Patents
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)
03/2006
03/16/2006DE10116363B4 Bohrkopf einer Bohreinrichtung, insbesondere Spülbohrkopf einer Flachbohreinrichtung Drill a drilling, in particular a power swivel Flachbohreinrichtung
03/15/2006EP1397661A4 Method and apparatus for downhole fluid characterization using flxural mechanical resonators
03/15/2006EP1153320B1 Focused formation fluid sampling probe
03/15/2006CN1245640C Downhole NMR tool having a programmable pulse sequencer
03/14/2006US7012852 Method, apparatus and system for detecting seismic waves in a borehole
03/14/2006US7011155 Formation testing apparatus and method for optimizing draw down
03/14/2006CA2419813C Apparatus and method for synchronized formation measurement
03/10/2006CA2499013A1 Drilling cutting analyzer system and methods of applications
03/08/2006EP1631732A1 A method and apparatus for an advanced optical analyzer
03/08/2006EP1512152A4 Method and apparatus for mwd formation testing
03/08/2006CN2763511Y Theft-proof oil sampler
03/08/2006CN2763490Y Valve for sampling in bore top for pumping well
03/08/2006CN1743644A Formation evaluation system and method
03/08/2006CA2518477A1 Microfluidic separator
03/07/2006US7008793 Method and device for taking a sample of an emulsion circulating in a line
03/02/2006US20060042793 Apparatus and method for formation evaluation
03/02/2006US20060042791 Tubing running equipment for offshore rig with surface blowout preventer
03/02/2006US20060042370 Determination of correct horizontal and vertical permeabilities in a deviated well
03/02/2006US20060042369 Accuracy of shaly sand formation evaluation
03/01/2006EP1629177A1 Method and apparatus for determining an optimal pumping rate based on a downhole dew point pressure measurement
03/01/2006EP1511914A4 Equalizer valve and method of use
03/01/2006CN1740517A Well logging method and instrument based on HF array electromagnetic wave propagation
03/01/2006CN1740516A Method of predicting deep oil-gas layer based on benzene and toluene abnormality of well drilling back gas
02/2006
02/28/2006US7006959 Method and system for simulating a hydrocarbon-bearing formation
02/28/2006US7006918 Method for stress and stability related measurements in boreholes
02/28/2006US7004252 Multiple zone testing system
02/28/2006US7004020 Production profile determination and modification system
02/23/2006WO2006020952A2 A highly-parallel, implicit compositional reservoir simulator for multi-million-cell models
02/23/2006US20060037780 Coring tubular and method for reducing contamination and processing speed of a core sample
02/22/2006EP1627298A2 Compositional modeling and pyrolysis data analysis methods
02/21/2006US7002142 Determining dew precipitation and onset pressure in oilfield retrograde condensate
02/21/2006US7000697 Downhole measurement apparatus and technique
02/16/2006WO2005122313A3 Method and apparatus for performing chemical treatments of exposed geological formations
02/15/2006EP1625422A2 Formation-based interpretation of nmr data for carbonate reservoirs
02/14/2006US6998845 Process and device for assessing the permeability of a rock medium
02/14/2006US6997270 Compounds and method for generating a highly efficient membrane in water-based drilling fluids
02/14/2006US6997258 Apparatus and methods for pressure compensated contact with the borehole wall
02/14/2006CA2487186C Method and apparatus for installing electronic equipment below soft earth surface layer
02/14/2006CA2180881C Packer type groundwater sampling system and water sampling method
02/09/2006DE102005030559A1 Vorrichtung und Verfahren zum Charakterisieren einer unterirdischen Formation und Vorrichtung und Verfahren zum Perforieren eines verrohrten Bohrlochs An apparatus and method for characterizing a subterranean formation, and apparatus and methods for perforating a cased borehole
02/08/2006EP1623091A2 A method and apparatus for a downhole micro-sampler
02/08/2006EP1623090A1 Formation testing apparatus and method for optimizing draw down
02/07/2006US6995684 Retrievable subsurface nuclear logging system
02/07/2006US6995360 Method and sensor for monitoring gas in a downhole environment
02/07/2006US6994161 In situ thermal processing of a coal formation with a selected moisture content
02/07/2006US6993963 Method for determining pressure profiles in wellbores, flowlines and pipelines, and use of such method
02/07/2006CA2197962C Apparatus and method for sampling an earth formation through a cased borehole
02/05/2006CA2496228A1 Microgranulometry and methods of applications
02/02/2006WO2006012186A1 Drilling systems and methods utilizing independently deployable multiple tubular strings
