| 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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| 09/25/2003 | US20030178196 Isolation bypass transition joint |
| 09/25/2003 | US20030178195 Treating the accessed gas hydrate- containing formation so that gas is released from the formation, collecting released gas at a surface location and converting collected gas to liquid hydrocarbons at the surface location |
| 09/25/2003 | US20030178191 In situ recovery from a kerogen and liquid hydrocarbon containing formation |
| 09/25/2003 | CA2478868A1 Collapsible expansion cone |
| 09/24/2003 | EP1198275B1 Breaking of oil/water emulsion |
| 09/24/2003 | EP1131534B1 Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments |
| 09/24/2003 | CN2575327Y Hydraulic gear pump |
| 09/24/2003 | CN2575297Y Fixer for pulley on logging truck |
| 09/24/2003 | CN2575296Y Small-diameter sidewall ultrasound imaging logging instrument |
| 09/24/2003 | CN2575295Y Dewatering device state parameter ZW undamped pressure conductor |
| 09/24/2003 | CN2575294Y Special oil-gas-water-sand separator for offshore oil field floating production & storing apparatus |
| 09/24/2003 | CN1443944A Speed-reducing device for pipe or down-hole |
| 09/24/2003 | CN1443926A Method for improving low permeable mineral ieservoir |
| 09/24/2003 | CN1443925A Double-layer gun high-effective perforator |
| 09/24/2003 | CN1443924A Potential oil screw pump production system |
| 09/23/2003 | US6625447 Method and architecture for an interactive two-way data communication network |
| 09/23/2003 | US6623252 Hydraulic submersible insert rotary pump and drive assembly |
| 09/23/2003 | US6622798 Method and apparatus for maintaining a fluid column in a wellbore annulus |
| 09/23/2003 | US6622797 Apparatus and method to expand casing |
| 09/23/2003 | US6622794 Sand screen with active flow control and associated method of use |
| 09/23/2003 | US6622793 Method for carrying out operations on petroleum and gas fields and deep-sea platform for realizing the same |
| 09/23/2003 | US6622791 Method and apparatus for increasing fluid recovery from a subterranean formation |
| 09/23/2003 | US6622789 Downhole tubular patch, tubular expander and method |
| 09/23/2003 | CA2102980C Method for recovering oil from a subterranean oil containing formation |
| 09/18/2003 | WO2003076812A1 Method for operating a well jet device during cleaning of the downhole area of a formation and device for carrying out said method |
| 09/18/2003 | WO2003076763A1 Method and apparatus for one trip tubular expansion |
| 09/18/2003 | WO2003036018A3 Downhole actuator and tool |
| 09/18/2003 | US20030173288 Methods and apparatus for separation of solids from liquids by dissolved gas floatation |
| 09/18/2003 | US20030173276 Methods and apparatus for supplying high concentrations of dissolved oxygen and ozone for chemical and biological processes |
| 09/18/2003 | US20030173275 Method and apparatus for treatment of wastewater employing membrane bioreactors |
| 09/18/2003 | US20030173090 Lubrication and self-cleaning system for expansion mandrel |
| 09/18/2003 | US20030173086 Method and apparatus for injecting steam into a geological formation |
| 09/18/2003 | US20030173085 Upgrading and mining of coal |
| 09/18/2003 | US20030173082 In situ thermal processing of a heavy oil diatomite formation |
| 09/18/2003 | US20030173081 In situ thermal processing of an oil reservoir formation |
| 09/18/2003 | US20030173080 Heat sources positioned within the formation in a selected pattern raise a temperature of a portion of the formation to a pyrolysis temperature. |
| 09/18/2003 | US20030173078 In situ thermal processing of an oil shale formation to produce a condensate |
| 09/18/2003 | US20030173075 Knitted wire fines discriminator |
| 09/18/2003 | US20030173072 Forming openings in a hydrocarbon containing formation using magnetic tracking |
| 09/17/2003 | EP0974066A4 High impact communication and control system |
| 09/17/2003 | EP0910723B1 Device for limiting the bending radius of a flexible duct |
| 09/17/2003 | CN2573776Y Equalized torsion gear box |
| 09/17/2003 | CN2573726Y Effective valve for pumping well |
| 09/17/2003 | CN2573725Y Elastic expansion nano-ring sand control pump |
