Page 291 - Geology and Geochemistry of Oil and Gas

MODELS OF DYNAMIC GEOLOGIC SYSTEMS 253

Fig. 11.25. Relationship between porosity and depth of burial for shales and argillaceous sediments.
1 – Proshlyakov (1960); 2 – Meade (1966); 3 – Athy (1930); 4 – Hosoi (1963); 5 – Hedberg (1936);
6 – Dickinson (1953); 7 – Magara (1968); 8 – Weller (1959); 9 – Ham (1966); 10 – Foster and Whalen
(1966) (after Rieke and Chilingarian, 1974).

for the Devonian deposits (Weller, 1959), b ¼ 58:5; for the Mesozoic deposits
c
(Proshlyakov, 1974; Dobrynin, 1970), b ¼ 42:8; for the Oligocene–Miocene deposits
c
(Vassoyevich and Bronovitskiy, 1962), b ¼ 33:6; for the Middle Pliocene deposits
c
(Durmishyan, 1973) of Absheron Peninsula and Absheron Archipelago, b ¼ 42:1;
c
for the southwestern part of Absheron Peninsula and northern part of Baku Archi-
pelago, b ¼ 27:1; and for the southern part of Baku Archipelago, b ¼ 19:3.
c
c
As shown in Eq. 11.78, with the exception of depth, the effects of all other
variables are included in the coefficient of irreversible compaction b . Correlation of
c
this coefficient with the geologic age and lithology becomes apparent upon com-
parison of curves of different geologic age obtained for areas having different litho-
logies (Fig. 11.26).