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)
07/2010
07/20/2010US7757551 Method and apparatus for collecting subterranean formation fluid
07/15/2010WO2010080727A2 System and method for sampling and analyzing downhole formation fluids
07/15/2010WO2009088816A8 Systems and methods for well data analysis
07/15/2010US20100175873 Single pump focused sampling
07/15/2010US20100175467 System and method for sampling and analyzing downhole formation fluids
07/15/2010CA2747426A1 Hydrocarbon detection with passive seismic data
07/14/2010EP2205829A2 Technique and apparatus to perform a leak off test in a well
07/14/2010CN201526319U Full-automatic intelligent drilling elastic modulus tester
07/14/2010CN201526318U Multi-layer drawing-type formation function simulator
07/14/2010CN201526317U Visualized flat plate model with upper-coated pressure
07/14/2010CN201526316U Easy and quick wall attaching device for well logging probe of borehole construction
07/14/2010CN201526309U Underground hydrological observation hole
07/14/2010CN101775984A Water holding probe
07/14/2010CN101775983A Sandstone reservoir water layer resistivity-based stratum data processing method
07/14/2010CN101775982A Microsphere hydraulic sidewall contact device
07/14/2010CN101775981A Method for determining true formation resistivity
07/13/2010US7753120 Pore fluid sampling system with diffusion barrier and method of use thereof
07/13/2010US7753119 In-situ heavy-oil reservoir evaluation with artificial temperature elevation
07/13/2010CA2469804C Method for measuring adsorbed and interstitial fluids
07/08/2010WO2010078282A1 Apparatus and method for characterizing stresses of a formation
07/08/2010WO2010039694A3 Method and apparatus for sealing a hole made with a cased hole formation tester
07/08/2010WO2010033751A3 Method and apparatus for formation evalution after drilling
07/08/2010WO2009094410A3 Formation tester with low flowline volume
07/08/2010US20100170718 Formation evaluation while drilling
07/08/2010US20100170717 Formation evaluation while drilling
07/07/2010EP2203621A2 Modular connector and method
07/07/2010CN201521296U Oil well device
07/07/2010CN201521295U Rotating sleeve ray protector
07/07/2010CN201521294U Plugging material sampler for downhole oil tubes of gas wells
07/07/2010CN201521288U Simple integrated logging instrument
07/07/2010CN201521279U Antifreeze sand control anti-disorder sampling valve for oil field well mouth
07/07/2010CN201521246U Quick well formation device in soft soil layer
07/07/2010CN101769151A Resistivity data collecting and processing method based on oil-water front
07/06/2010US7751980 Method and apparatus for evaluating elastic mechanical properties of a transversely isotropic formation
07/06/2010US7748266 Device for analyzing at least one gas contained in a liquid, in particular a drilling fluid
07/06/2010US7748265 Obtaining and evaluating downhole samples with a coring tool
07/06/2010CA2529967C Compositional characterization and quantification of solid deposits from hydrocarbon fluids
07/01/2010WO2010075264A2 Apparatus and methods for gas volume retained coring
07/01/2010WO2010074581A1 Data gathering device and method of removing contaminations from a borehole wall of a well before in situ gathering of formation data from the borehole wall
07/01/2010WO2009083769A3 Downhole fluid analysis
07/01/2010US20100169020 Method and apparatus for real time oil based mud contamination monitoring
07/01/2010US20100163305 Apparatus and Methods for Sidewall Percussion Coring Using a Voltage Activated Igniter
07/01/2010CA2747806A1 Apparatus and methods for gas volume retained coring
06/2010
06/30/2010EP2201210A1 Variable position gas trap
06/30/2010CN201517418U Retractable freeze-proof sampler
06/30/2010CN201517395U Block-resistant sampling valve for oil well
06/30/2010CN101761328A Stratum geology interface instrument drilling induction recognition system
06/30/2010CN101761311A Underwater geotechnical drilling equipment and underwater geotechnical exploration method
06/30/2010CA2689341A1 Method and system for simulating fluid flow in an underground formation with uncertain properties
06/29/2010US7743827 Remote operation wire line core sampling device
06/29/2010CA2583889C Apparatus and method for hard rock sidewall coring of a borehole
