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diamondoids

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Journal Article
Journal: Geology
Published: 01 December 2006
Geology (2006) 34 (12): 1013–1016.
...Zhibin Wei; J. Michael Moldowan; Daniel M. Jarvie; Ronald Hill Abstract Diamondoids were detected in the extracts of a series of coals and rocks varying in maturity, lithology, source input, and depositional environment. At the same maturity level, diamondoids are generally about a magnitude more...
FIGURES | View All (4)
Journal Article
Journal: AAPG Bulletin
Published: 01 February 2018
AAPG Bulletin (2018) 102 (2): 267–291.
...Yun Li; Yongqiang Xiong; Qianyong Liang; Chenchen Fang; Yuan Chen; Xiaotao Wang; Zewen Liao; Ping’an Peng ABSTRACT This study presents new data for the identification of the source and assessment of the thermal maturity of oils based on the diamondoid indices of oils from the Tazhong and Luntai...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 2023
AAPG Bulletin (2023) 107 (10): 1799–1810.
...Robin van der Ploeg; Jos B. M. Pureveen; Sander H. J. M. van den Boorn; Pim F. van Bergen Abstract Diamondoids have been extensively used in petroleum geochemistry for thermal maturity assessment of hydrocarbon fluids and the source rocks from which they are derived. Both diamondoid concentrations...
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<span class="search-highlight">Diamondoids</span> with one to three cages highlighted by selected mass chromatogr...
Published: 01 May 2024
Figure 6. Diamondoids with one to three cages highlighted by selected mass chromatograms from two-dimensional gas chromatography coupled with time-of-flight mass spectrometry analysis of the ZG22 condensate, ZG162-H2 volatile oil, and ZG26 oil sample. (A, D, G) The mass-to-charge ratio ( m/z
Series: AAPG Memoir
Publisher: The American Association of Petroleum Geologists and Brazilpetrostudies
Published: 01 January 2021
DOI: 10.1306/13722316MSB.4.1853
EISBN: 9781629812892
... ABSTRACT Thirteen selected oil samples representing the largest oil fields in the Santos Basin were analyzed by quantitative diamondoid analysis (QDA). The results indicate that mixing of oils of different maturities from different petroleum kitchens is a very important process in the basin...
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Correlation between biomarker (stigmastane) and <span class="search-highlight">diamondoids</span> (3-methyldiaman...
Published: 01 April 2022
Figure 12. Correlation between biomarker (stigmastane) and diamondoids (3-methyldiamantane+4-methyldiamantane) concentration in BZ19-4 and BZ19-6 oils from the Bozhong area. Oil samples suffered from intense secondary cracking were also plotted for comparison. Note that some BZ19-4 oils have high
Journal Article
Journal: AAPG Bulletin
Published: 15 June 2020
AAPG Bulletin (2020) 104 (6): 1231–1259.
... variation depending on the components analyzed and allow no clear correlation to a single source rock but rather imply extensive mixed contributions. Diamondoid hydrocarbon parameters were used for the first time on these Paleogene–Neogene reservoired oils to investigate source, thermal maturity, and mixing...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 2024
AAPG Bulletin (2024) 108 (5): 817–848.
...Figure 6. Diamondoids with one to three cages highlighted by selected mass chromatograms from two-dimensional gas chromatography coupled with time-of-flight mass spectrometry analysis of the ZG22 condensate, ZG162-H2 volatile oil, and ZG26 oil sample. (A, D, G) The mass-to-charge ratio ( m/z...
FIGURES | View All (15)
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Simple mixing line showing the percentage contributions of cracked and uncr...
Published: 15 June 2020
Figure 24. Simple mixing line showing the percentage contributions of cracked and uncracked oils to oil mixtures based on diamondoid 3-methyldiamantane + 4-methyldiamantane concentrations, assuming the cracked oil contained 120 ppm and the uncracked oil 10 ppm of diamondoids.
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Cross plots of isomerization ratios of <span class="search-highlight">diamondoids</span> for Tarim Basin oils. (A...
