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)
09/2010
09/01/2010CN201568043U Underground multifunctional corrosion rate detection device
09/01/2010CN1573013B Method for characterizing underground geological structure
08/2010
08/31/2010US7784539 Hydrocarbon recovery testing method
08/31/2010US7784339 Perforation logging tool and method
08/26/2010WO2010059540A3 Oscillator sensor for determining a property of an earth formation
08/25/2010EP2220487A1 System and method of analyzing fluids at a drilling location
08/25/2010CN201560759U Horizontal directional sampling drilling tool
08/25/2010CN201560758U Cable distribution device capable of resisting measurement interference
08/25/2010CN201558577U Small electric degasser
08/25/2010CN101445211B Anti-running linked braking system of logging winch
08/24/2010US7783462 Reservoir evaluation methods
08/24/2010US7779684 Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation
08/24/2010CA2853811A1 Determining formation fluid composition
08/24/2010CA2706755A1 Well gauging system and method
08/19/2010WO2010093774A2 Wellbore fluid testing apparatus and methods
08/19/2010WO2010093533A2 Methods and apparatus to perform stress testing of geological formations
08/19/2010US20100206564 Sampling system and method
08/19/2010US20100206063 Methods and apparatus to use multiple sensors to measure downhole fluid properties
08/18/2010CN201554460U Multiphase flow gas real-time on-line dedicated gas sample collector
08/18/2010CN201554459U 6-arm mechanical geolock for oil exploration
08/18/2010CN201554458U Digital acoustical wave density-varied comprehensive logging instrument
08/18/2010CN201554457U Digital acoustic-wave multi-level downhole instrument capable of realizing automatic real-time gain control
08/18/2010CN201554455U Simple well logging unit
08/18/2010CN201554450U Flexible belt-shaped object quick connector
08/18/2010CN201554447U Logging hard electrode stabilizer
08/18/2010CN101806215A Method for judging reservoir fluid type with irreducible water saturation data
08/18/2010CN101806214A Ultra-deep well drilling simulation experiment device
08/18/2010CN101806213A Simulated flow experiment method for nano-grain adsorbed core micro channel
08/17/2010US7775276 Method and apparatus for downhole sampling
08/17/2010US7775274 Method for detecting fluid leakage from a subterranean formation
08/12/2010WO2010068887A3 Wide liquid temperature range fluids for pressure balancing in logging tools
08/12/2010US20100199757 Apparatus and method for testing reservoir drilling fluids for drilling unconsolidated tar sands
08/11/2010CN201546719U Focusing nuclear magnetic resonance eccentric well-logging probe
08/11/2010CN201546718U High-pressure high-temperature dynamic fluid loss instrument
08/11/2010CN201546717U Wireless total hydrocarbon collecting system
08/11/2010CN201546716U Lithologic density short source-spacing data collection processing thick film circuit
08/11/2010CN201546715U Natural gamma shockproof probe
08/11/2010CN201546714U Antimagnetic structure of natural gamma-ray tool probe
08/11/2010CN201546711U EDIB bus adapter
08/11/2010CN201546703U Underground back-up risk-avoiding system of logging instrument
08/11/2010CN201546701U Automatic visual angle adjusting device for display of all hydrocarbon intelligent logging system
08/11/2010CN201546698U Propeller auxiliary arm with wiring protection function
08/11/2010CN201546697U Oil logging instrument balance device
08/11/2010CN201546695U Seal structure of rotary bridle
08/11/2010CN201546694U Underground instrument maintenance and calibration system
08/11/2010CN1930573B Method and apparatus for chemometric estimations of fluid density, viscosity, dielectric constant, and resistivity from mechanical resonator data
08/11/2010CN101802348A Methods of calibrating a fluid analyzer for use in a wellbore
08/11/2010CN101798924A Icebound type pressure-maintaining and temperature-preserving sampler
08/11/2010CN101798923A System and method for remote control coal mine evacuation working face advance detection and forecasting
08/11/2010CN101798922A Method for judging filling degree of natural gas and application thereof in low-abundance gas reservoir
08/11/2010CN101798921A Corestone manufacture method
08/11/2010CN101798917A Multifunctional dynamic pollution evaluation device of coalbed drilling fluid
