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 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
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)
03/2014
03/12/2014CN103628825A Slurry resistivity measurement pressure bearing connector used for induction logging instrument
03/12/2014CN102121381B Shearing simulative device for near wellbore zone with circular platform barrel body
03/12/2014CN102061910B Method for establishing waterflooding extraction predictable physical model of sandstone oil deposit
03/12/2014CN101701518B Pipe string used for high-speed test of pressure control and water stabilization of horizontal well
03/11/2014CA2826537A1 Minimization of contaminants in a sample chamber
03/11/2014CA2612093C Apparatus, method and system for improved reservoir simulation using an algebraic cascading class linear solver
03/06/2014WO2014036095A1 Downhole elastomeric components including barrier coatings
03/06/2014WO2014035552A1 Determining surface wetting of metal with changing well fluids
03/06/2014WO2014035422A1 System and method for detecting drilling events using an opto-analytical device
03/06/2014WO2014014587A3 Capillary electrophoresis for reservoir fluid analysis at wellsite and laboratory
03/06/2014US20140065713 Method for measurement of weight concentration of clay in a sample of a porous material
03/06/2014US20140060848 Plug and Pressure Testing Method and Apparatus
03/06/2014US20140060824 Reducing Differential Sticking During Sampling
03/06/2014US20140060821 Downhole x-ray source fluid identification system and method
03/06/2014US20140060172 Method for measuring weight concentration of clay in a sample of a porous medium
03/05/2014EP2702248A2 Pump drain arrangements for packer systems and methods for sampling underground formations using same
03/05/2014CN203463105U High-temperature thermal recovery steam sampler
03/05/2014CN203463095U Chemical sand control and sand consolidation evaluation experiment device
03/05/2014CN203463087U Shaft simulation device for multilateral-guide moderate sand control well
03/05/2014CN103617345A Method of calculating mineral components of rock in formations through element contents
03/05/2014CN103615243A Method for judging oil types by utilizing geochemical derivative parameter plates
03/05/2014CN103615242A Real-time formation fluid logging multi-parameter hydrocarbon reservoir comprehensive interpretation and evaluation method
03/05/2014CN103615241A Fully-three-dimensional simulated visualized displacement simulation experiment system of fractured-vuggy oil reservoir
03/05/2014CN103615240A Physical simulation experimental device for fluidization deformation of loosened settlings
03/05/2014CN103615239A Logging formation imaging system and method
03/05/2014CN103615238A Scaling-down cavernous formation dual laterolog physical simulation device and experimental method
03/05/2014CN103615236A Method for real-time monitoring of formation pressure by means of remote mud logging information
03/05/2014CN103615230A Method for establishing double-shale-indicative-factor water saturation model
03/05/2014CN102425412B External hung type focusing probe
03/05/2014CN102134993B Simulation experiment device for controlling production of coal bed methane vertical well
03/05/2014CN102116149B Round-table-barrel-shaped near-well-bore shear simulating device with three layers of compaction sand bodies
03/04/2014US8662204 Core barrel restraint
03/04/2014CA2687372C Methods and apparatus to sample heavy oil from a subteranean formation
03/04/2014CA2543801C Reservoir model building methods
02/2014
02/27/2014WO2014032003A1 System and method for performing stimulation operations
02/27/2014WO2014031607A1 Methods and devices for hydraulic fracturing design and optimization: a modification to zipper frac
02/27/2014WO2014031499A1 Mud pulse telemetry systems and methods using receive array processing
02/27/2014WO2014031118A1 Concentric container for fluid sampling
02/27/2014WO2014011448A3 Digital rock analysis systems and methods with reliable multiphase permeability determination
02/27/2014WO2013101695A3 Apparatus and method for storing core samples at high pressure
02/27/2014US20140054030 Speed control devices and methods for drop down tools
02/26/2014EP2700785A2 Natural fracture injection test
02/26/2014CN203452781U Cable type stratum tester
02/26/2014CN203452780U Motor direct-driven-type side-wall coring instrument
02/26/2014CN203452779U Hydraulic sea-bottom deposit soil collecting device
02/26/2014CN203452778U Dipole array acoustilog instrument
02/26/2014CN203452777U Hard electrode combined well logging instrument used for measuring drilled well
02/26/2014CN203452702U Transmission tool for through-drill-rod open-hole well logging instrument
02/26/2014CN203452665U Hydraulic hard-tube connecting system of side-wall corer
02/26/2014CN103607397A Shallow water testing device for underwater production facilities