| 09/17/2003 | CN2573674Y Layer testing magnetic sealing device for water injection well |
| 09/17/2003 | CN2573673Y Evaporator device for production of viscous crude |
| 09/17/2003 | CN2573672Y Sand control plugging device for water injection well |
| 09/17/2003 | CN2573671Y Throttling plugging device |
| 09/17/2003 | CN2573670Y Scale preventing corrosion-resistant water distributor |
| 09/17/2003 | CN2573669Y Multipoint detonation petroleum perforator with waveform adjusting structure |
| 09/17/2003 | CN2573668Y Stainless steel corrugated cylindrical mesh hole type filtering screen pipe for oil production |
| 09/17/2003 | CN2573667Y Hydraulic single-cylinder cluster multi-well interactive self-balance pumping unit |
| 09/17/2003 | CN2573658Y Injection well testing plugging device pressure feeding unit |
| 09/17/2003 | CN1443268A Method for treating multiple wellbore intervals |
| 09/16/2003 | US6620091 With an aqueous stream; natural gas |
| 09/16/2003 | US6619696 Expandable locking thread joint |
| 09/16/2003 | US6619402 System for enhancing fluid flow in a well |
| 09/16/2003 | US6619401 Methods of completing a subterranean well |
| 09/16/2003 | US6619400 Apparatus and method to complete a multilateral junction |
| 09/16/2003 | US6619397 Unconsolidated zonal isolation and control |
| 09/16/2003 | US6619396 Method of producing petroleum |
| 09/16/2003 | US6619394 Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| 09/16/2003 | US6619393 Method for locating oil wells |
| 09/16/2003 | US6619390 Particle separator for a fluid pump intake |
| 09/16/2003 | CA2220385C Placing and cementing casing in horizontal wells |
| 09/16/2003 | CA2137007C Method for removing alkaline sulfate scale |
| 09/13/2003 | CA2376584A1 Circulating tubing head |
| 09/12/2003 | WO2003074838A1 Closed system hydraulic expander |
| 09/12/2003 | WO2003074837A1 Expandable well tubing |
| 09/12/2003 | WO2003074836A1 Conductor system |
| 09/11/2003 | US20030170077 Riser with retrievable internal services |
| 09/11/2003 | US20030168858 High torque modified profile threaded tubular connection |
| 09/11/2003 | US20030168391 Separating a stream containing a multi-phase mixture and comprising lighter and heavier density liquids and particles entrained therein |
| 09/11/2003 | US20030168222 Closed system hydraulic expander |
| 09/11/2003 | US20030168220 Inflatable flow control device and method |
| 09/11/2003 | US20030168218 Conductor system |
| 09/11/2003 | US20030168216 Method for reducing sand production |
| 09/11/2003 | US20030168213 Extent of detonation determination method using seismic energy |
| 09/11/2003 | US20030168211 Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| 09/11/2003 | US20030167997 Subsea deployable drum for laying lines |
| 09/10/2003 | CN2572054Y Hydraulic screw pump |
| 09/10/2003 | CN2572046Y Plunger assembly for oil suction pump |
| 09/10/2003 | CN2572041Y Pipe type oil pump fixing valve |
| 09/10/2003 | CN2572040Y Oil suction pump |
| 09/10/2003 | CN2572001Y Adjustable survey seal section |
| 09/10/2003 | CN2572000Y Downhole out-phase separator |
| 09/10/2003 | CN2571999Y Quantitative water tap |
| 09/10/2003 | CN2571998Y Y-shape interactive self-balance electro-mechanical integrated intelligent oil suction machine for cluster well |
| 09/10/2003 | CN2571988Y slide sleeve connector for screen pipe connection and screen pipe having same |
| 09/10/2003 | CN1441871A Sand screen with integrated sensors |
| 09/10/2003 | CN1120918C Heated offshore pipeline and method of manufacturing |
| 09/09/2003 | US6617556 Method and apparatus for heating a submarine pipeline |
| 09/09/2003 | US6616716 Method of improving the flow properties of a crude oil or natural gas liquid |
| 09/09/2003 | US6615926 Annular flow restrictor for electrical submersible pump |
| 09/09/2003 | US6615925 Pump control method and apparatus |
| 09/09/2003 | US6615924 Apparatus and system control for the removal of fluids and gas from a well |
| 09/09/2003 | US6615921 Apparatus and method for remote adjustment of drill string centering to prevent damage to wellhead |
| 09/09/2003 | US6615917 Computer controlled injection wells |
| 09/04/2003 | WO2003072902A2 A system and method for fracturing and gravel packing a wellbore |
| 09/04/2003 | WO2003072328A1 Mobile blending apparatus |