Patent | Date |
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Universal bottomhole assembly node (UBHAN) providing communications to and from rotary steerable systems (RSS) and real time azimuthal resistivity imaging for geosteering and pressure while drilling (FWD) for well control Grant 11,326,437 - Tchakarov , et al. May 10, 2 | 2022-05-10 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20210277764 - Wang; Tsili | 2021-09-09 |
Modular Resistivity Sensor For Downhole Measurement While Drilling App 20210262344 - Wang; Tsili ;   et al. | 2021-08-26 |
Boundary tracking control module for rotary steerable systems Grant 11,098,572 - Tchakarov , et al. August 24, 2 | 2021-08-24 |
Rotary guiding device based on radial driving force Grant 11,021,911 - Liu , et al. June 1, 2 | 2021-06-01 |
Apparatus and methods for making azimuthal resistivity measurements Grant 11,008,850 - Wang May 18, 2 | 2021-05-18 |
Universal Bottomhole Assembly Node (ubhan) Providing Communications To And From Rotary Steerable Systems (rss) And Real Time Azimuthal Resistivity Imaging For Geosteering And Pressure While Drilling (pwd) For Well Control App 20210032971 - Tchakarov; Borislav J. ;   et al. | 2021-02-04 |
Hybrid rotary guiding device Grant 10,837,235 - Liu , et al. November 17, 2 | 2020-11-17 |
Anti-rotating device of non-rotating sleeve and a rotary guiding device Grant 10,815,730 - Liu , et al. October 27, 2 | 2020-10-27 |
An Anti-rotating Device Of Non-rotating Sleeve And A Rotary Guiding Device App 20200263500 - LIU; Qingbo ;   et al. | 2020-08-20 |
A Hybrid Rotary Guiding Device App 20200263503 - LIU; Qingbo ;   et al. | 2020-08-20 |
A Rotary Guiding Device App 20200190909 - LIU; Qingbo ;   et al. | 2020-06-18 |
Boundary Tracking Control Module For Rotary Steerable Systems App 20200182037 - Tchakarov; Borislav J. ;   et al. | 2020-06-11 |
A Rotary Guiding Device Based On Radial Driving Force App 20200087986 - LIU; Qingbo ;   et al. | 2020-03-19 |
Apparatus and methods for communicating with a downhole tool Grant 10,591,635 - Guo , et al. | 2020-03-17 |
Modular Resistivity Sensor For Downhole Measurement While Drilling App 20190277136 - Wang; Tsili ;   et al. | 2019-09-12 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20190234196 - Wang; Tsili | 2019-08-01 |
Apparatus and methods for making azimuthal resistivity measurements with off-set directional antennas Grant 10,365,391 - Wang July 30, 2 | 2019-07-30 |
Modular resistivity sensor for downhole measurement while drilling Grant 10,337,322 - Wang , et al. | 2019-07-02 |
Apparatus and methods for making azimuthal resistivity measurements Grant 10,253,614 - Wang | 2019-04-09 |
Apparatus and method for microresistivity imaging in which transmitter coil and receiver coil axes are substantially perpendicular to the longitudinal axis of the tool body Grant 10,114,140 - Wang October 30, 2 | 2018-10-30 |
Boundary Tracking Control Module For Rotary Steerable Systems App 20180258751 - Tchakarov; Borislav J. ;   et al. | 2018-09-13 |
Boundary tracking control module for rotary steerable systems Grant 10,072,490 - Tchakarov , et al. September 11, 2 | 2018-09-11 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20180203152 - Wang; Tsili | 2018-07-19 |
Apparatus and methods for making azimuthal resistivity measurements Grant 9,952,347 - Wang April 24, 2 | 2018-04-24 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements With Off-set Directional Antennas App 20180074219 - Wang; Tsili | 2018-03-15 |
Modular Resistivity Sensor for Downhole Measurement While Drilling App 20180024266 - Wang; Tsili ;   et al. | 2018-01-25 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20170371063 - Wang; Tsili | 2017-12-28 |
Apparatus and methods for communicating downhole data Grant 9,851,465 - Wang , et al. December 26, 2 | 2017-12-26 |
