Volume 8, Issue 5, October 2019, Page: 268-276
Present-Day Two-Dimension Maturity History Modelling of Source Rocks from the Central Region of the Andaman Sea Back Arc Depression
Jonathan Atuquaye Quaye, School of Energy Resources, China University of Geosciences, Beijing, China
Sihuang Xu, Faculty of Earth Resources, China University of Geosciences, Wuhan, China
Yanick Brice Lemdjou, Department of Earth Science and Resources, China University of Geosciences, Beijing, China
Received: Sep. 1, 2019;       Accepted: Oct. 5, 2019;       Published: Oct. 17, 2019
DOI: 10.11648/j.earth.20190805.12      View  41      Downloads  14
Abstract
Basin modelling is an essential research tool that aids geologists improve the description and analysis of subsurface activity. The central region of the Andaman Sea back arc basin is a potential oil and gas prospect. Herein, two-dimension present-day maturity models are constructed from four seismic sections of the study area using Basin Mod software (Platte River Associates, Inc. of USA). Designated study areas are the South to North Moattama Basin, western Moattama to the Mergui Shelf, Western to Eastern Moattama basin centres through Eastern Moattama basin centre to the Eastern section of Mergui basin and Eastern Andaman Sea Basin to Western Mergui Basin. The two-dimension (2D) maturity models are generated from known data burial and geothermal data. Vitrinite Reflectance (Ro%) which is the main variable in determining source rock (s) maturity showed that the source units were within the oil (0.5% ≤ Ro ≤ 1%) and gas (1.3% ≤ Ro ≤ 4.5%) and had commenced generation of some quantities of hydrocarbons. Data analyzed revealed that most portions of the Oligocene and Lower Miocene shales source units in all study areas buried below 2000 m are matured to generate oil and / or gas. The outcome of modelling also indicated that source units from the Moattama Basin center and the Mergui Basin were mostly matured to produce some form of hydrocarbons, principally gas or dry gas. However, no oil expulsion into limestone reservoirs was observed; only gas or dry gas.
Keywords
Maturity History Model, Andaman Sea, Vitrinite Reflectance, Back Arc Depression, Basin Modelling, Seismic Profile, Oil and Gas Windows
To cite this article
Jonathan Atuquaye Quaye, Sihuang Xu, Yanick Brice Lemdjou, Present-Day Two-Dimension Maturity History Modelling of Source Rocks from the Central Region of the Andaman Sea Back Arc Depression, Earth Sciences. Special Issue: Geoscience and Energy. Vol. 8, No. 5, 2019, pp. 268-276. doi: 10.11648/j.earth.20190805.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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