Hydrocarbon source potential of the Tanezzuft Formation, Murzuq Basin, south-west Libya: An organic geochemical approach

W. Sh El Diasty; S. Y. El Beialy; T. A. Anwari; D. J. Batten

doi:10.1016/j.jafrearsci.2017.03.005

Hydrocarbon source potential of the Tanezzuft Formation, Murzuq Basin, south-west Libya: An organic geochemical approach

W. Sh El Diasty, S. Y. El Beialy, T. A. Anwari, D. J. Batten

Research output: Contribution to journal › Article › peer-review

Abstract

A detailed organic geochemical study of 20 core and cuttings samples collected from the Silurian Tanezzuft Formation, Murzuq Basin, in the south-western part of Libya has demonstrated the advantages of pyrolysis geochemical methods for evaluating the source-rock potential of this geological unit. Rock-Eval pyrolysis results indicate a wide variation in source richness and quality. The basal Hot Shale samples proved to contain abundant immature to early mature kerogen type II/III (oil–gas prone) that had been deposited in a marine environment under terrigenous influence, implying good to excellent source rocks. Strata above the Hot Shale yielded a mixture of terrigenous and marine type III/II kerogen (gas–oil prone) at the same maturity level as the Hot Shale, indicating the presence of only poor to fair source rocks.

Original language	English
Pages (from-to)	102-109
Number of pages	8
Journal	Journal of African Earth Sciences
Volume	130
Early online date	15 Mar 2017
DOIs	https://doi.org/10.1016/j.jafrearsci.2017.03.005
Publication status	Published - 1 Jun 2017

Keywords

Hot Shale
Libya
Murzuq Basin
Rock-Eval pyrolysis
Silurian
Tanezzuft Formation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jafrearsci.2017.03.005

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title = "Hydrocarbon source potential of the Tanezzuft Formation, Murzuq Basin, south-west Libya: An organic geochemical approach",

abstract = "A detailed organic geochemical study of 20 core and cuttings samples collected from the Silurian Tanezzuft Formation, Murzuq Basin, in the south-western part of Libya has demonstrated the advantages of pyrolysis geochemical methods for evaluating the source-rock potential of this geological unit. Rock-Eval pyrolysis results indicate a wide variation in source richness and quality. The basal Hot Shale samples proved to contain abundant immature to early mature kerogen type II/III (oil–gas prone) that had been deposited in a marine environment under terrigenous influence, implying good to excellent source rocks. Strata above the Hot Shale yielded a mixture of terrigenous and marine type III/II kerogen (gas–oil prone) at the same maturity level as the Hot Shale, indicating the presence of only poor to fair source rocks.",

keywords = "Hot Shale, Libya, Murzuq Basin, Rock-Eval pyrolysis, Silurian, Tanezzuft Formation",

author = "{El Diasty}, {W. Sh} and {El Beialy}, {S. Y.} and Anwari, {T. A.} and Batten, {D. J.}",

year = "2017",

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doi = "10.1016/j.jafrearsci.2017.03.005",

language = "English",

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pages = "102--109",

journal = "Journal of African Earth Sciences",

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TY - JOUR

T1 - Hydrocarbon source potential of the Tanezzuft Formation, Murzuq Basin, south-west Libya

T2 - An organic geochemical approach

AU - El Diasty, W. Sh

AU - El Beialy, S. Y.

AU - Anwari, T. A.

AU - Batten, D. J.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - A detailed organic geochemical study of 20 core and cuttings samples collected from the Silurian Tanezzuft Formation, Murzuq Basin, in the south-western part of Libya has demonstrated the advantages of pyrolysis geochemical methods for evaluating the source-rock potential of this geological unit. Rock-Eval pyrolysis results indicate a wide variation in source richness and quality. The basal Hot Shale samples proved to contain abundant immature to early mature kerogen type II/III (oil–gas prone) that had been deposited in a marine environment under terrigenous influence, implying good to excellent source rocks. Strata above the Hot Shale yielded a mixture of terrigenous and marine type III/II kerogen (gas–oil prone) at the same maturity level as the Hot Shale, indicating the presence of only poor to fair source rocks.

AB - A detailed organic geochemical study of 20 core and cuttings samples collected from the Silurian Tanezzuft Formation, Murzuq Basin, in the south-western part of Libya has demonstrated the advantages of pyrolysis geochemical methods for evaluating the source-rock potential of this geological unit. Rock-Eval pyrolysis results indicate a wide variation in source richness and quality. The basal Hot Shale samples proved to contain abundant immature to early mature kerogen type II/III (oil–gas prone) that had been deposited in a marine environment under terrigenous influence, implying good to excellent source rocks. Strata above the Hot Shale yielded a mixture of terrigenous and marine type III/II kerogen (gas–oil prone) at the same maturity level as the Hot Shale, indicating the presence of only poor to fair source rocks.

KW - Hot Shale

KW - Libya

KW - Murzuq Basin

KW - Rock-Eval pyrolysis

KW - Silurian

KW - Tanezzuft Formation

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U2 - 10.1016/j.jafrearsci.2017.03.005

DO - 10.1016/j.jafrearsci.2017.03.005

M3 - Article

AN - SCOPUS:85016071518

SN - 1464-343X

VL - 130

SP - 102

EP - 109

JO - Journal of African Earth Sciences

JF - Journal of African Earth Sciences

ER -

Hydrocarbon source potential of the Tanezzuft Formation, Murzuq Basin, south-west Libya: An organic geochemical approach

Abstract

Keywords

UN SDGs

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