| 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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| 08/05/2004 | WO2003023178A3 Adjustable expansion cone assembly |
| 08/05/2004 | US20040152602 Injecting at high pressure into the formation a fracturing fluid comprising an aqueous acid, a synthetic polymer, a metal crosslinking agent and lactic acid or a salt; crosslinking the synthetic polymer and metal crosslinking agent |
| 08/05/2004 | US20040149454 Downhole sealing |
| 08/05/2004 | US20040149453 Well provided with flexible production tubing |
| 08/05/2004 | US20040149450 Method and apparatus for expanding a welded connection |
| 08/05/2004 | US20040149447 Method and apparatus for controlling downhole flow |
| 08/05/2004 | US20040149446 Power connection to and/or control of wellhead trees |
| 08/05/2004 | US20040149445 Fluid transportation system |
| 08/05/2004 | US20040149444 Multilateral well construction and sand control completion |
| 08/05/2004 | US20040149442 Apparatus and methods for radially expanding a tubular member |
| 08/05/2004 | US20040149441 Methods and compositions for preventing fracture proppant flowback |
| 08/05/2004 | US20040149440 Method and apparatus for downhole tubular expansion |
| 08/05/2004 | US20040149439 Flash welding process for field joining of tubulars for expandable applications |
| 08/05/2004 | US20040149438 Process for the recovery of oil from a natural oil reservoir |
| 08/05/2004 | US20040149437 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 08/05/2004 | US20040149436 System and method for automating or metering fluid recovered at a well |
| 08/05/2004 | US20040149435 Well screen assembly and system with controllable variable flow area and method of using same for oil well fluid production |
| 08/05/2004 | US20040149434 Monitoring a reservoir in casing drilling operations using a modified tubular |
| 08/05/2004 | US20040149433 Recovery of products from oil shale |
| 08/05/2004 | US20040149432 Method and system for accessing subterranean deposits from the surface |
| 08/05/2004 | US20040149431 Method and apparatus for a monodiameter wellbore, monodiameter casing and monobore |
| 08/05/2004 | US20040149428 Downhole cable protection device |
| 08/05/2004 | US20040149418 In-situ casting of well equipment |
| 08/05/2004 | US20040148758 Radially expandable tubular with supported end portion |
| 08/04/2004 | EP1443175A1 Expandable casing with shape memory seal ring |
| 08/04/2004 | CN2630653Y Pipe-type heating furnace at oil-field portal |
| 08/04/2004 | CN2630526Y Screw pump sucker rod torsional buffer |
| 08/04/2004 | CN2630525Y Screw pump sucker rod tripping-preventing joint |
| 08/04/2004 | CN2630494Y Crude oil extract mud-sand-removing apparatus |
| 08/04/2004 | CN2630493Y Multi-stage pulse perforation fracturing composite apparatus |
| 08/04/2004 | CN2630492Y Perforation-strong overpressure balance symmetric fracturing apparatus |
| 08/04/2004 | CN2630491Y Multi-pulse multi-stage control fracturing apparatus |
| 08/04/2004 | CN2630490Y Heat, electricity gas combined supply apparatus for oil field extraction |
| 08/04/2004 | CN2630489Y Displacing dissolved air tank |
| 08/04/2004 | CN2630488Y Float-ring pump hollow sucker rod circulating sand-removing oil-producing apparatus |
| 08/04/2004 | CN2630487Y Oil well packed oil surface transition device |
| 08/04/2004 | CN2630483Y Multi-stage long-acting sealer |
| 08/04/2004 | CN1517550A Sand-resistant oil-well pump |
| 08/04/2004 | CN1517510A Method for hierarchical regulating water flow of water injection well in oil field |
| 08/03/2004 | US6769488 Well treatment tool and method of treating a well |
| 08/03/2004 | US6769485 In situ production of synthesis gas from a coal formation through a heat source wellbore |
| 08/03/2004 | US6769484 Downhole expandable bore liner-filter |
| 08/03/2004 | US6769483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources |
| 08/03/2004 | CA2299176C Method of locating wellbore casing collars using dual-purpose magnet |
| 08/03/2004 | CA2217627C Control of particulate flowback in subterranean wells |
| 08/03/2004 | CA2118969C Method and apparatus for controlling steam breakthrough in a well |
| 08/03/2004 | CA2070727C Electrical submersible pump for lifting heavy oils |
| 07/31/2004 | CA2418195A1 Method of steam injection through a horizontal well bore to stimulate oil well production |
| 07/29/2004 | WO2004063621A2 Distributed natural gas storage system(s) using oil & gas & other well(s) |
| 07/29/2004 | WO2004063527A1 Method and apparatus for treating a subterranean formation |
