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