Title:
PORE-NETWORK-BASED GAS-LIQUID RELATIVE PERMEABILITY PREDICTION METHOD DURING FOAM DRAINAGE PROCESS
Document Type and Number:
WIPO Patent Application WO/2024/104508
Kind Code:
A1
Abstract:
A pore-network-based gas-liquid relative permeability prediction method during a foam drainage process, which method relates to the technical field of oil and gas field development. The method comprises: acquiring a pore throat radius distribution of a rock core, a pore throat length and a coordination number by means of a constant-speed mercury intrusion experiment and X-ray nano-CT scanning, and establishing a pore network model; by taking dynamic evolution of a foam liquid film and a viscosity effect of flowing foam into consideration, providing a dynamic memory invasion percolation method; simulating a foam drainage process in a porous medium by using the pore network model combined with the dynamic memory invasion percolation method; and on the basis of a flow field and a pressure field, calculating a gas-liquid relative permeability during the foam drainage process by using a Darcy-Weisbach equation. The method uses a foam drainage mechanism which takes dynamic evolution of a foam liquid film and a viscosity effect into consideration, such that accurate prediction of a gas-liquid relative permeability curve during a foam drainage process can be realized.
Inventors:
ZHAO JING (CN)
YANG JUN (CN)
HE YANFENG (CN)
PEI YUXIN (CN)
WANG SHIKAI (CN)
YANG JUN (CN)
HE YANFENG (CN)
PEI YUXIN (CN)
WANG SHIKAI (CN)
Application Number:
PCT/CN2024/072239
Publication Date:
May 23, 2024
Filing Date:
January 15, 2024
Export Citation:
Assignee:
UNIV CHANGZHOU (CN)
International Classes:
G01N15/08
Foreign References:
| CN116625902A | 2023-08-22 | |||
| CN113468829A | 2021-10-01 | |||
| CN115110945A | 2022-09-27 | |||
| US20210080371A1 | 2021-03-18 |
Other References:
ZHAO JING, TORABI FARSHID; YANG JUN: "Role of Viscous Forces in Foam Flow in Porous Media at the Pore Level", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, AMERICAN CHEMICAL SOCIETY, vol. 60, no. 7, 24 February 2021 (2021-02-24), pages 3156 - 3173, XP093170083, ISSN: 0888-5885, DOI: 10.1021/acs.iecr.0c05735
JIAN LEI, PAN BAO-ZHI; ZHANG LI-HUA: "Advance of microscopic flow simulation based on digital cores and pore network", PROGRESS IN GEOPHYSICS, ZHONGGUO KEXUEYUAN DIZHI YU DIQIU WULI YANJIUSUO, CN, vol. 33, no. 2, 22 January 2018 (2018-01-22), CN , XP093170105, ISSN: 1004-2903
JIAN LEI, PAN BAO-ZHI; ZHANG LI-HUA: "Advance of microscopic flow simulation based on digital cores and pore network", PROGRESS IN GEOPHYSICS, ZHONGGUO KEXUEYUAN DIZHI YU DIQIU WULI YANJIUSUO, CN, vol. 33, no. 2, 22 January 2018 (2018-01-22), CN , XP093170105, ISSN: 1004-2903
Attorney, Agent or Firm:
CHANGZHOU INNOVATION PATENT AGENCY (CN)
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