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)
10/1996
10/16/1996CN1133432A Equipment for installing energy-collection explosive package on consumed bar type support frame
10/16/1996CN1133389A Artificial well-wall sand-proof technology for steam-injection thermal-recovery well of viscous crude oil
10/15/1996US5564503 Methods and systems for subterranean multilateral well drilling and completion
10/15/1996US5564502 Well completion system with flapper control valve
10/15/1996US5564499 Method and device for slotting well casing and scoring surrounding rock to facilitate hydraulic fractures
10/15/1996US5564456 Method for mitigating slugs in a pipeline
10/12/1996CA2166156A1 Method and apparatus for shock wave stimulation of an oil bearing formation
10/10/1996WO1996031271A1 Wire mesh filter
10/10/1996DE19512119A1 Device for draining hollow space surrounded mountain layers
10/09/1996EP0736666A2 Method and apparatus for determining the stress state and material properties
10/09/1996EP0735919A1 Solvent soaps and methods employing same
10/09/1996CN2237113Y Injection and production guider
10/09/1996CN2237112Y Electric heater for water injection well
10/09/1996CN1132820A Method and apparatus forintermittent production of oil with mechanical interface
10/08/1996US5562433 Pumping system comprising a high-capacity positive-displacement pump
10/08/1996US5562161 Method for accelerating production
10/08/1996US5562160 Fracturing fluid treatment design to optimize fluid rheology and proppant pack conductivity
10/08/1996US5562159 Well uplift system
10/03/1996WO1996030626A1 Water flow obstruction process
10/03/1996WO1996030625A1 Hydrocarbon production using multilateral well bores
10/03/1996WO1996021792A3 Riser assembly
10/03/1996CA2480707A1 Hydrocarbon production using multilateral well bores
10/03/1996CA2480703A1 Hydrocarbon production using multilateral well bores
10/02/1996EP0735303A1 Process for laying underground pipes between control chambers
10/02/1996EP0735236A1 Assembly and process for drilling and completing multiple wells
10/02/1996EP0735235A1 Control of particulate flowback in subterranean wells
10/02/1996EP0735234A2 Bisphenol-containing resin coating articles and methods of using same
10/02/1996CN2236543Y High specific capacity shellless high energy air crushing apparatus
10/01/1996US5560737 Pneumatic fracturing and multicomponent injection enhancement of in situ bioremediation
10/01/1996US5560427 Fracturing and propping a formation using a downhole slurry splitter
10/01/1996CA2145784C Plugging of underground strata to eliminate gas and water coning during oil production
10/01/1996CA2092051C Phaseable link carrier for explosive charge
09/1996
09/26/1996WO1996029532A1 Method for connecting underwater pipelines particularly suitable for great depths and big diameters
09/26/1996DE19532844C1 Supporting granulate for use in natural oil and gas drilling
09/26/1996CA2216108A1 Method for connecting underwater pipelines particularly suitable for great depths and big diameters
09/25/1996EP0733843A1 Method for connecting underwater pipelines particularly suitable for great depths and big diameters
09/25/1996EP0577706B1 A method for drying a subterranean cavern
09/25/1996CN2236015Y Sand-removing device of well-drilling liquid circulation pot
09/25/1996CN1032878C Digital-control supercritical beam-pumping unit
09/25/1996CN1032877C Energy-saving power device for sliding beam oil pump
09/24/1996US5559086 Epoxy resin composition and well treatment method
09/24/1996US5558161 Method for controlling fluid-loss and fracturing high permeability subterranean formations
09/24/1996US5558160 Nitrogen/carbon dioxide combination fracture treatment
09/19/1996WO1996028638A1 A method of in-situ gasification of coal
09/19/1996WO1996028637A1 A two-stage of method for gasificating undergrounds coal in situ
09/19/1996WO1996028636A1 High-rate multizone gravel pack system
09/18/1996EP0732479A2 Remotely adjustable valve and method for using same
