Abstract:
Main purpose of this dissertation is to evaluate the structure and hydrocarbon
potential using seismic and well log data of Miano area Taluka Saleh Pat, District
Sukkur, Central Indus basin, Sindh province, Pakistan. The Central Indus basin is an
extenstional tectonic regime exhibiting normal faulting. Tectonically the block lies on
Panno Aqil graben and in between two highs i.e. on the eastern flank of Khairpur-
Jacobabad High and west of Mari Kandkot High. Thar slope lies in south and Delhi
Aravalli range is in the east. The primary target of the Maino-02 well being drilled
was A-Sands of Lower Goru Formation belonging to Lower Cretaceous age while
secondary target had been B-Sands of Lower Goru of the same age. For structural
enhancement, four migrated seismic lines were used; P2092-111, P2092-113 and
P2092-115 (dip lines) and P2092-110 (strike line). Time and depth contours of four
horizons, Habib Rahi formation, SuiMain Limestone formation, Ranikot formation
and Lower Guru formation were generated which confirmed the horst and grabben
structures in the subsurface. Mechanical properties calculated through rock physics
also provide support of potential zones (zone 1 and zone 2) of Lower Guru formation.
Potential reservoir zones were marked, average hydrocarbon saturation of zone 1 was
calculated to be 63.5% and that of zone 2 is 68.9% from the log data of Miano–02.
