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)
12/2010
12/02/2010US20100300194 Permeability flow balancing within integral screen joints and method
12/01/2010CN201661295U Gas hydrate reservoir physical property measuring device
12/01/2010CN201661294U Identification module of formation fluid
12/01/2010CN101903994A Downhole tool
12/01/2010CN101899973A Method for measuring formation water resistivity and device thereof
12/01/2010CN101899972A Establishment method of physical model capable of forecasting waterflood development of sandstone reservoirs
12/01/2010CN101899971A Identification method for electric imaging electrofacies of carbonate formation and device thereof
11/2010
11/30/2010US7844430 Reservoir model building methods
11/30/2010US7841406 Formation fluid sampling apparatus and methods
11/30/2010US7841405 Flexible borehole liner with diffusion barrier and method of use thereof
11/30/2010US7841402 Methods and apparatus for collecting a downhole sample
11/30/2010US7841399 Pressure and friction reducing flow adapter
11/25/2010WO2010135636A2 Apparatus and method for modeling well designs and well performance
11/25/2010WO2010134912A1 Formation tester pad
11/25/2010WO2010132927A1 Forward looking borehole radar to determine proximity of adjacent interface of different seams or layers
11/25/2010US20100294493 Methods and apparatus to change the mobility of formation fluids using thermal and non-thermal stimulation
11/25/2010US20100294491 Cleanup production during sampling
11/25/2010US20100294486 Self-inserting seal assembly
11/25/2010CA2762975A1 Apparatus and method for modeling well designs and well performance
11/24/2010CN201650367U Portable gas outburst predicting instrument
11/24/2010CN201650278U Oil well sampling mixer
11/24/2010CN201650277U Pressure regulating safety valve puller
11/24/2010CN201650276U Lithology density logging instrument
11/24/2010CN201650275U Litho-density logging tool
11/24/2010CN201650177U Shaft wall coring gun
11/24/2010CN1693896B Method for determining properties of formation fluids
11/24/2010CN101896684A Modular connector and method
11/24/2010CN101892839A Apparatus and method for formation evaluation
11/24/2010CN101892838A Method and device for obtaining high-resolution well logging curve
11/24/2010CN101892837A Formation factor determining method and oil saturation determining method
11/24/2010CN101892836A Method for preparing large-scale porous percolating medium
11/24/2010CN101892834A Pressure balance type tank in formation pressure tester-during-drilling tool
11/24/2010CN101892830A Deep ground stress measurement while drilling (MWD) system
11/23/2010US7836951 Methods and apparatus for collecting a downhole sample
11/23/2010CA2623793C Microfluidic apparatus and method for measuring thermo-physical properties of a reservoir fluid
11/23/2010CA2601283C System and method for real-time management of formation fluid sampling with a guarded probe
11/23/2010CA2308268C Well treatment fluid and method of manufacture
11/18/2010WO2010131978A1 Method for sampling and analysis of production from a subsea well for measuring salinity of produced water and also volumetric ratio between liquid fractions
11/18/2010WO2010130037A1 Apparatus for testing hydraulic fracturing fluids
11/18/2010WO2010104728A3 Downhole determination of asphaltene content
11/17/2010CN201635737U Vacuum thermal insulation and pressure maintaining type gas well sampler
11/17/2010CN201635736U Well mouth sampling valve antitheft device
11/17/2010CN201635735U Water-holding probe
11/17/2010CN201635734U Feeble signal detector
11/17/2010CN201635721U Multifunctional coalbed drilling fluid dynamic pollution assessment equipment
11/17/2010CN201635717U Portable disassembly auxiliary frame for rod-shaped instrument
11/17/2010CN1757881B Apparatus for formation evaluation
11/17/2010CN101886540A Lateral multi-lens composite imaging video well-logging device
11/17/2010CN101236141B Underground gas collection spiral drill
11/17/2010CN101050700B Electromagnetic wave logging instrument correcting method using high permeable magnetic material
11/16/2010CA2620050C Packer variable volume excluder and sampling method therefor
