| 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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| 02/18/2010 | WO2009128977A3 Fiber optic sensor system using white light interferometery |
| 02/18/2010 | WO2009117470A4 Downhole fluid characterization based on changes in acoustic properties |
| 02/18/2010 | US20100038135 System and method for evaluation of structure-born sound |
| 02/18/2010 | CA2734461A1 Multiphase drilling systems and methods |
| 02/17/2010 | EP2154705A1 Method for measuring adsorbed and interstitial fluids |
| 02/17/2010 | CN201407039Y Integral-type non-joint static penetration-testing probe rod |
| 02/17/2010 | CN201407038Y Electronic door locking device and door |
| 02/17/2010 | CN201407037Y Novel densitometer probe |
| 02/17/2010 | CN201406994Y Device for evaluating performance of sand preventing tube |
| 02/17/2010 | CN101649739A Method for improving measurement precision of stratum specific resistance |
| 02/17/2010 | CN101649738A Method for determining stratum water saturation |
| 02/17/2010 | CN100590637C Characterizing connectivity in reservoir models using paths of least resistance |
| 02/15/2010 | CA2638697A1 Methods for determining in situ the viscosity of heavy oil using nuclear magnetic resonance relaxation time measurements |
| 02/11/2010 | WO2010017557A1 Method for testing an engineered geothermal system using one stimulated well |
| 02/11/2010 | WO2010015248A2 Method and device for monitoring and determining the ground stress |
| 02/11/2010 | WO2009126570A3 Method of finite-element discretization in heterogeneous and highly conductive grid cells |
| 02/11/2010 | US20100032211 Drilling apparatus for use in mining |
| 02/10/2010 | EP2150683A1 Automated field development planning of well and drainage locations |
| 02/10/2010 | EP1355169B1 Method and apparatus for controlling chemical injection of a surface treatment system |
| 02/10/2010 | CN201401164Y Intelligent sampling device for high-temperature liquid production of oil well |
| 02/10/2010 | CN101644154A Formation evaluation tool (FET) |
| 02/06/2010 | CA2638595A1 Methods for determining in situ the viscosity of heavy oil |
| 02/04/2010 | WO2010014517A2 In-situ refraction apparatus and method |
| 02/04/2010 | WO2010012975A1 Flow-through apparatus for testing particle laden fluids and methods of making and using same |
| 02/04/2010 | US20100025112 In-situ refraction apparatus and method |
| 02/04/2010 | CA2731655A1 Flow-through apparatus for testing particle laden fluids and methods of making and using same |
| 02/03/2010 | CN201396154Y Gas drilling well site sample gas filter |
| 02/03/2010 | CN201396153Y Multi-time underground sampling device |
| 02/03/2010 | CN201396130Y Oil deposit developing simulation system |
| 02/03/2010 | CN201396112Y Large-latus rectum underground test valve |
| 02/03/2010 | CN201396097Y Eccentric wellhead for well test |
| 02/03/2010 | CN100587226C Cement interface shearing in annulus supersonic testing method |
| 02/02/2010 | US7654321 Formation fluid sampling apparatus and methods |
| 02/02/2010 | CA2545395C Well jet device for logging horizontal wells and the operating method thereof |
| 01/28/2010 | WO2009108254A4 Apparatus and method for sampling downhole fluids |
| 01/28/2010 | US20100018704 Formation fluid sampling apparatus and methods |
| 01/28/2010 | US20100018303 Permanently installed in-well fiber optic accelerometer-based sensing apparatus and associated method |
| 01/27/2010 | CN201391318Y Combined device for measuring pressure and sampling |
| 01/27/2010 | CN201391311Y Adaptive reducing backup device |
| 01/26/2010 | US7650937 Formation testing and sampling apparatus and methods |
| 01/26/2010 | CA2521209C Apparatus and method for drawing fluid into a downhole tool |
| 01/21/2010 | WO2010009031A2 Method of ranking geomarkers and compositional allocation of wellbore effluents |
| 01/21/2010 | WO2010008994A2 Formation evaluation instrument and method |
| 01/21/2010 | WO2010008684A2 Apparatus and methods for characterizing a reservoir |
| 01/21/2010 | WO2009146127A3 Tool and method for evaluating fluid dynamic properties of a cement annulus surrounding a casing |
| 01/21/2010 | US20100012383 High productivity core drilling system |
| 01/21/2010 | CA2730532A1 Formation evaluation instrument and method |
| 01/20/2010 | EP2145210A1 Inverse-vector method for smoothing dips and azimuths |
| 01/20/2010 | CN201386559Y Testing oil burning arm |
