Sequence Stratigraphy and Source Rock Potential of the Aptian (Bab Member) in East Onshore Abu Dhabi: A Model Approach to Oil Exploration

Abstract

Sequence Stratigraphy and Source Rock Potential of the Aptian (Bab Member) in East Onshore Abu Dhabi: A Model Approach to Oil Exploration I.N. Azzam; I.N. Azzam Abu Dhabi Nat'l. Oil Co. Search for other works by this author on: This Site Google Scholar A.K. Taher A.K. Taher Abu Dhabi Nat'l. Oil Co. Search for other works by this author on: This Site Google Scholar Paper presented at the Middle East Oil Show, Bahrain, March 1995. Paper Number: SPE-29802-MS https://doi.org/10.2118/29802-MS Published: March 11 1995 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Azzam, I.N., and A.K. Taher. "Sequence Stratigraphy and Source Rock Potential of the Aptian (Bab Member) in East Onshore Abu Dhabi: A Model Approach to Oil Exploration." Paper presented at the Middle East Oil Show, Bahrain, March 1995. doi: https://doi.org/10.2118/29802-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Middle East Oil and Gas Show and Conference Search Advanced Search Sequence Stratigraphy and Source Rock Potential of the Aptian (Bab Member) in East Onshore Abu Dhabi: A Model Approach to Oil Exploration.AbstractA new geologic model of the Aptian Bab Member (Shuaiba Fm.) have been built, in East Onshore Abu Dhabi, using sequence stratigraphy and biostratigraphy. The model reveals that the Shuaiba is subdivided into two sequences (Upper and Lower). The first sequence is comprised of transgressive and high stand systems tract that can be distinguished in the Lower Shuaiba of Early Aptian age. The second sequence, the Upper Shuaiba, consists of deeper intrashelf basin sediments comprising a transgressive and highstand systems tract of Late Aptian age.A practical modeling on the Shuaiba Fm. for identifying and calculating Total Organic Carbon (TOC) content and it's thermal maturity have been adopted using well logs. The modeling indicated that the upper part of Lower Shuaiba (basinal facies) is a prolific, 'nature source rock especially in the northern part of the study area. Volumetric calculations for Shuaiba source rock indicated that most of the Upper Thamama oils have been generated and migrated from the mature Shuaiba source.IntroductionEastern Abu Dhabi is located between longitudes 54 00' and 55 30' and latitudes 22 20' and 24 30'. It encompass an area of about 19,000 sq. km. (Fig. 1). Considerable subsidence in East Onshore Abu Dhabi has resulted in accumulation of a thick (over 18,000 ft.) Permian to Recent sedimentary section.In this study. the term "Bab Member" refers to stratigraphic section between the top of Thamama Zone-A and Base of Nahr Umr Shale (Fig. 2).Historically, the first porous carbonate interval encountered below the Nahr Umr Shale in wells drilled on the Shuaiba build-ups, in Abu Dhabi, has been referred to as Shuaiba Formation and that the basinal Bab Member are time-equivalent interval of the build-up strata, overlying Thamama Zone-A.However, sequential analysis of wireline logs and available biostratigraphic ages based on planktonic for aminifera, ammonites, rudists and nanofossils for the Shuaiba build-up/Bab Member revealed that the stratigraphic position and relative age of these formations have been unclear and controversial.Ths paper covers two disciplines.P. 305 Keywords: source rock potential, lower shuaiba, sequence, exploration, abu dhabi, shuaiba sequence, bab member, boundary, sequence stratigraphy, richness Subjects: Reservoir Characterization, Exploration, development, structural geology This content is only available via PDF. 1995. Society of Petroleum Engineers You can access this article if you purchase or spend a download.