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)
04/2014
04/02/2014CN102518421B Physical simulation visualization experimental device and forming method thereof
04/02/2014CN102418520B Water-locking type unconsolidated formation sampling drilling tool
04/02/2014CN102418511B Draw-down test analysis method for underground shut-in water well with low-permeability storage layer
04/02/2014CN102230373B Method for determining safe drilling fluid density of coal bed based on structural element analysis model
04/02/2014CN102220865B Method for detecting limestone formation pore pressure
04/02/2014CN102162356B Simulation device for evaluating sand control effect and anti-blocking capability of sand control pipe
04/02/2014CN102052076B System for monitoring components of shaft fluid of H2S/CO2-containing gas field and analysis method thereof
04/01/2014US8684110 Sealed core
04/01/2014CA2702965C Parallel adaptive data partitioning on a reservoir simulation using an unstructured grid
03/2014
03/27/2014WO2014047228A1 Single trip multi-zone drill stem test system
03/27/2014WO2014044973A1 Facility for processing a multiphase fluid and method for characterizing said fluid online
03/27/2014WO2014044904A1 Sampling apparatus
03/27/2014US20140083687 Production in fractured systems
03/26/2014EP2710226A2 Systems and methods for single-phase fluid sampling
03/26/2014CN203499682U Sampling device
03/26/2014CN203499681U Horizontal well repeated sectionalization test process tubing string
03/26/2014CN203499680U Artificial well wall simulation pressing device
03/26/2014CN203499679U Online detection device for natural gamma information of rock debris
03/26/2014CN203499668U Calibration device of neutron logging instrument
03/26/2014CN103670396A Method for measuring mineralization degree of stratum water
03/26/2014CN103670395A Fluid logging oil-gas-water interpretation method based on oil-gas-water index chart
03/26/2014CN103670394A Earth-taking device for sand frozen earth
03/26/2014CN103670393A Method for measuring stratum water producing rate
03/26/2014CN103670392A Coal bed gas flow condition rapid recognition method based on starting pressure gradient
03/26/2014CN103670391A Displacement experiment fluid control method and displacement experiment device
03/26/2014CN103670390A Water flooded layer well logging evaluation method and system
03/26/2014CN103670389A Electric scanning method and device for formation interface detection
03/26/2014CN103670388A Method for evaluating organic carbon content of shale
03/26/2014CN103670387A Stratum directional electrical resistivity measuring method and device
03/26/2014CN103670386A Rock stratum multi-point displacement laser measuring method and device
03/26/2014CN103670385A Air bag pressing and pasting device for rock stratum small-caliber vertical shaft inner wall positioning piece
03/26/2014CN103670384A Reservoir classification method and system
03/26/2014CN103670383A Method and device for identifying shale oil deposit effective reservoir
03/26/2014CN103670382A Drill core direction recovery method
03/26/2014CN103670367A Detection performance testing device of array sensing well detection instrument
03/26/2014CN103670358A Fracture extension judging method of hydraulic fracturing crack on sand shale thin interbed geological interface
03/26/2014CN103670356A Temperature-variable tracer composite for combustion in situ, distribution map of temperature fields of combustion in situ, production method of distribution map and development method of combustion in situ
03/26/2014CN102128030B Wellbore vicinity shearing simulating device with multistage cylindrical barrel with sand-prevention compacted sand bodies
03/26/2014CN102121380B Combined cylindrical barrel near wellbore area shear simulation device
03/26/2014CN102094640B Combined cylindrical barrel near-wellbore area shearing simulator with sand control compact sand body
03/26/2014CN101592584B Method for estimating the physical parameters of a geological formation
03/26/2014CN101328805B Method and apparatus for measuring free induction decay signal and its application in composition analysis
03/25/2014US8682628 Multiphase flow in a wellbore and connected hydraulic fracture
03/25/2014US8678109 Intelligent controlled process for well lateral coring
03/25/2014CA2798561C Apparatus and method for detecting gases conveyed by drilling fluids from subterranean wells
03/25/2014CA2657996C Method for comparing and back allocating production
03/25/2014CA2527297C A probe for measuring the electromagnetic properties of a down-hole material
03/21/2014CA2827346A1 Cloud computing system for sampling fluid from a well with a gas trap
03/20/2014WO2014043127A2 Passive sampling device and method of sampling and analysis
