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)
11/2005
11/17/2005US20050252286 Method and system for reservoir characterization in connection with drilling operations
11/17/2005US20050251982 Installation tool for oil and grease seals
11/17/2005DE10031663B4 Filterrohr für einen Einsatz in geschlossener Bauweise sowie dessen Verwendung zur Herstellung einer Filterstrecke mittels einer Vortriebsmaschine im Rohrvortrieb Filter pipe for use in closed construction and its use for the preparation of a filter section using a tunneling machine in pipe jacking
11/16/2005EP1387037A4 Hydromechanical well perforator
11/16/2005EP1234094B1 Creating multiple fractures in an earth formation
11/16/2005EP0852653B1 Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means
11/16/2005CN2740777Y Layered fracturing tubular column
11/16/2005CN2740776Y Pressure releaser of oil extracting and water filtering system for oil field
11/16/2005CN2740775Y Pumping well repairing unit
11/15/2005US6964305 Cup seal expansion tool
11/15/2005US6964300 In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
11/15/2005US6964299 Submersible pumping system
11/15/2005US6964298 Method and system for accessing subterranean deposits from the surface
11/15/2005CA2330969C System and process for secondary hydrocarbon recovery
11/15/2005CA2307538C Hanging liners by pipe expansion
11/15/2005CA2210668C Method and related apparatus for retrieving a rotary pump from a wellbore
11/15/2005CA2158291C Method for multi-lateral completion and cementing the juncture with lateral wellbores
11/15/2005CA2140236C Liner tie-back sleeve
11/15/2005CA2140235C Parallel seal assembly
11/12/2005CA2811046A1 Method and system for reservoir characterization in connection with drilling operations
11/12/2005CA2506991A1 Method and system for reservoir characterization in connection with drilling operations
11/10/2005WO2005106309A1 Expandable tubular connection
11/10/2005WO2005106199A1 Downhole separator system and method
11/10/2005WO2005106198A1 Method of treating oil and gas wells
11/10/2005WO2005106197A1 Gelled invert emulsion compositions and methods of use and manufacture
11/10/2005WO2005106196A1 Temperature limited heaters used to heat subsurface formations
11/10/2005WO2005106195A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
11/10/2005WO2005106194A1 Reducing viscosity of oil for production from a hydrocarbon containing formation
11/10/2005WO2005106193A1 Temperature limited heaters used to heat subsurface formations
11/10/2005WO2005106192A1 Method for displacing petroleum from a carbonate rock
11/10/2005WO2005106191A1 Inhibiting reflux in a heated well of an in situ conversion system
11/10/2005WO2005106190A2 Method and system for determining hydrocarbon properties
11/10/2005WO2005106131A1 Top tensioned riser
11/10/2005WO2004092528A3 Apparatus for radially expanding and plastically deforming a tubular member
11/10/2005WO2002061232A3 Thru-tubing stackable perforating gun system and method for use
11/10/2005US20050251362 System and method for determining pump underperformance
11/10/2005US20050250860 Method and systrem for combating the formation of emulsions
11/10/2005US20050250652 Gelled invert emulsion compositions and methods of use and manufacture
11/10/2005US20050249614 Pump for evacuation of viscous liquids
11/10/2005US20050249613 Apparatus and method
11/10/2005US20050247485 Combined casing expansion/casing while drilling method and apparatus
11/10/2005US20050247457 Method and apparatus for manufacturing an expandable slotted tube
11/10/2005US20050247453 Magnetic impulse applied sleeve method of forming a wellbore casing
11/10/2005US20050247451 Method and apparatus for completing lateral channels from an existing oil or gas well
11/10/2005US20050247450 Flame and Heat Resistant Oilfield Tools
11/10/2005US20050247449 Surge chamber assembly and method for perforating in dynamic underbalanced conditions
11/10/2005US20050247447 Angled perforating device for well completions
11/10/2005CA2819998A1 Expandable tubular connection
