| 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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| 06/05/2007 | CA2440494C Method for measuring formation properties with a time-limited formation test |
| 05/31/2007 | WO2007060446A1 Improvements in and relating to hydrocarbon recovery from a hydrocarbon reservoir |
| 05/31/2007 | US20070119587 Dual Piston, Single Phase Sampling Mechanism and Procedure |
| 05/31/2007 | US20070119244 Methods and apparatus for the downhole characterization of formation fluids |
| 05/31/2007 | US20070119243 Integrated logging tool for borehole |
| 05/30/2007 | CN2906063Y Short-space continuous carbon-oxygen spectral logger |
| 05/30/2007 | CN2906062Y Annulus logger confluent-liquid umbrella with protection structure |
| 05/29/2007 | US7222671 Apparatus and method for formation evaluation |
| 05/29/2007 | US7222668 Sample extraction system for boreholes |
| 05/29/2007 | US7222524 Method and apparatus for determining an optimal pumping rate based on a downhole dew point pressure determination |
| 05/24/2007 | US20070114061 Drill Bit Assembly with a Probe |
| 05/24/2007 | US20070114021 Wellbore formation evaluation system and method |
| 05/24/2007 | US20070113638 Single phase sampling apparatus and method |
| 05/24/2007 | US20070113619 Electronic humidity chamber for vapor desorption to determine high capillary pressures |
| 05/23/2007 | EP1788188A1 Wellbore formation evaluation system and method with cooling |
| 05/23/2007 | CN1317484C Cavity water sampling and generating method for oil well in production |
| 05/22/2007 | US7222022 Method of determining properties relating to an underbalanced well |
| 05/22/2007 | US7219541 Method and apparatus for downhole fluid analysis for reservoir fluid characterization |
| 05/22/2007 | CA2401184C Improving reservoir communication with a wellbore |
| 05/18/2007 | WO2007034276A3 Apparatus for downhole fluids analysis utilizing micro electro mechanical systems (mems) or other sensors |
| 05/18/2007 | WO2007020492A3 Spectral imaging for downhole fluid characterization |
| 05/18/2007 | CA2627310A1 Method for mechanical and capillary seal analysis of a hydrocarbon trap |
| 05/17/2007 | US20070112547 Method and system for integrated reservoir and surface facility networks simulations |
| 05/17/2007 | US20070107939 Logging-while-coring method and apparatus |
| 05/17/2007 | US20070107900 Delivery system for downhole use |
| 05/16/2007 | CN2901343Y High density AC electromagnetic measuring resistance rate, instrument |
| 05/16/2007 | CN2900786Y Deuterium-deuterium controlable compensation neutron well logging instrument while drilling |
| 05/16/2007 | CN2900785Y Movable natural Gamma scale well while drilling |
| 05/16/2007 | CN2900784Y Multiple core cable oil well layered test downhole device |
| 05/16/2007 | CN1965249A Surface real-time processing of downhole data |
| 05/15/2007 | US7216725 Soil sampling system and method that allow headspace screening at spaced intervals without disturbing soil sample |
| 05/15/2007 | US7216703 Method and apparatus for testing and treatment of a completed well with production tubing in place |
| 05/15/2007 | US7216702 Methods of evaluating undersaturated coalbed methane reservoirs |
| 05/15/2007 | US7216533 Methods for using a formation tester |
| 05/15/2007 | CA2165524C Method and device for monitoring the variations of the overall saturation of a sample with non-miscible incompressible fluids |
| 05/10/2007 | US20070101808 Single phase fluid sampling apparatus and method for use of same |
| 05/09/2007 | EP1147436B1 Hydrocarbon reservoir testing |
| 05/09/2007 | EP1019459B1 Oil based drilling fluids suitable for drilling in the presence of acidic gases |
| 05/09/2007 | CN2898301Y Microspherical polar plate combined with compensated-density slide board |
| 05/09/2007 | CN2898294Y Pressure-bearing connecting pin for petroleum logging equipment |
| 05/09/2007 | CN1959665A Method for determining abrupt interface of equal interval sequential sampled data |
| 05/09/2007 | CN1959062A Zonation method of thin interbed in low infiltration of fracturing layer segment |
| 05/08/2007 | US7214933 Method and apparatus for a downhole fluorescence spectrometer |
| 05/03/2007 | WO2007048991A1 Downhole sampling apparatus and method for using same |
| 05/03/2007 | US20070100593 Method for constructing a geologic model of a subsurface reservoir |
| 05/03/2007 | US20070095540 Apparatus and method for managed pressure drilling |
| 05/03/2007 | US20070095528 Method of Monitoring Fluid Placement During Stimulation Treatments |
| 05/03/2007 | US20070095096 Downhole sorption cooling and heating in wireline logging and monitoring while drilling |
| 05/03/2007 | CA2626136A1 Downhole sampling apparatus and method for using same |
| 05/02/2007 | EP1779095A1 Analysis of rock formations by means of laser induced plasma spectroscopy |
| 05/02/2007 | EP1714230A4 Reservoir model building methods |
