| 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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| 12/28/2005 | CN2748637Y Hydraulic low shearing sampler |
| 12/28/2005 | CN1712993A Device and method for determining mud slowness in a borehole |
| 12/28/2005 | CN1712669A Microsphere logging instrument by digital focus |
| 12/27/2005 | US6980940 Intergrated reservoir optimization |
| 12/27/2005 | US6978833 Methods, apparatus, and systems for obtaining formation information utilizing sensors attached to a casing in a wellbore |
| 12/27/2005 | US6978688 Semipermeable membrane-based sampling systems |
| 12/27/2005 | US6978672 Wireline apparatus for measuring steaming potentials and determining earth formation characteristics |
| 12/27/2005 | CA2329719C Near wellbore modeling method and apparatus |
| 12/22/2005 | WO2005122313A2 Method and apparatus for performing chemical treatments of exposed geological formations |
| 12/22/2005 | WO2005114134A3 Downhole probe assembly |
| 12/22/2005 | US20050279532 Drilling wellbores with optimal physical drill string conditions |
| 12/22/2005 | US20050279499 Downhole sampling tool and method for using same |
| 12/22/2005 | US20050279497 Completion apparatus for measuring streaming potentials and determining earth formation characteristics |
| 12/22/2005 | US20050279161 Wireline apparatus for measuring streaming potentials and determining earth formation characteristics |
| 12/22/2005 | CA2568593A1 Method and apparatus for performing chemical treatments of exposed geological formations |
| 12/21/2005 | EP1266121B1 Methods for improving oil production |
| 12/20/2005 | US6978210 Method for automated management of hydrocarbon gathering systems |
| 12/20/2005 | US6977499 Formation-based interpretation of NMR data for carbonate reservoirs |
| 12/20/2005 | US6977367 Providing a light cell in a wellbore |
| 12/20/2005 | US6976386 Tensiometer methods |
| 12/15/2005 | US20050274509 System for reducing adhesion and cohesion between non metallic bailers and side wall of wells |
| 12/14/2005 | EP1605242A1 System for the use of an apparatus for taking samples in the ground or a granular or pulverulent material |
| 12/14/2005 | EP1604187A1 A method and apparatus for downhole quantification of methane using near infrared spectroscopy |
| 12/14/2005 | CN1707290A Method and apparatus for using pulsed field gradient NMR measurements to determine fluid properties in a fluid sampling well logging tool |
| 12/08/2005 | US20050270023 Method and apparatus for using pulsed field gradient NMR measurements to determine fluid properties in a fluid sampling well logging tool |
| 12/08/2005 | US20050269499 Method and sensor for monitoring gas in a downhole environment |
| 12/08/2005 | US20050269132 Laser spectroscopy/chromatography drill bit and methods |
| 12/08/2005 | US20050269080 Method and apparatus for performing chemical treatments of exposed geological formations |
| 12/08/2005 | US20050268709 Methods for using a formation tester |
| 12/07/2005 | EP1601858A2 A method and apparatus for pumping quality control through formation rate analysis |
| 12/07/2005 | EP1478824A4 Well system |
| 12/07/2005 | EP1064452B1 Formation testing apparatus and method |
| 12/07/2005 | CN2744831Y Laterolog tool flexible lengthened electrode and measurement electrode series for side-tracking in horizontal well |
| 12/06/2005 | US6971260 Overburden rock core sample containment system |
| 12/01/2005 | WO2005114542A2 Methods for evaluating and improving drilling operations |
| 12/01/2005 | WO2005114134A2 Downhole probe assembly |
| 12/01/2005 | WO2005113938A2 Methods for using a formation tester |
| 12/01/2005 | WO2005113937A2 Methods and apparatus for measuring formation properties |
| 12/01/2005 | WO2005113935A2 Methods and apparatus for using formation property data |
| 12/01/2005 | WO2005086699A3 Downhole formation sampling |
| 12/01/2005 | DE102005021230A1 Resistivitätswerkzeug Resistivitätswerkzeug |
| 12/01/2005 | CA2567656A1 Methods for evaluating and improving drilling operations |
| 11/30/2005 | CN1702297A Array induction logging instrument |
| 11/30/2005 | CN1702296A Electrode system of strong focusing dual laterolog equipment |
| 11/29/2005 | US6968909 Realtime control of a drilling system using the output from combination of an earth model and a drilling process model |
| 11/28/2005 | CA2468652A1 Fluid sampling device |
| 11/24/2005 | US20050257960 Methods and apparatus for using formation property data |
| 11/24/2005 | US20050257611 Methods and apparatus for measuring formation properties |
| 11/23/2005 | EP1597455A1 Radially adjustable downhole devices & methods for the same |
| 11/22/2005 | US6968274 Use of cutting velocities for real time pore pressure and fracture gradient prediction |
