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)
03/2003
03/20/2003WO2003023178A2 Adjustable expansion cone assembly
03/20/2003WO2003022409A1 Downhole gas separation method and system
03/20/2003WO2003022408A1 High-pressure separation of a multi-component gas
03/20/2003WO2002076816A3 Seabed oil storage and tanker offtake system
03/20/2003WO2002032634B1 Fluid cutting tool and method for cutting tubular member with a jet of fluid
03/20/2003US20030051885 Tubing expansion
03/20/2003US20030051881 Electro-hydraulically pressurized downhole valve actuator
03/20/2003US20030051880 Method and apparatus for drilling a plurality of offshore underwater wells
03/20/2003US20030051876 Method and apparatus for stimulation of multiple formation intervals
03/20/2003US20030051874 Downhole membrane separation system with sweep gas
03/20/2003US20030051873 Waterflood control system for maximizing total oil recovery
03/20/2003US20030051872 In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
03/20/2003US20030051602 Gas carry-under monitoring and control system
03/20/2003CA2803812A1 Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells
03/20/2003CA2803771A1 Arrangement and method for regulating bottom hole pressures when drilling deepwater offshore wells
03/19/2003CN2540507Y Integral waterflooding device consisting of packer and eccentric injection well down-hole flow
03/19/2003CN2540506Y Tubularcolumn for perforating test technology
03/19/2003CN1403683A Water-replaced oil exploiting method
03/18/2003US6533039 Well completion method and apparatus with cable inside a tubing and gas venting through the tubing
03/18/2003US6533038 Method of achieving a preferential flow distribution in a horizontal well bore
03/18/2003US6533037 Flow-operated valve
03/18/2003US6533033 Pump protection system
03/18/2003CA2274875C Process for stablizing the gas flow in water-bearing natural gas fields and natural gas reservoirs
03/18/2003CA2234386C Method and apparatus for cementing a well
03/18/2003CA2210418C Method for fracturing and gravel-packing a well
03/13/2003WO2003021080A1 High pressure high temperature packer system and expansion assembly
03/13/2003WO2003021079A1 Method and device for the extraction and transport of gas hydrates and gases from gas hydrates
03/13/2003WO2003001019A3 Sleeve valve and method for providing a controllable fluid flow
03/13/2003WO2002066814A3 Regenerative combustion device
03/13/2003US20030050758 Well completion method, including integrated approach for fracture optimization
03/13/2003US20030048697 Power generation using batteries with reconfigurable discharge
03/13/2003US20030048695 Concentrating seismic energy in a selected target point in an underground formation
03/13/2003US20030048197 Sequential hydraulic control system for use in a subterranean well
03/13/2003US20030047880 Seal and method
03/13/2003US20030047622 Cavitating jet
03/13/2003US20030047588 Method of joining metal oilfield tubulars and well provided therewith
03/13/2003US20030047358 Charge tube assembly for a perforating gun
03/13/2003US20030047323 Expandable hanger and packer
03/13/2003US20030047322 An Expandable hanger and packer
03/13/2003US20030047321 Method for creating a polished bore receptacle
03/13/2003US20030047320 Method and apparatus for expandable liner hanger with bypass
03/13/2003US20030047316 Open well plunger-actuated gas lift valve and method of use
03/13/2003US20030047313 Drillable core perforating gun and method of utilizing the same
03/13/2003US20030047311 Remotely operated multi-zone packing system
03/13/2003US20030047310 Downhole gas separation method and system
03/13/2003US20030047309 Acid gas disposal method
03/13/2003US20030047308 Wireless downwhole measurement and control for optimizing gas lift well and field performance
03/12/2003EP1290780A2 Method for boosting the output voltage of a variable frequency drive
03/12/2003EP1290388A1 Method for producing, transporting, offloading, storing and distributing natural gas to a marketplace
