Litho-statistical study of both the jurassic and cretaceous type sections in Saudi Arabia

الملخص EN

Litho- statistical study of both the Jurassic and the Cretaceous Formations' type sectio ns suggests optimum litholo gical combina tions of reserv oir and cap rock s for possible oil accumulations in the Arab, Wasia , and Biyadh Formations .

The Hith Formation is by far the best cap rock .

Massive source rocks can exist in formations such as the Dhruma, Tuwaiq Mountain , Han ifa , and Sulaiy , if the y cont ain sufficient amounts of organic matter and are geochernically mature .

Both the statistics of the producing reservoirs and the geochemical an alysis of the source in the region suppo rt the above conclusions .