期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：227
期号：4
页码：042035
DOI：10.1088/1755-1315/227/4/042035
出版社：IOP Publishing
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.
