Production Performance Analysis of Su-6 Well Block in Sulige Gas Field, Ordos Basin, China

As a tight sandstone gas reservoir of Su-6 well block in Sulige gas field, part of the gas wells have a poorer production performance with a faster decline rate of formation pressure and production, which is inconsistent with static reservoir parameters of gas well. In order to improve the productiv...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-11, Vol.603 (1), p.12001
Main Authors: Sun, Lin, Li, Xianwen, Chen, Baochun, Gu, Yonghong, Wang, Wenxiong, Zhao, Jinsheng
Format: Article
Language:English
Subjects:
Gas well
Production performance
Reservoir heterogeneity
Sandbody connectivity
Sulige gas field
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Summary:As a tight sandstone gas reservoir of Su-6 well block in Sulige gas field, part of the gas wells have a poorer production performance with a faster decline rate of formation pressure and production, which is inconsistent with static reservoir parameters of gas well. In order to improve the productivity of gas well, on the base of static and dynamic classification of 232 gas wells, the reasons of inconformity between production performance and static reservoir parameters are analyzed from the four aspects of sand body connectivity, reservoir heterogeneity, gas saturation and fluid accumulation in wellbore. The results show that the main reasons causing the inconformity are the strong heterogeneity and poor sand body connectivity, and the secondary reasons are fluid accumulation in wellbore and low gas saturation. The results of this paper is of great significance to improve the productivity of gas wells and guide the development of ultra-low permeability gas reservoir.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/603/1/012001