8[1]Murray G H. Quantitative fracture study, Sanish pool, Mckenzie county, north Dakota[J]. AAPG Bulletin, 1968, 52(1) :57 - 65.
9[15]Nelson R A. Geologic analysis of naturally fractured reservoirs[M]. Houston: Gulf Publishing Company,1985: 12 - 17.
10[17]McQuillan H. Small-scale fracture density in Asmari Formation of southwest Iran and its relation to bed thickness and structural setting[J]. AAPG Bulletin,1973,57(4):2 367-2 385.