Apparatus and methods for making azimuthal resistivity measurements Grant 9,767,153 - Wang September 19, 2 | 2017-09-19 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20170193050 - Wang; Tsili | 2017-07-06 |
Modular Resistivity Sensor for Downhole Measurement While Drilling App 20170191364 - Wang; Tsili ;   et al. | 2017-07-06 |
Apparatus and methods for making azimuthal resistivity measurements Grant 9,645,276 - Wang May 9, 2 | 2017-05-09 |
Modular resistivity sensor for downhole measurement while drilling Grant 9,638,819 - Wang , et al. May 2, 2 | 2017-05-02 |
Apparatus and method for downhole resistivity measurements Grant 9,575,201 - Wang February 21, 2 | 2017-02-21 |
System and methods for selective shorting of an electrical insulator section Grant 9,359,889 - Wang , et al. June 7, 2 | 2016-06-07 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20160124107 - WANG; Tsili | 2016-05-05 |
Downhole closed-loop geosteering methodology Grant 9,273,517 - Tchakarov , et al. March 1, 2 | 2016-03-01 |
Apparatus and methods for making azimuthal resistivity measurements Grant 9,268,053 - Wang February 23, 2 | 2016-02-23 |
Apparatus And Methods For Communicating With A Downhole Tool App 20150362615 - Guo; Lianhe ;   et al. | 2015-12-17 |
Apparatus And Method For Downhole Resistivity Measurements App 20150293254 - WANG; Tsili | 2015-10-15 |
Remotely located tuning circuits for multi-frequency, multi-purpose induction antennae in downhole tools Grant 9,146,332 - Signorelli , et al. September 29, 2 | 2015-09-29 |
System And Methods For Selective Shorting Of An Electrical Insulator Section App 20150107900 - WANG; Tsili ;   et al. | 2015-04-23 |
Processing of multi-component induction data in the presence of borehole abnormalities Grant 8,931,335 - Rabinovich , et al. January 13, 2 | 2015-01-13 |
Apparatus And Methods For Making Azimuthal Resistivity Measurements App 20140368197 - WANG; Tsili | 2014-12-18 |
Apparatus And Methods For Communicating Downhole Data App 20140368350 - WANG; Tsili ;   et al. | 2014-12-18 |
Modular Resistivity Sensor For Downhole Measurement While Drilling App 20140368200 - WANG; Tsili ;   et al. | 2014-12-18 |
Unipole and bipole acoustic logging while drilling tools Grant 8,755,248 - Wang June 17, 2 | 2014-06-17 |
Acoustic waveform stacking using azimuthal and/or standoff binning Grant 8,625,390 - Wang , et al. January 7, 2 | 2014-01-07 |
Method of directional resistivity logging Grant 8,626,446 - Dong , et al. January 7, 2 | 2014-01-07 |
Microresistivity anisotropy logging tool employing a monopole current injection electrode Grant 8,581,594 - Wang , et al. November 12, 2 | 2013-11-12 |
Acoustic logging while drilling tool having raised transducers Grant 8,559,272 - Wang October 15, 2 | 2013-10-15 |
Methods for making acoustic anisotropy logging while drilling measurements Grant 8,547,788 - Wang , et al. October 1, 2 | 2013-10-01 |
Downhole sonic logging tool including irregularly spaced receivers Grant 8,542,553 - Wang September 24, 2 | 2013-09-24 |
Method of correcting resistivity measurements for toll bending effects Grant 8,536,871 - Li , et al. September 17, 2 | 2013-09-17 |
Apparatus And Method For Microresistivity Imaging In Nonconductive Drilling Fluid App 20130234717 - Wang; Tsili | 2013-09-12 |
Logging tool employing a monopole current injection electrode for microresistivity imaging Grant 8,508,231 - Wang August 13, 2 | 2013-08-13 |
Directional resistivity antenna shield Grant 8,497,673 - Wang , et al. July 30, 2 | 2013-07-30 |
Apparatus and method for downhole electromagnetic measurement while drilling Grant 8,466,682 - Wang June 18, 2 | 2013-06-18 |
Microresistivity imaging at multiple depths of investigation Grant 8,319,498 - Wang November 27, 2 | 2012-11-27 |
