Analysis of Fracturing Effect of Small Mesh Fracture in C Encryption Block

Vertical well development is used in infill block C of a low permeability oilfield. With the extension of development time, the difficulty in tapping potential of block measures increases year by year, while the difficulty in selecting wells and layers for conventional fracturing increases, and the effect of oil increase decreases year by year. In 2021, infill adjustment was carried out. The initial daily liquid production strength of infill wells is relatively low, and it is urgent to explore new fracturing technology and tap potential of infill well measures [1, 2]. On the basis of fully investigating the successful experience of small fracture pattern fracturing in other similar oilfields, through field tests, better oil increasing effects have been achieved, and a set of well and layer selection standards for small fracture pattern fracturing in low permeability thin oil layers has been established, providing guidance and reference for the optimization of small fracture pattern fracturing in infill wells in the same type of blocks.