Patent | Date |
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Method and system for delineating a second wellbore from a first wellbore Grant 9,030,911 - Tang , et al. May 12, 2 | 2015-05-12 |
Radon migration of acoustic data Grant 8,880,348 - Bolshakov , et al. November 4, 2 | 2014-11-04 |
Method and apparatus for acoustic impedance and P-wave anisotropy measurements Grant 8,576,659 - Egerev , et al. November 5, 2 | 2013-11-05 |
Curve-fitting technique for determining dispersion characteristics of guided elastic waves Grant 8,456,952 - Tang , et al. June 4, 2 | 2013-06-04 |
Arranging Source-Receiver Orientations to Reduce High-Order Modes in Acoustic Monopole Logging App 20130070560 - Zheng; Yibing ;   et al. | 2013-03-21 |
Method and apparatus for determining radial shear velocity variation from dipole acoustic logging Grant 8,379,483 - Tang , et al. February 19, 2 | 2013-02-19 |
Radon Migration Of Acoustic Data App 20120109528 - Bolshakov; Alexei ;   et al. | 2012-05-03 |
Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging Grant 8,004,932 - Zheng , et al. August 23, 2 | 2011-08-23 |
Method and apparatus for characterizing and estimating permeability using LWD Stoneley-wave data Grant 7,970,544 - Tang , et al. June 28, 2 | 2011-06-28 |
Method for determining seismic anisotropy Grant 7,924,652 - Tang , et al. April 12, 2 | 2011-04-12 |
Active noise cancellation through the use of magnetic coupling Grant 7,911,877 - Patterson , et al. March 22, 2 | 2011-03-22 |
Method and Apparatus for Determining Radial Shear Velocity Variation From Dipole Acoustic Logging App 20100309748 - Tang; Xiao Ming ;   et al. | 2010-12-09 |
Electro-magnetic acoustic measurements combined with acoustic wave analysis Grant 7,813,219 - Dubinsky , et al. October 12, 2 | 2010-10-12 |
Method and Apparatus for Acoustic Impedance and P-Wave Anisotropy Measurements App 20100246325 - Egerev; Sergey ;   et al. | 2010-09-30 |
Cement bond analysis Grant 7,787,327 - Tang , et al. August 31, 2 | 2010-08-31 |
Method and apparatus for cement evaluation using multiple acoustic wave types Grant 7,773,454 - Barolak , et al. August 10, 2 | 2010-08-10 |
Active Noise Cancellation Through the Use of Magnetic Coupling App 20100097887 - Patterson; Douglas J. ;   et al. | 2010-04-22 |
Novel Curve-fitting Technique For Determining Dispersion Characteristics Of Guided Elastic Waves App 20100085835 - Tang; Xiao Ming ;   et al. | 2010-04-08 |
Casing resonant radial flexural modes in cement bond evaluation Grant 7,681,450 - Bolshakov , et al. March 23, 2 | 2010-03-23 |
Using statistics of a fitting function for data-driven dispersion slowness processing Grant 7,672,784 - Zheng , et al. March 2, 2 | 2010-03-02 |
Use of Lamb waves in cement bond logging Grant 7,663,969 - Tang , et al. February 16, 2 | 2010-02-16 |
Method for coherence-filtering of acoustic array signal Grant 7,660,200 - Tang February 9, 2 | 2010-02-09 |
Active noise cancellation through the use of magnetic coupling Grant 7,639,562 - Patterson , et al. December 29, 2 | 2009-12-29 |
Method And System For Delineating A Second Wellbore From A First Wellbore App 20090296522 - Tang; Xiao Ming ;   et al. | 2009-12-03 |
P-wave anisotropy determination using borehole measurements Grant 7,626,886 - Dubinsky , et al. December 1, 2 | 2009-12-01 |
Acoustic Imaging Away From the Borehole Using a Low-Frequency Quadrupole Excitation App 20090205899 - Geerits; Tim W. ;   et al. | 2009-08-20 |
Identification of Stress in Formations Using Angles of Fast and Slow Dipole Waves in Borehole Acoustic Logging App 20090185446 - Zheng; Yibing ;   et al. | 2009-07-23 |
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 |
Method for processing acoustic reflections in array data to image near-borehole geological structure Grant 7,492,664 - Tang , et al. February 17, 2 | 2009-02-17 |
Method and Apparatus for Characterizing and Estimating Permeability Using LWD Stoneley-Wave Data App 20090005995 - Tang; Xiao Ming ;   et al. | 2009-01-01 |
Method and Apparatus for Phased Array Acoustic Well Logging App 20090000859 - Wang; Tsili ;   et al. | 2009-01-01 |
Method for determining seismic anisotropy App 20080298174 - Tang; Xiao Ming ;   et al. | 2008-12-04 |
Imaging Near-Borehole Reflectors Using Shear Wave Reflections From a Multi-Component Acoustic Tool App 20080151690 - Tang; Xiao Ming ;   et al. | 2008-06-26 |
Electro-magnetic acoustic measurements combined with acoustic wave analysis App 20080125974 - Dubinsky; Vladimir ;   et al. | 2008-05-29 |
Cement bond analysis App 20080112262 - Tang; Xiao Ming ;   et al. | 2008-05-15 |
Using statistics of a fitting function for data-driven dispersion slowness processing App 20080010021 - Zheng; Yibing ;   et al. | 2008-01-10 |
Active noise cancellation through the use of magnetic coupling App 20070280049 - Patterson; Douglas J. ;   et al. | 2007-12-06 |
P-wave anisotropy evaluation by measuring acoustic impedance of the rock by beam-steering from within the borehole at different angles App 20070280048 - Dubinsky; Vladimir ;   et al. | 2007-12-06 |
Method and apparatus for cement evaluation using multiple acoustic wave types App 20070206439 - Barolak; Joseph Gregory ;   et al. | 2007-09-06 |
Casing resonant radial flexural modes in cement bond evaluation App 20070131417 - Bolshakov; Alexei ;   et al. | 2007-06-14 |
Method for processing acoustic reflections in array data to image near-borehole geological structure App 20070097788 - Tang; Xiao Ming ;   et al. | 2007-05-03 |
Method for coherence-filtering of acoustic array signal App 20060287830 - Tang; Xiao Ming | 2006-12-21 |
Use of lamb waves in cement bond logging App 20060198243 - Tang; Xiao-Ming ;   et al. | 2006-09-07 |
Imaging near-borehole structure using directional acoustic-wave measurement Grant 7,035,165 - Tang April 25, 2 | 2006-04-25 |
Method and apparatus for LWD shear velocity measurement Grant 6,985,086 - Tang , et al. January 10, 2 | 2006-01-10 |
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 determining earth formation shear-wave transverse isotropy from borehole stoneley-wave measurements Grant 6,920,082 - Tang July 19, 2 | 2005-07-19 |
Method and apparatus for LWD shear velocity measurement App 20050078555 - Tang, Xiao Ming ;   et al. | 2005-04-14 |
Method and apparatus for LWD shear velocity measurement Grant 6,850,168 - Tang , et al. February 1, 2 | 2005-02-01 |
Method and apparatus for LWD shear velocity measurement App 20040257911 - Tang, Xiao Ming ;   et al. | 2004-12-23 |
Imaging near-borehole structure using directional acoustic-wave measurement App 20040158997 - Tang, Xiao Ming | 2004-08-19 |
Method and apparatus for determining earth formation shear-wave transverse isotropy from borehole stoneley-wave measurements App 20040001389 - Tang, Xiao Ming | 2004-01-01 |
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 |