| 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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| 04/03/2001 | US6211120 Application of aluminum chlorohydrate in viscosifying brine for carrying proppants in gravel packing |
| 04/03/2001 | US6210955 Foam transport process for in-situ remediation of contaminated soils |
| 04/03/2001 | US6210126 Device and process intended for two-phase compression of a gas soluble in a solvent |
| 04/03/2001 | US6210078 Methods for the in situ removal of a contaminant from soil |
| 04/03/2001 | US6210075 Spar system |
| 04/03/2001 | US6210073 Multi-level fluid transfer apparatus, system and process |
| 04/03/2001 | US6209651 Well production apparatus and method |
| 04/03/2001 | US6209650 Subsea well |
| 04/03/2001 | US6209643 Method of controlling particulate flowback in subterranean wells and introducing treatment chemicals |
| 04/03/2001 | US6209642 Apparatus and method for enhancing fluid and gas recovery in a well |
| 04/03/2001 | US6209641 Method and apparatus for producing fluids while injecting gas through the same wellbore |
| 04/03/2001 | US6209640 Method of obtaining improved geophysical information about earth formations |
| 04/03/2001 | US6209637 Plunger lift with multipart piston and method of using the same |
| 04/03/2001 | CA2222205C Spoolable coiled tubing completion system |
| 04/03/2001 | CA2202174C Apparatus for increasing the transfer rate of production stimulation fluids through a wellhead of a hydrocarbon well |
| 03/29/2001 | WO2001021935A1 Valve for use in wells |
| 03/29/2001 | WO2001021931A1 Method for installing a well casing into a subsea well |
| 03/29/2001 | WO2000077502A3 Gamma ray density profile sensor with passively cooled pin photodiodes |
| 03/28/2001 | EP1087099A1 Method of competing a well in an unconsolidated subterranean zone |
| 03/28/2001 | EP1086336A1 Pipeline monitoring systems |
| 03/28/2001 | CN1063825C Method for treatment of injection water for oilfield |
| 03/27/2001 | USRE37109 Method of and device for production of hydrocarbons |
| 03/27/2001 | US6207808 Catalytic method for the preparation of lignin phenol surfactants in organic solvents |
| 03/27/2001 | US6206645 Variable orifice gas lift valve for high flow rates with detachable power source and method of using |
| 03/27/2001 | US6206113 Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations apparatus |
| 03/27/2001 | US6206112 Multiple lateral hydraulic drilling apparatus and method |
| 03/27/2001 | US6206102 Injecting a dispersion of an organosilicon compound, a hydrophilic water-miscible dispersion medium, and a dispersant |
| 03/27/2001 | US6206100 Separable one-trip perforation and gravel pack system and method |
| 03/27/2001 | US6206099 Method for relating multiple oil or gas wells to each other |
| 03/27/2001 | US6206097 Vertical pumping system |
| 03/27/2001 | US6206093 System for pumping viscous fluid from a well |
| 03/27/2001 | CA2138401C Process and tool for laying underground collector mains for liquids and gases |
| 03/22/2001 | WO2001020746A1 Electrical power distribution suitable for a substantially underwater system |
| 03/22/2001 | WO2001020128A1 A retrievable module and operating method suitable for a seabed processing system |
| 03/22/2001 | WO2001020127A1 Well management system |
| 03/22/2001 | WO2001020126A2 System for enhancing fluid flow in a well |
| 03/22/2001 | WO2001020125A1 Expandable tubing |
| 03/22/2001 | WO2001020124A1 Method and apparatus for through tubing gravel packing, cleaning and lifting |
| 03/22/2001 | CA2383237A1 Well management system |
| 03/21/2001 | EP0996812A4 Deformed multiple well template and process of use |
| 03/21/2001 | EP0852653A4 Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means |
| 03/20/2001 | US6205289 Steam generation system for injecting steam into oil wells |
| 03/20/2001 | US6204429 Methods of remediation of chemical contaminants dispersed in geologic media |
| 03/20/2001 | US6203682 Well designs for electrokinetic remediation |
| 03/20/2001 | US6202751 Methods and compositions for forming permeable cement sand screens in well bores |
| 03/20/2001 | US6202750 Dual cylinder water well filter and method of using the same |
| 03/20/2001 | US6202744 Oil separation and pumping system and apparatus |
| 03/20/2001 | US6202742 Pack-off device for use in a wellbore having a packer assembly located therein |