08/11/2010CN101798912A Device and method for regulating and controlling water content of production fluid of underground layering of oil field
08/10/2010US7774140 Method and an apparatus for detecting fracture with significant residual width from previous treatments
08/10/2010US7770663 Apparatus for making quality control measurements while drilling
08/10/2010CA2510741C Apparatus and method for characterizing a reservoir
08/05/2010WO2010045642A3 Method and apparatus for while-drilling transient resistivity measurements
08/05/2010US20100193187 Downhole fluid filter
08/05/2010US20100192684 Phase separation detection in downhole fluid sampling
08/04/2010EP2212507A1 Method and apparatus for continuous formation sampling and analysis during wellbore drilling
08/04/2010CN201541199U Logging instrument underground backup power system occupying no cable cores
08/04/2010CN201539253U Pipe nipple for formation characteristic Tool
08/04/2010CN201539251U DTB/CAN bus signal simulator
08/04/2010CN201539248U Electromagnetic logging instrument for oilfield production well
08/04/2010CN201539246U Neutron source bin with automatic position function
08/04/2010CN201539245U Logging ground system power supply and data bus anti-interference circuit
08/04/2010CN101793147A Online nuclear magnetic resonance type analysis and detection device of oil content of drilling fluid
08/04/2010CN101793146A Method for testing strata of horizontal well
08/04/2010CN101793145A Method for determining calcareous interbed and formation porosity by neutron lifetime and compensated neutron combination logging
08/04/2010CN101793144A Auxiliary device for improving observing effect of drilling television imaging instrument in muddy water hole
08/03/2010CA2538577C Characterizing connectivity in reservoir models using paths of least resistance
08/03/2010CA2485471C Method and probe for measuring hydraulic conductivity of soil
08/03/2010CA2375506C Method of upscaling permeability for unstructured grids
08/02/2010CA2690949A1 Phase separation detection in downhole fluid sampling
07/2010
07/29/2010WO2010085288A1 Method and apparatus for estimating a fluid property
07/29/2010WO2010045185A3 Isolation system for drilling systems
07/29/2010US20100191471 Method to determine rock properties from drilling logs
07/29/2010US20100186951 Mud cake probe extension
07/28/2010CN201535162U 油驱替水岩样盒 Oil displacing water-rock like box
07/28/2010CN1936269B Three-layer water-searching pipe column for oil-pumping well in oil field and water-searching method
07/28/2010CN101788544A On-line tester for plugging capability of water-base mud
07/28/2010CN101787884A Method for judging fluid type of reservoir through acoustic porosity-neutron porosity differential
07/28/2010CN101787867A Drilling mud forced cooling and circulating system
07/28/2010CN101122229B Non-metal composite material insulator and metal bonding method dedicated for petrol logging instrument
07/27/2010US7762328 Formation testing and sampling tool including a coring device
07/27/2010US7762131 System for predicting changes in a drilling event during wellbore drilling prior to the occurrence of the event
07/27/2010US7762130 Sampling chamber for a single phase fluid sampling apparatus
07/23/2010CA2653115A1 Method to determine rock properties from drilling logs
07/22/2010WO2010083166A2 In-situ stress measurements in hydrocarbon bearing shales
07/22/2010WO2010081981A2 Method for determining the concentration of a plurality of compounds in a drilling fluid
07/22/2010WO2010048054A3 Apparatus and methods for collecting a downhole sample
07/22/2010CA2750374A1 In-situ stress measurements in hydrocarbon bearing shales
07/22/2010CA2749387A1 Method for determining the concentration of a plurality of compounds in a drilling fluid
07/21/2010CN201529573U Centrifugal rotor for analyzing rock core
07/21/2010CN101782520A Method for two-dimensional recognition of paleo-oil layer and neo-oil layer by using petroleum inclusion and oily asphalt
07/21/2010CN101781983A Method used for gas drilling drillstem test
07/21/2010CN101118201B Rarefaction sludge sampler
07/21/2010CA2690487A1 Downhole mass spectrometry
07/20/2010US7757769 Wellbore and reservoir treatment device and method
07/20/2010US7757760 System and method for real-time management of formation fluid sampling with a guarded probe
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