| 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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| 05/30/2006 | US7053611 Method and apparatus for using pulsed field gradient NMR measurements to determine fluid properties in a fluid sampling well logging tool |
| 05/30/2006 | US7051587 Traction apparatus |
| 05/30/2006 | CA2527331A1 Lifetime pulsed neutron/chlorine combination logging tool |
| 05/24/2006 | EP1509758B1 Apparatus and method for analyzing well fluid sag |
| 05/24/2006 | CA2527297A1 A probe for measuring the electromagnetic properties of a down-hole material |
| 05/18/2006 | WO2002018747A9 Method of determining fluid flow |
| 05/18/2006 | US20060102345 Method of estimating fracture geometry, compositions and articles used for the same |
| 05/18/2006 | US20060102344 Methods of initiating a fracture tip screenout |
| 05/18/2006 | US20060102343 Drilling, perforating and formation analysis |
| 05/18/2006 | US20060101916 Method and apparatus for ultrasound velocity measurements in drilling fluids |
| 05/18/2006 | US20060101905 Method and apparatus for balanced pressure sampling |
| 05/17/2006 | CN1773077A Lithologic density logging instrument |
| 05/17/2006 | CN1256578C Whole reservior sampling tester |
| 05/17/2006 | CN1256504C Method for determining in- situ effective mobility and the effective permeability of a formation |
| 05/17/2006 | CN1256503C Method for measuring stratigraphic in situ static temperature |
| 05/11/2006 | WO2006048418A1 Method and system for production metering of oil wells |
| 05/11/2006 | WO2006048210A1 Method and apparatus for well treatment |
| 05/11/2006 | DE102005052495A1 Aufblasbare Dichtungsbaueinheit und Verfahren zum Entfalten eines Paars voneinander beabstandeter, aufblasbarer Dichtungen Inflatable seal assembly and method for unfolding a pair of spaced apart, inflatable seals |
| 05/11/2006 | DE102004053111B3 Probennahmegerät zur simultanen Sammlung von Porenwasser aus benachbarten aquatischen Sedimentbereichen und Anwendung davon Sampling device for the simultaneous collection of pore water from adjacent aquatic sediment areas and application thereof |
| 05/11/2006 | CA2585061A1 Method and apparatus for well treatment |
| 05/11/2006 | CA2583029A1 Method and system for production metering of oil wells |
| 05/10/2006 | CN2779065Y Multifunctional lock valve pressure testing and sampling device |
| 05/10/2006 | CN2779063Y Pressure balance type mechanical pushing device |
| 05/09/2006 | US7040399 In situ thermal processing of an oil shale formation using a controlled heating rate |
| 05/09/2006 | US7040390 Wellbores utilizing fiber optic-based sensors and operating devices |
| 05/09/2006 | US7040157 Variable depth automated dynamic water profiler |
| 05/09/2006 | CA2250185C Method of regulating drilling conditions applied to a well bit |
| 05/04/2006 | WO2006046851A1 Movable supporting construction |
| 05/04/2006 | WO2006020952A3 A highly-parallel, implicit compositional reservoir simulator for multi-million-cell models |
| 05/04/2006 | US20060090894 Apparatus for the simultaneous collection of pore water specimens from adjacent areas of aquatic sediments |
| 05/04/2006 | US20060090578 Locating apparatus and system |
| 05/03/2006 | EP1653043A1 Method and apparatus for well treatment |
| 05/03/2006 | EP1653040A1 Downhole tool and method for use of the same |
| 05/03/2006 | EP1651952A1 System and method for sensing using diamond based microelectrodes |
| 05/03/2006 | CN1766284A Stratum pressure recognition method by abnormal fluid immersing into well bore |
| 05/02/2006 | US7036594 Controlling a pressure transient in a well |
| 05/02/2006 | US7036579 Method for measuring formation properties with a time-limited formation test |
| 05/02/2006 | US7036363 Acoustic sensor for downhole measurement tool |
| 05/02/2006 | US7036362 Downhole determination of formation fluid properties |
| 04/27/2006 | WO2006044350A2 Apparatus and method for hard rock sidewall coring of a borehole |
| 04/27/2006 | WO2005074592A3 Reservoir model building methods |
| 04/26/2006 | EP1263653B1 Integrated reservoir optimization |
| 04/26/2006 | CN2775303Y Storage type gamma logging instrument |
| 04/26/2006 | CN1253646C Method for sampling an earth formation through a cased borehole |
| 04/25/2006 | US7035778 Method of assaying downhole occurrences and conditions |
| 04/25/2006 | US7032689 Method and system for predicting performance of a drilling system of a given formation |
| 04/25/2006 | US7032661 Method and apparatus for combined NMR and formation testing for assessing relative permeability with formation testing and nuclear magnetic resonance testing |
| 04/25/2006 | US7032444 Module for extracting gas from an underground liquid and installation equipped therewith |
| 04/20/2006 | US20060081398 Apparatus and method for hard rock sidewall coring of a borehole |
