| 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) |
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| 07/29/2009 | EP2082266A2 Downhole measurment of substances in earth formations |
| 07/29/2009 | EP1285250B1 Device for taking samples from a material of granular or powdery composition |
| 07/29/2009 | CN201280932Y Five-electrode energizing shielding retention rate measuring conductance sensor |
| 07/29/2009 | CN201280931Y Extendible component and downhole tool with the extendible component |
| 07/29/2009 | CN100519987C Method for determining by hydraulic pressure force of porous layer section |
| 07/28/2009 | US7565928 Downhole abrading tool having a taggant injection assembly for indicating excessive wear |
| 07/28/2009 | US7565835 Method and apparatus for balanced pressure sampling |
| 07/28/2009 | US7565833 Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis |
| 07/28/2009 | CA2388485C Device for taking samples from a material of granular or powdery composition |
| 07/23/2009 | WO2009091907A1 Downhole multi-phase flow imager |
| 07/23/2009 | WO2009090460A2 Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the same |
| 07/23/2009 | WO2009090351A1 Method of analyzing a number of hydrocarbons contained in a drilling fluid, and associated device |
| 07/23/2009 | WO2009058577A3 Coring tool and method |
| 07/23/2009 | US20090187346 Methods for the identification of bubble point pressure |
| 07/23/2009 | US20090183871 Filling the voids with impurity reactive particles of activated carbon, coke breeze, zero-valent iron, apatite, organophilic clay, zeolite, polymeric ion exchange resins, polymeric adsorbing resin, by vibration or vacuum; heat sealing a cover sheet on top and edge; control soil or water contamination |
| 07/23/2009 | CA2712128A1 Method of analyzing a number of hydrocarbons contained in a drilling fluid, and associated device |
| 07/23/2009 | CA2709344A1 Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the same |
| 07/22/2009 | WO2009094253A1 Downhole characterization of formation fluid as a function of temperature |
| 07/22/2009 | EP2080040A2 Measurement of standoff corrected photoelectric factor |
| 07/22/2009 | EP2079900A1 Apparatus and method for manipulating fluid during drilling or pumping operations |
| 07/22/2009 | EP1442280B1 Module for extracting gas from underground liquid and installation equipped therewith |
| 07/22/2009 | CN201277032Y Anti-corrosion high pressure sampler of oil-field flooding system |
| 07/22/2009 | CN201277031Y Integrated combination logging instrument |
| 07/22/2009 | CN201277030Y While-drilling detection early-warning apparatus for horizontal guiding drill |
| 07/22/2009 | CN201277029Y Sound insulation and shock absorption structure of sound wave receiving transducer unit |
| 07/22/2009 | CN101487390A Archie mode method for confirming initial oil saturation of oil layer |
| 07/22/2009 | CN101487389A While-drilling down-hole measurement for substance in stratum |
| 07/22/2009 | CN100516929C A combined propagation and lateral resistivity downhole tool |
| 07/22/2009 | CA2712957A1 Downhole characterization of formation fluid as a function of temperature |
| 07/21/2009 | US7565277 Method for modelling fluid flows in a multilayer porous medium crossed by an unevenly distributed fracture network |
| 07/21/2009 | CA2484902C Mwd formation tester |
| 07/16/2009 | WO2009089416A2 Zonal testing with the use of coiled tubing |
| 07/16/2009 | WO2009088899A2 Methods and apparatus for exploring geological formations utilziing strontium measurements |
| 07/16/2009 | WO2009088816A2 Systems and methods for well data analysis |
| 07/16/2009 | US20090179648 Combined propagation and lateral resistivity downhole tool |
| 07/16/2009 | US20090178921 Electro-chemical sensor |
| 07/16/2009 | US20090178853 Mobile soil sampling device with vacuum collector |
| 07/16/2009 | US20090178797 Groundwater monitoring technologies applied to carbon dioxide sequestration |
| 07/16/2009 | CA2711683A1 Zonal testing with the use of coiled tubing |
| 07/15/2009 | CN201273190Y Triaxial-stress multi-pressure test point rock core reservoir simulation device |
| 07/15/2009 | CN201273189Y Through casing resistivity logging detector |
| 07/15/2009 | CN101482015A Root-soil drill integrated sampling instrument |
| 07/15/2009 | CN101482014A Rotary-focusing gamma measuring apparatus and method |
| 07/15/2009 | CN101482013A While-drilling borehole compensation electromagnetic wave resistivity survey apparatus |
| 07/15/2009 | CN100513742C Electromagnetic telemetering method and system of measuring by bit |
| 07/15/2009 | CA2855225A1 Dynamic reservoir engineering |
| 07/15/2009 | CA2649439A1 Dynamic reservoir engineering |
