Page 106 - Origin and Prediction of Abnormal Formation Pressures

> 0 2 m < 5 z P 5 o II - 5 0 > 7 6 ia $2 m 2 2: > Z u 3 > s z N > 0 E
Statistics of abnormally high pore pressures in shales (APPS) determination for the fields of Apsheron and Baku Archipelagos and South-Apsheron offshore zone

Standard deviation, o, MPa/m 0.00168 0.00155 0.00150 0.00156 0.00202 0.00223 0.00210 0.001 11

modal 0.0135 0.0 135 0.0 145 0.01 65 0.0185 0.0185 0.0 185 0.0185

Pressure gradient (MPa/m) median average 0.0135 0.0136 0.0132 0.0132 0.0153 0.0156 0.0 165 0.0 166 0.0176 0.0171 0.0181 0.0 176 0.01 78 0.0 173 0.0184 0.0182

Number of determinations 353 35 74 232 600 39 1 99 1 646

Island. Khamamdag-Sea,

Island

(after Buryakovsky et al., 1986) Zhiloy Island, Oil Stones, Apsheron Bank Sangachaly-Sea-Duvannyy-Sea-Bulla Khamamdag-Sea, Garasu, Sangi-Mugan, Persiyanin Bank Sangachaly-Sea-Duvannyy-Sea-Bulla Persiyanin Bank

TABLE 3- 1 Oil and gas fields Peschanyy-Sea Southern, Southern-2 Bakhar Bulla-Sea