A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin

Commercial hydrocarbon discoveries in the Cretaceous of the southern Persian Gulf basin provide direct evidence that there is an effective petroleum system associated with the Cretaceous series. The revised models of thermal maturity in this region are needed to investigate lateral and stratigraphic...

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Main Authors: Majid Alipour, Bahram Alizadeh, Ali Chehrazi
Format: Article
Language:English
Published: Petroleum University of Technology 2017-10-01
Series:Iranian Journal of Oil & Gas Science and Technology
Subjects:
Online Access:http://ijogst.put.ac.ir/article_53898_48d6802cdf817422e623d39662731051.pdf
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author Majid Alipour
Bahram Alizadeh
Ali Chehrazi
author_facet Majid Alipour
Bahram Alizadeh
Ali Chehrazi
author_sort Majid Alipour
collection DOAJ
description Commercial hydrocarbon discoveries in the Cretaceous of the southern Persian Gulf basin provide direct evidence that there is an effective petroleum system associated with the Cretaceous series. The revised models of thermal maturity in this region are needed to investigate lateral and stratigraphic variations of thermal maturity, which have not so far been addressed in detail for this part of the Persian Gulf. Such thermal maturity models are required to delineate the existing play assessment risks and to predict properties in more deeply buried undrilled sections. This study uses two dimensional basin modeling techniques to reconstruct maturity evolution of the Cenomanian Middle Sarvak source rock, presumably the most likely source for these hydrocarbons. The results indicate that an estimated 900 meter difference in the depth of burial between the southeastern high and the adjacent trough tends to be translated into noticeable variations at both temperature (135 °C versus 162 °C) and vitrinite reflectance (0.91% versus 1.35%). Since the organic matter in the mentioned source rock is of reactive type II, these could cause a shift of about 18 million years in the onset of hydrocarbon generation over respective areas.
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spelling doaj.art-3318399b89014d8f92ad4882def4d2732022-12-21T20:29:37ZengPetroleum University of TechnologyIranian Journal of Oil & Gas Science and Technology2345-24122345-24202017-10-016411710.22050/ijogst.2017.5389853898A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf BasinMajid Alipour0Bahram Alizadeh1Ali Chehrazi2Ph.D. Candidate, Department of Geology, Faculty of Earth Sciences, Shahid Chamran University, Ahvaz, IranProfessor, Petroleum Geology and Geochemistry Research Center (PGGRC), Shahid Chamran University, Ahvaz, IranAssisstant Professor, Research Institute of Petroleum Industry (RIPI), Tehran, IranCommercial hydrocarbon discoveries in the Cretaceous of the southern Persian Gulf basin provide direct evidence that there is an effective petroleum system associated with the Cretaceous series. The revised models of thermal maturity in this region are needed to investigate lateral and stratigraphic variations of thermal maturity, which have not so far been addressed in detail for this part of the Persian Gulf. Such thermal maturity models are required to delineate the existing play assessment risks and to predict properties in more deeply buried undrilled sections. This study uses two dimensional basin modeling techniques to reconstruct maturity evolution of the Cenomanian Middle Sarvak source rock, presumably the most likely source for these hydrocarbons. The results indicate that an estimated 900 meter difference in the depth of burial between the southeastern high and the adjacent trough tends to be translated into noticeable variations at both temperature (135 °C versus 162 °C) and vitrinite reflectance (0.91% versus 1.35%). Since the organic matter in the mentioned source rock is of reactive type II, these could cause a shift of about 18 million years in the onset of hydrocarbon generation over respective areas.http://ijogst.put.ac.ir/article_53898_48d6802cdf817422e623d39662731051.pdfthermal maturity modelingeffective cretaceous petroleum systemcenomanian middle sarvak source rocksouthern persian gulf basin
spellingShingle Majid Alipour
Bahram Alizadeh
Ali Chehrazi
A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin
Iranian Journal of Oil & Gas Science and Technology
thermal maturity modeling
effective cretaceous petroleum system
cenomanian middle sarvak source rock
southern persian gulf basin
title A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin
title_full A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin
title_fullStr A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin
title_full_unstemmed A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin
title_short A Thermal Maturity Analysis of the Effective Cretaceous Petroleum System in the Southern Persian Gulf Basin
title_sort thermal maturity analysis of the effective cretaceous petroleum system in the southern persian gulf basin
topic thermal maturity modeling
effective cretaceous petroleum system
cenomanian middle sarvak source rock
southern persian gulf basin
url http://ijogst.put.ac.ir/article_53898_48d6802cdf817422e623d39662731051.pdf
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