Patent | Date |
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Use of natural low-level radioactivity of raw materials to evaluate gravel pack and cement placement in wells Grant 11,384,630 - Zhang , et al. July 12, 2 | 2022-07-12 |
Capture gamma ray spectroscopy for analyzing gravel-packs, frac-packs and cement Grant 11,131,788 - Zhang , et al. September 28, 2 | 2021-09-28 |
Systems And Methods For Differentiating Non-radioactive Tracers Downhole App 20210285320 - ZHANG; Jeremy ;   et al. | 2021-09-16 |
Methods For Differentiating And Quantifying Non-radioactive Tracers Downhole App 20210254452 - Zhang; Jeremy ;   et al. | 2021-08-19 |
Identification of cement in subterranean borehole regions using a ratio of capture to inelastic gamma rays Grant 11,078,771 - Han , et al. August 3, 2 | 2021-08-03 |
Systems and methods for differentiating non-radioactive tracers downhole Grant 11,015,437 - Zhang , et al. May 25, 2 | 2021-05-25 |
Non-radioactive tracers to evaluate fracturing procedures Grant 10,655,445 - Zhang , et al. | 2020-05-19 |
Systems And Methods For Differentiating Non-radioactive Tracers Downhole App 20200123895 - ZHANG; Jeremy ;   et al. | 2020-04-23 |
Use Of Natural Low-level Radioactivity Of Raw Materials To Evaluate Gravel Pack And Cement Placement In Wells App 20200024939 - ZHANG; Qianmei ;   et al. | 2020-01-23 |
Use of natural low-level radioactivity of raw materials to evaluate gravel pack and cement placement in wells Grant 10,344,581 - Zhang , et al. July 9, 2 | 2019-07-09 |
Identification of proppant in subterranean fracture zones using a ratio of capture to inelastic gamma rays Grant 10,161,237 - Han , et al. Dec | 2018-12-25 |
Capture Gamma Ray Spectroscopy For Analyzing Gravel-packs, Frac-packs And Cement App 20170329041 - ZHANG; Qianmei (Jeremy) ;   et al. | 2017-11-16 |
Use Of Natural Low-level Radioactivity Of Raw Materials To Evaluate Gravel Pack And Cement Placement In Wells App 20160326865 - ZHANG; Qianmei ;   et al. | 2016-11-10 |
Identification Of Proppant In Subterranean Fracture Zones Using A Ratio Of Capture To Inelastic Gamma Rays App 20160024909 - Han; Xiaogang ;   et al. | 2016-01-28 |
Use of PNC tools to determine the depth and relative location of proppant in fractures and the near borehole region Grant 9,038,715 - Smith, Jr. , et al. May 26, 2 | 2015-05-26 |
Lithology and borehole condition independent methods for locating tagged proppant in induced subterranean formation fractures Grant 8,805,615 - Smith, Jr. August 12, 2 | 2014-08-12 |
Orbital downhole separator Grant 8,757,256 - Li , et al. June 24, 2 | 2014-06-24 |
Spectral identification of proppant in subterranean fracture zones Grant 8,648,309 - Smith, Jr. , et al. February 11, 2 | 2014-02-11 |
Use of PNC Tools to Determine the Depth and Relative Location of Proppant in Fractures and the Near Borehole Region App 20130292109 - Smith, JR.; Harry D. ;   et al. | 2013-11-07 |
Fluid separator with smart surface Grant 8,449,750 - Hamid , et al. May 28, 2 | 2013-05-28 |
Lithology and Borehole Condition Independent Methods For Locating Tagged Proppant in Induced Subterranean Formation Fractures App 20130062057 - Smith, JR.; Harry D. | 2013-03-14 |
Neural network training data selection using memory reduced cluster analysis for field model development Grant 8,374,974 - Chen , et al. February 12, 2 | 2013-02-12 |
Method of reservoir characterization and delineation based on observations of displacements at the earth's surface Grant 8,355,873 - Mese , et al. January 15, 2 | 2013-01-15 |
Methods of identifying high neutron capture cross section doped proppant in induced subterranean formation fractures Grant 8,234,072 - Smith, Jr. , et al. July 31, 2 | 2012-07-31 |
Fluid Separator with Smart Surface App 20120187030 - Hamid; Syed ;   et al. | 2012-07-26 |
Methods of identifying high neutron capture cross section doped proppant in induced subterranean formation fractures Grant 8,214,151 - Duenckel , et al. July 3, 2 | 2012-07-03 |
Fluid separator with smart surface Grant 8,211,284 - Hamid , et al. July 3, 2 | 2012-07-03 |
Spectral Identification Of Proppant In Subterranean Fracture Zones App 20120080588 - Smith, JR.; Harry D. ;   et al. | 2012-04-05 |
