| 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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| 06/08/2005 | CN2703897Y Split double-layer individual-pumping co-producing pump |
| 06/08/2005 | CN2703894Y Step double-layer indivisual-pumping co-producing pump |
| 06/08/2005 | CN2703870Y Blowout-proof sieve tube |
| 06/08/2005 | CN2703868Y Acidifying lower-sealing packer |
| 06/08/2005 | CN1625641A Extend of detonation determination method using seismic energy |
| 06/08/2005 | CN1205403C Method for creating secondary sidetracks in a well system |
| 06/08/2005 | CN1204948C Three-phase separator |
| 06/07/2005 | US6904366 Waterflood control system for maximizing total oil recovery |
| 06/07/2005 | US6902004 In situ thermal processing of a hydrocarbon containing formation using a movable heating element |
| 06/07/2005 | US6902003 Allowing heat to transfer from heaters to a formation selected for heating using a total organic matter weight percentage of > 5% and recirculating hydrogen |
| 06/07/2005 | US6902000 Apparatus and methods for expanding tubulars in a wellbore |
| 06/07/2005 | CA2306259C Prevention of sand plugging of oil well pumps |
| 06/07/2005 | CA2232948C Enhancement of flow rates through porous media |
| 06/07/2005 | CA2214459C Process for the consolidation of sand |
| 06/02/2005 | WO2005049964A1 Multi-purpose well bores and method for accessing a subterranean zone from the surface |
| 06/02/2005 | WO2005049963A1 Method for increasing oilfield recovery rates and oil production |
| 06/02/2005 | WO2005049954A2 Gravel pack crossover tool with single position multi-function capability |
| 06/02/2005 | WO2005001244A3 Expandable sand control screen and method for use of same |
| 06/02/2005 | WO2004067961B1 Lubrication system for radially expanding tubular members |
| 06/02/2005 | US20050119401 Water solubility; cosmetics |
| 06/02/2005 | US20050118364 Tubular member having an anti-galling coating |
| 06/02/2005 | US20050115719 Tubing expansion tool |
| 06/02/2005 | US20050115711 Method and system for determining an optimum pumping schedule corresponding to an optimum return on investment when fracturing a formation penetrated by a wellbore |
| 06/02/2005 | US20050115709 Method and system for controlling pressure in a dual well system |
| 06/02/2005 | US20050115619 Choke valve with temperature transmitter |
| 06/02/2005 | US20050115441 Faceted expansion relief perforating device |
| 06/02/2005 | US20050115391 Method and apparatus to improve perforating effectiveness using a unique multiple point initiated shaped charge perforator |
| 06/02/2005 | US20050114993 Methods, systems, and devices for saving natural resources usable in a building structure |
| 06/02/2005 | DE102004048615A1 Well treatment system for achieving transient underbalance condition in wellbore, comprises surge charge adapted upon activation to penetrate housing and not penetrate material exterior of housing |
| 06/02/2005 | DE102004041544A1 Sichere Aktivierung einer Bohrlochvorrichtung Secure activation of a downhole device |
| 06/02/2005 | CA2546040A1 Multi-purpose well bores and method for accessing a subterranean zone from the surface |
| 06/01/2005 | EP1536099A1 Methods of completing and producing a subterranean well associated apparatus |
| 06/01/2005 | EP1534925A1 Combined casing expansion / casing while drilling method and apparatus |
| 06/01/2005 | EP1534924A1 Well screen |
| 06/01/2005 | EP1534923A1 Subsea hydrocarbon production system |
| 06/01/2005 | EP1483479A4 Electrochemical process for effecting redox-enhanced oil recovery |
| 06/01/2005 | EP1232330A4 Method and apparatus for seismic stimulation of fluid-bearing formations |
| 06/01/2005 | CN2703122Y Tower type long-stroke pumping unit underloading protector |
| 06/01/2005 | CN2703121Y Gear rack type pumping unit |
| 06/01/2005 | CN1623040A Method for operating a well jet device during ultrasonic cleaning of the downhole area of a productive formation and device for carrying out said method |
| 06/01/2005 | CN1621484A Method for preparing residue free fracturing fluid |
| 06/01/2005 | CN1204341C Spiral tube system combined with submersible pump system |
| 06/01/2005 | CN1204330C Oil-base aluminium phosphate gelatinizer for fracture liquid and its preparation |
| 05/31/2005 | US6901391 Field/reservoir optimization utilizing neural networks |
| 05/31/2005 | US6899859 Method for preparing a H2-rich gas and a CO2-rich gas at high pressure |
| 05/31/2005 | US6899318 Wave seal to resist extrusion during equalization |
