| 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) |
|---|
| 05/13/2009 | CN100487427C Determining fluid properties from fluid analyzer |
| 05/12/2009 | US7530265 Method and apparatus for elemental analysis of a fluid downhole |
| 05/12/2009 | CA2482912C System and method for interpreting drilling data |
| 05/12/2009 | CA2421863C Evaluation of multilayer reservoirs |
| 05/07/2009 | WO2009059132A1 Processing gas isotope measurements in association with logs from oil and gas drilling operations |
| 05/07/2009 | WO2009058577A2 Coring tool and method |
| 05/07/2009 | WO2009057870A1 Core catcher and corer having it |
| 05/07/2009 | US20090114447 Coring Tool and Method |
| 05/07/2009 | US20090114387 Methods for identifying compounds useful for producing heavy oils from underground reservoirs |
| 05/07/2009 | US20090114013 Apparatus and method for improved light source and light detector for gravimeter |
| 05/07/2009 | CA2704155A1 Coring tool and method |
| 05/06/2009 | EP2055891A2 Method and apparatus for determining flow characteristics of a geological formation |
| 05/06/2009 | CN201232548Y Mother oil sample fetching device |
| 05/06/2009 | CN201232547Y Degassing device |
| 05/06/2009 | CN201232546Y Anti winding high-temperature eccentric wellhead tester |
| 05/06/2009 | CN101427114A A method and apparatus for a downhole spectrometer based on tunable optical filters |
| 05/06/2009 | CN101424185A Geochemistry measuring method for pouring and acquiring residual oil parameter characteristic and relationship of mainstream line and shunt line oil reservoir |
| 05/06/2009 | CN101424184A Calibrator |
| 05/06/2009 | CN101424183A Density graduation apparatus with automatic hydraulic sidewall contact device |
| 05/05/2009 | US7527109 Locating apparatus and system |
| 05/05/2009 | US7526953 Methods and apparatus for the downhole characterization of formation fluids |
| 05/05/2009 | CA2571149C Downhole fluid communication apparatus and method |
| 04/30/2009 | WO2009055672A1 System and method of analyzing fluids at a drilling location |
| 04/30/2009 | WO2009055523A1 Method and apparatus for continuous formation sampling and analysis during wellbore drilling |
| 04/30/2009 | WO2009055196A2 In-situ determination of yield stress state of earth formations |
| 04/30/2009 | WO2009026051A4 Apparatus and methods to control fluid flow in a downhole tool |
| 04/30/2009 | US20090107668 Multi-function completion tool |
| 04/30/2009 | CA2703741A1 System and method of analyzing fluids at a drilling location |
| 04/29/2009 | CN101421490A A method and apparatus for ion-selective discrimination of fluids downhole |
| 04/29/2009 | CN101421489A Method for production metering of oil wells |
| 04/29/2009 | CN101421488A Kerogen extraction from subterranean oil shale resources |
| 04/29/2009 | CN101418685A Neutron logging tool having source and target with deuterium-tritium gas admixture |
| 04/29/2009 | CN101418684A Tritium-tritium neutron generator logging tool |
| 04/29/2009 | CN101418683A Controllable downhole radioactive tracer generator device |
| 04/29/2009 | CN101418682A Well logging winche over-depth protective system |
| 04/28/2009 | US7525315 Resistivity logging tool and method for building the resistivity logging tool |
| 04/28/2009 | CA2559248C Downhole probe assembly |
| 04/28/2009 | CA2529855C Method and apparatus for formation testing |
| 04/23/2009 | WO2009052235A1 Formation sampler with cleaning capability |
| 04/23/2009 | US20090103087 Method and Apparatus for Performing Spectroscopy Downhole within a Wellbore |
| 04/23/2009 | US20090101339 Formation evaluation system and method |
| 04/23/2009 | CA2702868A1 Formation sampler with cleaning capability |
| 04/22/2009 | CN201225150Y Apparatus for monitoring gas well downhole dynamic corrosion |
| 04/22/2009 | CN201225145Y Rolling wheel righting device of righting over core type well logging instrument |
| 04/22/2009 | CN201225144Y Theft- proof box of oil extraction well data recording implement |
| 04/22/2009 | CN101415905A Method for optimising the production of a cluster of wells |
| 04/22/2009 | CN101413389A Graduation apparatus of magnetic nuclear resonance logger |
| 04/22/2009 | CN101413388A Method for obtaining oil-water common-layer original oil-containing saturation degree and method for estimating non-test oil-water common-layer original oil-containing saturation degree |
| 04/21/2009 | US7520324 Completion apparatus for measuring streaming potentials and determining earth formation characteristics |
| 04/21/2009 | US7520166 Method for detecting hydrocarbons in geological strata |
