Practice and recognition of low permeability tight gas development in West Sichuan-taking Xinchang JS2 gas reservoir as an example

DOI

10.2991/iccte-16.2016.216How to use a DOI?

Keywords

West Sichuan area, Low-permeability tight, Horizontal well, Fracturing with sand, Segment fracturing, Development and practice.

Abstract

Although the low-permeability tight gas reservoirs in western Sichuan are widely distributed, of varied types, complex geological characteristics and difficult development, the reserves are of large scale and there is great potential for development. With the technology research breakthroughs of geography, development and production increase technology, this kind of gas reservoir can be developed in large scale, but at different development stages there are different challenges. In this paper, take the core technology challenges for Xinchang JS2 gas reservoir as the representative of low permeability tight gas reservoir, solution is given in aspect of geology, and development and yield increase process technology, three leaps are achieved from scattered distribution for storage permeability body to area distribution of favorable storage; three breakthroughs of yield increase process from straight well multilayer fracturing to horizontal well segment fracturing. In addition, large-scale yield and 9 years of high and stable yield are achieved, and the inherent awareness of people that tight gas reservoir has low rate of recovery rate (30%~ 50%) is revised. The recovery rate is expected to be above 55%, providing a reference for similar gas reservoir development experience and technology.

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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TY  - CONF
AU  - Zuping Xiang
AU  - Yongfei Wang
AU  - Linqing Liu
AU  - Zhonghua Chen
AU  - Xiaoliang Huang
AU  - Qianhua Xiao
PY  - 2016/01
DA  - 2016/01
TI  - Practice and recognition of low permeability tight gas development in West Sichuan-taking Xinchang JS2 gas reservoir as an example
BT  - Proceedings of the 2016 International Conference on Civil, Transportation and Environment
PB  - Atlantis Press
SP  - 1231
EP  - 1239
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-16.2016.216
DO  - 10.2991/iccte-16.2016.216
ID  - Xiang2016/01
ER  -