Patent | Date |
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Estimating nuclear magnetic resonance measurement quality Grant 11,091,997 - Utsuzawa , et al. August 17, 2 | 2021-08-17 |
Refocusing pulses and excitation pulses for NMR logging Grant 10,962,674 - Hurlimann , et al. March 30, 2 | 2021-03-30 |
Estimating Nuclear Magnetic Resonance Measurement Quality App 20200291763 - Utsuzawa; Shin ;   et al. | 2020-09-17 |
Active damping for NMR logging tools Grant 10,677,956 - Ganesan , et al. | 2020-06-09 |
NMR probe and methods of use Grant 10,386,530 - Song , et al. A | 2019-08-20 |
Identifying and removing artifacts from multi-dimensional distribution functions Grant 10,345,478 - Kadayam Viswanathan , et al. July 9, 2 | 2019-07-09 |
Non-resonant logging tools Grant 10,317,564 - Hopper , et al. | 2019-06-11 |
Method and system for applying NMR pulse sequences with interacting shells Grant 10,197,652 - Hurlimann , et al. Fe | 2019-02-05 |
Active Damping For Nmr Logging Tools App 20180299579 - Ganesan; Krishnamurthy ;   et al. | 2018-10-18 |
Methods and apparatuses for echo processing of nuclear magnetic resonance (NMR) data Grant 10,088,594 - Paulsen , et al. October 2, 2 | 2018-10-02 |
Nuclear magnetic resonance refocusing pulses for inhomogeneous magnetic fields Grant 10,001,578 - Mandal , et al. June 19, 2 | 2018-06-19 |
Methods and apparatuses to remove a net detected residual magnetization in a nuclear magnetic resonance (NMR) operation Grant 9,915,750 - Hurlimann , et al. March 13, 2 | 2018-03-13 |
Refocusing Pulses And Excitation Pulses For Nmr Logging App 20170357025 - HURLIMANN; MARTIN D. ;   et al. | 2017-12-14 |
Rotating frame pulsed nuclear magnetic resonance spectroscopy Grant 9,720,128 - Kadayam Viswanathan , et al. August 1, 2 | 2017-08-01 |
Methods for compositional analysis of downhole fluids using data from NMR and other tools Grant 9,715,033 - Freed , et al. July 25, 2 | 2017-07-25 |
Non-resonant Logging Tools App 20170205528 - Hopper; Timothy Andrew John ;   et al. | 2017-07-20 |
Methods for compositional analysis of downhole fluids using data from NMR and other tools Grant 9,703,003 - Bennett , et al. July 11, 2 | 2017-07-11 |
Refocusing pulses and excitation pulses for NMR logging Grant 9,658,358 - Hurlimann , et al. May 23, 2 | 2017-05-23 |
Non-resonant logging tools with H-bridge switching Grant 9,632,203 - Hopper , et al. April 25, 2 | 2017-04-25 |
Methods And Apparatuses For Echo Processing Of Nuclear Magnetic Resonance (NMR) Data App 20160109613 - Paulsen; Jeffrey L. ;   et al. | 2016-04-21 |
Methods And Apparatuses to Remove A Net Detected Residual Magnetization In A Nuclear Magnetic Resonance (NMR) Operation App 20160109612 - Hurlimann; Martin D. ;   et al. | 2016-04-21 |
Identifying and Removing Artifacts from Multi-Dimensional Distribution Functions App 20150346378 - Kadayam Viswanathan; Ravinath Kausik ;   et al. | 2015-12-03 |
Nuclear Magnetic Resonance Refocusing Pulses For Inhomogeneous Magnetic Fields App 20150323698 - MANDAL; SOUMYAJIT ;   et al. | 2015-11-12 |
Nmr Probe And Methods Of Use App 20150253454 - Song; Yi-Qiao ;   et al. | 2015-09-10 |
Three or more multiple figure-eight coils for NMR well-logging measurements with azimuthal directional sensitivity Grant 9,069,098 - Hopper , et al. June 30, 2 | 2015-06-30 |
Methods For Compositional Analysis Of Downhole Fluids Using Data From Nmr And Other Tools App 20150168585 - BENNETT; NICHOLAS N. ;   et al. | 2015-06-18 |
Methods For Compositional Analysis Of Downhole Fluids Using Data From Nmr And Other Tools App 20150168586 - FREED; Denise E. ;   et al. | 2015-06-18 |
System and method for measuring borehole geometry while drilling Grant 8,941,383 - Hopper , et al. January 27, 2 | 2015-01-27 |
Rotating Frame Pulsed Nuclear Magnetic Resonance Spectroscopy App 20140232391 - KADAYAM VISWANATHAN; RAVINATH KAUSIK ;   et al. | 2014-08-21 |
