The Tihama basin at the west coast of Yemen was studied to gain a thorough understanding of its geology and hydrocarbon potential. Literature, field data, ten deep exploration wells, five shallow stratigraphic tests and a selection of seismic data were studied, resulting in stratigraphic correlation profiles and structural sections. The study comprises a compilation of exploration data gathered by different companies since the early 1950's. A gross structural and sedimentological model for the area was the result of the study. The Miocene to Recent sedimentary suite can be divide into three units: the Pre-Evaporite, the Evaporite and the Post-Evaporite Groups. The area can be divide in six different structural elements according to the location relevant to the spreading axis of the Red Sea and to the central part of the Miocene salt basin. Potential traps abound in the Pre-Evaporite and the Evaporite Group. In the Post-Evaporite Group the hydrocarbon potential is questionable because of lack of seal. Throughout the study area the quality and degree of maturation of the source rocks appear to be highly variable.

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