Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
09/1998
09/17/1998WO1998040605A1 Combination production of shallow heavy crude
09/17/1998WO1998040604A1 Full bore gun system
09/17/1998WO1998040603A2 Apparatus and methods for generating energy utilizing downhole processed fuel
09/16/1998EP0864726A2 Stimulating wells in unconsolidated formations
09/16/1998EP0864032A1 Method of treating an underground formation
09/16/1998EP0706471B1 System for offshore production of hydrocarbons
09/16/1998CN2291500Y Steerable wheel for beam-pumping unit
09/15/1998US5809415 Method and architecture for an interactive two-way data communication network
09/15/1998US5808192 Arrangement for acquiring downhole information
09/15/1998US5807082 Automatic downhole pump assembly and method for operating the same
09/15/1998US5807029 Offshore construction and vessel
09/15/1998US5807027 Connection system for subsea pipelines
09/15/1998US5806599 Method for accelerating production
09/15/1998US5806598 Apparatus and method for removing fluids from underground wells
09/15/1998CA2123075C Method and apparatus for producing and drilling a well
09/13/1998CA2232051A1 Stimulating wells in unconsolidated formations
09/13/1998CA2232044A1 Sand agitator tool
09/12/1998CA2231662A1 Coupled downhole pump for simultaneous injection and production in an oil well
09/11/1998WO1998039590A1 Coupling system for subsea pipelines and method for establishing such system
09/11/1998WO1998039550A1 Structure for the production of oil and/or gas at sea
09/11/1998WO1998039076A1 Process and device for recovering and treating of aqueous solutions
09/09/1998EP0862681A2 Downhole apparatus and method for expanding a tubing
09/08/1998USRE35891 Dehydrating clay lattices, vaporizing any blocked water and/or destruction of clay structure
09/08/1998US5804714 Flow meter
09/08/1998US5803666 Support system for supporting a horizontal bore hole
09/08/1998US5803179 Screened well drainage pipe structure with sealed, variable length labyrinth inlet flow control apparatus
09/08/1998US5803178 For recovering formation fluids from subsurface zones
09/08/1998US5803177 Well treatment fluid placement tool and methods
09/08/1998US5803175 Perforating gun connection and method of connecting for live well deployment
09/08/1998US5803174 Groundwater well with reactive filter pack
09/08/1998US5803171 Modified continuous drive drainage process
09/08/1998US5803167 Computer controlled downhole tools for production well control
09/03/1998WO1998038470A1 Well boring with blasting agents
09/03/1998DE19807386A1 Sprengperforationsvorrichtung für Bohrlöcher Sprengperforationsvorrichtung for wells
09/03/1998CA2282324A1 Well boring with blasting agents
09/01/1998US5799734 Method of forming and using particulate slurries for well completion
09/01/1998US5799733 Method of servicing a well
09/01/1998US5799732 Small hole retrievable perforating system for use during extreme overbalanced perforating
09/01/1998CA2129835C Template and process for drillng and completing multiple wells
08/1998
08/27/1998WO1998037307A1 Apparatus for controlling and monitoring a downhole oil/water separator
08/27/1998WO1998037306A1 Enhanced lift method and apparatus for the production of hydrocarbons
08/27/1998WO1998021444A3 Apparatus and method for expanding a liner patch; a stroke indicator; and a tubular patch
08/27/1998CA2281809A1 Apparatus for controlling and monitoring a downhole oil/water separator
08/26/1998EP0859903A2 Downhole setting tool for an expandable tubing
08/26/1998EP0859902A2 Deformable well screen and method for its installation
08/26/1998EP0749517B1 Method of producing a fluid from an earth formation
08/26/1998CN1191586A Apparatus and process for drilling and completing multiple wells
08/25/1998US5797464 Used to complete wells
08/25/1998US5797452 Double-acting, deep-well fluid extraction pump
08/20/1998WO1998036200A1 Tool for intercoupling of two subsea pipelines
08/20/1998WO1998036155A1 Apparatus and methods for downhole fluid separation and control of water production
08/20/1998WO1998036154A1 Contaminant remediation method and system