| 04/21/2009 | CA2523039C Subsurface measurement apparatus, system, and process for improved well drilling, control, and production |
| 04/21/2009 | CA2370430C Method and device for evaluating, during drilling, the capacity of well fluids to form hydrates |
| 04/16/2009 | WO2009048776A2 Coarse wellsite analysis for field development planning |
| 04/16/2009 | WO2009048768A2 Modular connector and method |
| 04/16/2009 | WO2009047646A2 Simulating fluid flow in reservoir with modified grid |
| 04/16/2009 | WO2008076768A3 Casing expansion and formation compression for permeability plane orientation |
| 04/16/2009 | WO2006127892A3 Methods and devices for analyzing and controlling the propagation of waves in a borehole generated by water hammer |
| 04/16/2009 | US20090095529 Measurement Ahead of the Drilling Bit by Analysis of Formation Cuttings Using Ultraviolet Light to Detect the Presence of Oil or Gas |
| 04/16/2009 | US20090095066 Vadose zone pore liquid sampling system |
| 04/16/2009 | CA2702020A1 Modular connector and method |
| 04/16/2009 | CA2696820A1 Coarse wellsite analysis for field development planning |
| 04/15/2009 | EP2048322A2 An assembly for cutting into a well tubular |
| 04/15/2009 | CN201221358Y Anti-theft device of well head sampling valve |
| 04/15/2009 | CN201221357Y High temperature micro spherical focused logging instrument |
| 04/15/2009 | CN201221356Y High temperature dual laterolog equipment |
| 04/15/2009 | CN201221355Y Continuous wave pressure pulse generator |
| 04/15/2009 | CN201221353Y Downhole wireless electromagnetic transmitting apparatus |
| 04/15/2009 | CN201221347Y High-frequency electromagnetic wave logger receiving circuit electric structure |
| 04/15/2009 | CN201221346Y High-frequency electromagnetic wave logger coil array structure |
| 04/15/2009 | CN101408102A Total hydrocarbon intelligent logging system |
| 04/15/2009 | CN101408101A Wellbore telemetry system and method |
| 04/14/2009 | US7516787 Method of developing a subsurface freeze zone using formation fractures |
| 04/14/2009 | US7516785 Method of developing subsurface freeze zone |
| 04/14/2009 | US7516654 Method and apparatus for downhole detection of CO2 and H2S using resonators coated with CO2 and H2S sorbents |
| 04/12/2009 | CA2606628A1 Methods for characterizing heavy oils |
| 04/09/2009 | WO2009045111A1 Apparatus and method for measuring water content and salt concentration in a multiphase fluid flow |
| 04/09/2009 | WO2007146429A3 Portable discrete groundwater sampling system |
| 04/09/2009 | WO2007038413A3 A method and apparatus for elemental analysis of a fluid downhole |
| 04/08/2009 | EP2044289A1 Packer variable volume excluder and sampling method therefor |
| 04/08/2009 | CN201219253Y Electronic switch of radio frequency electronic lock |
| 04/08/2009 | CN201218812Y Pressure releasing buffer of PVT instrument |
| 04/08/2009 | CN201218098Y Over-line protector for logging instrument photomultiplier tube |
| 04/08/2009 | CN201218097Y Electronic lock system supporting external power-on |
| 04/08/2009 | CN101403301A Method for acquiring container layer coarseness area distribution rule |
| 04/08/2009 | CN101403300A Test method for arbitrary section of drill core |
| 04/08/2009 | CN101403299A Energy spectrum graduator and its production technique |
| 04/08/2009 | CN101403298A Double-driving combination logging probe |
| 04/08/2009 | CN101403292A Gas lift method production fluid section plane test technique of mechanical mining horizontal well |
| 04/08/2009 | CN101403291A Preset production fluid section plane test method of mechanical mining horizontal well and special shaft mouth test apparatus |
| 04/08/2009 | CN100476160C Automatic continuous sampling device for oil well |
| 04/07/2009 | US7513752 Beam pump dynamic load monitoring and methods |
| 04/07/2009 | US7513147 Piezocomposite transducer for a downhole measurement tool |
| 04/02/2009 | WO2009042785A2 Sensors for estimating properties of a core |
| 04/02/2009 | WO2009042781A2 Apparatus and methods for continuous tomography of cores |
| 04/02/2009 | WO2009042774A2 Apparatus and methods for continuous coring |
| 04/02/2009 | WO2009042018A1 Variable position gas trap |
| 04/02/2009 | WO2009023852A3 Apparatus and methods for pulse testing a formation |
| 04/02/2009 | US20090084175 Spectroscopic ph measurement using optimized mixtures of reagents to extend measurement range |
| 04/02/2009 | CA2698618A1 Variable position gas trap |
| 04/02/2009 | CA2639621A1 Method and apparatus for logging foam cement in cased boreholes |