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)
11/2003
11/18/2003CA2261256C Methods of protecting well tubular goods from corrosion
11/13/2003WO2003093643A2 Downhole fluid disposal apparatus and methods
11/13/2003WO2003093642A1 Subsea separator system
11/13/2003WO2003093640A1 Method and device for producing wave action on a production stratum
11/13/2003WO2003093639A1 Methods and apparatus for expanding tubulars
11/13/2003WO2003093638A2 Tubing anchor
11/13/2003WO2003093637A2 Tubing anchor
11/13/2003WO2003093636A1 Flying valve and well production method
11/13/2003WO2003093634A1 Cooling of hydrocarbons
11/13/2003WO2003093623A2 Mono diameter wellbore casing
11/13/2003WO2003036030A3 In situ thermal processing and upgrading of produced hydrocarbons
11/13/2003US20030209352 Method of screen or pipe expansion downhole without addition of pipe at the surface
11/13/2003US20030209348 Heating; recovering hydrocarbons, hydrogen
11/13/2003US20030209347 System and method for making an opening in a subsurface tubular for reservoir monitoring
11/13/2003US20030209340 Microorganism enhancement with earth loop heat exchange systems
11/13/2003CA2484966A1 Mono diameter wellbore casing
11/12/2003EP1361334A1 Method and apparatus for maintaining a fluid column in a wellbore annulus
11/12/2003EP1360418A1 Gas lift valve with central body ventury for controlling the flow of injection gas in oil wells producing by continuous gas lift
11/12/2003EP1360393A1 Downhole pump
11/12/2003EP1102915B1 Connector for expandable well screen
11/12/2003EP1092079B1 Process of preparing a gas composition and use thereof
11/12/2003EP0925423B1 Apparatus and method for perforating and stimulating a subterranean formation
11/12/2003CN2586010Y Rotary decelerator of sucker rod
11/12/2003CN2586002Y Connection bolt lock of motor of pumping unit
11/12/2003CN2585988Y Elastic dynamic antiscale and sand-proof tube
11/12/2003CN2585975Y Stratified steady and constant steam filler of oil well
11/12/2003CN2585974Y Balancer of pumping machine
11/12/2003CN2585973Y Hoisting sheave means of linear dynamo driven pumping machine
11/12/2003CN2585972Y Externally warped energy saving variable pumping machine
11/12/2003CN1127622C Cylindrical chain low type long-stroke pumping unit
11/12/2003CN1127611C Method of water replacing to product petroleum
11/11/2003US6645428 Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
11/11/2003US6644848 Pipeline monitoring systems
11/11/2003US6644844 Mobile blending apparatus
11/11/2003US6644412 Flow control apparatus for use in a wellbore
11/11/2003US6644407 Indirect hydraulic fracturing method for an unconsolidated subterranean zone and a method for restricting the production of finely divided particulates from the fractured unconsolidated zone
11/11/2003US6644406 Fracturing different levels within a completion interval of a well
11/11/2003US6644404 Method of progressively gravel packing a zone
11/11/2003US6644402 Method of installing a sensor in a well
11/11/2003US6644400 Backwash oil and gas production
11/11/2003US6644399 Water, oil and gas well recovery system
11/11/2003CA2403439C Method of pumping liquids from a well
11/08/2003CA2428008A1 Method and apparatus for maintaining a fluid column in a wellbore annulus
11/06/2003WO2003091539A2 Sand and particle separator for fluid pumping systems
11/06/2003WO2003091538A1 Method of producing hydrocarbon gas
11/06/2003WO2003091537A1 Expandable well screen
11/06/2003WO2003091536A1 Cylindrical well screen having longitudinal skid rods
11/06/2003WO2003091535A1 Sand screen having a multiple welded wedge-wire structure
11/06/2003WO2003091534A1 Method for recovering coal seam by non-combustion gasification at original location and method for recovering organic substance or fossil organic substance under ground by non-combustion gasification at original location