Calibration method for a microresistivity logging tool Grant 8,305,083 - Wang November 6, 2 | 2012-11-06 |
Method Of Directional Resistivity Logging App 20120253676 - Dong; Qiuzhao ;   et al. | 2012-10-04 |
Anisotropy orientation image from resistivity measurements for geosteering and formation evaluation Grant 8,278,931 - Fang , et al. October 2, 2 | 2012-10-02 |
Binning method for borehole imaging Grant 8,271,199 - Wang September 18, 2 | 2012-09-18 |
Externally mounted band antennae requiring minimal metal cutting on drillstring for reduction of mechanical stresses Grant 8,212,567 - Signorelli , et al. July 3, 2 | 2012-07-03 |
Non-planar antennae for directional resistivity logging Grant 8,207,738 - Wang June 26, 2 | 2012-06-26 |
Directional resistivity imaging using harmonic representations Grant 8,195,400 - Wang June 5, 2 | 2012-06-05 |
Method Of Correcting Resistivity Measurements For Toll Bending Effects App 20120105076 - Li; Jing ;   et al. | 2012-05-03 |
Apparatus and system for geosteering and formation evaluation utilizing improved antennas Grant 8,164,339 - Fang , et al. April 24, 2 | 2012-04-24 |
Methods for making directional resistivity measurements Grant 8,159,227 - Wang April 17, 2 | 2012-04-17 |
Microresistivity imaging in conductive and nonconductive drilling fluid Grant 8,129,994 - Wang March 6, 2 | 2012-03-06 |
Acoustic Waveform Stacking Using Azimuthal And/or Standoff Binning App 20120044783 - Wang; Tsili ;   et al. | 2012-02-23 |
Downhole Closed-loop Geosteering Methodology App 20120046868 - Tchakarov; Borislav J. ;   et al. | 2012-02-23 |
Caliper logging using circumferentially spaced and/or angled transducer elements Grant 8,117,907 - Han , et al. February 21, 2 | 2012-02-21 |
Determining structural dip and azimuth from LWD resistivity measurements in anisotropic formations Grant 8,117,018 - Fang , et al. February 14, 2 | 2012-02-14 |
Remotely Located Tuning Circuits for Multi-Frequency, Multi-Purpose Induction Antennae in Downhole Tools App 20120032868 - Signorelli; John ;   et al. | 2012-02-09 |
Apparatus and method for removing anisotropy effect from directional resistivity measurements Grant 8,089,268 - Wang January 3, 2 | 2012-01-03 |
Acoustic Logging While Drilling Tool Having Raised Transducers App 20110286307 - Wang; Tsili | 2011-11-24 |
Methods For Making Acoustic Anisotropy Logging While Drilling Measurements App 20110280102 - Wang; Tsili ;   et al. | 2011-11-17 |
Unipole And Bipole Acoustic Logging While Drilling Tools App 20110280101 - Wang; Tsili | 2011-11-17 |
Apparatus and method for imaging subsurface materials using a pad having a plurality of electrode sets Grant 8,030,938 - Bespalov , et al. October 4, 2 | 2011-10-04 |
Correction of sensor non-equipotentiality in a resistivity imaging device Grant 8,014,963 - Wang , et al. September 6, 2 | 2011-09-06 |
Method for compensating drill pipe and near-borehole effect on and electronic noise in transient resistivity measurements Grant 8,008,919 - Wang , et al. August 30, 2 | 2011-08-30 |
Electromagnetic and magnetostatic shield to perform measurements ahead of the drill bit Grant 7,994,790 - Itskovich , et al. August 9, 2 | 2011-08-09 |
Downhole Sonic Logging Tool Including Irregularly Spaced Receivers App 20110188345 - Wang; Tsili | 2011-08-04 |
Microresistivity Imaging with Differentially Raised Electrodes App 20110187374 - Wang; Tsili | 2011-08-04 |
Compensated directional resistivity measurements Grant 7,990,153 - Streinz , et al. August 2, 2 | 2011-08-02 |
Logging Tool Employing A Monopole Current Injection Electrode For Microresistivity Imaging App 20110156711 - Wang; Tsili | 2011-06-30 |
Binning Method For Borehole Imaging App 20110161009 - Wang; Tsili | 2011-06-30 |
Microresistivity Anisotropy Logging Tool Employing A Monopole Current Injection Electrode App 20110156709 - Wang; Tsili ;   et al. | 2011-06-30 |
