eprintid: 8211
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/82/11
datestamp: 2023-11-09 16:20:05
lastmod: 2023-11-09 16:20:05
status_changed: 2023-11-09 16:12:04
type: conference_item
metadata_visibility: show
creators_name: Mohd Sumery, N.F.
creators_name: Lo, S.Z.
creators_name: Salim, A.M.A.
title: Lacustrine Environment Reservoir Properties on Sandstone Minerals and Hydrocarbon Content: A Case Study on Doba Basin, Southern Chad
ispublished: pub
keywords: Deposition; Earth sciences; Geology; Hydrocarbons; Petroleum geology; Radioactivity; Sand, Depositional environment; Environment characteristic; Hydrocarbon content; Hydrocarbon production; Hydrocarbon reservoir; Lacustrine reservoirs; Possible mechanisms; Reservoir property, Petroleum reservoir engineering
note: cited By 8; Conference of 5th International Conferences on Geological, Geographical, Aerospaces and Earth Sciences 2017, AeroEarth 2017 ; Conference Date: 20 May 2017 Through 21 May 2017; Conference Code:131444
abstract: The contribution of lacustrine environment as the hydrocarbon reservoir has been widely known. However, despite its growing importance, the lacustrine petroleum geology has received far less attention than marine due to its sedimentological complexity. This study therefore aims in developing an understanding of the unique aspects of lacustrine reservoirs which eventually impacts the future exploration decisions. Hydrocarbon production in Doba Basin, particularly the northern boundary, for instance, has not yet succeeded due to the unawareness of its depositional environment. The drilling results show that the problems were due to the: radioactive sand and waxy oil/formation damage, which all are related to the lacustrine depositional environment. Detailed study of geological and petrophysical integration on wireline logs and petrographic thin sections analysis of this environment helps in distinguishing reservoir and non-reservoir areas and determining the possible mechanism causing the failed DST results. The interpretations show that the correlation of all types> of logs and rho matrix analysis are capable in identifying sand and shale bed despite of the radioactive sand present. The failure of DST results were due to the presence of arkose in sand and waxy oil in reservoir bed. This had been confirmed by the petrographic thin section analysis where the arkose has mineral twinning effect indicate feldspar and waxy oil showing bright colour under fluorescent light. Understanding these special lacustrine environment characteristics and features will lead to a better interpretation of hydrocarbon prospectivity for future exploration. © Published under licence by IOP Publishing Ltd.
date: 2017
publisher: Institute of Physics Publishing
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85033229583&doi=10.1088%2f1755-1315%2f88%2f1%2f012005&partnerID=40&md5=0052d7ea6f6133b7cdaf58eb36583243
id_number: 10.1088/1755-1315/88/1/012005
full_text_status: none
publication: IOP Conference Series: Earth and Environmental Science
volume: 88
number: 1
refereed: TRUE
issn: 17551307
citation:   Mohd Sumery, N.F. and Lo, S.Z. and Salim, A.M.A.  (2017) Lacustrine Environment Reservoir Properties on Sandstone Minerals and Hydrocarbon Content: A Case Study on Doba Basin, Southern Chad.  In: UNSPECIFIED.