| 01/20/2010 | CN201386558Y Seismic while drilling quality monitoring device |
| 01/20/2010 | CN201386552Y Device for automatically controlling grouting of drilling and workover operation |
| 01/19/2010 | US7647966 Method for drainage of heavy oil reservoir via horizontal wellbore |
| 01/19/2010 | US7647965 Method and apparatus for insulating a resonator downhole |
| 01/19/2010 | CA2433770C Sampling of hydrocarbons from geological formations |
| 01/14/2010 | WO2010006329A2 Monte carlo method for laplace inversion of nmr data |
| 01/14/2010 | WO2008144164A8 Reusable filters for fluid loss measurements of drilling fluids |
| 01/14/2010 | WO2008063945A3 Downhole measurment of substances in earth formations |
| 01/14/2010 | CA2730512A1 Monte carlo method for laplace inversion of nmr data |
| 01/13/2010 | EP2143877A1 Apparatus for constructing a target core from unconsolidated sand and method for use of same |
| 01/13/2010 | EP2142749A2 Bit for drilling wells and associated drilling method |
| 01/13/2010 | EP2013447B1 Method for production metering of oil wells |
| 01/13/2010 | CN201381855Y Small-sized high-speed electric degassing machine |
| 01/13/2010 | CN201381845Y Wellhead oil-water separation device |
| 01/12/2010 | US7644611 Downhole fluid analysis for production logging |
| 01/12/2010 | US7644610 Automated formation fluid clean-up to sampling switchover |
| 01/12/2010 | CA2568342C Formation evaluation while drilling |
| 01/07/2010 | WO2010001216A2 Methods and apparatus for removing deposits on components in a downhole tool |
| 01/07/2010 | WO2010000055A1 Method and apparatus for on-site drilling cuttings analysis |
| 01/07/2010 | WO2010000040A1 Drill cutting sampling assembly |
| 01/07/2010 | WO2009120790A3 A four-terminal electric imager for resistive muds with localized current control |
| 01/07/2010 | WO2009108394A3 Monitoring of reservoir fluid moving along flow pathways in a producing oil field using passive seismic emissions |
| 01/07/2010 | WO2009102526A4 Methods for the identification of bubble point pressure |
| 01/07/2010 | US20100000792 Method to detect coring point from resistivity measurements |
| 01/07/2010 | US20100000791 Method to detect formation pore pressure from resistivity measurements ahead of the bit during drilling of a well |
| 01/07/2010 | US20100000731 Magnetic Stirrer |
| 01/07/2010 | US20100000108 Core barrel capacity gauge |
| 01/06/2010 | EP2140098A1 Running tool for expandable liner hanger and associated methods |
| 01/05/2010 | US7640982 Method of injection plane initiation in a well |
| 12/30/2009 | WO2009137398A3 System, program product and methods for performing automated real-time oil reservoir pressure estimation |
| 12/30/2009 | WO2009108742A3 Apparatus and methods for setting one or more packers in a well bore |
| 12/30/2009 | WO2009088816A3 Systems and methods for well data analysis |
| 12/30/2009 | CN201372795Y Condensate gas well wellhead sampling device |
| 12/30/2009 | CN201372794Y Tailings dam vadose exploration drill hole maintaining device |
| 12/30/2009 | CN101617101A Automated field development planning of well and drainage locations |
| 12/30/2009 | CN100575663C Downhole sampling apparatus and method for using same |
| 12/30/2009 | CA2670361A1 Methods and apparatus of downhole fluids analysis |
| 12/30/2009 | CA2638405A1 Method and apparatus for on-site drilling cuttings analysis |
| 12/29/2009 | CA2567928C Wellbore formation evaluation system and method |
| 12/27/2009 | CA2669937A1 Method for constructing a hybrid grid from a cpg-type grid |
| 12/24/2009 | US20090319307 Methods of Evaluating Undersaturated Coalbed Reservoirs |
| 12/24/2009 | US20090314545 Core sample orientation |
| 12/23/2009 | WO2009155268A2 Positive sidewall core sample identification system |
| 12/23/2009 | WO2009117470A3 Downhole fluid characterization based on changes in acoustic properties |
| 12/23/2009 | EP2134921A1 A core orientation tool |
| 12/23/2009 | CN201367904Y Large sampling cylinder for reservoir drilling halfway tester |
| 12/23/2009 | CN201367903Y Segmented bond tool |
| 12/23/2009 | CN201367898Y 31-core flexible joint |
| 12/23/2009 | CN201367897Y Hydraulic oil volume compression coefficient test device |
| 12/23/2009 | CN201367896Y Logging winch intelligent safety control system |
| 12/23/2009 | CN101608545A Method and device for testing gas migration process in coal rock body |