| Patents for E21B 47 - Survey of boreholes or wells (31,352) |
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| 05/23/2006 | CA2160968C Downhole depth correlation and computation apparatus and methods for combining multiple borehole measurements |
| 05/18/2006 | WO2006053294A1 Method and system for predictive stratigraphy images |
| 05/18/2006 | WO2006052621A2 Multiscale multidimensional well log data inversion and deep formation imaging method |
| 05/18/2006 | WO2006051250A1 Remote actuation of a downhole tool |
| 05/18/2006 | US20060102625 In situ processing of hydrocarbon-bearing formations with variable frequency dielectric heating |
| 05/18/2006 | US20060102348 Drifting tubing |
| 05/18/2006 | US20060102347 Method and apparatus for logging a well using fiber optics |
| 05/18/2006 | US20060102342 Fracture characterization using reservoir monitoring devices |
| 05/18/2006 | US20060102341 Signalling method and apparatus |
| 05/18/2006 | US20060102340 Automatic downlink system |
| 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 |
| 05/18/2006 | CA2586680A1 Multiscale multidimensional well log data inversion and deep formation imaging method |
| 05/18/2006 | CA2584973A1 Method and apparatus |
| 05/17/2006 | EP1656549A1 Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer |
| 05/17/2006 | EP1058823B1 Apparatus and method for protecting optical devices in hostile environments |
| 05/17/2006 | CN2780990Y Scan testing device for pressure of oil field well and water well |
| 05/17/2006 | CN1256503C Method for measuring stratigraphic in situ static temperature |
| 05/16/2006 | US7046165 Method for collecting geological data ahead of a drill bit |
| 05/16/2006 | US7044238 Method for improving drilling depth measurements |
| 05/16/2006 | US7044237 Drilling system and method |
| 05/16/2006 | US7044219 Shock absorber |
| 05/16/2006 | CA2510101C Method and apparatus for controlling the speed of a pump in a well |
| 05/16/2006 | CA2338517C Optical fiber cable for use in harsh environments |
| 05/11/2006 | WO2006050488A1 Apparatus and method for retroactively installing sensors on marine elements |
| 05/11/2006 | WO2006048455A1 Measuring device for a drilling apparatus |
| 05/11/2006 | WO2006048210A1 Method and apparatus for well treatment |
| 05/11/2006 | WO2006021925A3 Well site communication system |
| 05/11/2006 | WO2005033907A3 Activity data capture system for a well service vehicle |
| 05/11/2006 | US20060098532 Mud pulse landing assembly for use in directional drilling |
| 05/11/2006 | US20060096755 Method and system for accessing subterranean deposits from the surface |
| 05/11/2006 | US20060096753 Methods of using coiled tubing inspection data |
| 05/11/2006 | US20060096105 Determination of borehole azimuth and the azimuthal dependence of borehole parameters |
| 05/11/2006 | CA2585061A1 Method and apparatus for well treatment |
| 05/10/2006 | CN2779064Y Impulse mutual inductance type coupling detector |
| 05/10/2006 | CN2779063Y Pressure balance type mechanical pushing device |
| 05/10/2006 | CN2779060Y Direct-reading adjustable stratified water-flood device |
| 05/10/2006 | CN1769836A Rotating angle detection method for rotating object and sensor therefor |
| 05/10/2006 | CN1769645A Guide positioning method and positioning instrument for horizontal directional drilling |
| 05/10/2006 | CN1769644A Kick warning system using high frequency fluid mode in a borehole |
| 05/09/2006 | US7042367 Very high data rate telemetry system for use in a wellbore |
| 05/09/2006 | US7041908 Data transmission system for a downhole component |
| 05/09/2006 | US7040415 Downhole telemetry system and method |
| 05/09/2006 | US7040402 Instrumented packer |
| 05/09/2006 | US7040400 In situ thermal processing of a relatively impermeable formation using an open wellbore |
| 05/09/2006 | US7040398 In situ thermal processing of a relatively permeable formation in a reducing environment |
| 05/09/2006 | US7040397 Thermal processing of an oil shale formation to increase permeability of the formation |
| 05/09/2006 | US7040390 Wellbores utilizing fiber optic-based sensors and operating devices |
| 05/09/2006 | US7040156 Flexible membrane encapsulated strain measurement instrument and method of manufacture |
| 05/09/2006 | US7040003 Inductive coupler for downhole components and method for making same |
| 05/09/2006 | CA2170184C Steerable rotary drilling systems |
