Palynofacies and Source Rocks Evaluation for Selected Samples of Subba Oil Field, Southern Iraq

Autor:	Nawfal A. Dahham, Hussein A. Chafeet, Amna M. Handhal
Rok vydání:	2020
Předmět:	Palynology Total organic carbon chemistry.chemical_classification General Computer Science Geochemistry General Chemistry General Biochemistry Genetics and Molecular Biology Palynofacies chemistry.chemical_compound chemistry Source rock Facies Kerogen Organic matter Oil field Geology
Zdroj:	Iraqi Journal of Science. :1063-1079
ISSN:	2312-1637 0067-2904
Popis:	This study includes a palynological and organic geochemical evaluation of Nahr Umr, Zubair, and Yamama Formations in the Subba field, Southern Iraq, represented by three wells (Su-14, Su-9 and Su-8). The determination of quantity organic matter showed that the rocks of Nahr Umr Formation had a total organic carbon of 4.76%, indicating very good production of hydrocarbons where type (II) kerogen was dominant, but the rocks were thermally immature. Zubair Formation had a total organic carbon of 1.91% to 2.26%, indicating good to very good production of hydrocarbons where kerogen of types (I) and (II/III) were dominant, with low thermal maturity. Yamama Formation showed a total organic carbon of 1.68%, revealing good production of hydrocarbons where type (I) kerogen was dominant, with low thermal maturity. Facies analysis of Nahr Umr, Zubair and Yamama Formations demonstrated the presence of two facies, namely the distal dysoxic-Oxic shelf and the distal suboxic-Anoxic basin. It is clear that the environment of rock deposition is a marine environment, which is far from the coast.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a75e430d4bc294363075d372303ad47b https://doi.org/10.24996/ijs.2020.61.5.15 Zobrazit plný text záznamu