| 07/29/2004 | WO2004063526A1 Casing conveyed well perforating apparatus and method |
| 07/29/2004 | WO2004063524A1 Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other production wells |
| 07/29/2004 | WO2004063310A2 Advanced gas injection method and apparatus liquid hydrocarbon recovery complex |
| 07/29/2004 | WO2004027200A3 Bottom plug for forming a mono diameter wellbore casing |
| 07/29/2004 | WO2004023053A3 Downhole separator and method |
| 07/29/2004 | WO2004018824A3 Magnetic impulse applied sleeve method of forming a wellbore casing |
| 07/29/2004 | WO2004016335A3 A gas-liquid separator positionable down hole in a well bore |
| 07/29/2004 | WO2004013448A3 Method for using coconut coir as a lost circulation material for well drilling |
| 07/29/2004 | WO2003083263A3 Method and apparatus for sleeving a borehole |
| 07/29/2004 | WO2003038230A3 Electrochemical process for effecting redox-enhanced oil recovery |
| 07/29/2004 | US20040147407 Polyesterether copolymer, where in anionic diacid monomer or diester monomer selected from dimethyl 5-sulfoisophthalate, sulfosuccinic acid, 4-sulfophthalic acid, sulfonaphthalic acid, salts and anhydrides; applied to crude oil processes |
| 07/29/2004 | US20040146288 Temperature limited heaters for heating subsurface formations or wellbores |
| 07/29/2004 | US20040145969 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation |
| 07/29/2004 | US20040145184 Helically wound expandable tubular insert |
| 07/29/2004 | US20040144568 Drilling system with expandable sleeve |
| 07/29/2004 | US20040144545 Fluid removal from gas wells |
| 07/29/2004 | US20040144544 Arrangement for and method of restricting the inflow of formation water to a well |
| 07/29/2004 | US20040144543 Wellhead product testing system |
| 07/29/2004 | US20040144541 Forming wellbores using acoustic methods |
| 07/29/2004 | US20040144540 High voltage temperature limited heaters |
| 07/29/2004 | US20040144539 Apparatus and method to mechanically orient perforating systems in a well |
| 07/29/2004 | US20040144538 Alternative method to cementing casing and liners |
| 07/29/2004 | US20040144535 Post installation cured braided continuous composite tubular |
| 07/29/2004 | US20040144534 Self lubricating submersible pumping system |
| 07/29/2004 | US20040144530 Toroidal choke inductor for wireless communication and control |
| 07/29/2004 | DE10301338B3 Increasing permeability of productive strata and filter layers close to well borehole, inserts generator superimposing pressure pulses on production flow |
| 07/29/2004 | CA2513106A1 Distributed natural gas storage system(s) using oil & gas & other well(s) |
| 07/29/2004 | CA2513070A1 Advanced gas injection method and apparatus liquid hydrocarbon recovery complex |
| 07/28/2004 | EP1440449A2 Radially expandable tubular connection |
| 07/28/2004 | EP1440221A1 Combination well kick off and gas lift booster unit |
| 07/28/2004 | EP1440220A1 An entry well with slanted well bores and method |
| 07/28/2004 | EP1307271B1 Separation of a stream containing a multi-phase mixture of lighter and heavier density liquids and particles |
| 07/28/2004 | EP1204808B1 Drilling and completion system for multilateral wells |
| 07/28/2004 | CN2628753Y Double-sealing long-acting oil-well pump |
| 07/28/2004 | CN2628725Y Repeatable using Oil-gas well building perforator |
| 07/28/2004 | CN2628724Y Jacket type multi-stage pulse composite perforator apparatus |
| 07/28/2004 | CN2628723Y Direct-driven whole balancing oil pumping unit |
| 07/28/2004 | CN2628722Y Adjustable polishrod touching pump device |
| 07/28/2004 | CN2628720Y Water distribution packer |
| 07/28/2004 | CN1515784A Method for extracting mirabilite ore deposit by using drilling water soluble oil pad process |
| 07/28/2004 | CN1515783A Method for exploiting natural alkali mineral by utilizing horizontal butt well |
| 07/28/2004 | CN1515782A Water-blending process device |
| 07/28/2004 | CN1515781A Petroleum production and oil-pumping equipment |
| 07/28/2004 | CN1515780A Method for deblocking blocked pipe for extracting mirabilite ore deposit by using water soluble method and its equipment |
| 07/28/2004 | CN1159514C Chain-rope beam pumping unit |
| 07/28/2004 | CN1159407C Composition for washing oil-well, piepline, sleeve pipe, stratum and equipments and using method thereof |
| 07/28/2004 | CA2456600A1 Bladder pump for borehole sampling |
| 07/27/2004 | US6767527 Method for recovering CO2 |
| 07/27/2004 | US6767191 Method of compressing gaseous hydrocarbon-containing medium |
| 07/27/2004 | US6767165 Method and apparatus for connecting underwater conduits |