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)
05/1995
05/17/1995EP0653548A2 Method of cutting a structural substrate with liquid-borne abrasives
05/17/1995EP0515513B1 Releasable hydraulic and/or electric connection for subsea equipment
05/17/1995CN2197484Y Suction pump for thick oil
05/17/1995CN2197457Y Sand filter for oil well
05/17/1995CN1102601A Pig system for sending and receiving pigs in a pipeline system
05/16/1995US5415744 Electroosmosis, positioning of electrodes
05/16/1995US5415231 Method for producing low permeability reservoirs using steam
05/16/1995US5415228 Fluid loss control additives for use with gravel pack placement fluids
05/16/1995US5415227 Method for well completions in horizontal wellbores in loosely consolidated formations
05/16/1995CA2135348A1 Method for completing a horizontal well
05/16/1995CA1335590C Anhydrous, crystalline sodium salt of 5-chloro-3-(2-thenoyl)-2-oxindole-1-carboxamide
05/13/1995CA2135565A1 Method of cutting high strength materials with water soluble abrasives
05/11/1995WO1995012747A1 Method and system for exploring for and extraction of raw materials, minerals or the like in soft ground
05/11/1995WO1995012746A1 Method for the recovery of coal bed methane
05/11/1995WO1995012745A1 Method for the recovery of coal bed methane
05/11/1995WO1995012744A1 Method for the recovery of coal bed methane
05/11/1995WO1995012743A1 Method for the recovery of coal bed methane with reduced inert gas fraction in produced gas
05/11/1995WO1995012742A1 Method for the recovery of coal bed methane
05/11/1995WO1995012740A1 Method for stimulation of liquid flow in a well
05/11/1995CA2175705A1 Method and system for exploring for and extraction of raw materials, minerals or the like in soft ground
05/11/1995CA2175586A1 Method for stimulation of liquid flow in a well
05/11/1995CA2119504A1 Apparatus for releasing perforating gun equipment from a well casing
05/10/1995EP0652351A1 Method of perforating a well
05/10/1995EP0651852A1 Gravel pack screen for well completions
05/10/1995CN1102454A Non-shell fracturing bullet
05/10/1995CN1028377C Handle beam-pumping unit with over-point load variable-pitch balance
05/09/1995US5413721 Backflush filter system for downhole pumps
05/09/1995US5413718 Use of added water to achieve 100% injection weight in geothermal operations
05/09/1995US5413180 One trip backwash/sand control system with extendable washpipe isolation
05/09/1995US5413179 System and method for monitoring fracture growth during hydraulic fracture treatment
05/09/1995US5413177 Recovering hydrocarbons from underground reservoirs
05/09/1995US5413176 Sand screen repair
05/09/1995US5413175 Stabilization and control of hot two phase flow in a well
05/09/1995US5413170 Spoolable coiled tubing completion system
05/09/1995US5413045 Detonation system
05/09/1995US5412944 Severe service extractor valve
05/09/1995CA2071351C Method and apparatus for in-situ heated annulus refining process
05/04/1995WO1995012052A1 Process for improving the efficiency of crude oil extraction and processing
05/04/1995DE4337192A1 In-situ process for the remediation of polluted soils
05/03/1995EP0651229A2 Firing system for a perforating gun including an exploding foil detonator
05/03/1995CN2196211Y Transmission mechanismf or reducing gear box
05/03/1995CN2196178Y Break-proof rod block for oil pump
05/02/1995US5411104 Coalbed methane drilling
05/02/1995US5411098 Apparatus for use in a well
05/02/1995US5411094 Imbibition process using a horizontal well for oil production from low permeability reservoirs
05/02/1995US5411093 Method of enhancing stimulation load fluid recovery
05/02/1995US5411091 Use of thin liquid spacer volumes to enhance hydraulic fracturing
05/02/1995US5411090 Method for isolating multiple gravel packed zones in wells
05/02/1995US5411089 Heat injection process
05/02/1995US5411088 Filter with gas separator for electric setting tool
05/02/1995US5411086 Diatomaceous earth reservoirs with fracturing with water mixtures