03/20/2014WO2014042903A1 Method for monitoring the properties of a fluid cement composition in a flow|path
03/20/2014WO2014040622A1 System and method for determining retained hydrocarbon fluid
03/20/2014WO2013158873A3 System and method for calibrating permeability for use in reservoir modeling
03/20/2014WO2013100770A3 A borehole instrument system for ramam scattering
03/20/2014WO2012094007A3 Downhole formation fluid contamination assessment
03/20/2014US20140076634 Coring Tools And Related Methods
03/20/2014US20140076546 Single Trip Multi-Zone Drill Stem Test System
03/19/2014CN203488171U High-temperature and high-pressure leaking stoppage simulation device
03/19/2014CN203488170U Offshore oil underwater exploration system
03/19/2014CN203488152U Oil-well bushing constant-pressure deflation recovery device with sampling and anti-blocking functions
03/19/2014CN103649463A System and method for performing wellbore stimulation operations
03/19/2014CN103649462A Sampling procedure for polymer-based solutions used in underground formations
03/19/2014CN103643951A High-resolution double-electricity and double-induction logging instrument and method
03/19/2014CN103643950A Array induction log tool for high-temperature high-pressure slim hole
03/19/2014CN103643949A Quantitatively forecasting method and device for oil-gas possibility of reservoirs
03/19/2014CN103643948A Dual-electrical azimuthal imaging logging instrument and method
03/19/2014CN103643947A Dual-electrical frequency spectrum logging instrument and method
03/19/2014CN103643946A Dual-electrical-parameter logging instrument while drilling
03/19/2014CN103643945A Technology for thin layer lithology reservoir recognition and horizontal well drilling tracking
03/19/2014CN103643944A Pressure transferring device for testing coal seam capillary tube
03/19/2014CN103643943A Simulation experiment device and method for determining distribution range of continuous tight sandstone gas reservoir
03/19/2014CN103643942A Isotope labeling testing method of water outlet portion of high-water-content horizontal well
03/19/2014CN103643929A Asphalt particle profile control effect predicting device and method for three-dimensional cementation model
03/19/2014CN103643928A Step-by-step deep profile control method based on pressure field and flow velocity field distribution
03/19/2014CN103643916A Exploratory-hole layered pumping test sealing water stop device
03/19/2014CN103015996B Method for predicting high steep structure stratum leakage velocity before drilling
03/19/2014CN102507578B Instrument for on-line monitoring hydrogen sulfide in drilling fluid
03/19/2014CN101984217B Core pretreatment method for fractured reservoir damage evaluation
03/19/2014CN101896684B Modular connector and method
03/19/2014CN101743377B In situ determination of critical desorption pressures
03/18/2014US8672026 Fluid control in reservior fluid sampling tools
03/13/2014WO2014039959A1 Subsea sampling bottle and system and method of installing same
03/13/2014WO2014039052A1 Well placement and fracture design optimization system, method and computer program product
03/13/2014WO2013166129A4 Low frequency broad band ultrasonic transducers
03/13/2014US20140069640 Minimization of contaminants in a sample chamber
03/13/2014US20140069184 Passive Sampling Device and Method of Sampling and Analysis
03/12/2014EP2706191A2 Minimization of contaminants in a sample chamber
03/12/2014CN203476322U Downhole saturated steam quality optical fiber monitoring device
03/12/2014CN203476321U Automatic rock debris obtaining and washing machine
03/12/2014CN203476320U Device for simultaneously determining pressure of coal bed gas through capsule grouting
03/12/2014CN203476319U Combined probe of lithology density microballoon logging instrument
03/12/2014CN203476318U Anti-theft oil pressure measuring and sampling integrated device
03/12/2014CN203476314U Probe vacuum flask of element capture spectrum logging instrument
03/12/2014CN203476311U Metal impeller for flow logger
03/12/2014CN103628871A Novel electric resistivity invasion correction method based on Archie formula
03/12/2014CN103628870A Rotational flow sand removing device
03/12/2014CN103628869A Lithology-oriented online natural rock debris gamma logging instrument and logging method thereof
03/12/2014CN103628868A Method for predicating oil production quantity in high-volatility oil deposit natural gas injection development
03/12/2014CN103628867A Method and system for simulating and analyzing shale reservoir diagenetic evolution process
03/12/2014CN103628866A Method for obtaining stratum pressure coefficients of stratum
03/12/2014CN103628865A Natural fracture injection test
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