| 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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| 01/18/2001 | WO2001003514A1 Method for reducing solids buildup in hydrocarbon streams produced from wells |
| 01/18/2001 | WO2000052293A3 Explosion prevention system for internal turret mooring system |
| 01/18/2001 | DE10028015A1 Adding a liner to a borehole by inserting liner on a mandrel, injecting liquid between the liner and the borehole and expanding the liner onto the wall |
| 01/18/2001 | CA2615908A1 Expansion cone for radially expanding a tubular member |
| 01/18/2001 | CA2615015A1 Expansion cone for radially expanding a tubular member |
| 01/18/2001 | CA2613421A1 Expandable tubular member and fabrication method therefor |
| 01/17/2001 | EP1068426A1 Apparatus and method for stimulating a subterranean formation |
| 01/17/2001 | CN2415158Y Fixed volume plug for separate zone water injection |
| 01/17/2001 | CN1280240A Tertiary oil-exploiting polymer and ternary composition distributing and injecting system for displacement of reservoir oil |
| 01/17/2001 | CN1060839C Method and equipment for treating well stream from off shore oil field |
| 01/16/2001 | US6174108 In-well air stripping and gas adsorption |
| 01/16/2001 | US6173784 Method and device for production of hydrocarbons |
| 01/16/2001 | US6173783 Method of completing and producing hydrocarbons in a well |
| 01/16/2001 | US6173779 Collapsible well perforating apparatus |
| 01/16/2001 | US6173776 Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use |
| 01/16/2001 | US6173775 Systems and methods for hydrocarbon recovery |
| 01/16/2001 | US6173774 Inter-tandem pump intake |
| 01/16/2001 | US6173773 Orienting downhole tools |
| 01/16/2001 | US6173768 Method and apparatus for downhole oil/water separation during oil well pumping operations |
| 01/16/2001 | CA2051367C Oil recovery system and method of using same |
| 01/16/2001 | CA2003475C Method and apparatus for high-efficiency gas separation upstream of a submersible pump |
| 01/12/2001 | CA2313747A1 Method for installing a template and a substructure on a sea bed and levelling of the template |
| 01/11/2001 | WO2001002699A1 Method of deploying an electrically driven fluid transducer system in a well |
| 01/11/2001 | WO2000063519A3 Satellite separator platform (ssp) |
| 01/10/2001 | CN2414221Y Strong sand-proof plunger assembly |
| 01/10/2001 | CN2414190Y Prossure-difference backwashing depecking type water-injection packer |
| 01/10/2001 | CN2414189Y Single well crude oil production tank |
| 01/10/2001 | CN1279747A Pump/motor assembly |
| 01/10/2001 | CN1279338A Electrically controlled layered injection and schedule of water for water injection wells in oil field |
| 01/10/2001 | CN1279336A Artificial well wall of oil well for preventing sand |
| 01/09/2001 | US6172011 Pumping fibers downhole with proppant to form porous pack that inhibits flow of solid particulates from well |
| 01/09/2001 | US6171483 Subsea raw water injection facility |
| 01/09/2001 | US6170572 Progressing cavity pump production tubing having permanent rotor bearings/core centering bearings |
| 01/09/2001 | US6170571 Apparatus for establishing branch wells at a node of a parent well |
| 01/04/2001 | WO2001000296A1 An apparatus for separation of a fluid flow, especially into a gas phase and a liquid phase |
| 01/04/2001 | WO2000031376A3 Method and system for accessing subterranean deposits from the surface |
| 01/03/2001 | EP1064452A1 Formation testing apparatus and method |
| 01/03/2001 | EP0920593A4 Pump |
| 01/03/2001 | CN1278893A Multi-well computerized control of fluid pumping |
| 01/02/2001 | US6168388 Dual pump system in which the discharge of a first pump is used to power a second pump |
| 01/02/2001 | US6168213 Connector and connection method |
| 01/02/2001 | US6168054 Oil recovery system and apparatus |
| 01/02/2001 | US6167968 Method and apparatus for radially drilling through well casing and formation |
| 01/02/2001 | US6167966 Toe-to-heel oil recovery process |
| 01/02/2001 | US6167965 Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores |
| 01/02/2001 | US6167960 Protection of downwell pumps from sand entrained in pumped fluids |
| 01/02/2001 | US6167957 Helical perforating gun |
| 01/02/2001 | US6167914 Orifice protector |
| 01/02/2001 | CA2172047C Method and apparatus for downhole activated wellbore completion |
| 12/29/2000 | CA2312258A1 Unique phasings and filing sequences for perforating guns |
