| 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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| 05/10/2001 | WO2000075510A3 A production system and method for producing fluids from a well |
| 05/10/2001 | US20010000996 Multiple tub mobile blender |
| 05/10/2001 | CA2324706A1 Sand protection system for electrical submersible pump |
| 05/09/2001 | EP1097760A2 Metal pipe expander |
| 05/09/2001 | EP1097287A1 Floating spar for supporting production risers |
| 05/09/2001 | CN2429629Y Vapor filling packer |
| 05/09/2001 | CN2429628Y Underground liquid mixer |
| 05/09/2001 | CN2429627Y Fixed oil bailer |
| 05/09/2001 | CN1294263A Hydraulic petroleum recovering machine |
| 05/09/2001 | CN1065605C Method for connecting underwater pipelines particularly suitable for great depths and big diameters |
| 05/08/2001 | US6228247 Electric field method and apparatus for decontaminating soil |
| 05/08/2001 | US6228146 Gas recovery device |
| 05/08/2001 | US6227303 Well screen having an internal alternate flowpath |
| 05/08/2001 | US6227302 Apparatus and method for controlling fluid flow in a wellbore |
| 05/08/2001 | US6227298 Well isolation system |
| 05/08/2001 | US6227296 Method to reduce water saturation in near-well region |
| 05/08/2001 | US6227222 Closed oil liquid ring gas compression system with a suction injection port |
| 05/03/2001 | WO2001031329A1 Deposition monitoring system |
| 05/03/2001 | WO2001031328A1 Downhole deposition monitoring system |
| 05/03/2001 | WO2001031298A2 Multiphase flow measurement system |
| 05/03/2001 | WO2001031167A1 Flow control apparatus for use in a subterranean well |
| 05/03/2001 | US20010000597 Recovery of zinc from geothermal brines |
| 05/03/2001 | DE19948345A1 Construction process for horizontal well filter uses well filter tube with filter gravel jacket inserted into dead end bore protected by bore hole tubing |
| 05/02/2001 | EP1094878A1 Sand resistant fluid swivel |
| 05/02/2001 | EP1075582A4 Subsea mud pump |
| 05/02/2001 | CN2428569Y Eccentric water-distribution device |
| 05/02/2001 | CN2428568Y Sand-prevention screening tube |
| 05/02/2001 | CN1293300A Method and equipment for perforating and forming fractures |
| 05/01/2001 | US6225720 Self-lubricating bearing |
| 05/01/2001 | US6224757 Treatment of liquids |
| 05/01/2001 | US6224355 Carbon dioxide pump and pumping system |
| 05/01/2001 | US6223825 Swivel |
| 05/01/2001 | US6223823 Method of and apparatus for installing casing in a well |
| 05/01/2001 | US6223819 Wellhead for providing structure when utilizing a well pumping system |
| 05/01/2001 | US6223818 Perforating gun brake |
| 05/01/2001 | CA2162437C Compact, high-efficiency, gas/liquid separator method and apparatus |
| 04/27/2001 | CA2291989A1 Well pressure system |
| 04/26/2001 | WO2001029368A1 Apparatus and method for controlling fluid flow with sand control |
| 04/26/2001 | WO2001000296A9 An apparatus for separation of a fluid flow, especially into a gas phase and a liquid phase |
| 04/26/2001 | US20010000379 Hydraulic tubing punch method of use |
| 04/25/2001 | EP1094194A2 Coiled tubing with an electrical cable for a down-hole pumping system and methods for manufacturing and installing such a system |
| 04/25/2001 | EP1094193A2 Dual riser assembly |
| 04/25/2001 | CN2427628Y Safety and non-wax-deposition oil prodn. tube |
| 04/25/2001 | CN2427627Y Concentric injection and oil collection means |
| 04/25/2001 | CN1065045C Equipment for installing energy-collecting explosive package on consumed bar type support frame |
| 04/24/2001 | US6220787 Ship type floating oil production system |
| 04/24/2001 | US6220370 Circulating gun system |
| 04/24/2001 | US6220358 Hollow tubing pumping system |
| 04/24/2001 | US6220357 Downhole flow control tool |
| 04/24/2001 | US6220356 Method and apparatus for well treating |
| 04/24/2001 | US6220355 Downhole apparatus |
| 04/24/2001 | US6220353 Full bore set down tool assembly for gravel packing a well |
| 04/24/2001 | US6220352 Injecting a micelle treating fluid into the well penetrating subterranean formation, comprising a 2 % potassium chloride water solution and a solvent and alkyl or alkylaryl polyoxyalkylene phosphate ester surfactant, displacing fluid |
| 04/24/2001 | US6220348 Retrievable bridge plug and retrieving tool |
