Abstract:
Fracture characterization in rocks, either carbonate or clastic, has always played
a pivotal role in estimating the reservoir characteristics for both, petroleum and water
prospects. Fractures, present in rocks, increase the potentiality of rocks to store and
reserve water and hydrocarbons and also provide migration routes and barriers. This
research aims to implement the methodology of fracture analysis for fracture
characterization. For this purpose, Margalla Hills area was selected. Different types of
formations containing carbonate and clastic rocks were characterized. The fracture
parameters of different formations were evaluated like orientation, density, porosity and
permeability and also, distribution of joint sets. The results showed that carbonate rocks
have more fractures in an area as compared to clastic rocks, enabling the former rocks
to contain high porosity and permeability. In view of this, Lockhart Limestone acts as
good reservoir as compared to other formations followed by Margalla Hill Limestone
and Samana Suk Formation. On the other hand, clastic rocks such as Murree Formation
acts as poor reservoir as compared to carbonate rocks.
