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)
11/2002
11/19/2002US6481499 Well-bottom gas separator
11/19/2002US6481494 Method and apparatus for frac/gravel packs
11/19/2002CA2229672C Apparatus and method for loading fluid into subterranean formations
11/19/2002CA2208613C Flow restriction device for use in producing wells
11/19/2002CA2141112C Olefin based frac fluid
11/19/2002CA2117086C Downhole activated process and apparatus for centralizing pipe in a wellbore
11/19/2002CA2084113C Single horizontal well conduction assisted steam drive process for removing viscous hydrocarbonaceous fluids
11/19/2002CA2076641C Stabilized suspension and its use for the recovery of hydrocarbons
11/18/2002CA2386424A1 Method of controlling proppant flowback in a well
11/16/2002CA2384612A1 Improved enhanced oil recovery
11/14/2002WO2002090714A1 Arrangement for and method of restricting the inflow of formation water to a well
11/14/2002WO2002090713A1 Apparatus for and method of radial expansion of a tubular member
11/14/2002WO2002090712A1 Apparatus and method for utilising expandable sand screen in wellbores
11/14/2002WO2002090711A2 Combined perforation and cement retainer tool for plugging a wellbore
11/14/2002US20020166729 Hydrate reducing and lubrication system and method for a fluid flow system
11/14/2002US20020166671 Tube manufacture
11/14/2002US20020166668 Tubing anchor
11/14/2002US20020166664 Expansion assembly for a tubular expander tool, and method of tubular expansion
11/14/2002US20020166662 Apparatus for extracting oil or other fluids from a well
11/14/2002US20020166661 Methods and apparatus for completing wells in unconsolidated subterranean zones
11/13/2002EP1255911A1 A device for and method of separating gas and liquid in a wellstream
11/13/2002EP1009909B1 Installing a scrolled resilient sheet alongside the inner surface of a fluid conduit
11/13/2002EP0993332B1 Process for generating power including a combustion process
11/12/2002US6478092 Well completion method and apparatus
11/12/2002US6478091 Expandable liner and associated methods of regulating fluid flow in a well
11/12/2002US6478085 System for accessing subterranean deposits from the surface
11/07/2002WO2002088521A1 Well provided with flexible production tubing
11/07/2002WO2002088519A1 Wellhead product testing system
11/07/2002WO2002088518A1 Crude oil recovery system
11/07/2002WO2002088513A1 Flow control apparatus for use in a wellbore
11/07/2002WO2002088510A1 Drilling system with expandable sleeve
11/07/2002WO2002088509A1 Offshore floating production method
11/07/2002WO2002025050A3 Downhole machining of well completion equipment
11/07/2002US20020165671 Method for enhancing production allocation in an integrated reservoir and surface flow system
11/07/2002US20020163192 Tubular threaded joint capable of being subjected to diametral expansion
11/07/2002US20020162664 Apparatus and methods for utilizing expandable sand screen in wellbores
11/07/2002US20020162662 System for lifting water from gas wells using a propellant
11/07/2002US20020162660 Straddle packer systems
11/07/2002US20020162657 Method and apparatus for plugging a wellbore
11/07/2002US20020162596 Bore-lining tubing
11/07/2002US20020162474 Shaped-charge liner
11/07/2002CA2445752A1 Well provided with flexible production tubing
11/06/2002EP1222360A4 Tool assembly and monitoring applications using same
11/06/2002CN1378666A Method and system for simulating hydrocarbon-bearing formation
11/06/2002CN1378615A Method and apparatus for seismic stimulation of fluid-bearing formations
11/06/2002CN1378034A Energy saving method for oil pumping unit in oil field
11/04/2002EP1214499A4 Well management system
11/04/2002EP1068426A4 Apparatus and method for stimulating a subterranean formation
10/2002
10/31/2002WO2002086374A1 Three dimensional pipe coil
10/31/2002WO2002086287A2 Conveying instrumentation within a borehole
10/31/2002WO2002086286A2 Method of and apparatus for casing a borehole
