Research Article
Decline Law of Gas Wells in Different Classes of Tight Sandstone Gas Reservoirs in Sulige Area
@INPROCEEDINGS{10.4108/eai.24-11-2023.2343424, author={Jie Liu and Liang Zhao and Yan Li and Yinghong Li and Yongjie Zhang and Li Peng and Xuehua Peng and Changqing Li and Xiao Hu and Yan Wang}, title={Decline Law of Gas Wells in Different Classes of Tight Sandstone Gas Reservoirs in Sulige Area}, proceedings={Proceedings of the International Conference on Industrial Design and Environmental Engineering, IDEE 2023, November 24--26, 2023, Zhengzhou, China}, publisher={EAI}, proceedings_a={IDEE}, year={2024}, month={2}, keywords={sulige gas field; gas well production; decline type; decline law}, doi={10.4108/eai.24-11-2023.2343424} }- Jie Liu
Liang Zhao
Yan Li
Yinghong Li
Yongjie Zhang
Li Peng
Xuehua Peng
Changqing Li
Xiao Hu
Yan Wang
Year: 2024
Decline Law of Gas Wells in Different Classes of Tight Sandstone Gas Reservoirs in Sulige Area
IDEE
EAI
DOI: 10.4108/eai.24-11-2023.2343424
Abstract
Taking a tight sandstone gas reservoir in Sulige area as an example, Arps analysis met hod is used to calculate production decline, and three production decline modes of exponential, hyperbolic and harmonic are explained in detail. The study shows that the decline law of different types of gas wells in a tight sandstone gas reservoir in Sulige area is similar, with exponential decline in the early stage of production and hyperbolic decline in the middle and later stages of production. Different types of reservoirs have different time to enter the boundary control flow, and class I gas well is shorter than class II gas well is shorter than class III gas well. The decline rate of gas wells in different reservoir types is different in different stages, but the decline rate in life cycle is basically the same.