Re-fracturing mode research for horizontal well in Chang 7 Tight Reservoir of Ordos Basin

3rd International Conference on Energy Engineering and Environmental Protection

能源学;生态环境科学

Liu, Lifeng^1 ; Ran, Qiquan^1 ; Kong, Jinping^1 ; Wang, Xin^2

PetroChina Research Institute of Petroleum Exploration and Development, Beijing

100083, China^1

Sinopec Research Institute of Petroleum Explorationand Production, Beijing

100083, China^2

关键词: Mode researches;    Oil reservoirs;    Ordos Basin;    Production time;    Refracturing;    Single well production;    Tigh treservoirs;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/227/4/042035/pdf
DOI  :  10.1088/1755-1315/227/4/042035

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Re-fracturing is one of the main methods to increase single well production and stable production time for horizontal wells in tight reservoir. The optimization of re-fracturing method is very important for improving the development efficiency of horizontal wells after the treating of re-fracturing. Taking Chang 7 tight Reservoir in Ordos Basin as an example, a model for predicting the productivity of horizontal wells after re-fracturing is established by numerical simulation, and the effect of horizontal well development under different fracturing modes is studied. The results show that the best perforation method for Chang 7 tight oil reservoir is to increase the new perforation position and only fracturing the new perforation section according to the fracturing cost and stimulation effect.