05/02/1995US5411085 Spoolable coiled tubing completion system
05/02/1995US5411084 Sand filter system for use in a well
05/02/1995US5411081 Spoolable flexible hydraulically set, straight pull release well packer
05/02/1995CA1335449C Drilling equipment
04/1995
04/27/1995WO1995011404A1 Well tool
04/27/1995DE4405298C1 Groundwater purification in the in-situ process with backwash
04/27/1995DE4335397A1 Method and device for regenerating contaminated soil
04/27/1995DE4332690A1 Process for regenerating and/or looking after wells, and apparatus for carrying out the process
04/26/1995EP0649352A1 Waste disposal in hydraulically fractured earth formations
04/26/1995CN2195616Y Eccentric water distributing device
04/26/1995CN2195385Y Shale shaker
04/25/1995US5410152 Low-noise method for performing downhole well logging using gamma ray spectroscopy to measure radioactive tracer penetration
04/25/1995US5409061 Gravel packing system with fracturing and diversion of fluid
04/22/1995CA2133897A1 Method to prevent steam channeling into a bottom zone
04/20/1995WO1995010689A1 Horizontal natural gas storage caverns and methods for producing same
04/20/1995CA2174092A1 Horizontal natural gas storage caverns and methods for producing same
04/20/1995CA2108723A1 In-situ bitumen recovery from oil sands
04/19/1995EP0648914A1 Device for influencing liquid present in the soil
04/18/1995US5407468 Process and a plant for the deoxidation of water
04/18/1995US5407010 In a method of producing gas
04/18/1995US5407009 A horizontal fructure is created below reservoir by hydraulic pressure, a mixture of low solubility gas and solvent is introduced into fracture to leach the heavy oil or bitumen to create a flow passage within the matrix above the fracture
04/18/1995CA2058108C Single well injection and production system
04/13/1995WO1995009970A1 Method and apparatus for separating a well stream
04/13/1995WO1995009969A1 Fluid activated detonating system
04/13/1995WO1995009968A1 Casing conveyed system for completing a wellbore
04/13/1995WO1995009967A1 Downhole activated process and apparatus for completing a wellbore
04/13/1995WO1995009966A1 Method and apparatus for downhole activated wellbore completion
04/13/1995WO1995009965A1 Casing conveyed flowports for borehole use
04/13/1995CA2172820A1 Method and apparatus for separating a well stream
04/13/1995CA2131595A1 Methods for conducting tubing-conveyed perforating operations in well bores
04/12/1995EP0647767A2 Methods for conducting tubing-conveyed perforating operations in well bores
04/12/1995EP0647766A2 Fluid pressure actuated apparatus for performing multiple well operations
04/12/1995EP0647765A2 Method of perforating a well using coiled tubing
04/11/1995US5406482 Method and apparatus for measuring pumping rod position and other aspects of a pumping system by use of an accelerometer
04/11/1995US5404954 Well screen for increased production
04/11/1995US5404943 Multiple pump assembly for wells
04/11/1995CA1335154C Oil recovery using co _flooding
04/09/1995CA2133818A1 Combined pressure testing and selective fired perforating systems
04/09/1995CA2133817A1 Methods of perforating a well using coiled tubing
04/06/1995WO1995009292A1 Use of added water to achieve 100 % injection weight in geothermal operations
04/05/1995EP0646695A1 Method of fracturing subsurface formations
04/05/1995EP0646213A1 Process and tool for laying underground collector mains for liquids and gases
04/05/1995CN2193921Y Casing gas recovery device for oil-pumping well
04/05/1995CN1101108A Apparatus and method for coupling elongated members
04/04/1995US5404061 Oil-filled motor protector
04/04/1995US5404010 Method of well logging in fractured subterranean formation
04/04/1995US5403491 Envelope of polypropylene with polymer within a cansiter; underground, to contain spilled or leaked gasoline
04/04/1995US5403121 Subsea pipeline expansion bends
04/04/1995US5402851 Horizontal drilling method for hydrocarbon recovery
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