02/02/2006US20060021796 Device and method for collecting borehole samples
02/01/2006EP1621724A2 Methods of downhole testing subterranean formations and associated apparatus therefor
02/01/2006EP1620631A1 Continuous data recorder for a downhole sample tank
02/01/2006CN1239809C Method for predetermining subfloor temp
01/2006
01/31/2006US6992768 Optical fluid analysis signal refinement
01/26/2006WO2006008155A1 Analysis of rock formations by means of laser induced plasma spectroscopy
01/26/2006WO2005089399A3 A method and apparatus for downhole fluid analysis for reservoir fluid characterization
01/26/2006US20060020438 Method and system for simulating a hydrocarbon-bearing formation
01/26/2006US20060016595 Downhole Measurement System and Method
01/26/2006US20060016594 Methods to detect formation pressure
01/26/2006DE102005029349A1 Drahtleitungsgebundene Anordnung, Verfahren zum Beurteilen einer unterirdischen Formation, Bohrloch-Werkzeug und Verfahren zur Probennahme in einem Bohrloch Conducted wire assembly method for evaluating a subterranean formation downhole tool and method for sampling in a borehole
01/26/2006CA2574867A1 Analysis of rock formations by means of laser induced plasma spectroscopy
01/26/2006CA2574479A1 Method and apparatus for estimating a permeability distribution during a well test
01/25/2006EP1619520A1 Method and apparatus for estimating a permeability distribution during a well test
01/25/2006EP1618284A2 Device for analysing at least one gas contained in a liquid, particularly bore fluid
01/25/2006CN2753881Y Electronic-sensing type well-diameter micro electrode combined logging instrument
01/24/2006US6988566 Acoustic position measurement system for well bore formation
01/24/2006US6988547 Method and system of fluid analysis and control in hydrocarbon well
01/24/2006US6988417 Displacement and force sensor
01/24/2006CA2180883C Hydraulic test system mounted with borehole television set for simultaneous observation in front and lateral directions
01/21/2006CA2671526A1 Controlling transient pressure conditions in a wellbore
01/21/2006CA2671521A1 Controlling transient pressure conditions in a wellbore
01/19/2006WO2006005555A1 Sensor system
01/19/2006CA2572999A1 Sensor system
01/18/2006CN1721654A Downhole formation testing tool
01/17/2006US6986292 Method for determining the power of a test specimen and power test bench for the test specimen
01/17/2006US6986282 Method and apparatus for determining downhole pressures during a drilling operation
01/12/2006WO2005072430A3 Probe isloation seal pad
01/12/2006US20060008913 Microfluidic separator
01/12/2006US20060005965 Sensor system
01/11/2006EP1502005A4 Method and apparatus for determining drill string movement mode
01/11/2006EP1502004A4 System and method for interpreting drilling data
01/11/2006EP1502003A4 Method for improving drilling depth measurements
01/11/2006EP1012443B1 Subsurface measurement apparatus, system, and process for improved well drilling, control, and production
01/11/2006CN1719000A Lithology density well logging instrument
01/10/2006US6983803 Equalizer valve and associated method for sealing a fluid flow
01/10/2006CA2361879C Sample chamber with dead volume flushing
01/10/2006CA2278933C Tool and method for drilling a lateral well
01/10/2006CA2247332C Downhole core sampling and testing apparatus
01/05/2006WO2006002223A1 Drilling wellbores with optimal physical drill string conditions
01/05/2006WO2006001734A1 Ejector multipurpose formation tester for horizontal wells and the operating method thereof
01/05/2006US20060000606 Apparatus and method for characterizing a reservoir
01/05/2006US20060000603 Formation evaluation system and method
01/04/2006CN1715614A Apparatus and method for characterizing a reservoir
12/2005
12/29/2005US20050284666 Geosynthetic composite for borehole strengthening
12/29/2005US20050284661 Method and system for predicting performance of a drilling system for a given formation
12/29/2005US20050284629 Downhole formation testing tool
12/29/2005DE102005024628A1 Verfahren zum Bestimmen einer Eigenschaft einer Formationsflüssigkeit sowie ein NMR-Sensor hierfür A method for determining a property of a formation fluid and a NMR sensor for this purpose
12/29/2005CA2794316A1 Methods and apparatus for measuring streaming potentials and determining earth formation characteristics
12/29/2005CA2793786A1 Methods and apparatus for measuring streaming potentials and determining earth formation characteristics
12/28/2005EP1608844A2 Formation testing and sampling apparatus and methods
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