Calibration Method For A Microresistivity Logging Tool App 20110156710 - Wang; Tsili | 2011-06-30 |
Methods and apparatus for determination of a formation resistivity property using eccentered measurements Grant 7,952,358 - Wang , et al. May 31, 2 | 2011-05-31 |
Microresistivity Imaging at Multiple Depths of Investigation App 20110089950 - Wang; Tsili | 2011-04-21 |
Microresistivity Imaging in Conductive and Nonconductive Drilling Fluid App 20110089951 - Wang; Tsili | 2011-04-21 |
Directional Resistivity Antenna Shield App 20110074427 - Wang; Tsili ;   et al. | 2011-03-31 |
Apparatus and Method for Downhole Electromagnetic Measurement While Drilling App 20110074428 - Wang; Tsili | 2011-03-31 |
Method of calibrating an azimuthal inductive cross-coil or tilted coil instrument Grant 7,915,895 - Chemali , et al. March 29, 2 | 2011-03-29 |
Method and apparatus for imaging bed boundaries using azimuthal propagation resistivity measurements Grant 7,912,648 - Tang , et al. March 22, 2 | 2011-03-22 |
Sequential resistivity imaging with asymmetric electrode arrays Grant 7,899,622 - Wang March 1, 2 | 2011-03-01 |
Method of generating a deep resistivity image in LWD measurements Grant 7,894,990 - Wang , et al. February 22, 2 | 2011-02-22 |
Multi-component resistivity logging tool with multiple antennas using common antenna grooves Grant 7,839,149 - Wang , et al. November 23, 2 | 2010-11-23 |
Directional Resistivity Imaging Using Harmonic Representations App 20100286916 - Wang; Tsili | 2010-11-11 |
Compensated Directional Resistivity Measurements App 20100283470 - Streinz; Christopher C. ;   et al. | 2010-11-11 |
Remotely located tuning circuits for multi-frequency, multi-puropse induction antennae in downhole tools App 20100283468 - Signorelli; John ;   et al. | 2010-11-11 |
Methods For Making Directional Resistivity Measurements App 20100283469 - Wang; Tsili | 2010-11-11 |
Non-planar Antennae For Directional Resistivity Logging App 20100244841 - Wang; Tsili | 2010-09-30 |
Apparatus And Method For Removing Anisotropy Effect From Directional Resistivity Measurements App 20100244842 - Wang; Tsili | 2010-09-30 |
Caliper Logging Using Circumferentially Spaced and/or Angled Transducer Elements App 20100154531 - Han; Wei ;   et al. | 2010-06-24 |
Multipole antennae for logging-while-drilling resistivity measurements Grant 7,742,008 - Wang , et al. June 22, 2 | 2010-06-22 |
Apparatus and method for azimuthal MWD resistivity imaging at multiple depths of investigation Grant 7,723,991 - Signorelli , et al. May 25, 2 | 2010-05-25 |
Externally Mounted Band Atennae Requiring Minimal Metal Cutting On Drillstring For Reduction Of Mechanical Stresses App 20100097279 - Signorelli; John A. ;   et al. | 2010-04-22 |
Resistivity tools with collocated antennas Grant 7,663,372 - Signorelli , et al. February 16, 2 | 2010-02-16 |
Method and apparatus for correcting underestimation of formation anisotropy ratio Grant 7,657,375 - Wang , et al. February 2, 2 | 2010-02-02 |
Anisotropy Orientation Image From Resistivity Measurements For Geosteering And Formation Evaluation App 20100007348 - Fang; Sheng ;   et al. | 2010-01-14 |
Sequential Resistivity Imaging With Asymmetric Electrode Arrays App 20090309602 - Wang; Tsili | 2009-12-17 |
Apparatus And System For Geosteering And Formation Evaluation Utilizing Improved Antennas App 20090301781 - Fang; Sheng ;   et al. | 2009-12-10 |
Apparatus and method for measuring micro-resistivity anisotropy Grant 7,609,066 - Wang October 27, 2 | 2009-10-27 |
Four-terminal Electric Imager For Resistive Muds With Localized Current Control App 20090243619 - Bespalov; Alexandre N. ;   et al. | 2009-10-01 |
Method for Compensating Drill Pipe and Near-Borehole Effect on and Electronic Noise in Transient Resistivity Measurements App 20090243618 - Wang; Tsili ;   et al. | 2009-10-01 |