11/16/2010CA2617115C Methods and apparatus to sample heavy oil in a subterranean formation
11/11/2010WO2010093533A3 Methods and apparatus to perform stress testing of geological formations
11/11/2010WO2009138911A3 Methods and apparatus for characterization of petroleum fluids contaminated with drilling mud
11/11/2010US20100282516 Formation coring apparatus and methods
11/11/2010US20100282515 Sealed core
11/10/2010CN201627580U Litho-density long-spaced data acquisition and processing thick film circuit
11/10/2010CN201627577U True triaxial drilling-plugging simulation and evaluation device
11/10/2010CN201627552U Eccentric block core printer
11/10/2010CN1657744B Apparatus and method for acquiring information while drilling
11/10/2010CN101883984A Methods and apparatus to determine a concentration of nitrogen in a downhole fluid
11/10/2010CN101881161A Wet drilling equipment
11/10/2010CN101881160A Fixed point sampler
11/10/2010CN101881159A Lithology and density logging instrument
11/10/2010CN101881157A Sound wave well logging transducer
11/09/2010CA2557384C Methods for using a formation tester
11/04/2010WO2010059601A4 Fluid expansion in mud gas logging
11/04/2010US20100276197 Measurements while drilling or coring using a wireline drilling machine
11/03/2010CN201620890U Accurate sampling device of gas well
11/03/2010CN201620889U Small-tube-diameter underground annular sampler
11/03/2010CN201620888U Rear seal plug assembly of core gun
11/03/2010CN201620887U Machine-acquiring testing pipe-string for floating drilling rig
11/03/2010CN201620884U Manchester drive circuit
11/03/2010CN201620874U Nine-parameter logging instrument
11/03/2010CN201620841U Oil extractor operating parameter real-time adjusting and control device
11/03/2010CN201620823U Horizontal well pressure control electric multiple-current test valve
11/03/2010CN101878434A Method for characterizing a geological formation traversed by a borehole
11/03/2010CN101878350A Downhole, single trip, multi-zone testing system and downhole testing method using such
11/03/2010CN101876245A Shell of electromagnetic wave resistivity instrument
11/03/2010CN101131089B Push-pull type multi-arm righting hole diameter micrologging instrument
10/2010
10/30/2010CA2702556A1 Apparatus and method for mobile coal sampling
10/30/2010CA2701859A1 Determining elastic and fluid flow properties of a fractured reservoir
10/30/2010CA2665058A1 Apparatus and method for mobile coal sampling
10/28/2010WO2010124063A2 Use of chemically and geologically consistent constraints for obtaining elemental chemistry downhole
10/28/2010WO2010123746A2 Televiewer image wood-grain reduction techniques
10/28/2010WO2010122413A1 Detecting gas compounds for downhole fluid analysis using microfluidics and reagent with optical signature
10/28/2010WO2010102130A3 Apparatus and method for formation testing
10/28/2010WO2010083166A3 In-situ stress measurements in hydrocarbon bearing shales
10/28/2010US20100274490 Thickness-independent computation of horizontal and vertical permeability
10/28/2010US20100269579 Detecting gas compounds for downhole fluid analysis using microfluidics and reagent with optical signature
10/28/2010CA2759488A1 Televiewer image wood-grain reduction techniques
10/27/2010CN201614929U 录井网络数据采集装置 Logging of network data acquisition device
10/27/2010CN101435749B Drill stem type hydrate probe boring sampling apparatus
10/26/2010US7820960 Methods, systems, and computer program products for measuring the density of material including a non-nuclear moisture property detector
10/26/2010US7819181 Method and an apparatus for evaluating a geometry of a hydraulic fracture in a rock formation
10/21/2010WO2010120600A2 Strength (ucs) of carbonates using compressional and shear acoustic velocities
10/21/2010WO2010120593A2 A microfluidic oscillating tube densitometer for downhole applications
10/21/2010WO2010098835A3 Well test system
10/21/2010WO2009134835A3 Method of miscible injection testing of oil wells and system thereof
10/21/2010WO2009129289A3 Formation treatment evaluation
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