Patents by Inventor Xinjun MAO

Xinjun MAO 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).

  • Shale oil analysis method and apparatus for continuously characterizing saturation of adsorbed oil and free oil
    Patent number: 11086044
    Abstract: A shale oil analysis method and apparatus for continuously characterizing saturation of adsorbed oil and free oil, comprising: obtain NMR T2 spectrum, NMR porosity, oil saturation and wettability indexes of a core samples, determine a lower limit value for the saturation calculation of the absorbed oil based on the NMR T2 spectrum, the NMR porosity, the oil saturation and wettability indices; determining a lower limit value for the saturation calculation of the free oil according to the bulk relaxation T2 spectrum of the crude oil of the well interval or an adjacent well interval and the NMR T2 spectrum of the core samples; calculating the saturation of the absorbed oil and the free oil, and analyzing the shale oil in the well interval to be analyzed. The solution realizes the quantitative and continuous characterization of the adsorbed oil and the free oil of the shale oil via well logs.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 10, 2021
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Dongming Zhi, Lichun Kuang, Xiaojun Wang, Zhongchun Sun, Zhijun Qin, Wei Wang, Ni Zhang, Xinjun Mao, Min Ouyang, Qiusheng Chang
  • SHALE OIL ANALYSIS METHOD AND APPARATUS FOR CONTINUOUSLY CHARACTERIZING SATURATION OF ADSORBED OIL AND FREE OIL
    Publication number: 20210079789
    Abstract: A shale oil analysis method and apparatus for continuously characterizing saturation of adsorbed oil and free oil, comprising: obtain NMR T2 spectrum, NMR porosity, oil saturation and wettability indexes of a core samples, determine a lower limit value for the saturation calculation of the absorbed oil based on the NMR T2 spectrum, the NMR porosity, the oil saturation and wettability indices; determining a lower limit value for the saturation calculation of the free oil according to the bulk relaxation T2 spectrum of the crude oil of the well interval or an adjacent well interval and the NMR T2 spectrum of the core samples; calculating the saturation of the absorbed oil and the free oil, and analyzing the shale oil in the well interval to be analyzed. The solution realizes the quantitative and continuous characterization of the adsorbed oil and the free oil of the shale oil via well logs.
    Type: Application
    Filed: December 30, 2019
    Publication date: March 18, 2021
    Applicant: PetroChina Company Limited
    Inventors: Dongming ZHI, Lichun KUANG, Xiaojun WANG, Zhongchun SUN, Zhijun QIN, Wei WANG, Ni ZHANG, Xinjun MAO, Min Ouyang, Qiusheng CHANG