Organic geochemistry characterisation of crude oils from Mishrif reservoir rocks in the southern Mesopotamian Basin, South Iraq: Implication for source input and paleoenvironmental conditions

Al-Khafaji, Amer Jassin; Hakimi, Mohammed Hail; Najaf, Ahmed A.

doi:10.1016/j.ejpe.2017.02.001

Cited by 25 publications

(7 citation statements)

References 29 publications

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“…Therefore, the obtained value of the ratio C31αβS/(S + R) = 0.27 in the analyzed Wondama coal sample shows the low maturity of the coal. Low maturity of brown coal from Sangatta coal mines, East Kalimantan is also shown by the presence of C31-17α (H), 21β (H) -30-homohopane (22S) and C31-17α (H), 21β (H) -30-homohopane (22R ) [19], and a ratio of 22S / (22S + 22R) to C32 hopana in crude oils samples from Mishrif reservoir rocks in the Southern Mesopotamian, South Iraq [44]. The low maturity of the analyzed coal is also supported by calculating calorific values based on the calorimeter bomb method, which is 7176.49 kJ/kg, and is included in the rank of sub-bituminous coal [10].…”

Section: C31-17α(h)21β(h)-30-homohopanementioning

confidence: 96%

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

et al. 2020

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Organic geochemical characterization of Wondama coal samples from the Lengguru Folding Belt has been carried out through the study of its aliphatic hydrocarbon biomarkers. This study is to determine the origin, depositional environment and maturity of coal which is useful for determining the use of coal as an energy source. Aliphatic hydrocarbon biomarkers were identified by using gas chromatography-mass spectroscopy methods which showed the presence of n-alkane homologs (n-C15 - n-C33), which was dominated by n-C31. This indicates that the organic material originates from Angiosperms of terrestrial higher plants. The ratio of pristane to phytane (Pr/Ph) with value of 3.74 indicates that the Wondama coal is buried in an oxic depositional environment. The Carbon Preference Index (CPI) value of 7.82 and the C31αβS/(S + R) ratio of 0.27 indicate low maturity of Wondama coal and is classified into a sub-bituminous coal ranks.

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Section: C31-17α(h)21β(h)-30-homohopanementioning

confidence: 96%

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

et al. 2020

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“…equal to 22.2 -27. 22 Besides crude oil, hydraulic oil and motor oil were used in the sorbent experiment. 21…”

Section: Sample Collectionmentioning

confidence: 99%

The Role of Polyurethane Foam Modified with Feather as an Oil Sorbent

2021

TJNPR

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“…Ratawi Formation samples had 0.60 to 1.40 wt.% TOC, mature with Ro = 0.50-1.00% and Yamama Formation's samples contain 0.30 to 2.70 wt.% TOC while samples from Sulaiy Formation have the highest TOC wt.% reaching up to 10.00 wt.% (Al-Ameri et al, 2009;Abeed, 2012). Awadh & Hussien, 2015;Eqal, 2015;Idan et al, 2015;Al-Ahmed & Al-Obaidi, 2016;Al-Khafaji et al, 2017;Hasan & Al-Dulaimi, 2017;Deng et al, 2018).…”

Section: Geological Settingmentioning

confidence: 99%

“…: Abeed et al, 2012; Al-Ahmed & Al-Obaidi, 2016; Al-Agaili, 2012; Al-Ameri et al, 2009; Al-Ameri et al, 2011; Al-Ameri & Al-Khafaji, 2014; Al-Ameri & Al-Zaidi, 2014; Al-Ameri et al, 2015; Al-Ibrahim & Al-Ameri, 2015; Al-Khafaji et al, 2017;Al-Khafaji, 2015;Al-Musawi, 2010;Awadh & Hussien, 2015;Deng et al, 2018;Eqal, 2015;Hasan & Al-Dulaimi, 2017;Idan et al, 2015. …”

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confidence: 99%

Crude Oil Classification Based On Age And Provenance From The Southern Iraq: A Review

Abdula¹

2020

BGSM

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A collection of 165 crude oils, 12 oil seeps, and 24 extracts and recovered samples from 25 oil exploratory wells and 6 oil seeps in the Southern Mesopotamian Basin were studied. Biomarker configurations and other organic geochemistry parameters were used to discover the depositional environments and to classify the oil samples as provenance groups. Petroleum liquids were geochemically classified into four groups. The first group of oils, Middle Jurassic Zagros Fold Belt, is located in the Maysan, Basra, and Thi qar provinces of the basin that has pristane/phytane (Pr/Ph) proportions ≤0.97 and contains sufficient gammacerane. Methylphenanthrene index 1 (MPI 1) values show that the first group of oils is mature. Oils from Group 2, Upper Jurassic–Lower Cretaceous Sulaiy/Yamama, by disparity have Pr/Ph proportions between 0.72 and 1.12 and relatively moderate C28/C29 steranes, 0.52-0.88. Ts/Tm ratios indicate thermal maturity for Group 2 oils. Unlike oils from other groups, the oils from Group 3, Cretaceous to Tertiary oils, in Subba Field hold the highest canonical variable (CV) values that range between 0.43 and –2.30. The fourth group, Late Triassic-Middle Jurassic oil seeps, is the oldest among all groups. This group holds an average carbon isotope ratio –28.25‰ and –28.10‰ for saturates and aromatics respectively, which are the lowest values among all oils in the studied region. The Tithonian-Berriasian Sulaiy/Yamama oils further divided into three subgroups. The first subgroup, A, has carbon preference index (CPI) values of ≤1.08 (average 0.86) and C28/C29 sterane of 0.56-1.13 with an average of 0.65. Second subgroup, B, holds CPI ≤1.18 (average 0.99) and C28/C29 sterane 0.55-0.82 with an average of 0.63. The last subgroup, C, has CPI values ≤0.93 (average 0.85) and high C27 and C29 steranes (average 46.5% and 39.61%, respectively). In the same way, the Group 3 can be further subdivided into two subgroups based on values of carbon isotopes for saturates and aromatics. The oils from this group are heterogeneous and can be further divided into Tertiary Subgroup and Cretaceous Subgroup.

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Organic geochemistry characterisation of crude oils from Mishrif reservoir rocks in the southern Mesopotamian Basin, South Iraq: Implication for source input and paleoenvironmental conditions

Cited by 25 publications

References 29 publications

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

Origin and Maturity of Biomarker Aliphatic Hydrocarbon in Wondama Coal Indonesia

The Role of Polyurethane Foam Modified with Feather as an Oil Sorbent

Crude Oil Classification Based On Age And Provenance From The Southern Iraq: A Review

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