2D Seismic Interpretation and Petrophysical Analysis of Miano-02 Central Indus Basin, Pakistan (P-1121) (MFN 4895)

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.