Patents
Patents for E21B 49 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells (11,875)
08/2012
08/16/2012WO2012087898A3 Wettability analysis of disaggregated material
08/16/2012WO2012058579A3 In-situ downhole x-ray core analysis system
08/16/2012WO2012050725A3 Sourceless downhole x-ray tool
08/16/2012WO2012027630A3 Apparatus and method for microresistivity imaging in nonconductive drilling fluid
08/16/2012CA2826888A1 System and apparatus for modeling the behavior of a drilling assembly
08/16/2012CA2824896A1 Method and arrangement to establish during down-the-hole drilling communication between the cavity of the drill string and the surrounding material
08/15/2012EP2486237A2 Formation testing
08/15/2012EP2486236A2 Managing flow testing and the results thereof for hydrocarbon wells
08/15/2012EP2486235A2 Automated sidewall coring
08/15/2012EP2486233A2 Formation testing planning and monitoring
08/15/2012EP2486231A2 Cooling apparatus and methods for use with downhole tools
08/15/2012EP2486228A2 Method and apparatus for drilling a probabilistic approach
08/15/2012CN202384087U Cable for stratum detector
08/15/2012CN202382976U Light-weight portable unpowered oxygen separation sampler
08/15/2012CN202381090U Impact-type underground sampling device
08/15/2012CN202381089U Casing-type horizontal well production profile collection umbrella
08/15/2012CN202381088U Nitrogenization needle valve
08/15/2012CN202381087U Device for evaluating borehole stability of mud shale at high temperature and high pressure
08/15/2012CN202381081U Mechanical type vertical-well while-drilling inclinometer
08/15/2012CN202381073U Control system of sidewall contact device of electric imaging logging instrument
08/15/2012CN102635351A Method for determining fracture pressure of hydraulic fracturing on basis of geological strength index
08/15/2012CN102635348A Method for correcting dual-frequency dielectric constants of EWR (electromagnetic wave resistivity) logging-while-drilling instrument
08/15/2012CN102635347A Method for quantitatively enabling thin interbed to be equivalent to formation with horizontal and vertical resistivities
08/15/2012CN101655009B Method for manufacturing annular test-piece from cylindrical rock-soil material sample
08/15/2012CN101619655B Drilling method for accurately controlling hole deflection under complicated stratum and guide device
08/15/2012CN101581217B Device and method for coal bed gas pressure/content measurement while drilling
08/15/2012CN101509369B Horizontal well thruster raising tractor for measuring under well gravity force
08/15/2012CN101343996B High-precision locator used for electromagnetic wave logging instrument calibrator or graduator
08/14/2012US8241474 System and method for sensing using diamond based microelectrodes
08/14/2012US8240378 Downhole characterization of formation fluid as a function of temperature
08/14/2012CA2651054C Measurement while drilling tool with interconnect assembly
08/09/2012US20120199397 System and Method for Determining Pressure Transition Zones
08/08/2012EP2483523A2 Pump-in seal
08/08/2012EP2483518A1 Compression assembly and method for actuating downhole packing elements
08/08/2012EP2483517A1 Anchor assembly and method for anchoring a downhole tool
08/08/2012CN202370513U Self-operated exhaust device for oil-gas-water three-phase flow logging instrument
08/08/2012CN202370512U Large particle drilling type borehole wall coring device
08/08/2012CN202370511U Scale pressing device for density logger
08/08/2012CN202370510U Mechanical switch for intelligent water detector
08/08/2012CN202370502U Modularization integration well logging system
08/08/2012CN202370501U Electric tracer injector capable of injecting isotopic carrier from side face
08/08/2012CN202370483U Heat conducting cone for thick oil well
08/08/2012CN102628360A Determination method for longitudinal resolution index of drilling electromagnetic wave resistivity instrument
08/08/2012CN102628359A Well logging device
08/08/2012CN102628358A Well logging method
08/08/2012CN102628357A Well logging data processing equipment
08/08/2012CN102628354A Pore micron-sized oil water distribution recognition and quantification method
08/08/2012CN102628351A Experimental device and method for thick oil water thermal-catalytic cracking under effect of low frequency vibration waves
08/07/2012US8237584 Changing communication priorities for downhole LWD/MWD applications
08/07/2012US8235106 Formation testing and sampling apparatus and methods
08/07/2012CA2502958C Method and device for determining the resistivity in a geological formation crossed by a cased well
