《Table 3.Comparison of cumulative oil production increment with different refracturing methods.》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《"Optimization of refracturing timing for horizontal wells in tight oil reservoirs: A case study of Cretaceous Qingshankou Formation, Songliao Basin, NE China"》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

Four refracturing methods were proposed based on the hydraulic fracture parameters and remaining oil distribution after initial fracturing:refracturing of the preexisting fractures，preexisting fracture extension，inter-fracture treatment，and temporary plugging and diverting inside fractures（Fig.7）.The aims were to connect more remaining oil zones and increase production by restoring the conductivity of preexisting fractures and adding new fractures.In the refracturing productivity forecasting model，seven fracturing clusters were designed for each of the four methods and the designed parameters were:fracture half-length of 300 m，conductivity of 30μm2?cm，stable bottom-hole flowing pressure of 8 MPa，and simulated production period of 5 years.The stimulation effects of the four methods were compared（Fig.8，Fig.9，and Table 3）.