Published: 01 February 2018
Figure 7. Cross plots of isomerization ratios of diamondoids for Tarim Basin oils. (A) Methyladamantane (MA) index (MAI) (1-MA/[1-MA + 2-MA]) versus ethyladamantane (EA) index (EAI) (1-EA/[1-EA + 2-EA]), (B) MAI versus dimethyladamantane (DMA) index 1 (DMAI-1) (1,3-DMA/[1,2-DMA + 1,3-DMA]), (C
Series: AAPG Memoir
Publisher: The American Association of Petroleum Geologists and Brazilpetrostudies
Published: 01 January 2021
DOI: 10.1306/13722315MSB.3.1853
EISBN: 9781629812892
... ABSTRACT Advanced geochemical technologies (AGT) were applied to 12 oils from pre-salt formations (pre-salt oils) from the Santos Basin and compared to four post-salt reservoired oils. Three primary methods were used to categorize the oils: (1) diamondoid methods, that is, quantitative...
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Compound-specific isotope analysis of <span class="search-highlight">diamondoids</span> for 13 oil and condensate...
Published: 01 March 2016
Figure 8. Compound-specific isotope analysis of diamondoids for 13 oil and condensate samples from the West Siberian basin. PDB = Peedee belemnite.
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Compound-specific isotope analysis of <span class="search-highlight">diamondoids</span> for selected oil samples ...
Published: 01 June 2014
Figure 4 Compound-specific isotope analysis of diamondoids for selected oil samples from the North Slope of Alaska (see Table  3 ).
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Comparison of compound-specific isotope analysis of <span class="search-highlight">diamondoids</span> in selected...
Published: 01 June 2012
Figure 6 Comparison of compound-specific isotope analysis of diamondoids in selected oils from each identified oil family in the Barents Sea and northern Timan-Pechora Basin: (1) 1-methyladamantane; (2) 1,4-dimethyladamantane (cis); (3) 1,4-dimethyladamantane (trans); (4) 1,3-dimethyladamantane
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(a) Structures of common <span class="search-highlight">diamondoids</span> found in oil and (b) a gas chromatogra...
Published: 01 October 2009
Figure 10 (a) Structures of common diamondoids found in oil and (b) a gas chromatographic trace of condensate from the 114-2 well at Mobile Bay, showing that more than 90% of the compounds are composed of diamondoids. MCH = methycyclohexane; Tol = Toluene; C2Bz = dimethylbenzene; C3Bz
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TABLE 1. CONCENTRATIONS OF <span class="search-highlight">DIAMONDOIDS</span> IN COAL AND ROCK EXTRACTS
Published: 01 December 2006
TABLE 1. CONCENTRATIONS OF DIAMONDOIDS IN COAL AND ROCK EXTRACTS
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Figure 1. Mass chromatogram (m&#x2F;z 187) of <span class="search-highlight">diamondoids</span> show ing distribution ...
Published: 01 December 2006
Figure 1. Mass chromatogram (m/z 187) of diamondoids show ing distribution of methyldiamantanes and ethyldiamantanes. I.S.-1—internal standard D 3 -1-methyldiamantane; I.S.-2—D 5 -2-ethyldiamantane.
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Figure 2. Concentrations of <span class="search-highlight">diamondoids</span> (3-+4-methyldiamantanes) in coal an...
Published: 01 December 2006
Figure 2. Concentrations of diamondoids (3-+4-methyldiamantanes) in coal and rock extracts in response to thermal maturity.
Series: AAPG Memoir
Published: 01 January 2019
DOI: 10.1306/13632152M1163790
EISBN: 9781629812854
... shelf. Samples were analyzed using gas chromatography and gas chromatography-mass spectrometry (GC-MS) techniques for quantitative analysis of diamondoids and saturate and aromatic biomarkers. Results indicate Mississippian hydrocarbon source rocks have generation potential and reached the early oil...
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Correlation between biomarker (stigmastane) and <span class="search-highlight">diamondoid</span> (methyldiamantan...
Published: 01 March 2016
Figure 12. Correlation between biomarker (stigmastane) and diamondoid (methyldiamantanes) concentration in 37 oil and condensate samples from the West Siberian basin with different thermal maturities. The diamondoids increase in concentration as biomarkers decrease. Circle, triangle, rhombus