| 04/24/2001 | US6220345 Well screen having an internal alternate flowpath |
| 04/24/2001 | US6220303 Device for limiting the bending radius of a flexible duct |
| 04/24/2001 | CA2198156C Nitrogen/carbon dioxide combination fracture treatment |
| 04/22/2001 | CA2323290A1 Method and apparatus to remove coiled tubing deployed equipment in high sand applications |
| 04/19/2001 | WO2001027755A1 Method and system for simulating a hydrocarbon-bearing formation |
| 04/19/2001 | WO2001027439A1 Process for enhancing hydrocarbon mobility using a steam additive |
| 04/19/2001 | WO2001027436A1 Well-perforating and/or packing apparatus and method |
| 04/19/2001 | WO2001027218A1 Treating a formation using a foam forming composition |
| 04/19/2001 | WO2001026860A1 Lubricant coating for expandable tubular members |
| 04/19/2001 | WO2001004535B1 Two-step radial expansion |
| 04/19/2001 | WO2000077431A3 Expandable connector |
| 04/19/2001 | WO2000073622A8 Method for carrying out operations on petroleum and gas fields and deep-sea platform for realising the same |
| 04/19/2001 | DE19949247A1 Process for supporting unlined trial bores comprises inserting flexible tubing in the bore hole and using a medium to place the tubing under pressure so that the bore hole is supported by controlled radial pressure |
| 04/18/2001 | EP1092080A1 Method and tool for fracturing an underground formation |
| 04/18/2001 | EP1092079A1 Process of preparing a gas composition and use thereof |
| 04/18/2001 | EP1092078A1 Flying lead workover interface system |
| 04/18/2001 | EP1025332A4 Multi-well computerized control of fluid pumping |
| 04/18/2001 | CN2426917Y Down-hole eccentric water distribution quantity plug |
| 04/18/2001 | CN1064730C Installation method for nozzle of pipe jetting device on jet well |
| 04/17/2001 | US6216788 Sand protection system for electrical submersible pump |
| 04/17/2001 | US6216786 Method for forming a fracture in a viscous oil, subterranean formation |
| 04/17/2001 | US6216785 System for installation of well stimulating apparatus downhole utilizing a service tool string |
| 04/17/2001 | US6216783 Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments |
| 04/17/2001 | US6216781 Well production apparatus |
| 04/17/2001 | CA2169808C Single horizontal wellbore process for the in-situ extraction of viscous oil by steam stimulation |
| 04/17/2001 | CA2101701C Apparatus and method for separating solid particles from liquids |
| 04/12/2001 | WO2001025596A1 Method for processing the production layer in a bottom hole area, packer therefor and method for securing a packer inside the bottom of a hole |
| 04/12/2001 | WO2001025595A1 Underbalanced perforation |
| 04/12/2001 | CA2388799A1 Method and packer for processing a productive formation in bottom-hole zone of a well, and method for fixing a packer inside a well |
| 04/10/2001 | US6214175 Dissociation of gas hydrates using electromagnetic radiation |
| 04/10/2001 | US6213215 System, vessel, seabed installation and method for producing oil or gas |
| 04/10/2001 | US6213208 Three component separation in an oil well |
| 04/10/2001 | US6213203 Lock mechanism for use with a downhole device |
| 04/10/2001 | US6213201 Tight sands gas well production enhancement system |
| 04/10/2001 | US6212952 System and process for optimizing gravity gradiometer measurements |
| 04/10/2001 | US6212948 Apparatus and method to obtain representative samples of oil well production |
| 04/10/2001 | CA2035091C Pumping system |
| 04/05/2001 | WO2001023707A1 Downhole separation device |
| 04/05/2001 | WO2001023705A1 Remote control and monitoring of oil and gas production wells |
| 04/05/2001 | WO2001023704A1 Tool assembly and monitoring applications using same |
| 04/05/2001 | WO2001023703A1 A method of improving the permeability of an underground petroleum-containing formation |
| 04/04/2001 | EP1087822A1 A method for remediating a medium |
| 04/04/2001 | EP0951612B1 Method for drying out rock containing immobile formation water within the encroachment area of natural gas deposits and gas reservoirs |
| 04/04/2001 | EP0852652A4 Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access |
| 04/04/2001 | CN2426026Y Upper catcher for oil pump |
| 04/04/2001 | CN1064109C Co-well oil-pumping and wate-injecting technological system |