A Model for Stress Sensitivity Measured by Liquid in Tight Oil Reservoirs

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2015, Vol. 32 ›› Issue (3): 334-342.

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A Model for Stress Sensitivity Measured by Liquid in Tight Oil Reservoirs

TIAN Xiaofeng¹, CHENG Linsong¹, LI Chunlan¹, LI Caiyun², ZHANG Miaoyi³, JIANG Liwei³, HOU Tao⁴, LI Qiu⁵, WANG Hanlin⁶

1. China University of Petroleum Beijing, Department of Petroleum Engineering, Beijing 102249, China;
2. Reservoir Department, Research Institute of Petroleum Exploration and Development of Changqing Field, PetroChina, Xian, Shanxi 710021, China;
3. China University of Petroleum Beijing, College of Geosciences, Beijing 102249, China;
4. Coalbed Methane Development Company of Huabei Oilfield Company, PetroChina, Jincheng, Shanxi 048000, China;
5. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
6. Research Institute, CNOOC Ltd. -Shenzhen, Guangzhou, Guangdong 510240, China

Received:2014-04-17 Revised:2014-08-11 Online:2015-05-25 Published:2015-05-25

Abstract

Abstract: A model to calculate stress sensitivity is established based on theory of accumulation of geology, geomechanics and theory of flow through porous media. Compared with experimental results, the model is accurate and reliable. Distribution range of tight oil reservoir in Daqing Field is narrower than that of Changqing Field. It results in that stress sensitivity of Daqing Field is severer than that of Chaingqing Field. And productivity of Daqing Field is lower than that of Changqing Field. We make a quantitative description on mechanism of stress sensitivity in tight oil reservoirs.

Key words: tight oil reservoir, boundary layer, stress sensitivity, pore-throat distribution

CLC Number:

TE312

TIAN Xiaofeng, CHENG Linsong, LI Chunlan, LI Caiyun, ZHANG Miaoyi, JIANG Liwei, HOU Tao, LI Qiu, WANG Hanlin. A Model for Stress Sensitivity Measured by Liquid in Tight Oil Reservoirs[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2015, 32(3): 334-342.

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A Model for Stress Sensitivity Measured by Liquid in Tight Oil Reservoirs

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