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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...
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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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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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Cross plots of isomerization ratios of <b>diamondoids</b> 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
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Compound-specific isotope analysis of <b>diamondoids</b> 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 <b>diamondoids</b> 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 <b>diamondoids</b> 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 <b>diamondoids</b> 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 <b>DIAMONDOIDS</b> IN COAL AND ROCK EXTRACTS
in > Geology
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 <b>diamondoids</b> show ing distribution ...
in > Geology
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 <b>diamondoids</b> (3-+4-methyldiamantanes) in coal an...
in > Geology
Published: 01 December 2006
Figure 2. Concentrations of diamondoids (3-+4-methyldiamantanes) in coal and rock extracts in response to thermal maturity.
Journal Article
Journal: AAPG Bulletin
Published: 01 June 2014
AAPG Bulletin (2014) 98 (6): 1235–1267.
...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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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: 15 December 2019
AAPG Bulletin (2019) 103 (12): 3003–3034.
.... In addition, tribe 3 appears to result from end-member mixing between tribes 2 and 4. Finally, the southernmost tribe 6 is the only oil with terrigenous character. Diamondoid analysis shows the presence of significant secondary cracking in the tribe 6 oil with low levels of cracking present in oil samples...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 2016
AAPG Bulletin (2016) 100 (3): 319–343.
...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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Journal Article
Journal: AAPG Bulletin
Published: 01 June 2012
AAPG Bulletin (2012) 96 (6): 1121–1146.
...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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<b>Diamondoid</b> organic facies parameter plot of the Niger Delta oil samples ind...
Published: 15 June 2020
Figure 21. Diamondoid organic facies parameter plot of the Niger Delta oil samples indicating that the oil was from a type II marine source facies similar to that of the North Sea oil (after Schulz et al., 2001 ). DMDI (%) = 100 × 3,4-dimethyldiamantane/(3,4- + 4,9-) dimethyldiamantane; EAI
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<b>Diamondoid</b> maturity parameters plot showing very high maturity in the Niger...
Published: 15 June 2020
Figure 22. Diamondoid maturity parameters plot showing very high maturity in the Niger Delta oils (equivalent vitrinite reflectance [ R oe ] of 1.1%–1.6%). Note the lower maturity of the North Sea oil when compared to the Niger Delta oils (modified after Chen et al., 1996 ). MAI (%) = 100 × 1
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Regional <b>diamondoid</b> (3-methyldiamantane + 4-methyldiamantane [3 + 4 MD]) co...
Published: 15 June 2020
Figure 26. Regional diamondoid (3-methyldiamantane + 4-methyldiamantane [3 + 4 MD]) concentration-based cracking map showing high thermal cracking to the west and relatively low thermal cracking to the eastern part of Niger Delta. The inset is the sediment thickness map of the delta after Haack
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Correlation between biomarker (stigmastane) and <b>diamondoid</b> (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