| 11/22/2005 | US6966377 Providing a low pressure condition in a wellbore region |
| 11/22/2005 | US6966234 Real-time monitoring and control of reservoir fluid sample capture |
| 11/17/2005 | WO2004099552A3 Determining gradients using a multi-probed formation tester |
| 11/17/2005 | US20050256642 [method of correcting triaxial induction arrays for borehole effect] |
| 11/17/2005 | US20050252312 System for using a device for picking up samples in a soil or material with powdery or granular nature |
| 11/17/2005 | US20050252286 Method and system for reservoir characterization in connection with drilling operations |
| 11/17/2005 | CA2507564A1 System for using a device for taking samples from a soil or material of granular or powdery composition |
| 11/16/2005 | CN1696702A Fluids chain-of-custody |
| 11/16/2005 | CN1696473A Formation imaging while drilling in non-conductive mud |
| 11/15/2005 | US6964301 Method and apparatus for subsurface fluid sampling |
| 11/12/2005 | CA2811046A1 Method and system for reservoir characterization in connection with drilling operations |
| 11/12/2005 | CA2506991A1 Method and system for reservoir characterization in connection with drilling operations |
| 11/10/2005 | US20050247119 Method and apparatus for downhole fluid characterization using flexural mechanical resonators |
| 11/09/2005 | EP1592989A1 Method for computing complexity, confidence and technical maturity indices for reservoir evaluations |
| 11/09/2005 | CN1693893A Method for determining properties of formation fluids |
| 11/08/2005 | US6962198 Groundwater well sample device |
| 11/08/2005 | CA2485840C Safeguarded method and apparatus for fluid communication using coiled tubing, with application to drill stem testing |
| 11/08/2005 | CA2378186C Method and apparatus for retaining a core sample within a coring tool |
| 11/03/2005 | WO2005104003A1 Method for constructing a geologic model of a subsurface reservoir |
| 11/03/2005 | WO2005071224A3 Measuring device and drilling device for deep drillings |
| 11/03/2005 | WO2005048664B1 High temperature circuits |
| 11/03/2005 | US20050246131 Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces |
| 11/03/2005 | US20050242807 Method for determining properties of formation fluids |
| 11/03/2005 | US20050241382 System for detecting gas in a wellbore during drilling |
| 11/03/2005 | CA2779594A1 Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces |
| 11/03/2005 | CA2779579A1 Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces |
| 11/03/2005 | CA2779567A1 Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces |
| 11/03/2005 | CA2779462A1 Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces |
| 11/03/2005 | CA2555751A1 Method for constructing a geologic model of a subsurface reservoir |
| 11/02/2005 | EP1427912A4 Dual piston single phase sampling mechanism and procedure |
| 11/02/2005 | CN1690357A Openhole perforating device |
| 11/01/2005 | CA2278932C Tool for making an opening in a tubular in a wellbore |
| 10/30/2005 | CA2500629A1 Method for determining properties of formation fluids |
| 10/27/2005 | WO2005100978A1 Apparatus and methods for acoustically determining fluid properties while sampling |
| 10/27/2005 | US20050235745 Methods for measuring a formation supercharge pressure |
| 10/27/2005 | CA2562086A1 Dynamic logging speed |
| 10/27/2005 | CA2560100A1 Apparatus and methods for acoustically determining fluid properties while sampling |
| 10/26/2005 | CN2736533Y Wellhead sampling valve for pumping well |
| 10/26/2005 | CN1224775C Apparatus for determining fluid contact level in formation |
| 10/25/2005 | US6958610 Method and apparatus measuring electrical anisotropy in formations surrounding a wellbore |
| 10/25/2005 | US6957709 Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation |
| 10/25/2005 | US6957700 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties |
| 10/25/2005 | US6957572 Apparatus and methods for measuring mud slowness in a borehole |
| 10/20/2005 | US20050234648 Method for stress and stability related measurements in boreholes |
| 10/20/2005 | US20050234647 Enhanced measurement of azimuthal dependence of subterranean parameters |
| 10/19/2005 | EP1554462A4 Apparatus and method of monitoring and signaling for downhole tools |
| 10/18/2005 | US6957145 Methods for determining characteristics of earth formations |
| 10/13/2005 | WO2005095757A1 Methods and apparatus for estimating physical parameters of reservoirs using pressure transient fracture injection/falloff test analysis |
| 10/13/2005 | WO2005095756A1 Methods and an apparatus for detecting fracture with significant residual width from previous treatments |
| 10/13/2005 | US20050224228 Method and apparatus for isolating and testing zones during reverse circulation drilling |