Fig. 2

Triangular diagram and detrital composition diagram of the study area. (a) Triangular classification diagram of the sandstone in the Chang 8 reservoir, (b) histogram of the relative content of detrital components in the Chang 8 reservoir.

Triangular diagram and detrital composition diagram of the study area. (a) Triangular classification diagram of the sandstone in the Chang 8 reservoir, (b) histogram of the relative content of detrital components in the Chang 8 reservoir.