LAPSE:2023.25532v1
Published Article
LAPSE:2023.25532v1
Microscale Evaluation of Tight Oil Mobility: Insights from Pore Network Simulation
Yongchao Wang, Yanqing Xia, Zihui Feng, Hongmei Shao, Junli Qiu, Suping Ma, Jiaqiang Zhang, Haoyuan Jiang, Jiyong Li, Bo Gao, Lingling Li
March 28, 2023
Pore network modeling based on digital rock is employed to evaluate the mobility of shale oil in Qingshankou Formation, Songliao Basin, China. Computerized tomography technology is adopted in this work to reconstruct the digital rock of shale core. The pore network model is generated based on the computerized tomography data. We simulate the dynamics of fluid flow in a pore network model to evaluate the mobility of fluid in shale formation. The results show that the relative permeability of oil phase increases slowly in the initial stage of the displacement process, which is mainly caused by the poor continuity of the oil phase. In the later stages, with the increase in the oil phase continuity, the range of relative permeability increases. With the increase of organic matter content, the permeability of the water phase remains unchanged at low water saturation, but gradually increases at high water saturation. At the same time, it can be seen that, with the increase in organic matter content, the isosmotic point of the oil−water phase permeability shifts to the left, indicating that the wettability to water phase gradually weakens.
Keywords
mobility, pore network model, relative permeability, shale oil
Subject
Suggested Citation
Wang Y, Xia Y, Feng Z, Shao H, Qiu J, Ma S, Zhang J, Jiang H, Li J, Gao B, Li L. Microscale Evaluation of Tight Oil Mobility: Insights from Pore Network Simulation. (2023). LAPSE:2023.25532v1
Author Affiliations
Wang Y: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNP
Xia Y: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Feng Z: Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China; Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China
Shao H: Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China; Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China
Qiu J: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Ma S: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
Zhang J: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
Jiang H: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
Li J: Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
Gao B: Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China; Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China
Li L: Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China; Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China
Journal Name
Energies
Volume
14
Issue
15
First Page
4580
Year
2021
Publication Date
2021-07-28
Published Version
ISSN
1996-1073
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PII: en14154580, Publication Type: Journal Article
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doi:10.3390/en14154580
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