11/06/2003WO2003091133A1 Petroleum production utilizing a salt cavern
11/06/2003US20030206810 Method of compressing gaseous hydrocarbon-containing medium
11/06/2003US20030205522 System for producing de-watered oil
11/06/2003US20030205388 Tubing anchor
11/06/2003US20030205387 Tubing anchor
11/06/2003US20030205386 Methods and apparatus for expanding tubulars
11/06/2003US20030205384 Subsea riser separator system
11/06/2003US20030205379 Expanding wellbore junction
11/06/2003US20030205378 In situ recovery from lean and rich zones in a hydrocarbon containing formation
11/06/2003US20030205376 Means and Method for Assessing the Geometry of a Subterranean Fracture During or After a Hydraulic Fracturing Treatment
11/06/2003US20030205375 Treatment well tiltmeter system
11/06/2003US20030205083 Monitoring of downhole parameters and tools utilizing fiber optics
11/06/2003CA2483346A1 Sand and particle separator for fluid pumping systems
11/06/2003CA2483202A1 Method of producing hydrocarbon gas
11/05/2003EP1358395A1 Oil well perforator
11/05/2003EP1358394A1 Optimization of reservoir, well and surface network systems
11/05/2003EP1038087B1 Assembly and process for drilling and completing multiple wells
11/05/2003EP0840835B1 Improvements in deep well pumping apparatus
11/05/2003CN2584868Y Split extracting dual pump
11/05/2003CN2584867Y Double fluid dual pumping pump
11/05/2003CN2584826Y Gel high-pressure thermostat flow instrument
11/05/2003CN2584825Y Ecentric integral injection wall down-hole flow
11/05/2003CN2584824Y Adsorption double-action dropping apparatus
11/05/2003CN2584823Y High-precision sand filter pipe
11/05/2003CN2584822Y Oscillation balance device for beam pumping unit
11/05/2003CN2584821Y Centering oil foot carrying cleanup apparatus
11/05/2003CN2584820Y Arc rocker planetary speed reducer driven reducing runner type beam-pumping unit
11/05/2003CN2584819Y Multifunction fracture sand mixing truck
11/05/2003CN1127160C Generation of electrical energy from natural gas using a solid oxide fuel cell
11/04/2003US6640904 Sand removal and device retrieval tool
11/04/2003US6640903 Forming a wellbore casing while simultaneously drilling a wellbore
11/04/2003US6640901 Retrievable module and operating method suitable for a seabed processing system
11/04/2003US6640897 Method and apparatus for through tubing gravel packing, cleaning and lifting
11/04/2003US6640896 Mechanical oil recovery method and system with a sucker rod pump
11/04/2003US6640895 Expandable tubing joint and through-tubing multilateral completion method
11/04/2003US6640893 Wellbore packer
11/04/2003US6640892 Tubing string rotator
10/2003
10/30/2003WO2003090499A1 Method and apparatus for heating a submarine pipeline
10/30/2003WO2003089757A1 Means and method for assessing the geometry of a subterranean fracture during or after a hydraulic fracturing treatment
10/30/2003WO2003089756A1 Methods for increasing production from a wellbore
10/30/2003WO2003089755A1 Circulating sub
10/30/2003WO2003089753A2 Coiled tubing having multiple strings of smaller tubing embedded therein
10/30/2003WO2003089752A2 Well completion with merged influx of well fluids
10/30/2003WO2003089161A2 Protective sleeve for threaded connections for expandable liner hanger
10/30/2003WO2003029614A3 Tool and method for measuring properties of an earth formation surrounding a borehole
10/30/2003WO2003006780A3 Device and method for injecting fluids into a wellbore
10/30/2003WO2002068794A8 Downhole pump
10/30/2003US20030201104 Petroleum production utilizing a salt cavern
10/30/2003US20030201101 Method and apparatus for seismic stimulation of fluid-bearing formations
10/30/2003US20030201098 In situ recovery from a hydrocarbon containing formation using one or more simulations
10/30/2003CA2482818A1 Method and apparatus for heating a submarine pipeline
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