Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)

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High production indexes and key factors influencing coalbed methane (CBM) horizontal well productivity

Authors
Yanhui Yang, Shu Tao, Yanlei Yang, Wei Tian, Yongping Zhang, Ning Wei
Corresponding Author
Yanhui Yang
Available Online November 2016.
DOI
10.2991/iceep-16.2016.13How to use a DOI?
Keywords
Fanzhuang block; horizontal well; geological factors; high production index
Abstract

To evaluate the development effects systematically, the coalbed methane (CBM) production performance of 58 horizontal wells in the Fanzhuang block of the Qinshui Basin was tracked and correlations between the gas rate per 100 m and the influencing factors were discussed by single and multiple factor analysis. The grey correlation analysis (GRA) was then applied to quantitatively evaluate the key geological factors influencing CBM horizontal well productivity. The results show that the order of geological factors influencing horizontal well productivity is burial depth, gas production capacity (C), gas production potential (P), ratio of critical desorption pressure to initial reservoir pressure (pc/pi), gas content, and thickness, where the gas production potential and capacity can reflect the comprehensive impacts of thickness, gas content, and permeability. The larger the gas production potential or capacity is, the better the gas productivity is. The high production indexes are the depth of 300~500m, pc/pi >0.6, P>130m4/t, C>60 mDžm4/t, and far away from the faults.

Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)
Series
Advances in Engineering Research
Publication Date
November 2016
ISBN
978-94-6252-253-4
ISSN
2352-5401
DOI
10.2991/iceep-16.2016.13How to use a DOI?
Copyright
© 2016, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Yanhui Yang
AU  - Shu Tao
AU  - Yanlei Yang
AU  - Wei Tian
AU  - Yongping Zhang
AU  - Ning Wei
PY  - 2016/11
DA  - 2016/11
TI  - High production indexes and key factors influencing coalbed methane (CBM) horizontal well productivity
BT  - Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)
PB  - Atlantis Press
SP  - 78
EP  - 84
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-16.2016.13
DO  - 10.2991/iceep-16.2016.13
ID  - Yang2016/11
ER  -