| 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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| 03/06/2007 | CA2140125C Earth support fluid composition and method for its use |
| 03/01/2007 | WO2007025048A1 Tri-line power cable for electrical submersible pump |
| 03/01/2007 | WO2007024627A2 Sand control screen assembly enhanced with disappearing sleeve and burst disc |
| 03/01/2007 | WO2007024383A2 Method and apparatus associated with stimulation treatments for wells |
| 03/01/2007 | WO2007024263A2 Portable electrocrushing drill |
| 03/01/2007 | WO2007024234A1 Improved hydrocarbon production methods |
| 03/01/2007 | WO2007024142A1 A method of fragmenting hard particles |
| 03/01/2007 | WO2007024141A1 A method and a device for separating a gas from a liquid |
| 03/01/2007 | WO2007023262A1 Apparatus and methods for generating acoustic waves |
| 03/01/2007 | WO2007023233A1 Installation comprising at least two seafloor-surface connectors for at least two submarine pipelines resting on the seafloor |
| 03/01/2007 | WO2006062893A3 Method and apparatus for preventing slug flow in pipelines |
| 03/01/2007 | WO2006036575A3 Production of free gas by gas hydrate conversion |
| 03/01/2007 | WO2004081346A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 03/01/2007 | US20070049501 Fluid-loss control pills comprising breakers that comprise orthoesters and/or poly(orthoesters) and methods of use |
| 03/01/2007 | US20070049500 Borehole treating substance containing ether carboxylic acids |
| 03/01/2007 | US20070046115 Tri-line power cable for electrical submersible pump |
| 03/01/2007 | US20070044969 Perforating a Well Formation |
| 03/01/2007 | US20070044968 Perforating Gun |
| 03/01/2007 | US20070044965 Placing a fracturing fluid having a quality level at or above the foam transition point for the fluid and containing a liquid fracturing fluid, a gas, proppant particulates, and a foaming agent into a subterranean formation at a pressure sufficient to create or extend one or more fractures therein |
| 03/01/2007 | US20070044964 Technique and Apparatus to Deploy a Perforating Gun and Sand Screen in a Well |
| 03/01/2007 | US20070044963 System and Method for Controlling Undesirable Fluid Incursion During Hydrocarbon Production |
| 03/01/2007 | US20070044962 System and Method for Isolating Flow In A Shunt Tube |
| 03/01/2007 | US20070044961 Oil well completion by introducing a crosslinkable mixture of chitosan, a reactive polymer and a phenol source (phloroglucinol dihydrate) into a portion of a subterranean formation and allowing it to form a crosslinked gel; gelation-retarding additive; thermal stability |
| 03/01/2007 | US20070044957 Method for underground recovery of hydrocarbons |
| 03/01/2007 | CA2661026A1 Portable electrocrushing drill |
| 03/01/2007 | CA2620925A1 An apparatus and a method of fragmenting hard particles |
| 03/01/2007 | CA2618277A1 Method and apparatus associated with stimulation treatments for wells |
| 02/28/2007 | EP1757896A1 Injection molded shaped charge liner |
| 02/28/2007 | EP1756395A1 A method and a device for expanding a body under overpressure |
| 02/28/2007 | EP1756391A2 Modular drill system requiring limited field assembly and limited equipment support and method of use |
| 02/28/2007 | EP1755821A1 Method and apparatus for sealing radially expanded joints |
| 02/28/2007 | EP1706714B1 Instrumented tubular device for the transport of a pressurised fluid using bragg grating rosettes |
| 02/28/2007 | CN2874065Y Closed long stroke oil pump |
| 02/28/2007 | CN2874064Y Rotary flow oil pump |
| 02/28/2007 | CN2874021Y Long pipe sand filling model for physical analogue test |
| 02/28/2007 | CN2874018Y Well head back pressure controller for petroleum production |
| 02/28/2007 | CN2874014Y Water injection pipe string bottom valve |
| 02/28/2007 | CN1922385A Method and actuator device |
| 02/28/2007 | CN1922384A System for expanding a tubular element in a wellbore |
| 02/28/2007 | CN1920303A Single pump barrel two plunger pistons two circulation thick oil pump |
| 02/28/2007 | CN1920252A Oil-water media automatic cleaning filter |
| 02/28/2007 | CN1920251A Method and device for natural gas hydrate exploitation with in-situ catalytic oxidation thermochemistry method |
| 02/28/2007 | CN1920250A Underwell energy reservation and saving device for beam-pumping unit |
| 02/28/2007 | CN1920249A Small-scaled high-pressure natural gas well processing and utilization system |
| 02/28/2007 | CN1920246A System and method for completing a subterranean well |
| 02/28/2007 | CN1920245A Geological observation well mouth apparatus with exploitation process of thick oil steam drive gravity for oil leakage |