| 04/19/2006 | CN1761868A A method and apparatus for downhole quantification of methane using near infrared spectroscopy |
| 04/19/2006 | CN1760509A Pulse neutron logging instrument |
| 04/19/2006 | CN1760508A Well logger of nuclear magnetic resonance |
| 04/19/2006 | CN1760507A Well logger of natural ganmma energy specntrum |
| 04/18/2006 | US7031841 Method for determining pressure of earth formations |
| 04/18/2006 | US7028773 Assessing downhole WBM-contaminated connate water |
| 04/18/2006 | US7028772 Treatment well tiltmeter system |
| 04/18/2006 | US7028771 Hydrocarbon recovery |
| 04/13/2006 | WO2006039513A1 Method and apparatus for acquiring physical properties of fluid samples |
| 04/13/2006 | US20060076162 Self cleaning coring bit |
| 04/13/2006 | US20060076161 Apparatus and method of identifying rock properties while drilling |
| 04/13/2006 | US20060076132 Apparatus and method for formation evaluation |
| 04/13/2006 | US20060075813 Apparatus and method for drawing fluid into a downhole tool |
| 04/13/2006 | US20060075801 Device for preparing a fluid particularly a drilling mud, associated preparation method and associated analysis unit |
| 04/13/2006 | DE102005048332A1 Vorrichtung und Verfahren zur Formationsbewertung Apparatus and method for formation evaluation |
| 04/12/2006 | CN1759229A A method and apparatus for pumping quality control through formation rate analysis |
| 04/12/2006 | CN1757881A Apparatus and method for formation evaluation |
| 04/12/2006 | CN1757878A Construction method of optical fiber television logging instrument for detecting fish top detection |
| 04/12/2006 | CN1250982C Downhole NMR tool having a programmable pulse sequencer |
| 04/12/2006 | CN1250862C Actuation of downhole device and operation method |
| 04/11/2006 | US7027926 Enhanced measurement of azimuthal dependence of subterranean parameters |
| 04/11/2006 | US7025138 Method and apparatus for hydrogen sulfide monitoring |
| 04/11/2006 | US7024930 Method for measuring formation properties with a time-limited formation test |
| 04/11/2006 | CA2522864A1 Device for preparing a fluid, in particular a drilling fluid, process for preparing it and all of the related analyses |
| 04/07/2006 | CA2519822A1 Apparatus and method of identifying rock properties while drilling |
| 04/06/2006 | WO2006008172A3 Method and apparatus for estimating a permeability distribution during a well test |
| 04/06/2006 | WO2005114542A3 Methods for evaluating and improving drilling operations |
| 04/06/2006 | WO2005033739A3 Characterizing connectivity in reservoir models using paths of least resistance |
| 04/06/2006 | US20060070433 Borehole caliper tool using ultrasonic transducer |
| 04/06/2006 | US20060070432 Gravity techniques for drilling and logging |
| 04/06/2006 | CA2581535A1 Apparatus and method for wireline imaging in nonconductive muds |
| 04/05/2006 | EP1116350B1 Drill string telemetry with insulator between receiver and transmitter |
| 04/04/2006 | US7021405 Determining gradients using a multi-probed formation tester |
| 04/04/2006 | US7021375 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 03/29/2006 | EP1552274A4 Borehole conductivity profiler |
| 03/28/2006 | US7020597 Methods for evaluating and improving drilling operations |
| 03/23/2006 | DE102005041248A1 Vorrichtung und Verfahren zur Formationsbewertung Apparatus and method for formation evaluation |
| 03/23/2006 | DE102004041334B3 Bore-related isobaric extraction device for groundwater samples has specimen transport device for isobaric accommodation of the specimen with a rigid housing containing a flexible bag |
| 03/22/2006 | CN1246569C Retrieving a sample of formation fluid in a cased hole |
| 03/21/2006 | US7013993 Method of coring crustal core sample, and antimicrobial polymeric gel and gel material used in the method |
| 03/21/2006 | US7013745 Unattended ground sensor assembly |
| 03/21/2006 | US7013724 Method for characterizing parameters of wells, well bottom zone and formation, and device for carrying out said method |
| 03/21/2006 | US7013723 Apparatus and methods for canceling the effects of fluid storage in downhole tools |
| 03/21/2006 | CA2386988C Virtual steering of induction tool attenuation and phase difference measurements |
| 03/20/2006 | CA2499862A1 Mini core in drilling samples for high resolution formation evaluation on drilling cuttings samples |
| 03/20/2006 | CA2499762A1 Formation gas pore pressure evaluation on drilling cuttings samples |
| 03/17/2006 | CA2499767A1 Horizontal binocular microscope for vertically gravitated and floating samples |
| 03/16/2006 | US20060054501 Methods and apparatus for the measurement of hydrogen sulphide and thiols in fuids |
| 03/16/2006 | US20060054358 Coring bit with uncoupled sleeve |
| 03/16/2006 | US20060054323 Apparatus and method for controlling the pressure of fluid within a sample chamber |
| 03/16/2006 | US20060053877 Apparatus and method for evaluating subterranean environments |