| 12/28/2000 | WO2000079309A1 Method and installation for tapping fresh water and detecting fresh water source at sea |
| 12/28/2000 | WO2000079099A1 System for improving coalbed gas production |
| 12/28/2000 | WO2000079098A1 System and method for enhancing the recovery of fluids from a formation |
| 12/28/2000 | WO2000079097A1 Self-regulating lift fluid injection tool |
| 12/28/2000 | WO2000079096A1 Method for exploiting a gas-lift wellbore and device for realising the same |
| 12/28/2000 | WO2000079094A1 Variable downhole choke |
| 12/27/2000 | EP1062405A1 Extraction of fluids from wells |
| 12/27/2000 | EP1062404A1 Expendable tubing-conveyed perforator |
| 12/27/2000 | EP1062297A1 A method of improving the flow properties of a crude oil or natural gas liquid |
| 12/27/2000 | EP1038087A4 Assembly and process for drilling and completing multiple wells |
| 12/27/2000 | EP0857247A4 Assembly and process for drilling and completing multiple wells |
| 12/27/2000 | CN2412105Y Linear motor driven non-beam pumping unit |
| 12/27/2000 | CN2412091Y Constant flow clogger of water injection well |
| 12/27/2000 | CN2412090Y Prying-mounting hydraulic piston pump |
| 12/27/2000 | CN2412089Y Sand removing oil extracting appts. |
| 12/27/2000 | CN1278317A Drive head for rotary-driven rod assembly, especially for driving sand pump |
| 12/27/2000 | CN1278315A Method and apparatus for viscosity reduction of clogging hydrocarbons in oil well |
| 12/26/2000 | US6165948 Contacting rock in the natural gas well intake radius with aqueous dispersion including an organosilicon water repellent; antideposit agents |
| 12/26/2000 | US6164727 Method of mining a soluble mineral |
| 12/26/2000 | US6164493 Oil recovery method |
| 12/26/2000 | US6164379 Process for the enhanced recovery of petroleum oil |
| 12/26/2000 | US6164376 Triple action pumping system and method |
| 12/26/2000 | CA2216668C Telescoping joint for use in a conduit connected to a wellhead and zone isolating tool for use therewith |
| 12/26/2000 | CA2209686C Well pipe perforating gun |
| 12/26/2000 | CA2144014C Coiled well screen |
| 12/21/2000 | WO2000077502A2 Gamma ray density profile sensor with passively cooled pin photodiodes |
| 12/21/2000 | WO2000077431A2 Expandable connector |
| 12/21/2000 | WO2000077406A2 Method for compressing a hydrocarbon-containing gaseous medium |
| 12/21/2000 | WO2000077343A1 Apparatus and method for producing oil and gas |
| 12/21/2000 | WO2000077342A1 End fitting and method for attaching well screen segments |
| 12/21/2000 | WO2000077340A1 Huff and puff process utilizing nitrogen gas |
| 12/20/2000 | EP1060450A1 Method for measuring and controlling the flow of natural gas from gas wells |
| 12/20/2000 | EP1060326A1 Oilfield in situ hydrocarbon upgrading process |
| 12/20/2000 | CN2411357Y Oil well associated gas power beam-pumping unit |
| 12/20/2000 | CN2411340Y Deep well oil-reservoir heater |
| 12/20/2000 | CN1277311A Oil well viscosity reducing method |
| 12/20/2000 | CN1277239A Ternary composite reservoir oil displacing system comprising alkali, surfactant and polymer and its application |
| 12/19/2000 | US6162021 System for pumping liquids using a jet pump and a phase separator |
| 12/19/2000 | US6161621 Scrubber for an oil-only recovery apparatus |
| 12/19/2000 | US6161619 Riser system for sub-sea wells and method of operation |
| 12/19/2000 | CA2191955C Ball and seat valve assembly and downhole pump utilizing said valve assembly |
| 12/19/2000 | CA2015844C Method and device for joining well tubulars |
| 12/14/2000 | WO2000075510A2 A production system and method for producing fluids from a well |
| 12/14/2000 | WO2000075485A1 Method and system for oriented perforating in a well with permanent sensors |
| 12/14/2000 | WO2000075484A1 Apparatus and method for controlling fluid flow in a wellbore |
| 12/14/2000 | WO2000075477A1 Controlling pressure and detecting control problems in gas-lift riser during offshore well drilling |
| 12/14/2000 | WO2000075476A1 Method of creating a wellbore |
| 12/14/2000 | WO2000075261A1 Method for extracting oil from drilling mud and/or drilling mud fractions containing oil |
| 12/14/2000 | WO2000039031A9 Advanced treatment for produced water |
| 12/14/2000 | DE19927020A1 Buried drainage shaft and drivage uses free-holed telescoping shaft elements raised or lowered or axially turned to line up with house and drain line connections. |