Electromagnetic and Magnetostatic Shield to Perform Measurements Ahead of the Drill Bit App 20090237084 - Itskovich; Gregory B. ;   et al. | 2009-09-24 |
Correction Of Sensor Non-equipotentiality In A Resistivity Imaging Device App 20090224766 - Wang; Tsili ;   et al. | 2009-09-10 |
Determining Structural Dip and Azimuth From LWD Resistivity Measurements in Anisotropic Formations App 20090192713 - Fang; Sheng ;   et al. | 2009-07-30 |
Method for Building Multi-Component Electromagnetic Antennas App 20090179647 - Wang; Tsili ;   et al. | 2009-07-16 |
Method and apparatus for reducing borehole and eccentricity effects in multicomponent induction logging Grant 7,554,328 - Wang , et al. June 30, 2 | 2009-06-30 |
Method and apparatus for tensorial micro-resistivity imaging in oil-based muds Grant 7,545,145 - Wang June 9, 2 | 2009-06-09 |
Method And Apparatus For Imaging Bed Boundaries Using Azimuthal Propagation Resistivity Measurements App 20090138202 - TANG; Xiao M. ;   et al. | 2009-05-28 |
Method and apparatus for cement bond evaluation using transversely polarized shear waves Grant 7,525,872 - Tang , et al. April 28, 2 | 2009-04-28 |
Methods for Interpreting Multi-Component Induction Logs Using the X-Signal Measurements App 20090102485 - Wang; Tsili ;   et al. | 2009-04-23 |
Apparatus and Method for Azimuthal MWD Resistivity Imaging at Multiple Depths of Investigation App 20090085570 - Signorelli; Jack ;   et al. | 2009-04-02 |
Use of multi-component measurements in delineating geology of deep-water sediments Grant 7,505,851 - Bal , et al. March 17, 2 | 2009-03-17 |
Method of generating a deep resistivity image in LWD measurements Grant 7,483,793 - Wang , et al. January 27, 2 | 2009-01-27 |
Method and Apparatus for Phased Array Acoustic Well Logging App 20090000859 - Wang; Tsili ;   et al. | 2009-01-01 |
Elimination of the anisotropy effect in LWD azimuthal resistivity tool data Grant 7,471,088 - Yu , et al. December 30, 2 | 2008-12-30 |
Method of Calibrating an Azimuthal Inductive Cross-Coil or Tilted Coil Instrument App 20080315883 - Chemali; Roland E. ;   et al. | 2008-12-25 |
Single-dipole High Frequency Electric Imager App 20080303525 - Itskovich; Gregory B. ;   et al. | 2008-12-11 |
Correction of sensor non-equipotentiality in a resistivity imaging device Grant 7,437,251 - Wang , et al. October 14, 2 | 2008-10-14 |
Method and apparatus for directional resistivity measurement while drilling Grant 7,414,407 - Wang , et al. August 19, 2 | 2008-08-19 |
Correction of sensor non-equipotentiality in a resistivity imaging device App 20080172198 - Wang; Tsili ;   et al. | 2008-07-17 |
Multipole Antennae For Logging-while-drilling Resistivity Measurements App 20080158082 - Wang; Tsili ;   et al. | 2008-07-03 |
Method for signal enhancement in azimuthal propagation resistivity while drilling Grant 7,375,530 - Chemali , et al. May 20, 2 | 2008-05-20 |
Apparatus for multicomponent induction measurement with reduced borehole and eccentricity effects App 20080111554 - Wang; Tsili ;   et al. | 2008-05-15 |
Method of Generating a Deep Resistivity Image in LWD Measurements App 20080109167 - Wang; Tsili ;   et al. | 2008-05-08 |
Determination of fracture orientation and length using multi-component and multi-array induction data Grant 7,359,800 - Rabinovich , et al. April 15, 2 | 2008-04-15 |
Resistivity Tools With Collocated Antennas App 20080074336 - Signorelli; Jack ;   et al. | 2008-03-27 |
Multicomponent induction measurements in cross-bedded and weak anisotropy approximation Grant 7,317,991 - Wang , et al. January 8, 2 | 2008-01-08 |
Method and Apparatus for Correcting Underestimation of Formation Anisotropy Ratio App 20070267192 - Wang; Tsili ;   et al. | 2007-11-22 |
