Flow Mechanism of Shale Oil Reservoir in Jimsar Sag

新疆石油地质 ›› 2019, Vol. 40 ›› Issue (zk(English) ): 695-700.

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Flow Mechanism of Shale Oil Reservoir in Jimsar Sag

WANG Ziqiang^a,b, LI Chuntao^c, ZHANG Daiyan^c, ZHANG Hao^a

PetroChina Xinjiang Oilfield Company, a. Research Institute of Experiment and Detection;
b. MOE International Joint Laboratory of Unconventional Oil and Gas (Northwest Research Center);
c. Research Institute of Exploration and Development, Karamay, Xinjiang 834000, China

收稿日期:2019-01-02 修回日期:2019-05-05 出版日期:2020-01-01 发布日期:2021-05-18

Flow Mechanism of Shale Oil Reservoir in Jimsar Sag

WANG Ziqiang^a,b, LI Chuntao^c, ZHANG Daiyan^c, ZHANG Hao^a

PetroChina Xinjiang Oilfield Company, a. Research Institute of Experiment and Detection;
b. MOE International Joint Laboratory of Unconventional Oil and Gas (Northwest Research Center);
c. Research Institute of Exploration and Development, Karamay, Xinjiang 834000, China

Received:2019-01-02 Revised:2019-05-05 Online:2020-01-01 Published:2021-05-18
About author:WANG Ziqiang, E-mail: wangzq_81@126.com

摘要/Abstract

摘要： To understand the rules of flow in shale oil reservoir, taking the Lucaogou formation of Jimsar sag in the Junggar basin as an example, the micro-pore structures and flow mechanism of the shale oil reservoir were studied by means of laboratory physical experiments and digital core technology. Based on the physical experiment of single-phase flow through shale oil cores, a non-linear mathematical model of single-phase flow based on starting pressure gradient and an empirical formula of permeability related to pore structure parameters were obtained. Digital core technology and Lattice Boltzmann method were used to simulate the single-phase fluid of shale oil and to realize the fine characterization of fluid flow. The results show that the relation between seepage velocity and pressure gradient in the shale oil reservoir has a typical non-Darcy flow characteristic, which is a cubic function relation with a good correlation.

关键词: Junggar basin, Jimsar sag, shale oil, digital core, reservoir, pore structure, flow mechanism

Abstract: To understand the rules of flow in shale oil reservoir, taking the Lucaogou formation of Jimsar sag in the Junggar basin as an example, the micro-pore structures and flow mechanism of the shale oil reservoir were studied by means of laboratory physical experiments and digital core technology. Based on the physical experiment of single-phase flow through shale oil cores, a non-linear mathematical model of single-phase flow based on starting pressure gradient and an empirical formula of permeability related to pore structure parameters were obtained. Digital core technology and Lattice Boltzmann method were used to simulate the single-phase fluid of shale oil and to realize the fine characterization of fluid flow. The results show that the relation between seepage velocity and pressure gradient in the shale oil reservoir has a typical non-Darcy flow characteristic, which is a cubic function relation with a good correlation.

Key words: Junggar basin, Jimsar sag, shale oil, digital core, reservoir, pore structure, flow mechanism

WANG Ziqiang, LI Chuntao, ZHANG Daiyan, ZHANG Hao. Flow Mechanism of Shale Oil Reservoir in Jimsar Sag[J]. 新疆石油地质, 2019, 40(zk(English) ): 695-700.

WANG Ziqiang, LI Chuntao, ZHANG Daiyan, ZHANG Hao. Flow Mechanism of Shale Oil Reservoir in Jimsar Sag[J]. Xinjiang Petroleum Geology, 2019, 40(zk(English) ): 695-700.

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Flow Mechanism of Shale Oil Reservoir in Jimsar Sag

Flow Mechanism of Shale Oil Reservoir in Jimsar Sag

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