03/12/2003EP1290311A1 Sequential hydraulic control system for use in subterranean well
03/12/2003EP1129271B1 Shearing arrangement for subsea umbilicals
03/12/2003EP0815347B1 Method for measuring of flow and flowmeter
03/12/2003EP0764235B1 Method for fracturing and propping a subterranean formation
03/12/2003CN2539850Y Oil-well pump
03/12/2003CN2539841Y High density fibre sand-proof pipe
03/12/2003CN2539840Y Multifunctional sand-proof tubular column
03/12/2003CN1402810A Production valve
03/12/2003CN1401879A Hydro-impact broken down method and device for oil-water well
03/12/2003CN1401797A Process for in-situ leaching ion type rareearth ore
03/12/2003CN1102953C Chemically induced stimulations of subterranean carbonaceous formations with aqueous oxidizing solutions
03/11/2003US6531694 Wellbores utilizing fiber optic-based sensors and operating devices
03/11/2003US6531516 Integrated bitumen production and gas conversion
03/11/2003US6530574 Method and apparatus for expansion sealing concentric tubular structures
03/11/2003US6530431 Screen jacket assembly connection and methods of using same
03/11/2003CA2220606C Method and apparatus for controlling a progressing cavity well pump
03/06/2003WO2003018959A1 Method and plant for increasing oil recovery by gas injection
03/06/2003WO2003018958A1 Method and plant for enhanced oil recovery and simultaneous synthesis of hydrocarbons from natural gas
03/06/2003WO2003018957A1 Expandable packer
03/06/2003WO2003004821A8 Soap stick launcher and method for launching soap sticks
03/06/2003WO2002023009A3 Multi layer screen for downhole use.
03/06/2003US20030044299 Fluid displacement apparatus and method
03/06/2003US20030042048 Down hole drilling assembly with independent jet pump
03/06/2003US20030042028 High pressure high temperature packer system
03/06/2003US20030042026 Controllable production well packer
03/06/2003US20030042023 Indirect hydraulic fracturing method for and unconsolidated subterranean zone and a method for restricting the production of finely divided particulates from the fractured unconsolidated zone
03/06/2003US20030042022 High pressure high temperature packer system, improved expansion assembly for a tubular expander tool, and method of tubular expansion
03/06/2003US20030042018 Method for improving oil recovery by delivering vibrational energy in a well fracture
03/06/2003US20030042017 Submersible well pumping system with an improved hydraulically actuated switching mechanism
03/06/2003US20030041723 Perforating gun firing head with vented block for holding detonator
03/05/2003EP1288434A1 Downhole drilling assembly with independent jet pump
03/05/2003EP1287230A2 Method and system for performing operations and for improving production in wells
03/05/2003CN2538976Y Oil-well pump
03/05/2003CN2538975Y Direct driving oil-well pump
03/05/2003CN2538974Y Oil well layered oil well pump
03/05/2003CN2538970Y Hydraulic transmission high-pressure injectant pump
03/05/2003CN2538960Y Oil field local well water injecting equipment
03/05/2003CN2538959Y In well layered water injection measurer
03/05/2003CN2538958Y Bar-dropping detonating auto-gun device for oil and gas well
03/05/2003CN2538957Y Magnetic sand filtering device in well
03/05/2003CN2538956Y Electric reciprocating beam-pumping unit
03/05/2003CN2538955Y Protective cover for beam-pumping unit
03/05/2003CN2538949Y Layered waterflooding packer
03/05/2003CN1102426C Process for rapidly preparing inertial gas in-situ
03/04/2003US6528157 Proppants with fiber reinforced resin coatings
03/04/2003US6527053 Arrangement related to riser pipelines
03/04/2003US6527052 Methods of downhole testing subterranean formations and associated apparatus therefor
03/04/2003US6527050 Method and apparatus for formation damage removal
03/04/2003US6527049 Apparatus and method for isolating a section of tubing
02/2003
02/27/2003WO2003016953A1 Downhole nmr processing
02/27/2003WO2003016676A1 Tertiary oil recovery combined with gas conversion process
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