Journal of Petroleum Geology, Vol.7, No.3, pp.267-276, 1984

©Copyright 2000 Scientific Press, Ltd.

IN SITU FORMATION OF PETROLEUM IN OOLITES, PART I:
SCHEME OF HYDROCARBON GENERATION AND ACCUMULATION

A. C. Ibe*

*Marine Geology/Geophysics Dept., Nigerian Institute for Oceanography & Marine Research, PMB. 12729, Victoria Island, Lagos, Nigeria.

*Previous address: Dept. of Geology, Imperial College, London SW7.

Abstract

Published data from an organic geochemical study of Recent oolites from the Bahamas and the Persian Gulf suggest that petroleum-bearing oolites may be the source, as well as the reservoir, of the hydrocarbons they contain. This paper advances a scheme for the generation and accumulation of hydrocarbons in oolite reservoirs. It is proposed that, with the exception of leached oolites with oomoldic porosity, petroleum-bearing oolites could be viewed as integrated source-reservoir rocks.