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Mar 27, 2024

Production Characteristics and Importance of Uncertain Parameters of Water Huff-n-Puff for Volume Stimulation Horizontal Wells in Tight Oil Reservoirs

Authors: Bo Han, Ph.D. https://orcid.org/0000-0003-4149-0838 [email protected], Hui Gao [email protected], Zhiwei Zhai [email protected], Yang You [email protected], Nan Zhang, Ph.D. https://orcid.org/0000-0002-8482-4407 [email protected], Chen Wang [email protected], Zhilin Cheng [email protected], and Teng Li [email protected]Author Affiliations
Publication: Journal of Energy Engineering
Volume 150, Issue 3
https://doi.org/10.1061/JLEED9.EYENG-5202
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Abstract

Water huff-n-puff is considered to be an available method to exploit unconventional oil reservoirs, which can significantly promote the reservoir pressure and facilitate water–oil exchange under the imbibition effect. To explore the production characteristics and well performance during water huff-n-puff in the Huanjiang oil field that is a tight oil reservoir, field tests were carried out and production characteristics and well performances were investigated. Moreover, reservoir simulation works were conducted to study the various factors that influence the water huff-n-puff performance. Furthermore, sensitivity analysis for various factors was carried out with the tornado diagram method and the importance of different influencing factors was ranked quantitatively. The results demonstrate that water huff-n-puff has great significance to effectively replenish reservoir pressure as well as promote oil production. Field tests demonstrate that the average liquid rate as well as the oil rate of the horizontal wells increased by 5.94 and 1.18  m3/day, respectively. Considering the different oil production characteristics, the oil production process can be classified into three different stages. The levels importance of different influencing factors were ranked as rock wettability, water huff-n-puff cycles, water injection volume, hydraulic fracturing sections, well position, and soaking time.

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Data Availability Statement

All data, models, or code generated or used during the study are available from the corresponding author upon reasonable request.

Acknowledgments

We would like to acknowledge the financial supports from the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (2022L600), the Fundamental Research Program of Shanxi Province (202103021224333), and the Xi’an Shiyou University Graduate Innovation and Practice Ability Training Plan (YCS23112011).

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Information & Authors

Information

Published In

Go to Journal of Energy Engineering
Journal of Energy Engineering
Volume 150 • Issue 3 • June 2024

Copyright

© 2024 American Society of Civil Engineers.

History

Received: Jul 17, 2023
Accepted: Dec 27, 2023
Published online: Mar 27, 2024
Published in print: Jun 1, 2024
Discussion open until: Aug 27, 2024

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ASCE Technical Topics:

  1. Analysis (by type)
  2. Continuum mechanics
  3. Dynamics (solid mechanics)
  4. Energy infrastructure
  5. Engineering fundamentals
  6. Engineering mechanics
  7. Field tests
  8. Fracture mechanics
  9. Groundwater
  10. Hydraulic engineering
  11. Hydraulic fracturing
  12. Hydraulic structures
  13. Infrastructure
  14. Lifeline systems
  15. Pressure (type)
  16. Reservoirs
  17. Sensitivity analysis
  18. Solid mechanics
  19. Tests (by type)
  20. Water (by type)
  21. Water and water resources
  22. Water management
  23. Water pressure
  24. Wells (oil and gas)
  25. Wells (water)

Authors

Affiliations

Bo Han, Ph.D. https://orcid.org/0000-0003-4149-0838 [email protected]
School of Petroleum Engineering, Xi’an Shiyou Univ., Xi’an 710065, China; Faculty of Mining Engineering, Shanxi Institute of Energy, Taiyuan 030000, China; Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an 710065, China; Xi’an Key Laboratory of Tight Oil (Shale Oil) Development, No. 18, East Section of Dianzi Second Rd., Xi’an 710065, China. ORCID: https://orcid.org/0000-0003-4149-0838. Email: [email protected]
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Hui Gao [email protected]
Professor, School of Petroleum Engineering, Xi’an Shiyou Univ., Xi’an 710065, China; Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an 710065, China; Xi’an Key Laboratory of Tight Oil (Shale Oil) Development, No. 18, East Section of Dianzi Second Rd., Xi’an 710065, China (corresponding author) Email: [email protected]
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Zhiwei Zhai [email protected]
Professor, Faculty of Mining Engineering, Shanxi Institute of Energy, Taiyuan 030000, China; Technical Innovation Center for Three Gas Co-Production of Shanxi Province, No. 5, Huazhang North St., Taiyuan 030008, China; Laboratory of Coalbed Methane Joint Extraction Ground and Underground, Shanxi Institute of Energy, Taiyuan 030002, China. Email: [email protected]
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Yang You [email protected]
Senior Engineer, Research Institute of Shanxi Yanchang Petroleum (Group) Company Ltd., No. 61, Tangyan Rd., Xi’an 710075, China. Email: [email protected]
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Nan Zhang, Ph.D. https://orcid.org/0000-0002-8482-4407 [email protected]
Dept. of Electrical Engineering and Computer Science, Univ. of Stavanger, Stavanger 4036, Norway. ORCID: https://orcid.org/0000-0002-8482-4407. Email: [email protected]
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Chen Wang [email protected]
Associate Professor, School of Petroleum Engineering, Xi’an Shiyou Univ., Xi’an 710065, China; Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an 710065, China; Xi’an Key Laboratory of Tight Oil (Shale Oil) Development, No. 18, East Section of Dianzi Second Rd., Xi’an 710065, China. Email: [email protected]
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Zhilin Cheng [email protected]
Associate Professor, School of Petroleum Engineering, Xi’an Shiyou Univ., Xi’an 710065, China; Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an 710065, China; Xi’an Key Laboratory of Tight Oil (Shale Oil) Development, No. 18, East Section of Dianzi Second Rd., Xi’an 710065, China. Email: [email protected]
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Teng Li [email protected]
Associate Professor, School of Petroleum Engineering, Xi’an Shiyou Univ., Xi’an 710065, China; Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an 710065, China; Xi’an Key Laboratory of Tight Oil (Shale Oil) Development, No. 18, East Section of Dianzi Second Rd., Xi’an 710065, China. Email: [email protected]
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