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)
10/2003
10/30/2003CA2482278A1 Protective sleeve for threaded connections for expandable liner hanger
10/29/2003EP1357403A2 A method of generating electric power in a wellbore
10/29/2003EP1357402A2 A light actuated system for use in a wellbore
10/29/2003EP1357401A2 A system for controlling a downhole device in a wellbore
10/29/2003EP1097287B1 Floating spar for supporting production risers
10/29/2003EP0968353B1 Full bore gun system
10/29/2003CN2583510Y Smoke waste heat comprehensive utilization system for oil field steam boiler
10/29/2003CN2583359Y Brake assembly twin key channel of inside expanding type brake
10/29/2003CN2583358Y Variable-speed well pumping unit
10/29/2003CN2583356Y Layering high pressure adjustable waterflooding valve for oil field
10/29/2003CN1451844A Heat, electricity, CO2 and N2 united supply making method for oil field production
10/29/2003CN1451843A Method for increasing relative permeability of polymer injection well
10/29/2003CN1451842A Method for reducing starting pressure of low permeability oil field
10/29/2003CN1451841A Method for choice of right moment of step perforation and hole mending for polymer displaced production well
10/28/2003US6637524 Non-rotating sensor assembly for measurement-while-drilling applications
10/28/2003US6637515 Method and apparatus for reducing plunger seal wear on automatic casing swab lift systems
10/28/2003US6637514 Recovery of production fluids from an oil or gas well
10/28/2003US6637512 Pressure from the soap stick containment vessel is exhausted while the ball valve is opened to avoid the inhalation of well fluids into the containment vessel
10/28/2003US6637510 Wellbore mechanism for liquid and gas discharge
10/28/2003US6637509 Wellhead stuffing box support assembly
10/28/2003US6637508 Multi-shot tubing perforator
10/28/2003US6637507 Apparatus for continuously perforating in oil wells
10/23/2003WO2003087535A1 Subsea process assembly
10/23/2003WO2003087533A1 Apparatus and method for treating the borehole wall and expanding a screen
10/23/2003WO2003087531A1 Method to form a barrier in a reservoir with a magnetorheological fluid
10/23/2003WO2003087521A2 Gas operated automatic, liquid pumping system for wells
10/23/2003WO2003086976A2 Subsea well production facility
10/23/2003WO2003086675A2 Protective sleeve for threaded connections for expandable liner hanger
10/23/2003WO2003004819B1 Liner hanger
10/23/2003WO2002092963A3 A gas lift method with surfactant injection
10/23/2003US20030198562 Submersible pump assembly for removing a production inhibiting fluid from a well and method for use of same
10/23/2003US20030196952 Sand and particle separator for fluid pumping systems
10/23/2003US20030196818 Method and apparatus for one trip tubular expansion
10/23/2003US20030196817 Methods for increasing production from a wellbore
10/23/2003US20030196815 Method for operating a submersible pump
10/23/2003US20030196813 Method of treating and measuring various parameters in pipelines
10/23/2003US20030196812 Coiled tubing for insertion into coiled tubing
10/23/2003US20030196811 Method of treating and measuring various parameters in formations
10/23/2003US20030196810 Providing heat from heaters to formation; allowing the heat to transfer to selected section of the formation; controlling the heat from heaters; producing a mixture from the formation
10/23/2003US20030196806 Method and apparatus for perforating a well
10/23/2003US20030196805 Conductive proppant and method of hydraulic fracturing using the same
10/23/2003US20030196803 Well evacuator
10/23/2003US20030196802 Gas separating intake for progressing cavity pumps
10/23/2003US20030196801 In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
10/23/2003US20030196797 Coiled tubing having multiple strings of smaller tubing embedded therein
10/23/2003US20030196796 Expandable sand screen for use in a wellbore
10/23/2003US20030196793 Combined nitrogen treatment system and coiled tubing system in one tractor/trailer apparatus
