Patents by Inventor TIANMIN JIANG

TIANMIN JIANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240053503
    Abstract: Implementations described and claimed herein provide systems and methods for developing resources from a reservoir. In one implementation, obtaining nuclear magnetic resonance (NMR) log data is obtained for one or more wells of the reservoir. The NMR data is captured using one or more logging tools. An interpreted NMR log is generated by quantifying one or more fluid producibility parameters. The one or more fluid producibility parameters are quantified by processing the NMR log data using automated unsupervised machine learning. A production characterization of the reservoir is generated based on the interpreted NMR log, with the reservoir being developed based on the production characterization.
    Type: Application
    Filed: August 10, 2023
    Publication date: February 15, 2024
    Inventors: Tianmin Jiang, Ronald J.M. Bonnie
  • Publication number: 20230236337
    Abstract: Systems and method for nuclear magnetic resonance (NMR) well logging use an inversion pulse sequence with a Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence to improve spin magnetization calculations. Improved Bloch equation-based calculations consider conditions where a longitudinal relaxation time and a transverse relaxation time of the hydrogen nuclei (e.g., of a subterranean hydrocarbon pool and/or water) are within an order of magnitude of pulse durations for the inversion pulse sequence and the CPMG pulse sequence. Accordingly, an NMR response to the inversion pulse sequence and the CPMG pulse can be detected and used to calculate one or more spin magnetization values with higher accuracy amplitudes. Reservoir characteristics are determined based on the one or more spin magnetization values. As such, improved well operations (e.g., selecting a drilling site, determining a drilling depth, and the like) can be performed.
    Type: Application
    Filed: January 24, 2023
    Publication date: July 27, 2023
    Inventors: Tianmin Jiang, Ronald J.M. Bonnie
  • Publication number: 20230152255
    Abstract: Implementations described and claimed herein provide systems and methods for determining surfactant impact on reservoir wettability. In one implementation, a nuclear magnetic resonance T1 measurement of a sample is obtained before surfactant imbibition is applied to the sample, and a second nuclear magnetic T2 measurement of the sample is made after forced imbibition of the surfactant. Moreover, another nuclear magnetic resonance T1 measurement (e.g., omitting surfactant imbibition) can be obtained simultaneously with the nuclear magnetic resonance T2 measurement using a twin core sample. The nuclear magnetic resonance T1 measurement and the nuclear magnetic resonance T2 measurement are captured under simulated reservoir conditions. A fluid typing map is generated using the nuclear magnetic resonance T1 measurement and the nuclear magnetic resonance T2 measurement. An impact of the surfactant on fluid producibility is determined based on the fluid typing map.
    Type: Application
    Filed: November 16, 2022
    Publication date: May 18, 2023
    Inventors: Hesham F. El-Sobky, Ronald J.M. Bonnie, Tianmin Jiang
  • Patent number: 11435304
    Abstract: Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: September 6, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Vivek Anand, Ravinath Kausik Kadayam Viswanathan, Tianmin Jiang, Erik Rylander, Mansoor Ali, Richard E. Lewis
  • Publication number: 20190383757
    Abstract: Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Inventors: Vivek Anand, Ravinath Kausik Kadayam Viswanathan, Tianmin Jiang, Erik Rylander, Mansoor Ali, Richard E. Lewis
  • Patent number: 10401313
    Abstract: Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 3, 2019
    Assignee: Schlumberger Technology Corporation
    Inventors: Vivek Anand, Ravinath Kausik Kadayam Viswanathan, Tianmin Jiang, Erik Rylander, Mansoor Ali, Richard E. Lewis
  • Publication number: 20170343497
    Abstract: Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 30, 2017
    Inventors: Vivek Anand, Ravinath Kausik Kadayam Viswanathan, Tianmin Jiang, Erik Rylander, Mansoor Ali, Richard E. Lewis
  • Publication number: 20100243534
    Abstract: A method for processing a bitumen froth comprising bitumen, water and solids including fine solids for reducing the solids concentration in diluted bitumen is provided comprising diluting the bitumen froth with a hydrocarbon diluent to form a dilfroth; adding a sufficient amount of a silicate to the dilfroth to cause a substantial amount of fine solids to associate with the water instead of the diluted bitumen; and allowing the diluted bitumen to separate from the water containing the substantial amount of fine solids to produce a dilbit having less than 3 percent by weight solids.
    Type: Application
    Filed: March 26, 2009
    Publication date: September 30, 2010
    Inventors: YIN MING SAMSON NG, BRIAN ALLEN KNAPPER, KEVIN MORAN, GEORGE JIRO HIRASAKI, CLARENCE A. MILLER, TIANMIN JIANG