Research on the Effect of Fracturing Construction Parameters on Tight Oil Fracturing Production Based on Grey Relational Theory

Tight oil is another new hot spot in global unconventional oil and gas exploration and development, following shale gas. However, the extraction effect of tight hydraulic fracturing is greatly affected by factors such as formation factors, fracturing construction parameters, and the opening time of each oil well. This article analyzes the fracturing construction parameters and selects factors such as the number of fracturing sections, fracturing fluid dosage, fracturing sand dosage, and cluster spacing as the main fracturing construction parameters for analyzing the fracturing effect, using the grey correlation method to screen out the main influencing factors in the fracturing construction parameters. The results obtained from the calculation of the correlation between each fracturing construction parameter and oil production are relatively small, with a maximum correlation of 0.1011 between cluster spacing and oil production. The calculation results indicate that the cluster spacing in the fracturing construction parameters has a relatively significant impact on the production efficiency, but the fracturing construction parameters cannot fully affect the production efficiency of tight oil.