10/31/2002WO2002086285A1 Apparatus and methods for radially expanding a tubular member
10/31/2002WO2002086284A1 Electrical well heating system and method
10/31/2002WO2002086283A1 In-situ combustion for oil recovery
10/31/2002WO2002086277A2 Method for enhancing production allocation in an integrated reservoir and surface flow system
10/31/2002WO2002086276A2 Method for in situ recovery from a tar sands formation and a blending agent produced by such a method
10/31/2002WO2002086029A2 In situ recovery from a relatively low permeability formation containing heavy hydrocarbons
10/31/2002WO2002086018A2 In situ recovery from a oil shale formation
10/31/2002WO2002085821A2 In situ recovery from a relatively permeable formation containing heavy hydrocarbons
10/31/2002WO2002068792B1 Mono-diameter wellbore casing
10/31/2002US20020161087 Hydraulic fracturing fluid comprising a block copolymer containing at least one water-soluble block and one hydrophobic block
10/31/2002US20020157866 Method and apparatus for drilling an offshore underwater well
10/31/2002US20020157837 Flow control apparatus for use in a wellbore
10/31/2002US20020157836 Apparatus and methods for use in a wellbore
10/31/2002US20020157833 Offshore floating production method
10/31/2002US20020157831 Method and packer for processing a productive formation in bottom-hole zone of a well, and method for fixing a packer inside a well
10/31/2002US20020157830 Downhole tool
10/31/2002US20020157829 Complete trip system
10/31/2002US20020157826 Method and apparatus for completing a wellbore
10/31/2002US20020157824 Downhole tool
10/31/2002US20020157822 Crude oil recovery system
10/31/2002US20020157305 Method of improving the flow properties of a crude oil or natural gas liquid
10/31/2002CA2442596A1 Method for enhancing production allocation in an integrated reservoir and surface flow system
10/30/2002EP1252939A2 Method and device for improved management of waste dumps
10/30/2002EP1252416A1 Choke inductor for wireless communication and control in a well
10/30/2002CN2519036Y Soft friction cylindrical oil-well pump
10/30/2002CN2519019Y Hydraulic integrated machine for thermal recovery of heavy oil
10/30/2002CN2519018Y Chemical feeder for oil and gas well
10/30/2002CN2519017Y Bottom plug of plug
10/30/2002CN1376863A Dual-, tri-, or multi-functional suction valve hood of oil-well pump
10/29/2002US6470980 Self-excited drill bit sub
10/29/2002US6470978 Fluid drilling system with drill string and retro jets
10/29/2002US6470973 Side element of a drilling template
10/29/2002US6470966 Apparatus for forming wellbore casing
10/29/2002CA2330968C System and process for optimizing gravity gradiometer measurements
10/29/2002CA2054782C Enhanced response device for non-flowing deviated wells
10/29/2002CA2054781C Method and device for strenghtening a formation drilled through by a deviated well
10/24/2002WO2002084076A1 Oil and gas production with downhole separation and reinjection of gas
10/24/2002WO2002084074A1 Hydromechanical well perforator
10/24/2002WO2002084073A2 Pressure wave expansion tool
10/24/2002WO2002084071A1 Method and apparatus for controlling downhole flow
10/24/2002US20020154572 Subsea communication system and technique
10/24/2002US20020153888 Downhole NMR processing
10/24/2002US20020153326 For down-hole separation of multi-phase fluids produced by an oil well
10/24/2002US20020153141 Method for pumping fluids
10/24/2002US20020153140 Device for eliminating gas or paraffin hydrate deposits that form in well drilling equipment or in hydrocarbon production or transportation equipment
10/24/2002US20020153137 Method of optimizing the design, stimulation and evaluation of matrix treatment in a reservoir
10/23/2002EP1250514A1 Downhole wireless two-way telemetry system
10/23/2002EP1250513A1 System and method for fluid flow optimization in a gas-lift oil well
10/23/2002CN2517892Y Air-liquid mixed pump deep well pump
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