Premium
IN SITU FORMATION OF PETROLEUM IN OOLITES‐ II: A CASE STUDY OF THE ARAB FORMATION OOLITE RESERVOIRS
Author(s) -
Ibe A. C.
Publication year - 1985
Publication title -
journal of petroleum geology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 42
eISSN - 1747-5457
pISSN - 0141-6421
DOI - 10.1111/j.1747-5457.1985.tb00274.x
Subject(s) - petroleum , geology , source rock , paleontology , petroleum engineering , geochemistry , structural basin
In Part I, ( Journ. Petrol. Geol . 7 (3) 267–276) a scheme for the in situ generation and accumulation of hydrocarbons was presented. It was concluded that the indigenous origin of petroleum in oolites, which preculdes a long and wasteful primary migration process, affords another explanation for the exceptionally rich petroleum accumulations which characterise oolite reservoirs. The present paper now tests the validity of that proposal by a selected case study. For an unequivocal discussion of an oolite reservoir productive of petroleum generated in situ , it would be necessary to describe in some detail those formations either underlying, overlying or lateral to the formation of interest which, because of their hydrocarbon content in the general region, might perhaps be supposed to have been the original source of the petroleum now found in the oolites. such an account would be more detailed than space permits. The need arises, therefore, for the selection of an example which allows the least number of alternative possibilities. This was the guiding principle behind the choice of the prolific Arab Formation (Upper Jurassic) of Saudi Arabia as a case study (Fig. 1)