Obtaining Wettability From T1 And T2 Measurements App 20130325348 - VALORI; ANDREA ;   et al. | 2013-12-05 |
Method And System For Applying Nmr Pulse Sequences With Interacting Shells App 20130234704 - Hurlimann; MARTIN D. ;   et al. | 2013-09-12 |
Refocusing Pulses And Excitation Pulses For Nmr Logging App 20130162247 - HURLIMANN; MARTIN D. ;   et al. | 2013-06-27 |
System and Method for Measuring Borehole Geometry While Drilling App 20130106413 - Hopper; Tim ;   et al. | 2013-05-02 |
Multiple Coils for NMR Well-logging Measurements App 20130063142 - Hopper; Timothy ;   et al. | 2013-03-14 |
Continuous wettability logging based on NMR measurements Grant 8,362,767 - Hurlimann , et al. January 29, 2 | 2013-01-29 |
Continuous wettability logging based on NMR measurements Grant 8,278,922 - Hurlimann , et al. October 2, 2 | 2012-10-02 |
Continuous Wettability Logging Based On Nmr Measurements App 20120229135 - Hurlimann; Martin D. ;   et al. | 2012-09-13 |
Non-resonant Logging Tools App 20120001629 - HOPPER; TIM ;   et al. | 2012-01-05 |
Continuous Wettability Logging Based On Nmr Measurements App 20100237860 - Hurlimann; Martin D. ;   et al. | 2010-09-23 |
Tuning of nuclear magnetic resonance logging tools Grant 7,026,814 - Bordon , et al. April 11, 2 | 2006-04-11 |
Tuning of nuclear magnetic resonance logging tools App 20050156592 - Bordon, Ernesto ;   et al. | 2005-07-21 |
Method and apparatus for NMR measurement of magnetic materials Grant 6,894,493 - Hurlimann , et al. May 17, 2 | 2005-05-17 |
Nuclear magnetic resonance method and logging apparatus for fluid analysis Grant 6,891,369 - Hurlimann , et al. May 10, 2 | 2005-05-10 |
Method and apparatus for NMR measurement of wettability Grant 6,883,702 - Hurlimann , et al. April 26, 2 | 2005-04-26 |
Method and apparatus for rapid characterization of diffusion Grant 6,850,060 - Song , et al. February 1, 2 | 2005-02-01 |
Method and apparatus for NMR measurement of magnetic materials App 20040164735 - Hurlimann, Martin D. ;   et al. | 2004-08-26 |
Determining wettability of an oil reservoir using borehole NMR measurements Grant 6,765,380 - Freedman , et al. July 20, 2 | 2004-07-20 |
Determining Wettability Of An Oil Reservoir Using Borehole Nmr Measurements App 20040000905 - Freedman, Robert ;   et al. | 2004-01-01 |
Method and apparatus for rapid characterization of diffusion App 20030197506 - Song, Yi-Qiao ;   et al. | 2003-10-23 |
Nuclear magnetic resonance method and logging apparatus App 20030178994 - Hurlimann, Martin D. ;   et al. | 2003-09-25 |
Method and apparatus for NMR measurement of wettability App 20030169040 - Hurlimann, Martin D. ;   et al. | 2003-09-11 |
Nuclear magnetic resonance methods for extracting information about a fluid in a rock Grant 6,597,171 - Hurlimann , et al. July 22, 2 | 2003-07-22 |
Nuclear magnetic resonance logging based on steady-state free precession Grant 6,580,272 - Freed , et al. June 17, 2 | 2003-06-17 |
Nuclear magnetic resonance method and logging apparatus Grant 6,570,382 - Hurlimann , et al. May 27, 2 | 2003-05-27 |
Nuclear Magnetic Resonance Logging Based On Steady-state Free Precession App 20030085702 - Freed, Denise ;   et al. | 2003-05-08 |
Well logging technique and apparatus for determining pore characteristics of earth formations using magnetic resonance Grant 6,522,136 - Hurlimann , et al. February 18, 2 | 2003-02-18 |
Nuclear magnetic resonance measurements and methods of analyzing nuclear magnetic resonance data Grant 6,462,542 - Venkataramanan , et al. October 8, 2 | 2002-10-08 |
Nuclear magnetic resonance methods for extracting information about a fluid in a rock App 20020105326 - Hurlimann, Martin D. ;   et al. | 2002-08-08 |
Nuclear magnetic resonance measurements and methods of analyzing nuclear magnetic resonance data App 20020067164 - Venkataramanan, Lalitha ;   et al. | 2002-06-06 |
NMR logging tool and method for fast logging Grant 6,140,818 - Hurlimann October 31, 2 | 2000-10-31 |