceramic oil-well pump and manufacturing method therefor |
| 02/06/2008 | CN101117886A On-line ash-blowing apparatus for steam injection boiler burning petroleum oil coke slurry instead of fuel oil |
| 02/05/2008 | US7325631 Mill and pump-off sub |
| 02/05/2008 | US7325620 Recoverable, reinforced and vibration-damping plug used for cased wells |
| 02/05/2008 | US7325618 Tubing expansion tool |
| 02/05/2008 | US7325616 System and method for completing multiple well intervals |
| 02/05/2008 | US7325615 Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods |
| 02/05/2008 | US7325613 Crosslinkable polymer compositions comprising phenols and associated methods |
| 02/05/2008 | US7325612 One-trip cut-to-release apparatus and method |
| 02/05/2008 | US7325609 Completion apparatus and methods for use in hydrocarbon wells |
| 02/05/2008 | US7325608 Methods of hydraulic fracturing and of propping fractures in subterranean formations |
| 02/05/2008 | US7325606 Methods and apparatus to convey electrical pumping systems into wellbores to complete oil and gas wells |
| 02/05/2008 | US7325604 Method for enhancing oil production using electricity |
| 02/05/2008 | US7325603 Methods of well treatment |
| 02/05/2008 | US7325602 Method and apparatus for forming a mono-diameter wellbore casing |
| 02/05/2008 | US7325596 Pothead assembly |