Find Phone number, Location Address and all other information of GEOPHYSICAL PROSPECTING CO OF SINOPEC HPEB (PAK-BRANCH) Karachi on Branches.pk – Pakistan’s Largest Branches directory. GEOPHYSICAL PROSPECTING CO OF SINOPEC HPEB (PAK-BRANCH) is a Karachi based company offering services / Products in Karachi as well as in other major cities of Pakistan, you can contact them directly on Phone number35878372