In this paper, a reservoir simulation study was conducted for the characterization and prediction of gas breakthrough during the development of cyclic steam and gas stimulation (CSGS) for a horizontal well. A new concept named the gas breakthrough coefficient (GBC) was proposed to characterize the gas breakthrough degree quantitatively, and a regression model and two calibration curves were established to predict the gas breakthrough degree. The method of foam plugging to inhibit gas breakthrough was also discussed. It was found that the gas breakthrough degree could be well characterized by the GBC and distinguished as four types: weak, moderate, strong, and severe. The regression model and calibration curves could also be used to predict the gas breakthrough degree under different reservoir and development conditions. Foam plugging was found to be effective to inhibit gas breakthrough when the gas breakthrough degree was moderate or strong.
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Research-Article
Characterization and Prediction of Gas Breakthrough With Cyclic Steam and Gas Stimulation Technique in an Offshore Heavy Oil Reservoir
Haijun Wu,
Haijun Wu
State Key Laboratory of Heavy Oil Processing,
China University of Petroleum,
Qingdao 266580, China;
China University of Petroleum,
Qingdao 266580, China;
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Qingjun Du,
Qingjun Du
School of Geosciences,
China University of Petroleum,
Qingdao 266580, China
e-mail: duqingjun@upc.edu.cn
China University of Petroleum,
Qingdao 266580, China
e-mail: duqingjun@upc.edu.cn
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Jian Hou,
Jian Hou
State Key Laboratory of Heavy Oil Processing,
China University of Petroleum,
Qingdao 266580, China;
China University of Petroleum,
Qingdao 266580, China;
School of Petroleum Engineering,
China University of Petroleum,
Qingdao 266580, China
e-mail: houjian@upc.edu.cn
China University of Petroleum,
Qingdao 266580, China
e-mail: houjian@upc.edu.cn
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Jingsong Li,
Jingsong Li
Research Institute of Oilfield Production,
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: lijs5@cosl.com.cn
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: lijs5@cosl.com.cn
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Ruxiang Gong,
Ruxiang Gong
Research Institute of Oilfield Production,
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: gongrx@cosl.com.cn
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: gongrx@cosl.com.cn
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Yongge Liu,
Yongge Liu
School of Petroleum Engineering,
China University of Petroleum,
Qingdao 266580, China
e-mail: yg.leo@foxmail.com
China University of Petroleum,
Qingdao 266580, China
e-mail: yg.leo@foxmail.com
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Zhitao Li
Zhitao Li
School of Petroleum Engineering,
China University of Petroleum,
Qingdao 266580, China
e-mail: air_lzt@163.com
China University of Petroleum,
Qingdao 266580, China
e-mail: air_lzt@163.com
Search for other works by this author on:
Haijun Wu
State Key Laboratory of Heavy Oil Processing,
China University of Petroleum,
Qingdao 266580, China;
China University of Petroleum,
Qingdao 266580, China;
Qingjun Du
School of Geosciences,
China University of Petroleum,
Qingdao 266580, China
e-mail: duqingjun@upc.edu.cn
China University of Petroleum,
Qingdao 266580, China
e-mail: duqingjun@upc.edu.cn
Jian Hou
State Key Laboratory of Heavy Oil Processing,
China University of Petroleum,
Qingdao 266580, China;
China University of Petroleum,
Qingdao 266580, China;
School of Petroleum Engineering,
China University of Petroleum,
Qingdao 266580, China
e-mail: houjian@upc.edu.cn
China University of Petroleum,
Qingdao 266580, China
e-mail: houjian@upc.edu.cn
Jingsong Li
Research Institute of Oilfield Production,
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: lijs5@cosl.com.cn
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: lijs5@cosl.com.cn
Ruxiang Gong
Research Institute of Oilfield Production,
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: gongrx@cosl.com.cn
China Oilfield Services, Limited,
Tianjin 300450, China
e-mail: gongrx@cosl.com.cn
Yongge Liu
School of Petroleum Engineering,
China University of Petroleum,
Qingdao 266580, China
e-mail: yg.leo@foxmail.com
China University of Petroleum,
Qingdao 266580, China
e-mail: yg.leo@foxmail.com
Zhitao Li
School of Petroleum Engineering,
China University of Petroleum,
Qingdao 266580, China
e-mail: air_lzt@163.com
China University of Petroleum,
Qingdao 266580, China
e-mail: air_lzt@163.com
11
Contributed by the Petroleum Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received June 6, 2014; final manuscript received September 26, 2016; published online October 13, 2016. Assoc. Editor: Daoyong (Tony) Yang.
J. Energy Resour. Technol. May 2017, 139(3): 032801 (10 pages)
Published Online: October 13, 2016
Article history
Received:
June 6, 2014
Revised:
September 26, 2016
Citation
Wu, H., Du, Q., Hou, J., Li, J., Gong, R., Liu, Y., and Li, Z. (October 13, 2016). "Characterization and Prediction of Gas Breakthrough With Cyclic Steam and Gas Stimulation Technique in an Offshore Heavy Oil Reservoir." ASME. J. Energy Resour. Technol. May 2017; 139(3): 032801. https://doi.org/10.1115/1.4034857
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