Use of Multi-component Measurements in Delineating Geology of Deep-Water Sediments App 20070265784 - Bal; Adriaan A. ;   et al. | 2007-11-15 |
Method and apparatus for tensorial micro-resistivity imaging in oil-based muds App 20070257678 - Wang; Tsili | 2007-11-08 |
Apparatus And Method For Measuring Micro-resistivity Anisotropy App 20070257677 - Wang; Tsili | 2007-11-08 |
Processing of multi-component induction data in the presence of borehole abnormalities App 20070234787 - Rabinovich; Michael B. ;   et al. | 2007-10-11 |
Apparatus and method for wireline imaging in nonconductive muds Grant 7,228,903 - Wang , et al. June 12, 2 | 2007-06-12 |
Method and apparatus for detecting overpressured zone ahead of a drill bit using resistivity and seismic measurements App 20070127314 - Wang; Tsili ;   et al. | 2007-06-07 |
Compensation for tool disposition in LWD resistivity measurements App 20070024286 - Wang; Tsili | 2007-02-01 |
Method of generating a deep resistivity image in LWD measurements App 20070024285 - Wang; Tsili ;   et al. | 2007-02-01 |
Error correction and calibration of a deep reading propagation resistivity tool Grant 7,141,981 - Folberth , et al. November 28, 2 | 2006-11-28 |
Elimination of the anisotropy effect in LWD azimuthal resistivity tool data App 20060255810 - Yu; Liming ;   et al. | 2006-11-16 |
Method and apparatus for directional resistivity measurement while drilling App 20060186888 - Wang; Tsili ;   et al. | 2006-08-24 |
Multicomponent induction measurements in cross-bedded and weak anisotropy approximation App 20060161350 - Wang; Tsili ;   et al. | 2006-07-20 |
Method for signal enhancement in azimuthal propagation resistivity while drilling App 20060125479 - Chemali; Roland E. ;   et al. | 2006-06-15 |
Method and apparatus for directional resistivity measurement while drilling Grant 7,057,392 - Wang , et al. June 6, 2 | 2006-06-06 |
Deep reading propagation resistivity tool for determination of distance to a bed boundary with a transition zone App 20060017443 - Folberth; Martin ;   et al. | 2006-01-26 |
Method and apparatus for LWD shear velocity measurement Grant 6,985,086 - Tang , et al. January 10, 2 | 2006-01-10 |
Determination of fracture orientation and length using multi-component and multi-array induction data App 20050256645 - Rabinovich, Michael B. ;   et al. | 2005-11-17 |
Electrical imaging in conductive and non-conductive mud Grant 6,957,708 - Chemali , et al. October 25, 2 | 2005-10-25 |
Method and apparatus for cement bond evaluation using transversely polarized shear waves App 20050190648 - Tang, Xiao-Ming ;   et al. | 2005-09-01 |
Method and apparatus for LWD shear velocity measurement Grant 6,930,616 - Tang , et al. August 16, 2 | 2005-08-16 |
Method of using electrical and acoustic anisotropy measurements for fracture identification Grant 6,925,031 - Kriegshauser , et al. August 2, 2 | 2005-08-02 |
Method and apparatus for LWD shear velocity measurement App 20050078555 - Tang, Xiao Ming ;   et al. | 2005-04-14 |
Apparatus and method for wireline imaging in nonconductive muds App 20050068036 - Wang, Tsili ;   et al. | 2005-03-31 |
Method and apparatus for LWD shear velocity measurement Grant 6,850,168 - Tang , et al. February 1, 2 | 2005-02-01 |
Electrical imaging in conductive and non-conductive mud App 20050006090 - Chemali, Roland E. ;   et al. | 2005-01-13 |
Method and apparatus for LWD shear velocity measurement App 20040257911 - Tang, Xiao Ming ;   et al. | 2004-12-23 |
Method and apparatus for directional resistivity measurement while drilling App 20040113626 - Wang, Tsili ;   et al. | 2004-06-17 |
Method of using electrical and acoustic anisotropy measurements for fracture identification App 20040001388 - Kriegshauser, Berthold ;   et al. | 2004-01-01 |
Method and apparatus for LWD shear velocity measurement App 20020113717 - Tang, Xiao Ming ;   et al. | 2002-08-22 |