非常规油藏蓄能体积压裂的合理压裂规模研究OA

Energy storage volume fracturing is the main stimulation and transformation technology of tight oil and shale oil,and it has become the main method in early development stage.According to the material bal-ance principle,the balance equation of energy storage volume fracturing in unsaturated reservoir is estab-lished.It can predict the formation pressure variation and coefficient with the volume of material entering the ground after fracturing,and solve the problem of quantitative prediction of the volume of material entering the ground and the volume of liquid entering the ground after fracturing,and it is beneficial to optimize the scale of fracturing.According to the statistical analysis and numerical model prediction of the average daily oil production and the invalid fluid displacement after the volume fracturing of the horizontal wells of tight oil and shale oil,it is considered that the injection strength of 15-17 m3/m is reasonable.The results can be used for reference to determine the reasonable fracturing scale and is helpful for the economic benefits of un-conventional oil reservoir development.