Basin modelling and bulk kinetics of heterogeneous organic-rich Nyalau Formation sediments of the Sarawak Basin, Malaysia

Makeen, Yousif M.; Hakimi, Mohammed Hail; Abdullah, Wan Hasiah; Mustapha, Khairul Azlan; Hassan, Meor Hakif Amir; Shushan, Ismail Elforjani; Garba, Terfa Elijah; Abujaish, Yaman Ahmad; Lashin, Aref

doi:10.1016/j.petrol.2020.107595

Cited by 10 publications

(1 citation statement)

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“…The location was set to the north of western Asia with a latitude of 35 N (Figure 4d). Heat flow is an essential parameter in basin modelling that can estimate the thermal evolution history of sedimentary basins (Al-Khafaji et al, 2021;Johnsson et al, 1993;Lachenbruch, 1970;Makeen et al, 2020). At present, several methods can effectively determine the basin heat flow such as the EASY %Ro model and the known plate tectonic framework (Allen & Allen, 1990;Barker & Pawlewicz, 1986).…”

Section: Modelling Procedures and Parametersmentioning

confidence: 99%

Basin modelling and source rock characteristics of the Late Palaeoproterozoic Cuizhuang Formation in the Yuncheng sub‐basin, North China: Implications for hydrocarbon generation and expulsion history

Khaled

et al. 2022

Geological Journal

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The present investigation is the first to provide information on the formation, process and influence factors for hydrocarbon generation and expulsion potential of the Cuizhuang Formation source rock in the Yuncheng sub‐basin to decipher the reason why no commercial petroleum resources have been found so far. In this study, data from the Jitan‐1 well in the Yuncheng sub‐basin were applied for the Cuizhuang Formation source rock basin modelling and organic geochemical analyses to reconstruct the burial and thermal evolution history and reveal the timing and process of hydrocarbon generation and expulsion. The modelling results indicate that the peak palaeotemperature of the Cuizhuang Formation source rock reached ~205°C in the Middle Carboniferous (~327 Ma) at a maximum burial depth of ~4000 m, when rapid burial subsidence and thermal events played a significant role in increasing thermal maturity. The Cuizhuang Formation generated and expelled small amounts of hydrocarbons from the Early Ordovician until the Middle Carboniferous, starting with the primary kerogen cracking and conversion to oil from the Early to Middle Ordovician (~476–461 Ma), corresponding to the thermal maturity values of 0.55–0.70 %VRo and transformation ratio (TR) <10%. The expulsion of most generated oil (0.70–1.30 %VRo, TR of 10%–90%) started from the Middle Ordovician to the Early Carboniferous (~461–351 Ma), before reaching the secondary cracking of the retained oil into gas (>1.30 %VRo and TR of 90%–100%) from the Early to Middle Carboniferous (~351–327 Ma). Destruction of the initial formation of hydrocarbon reservoirs in the Yuncheng sub‐basin was primarily controlled by the Middle Carboniferous tectonic event with its major uplift‐erosion, resulting in the absence of potential hydrocarbon reservoirs in recent exploration activities in some parts of the Yuncheng sub‐basin.

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