DefinePK

Abstract

The composite carbonates-clastic succession of the Mughal Kot Formation exposed in Mughal Kot Section, Sulaiman Range is studied in detail in the context of diagenesis and reservoir quality. Both carbonates and clastic rocks have been altered by diagenetic processes in their respective diagenetic environments. The diagenetic processes, noticed in carbonates of the Mughal Kot Formation, includes micritization, dolomitization, iron cementation, cementation (isopach), mechanical compaction, chemical compaction (stylolitization) and fracturing (but most are filled). Similarly, the sandstone of the Mughal Kot Formation exhibit reservoir heterogeneity based on the diagenetic features and overall rock fabric. The sandstones are modified by mechanical compaction, cementation (quartz overgrowth, calcite, dolomite and iron minerals). Such diagenetic alterations control the reservoir properties and quality. In the light of present study, carbonates as well as clastics of the Mughal Kot Formation are poor quality reservoir rocks.