02/26/2014CN103603661A Intelligent offshore oil well sampler and sampling method
02/26/2014CN103603660A Steam sampling system and method
02/26/2014CN103603659A Method for identifying fluid type of reservoir with complicated pore structure by using conventional logging information
02/26/2014CN103603658A Oil production experimental device capable of simulating reservoir pressure supply
02/26/2014CN103603657A Method for measuring formation resistivity at drill place
02/26/2014CN103603656A Acoustic logging orientation receiving method and device based on phase control arc array
02/26/2014CN103603652A While-drilling packing water injection test device for coal cracks
02/26/2014CN103603650A Transient electromagnetic logging instrument
02/25/2014CA2690688C Downhole tool with extendable probe for penetrating mud cake and related probing method
02/25/2014CA2532436C System and methods of deriving fluid properties of downhole fluids and uncertainty thereof
02/20/2014WO2014028834A1 Wide frequency range modeling of electromagnetic heating for heavy oil recovery
02/20/2014WO2014028228A1 Apparatus and system for passively sampling production fluid from a well
02/20/2014DE102004043151B4 Verfahren und Vorrichtung zum Bestimmen der Geschwindigkeit und von Eigenschaften von strömenden Fluiden unter Verwendung von magnetischen Kernresonanzmessungen Method and apparatus for determining the velocity and of properties of flowing fluids using nuclear magnetic resonance measurements
02/19/2014CN203441487U Pre-arranged pore plate elbow of Christmas tree
02/19/2014CN203441486U Hydraulic vibration head for sonic drilling
02/19/2014CN203441485U Formation fluid control valve
02/19/2014CN203441484U Experimental facility for evaluating steam reforming feature of reservoir rock
02/19/2014CN203441483U Experimental device of steam erosion argillaceous interlayer rock
02/19/2014CN203441482U Single-electrode power supply bottom-installation electrode system
02/19/2014CN203441479U Comprehensive borehole geological condition exploration device
02/19/2014CN203441475U Protection device for logging instrument
02/19/2014CN203441432U Oil well anti-theft sampling valve
02/19/2014CN103595521A Cross-well electromagnetic measurement time synchronizing system
02/19/2014CN103590828A Method for evaluating formation pressure through well logging dck index method
02/19/2014CN103590827A Dense clastic rock natural gas well productivity prediction method based on reservoir classification
02/19/2014CN103590826A Detection device for large underground horizontal dissolving cavity
02/19/2014CN103590825A Transient electromagnetic well-logging probe detection system
02/19/2014CN103590824A Productivity calculation method for tight gas horizontal wells modified by multi-stage fracturing
02/19/2014CN103590823A Device of measuring formation resistivity of drill
02/19/2014CN103590822A Method of judging low-resistivity annulus formed in formation
02/19/2014CN103590821A Device and method for petroleum entrapment simulation experiment
02/19/2014CN103590820A Transient electromagnetic emission probe
02/19/2014CN103590809A Transient electromagnetic well logging excitation method
02/19/2014CN103590807A Method for determining heavy oil thermal recovery steam chamber state
02/19/2014CN103590799A Three-dimensional fracturing design method for horizontal well in compact sandstone reservoir
02/19/2014CN103590768A Treatment method for abandoned uncased wells in coal mining area
02/19/2014CN103588801A Trace element well-to-well tracer agent use method
02/19/2014CN102182442B Method for preparing radioisotope tracer
02/13/2014WO2014025342A1 Methods of predicting a reservoir fluid behavior using an equation of state
02/13/2014WO2014023111A1 Coal and gas burst risk parameter drilling and predicting integrated method
02/13/2014US20140041446 Apparatus and System for Passively Sampling Production Fluid from a Well
02/12/2014CN203430507U Oilfield polymer injection online sampler
02/12/2014CN203430506U Visual physical simulation device considering fluid channeling between layers
02/12/2014CN103573264A Heterogeneous reservoir water injection commingling interlayer disturbance simulation system and detection method
02/12/2014CN103573263A Tight sandstone reservoir fracturing production horizontal well flowing pressure design method
02/12/2014CN103573262A Pressure test device for oil field pumping device
02/12/2014CN103573261A Underground ultrasonic roof and floor measuring method and device
02/12/2014CN103573250A Method for calculating distances between horizontal well borehole and upper and lower interfaces of stratum
02/12/2014CN103573247A Parallel planar coil for induction logging and induction logging device
02/12/2014CN103573246A Triaxial quadrature coil system, triaxial quadrature coil system adjusting method and plate-type insulator
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