11/10/2005CA2752209A1 Expandable tubular connection
11/10/2005CA2564653A1 Method and system for determining hydrocarbon properties
11/10/2005CA2564515A1 Temperature limited heaters used to heat subsurface formations
11/10/2005CA2563592A1 Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
11/10/2005CA2563585A1 Reducing viscosity of oil for production from a hydrocarbon containing formation
11/10/2005CA2563583A1 Temperature limited heaters used to heat subsurface formations
11/10/2005CA2562461A1 Method of treating oil and gas wells
11/09/2005EP1516103B1 Multi-point high pressure seal for expandable tubular connections
11/09/2005EP1490579A4 Apparatus and method to expand casing
11/09/2005EP1451436A4 Acid gas disposal method
11/09/2005EP1131535B1 Method and system for accessing subterranean deposits from the surface
11/09/2005CN2739358Y High-energy fracturing device for oil-transfer pipe construction
11/09/2005CN2739357Y Oil well automatic charging device
11/09/2005CN2739356Y Perforator sandwich gun
11/09/2005CN2739355Y Eccentric energy-saving oil-pumping unit
11/09/2005CN1694996A Method and system for removing fluid from a subterranean zone using an enlarged cavity
11/09/2005CN1693657A Low carbon organic composite acid deblocking agent and its preparation method
11/09/2005CN1693656A Preparation method of low temperature stratum self generating gas deblocking agent and deblocking technology
11/09/2005CN1693655A Oil pumping machine
11/09/2005CN1693654A Gas pressure relief method of ground drilling extraction minery and goaf
11/08/2005US6963817 Systems for acquiring data from a facility and method
11/08/2005US6962654 Methods and apparatus for supplying high concentrations of dissolved oxygen and ozone for chemical and biological processes
11/08/2005US6962204 Isolation container for a downhole electric pump
11/08/2005US6962203 One trip completion process
11/08/2005US6962202 Casing conveyed well perforating apparatus and method
11/08/2005US6962200 Methods and compositions for consolidating proppant in subterranean fractures
11/08/2005US6962199 supersonic inertia separator as part of wellhead assembly; application of shock wave; efficient separation of particles
11/08/2005CA2328115C Well-bottom gas separator
11/08/2005CA2215714C Well screen
11/08/2005CA2215072C Hydrocarbon gels useful in formation fracturing
11/03/2005WO2005103501A1 Ejector multifunctional formation tester for horizontal wells and operation method thereof
11/03/2005WO2005103500A1 Method for operating a formation and device for carrying out said method tester
11/03/2005WO2005103447A1 Improvements in and relating to well head separators
11/03/2005WO2005103446A1 Tagged propping agents and related methods
11/03/2005WO2005103445A1 Subsurface electrical heaters using nitride insulation
11/03/2005WO2005103444A1 Inhibiting effects of sloughing in wellbores
11/03/2005WO2005103443A1 A method and a device for regulating a fluid flow between an outside and an inside of a well pipe
11/03/2005WO2005103440A2 Deploying an assembly into a well
11/03/2005WO2005048664B1 High temperature circuits
11/03/2005WO2005012684A3 Compositions and methods for treating subterranean formations
11/03/2005US20050245401 Propped fracture with high effective surface area
11/03/2005US20050241855 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
11/03/2005US20050241835 Self-activating downhole tool
11/03/2005US20050241834 Tubing/casing connection for U-tube wells
11/03/2005US20050241831 Anchor for branch wellbore liner
11/03/2005US20050241830 Uncollapsed expandable wellbore junction
11/03/2005US20050241826 Downhole separator system and method
11/03/2005US20050241825 Downhole tool with navigation system
11/03/2005US20050241824 Methods of servicing a well bore using self-activating downhole tool
11/03/2005US20050241823 Modular drill system requiring limited field assembly and limited equipment support
11/03/2005US20050241819 Variable orifice bypass plunger
11/03/2005US20050241709 Expandable Devices and Method
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