Study of hydrocarbon generation and 1D-2D modeling of hydrocarbon migration at the Karanj and Parsi oilfields, Southern Dezful Embayment, SW Iran

Vatandoust, Masoumeh; Faghih, Ali; Asadi, Sina; Azimzadeh, Amir Morteza; Heidarifard, Mohammad Hossein

doi:10.1016/j.marpetgeo.2019.104095

Cited by 16 publications

(3 citation statements)

References 52 publications

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“…Biostratigraphic framework of the Asmari Formation is first reported by Wynd (1965) using larger benthic foraminifera as index markers and developed by Adams and Bourgeois (1967) Vatandoust et al (2020). In this study, 14 species that belong to 8 genera of benthic foraminiferal in the Oligocene to Miocene strata are identified.…”

Section: Biostratigraphymentioning

confidence: 86%

Facies analysis and depositional environment of the Oligocene–Miocene Asmari Formation, in Interior Fars (Zagros Basin, Iran)

Karami

Ahmadi

Sarooe

et al. 2020

Carbonates Evaporites

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The present study deals with depositional environment and microfacies analysis of the Asmari Formation in the Nasr-Abad section of Zagros basin in SW of Iran. The thickness of 240 m with Nasr-Abad stratigraphic section to define microfauna is taken from Asmari Formation. Asmari Formation is located in SE of Shiraz. According to the identified index microfossils, following three Oligocene assemblages are determined: 1: Nummulites fichteli-Nummulites vascus, 2: Archaias asmaricuas-Archiaias hensoni, and 3: Peneroplis evolutus-Austroterillina howchini. According to the field observation, thin section studies and the results of petrographic analyses, four microfacies contain open marine (MF1-3), shoal (MF-4), lagoon (MF5-7) and tidal flat (MF8-9) depositional environments are identified. Based on the paleoenvironmental interpretations, the lack of barrier reefs as well as of gradual facies change, a homoclinal ramp mainly represented by its inner and middle sectors is proposed and reconstructed for depositional environment of the Asmari Formation in the studied section.

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Section: Biostratigraphymentioning

confidence: 86%

Facies analysis and depositional environment of the Oligocene–Miocene Asmari Formation, in Interior Fars (Zagros Basin, Iran)

Karami

Ahmadi

Sarooe

et al. 2020

Carbonates Evaporites

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show abstract

“…For research on the hydrocarbon generation and expulsion histories of source rocks, traditional research methods have mainly focused on the qualitative research in geology and geochemistry, − but in recent years, with the development of computer technology, more and more attention has been paid to quantitative and dynamic research methods. − At present, basin modeling is an important technology to quantitatively study the hydrocarbon generation and expulsion histories of source rocks. This technology can conduct numerical simulations and quantitative analyses on the formation and evolution of basins and the generation and expulsion processes of oil and gas and provide important parameters for the dynamics of oil and gas accumulation. , Among them, the BasinMod software provided by Platte River Associates Inc. is one of the more advanced basin modeling software programs. The software can easily realize the single well, profile, and stratum simulations of various basins.…”

Section: Introductionmentioning

confidence: 99%

“…This technology can conduct numerical simulations and quantitative analyses on the formation and evolution of basins and the generation and expulsion processes of oil and gas and provide important parameters for the dynamics of oil and gas accumulation. 17 , 18 Among them, the BasinMod software provided by Platte River Associates Inc. is one of the more advanced basin modeling software programs. The software can easily realize the single well, profile, and stratum simulations of various basins.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon Generation and Expulsion Histories of the Upper Permian Longtan Formation in the Eastern Sichuan Basin, Southwest China

et al. 2023

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The Upper Permian Longtan Formation is the main source rock of the Lower Triassic Jialingjiang Formation in the Eastern Sichuan Basin, Southwest China. However, studies of its maturity evolution and oil generation and expulsion histories are lacking, which are not conducive to the accumulation dynamics of the Jialingjiang Formation in the Eastern Sichuan Basin. Based on the study of tectono-thermal history and geochemical parameter data of the source rock, this paper uses basin modeling technology to simulate the maturity evolution and hydrocarbon generation and expulsion histories of the Upper Permian Longtan Formation in the Eastern Sichuan Basin. The results show that the Longtan Formation source rock in the Eastern Sichuan Basin entered the oil generation threshold at the middle stage of the Early Jurassic and reached the high-maturity stage in the north and central regions at the late stage of the Early Jurassic, and the maturity did not increase after the late stage of the Middle Jurassic. The source rock had the characteristic of “one-stage oil generation and one-stage oil expulsion”; the corresponding period of high oil expulsion was 182–174 Ma (the late stage of the Early Jurassic), which was later than the formation time of the trap of the Jialingjiang Formation, possibly providing oil sources for the paleo-oil reservoirs of the Jialingjiang Formation. The results are of great significance to the gas accumulation process and exploration decision-making in the Eastern Sichuan Basin.

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Effect of thermal maturation and organic matter content on oil shale fracturing

Saberi,

Hosseini-Barzi

2024

Int J Coal Sci Technol

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The Pabdeh Formation represents organic matter enrichment in some oil fields, which can be considered a source rock. This study is based on the Rock–Eval, Iatroscan, and electron microscopy imaging results before and after heating the samples. We discovered this immature shale that undergoes burial and diagenesis, in which organic matter is converted into hydrocarbons. Primary migration is the process that transports hydrocarbons in the source rock. We investigated this phenomenon by developing a model that simulates hydrocarbon generation and fluid pressure during kerogen-to-hydrocarbon conversion. Microfractures initially formed at the tip/edge of kerogen and were filled with hydrocarbons, but as catagenesis progressed, the pressure caused by the volume increase of kerogen decreased due to hydrocarbon release. The transformation of solid kerogen into low-density bitumen/oil increased the pressure, leading to the development of damage zones in the source rock. The Pabdeh Formation’s small porethroats hindered effective expulsion, causing an increase in pore fluid pressure inside the initial microfractures. The stress accumulated due to hydrocarbon production, reaching the rock’s fracture strength, further contributed to damage zone development. During the expansion process, microfractures preferentially grew in low-strength pathways such as lithology changes, laminae boundaries, and pre-existing microfractures. When the porous pressure created by each kerogen overlapped, individual microfractures interconnected, forming a network of microfractures within the source rock. This research sheds light on the complex interplay between temperature, hydrocarbon generation, and the development of expulsion fractures in the Pabdeh Formation, providing valuable insights for understanding and optimizing hydrocarbon extraction in similar geological settings.

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Study of hydrocarbon generation and 1D-2D modeling of hydrocarbon migration at the Karanj and Parsi oilfields, Southern Dezful Embayment, SW Iran

Cited by 16 publications

References 52 publications

Facies analysis and depositional environment of the Oligocene–Miocene Asmari Formation, in Interior Fars (Zagros Basin, Iran)

Facies analysis and depositional environment of the Oligocene–Miocene Asmari Formation, in Interior Fars (Zagros Basin, Iran)

Hydrocarbon Generation and Expulsion Histories of the Upper Permian Longtan Formation in the Eastern Sichuan Basin, Southwest China

Effect of thermal maturation and organic matter content on oil shale fracturing

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