Method of logging a well using a thermal neutron absorbing material Grant 8,100,177 - Smith, Jr. , et al. January 24, 2 | 2012-01-24 |
Drilling, perforating and formation analysis Grant 7,938,175 - Skinner , et al. May 10, 2 | 2011-05-10 |
Methods Of Identifying High Neutron Capture Cross Section Doped Proppant In Induced Subterranean Formation Fractures App 20110001040 - Smith, JR.; Harry D. ;   et al. | 2011-01-06 |
Viscosity control and filtration of well fluids App 20100288708 - Sloan; Robert L. ;   et al. | 2010-11-18 |
Downhole oil and water separator and method Grant 7,823,635 - Wright , et al. November 2, 2 | 2010-11-02 |
Separating mixtures of oil and water Grant 7,736,518 - Smith , et al. June 15, 2 | 2010-06-15 |
Viscosity control and filtration of well fluids Grant 7,736,521 - Sloan , et al. June 15, 2 | 2010-06-15 |
Treatment of Cesium-Containing Fluids App 20090277633 - Smith; Kevin W. ;   et al. | 2009-11-12 |
Ensembles of neural networks with different input sets Grant 7,613,665 - Chen , et al. November 3, 2 | 2009-11-03 |
Neural network based well log synthesis with reduced usage of radioisotopic sources Grant 7,587,373 - Smith, Jr. , et al. September 8, 2 | 2009-09-08 |
Method Of Logging A Well Using A Thermal Neutron Absorbing Material App 20090205825 - Smith, JR.; Harry D. ;   et al. | 2009-08-20 |
Methods of Identifying High Neutron Capture Cross Section Doped Proppant in Induced Subterranean Formation Fractures App 20090210161 - Duenckel; Robert ;   et al. | 2009-08-20 |
Treatment of cesium-containing fluids Grant 7,568,523 - Smith , et al. August 4, 2 | 2009-08-04 |
Method of removing dissolved iron in aqueous systems App 20090184056 - Smith; Kevin W. ;   et al. | 2009-07-23 |
Method of removing dissolved iron in aqueous systems App 20090183922 - Smith; Kevin W. ;   et al. | 2009-07-23 |
Trifunctional membrane tube arrays App 20090166171 - Smith; Kevin W. ;   et al. | 2009-07-02 |
Conserving components of fluids Grant 7,546,874 - Smith , et al. June 16, 2 | 2009-06-16 |
Drilling, Perforating And Formation Analysis App 20090133871 - Skinner; Neal G. ;   et al. | 2009-05-28 |
Fluid Separator With Smart Surface App 20090127179 - Hamid; Syed ;   et al. | 2009-05-21 |
Assembly and method for determining thermal properties of a formation and forming a liner Grant 7,516,802 - Smith, Jr. April 14, 2 | 2009-04-14 |
Drilling, perforating and formation analysis Grant 7,490,664 - Skinner , et al. February 17, 2 | 2009-02-17 |
Fluid separator with smart surface Grant 7,462,274 - Hamid , et al. December 9, 2 | 2008-12-09 |
Assembly and method for determining thermal properties of a formation and forming a liner Grant 7,334,637 - Smith, Jr. February 26, 2 | 2008-02-26 |
Genetic algorithm based selection of neural network ensemble for processing well logging data Grant 7,280,987 - Chen , et al. October 9, 2 | 2007-10-09 |
Determination of thermal properties of a formation Grant 7,086,484 - Smith, Jr. August 8, 2 | 2006-08-08 |
Method for monitoring the hydraulic fracturing of a subterranean formation Grant 5,635,712 - Scott, III , et al. June 3, 1 | 1997-06-03 |
Induced gamma ray spectroscopy well logging system Grant 5,434,408 - Smith, Jr. , et al. July 18, 1 | 1995-07-18 |
Technique for obtaining high vertical resolution formation capture cross sections from pulsed neutron logs Grant 4,990,774 - Smith, Jr. , et al. February 5, 1 | 1991-02-05 |
Method and apparatus for reducing radioactive hazards in well boreholes Grant 4,857,728 - Smith, Jr. August 15, 1 | 1989-08-15 |
Method for determining depth of penetration of radioactive tracers in formation fractures Grant 4,825,073 - Smith, Jr. , et al. April 25, 1 | 1989-04-25 |
Method and apparatus for differentiating low porosity limestones from high porosity gas sands Grant 4,746,801 - Smith, Jr. , et al. May 24, 1 | 1988-05-24 |
Simultaneous neutron lifetime and oxygen activation and fluid sampling methods and apparatus to locate fluid flow in a cased well borehole Grant 4,737,636 - Smith, Jr. April 12, 1 | 1988-04-12 |
Method and apparatus for anomalous radioactive deposition compensation in spectral gamma ray well logging Grant 4,717,825 - Smith, Jr. , et al. January 5, 1 | 1988-01-05 |