09/17/1996US5555936 Scleroglucan gel applied to the oil industry
09/17/1996US5555934 Multiple well jet pump apparatus
09/17/1996CA2095473C Rotary drive assemblies
09/11/1996CN2235015Y Dual-purpose steel ring for oil production and gas injection
09/10/1996US5553976 Fluid riser between seabed and floating vessel
09/10/1996US5553974 Enhanced vapor extraction system and method of in-situ remediation of a contaminated soil zone
09/10/1996US5553672 Setting tool for a downhole tool
09/10/1996US5553669 Particulate separator for fluid production wells
09/07/1996CA2153202A1 Corrosion control well installations and tools for such installations
09/06/1996WO1996027070A1 Oil well treatment
09/06/1996CA2213698A1 Oil well treatment
09/04/1996EP0729543A1 Well tool
09/04/1996CN2234502Y Hydraulic pulse injection water nozzle
09/04/1996CN1130235A Oil/water separating method
09/03/1996US5551802 Tension leg platform and method of installation therefor
09/03/1996US5551520 Dual redundant detonating system for oil well perforators
09/03/1996US5551516 Viscoelastic surfactant based aqueous fluid systems using a quaternary ammonium halide thickener
09/03/1996US5551514 Sand control without requiring a gravel pack screen
09/03/1996US5551513 Oil wells, gravel pack coated with improved resin system
09/03/1996US5551512 Running tool
09/03/1996US5551510 For preventing backspin at high speeds of a torque transmitting device
09/03/1996US5551344 Method of affecting fluid flow in a subterranean formation
09/03/1996US5551242 Flameless nitrogen skid unit
08/1996
08/29/1996WO1996026350A1 Casing with a laterally extendable tubular member and method for sand control in wells
08/28/1996EP0728913A2 Apparatus for connecting sections of a perforating gun string
08/28/1996EP0728255A1 Control flask for polyphasic effluents and extraction assembly therefor
08/28/1996EP0728253A1 Cellulose injection system and method
08/28/1996EP0673466B1 Turbo-pump for conveying highly viscous substances
08/28/1996EP0588879B1 Drilling mud compositions
08/27/1996US5549164 Method and apparatus for production of subsea hydrocarbon formations
08/27/1996US5549160 Downhole progressing cavity pump rotor valve
08/27/1996CA2108349C Process and apparatus for the recovery of hydrocarbons from a hydrocarbon deposit
08/22/1996WO1996025583A1 Single trip open hole well completion system and method
08/22/1996WO1996025582A2 One trip cement and gravel pack system
08/21/1996EP0727008A1 Method for stimulation of liquid flow in a well
08/21/1996EP0606428B1 Drive system for turning a swivel
08/21/1996CN2233472Y Underground oil-pumping air pump for oil pumping well
08/21/1996CN1129277A Perforation and sand-proof treatment device for oil well
08/21/1996CN1129276A Perforation and fracturing device for oil well
08/21/1996CN1032601C Pole-type numerically-controlled oil-pumping machine
08/20/1996US5547311 Cathodic protection, leak detection, and thermal remediation system
08/20/1996US5547029 For communication between the surface of a well and a downhole well tool
08/20/1996US5547023 Sand control well completion methods for poorly consolidated formations
08/20/1996US5547022 Heavy oil well stimulation composition and process
08/20/1996US5547021 Method and apparatus for fluid production from a wellbore
08/20/1996US5547020 Corrosion control well installation
08/20/1996CA2089500C Method and apparatus for measuring steam density by neutron method
08/15/1996WO1996024752A2 Method and appartus for remote control of wellbore end devices
08/15/1996WO1996024751A1 An acoustic transmisson system
08/15/1996WO1996024750A1 Subsea flow enhancer
08/15/1996WO1996024749A1 Method and apparatus for the remote control and monitoring of production wells
08/15/1996WO1996024748A1 Production wells having permanent downhole formation evaluation sensors
08/15/1996WO1996024747A1 Downhole production well control system and method
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