06/24/2010WO2010070404A1 Microfluidic methods and apparatus to perform in situ chemical detection
06/24/2010US20100155137 Segmented Tubular Body
06/24/2010US20100155061 Formation evaluation system and method
06/24/2010US20100155058 Apparatus and method for monitoring a fracturing operation
06/24/2010US20100154529 Methods and apparatus to evaluate subterranean formations
06/24/2010CA2687849A1 Methods and apparatus to evaluate subterranean formations
06/23/2010CN201513175U Drilling tool for gathering geogas of concealed metal ores
06/23/2010CN201513174U Simple and designated depth water sampling device
06/23/2010CN201513172U Layer separation testing device with supporting expansion-sealing electric packers
06/23/2010CN201513153U Supporting expansion-sealing electric packer
06/23/2010CN101749014A Simulated formation testing device for carbon-to-oxygen ratio spectrum logging and application method
06/23/2010CN101749013A Method for measuring electrical resistivity of earth layer around oil well through sleeve pipe
06/23/2010CN101749012A Method of determining oil reservoir exploitation level
06/23/2010CN101749008A Manufacturing method of insulation bearing shell of oil well logging instrument
06/23/2010CN101749007A High-temperature cable direct reading five-parameter logging instrument
06/22/2010US7741249 Geosynthetic composite for borehole strengthening
06/22/2010CA2521456C Method and apparatus for measuring mud resistivity
06/17/2010WO2010068887A2 Wide liquid temperature range fluids for pressure balancing in logging tools
06/17/2010WO2009089416A3 Zonal testing with the use of coiled tubing
06/17/2010WO2009006524A3 Pressure interference testing for estimating hydraulic isolation
06/17/2010US20100147590 Apparatus and method for mounting acoustic sensors closer to a borehole wall
06/17/2010US20100147512 Controlled source fracture monitoring
06/17/2010US20100147065 Microfluidic methods and apparatus to perform in situ chemical detection
06/16/2010CN201507302U 37-core flexible joint with test holes
06/16/2010CN201507301U Comprehensive well-logging gauge applicable to natural gas well-logging
06/16/2010CN1670333B Method and system for simulating borehole effect of induction tool having a plurality of arrays
06/16/2010CN101743377A In situ determination of critical desorption pressures
06/16/2010CN101737041A Combined sensor applied to measurement of water ratio in oil well
06/16/2010CN101737040A Device and method for detecting hydrogen sulfide on oil drilling site
06/16/2010CN101737039A Multi-functional underground electromagnetic crack detector
06/16/2010CN101737038A Method for measuring lithology and density of stratum
06/16/2010CN101737037A Synthetic focusing method capable of inducing polarization well logging
06/16/2010CN101737033A Instrumented formation tester for injecting and monitoring of fluids
06/16/2010CN101737031A Novel polar plate of micro-sphere focus logging tool
06/16/2010CN101737009A Geometry steerable drilling system driven by liquid and gas phase drilling media rotary disc
06/15/2010US7739089 Integrated reservoir optimization
06/15/2010CA2424112C A method and apparatus for combined nmr and formation testing for assessing relative permeability with formation testing and nuclear magnetic resonance testing
06/10/2010WO2009090466A3 Downhole sensing system using carbon nanotube fet
06/10/2010WO2009055196A3 In-situ determination of yield stress state of earth formations
06/10/2010US20100139914 Method and apparatus for automated fluid loss measurements of drilling fluids
06/10/2010US20100139387 Methods and Systems for Characterizing LCM Particle Plugging and Rheology in Real Time
06/10/2010US20100139386 System and method for monitoring volume and fluid flow of a wellbore
06/09/2010EP2193255A1 Methods and systems for evaluating and treating previously-fractured subterranean formations
06/09/2010CN201503358U Liquid collecting type bidirectional switch antifreeze sampler
06/09/2010CN201502285U Comprehensive logging instrument observation window
06/09/2010CN101725346A Oil deposit inter-well dynamic connectivity inverting method
06/09/2010CN101725345A Device for simulating casing-cement sheath damage indoor test under stratum action
06/09/2010CN101725344A Method for determining litho-electric parameters
06/09/2010CN101725338A Underground generation device
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