| 05/02/2007 | CN2895713Y Anti-theft sampling work-box for oil well |
| 05/02/2007 | CN1955439A Method for constructing a kinetic model allowing the mass of hydrogen sulfide produced by aquathermolysis to be estimated |
| 05/02/2007 | CN1313703C Experimental apparatus forb simulating seepage flow |
| 05/01/2007 | US7210344 Method for measuring formation properties with a time-limited formation test |
| 05/01/2007 | US7210343 Method and apparatus for obtaining a micro sample downhole |
| 05/01/2007 | US7210342 Method and apparatus for determining gas content of subsurface fluids for oil and gas exploration |
| 05/01/2007 | CA2499340C Downhole sampling tool and method for using same |
| 04/27/2007 | CA2565120A1 Method for constructing a kinetic model for estimating the hydrogen sulfide mass produced by aquathermolysis |
| 04/26/2007 | WO2007047800A2 Apparatus and method for managed pressure drilling |
| 04/25/2007 | EP1625422B1 Formation-based interpretation of nmr data for carbonate reservoirs |
| 04/25/2007 | CN1312377C Apparatus and method for operating drill head from ground surface when drilling |
| 04/25/2007 | CA2566640A1 Formation prioritization optimization |
| 04/24/2007 | USRE39583 Multiple well tool control systems in a multi-valve well testing system having automatic control modes |
| 04/24/2007 | US7207395 Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement |
| 04/24/2007 | US7207216 Hydraulic and mechanical noise isolation for improved formation testing |
| 04/24/2007 | CA2397916C Resistivity and dielectric constant well core measurement system for measurement while drilling and laboratory |
| 04/19/2007 | WO2007042760A1 Methods and systems for determining reservoir properties of subterranean formations |
| 04/19/2007 | WO2007042759A1 Methods and systems for determining reservoir properties of subterranean formations with pre-existing fractures |
| 04/19/2007 | US20070084277 Apparatus and method for detecting fluid entering a wellbore |
| 04/18/2007 | EP1629177B1 Method and apparatus for determining an optimal pumping rate based on a downhole dew point pressure measurement |
| 04/18/2007 | CN2890336Y Micro power consumption electronic lock powered by key |
| 04/17/2007 | US7205762 Downhole high resolution NMR spectroscopy with polarization enhancement |
| 04/17/2007 | US7204323 Clean-Mole™ real-time control system and method for detection and removal of underground minerals, salts, inorganic and organic chemicals utilizing an underground boring machine |
| 04/17/2007 | US7204309 MWD formation tester |
| 04/17/2007 | US7204307 Methods of using settable compositions comprising cement kiln dust |
| 04/17/2007 | CA2186691C Articulated bit-selector coring tool |
| 04/12/2007 | US20070079962 Formation Evaluation System and Method |
| 04/12/2007 | US20070079961 Proppant suspension testing devices and methods of use |
| 04/12/2007 | US20070079960 Well Treatment System and Method |
| 04/12/2007 | CA2620016A1 Methods, systems and apparatus for coiled tubing testing |
| 04/11/2007 | CN2888464Y Dual lateral logger with enhanced focusing |
| 04/11/2007 | CN1947005A Apparatus and methods for acoustically determining fluid properties while sampling |
| 04/11/2007 | CN1946920A Method and apparatus for downhole fluid analysis for reservoir fluid characterization |
| 04/11/2007 | CN1945259A Coal slurry reactant sampling device |
| 04/11/2007 | CN1944957A Electric measuring and identifying method for sandstone oil field oil layer low efficieny and invalid circulation layer during high water content developing period |
| 04/11/2007 | CN1944956A Fluvial phase sand building structure identifying method |
| 04/11/2007 | CN1944955A Electric detection identifying method for sand stone oil field oil layer lower water flooded oil layer during high water content developing period |
| 04/11/2007 | CN1944954A Fine divided describing method for sandstone oil field oil layer water flooded grade during high water content developing period |
| 04/10/2007 | US7201221 Wellbores utilizing fiber optic-based sensors and operating devices |
| 04/03/2007 | US7198105 Apparatus and method for controlling the pressure of fluid within a sample chamber |
| 04/03/2007 | US7197924 Apparatus and method for evaluating subterranean environments |
| 04/03/2007 | US7197923 Single phase fluid sampler systems and associated methods |
| 04/03/2007 | CA2313884C Method for characterization of rock strata in drilling operations |
| 03/29/2007 | WO2007035128A1 Well jet device and the operating method thereof |
| 03/29/2007 | WO2007034273A1 Protective barrier for small devices |
| 03/29/2007 | WO2007034152A1 Apparatus and method for continuous measurement of a physical property of a drilling fluid |
| 03/29/2007 | WO2007034131A1 Electro-chemical sensor |
| 03/29/2007 | CA2623376A1 Well jet device and the operating method thereof |
| 03/29/2007 | CA2623013A1 Apparatus for downhole fluids analysis utilizing micro electro mechanical systems (mems) or other sensors |