Borehole compensation method and apparatus using variations in relative borehole components Grant 4,691,102 - Schultz , et al. September 1, 1 | 1987-09-01 |
Method and apparatus for dual-spaced fast/epithermal neutron porosity measurements Grant 4,631,405 - Smith, Jr. December 23, 1 | 1986-12-23 |
Measurement of formation porosity using fast neutron spectroscopy Grant 4,605,854 - Smith, Jr. August 12, 1 | 1986-08-12 |
Multi-function natural gamma ray logging system Grant 4,585,939 - Arnold , et al. April 29, 1 | 1986-04-29 |
Method for logging fluid flow rate, water fraction, and/or salinity of water flowing into a well Grant 4,574,193 - Arnold , et al. March 4, 1 | 1986-03-04 |
Earth formation density measurement from natural gamma ray spectral logs Grant 4,527,058 - Smith, Jr. July 2, 1 | 1985-07-02 |
Behind casing water flow detector Grant 4,524,272 - Paap , et al. June 18, 1 | 1985-06-18 |
Gamma ray spectral tool for borehole use Grant 4,504,736 - Smith, Jr. , et al. March 12, 1 | 1985-03-12 |
Method for monitoring drilling materials for gamma ray activity Grant 4,493,998 - Smith, Jr. , et al. January 15, 1 | 1985-01-15 |
Determining elemental concentrations and formation matrix type from natural gamma ray spectral logs Grant 4,492,863 - Smith, Jr. January 8, 1 | 1985-01-08 |
Neutron-inelastic gamma radiation well logging method and apparatus with background radiation accounted for Grant 4,454,420 - Smith, Jr. * June 12, 1 | 1984-06-12 |
Gain stabilized natural gamma ray detection of casing thickness in a borehole Grant 4,450,354 - Smith, Jr. , et al. May 22, 1 | 1984-05-22 |
Natural gamma ray logging with borehole effect compensation Grant 4,439,676 - Smith, Jr. , et al. March 27, 1 | 1984-03-27 |
Method for simultaneous measurement of borehole and formation neutron lifetimes Grant 4,424,444 - Smith, Jr. , et al. January 3, 1 | 1984-01-03 |
Method for simultaneous measurement of thermal neutron decay components Grant 4,409,481 - Smith, Jr. , et al. October 11, 1 | 1983-10-11 |
Formation tester Grant 4,375,164 - Dodge , et al. March 1, 1 | 1983-03-01 |
In situ measurement of gas content in formation fluid Grant 4,370,886 - Smith, Jr. , et al. February 1, 1 | 1983-02-01 |
Simultaneous gamma ray measurement of formation bulk density and casing thickness Grant 4,297,575 - Smith, Jr. , et al. October 27, 1 | 1981-10-27 |
Measuring oil and water cuts in a multiphase flowstream with elimination of the effects of gas in determining the liquid cuts Grant 4,200,789 - Arnold , et al. April 29, 1 | 1980-04-29 |
Earth formation porosity log using measurement of fast neutron energy spectrum Grant 4,134,011 - Smith, Jr. , et al. January 9, 1 | 1979-01-09 |
Thermal neutron die away logging system with optimized gating Grant 4,122,338 - Smith, Jr. , et al. October 24, 1 | 1978-10-24 |
Pulsed neutron porosity logging system Grant 4,122,340 - Smith, Jr. , et al. October 24, 1 | 1978-10-24 |
Behind casing water volume flow rate measurement using gamma ray spectral degradation Grant 4,032,778 - Paap , et al. June 28, 1 | 1977-06-28 |
Earth formation salinity by comparison of inelastic and capture gamma ray spectra Grant 4,020,342 - Smith, Jr. , et al. April 26, 1 | 1977-04-26 |
Simultaneous thermal neutron lifetime and boron content well log Grant 4,002,904 - Smith, Jr. , et al. January 11, 1 | 1977-01-11 |
Pulsed neutron logging system for inelastic scattering gamma rays with gain compensation Grant 3,939,343 - Schultz , et al. February 17, 1 | 1976-02-17 |
Inelastic Neutron Scattering Methods To Locate Coal And Oil Shale Zones Grant 3,849,646 - McKinlay , et al. November 19, 1 | 1974-11-19 |
Determination Of Borehole Washout By Use Of Inelastic Neutron Scattering Gamma Ray Measurements Grant 3,838,279 - Schultz , et al. September 24, 1 | 1974-09-24 |
Methods For Thermal Well Logging Grant 3,807,227 - Smith, Jr. April 30, 1 | 1974-04-30 |
Pulsed Neutron Logging With Background Compensation Grant 3,780,303 - Smith, Jr. , et al. December 18, 1 | 1973-12-18 |
Pulsed Neutron Logging Systems For Detecting Gas Zones Grant 3,780,301 - Smith, Jr. , et al. December 18, 1 | 1973-12-18 |