Nuclear magnetic resonance study on imbibition and stress sensitivity of lamellar shale oil reservoir

被引：8
|
作者：
Wei, Jianguang [1 ,2 ]
Fu, Lanqing [3 ,4 ]
Zhao, Guozhong [3 ,4 ]
Zhao, Xiaoqing [1 ,2 ]
Liu, Xinrong [3 ,4 ]
Wang, Anlun [1 ,2 ]
Wang, Yan [3 ,4 ]
Cao, Sheng [3 ,4 ]
Jin, Yuhan [3 ,4 ]
Yang, Fengrui [3 ,4 ]
Liu, Tianyang [3 ,4 ]
Yang, Ying [1 ,2 ]
机构：
[1] Northeast Petr Univ, Natl Key Lab Continental Shale Oil, Daqing 163318, Peoples R China
[2] Northeast Petr Univ, Key Lab Continental Shale Hydrocarbon Accumulat &, Minist Educ, Daqing 163318, Peoples R China
[3] PetroChina Daqing Oilfield Co Ltd, Explorat & Dev Res Inst, Daqing 163712, Peoples R China
[4] Heilongjiang Key Lab Reservoir Phys & Fluid Mech P, Daqing 163712, Peoples R China
来源：
ENERGY | 2023年 / 282卷
基金：
中国博士后科学基金; 黑龙江省自然科学基金;
关键词：
Lamellar shale oil; Imbibition phenomenon; Type of external fluid; Matrix & bedding permeability; Nuclear magnetic resonance; FRACTURING-FLUID MIGRATION; REAL-GAS MIXTURE; WATER IMBIBITION; SONGLIAO BASIN; GULONG SAG; TRANSPORT; PERFORMANCE; MECHANISMS; INJECTION; NANOPORES;
D O I：
10.1016/j.energy.2023.128872
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The imbibition phenomenon widely exists in the fracturing and production process of shale oil and gas. It is of great scientific and engineering significance to elaborate the mechanism of infiltration and its influencing factors. In this paper, the impact of imbibition fluid types is investigated, and the influence mechanism of fluid imbibition on matrix-bedding permeability is clarified. Results shown that (a). The total porosity of 18 # core under saturated formation water condition is 8.75%. The porosity of movable fluid is 7.36%. The total porosity under saturated strong acid is 9.74%. (b) The total porosity of shale under saturated formation water condition of 6-4 # core is 4.03%. The porosity of movable fluid is 3.73%. The total porosity under the condition of maximum damage of alkaline fluid is 3.47%. (c) Slick water has no effect on the total porosity of shale in the study area. The total porosity of 8 # core under saturated formation water is 3.19%. The porosity of movable fluid is 2.57%.
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页数：13
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