New insight on the depositional environment and facies atlas of Aptian in a super giant carbonate field in the Middle East

Zinhom El Wazir*, Volker C. Vahrenkamp, Klaus Mueller, Noura Al Madani, Fatema Al Shekaili, Abdelmalek Messisha, Aita Bijaripour, Erich Funk

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The 3D architecture of flow units is a key parameter influencing production and recovery from oil reservoirs. Depositional facies and their 3D stacking patterns are commonly fundamental building blocks of flow units. Hence, the recognition of facies, and their placement in conceptual depositional environments is the basic requirement to establish 3 dimensional architectural models of reservoirs. In order to establish facies, facies stacking patterns and the 3D architecture of a super giant field contained in the Aptian in onshore Abu Dhabi, detailed sedimentological and petrographic core description have been carried out using about 13000 ft of core from a total of 49 cored wells. In total 27 facies have been established using fabric and bio content. They have been placed into conceptual depositional models following an evolving platform to basin topography during transgressive, early highstand and late highstand phases of carbonate platform development during the Aptian. This paper presents a comprehensive facies atlas that contains for each facies a detailed description of fabric and bio content, core and thin section pictures, petrophysical summaries and an interpretation of depositional environment. The large areal distribution of core coverage over more than 800 square km paired with the location of the reservoir transgressing platform interior to basinal settings ensures a comprehensive coverage of facies typical for most of the Aptian. The study developed an updated and unified facies scheme embedded in the existing interpretation of the depositional environments and high resolution sequence stratigraphy, and completed the core facies scheme definition which is understood as a fundamental criteria for the population of 3D static and dynamic model, in order to effectively enhance future reservoir development.

Original languageEnglish (US)
Title of host publicationSociety of Petroleum Engineers - 14th Abu Dhabi International Petroleum Exhibition and Conference 2010, ADIPEC 2010
Pages1219-1257
Number of pages39
StatePublished - Dec 1 2010
Externally publishedYes
Event14th Abu Dhabi International Petroleum Exhibition and Conference 2010, ADIPEC 2010 - Abu Dhabi, United Arab Emirates
Duration: Nov 1 2010Nov 4 2010

Publication series

NameSociety of Petroleum Engineers - 14th Abu Dhabi International Petroleum Exhibition and Conference 2010, ADIPEC 2010
Volume2

Other

Other14th Abu Dhabi International Petroleum Exhibition and Conference 2010, ADIPEC 2010
CountryUnited Arab Emirates
CityAbu Dhabi
Period11/1/1011/4/10

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology
  • Fuel Technology

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