| 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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| 12/04/2002 | EP1262775A1 Method and device for soil sampling |
| 12/04/2002 | CN2523951Y Sucking head for thick oil in deep well |
| 12/03/2002 | US6487920 Situ soil sampling probe system with heated transfer line |
| 12/03/2002 | CA2197964C Method and apparatus for drilling with a flexible shaft while using hydraulic assistance |
| 11/28/2002 | WO2002095188A1 A method of controlling the direction of propagation of injection fractures in permeable formations |
| 11/21/2002 | WO2002093126A2 Method and apparatus for downhole fluid characterization using flxural mechanical resonators |
| 11/21/2002 | US20020171560 Reservoir management system and method |
| 11/20/2002 | EP1257730A1 Apparatus and method for controlling well fluid sample pressure |
| 11/14/2002 | US20020166818 Continuous detection, at any point of a pipe carrying a multiphase mixture of petroleum fluids, of thermodynamic hydrate formation conditions using a mechanistic hydrodynamic module and an integrated compositional module |
| 11/14/2002 | US20020166663 Sampling instruments for low-yield wells |
| 11/13/2002 | EP1256693A1 Method for determining by means of digital simulation the conditions of restoration, using reservoir fluids, of wells damaged by drilling operations |
| 11/13/2002 | EP1256692A1 Drilling method and means for a direct survey of geotechnical parameters |
| 11/12/2002 | US6480118 Method of drilling in response to looking ahead of drill bit |
| 11/12/2002 | US6478096 Apparatus and method for formation testing while drilling with minimum system volume |
| 11/09/2002 | CA2383289A1 Method for determining via digital simulation of the conditions for restoring, with the fluids from an underground deposit, a complex well damaged by drilling operations |
| 11/07/2002 | WO2002088522A1 Method, system and tool for reservoir evaluation and well testing during drilling operations |
| 11/07/2002 | CA2448404A1 Method, system and tool for reservoir evaluation and well testing during drilling operations |
| 11/06/2002 | EP1254352A1 Downhole densitometer |
| 11/06/2002 | CN2519855Y Heavy hammer type mud sampling device |
| 11/06/2002 | CN1378666A Method and system for simulating hydrocarbon-bearing formation |
| 11/05/2002 | US6476384 Methods and apparatus for downhole fluids analysis |
| 11/05/2002 | US6474415 Method and apparatus for milling openings in downhole structures |
| 10/31/2002 | WO2002031476A3 Methods and apparatus for downhole fluids analysis |
| 10/31/2002 | US20020157867 Apparatus and method for coring and/or drilling |
| 10/31/2002 | US20020157829 Complete trip system |
| 10/31/2002 | US20020157825 Low-flow groundwater sampling system |
| 10/31/2002 | DE10116363A1 Bohrkopf einer Bohreinrichtung, insbesondere Spülbohrkopf einer Flachbohreinrichtung Drill a drilling, in particular a power swivel Flachbohreinrichtung |
| 10/30/2002 | EP1253284A2 Apparatus for formation testing |
| 10/29/2002 | US6470967 Sampling device |
| 10/24/2002 | WO2002084334A1 Down hole gas analyzer method and apparatus |
| 10/24/2002 | WO2002084065A2 Drilling head of a drilling device, particularly a wash drilling head of a horizontal drilling device |
| 10/24/2002 | WO2002014907B1 Apparatus and method for synchronized formation measurement |
| 10/24/2002 | US20020153888 Downhole NMR processing |
| 10/24/2002 | CA2444194A1 Down hole gas analyzer method and apparatus |
| 10/22/2002 | US6467544 Sample chamber with dead volume flushing |
| 10/22/2002 | US6467387 Apparatus and method for propelling a data sensing apparatus into a subsurface formation |
| 10/17/2002 | US20020149498 Reservoir monitoring through windowed casing joint |
| 10/17/2002 | US20020148643 Method and apparatus for retaining a core sample within a coring tool |
| 10/17/2002 | US20020148306 Device for talking samples from a material of granular or powdery composition |
| 10/16/2002 | EP1203140A4 Anti-wobbling bailer with high speed insertion |
| 10/16/2002 | EP0988440B1 Control and monitoring system for chemical treatment of an oilfield well |
| 10/16/2002 | CN1375037A System for enhancing fluid flow in a well |
| 10/16/2002 | CN1374511A Sample room with dead volumn washing |
| 10/16/2002 | CN1092745C Method and equipment for collecting stratigraphic data during well drilling |
| 10/15/2002 | US6464021 Equi-pressure geosteering |
| 10/09/2002 | EP1247936A1 Apparatus and method for coring and/or drilling |
| 10/09/2002 | EP1247178A1 Method and program for simulating a physical system using object-oriented programming |
| 10/09/2002 | EP1247002A2 Formation fluid side-wall sampler |
| 10/09/2002 | EP1246993A1 Three dimensional steerable system |
