Petroleum system analysis of the northwestern part of the Persian Gulf, Iranian sector

Baniasad, Alireza; Rabbani, Ahmad Reza; Moallemi, Seyed Ali; Soleimany, Bahman; Rashidi, Mehrab

doi:10.1016/j.orggeochem.2017.03.005

Cited by 20 publications

(14 citation statements)

References 53 publications

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“…These characteristics confirm that the oils are derived from lower Neocomian (Berriasian) carbonates and shaly/marly Albian source rocks (Fig. 4;Bordenave, 2014;Rabbani et al, 2014;Baniasad et al, 2017). Neocomian oils have accumulated in Lower Cretaceous reservoirs (Valangian, Aptian and Albian) around the margin of the Surmeh-Hith platform (e.g.…”

Section: Petroleum Systemssupporting

confidence: 69%

“…3). Of these, the Binak Trough is the more important (Baniasad et al, 2016(Baniasad et al, , 2017. The Northern Depression is interpreted as a continuation of the kitchen area in southern Iraq identified by Abeed et al (2013).…”

Section: Hydrocarbon Generation and Migrationmentioning

confidence: 96%

“…The petroleum system has recently been investigated in the NW Persian Gulf and adjacent onshore Iran as well as Iraq and Kuwait (e.g. Abdullah et al, 1997;Pitman et al, 2004;Rudkiewicz et al, 2007;Abeed et al, 2011Abeed et al, , 2012Opera et al, 2013;Mashhadi et al, 2015a;Baniasad et al, 2016Baniasad et al, , 2017Karimi et al, 2016b). In addition, a seriers of 1D and 2D basin modelling studies (Bashari, 2008;Jahantigh Pak et al, 2014;Mashhadi and Rabbani, 2015a, b;Baniasad et al, 2016) have attempted to reconstruct the burial and thermal history of Cretaceous source rocks in the NW Persian Gulf.…”

Section: Introductionmentioning

confidence: 99%

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Burial, Temperature and Maturation History of Cretaceous Source Rocks in the Nw Persian Gulf, Offshore Sw Iran: 3d Basin Modelling

Baniasad

Sachse

Littke

et al. 2019

Journal of Petroleum Geology

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This study presents a 3D numerical model of a study area in the NW part of the Persian Gulf, offshore SW Iran. The purpose is to investigate the burial and thermal history of the region from the Cretaceous to the present day, and to investigate the location of hydrocarbon generating kitchens and the relative timing of hydrocarbon generation/migration versus trap formation. The study area covers about 20,000 km2 and incorporates part of the intra‐shelf Garau‐Gotnia Basin and the adjacent Surmeh‐Hith carbonate platform. A conceptual model was developed based on the interpretation of 2700 km of 2D seismic lines, and depth and thickness maps were created tied to data from 20 wells. The thermal model was calibrated using bottom‐hole temperature and vitrinite reflectance data from ten wells, taking into account the main phases of erosion/non‐deposition and the variable temporal and spatial heat flow histories. Estimates of eroded thicknesses and the determination of heat‐flow values were performed by burial and thermal history reconstruction at various well and pseudo‐well locations. Burial, temperature and maturation histories are presented for four of these locations. Detailed modelling results for Neocomian and Albian source rock successions are provided for six locations in the intra‐shelf basin and the adjacent carbonate platform. Changes in sediment supply and depocentre migration through time were analyzed based on isopach maps representing four stratigraphic intervals between the Tithonian and the Recent. Backstripping at various locations indicates variable tectonic subsidence and emergence at different time periods. The modelling results suggest that the convergence between the Eurasian and Arabian Plates which resulted in the Zagros orogeny has significantly influenced the burial and thermal evolution of the region. Burial depths are greatest in the study area in the Binak Trough and Northern Depression. These depocentres host the main kitchen areas for hydrocarbon generation, and the organic‐rich Neocomian and Albian source rock successions have been buried sufficiently deeply to be thermally mature. Early oil window maturities for these successions were reached between the Late Cretaceous (90 Ma) and the early Miocene (18 Ma) at different locations, and hydrocarbon generation may continue at the present‐day.

