Study on identification method of tight sand gas and water in the Su54 Region of Sulige gas fileld
- DOI
- 10.2991/icmmct-16.2016.223How to use a DOI?
- Keywords
- Sulige gas fileld; Tight sandstone; low resistivity gas reservoir; gas and water identification.
- Abstract
The phenomenon of "low-resistivity" gas reservoir and "high-resistivity" water reservoir exist side by side, rapid changes of longitudinal resistivity of the water reservoir and gas and water mixed reservoir in the Su 54 area of Sugeli gas field which caused gas-water identification difficulty. First, the genesis of low-resistivity gas reservoir in tight sand had been analysed. And then, the crossplot acoustic-resistivity method, multiple discriminant analysis method and support vector machine method had been used on gas-water identification method in research. Finaly, the gas testing and production dynamic data had been used to verify. The study results show that: the additional conductivity of clay minerals in tight sand reservoir and mud invasion is the main reason for the low-resistivity gas reservoir. And the three gas-water identification methods based on gas testing and production dynamic data made a better recognition effect in practical application; especially the gas-water recognition precision of support vector machine method reaches 93%. This study provides a new thought for the gas-water identification of tight sand gas reservoir.
- 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
TY - CONF AU - Ping Fan AU - Ji Zhang AU - Hongqi Tan AU - Zhiqiang Duan AU - Zhiheng Liu AU - Qiangdong Huang AU - Han Luo PY - 2016/03 DA - 2016/03 TI - Study on identification method of tight sand gas and water in the Su54 Region of Sulige gas fileld BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology PB - Atlantis Press SP - 1127 EP - 1133 SN - 2352-5401 UR - https://doi.org/10.2991/icmmct-16.2016.223 DO - 10.2991/icmmct-16.2016.223 ID - Fan2016/03 ER -