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)
12/2005
12/29/2005US20050284643 Flow nozzle assembly
12/29/2005US20050284642 Valve apparatus with seal assembly
12/29/2005US20050284641 Controlled variable density fluid for wellbore operations
12/29/2005US20050284640 Nested velocity string tubing hanger
12/29/2005US20050284638 Method for inspection and repair of a flexible joint
12/29/2005US20050284637 Methods of treating subterranean formations using low-molecular-weight fluids
12/29/2005US20050284635 Firing head with detonation gas release activation
12/29/2005US20050284633 One trip well apparatus with sand control
12/29/2005US20050284632 Methods useful for controlling fluid loss during sand control operations
12/29/2005US20050284631 Lightweight composite particulates and methods of using such particulates in subterranean applications
12/29/2005US20050284628 Alkaline earth metal oxide or hydroxide; reduced or no tendency to precipitate, particularly at elevated temperatures; hydraulic fracturing
12/29/2005US20050284627 Flowshot technique
12/29/2005US20050284626 Flowshot technique
12/29/2005US20050284625 System and method for monitoring and removing blockage in a downhole oil and gas recovery operation
12/28/2005EP1609946A2 Flow nozzle assembly
12/28/2005EP1608845A2 A wellbore apparatus and method for completion, production and injection
12/28/2005EP1540137A4 System and mehtod for automating or metering fluid recovered at a well
12/28/2005EP1502002A4 Well completion with merged influx of well fluids
12/28/2005EP1485567A4 Mono-diameter wellbore casing
12/28/2005EP1381753B1 Electrical well heating system and method
12/28/2005EP1381752B1 In-situ combustion for oil recovery
12/28/2005EP1325211B1 Expandable lockout for a subsurface safety valve
12/28/2005EP1290311B1 Sequential hydraulic control system for use in subterranean well
12/28/2005EP1127210B1 Connector for an expandable tubing string
12/28/2005CN2748635Y Stopper for regulating down-hole water injection rate
12/28/2005CN2748634Y Oil-water bailing device for moveable cased well
12/28/2005CN2748633Y Hook load offset device for beam-pumping unit
12/28/2005CN2748632Y Oil well decompressor
12/28/2005CN1714226A Well treating process and system
12/27/2005US6980940 Intergrated reservoir optimization
12/27/2005US6978848 Method and apparatus for penetrating subsurface formations
12/27/2005US6978841 Sand removal and device retrieval tool
12/27/2005US6978840 Well screen assembly and system with controllable variable flow area and method of using same for oil well fluid production
12/27/2005US6978839 Internal connection of tree to wellhead housing
12/27/2005US6978838 Method for removing filter cake from injection wells
12/27/2005US6978837 Production of natural gas from hydrates
12/27/2005US6978832 Downhole sensing with fiber in the formation
12/27/2005US6978831 System and method for sensing data in a well during fracturing
12/27/2005US6978830 Downhole latch
12/27/2005CA2425573C Improved plunger lift separation and cycling
12/27/2005CA2403876C Internal gate valve for flow completion systems
12/27/2005CA2403866C Tubing hanger with annulus bore
12/27/2005CA2253685C Oil separation and pumping system and apparatus
12/27/2005CA2241223C Stuffing box gland
12/27/2005CA2190523C Method and device for producing by pumping in a horizontal drain hole
12/27/2005CA2185020C Method of producing a fluid from an earth formation
12/22/2005WO2005121507A1 System and method for determining pump underperformance
12/22/2005WO2005121504A1 Oilfield enhanced in situ combustion process
12/22/2005WO2005121273A1 Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants
12/22/2005US20050283277 Method and system for improving pump efficiency and productivity under power disturbance conditions
12/22/2005US20050281683 Gas separator fluid crossover for well pump
12/22/2005US20050281681 Method and system for improving pump efficiency and productivity under power disturbance conditions
12/22/2005US20050281680 Method and system for improving pump efficiency and productivity under power disturbance conditions
12/22/2005US20050279515 Profiled encapsulation for use with instrumented expandable tubular completions
12/22/2005US20050279514 Expandable downhole tubing
12/22/2005US20050279509 Method of installing a tubular assembly in a wellbore
12/22/2005US20050279505 System for recovering downhole oil and gas from economically nonviable wells
12/22/2005US20050279503 Slickline power control interface
12/22/2005US20050279501 System and method for fracturing and gravel packing a borehole
12/22/2005US20050279500 Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation
12/22/2005US20050279499 Downhole sampling tool and method for using same
12/22/2005US20050279496 Apparatus and Method to Detect Actuation of a Flow Control Device
12/22/2005US20050279493 Fluid well pumping system
12/22/2005CA2568593A1 Method and apparatus for performing chemical treatments of exposed geological formations
12/22/2005CA2565171A1 Aqueous tackifier and methods of controlling particulates
12/21/2005EP1607572A1 Particulate slurry for downhole use
12/21/2005EP1606526A2 Method for preventing critical annular pressure buildup
12/21/2005EP1606492A1 A system and process for pumping multiphase fluids
12/21/2005EP1606491A1 Casing conveyed well perforating apparatus and method
12/21/2005EP1606490A1 Device for heating and thermally insulating at least one undersea pipeline
12/21/2005EP1606160A2 Device and method for stabilising and controlling the lowering or raising of a heavy structure between the surface and the bed of the sea
12/21/2005EP1606159A2 Method and device for stabilizing and controlling lowering or raising of a structure between the surface and the sea floor
12/21/2005EP1523606B1 Method for completing injection wells
12/21/2005EP1295011B1 Apparatus and method to complete a multilateral junction
12/21/2005EP1276958B1 Electrical well heating system and method
12/21/2005EP1276957B1 Electrical well heating system and method
12/21/2005EP1266121B1 Methods for improving oil production
12/21/2005EP1200708B1 Apparatus for optimizing production of multi-phase fluid
12/21/2005CN2747355Y Drill for well wall
12/21/2005CN1710248A Oil-pumping workover rig
12/20/2005US6978211 Methods and systems for using wavelet analysis in subterranean applications
12/20/2005US6977499 Formation-based interpretation of NMR data for carbonate reservoirs
12/20/2005US6977367 Providing a light cell in a wellbore
12/20/2005US6976542 Mud flow back valve
12/20/2005US6976541 Liner hanger with sliding sleeve valve
12/20/2005US6976539 Tubing anchor
12/20/2005US6976536 Tubing expansion
12/20/2005US6976533 Method and system for accessing subterranean deposits from the surface
12/20/2005CA2361026C System for separately producing water and oil from a reservoir
12/20/2005CA2357034C Gravel pack expanding valve
12/20/2005CA2332893C Automatic hydrocarbon production management system
12/20/2005CA2162741C Single horizontal wellbore gravity drainage assisted steam flood process and apparatus
12/20/2005CA2142114C Multi-lateral selective re-entry tool
12/20/2005CA2137565C Method of completing an uncased section of a borehole
12/18/2005CA2510240A1 Apparatus and method for agitating reservoir while pumping
12/15/2005WO2005119885A1 A frameless switched reluctance motor and application as a top drive for a rotary pump
12/15/2005WO2005119008A1 Methods of treating subterranean formations using low-molecular-weight fluids
12/15/2005WO2005119007A1 Desalination method
12/15/2005WO2005119006A1 Method and apparatus for aligning rotor in stator of a rod driven well pump
12/15/2005WO2005119005A1 Method for development of a bottom-water hydrocarbon field and for hydrocarbon extraction by means of a bottom-hole separate reception geared pump
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