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Section: Petroleum Systemssupporting

confidence: 69%

Section: Hydrocarbon Generation and Migrationmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Burial, Temperature and Maturation History of Cretaceous Source Rocks in the Nw Persian Gulf, Offshore Sw Iran: 3d Basin Modelling

Baniasad

Sachse

Littke

et al. 2019

Journal of Petroleum Geology

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“…The Persian Gulf basin is renown for holding huge volumes of oil and gas in the Paleozoic through Tertiary sediments and has been studied extensively in recent years Alipour et al 2017;Alizadeh et al 2017;Baniasad et al 2017;Hosseiny et al 2016Hosseiny et al , 2017Rabbani et al 2014;Saberi and Rabbani 2015). Extremely rich source rocks occur within the stratigraphic framework that upon maturation give rise to highly prolific hydrocarbon systems (Fig.…”

Section: Geological Backgroundmentioning

confidence: 99%

Combining biodegradation in 2D petroleum system models: application to the Cretaceous petroleum system of the southern Persian Gulf basin

Alipour

Alizadeh

Chehrazi

et al. 2019

J Petrol Explor Prod Technol

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Biodegradation modeling is combined with petroleum system modeling along a regional 2D transect from the southern Persian Gulf basin. An advanced basement model was considered in the model that allowed a constant temperature to enter the entire sedimentary column. Modeling results were calibrated against existing temperature and vitrinite reflectance data from nearby wells. Temperature, burial, and charge histories are carefully monitored within the studied section through geological time. Based on our modeling results, biodegradation has been effective along the migration pathway and within the eventual accumulation sites to varying extents. These findings can have practical implications for pre-drill oil quality predictions and accurate geochemical evaluations of oils and reduce offshore oil and gas exploration risks.

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“…1). The Persian Gulf and its coastal parts contain the major quantities of crude oil and natural gas, approximately 715 billion barrels of crude oil (2/3 of the world's proven oil reserves) and 2462 tcf of gas (1/3 of the total verified world gas reserves) (Rabbani 2014; Baniasad et al 2017). In this area, the presence of many significant regional caprocks, considerable source rock beds, great carbonate reservoirs, huge anticlinal traps and continuous sedimentation are the main factors turning this gulf into an excellent region for hydrocarbon accumulations (Rabbani et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Geochemical study of the early cretaceous Fahliyan oil reservoir in the northwest Persian Gulf

Manshad

Pashaki

Ali

et al. 2021

J Petrol Explor Prod Technol

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Three crude oil samples from the Fahliyan Formation in ‘KG’ and ‘F’ fields in the northwest Persian Gulf, namely KG-031, F9A-3H and F15-3H for the geochemical study. In this study, the physicochemical properties, gas chromatography (GC, GC Mass) and (Detailed Hydrocarbon Analysis) DHA analyses for the collected Fahliyan oils were carried out. The API, Trace Element (Ni, V) and S% parameters indicated that the Fahliyan oil was generated from a source rock which deposited in reducing environment condition with a carbonate-shale compound lithology. Moreover, low pour point, higher S% and low viscosity parameters of “KG” sample confirmed the existence of medium oil characteristics in this field. In addition, the geochemical outcomes of GC, GC–MS and DHA analyses indicated that the ‘KG’ oils are more aromatic compared with ‘F’ oil; while biomarkers revealed that Fahliyan reservoir oil is highly mature and was formed from a carbonate source rock containing types II, III kerogen. Thus, sterane/hopane biomarkers (C24/C23 and C22/C21 ratios) revealed that Fahliyan oil originated from carbonate source rocks deposited in an anoxic to dysoxic environment, which is consistent with the above analyses. It was identified that the source rock age is early Cretaceous to late Jurassic. It can be reported that the Fahliyan oils from both fields were generated in the same source rock and have almost the same physical properties, and will have the same production strategy.

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Petroleum system analysis of the northwestern part of the Persian Gulf, Iranian sector

Cited by 20 publications

References 53 publications

Burial, Temperature and Maturation History of Cretaceous Source Rocks in the Nw Persian Gulf, Offshore Sw Iran: 3d Basin Modelling

Burial, Temperature and Maturation History of Cretaceous Source Rocks in the Nw Persian Gulf, Offshore Sw Iran: 3d Basin Modelling

Combining biodegradation in 2D petroleum system models: application to the Cretaceous petroleum system of the southern Persian Gulf basin

Geochemical study of the early cretaceous Fahliyan oil reservoir in the northwest Persian Gulf

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