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Respected Syed Tariq,
What do you think about the source origin Potwar Basin petroleum is salt range formation, Precambrian/Cambrian source rocks. ??

Dear Asif,

Interesting question but challenging to reply you with greater confidence due to several unknowns. Petroleum concentration in Potwar basin believed to be originated from early Paleocene Patala Formation.Even though, I am not sure how much this claim of the Patala as the principal source have authenticity as I don't know how much data of the source rock has been made public for the benefit of general geology enthusiasts and students> Atleast, there are some very nice company specific reports available in government database which I have reviewed. Probably HDIP might have large dataset for source rocks of Pakistan and they are regularly releasing information through their organ technical publication.

A flimsy paper, published by USGS Patala-Nammal Composite Total Petroleum System,(2004) mentioned about various horizons  under the sun in that paper for Kohat-Potwar basin-a claim without any evidence

Salt Range Formation (SRF)has been authentically validated as a potential source by analyzing various outcrop samples collected throughout Salt Range starting from Khewra Gorge in eastern Salt Range up to near Kala Bagh area in the western Salt Range. The SRF has oil shale and low grade shale oil with limited to consistent lateral extent. High TOC have been found in outcrop samples and has oil shales in Dulmial-1 well where TOC was up to 47% and most of the samples have proven increasing genetic potential.

Heavy oil from SRF was first time appeared in Karampur-1 well which was drilled by Shell in 1958 in Punjab Platform. The key factor for any organic rich source rock is the temperature conditions rock subjected to be and apparently despite being organically rich rock SRF found to be  thermally not fully mature particularly true in Punjab platform area.

However, if we are able to determine the zone of High TOC oil shale in subsurface oil can be obtained through unconventional production method as we have observed in Canada only if economics allowed and we have resources and know the technology and its application

As far as the Cambrian source potential its not generally considered as source or potential source rock in Pakistan


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Syed Tariq Hasany


MY HUMBLE REQUEST. BEFORE SENDING A QUESTION PLEASE READ THE FOLLOWING CAREFULY. ANSWERING ONLY PUBLIC QUESTIONS. Ask questions of exploration of Petroleum, and specific regions for specific answers about Pakistan, Central Asia, Middle East and Far East. Ask questions of Business side of the petroleum Geology. Love to guide students and also Career related issues PRIVATE QUESTIONS on I am not expert of Hard rocks (Igneous and metamorphic rocks)Volcanic activity and related petrology, mineralogy and its exploration. BE SPECIFOC WHAT YOU WANT TO KNOW AND ASK WITH DIGNITY AND RESPECT. Show me your determination and commitment to learn. PLEASE TRY TO WRITE RIGHT, PROPER AND CORRECT LANGUAGE. DO NOT USE TEXT(SMS)STYLE. Thanks TARIQ


Petroleum Exploration

Petronas Carigali Sdn Bhd

In Pakistani and Asian Petroleum Confertence special Publications

BSc Honours in Geology and Master of Science degree in Petroleum Geology

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Active member AAPG, SPE and PAPG Treasurer PAPG and AAPG Visiting Geoscientist

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