| 10/03/2002 | WO2002077613A2 Fluid property sensors |
| 10/02/2002 | EP1116350A4 Drill string telemetry with insulator between receiver and transmitter |
| 10/01/2002 | US6457760 High speed insertion bailer having snap-in spider for valve alignment |
| 10/01/2002 | US6457539 Early formation evaluation tool |
| 10/01/2002 | US6457521 Method and apparatus for continuously testing a well |
| 09/28/2002 | CA2369669A1 Iterative drilling simulation process for enhanced economic decision making |
| 09/26/2002 | WO2002075114A1 Method and apparatus to provide miniature formation fluid sample |
| 09/26/2002 | US20020134587 Method, system and tool for reservoir evaluation and well testing during drilling operations |
| 09/26/2002 | US20020134556 Sample extraction system for boreholes |
| 09/25/2002 | EP1242881A1 Method and system for simulating a hydrocarbon-bearing formation |
| 09/19/2002 | WO2002073166A1 Process and device for assessing the permeability of a rock medium |
| 09/19/2002 | US20020129936 Method and apparatus to provide miniature formation fluid sample |
| 09/18/2002 | EP1240495A1 Improved method and apparatus for predicting the fluid characteristics in a well hole |
| 09/18/2002 | EP0836670B1 Method and system for logging mechanical parameters of formations crossed through by a borehole |
| 09/12/2002 | WO2002070864A1 Determining the in situ effective mobility and the effective permeability of a formation |
| 09/11/2002 | EP1239113A2 Method and apparatus for well testing |
| 09/11/2002 | EP1166055A4 A method of estimating properties of a multi-component fluid using pseudocomponents |
| 09/11/2002 | EP0973997B1 Method and apparatus for the downhole compositional analysis of formation gases |
| 09/10/2002 | US6446736 Non-rotating sensor assembly for measurement-while-drilling applications |
| 09/10/2002 | US6446720 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 09/10/2002 | US6446719 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 09/10/2002 | CA2288447C Formation evaluation using magnetic resonance logging measurements |
| 09/05/2002 | US20020121370 Method and apparatus for hydrogen sulfide monitoring |
| 09/04/2002 | EP1237000A1 Method for detecting and controlling hydrate formation at every point along a pipe in which polyphasic petroleum fluids flow |
| 09/04/2002 | CN1367858A Method for determining fluid contact level in formation |
| 09/03/2002 | US6443001 Method and system for extracting, analyzing and measuring constituents transported by a bore fluid |
| 08/29/2002 | WO2002066791A1 Downhole sensing and flow control utilizing neural networks |
| 08/29/2002 | WO2002008570A8 Drawdown apparatus and method for in-situ analysis of formation fluids |
| 08/27/2002 | US6439307 Apparatus and method for controlling well fluid sample pressure |
| 08/27/2002 | US6439306 Actuation of downhole devices |
| 08/27/2002 | US6439046 Apparatus and method for synchronized formation measurement |
| 08/22/2002 | US20020112854 Closed-loop drawdown apparatus and method for in-situ analysis of formation fluids |
| 08/22/2002 | DE10104104A1 Vorrichtung zum Entnehmen von Fluiden aus dem Boden An apparatus for extracting fluids from the bottom |
| 08/21/2002 | EP1233143A1 Coiled tubing |
| 08/20/2002 | US6437326 Permanent optical sensor downhole fluid analysis systems |
| 08/20/2002 | US6435279 Method and apparatus for sampling fluids from a wellbore |
| 08/15/2002 | WO2001040937A9 Method and program for simulating a physical system using object-oriented programming |
| 08/15/2002 | US20020109080 Wellbores utilizing fiber optic-based sensors and operating devices |
| 08/15/2002 | US20020108784 Non-rotating sensor assembly for measurement-while-drilling applications |
| 08/13/2002 | US6431278 Reducing sand production from a well formation |
| 08/13/2002 | US6431272 Controlled slow descent bailer |
| 08/13/2002 | US6431006 Soil testing assemblies |
| 08/08/2002 | WO2002061239A1 Method to evaluate the hydrocarbon potential of sedimentary basins from fluid inclusions |
| 08/08/2002 | WO2002029196A3 Improved well testing system |
| 08/08/2002 | US20020104648 Controlled slow descent bailer |
| 08/08/2002 | US20020104328 Downhole sorption cooling and heating in wireline logging and monitoring while drilling |
| 08/07/2002 | EP1229172A1 Method and apparatus for making drilled piles in hard ground |
| 08/07/2002 | EP1228290A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 08/06/2002 | US6427785 Subsurface measurement apparatus, system, and process for improved well drilling, control, and production |
| 08/01/2002 | US20020100585 Slimhole fluid tester |
| 07/31/2002 | EP1226336A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |