Ozean Journal of Applied Sciences 4(4), 2011 411 ASPECTS OF STRATIGRAPHY AND FACIES PROFILE OF CLASTIC DEPOSITS IN DOMA FIELD, NIGER DELTA ROTIMI OLUWATOSIN JOHN*, ADEOYE OLUSHOLA TAIYE**, OFOMOLA MERRIOUS OVIRI*** * Petroleum Engineering Department, Covenant University, Ota, Nigeria ** School of Earth and Mineral Science, FUTA, Akure, Nigeria *** Department of Physics, Delta State University, Abraka, Nigeria *E-mail address for correspondence: tossynrotimmy@yahoo.com ______________________________________________________________________________________________ Abstract: The consistencies observed on lithologies encountered during exploration are often brief. They are usually characterized by rapidly changing signatures due to the rapid depositional patterns. Well logs and Seismic data employed in this study assisted in gaining insight into the Stratigraphy of the sand units and facies profile. By mapping lithologies from well logs an attempt was made to identify the depositional sequence. Reflections around important fluid markers were studied in detail on seismic sections. System tracts and the corresponding depositional environments determined from the log motifs were extended for lateral significance on seismic lines. Well to seismic tie was done to validate the recognition of strata patterns on the seismic sections for lateral facie classification. With results presented in time slices, well log panels and seismic cross sections, the spatial distribution of the identified hydrocarbon prone depositional facies was studied. Keywords: facies, depositional patterns, Stratigraphy, reflections, markers ______________________________________________________________________________________________ INTRODUCTION Resolving stratigraphic patterns along the spread of an exploration field entails an integrated approach for a robust result to be achieved. Doma field has experienced successful exploration programs and an extra push is needed to assist engineers in making proper planning for a proposed secondary recovery operation. Water injection has been proposed to sweep hydrocarbon to production holes. This would be a huge success for the proposed mop-up of the remaining oil only if there is a revisit on the Stratigraphy of the oil hosting lithologies in the petroleum rich clastic facies of the Niger Delta. Ozean Journal of Applied Sciences 4(4), 2011 ISSN 1943-2429 © 2009 Ozean Publication