| 03/20/2001 | CA2165150C Cryogenic stimulation method |
| 03/15/2001 | WO2001018355A1 Apparatus for and a method of anchoring an expandable conduit |
| 03/15/2001 | WO2001018354A1 Apparatus for and method of anchoring a first conduit to a second conduit |
| 03/15/2001 | WO2001018353A1 Expandable downhole tubing |
| 03/15/2001 | WO2000077406A3 Method for compressing a hydrocarbon-containing gaseous medium |
| 03/15/2001 | WO2000063519A9 Satellite separator platform (ssp) |
| 03/15/2001 | CA2316737A1 Method and system for exploiting natural resources under the seabed |
| 03/15/2001 | CA2282141A1 Gravel pack apparatus and method |
| 03/14/2001 | EP1083009A2 Soil decontamination |
| 03/14/2001 | EP1082518A1 Method and system for separating and injecting gas in a wellbore |
| 03/14/2001 | EP1082515A1 Offshore drilling system |
| 03/14/2001 | CN2423401Y Movable oil production separater |
| 03/14/2001 | CN2423400Y Underground oil-water separation type water injection oil production device |
| 03/14/2001 | CN1287594A Submersible pump assembly for use in a well |
| 03/14/2001 | CN1287593A Submersible pump assembly for use in a well |
| 03/14/2001 | CN1287590A Drive head for a rotary-driven rod assembly, especially for driving a sand pump |
| 03/14/2001 | CN1063253C Oil well sealed storing oil device |
| 03/13/2001 | US6200103 Gas lift plunger having grooves with increased lift |
| 03/13/2001 | US6199634 Method and apparatus for controlling the permeability of mineral bearing earth formations |
| 03/13/2001 | US6199632 Selectively locking locator |
| 03/13/2001 | US6199631 Well production apparatus |
| 03/09/2001 | CA2281727A1 Single string rotary pump system |
| 03/08/2001 | WO2001016487A1 A pumping unit |
| 03/08/2001 | WO2001016459A1 Chemical injector for oil well treatment |
| 03/07/2001 | EP1080296A1 Deformable liner tube |
| 03/07/2001 | CN2422447Y Ceramic sheet type sand-proof sieve tube |
| 03/07/2001 | CN1286665A Offshore production and storage facility and method of installing same |
| 03/07/2001 | CN1286357A Full-autometic oil producing unit |
| 03/07/2001 | CN1286356A Low-height pumping unit with cylindrical chain and long stroke |
| 03/06/2001 | US6197730 Thermostable enzyme breakers for hydrolysis of galactomannans in hydraulic fracturing fluids |
| 03/06/2001 | US6197095 For remote separation operation at deep and ultra deep water depths for processing well fluids and solids prior to transport to surface, or disposal either subsea or to surface |
| 03/06/2001 | US6196766 Apparatus for movement along an underground passage and method using same |
| 03/06/2001 | US6196336 Method and apparatus for drilling boreholes in earth formations (drilling liner systems) |
| 03/06/2001 | US6196324 Casing differential pressure based control method for gas-producing wells |
| 03/06/2001 | US6196323 Well head system |
| 03/06/2001 | US6196322 Underwater installation and method for building of an underwater installation |
| 03/06/2001 | US6196318 Method for optimizing acid injection rate in carbonate acidizing process |
| 03/06/2001 | US6196314 Insoluble salt control system and method |
| 03/06/2001 | US6196313 Method and apparatus for hydrocarbon production and reservoir water disposal |
| 03/06/2001 | US6196312 Dual pump gravity separation system |
| 03/06/2001 | US6196310 Well production apparatus |
| 03/01/2001 | WO2001014691A1 Well screen having an internal alternate flowpath |
| 03/01/2001 | WO2001014649A1 Apparatus and method for sea bed excavation |
| 03/01/2001 | WO2000077343A9 Apparatus and method for producing oil and gas |
| 03/01/2001 | DE19925502C1 Verfahren zur Gewinnung von Öl aus Bohrschlamm und/oder ölhaltigen Bohrschlammfraktionen A process for the extraction of oil from drilling mud and / or oil-containing Bohrschlammfraktionen |
| 02/28/2001 | EP1078022A1 Injection molded degradable casing perforation ball sealers |
| 02/28/2001 | EP0699269B1 Method for placement of a scale inhibitor in a formation |
| 02/28/2001 | CN2421428Y Balance weight for beam-pumping unit |
| 02/28/2001 | CN1285457A Gas and vapour generator |
| 02/28/2001 | CN1062637C Method of creating casing in borehole |
| 02/27/2001 | US6194356 Gelling composition for wellbore service fluids |
| 02/27/2001 | US6193881 In-situ chemical reactor for recovery of metals or purification of salts |