10/23/2003US20030196789 In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment
10/23/2003US20030196788 Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
10/23/2003US20030196708 Multiport gate valve assembly for flow completion system
10/23/2003CA2481860A1 Method to form a barrier in a reservoir with a magnetorheological fluid
10/22/2003EP1355170A2 A method of controlling production from a wellbore
10/22/2003EP1355169A2 Method and apparatus for controlling chemical injection of a surface treatment system
10/22/2003EP1355168A2 A method for avoiding injection induced unintentional fracture growth
10/22/2003EP1355167A2 An injection well with a fibre optic cable to measure fluorescence of bacteria present
10/22/2003EP1355166A2 An injection evaluation system
10/22/2003EP1355038A1 Tracking of particulate flowback in subterranean wells
10/22/2003EP1354124A1 Method and system for enhanced access to a subterranean zone
10/22/2003EP0842347B9 Device and process for the lining of a pipe branch, particularly in an oil well
10/22/2003CN2581727Y Single pump double action oil pump
10/22/2003CN2581722Y Pressurized water injection pump
10/22/2003CN2581692Y Petroleum screen tube
10/22/2003CN2581691Y Intelligent beam-pumping unit driven by linear motor
10/22/2003CN2581690Y Special rear arm beam-pumping unit
10/22/2003CN2581689Y Double balance beam-pumping unit
10/22/2003CN2581686Y Locking device with two rows of steel balls
10/22/2003CN1451075A Method and apparatus for hydrocarbon subterranean recovery
10/22/2003CN1450248A Electric submerged screw oil-pumping machine
10/22/2003CN1450247A Rod free hydraulic oil pumping system
10/22/2003CN1125094C Heat-resistant salt-resistant thickening agent of copolymer
10/21/2003US6634431 Isolation of subterranean zones
10/21/2003US6634430 Method for installation of evacuated tubular conduits
10/21/2003US6634429 Upper zone isolation tool for intelligent well completions
10/16/2003WO2003085232A1 Use of dispersion polymers as friction reducers in aqueous fracturing fluids
10/16/2003WO2003036041A3 In situ recovery from a hydrocarbon containing formation using barriers
10/16/2003US20030192717 Sealed multilateral junction system
10/16/2003US20030192706 Method for installing a water well pump
10/16/2003US20030192705 Forming a wellbore casing while simultaneously drilling a wellbore
10/16/2003US20030192703 Flapper lock open apparatus
10/16/2003US20030192702 Gas-lock re-prime device for submersible pumps
10/16/2003US20030192699 Expandable float shoe and associated methods
10/16/2003US20030192697 Isolation container for a downhole electric pump
10/16/2003US20030192696 Full bore automatic gun release module
10/16/2003US20030192694 Crossover tool
10/16/2003US20030192693 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
10/16/2003US20030192692 Method and system for wireless communications for downhole applications
10/16/2003US20030192691 In situ recovery from a hydrocarbon containing formation using barriers
10/16/2003US20030192689 Fluid property sensors and associated methods of calibrating sensors in a subterranean well
10/15/2003EP1353038A1 Subsea process assembly
10/15/2003EP1352150A1 Well screen cover
10/15/2003EP0922155B1 Subsea module
10/15/2003CN2580497Y Remote distance terminal controller for water source well
10/15/2003CN2580300Y Waste heat recovering device for oil field thick oil heat production steam injection boiler
10/15/2003CN2580212Y Vacuum leak-proof device for speed reducing box
10/15/2003CN2580149Y Oil submersible screw pump
10/15/2003CN2580148Y Screw pump rotor capable of well flushing detection
10/15/2003CN2580145Y Self rotary plunger oil pump
10/15/2003CN2580144Y Long piston ring seal short tube oil pump
10/15/2003CN2580143Y Sealing and anchoring device for hot production rod pump
10/15/2003CN2580113Y Layered water injection underwell automatic reset two-way test seal section
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