Genetic Types and Main Control Factors of Microfractures in Tight Oil Reservoirs of Jimsar Sag

Figure 19

The correlation diagram of microfractures and lithology: (a) microfracture surface density of sandy dolomite; (b) microfracture frequency of sandy dolomite; (c) microfracture surface density of micritic dolomite; (d) microfracture frequency of micritic dolomite; (e) microfracture surface density of dolomitic fine sandstone; (f) microfracture frequency of dolomitic fine sandstone; (g) microfracture surface density of argillaceous siltstone; (h) microfracture frequency of argillaceous siltstone; (i) microfracture surface density of mudstone; (j) microfracture frequency of mudstone.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)