08/02/2012WO2012103461A2 Optimization of sample cleanup during formation testing
08/02/2012WO2012103069A2 Method and apparatus for evaluating fluid sample contamination by using multi sensors
08/02/2012WO2012100283A1 In situ sampling and analysis system for a drill rig and a drill rig incorporating same
08/02/2012WO2012033693A4 Machine, computer program product and method to carry out parallel reservoir simulation
08/02/2012US20120192640 Borehole Imaging and Formation Evaluation While Drilling
08/02/2012US20120192639 Gas sorption analysis of unconventional rock samples
08/02/2012CA2825177A1 Method and apparatus for evaluating fluid sample contamination by using multi sensors
08/02/2012CA2824297A1 In situ sampling and analysis system for a drill rig and a drill rig incorporating same
08/01/2012CN202360088U A wired while-drilling slip ring
08/01/2012CN202360082U LaBr3(Ce) crystal-based multi-channel gamma energy spectrum logging instrument
08/01/2012CN102619506A Displacement type sampler
08/01/2012CN102619505A Ground calibration device of instrument for electromagnetic resistivity logging while drilling
08/01/2012CN102619504A Method for determining radial detection depth index of electromagnetic wave resistivity instrument while drilling
08/01/2012CN102619503A Cable stratum tester
08/01/2012CN102619502A Method for determining crack permeability of crack-pore seepage experiment model
07/2012
07/31/2012US8230946 Apparatus and methods for sidewall percussion coring using a voltage activated igniter
07/31/2012US8230919 Well thermal insulation for formation sampling of viscous fluids and methods of use thereof
07/31/2012US8230918 Method of characterizing hydrocarbon reservoir fractures in situ with artificially enhanced magnetic anisotropy
07/31/2012US8230916 Apparatus and methods to analyze downhole fluids using ionized fluid samples
07/31/2012CA2580091C Remote gas monitoring apparatus for seabed drilling
07/26/2012WO2012098043A1 System and method for coupling an extendable element to an actuator
07/26/2012WO2012024496A3 Methods for downhole sampling of tight formations
07/25/2012CN202348276U Automatic alarm for oil gas detection
07/25/2012CN202348275U Novel oil well sampling device
07/25/2012CN202348274U Nonmagnetic wearable protective casing
07/25/2012CN202348273U Six-arm geolock
07/25/2012CN202348268U High-precision fracturing electronic pressure gauge
07/25/2012CN202348263U Optical fiber Bragg grating sensing monitoring system of oil and gas well
07/25/2012CN202348260U Oilfield logging instrument data acquisition device
07/25/2012CN202348259U Supercritical carbon dioxide well bore multi-phase flow simulation test device
07/25/2012CN202348256U Balancing instrument for angle difference measurement of wireless while-drilling measuring instrument
07/25/2012CN202348255U Frame-type calibration device of double-attitude induction logging instrument
07/25/2012CN202348183U Testing system for technology for controlling pitshaft pressure
07/25/2012CN102606151A Method and device for predicting rock drillability of wildcat well before drilling
07/25/2012CN102606150A Method and system for identifying fragmental rock lithological characters
07/25/2012CN102606149A Storage type geostress testing method and storage type geostress testing device by means of hole-wall strain method
07/25/2012CN102606148A Response testing device for electromagnetic wave resistivity logging-while-drilling tool
07/25/2012CN102606147A Formation testing while drilling instrument
07/25/2012CN102606146A Salt cavern model test method for simulating multi-interbedded salt rock geological conditions
07/25/2012CN102606145A Underground coal mine anti-explosion mud-pulse wireless measurement while drilling system and using method thereof
07/25/2012CN102606137A Three-parameter headstall logger
07/25/2012CN102606136A Logging-while-drilling value response law simulated experimental device
07/25/2012CN102606135A Detecting system for mass and flow of return solid particles in oil drilling shaft and detecting method
07/25/2012CN101482008B Use method of down-hole hole drilling quality check equipment
07/25/2012CN101403298B Double-driving combination logging probe
07/19/2012WO2012097295A2 Rotational test valve with tension reset
07/19/2012WO2012097280A2 Rotational wellbore test valve
07/19/2012WO2012047437A3 Triaxial induction calibration without prior knowledge of the calibration area's ground conductivity
07/19/2012US20120181020 Method Of Manufacture And The Use Of A Functional Proppant For Determination Of Subterranean Fracture Geometries
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