Conclusions

Following conclusions were deduced based on the current studies:

• The Upper Eocene (Chorgali Formation) is continuous throughout the area of Chak Naurang / Joya Mair and it contains good reservoirs of hydrocarbons. That is why it was made the target horizon in the interpretation.

• The thrust faults in the area show that it was deformed by compressional tectonic movements thereby causing the salt-decollement. The thrusting resulted in the formation of fault-propagating folds in the form of Chak Naurang and Joya Mair anticlines.

• The fault along the Pre-Cambrian basement has caused movements in the Pre-Cambrian salt.

• The compression caused the salt to squeeze into the anticlines, letting the strata in between to sink, forming a graben structures.

• Structural traps have developed in the Chak Naurang and Joya Mair anticlines possibly due to their truncation against the basement fault.

• The Upper Eocene Chorgali Formation is found almost at a depth of 2000 meters within the anticlines, which is favorable for drilling. Both the anticlines are producing because the compression and the salt movement have caused the reservoirs to rise into shallower depths.

• On the basis of this geological and seismic studies and correlating the results with qualitative and quantitative interpretation of gravity and magnetic data by Basharat et al. (2004), it is suggested that Joya Mair thrust and Mengan thrust deformed the structural trap in Joya Mair area. It also indicates that Joya Mair anticline is not a single structure, rather, it is faulted into blocks. That is why the expected reserves potential of Joya Mair Oilfield are not recovered so far.