| 02/28/2007 | CN1920242A Mechanical block-relief oil production device |
| 02/28/2007 | CN1302386C Three-dimensinal composite drive computer simulating method for low-concentration surface active agent and phase state joint |
| 02/27/2007 | US7183239 Made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol. |
| 02/27/2007 | US7182142 Downhole apparatus |
| 02/27/2007 | US7182141 Expander tool for downhole use |
| 02/27/2007 | US7182138 Reservoir communication by creating a local underbalance and using treatment fluid |
| 02/27/2007 | US7182136 Methods of reducing water permeability for acidizing a subterranean formation |
| 02/27/2007 | US7182135 Plug systems and methods for using plugs in subterranean formations |
| 02/27/2007 | US7182134 Intelligent well system and method |
| 02/27/2007 | US7182132 Linearly scalable geothermic fuel cells |
| 02/27/2007 | CA2356194C Procedures and equipment for profiling and jointing of pipes |
| 02/23/2007 | CA2555726A1 Environmentally friendly defoamer |
| 02/22/2007 | WO2007022472A2 Method and apparatus to pump liquids from well |
| 02/22/2007 | WO2007022166A1 Communicating fluids with a heated-fluid generation system |
| 02/22/2007 | WO2007022122A2 Biogenic methane production enhancement systems |
| 02/22/2007 | WO2007021975A1 Gripping assembly for exandable tubulars |
| 02/22/2007 | WO2007021531A1 Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process |
| 02/22/2007 | WO2007021274A1 Pulse width modulated downhole flow control |
| 02/22/2007 | WO2007021181A1 Hydrocyclone |
| 02/22/2007 | WO2007019630A1 Dehydration of a natural gas in an underwater environment |
| 02/22/2007 | US20070042912 Delayed tackifying compositions and associated methods involving controlling particulate migration |
| 02/22/2007 | US20070042306 Apparatus for igniting combustible mediums |
| 02/22/2007 | US20070039742 Method and apparatus for coupling expandable tubular members |
| 02/22/2007 | US20070039741 Sand control screen assembly enhanced with disappearing sleeve and burst disc |
| 02/22/2007 | US20070039740 Method and Apparatus to Pump Liquids from a Well |
| 02/22/2007 | US20070039739 Well chemical treatment utilizing plunger lift delivery system with chemically improved plunger seal |
| 02/22/2007 | US20070039737 Dual function cleaning tool |
| 02/22/2007 | US20070039736 Communicating fluids with a heated-fluid generation system |
| 02/22/2007 | US20070039733 Delayed tackifying compositions and associated methods involving controlling particulate migration |
| 02/22/2007 | US20070039732 Methods and compositions for improving hydrocarbon recovery by water flood intervention |
| 02/22/2007 | US20070039729 Method of increasing reservoir permeability |
| 02/22/2007 | CA2746617A1 Communicating fluids with a heated-fluid generation system |
| 02/22/2007 | CA2618385A1 Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process |
| 02/21/2007 | EP1618278B1 Expander system for incremental expansion of a tubular element |
| 02/21/2007 | EP1399641B1 Pipe centralizer and method of attachment |
| 02/21/2007 | CN2871914Y Oil-submersible anticorrosive electric pump |
| 02/21/2007 | CN2871913Y Hole top unit of screw oil-pum |
| 02/21/2007 | CN2871912Y Long-ram and self-oil releasing sandproofing oil-pumping unit |
| 02/21/2007 | CN2871839Y Intelligent jetting system on ground oil field |
| 02/21/2007 | CN2871837Y Sewage oil returning unit at well opening |
| 02/21/2007 | CN2871836Y Depressed return-pressure accessory of oil well |
| 02/21/2007 | CN2871835Y Inner-wall cathode protector of oil and water separator |
| 02/21/2007 | CN2871834Y Combined drainer for acidifying or fracturing ground and jet-flowing pump |
| 02/21/2007 | CN2871833Y Multifunctional hollow water distributor |
| 02/21/2007 | CN2871832Y Stratified water-ejecting tubular column with ground controlling and well washing functions |
| 02/21/2007 | CN2871831Y Oil tubular column separator |
| 02/21/2007 | CN2871830Y Jetted steam, CO and N combined supplier for production of oil field |
| 02/21/2007 | CN2871829Y Reversed sandproofing tubular column |
| 02/21/2007 | CN2871828Y Closed-pipeline discharging transferring device |
| 02/21/2007 | CN2871827Y Power aided dragging oil pumping unit |
| 02/21/2007 | CN2871826Y Self-circulating hot-washing wax remover of oil well having no harm to pay |
| 02/21/2007 | CN2871824Y Water-jetting single flowing valve of gravity push stop |
| 02/21/2007 | CN1918361A Suppressing fluid communication to or from a wellbore |
| 02/21/2007 | CN1916428A Dual control automatic water injection method for pump control and pump pressure flow |