| 05/31/2005 | US6899182 Method of screen or pipe expansion downhole without addition of pipe at the surface |
| 05/31/2005 | US6899181 Methods and apparatus for expanding a tubular within another tubular |
| 05/31/2005 | US6899178 Method and system for wireless communications for downhole applications |
| 05/31/2005 | US6899176 Sand control screen assembly and treatment method using the same |
| 05/31/2005 | US6899175 Method and apparatus for seismic stimulation of fluid-bearing formations |
| 05/31/2005 | US6899172 Abrasion resistant frac head |
| 05/26/2005 | WO2005048664A2 High temperature circuits |
| 05/26/2005 | WO2005047646A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 05/26/2005 | WO2005047645A1 Method of reducing sand production from a wellbore |
| 05/26/2005 | WO2005047642A1 Vertical installation of an elongated process unit |
| 05/26/2005 | WO2005047637A2 System for extracting natural gas hydrate |
| 05/26/2005 | WO2005028803A9 Expandable tubular |
| 05/26/2005 | WO2004099551A3 Method and apparatus for penetrating subsurface formations |
| 05/26/2005 | US20050113261 Adding water soluble polymer and organophilic bentonite; stirring; storage stability |
| 05/26/2005 | US20050110655 RF communication with downhole equipment |
| 05/26/2005 | US20050109517 Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars |
| 05/26/2005 | US20050109516 Rotary and reciprocal well pump system |
| 05/26/2005 | US20050109515 System and Method for a Combined Submersible Motor and Protector |
| 05/26/2005 | US20050109514 Tree mounted well flow interface device |
| 05/26/2005 | US20050109512 Method to form a barrier in a reservoir with a magnetorheological fluid |
| 05/26/2005 | US20050109510 Expanded downhole screen systems and method |
| 05/26/2005 | US20050109509 Propellant ignition assembly and process |
| 05/26/2005 | US20050109508 Techniques and systems associated with perforation and the installation of downhole tools |
| 05/26/2005 | US20050109506 Methods for preparing slurries of coated particulates |
| 05/26/2005 | US20050109505 Method and system for extraction of resources from a subterranean well bore |
| 05/26/2005 | US20050109504 Subterranean hydrogen storage process |
| 05/26/2005 | US20050109501 Perforating gun with improved carrier strip |
| 05/26/2005 | CA2826503A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 05/26/2005 | CA2544489A1 System for extracting natural gas hydrate |
| 05/26/2005 | CA2526714A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 05/25/2005 | EP1533467A2 Multilateral well drilling and completion method and apparatus |
| 05/25/2005 | EP1532347A1 Closed loop multiphase underbalanced drilling process |
| 05/25/2005 | EP1377727B1 Method and apparatus for controlling downhole flow |
| 05/25/2005 | DE102004043948A1 Perforation gun used in well drill hole explosions in the crude oil and natural gas industry comprises elements for automatically closing the perforation holes and consisting of cartridges containing a swellable two-component foam |
| 05/25/2005 | CN2702085Y Long plunger telescoped feedback type thick oil pump |
| 05/25/2005 | CN2702084Y Oil-well pump without plunger piston and rigid pump barrel |
| 05/25/2005 | CN2702052Y Oil drain device |
| 05/25/2005 | CN2702051Y Screen pipe for special oil and gas reservoirs |
| 05/25/2005 | CN2702050Y Overlapped sand control pipe |
| 05/25/2005 | CN1619146A Horizontal oil-well pump |
| 05/25/2005 | CN1619097A Method of regulating layered water distribution using pressure wave |
| 05/25/2005 | CN1618952A Biodemulsifier, its preparation method and application |
| 05/25/2005 | CN1203325C Method and system for performing operations and for improving production in wells |
| 05/25/2005 | CN1203256C Method for making stainless steel oil pump |
| 05/24/2005 | US6896448 Automatically adjustable caisson clamp |
| 05/24/2005 | US6896059 Components and methods for use with explosives |
| 05/24/2005 | US6896057 Connector for expandable well screen |
| 05/24/2005 | US6896054 Microorganism enhancement with earth loop heat exchange systems |
| 05/24/2005 | US6896053 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources |
| 05/24/2005 | US6896052 Expanding tubing |
| 05/24/2005 | US6896049 Deformable member |
| 05/24/2005 | CA2450399A1 Method of and system for increasing productivity of oil, gas and hydrogeological wells |
| 05/24/2005 | CA2370172C Ribbed sealing element and method of use |
| 05/24/2005 | CA2138052C Breaking up of rock and the like |