Study on fracture propagation behavior in ultra-heavy oil reservoirs based on true triaxial experiments

LIN Botao,SHI Can,ZHUANG Li,YOU Hongjuan,HUANG Yong

Table 1 Samples and test parameters.

No. Lithology Injection rate/ (mm3?s-1) Fracturing fluid viscosity/(mPa?s) Perforation 1 Reservoir 320 1 2 2 Reservoir-interlayer-reservoir 320 1 2 3 Reservoir-interlayer-reservoir 960 1 2 4 Reservoir-interlayer-reservoir 320 150 2 5 Reservoir-interlayer-reservoir 320 1 4 6 Interlayer-reservoir-interlayer 320 1 2