| 07/14/2009 | CA2519066C Method to measure injector inflow profiles |
| 07/14/2009 | CA2482751C Method for evaluating capillary pressure curve of an underground deposit rocks based on rock cuttings measurements |
| 07/14/2009 | CA2368478C Method for simulating a characteristic of a physical system |
| 07/11/2009 | CA2648257A1 Input deck migrator for simulators |
| 07/09/2009 | WO2009086279A2 Acoustic measurements with downhole sampling and testing tools |
| 07/09/2009 | WO2009086061A1 Method and system for downhole analysis |
| 07/09/2009 | WO2009085518A2 In-situ formation strength testing |
| 07/09/2009 | WO2009085516A1 In-situ formation strength testing with coring |
| 07/09/2009 | WO2009083805A2 Subsurface formation core acquisition system usinghigh speed data and control telemetry |
| 07/09/2009 | WO2009083769A2 Downhole fluid analysis |
| 07/09/2009 | WO2009083243A1 Real-time measurement of reservoir fluid properties |
| 07/09/2009 | WO2009064899A3 Downhole x-ray source fluid identification system and method |
| 07/09/2009 | US20090173542 Vibratory unit for drilling systems |
| 07/09/2009 | US20090173493 Interface and method for transmitting information to and from a downhole tool |
| 07/09/2009 | US20090173142 Controlling gas pressure in porosity storage reservoirs |
| 07/09/2009 | CA2710621A1 Borehole imaging and orientation of downhole tools |
| 07/09/2009 | CA2705931A1 In-situ formation strength testing |
| 07/09/2009 | CA2705928A1 In-situ formation strength testing with coring |
| 07/08/2009 | CN201269101Y Impedance sensor exciting current commutation circuit used for down-hole fluid moisture percentage measurement |
| 07/08/2009 | CN201269100Y 岩屑取样器 Cuttings Sampler |
| 07/08/2009 | CN201269099Y Installation push rod used for borehole stressmeter or top plate separation indicator |
| 07/08/2009 | CN201269098Y Chart board used for seeking flooding degree |
| 07/08/2009 | CN101479442A Testing process for zero emission hydrocarbon wells |
| 07/08/2009 | CN101476463A Drill-following natural gamma geosteering method for horizontal well |
| 07/08/2009 | CN100510319C Method for prediction of oil well annular tube damage and detecting instrument for implementing the method |
| 07/07/2009 | US7558716 Method and system for estimating the amount of supercharging in a formation |
| 07/07/2009 | US7556097 Docking receiver of a zone isolation assembly for a subsurface well |
| 07/07/2009 | US7556096 Varying heating in dawsonite zones in hydrocarbon containing formations |
| 07/07/2009 | US7556095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent |
| 07/02/2009 | WO2009082630A2 Fiber optic refractometer |
| 07/02/2009 | WO2009082550A2 Apparatus and method for improved light source and light detector for gravimeter. |
| 07/02/2009 | WO2009081243A1 Downhole tool |
| 07/02/2009 | WO2009042781A3 Apparatus and methods for continuous tomography of cores |
| 07/02/2009 | US20090168955 Methods and apparatus for exploring geological formations utilizing strontium measurements |
| 07/02/2009 | US20090166088 Subsurface formation core acquisition system using high speed data and control telemetry |
| 07/02/2009 | US20090166037 Apparatus and method for sampling downhole fluids |
| 07/02/2009 | US20090166029 Method of formation fracture dimensions |
| 07/02/2009 | US20090166024 Completion apparatus for measuring streaming potentials and determining earth formation characteristics |
| 07/02/2009 | CA2704941A1 Apparatus and method for improved light source and light detector for gravimeter |
| 07/01/2009 | EP2075403A1 Real-time measurement of reservoir fluid properties |
| 07/01/2009 | CN201265414Y Down-hole nitrogen and oil well fluid data analyzer |
| 07/01/2009 | CN201265413Y 油井取样器 Well Sampler |
| 06/30/2009 | US7555390 Petrophysical interpretation of multipass array resistivity data obtained while drilling |
| 06/30/2009 | US7552654 Soil sampler apparatus and method |
| 06/30/2009 | CA2544314C Drill cutting sampler |
| 06/28/2009 | CA2646770A1 Time-lapsed diffusivity logging for monitoring enhanced oil recovery |
| 06/25/2009 | WO2009077867A2 Technique and apparatus to perform a leak off test in a well |
| 06/25/2009 | WO2009042785A3 Sensors for estimating properties of a core |
| 06/25/2009 | WO2009030756A3 Method for prediction in an oil/gas production system |
| 06/25/2009 | US20090164128 In-situ formation strength testing with formation sampling |
| 06/25/2009 | US20090159335 Monitoring apparatus for core barrel operations |
| 06/25/2009 | US20090159334 Method for detecting formation pore pressure by detecting pumps-off gas downhole |
| 06/25/2009 | US20090159278 Single Packer System for Use in Heavy Oil Environments |