| 05/04/2006 | WO2006047523A1 Magnetic measurements while rotating |
| 05/04/2006 | WO2006047478A2 Method for determining tracer concentration in oil and gas production fluids |
| 05/04/2006 | WO2005116387A3 Deployment system |
| 05/04/2006 | US20060095239 Multiscale multidimensional well log data inversion and deep formation imaging method |
| 05/04/2006 | US20060090934 Formation dip geo-steering method |
| 05/04/2006 | US20060090893 Plunger Lift Apparatus That Includes One or More Sensors |
| 05/04/2006 | US20060090892 System and Method for Utilizing a Skin Sensor in a Downhole Application |
| 05/03/2006 | EP1653044A2 System for communicating information between a rig location and a computer network and methods using the system |
| 05/03/2006 | EP1653043A1 Method and apparatus for well treatment |
| 05/03/2006 | EP1185761B8 Acoustic telemetry system with drilling noise cancellation |
| 05/03/2006 | CN2777573Y Digital phase sensitive detecting circuit for inductive logging instrument |
| 05/03/2006 | CN1766284A Stratum pressure recognition method by abnormal fluid immersing into well bore |
| 05/02/2006 | US7038454 System and method for detecting an underground object using magnetic field sensing |
| 05/02/2006 | US7037724 Mixing variations in crude oil; measuring asphaltene in mixture; prevention precipitation; calibration; storage stability |
| 05/02/2006 | US7036609 Sonde housing and method of manufacture |
| 05/02/2006 | US7036583 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation |
| 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 |
| 04/29/2006 | CA2522450A1 System for communicating information between a rig location and a computer network and methods using the system |
| 04/27/2006 | WO2006000796A3 Signalling method |
| 04/27/2006 | US20060087449 Apparatus and methods for conveying and operating analytical instrumentation within a well borehole |
| 04/27/2006 | US20060087448 Marking of pipe joints |
| 04/27/2006 | US20060087447 Multi-frequency boring tool locating system and method |
| 04/27/2006 | US20060086536 Electrical transmission apparatus through rotating tubular members |
| 04/27/2006 | US20060086508 Placing fiber optic sensor line |
| 04/27/2006 | US20060086499 Methods and systems for reverse-circulation cementing in subterranean formations |
| 04/27/2006 | US20060086498 Harvesting Vibration for Downhole Power Generation |
| 04/27/2006 | US20060086497 Wireless Communications Associated With A Wellbore |
| 04/27/2006 | DE10220156B4 Vermessungswerkzeug, insbesondere zum Vermessen von Bohrlöchern und Verfahren zum Vermessen von Bohrlöchern Survey tool, particularly for measuring boreholes and method for measuring boreholes |
| 04/26/2006 | EP1650401A2 High-power well logging method and apparatus |
| 04/26/2006 | EP1497533A4 Magnetically activated well tool |
| 04/26/2006 | CN2775302Y Storage type logging depth meter |
| 04/26/2006 | CN2775301Y Storage type logging magnetic locating depth corrector |
| 04/26/2006 | CN2775299Y Synchronous flow checking seal detector |
| 04/26/2006 | CN1763564A Resistivity and conductivity sensor used for high temperature and high pressure environment |
| 04/25/2006 | US7035778 Method of assaying downhole occurrences and conditions |
| 04/25/2006 | US7035165 Imaging near-borehole structure using directional acoustic-wave measurement |
| 04/25/2006 | US7034768 Antenna system |
| 04/25/2006 | US7032689 Method and system for predicting performance of a drilling system of a given formation |
| 04/25/2006 | US7032662 injecting tracer in oil well; analyzing recovered fluid to determine concentration of tracer ; quantitative analysis |
| 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 | CA2524196A1 Distributed processing system for subsurface operations |
| 04/21/2006 | CA2690921A1 Harvesting vibration for downhole power generation |
| 04/21/2006 | CA2523642A1 Harvesting vibration for downhole power generation |
| 04/20/2006 | WO2006041566A1 Surface instrumentation configuration for a drilling rig operation |
| 04/20/2006 | WO2006041565A1 Measuring weight on bit using coherent radiation |
| 04/20/2006 | WO2006041499A2 Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel |
| 04/20/2006 | WO2006041310A1 Method for hydrocarbon reservoir monitoring |
| 04/20/2006 | WO2006041309A1 System and method for wireless communication in a producing well system |