08/20/1998WO1998036153A1 Support of a number of parallel pipelines/hoses/cables etc. between a surface vessel and a point on the seabed
08/20/1998CA2280813A1 Apparatus and methods for downhole fluid separation and control of water production
08/19/1998EP0859126A2 Method and apparatus for loading fluid into subterranean formations
08/19/1998EP0859125A1 Control of particulate flowback in subterranean wells
08/19/1998EP0859123A2 Method and apparatus for completing wells with lateral branches
08/19/1998EP0859121A2 Method and apparatus for completing wells with lateral branches
08/19/1998EP0859120A2 Method and apparatus for completing wells with lateral branches
08/19/1998EP0859119A2 Template and process for drilling and completing multiple wells
08/19/1998EP0858549A1 Deep well filters
08/19/1998EP0858548A1 Inflow regulation device for a production pipe for production of oil or gas from an oil- and/or gas reservoir
08/19/1998CN2288266Y Movable oil pumping vehicle
08/19/1998CN1190692A Technology for producing oil by injecting solvent vapour throughput
08/19/1998CN1190691A Techology for exploitation of special oil by using chemical liquid throughput
08/19/1998CN1190690A Nozzle of pipe jetting device on jet well and installation method thereof
08/18/1998US5795474 Method and apparatus for the separation of hazardous waste from groundwater
08/18/1998US5795135 Sub-sea pumping system and an associated method including pressure compensating arrangement for cooling and lubricating fluid
08/18/1998US5795075 Spring cartridge rotor bearing
08/18/1998US5794702 Method for casing a wellbore
08/18/1998US5794701 Subsea connection
08/18/1998US5794698 Use of oleophilic wick for removing non-aqueous liquids from a subterranean formation
08/18/1998US5794697 Method for increasing oil production from an oil well producing a mixture of oil and gas
08/18/1998US5794695 Method and apparatus for gathering and preparing liquid samples for analysis
08/18/1998US5794694 Running tool
08/14/1998CA2197629A1 Oil well gas separator
08/13/1998WO1998035132A1 Prepacked flush joint well screen
08/13/1998WO1998035131A2 Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof
08/13/1998CA2507746A1 Methods of completing a subterranean well and associated apparatus
08/13/1998CA2280916A1 Prepacked flush joint well screen
08/13/1998CA2229104A1 Methods of completing a subterranean well and associated apparatus
08/12/1998EP0857248A1 Completion assembly for wellbores
08/12/1998EP0857247A1 Assembly and process for drilling and completing multiple wells
08/12/1998CN2287673Y Surge wave pressure deblocking device for oil field injection well
08/12/1998CN2287672Y Power recovery hydraulic well pumping unit for offshore oil production
08/11/1998US5791417 Tubular window formation
08/11/1998US5791415 Injecting hardenable resin into portion of formation, creating fracture, depoisting hardenable resin coated proppant in fracture and hardening; prevents migration of formation sand with fluids
08/11/1998CA2013469C Gellable buffered aqueous composition and its use in enhanced petroleum recovery
08/11/1998CA2013468C Method and composition for reducing the permeability of a high-permeability zone in an oil reservoir
08/06/1998WO1998034009A1 Installation for pumping a two-phase liquid/gas effluent
08/06/1998CA2196959A1 Method of downhole separation of natural gas from brine with injection of spent brine into a disposal formation
08/05/1998EP0698136B1 Preform or matrix tubular structure for well casing
08/05/1998EP0558534B1 Well completion system
08/04/1998US5789694 Breaking up of rock and the like
08/04/1998US5788781 Contacting with mixture of surfactants having specified hydrophilic-lipophilic balance in nonpolar diluent oil, rinsing with water
08/04/1998US5788421 Hectorite slurry
08/04/1998US5787987 Lateral seal and control system
08/04/1998US5787986 Control of particulate flowback in subterranean wells
08/04/1998US5787985 Proppant containment apparatus and methods of using same
08/04/1998US5787984 Method and device for casing a well with a composite pipe
1 ... 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 ... 642