Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example
Although traditionally it is very difficult for high molecular weight hydrocarbons micro-leaking to the surface, existing research shows that high molecular weight hydrocarbons can seep to modern surface sediments. Based on their different geochemical characteristics, modern sediments of the Yellow...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2015-11-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2015.06.013 |
| _version_ | 1811168457461334016 |
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| author | TU Xian-xin ZHAO Hong-jing LI Shuang-lin SHI Zhong |
| author_facet | TU Xian-xin ZHAO Hong-jing LI Shuang-lin SHI Zhong |
| author_sort | TU Xian-xin |
| collection | DOAJ |
| description | Although traditionally it is very difficult for high molecular weight hydrocarbons micro-leaking to the surface, existing research shows that high molecular weight hydrocarbons can seep to modern surface sediments. Based on their different geochemical characteristics, modern sediments of the Yellow Sea and typical crude oil have been matched with different ratios to study the composition of each product. Results show that with the increasing proportion of oil in the matching test, the chromatographic fingerprint of n-alkanes and part of aromatic hydrocarbons show regular changes. The OEP of the n-alkanes disappear gradually and the abundance of alkyl aromatic hydrocarbons increases. The absolute concentration of the compounds, such as Tricyclic terpane, hopanes, regular steranes, and ratio of dibenzothiophene versus phenanthrene also show regular changes. Tricyclic terpane, ratio of C24 tetracyclic terpane alkyl/C26 tricyclic terpane and ratio of ricyclic terpanes/hopane change smoothly and obviously with a range of 0-3.0, suitable for building a leakage plate. In the case of excluding external pollution, comparison of unknown samples collected in the study area with the matched mixture can determine whether there is an oil and gas reservoir. Plotting the same indices of the unknown samples on the plate would further quantitatively identify the proportion of crude oil in the sediment sample. This method can be used as a supplement to conventional exploration for oil and gas and can give much more information about reservoir evaluation. This method can alsobe extended to the field of environmental pollution monitoring. |
| first_indexed | 2024-04-10T16:27:48Z |
| format | Article |
| id | doaj.art-3817044b75974654892746256d32f872 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:27:48Z |
| publishDate | 2015-11-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-3817044b75974654892746256d32f8722023-02-09T01:42:32ZengScience Press, PR ChinaYankuang ceshi0254-53572015-11-0134668469110.15898/j.cnki.11-2131/td.2015.06.013ykcs-34-6-684Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an ExampleTU Xian-xin0ZHAO Hong-jing1LI Shuang-lin2SHI Zhong3Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan 430100, ChinaKey Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan 430100, ChinaQingdao Institute of Marine Geology, Qingdao 266071, ChinaSchool of Earth Environment and Water Resources, Yangtze University, Wuhan 430100, ChinaAlthough traditionally it is very difficult for high molecular weight hydrocarbons micro-leaking to the surface, existing research shows that high molecular weight hydrocarbons can seep to modern surface sediments. Based on their different geochemical characteristics, modern sediments of the Yellow Sea and typical crude oil have been matched with different ratios to study the composition of each product. Results show that with the increasing proportion of oil in the matching test, the chromatographic fingerprint of n-alkanes and part of aromatic hydrocarbons show regular changes. The OEP of the n-alkanes disappear gradually and the abundance of alkyl aromatic hydrocarbons increases. The absolute concentration of the compounds, such as Tricyclic terpane, hopanes, regular steranes, and ratio of dibenzothiophene versus phenanthrene also show regular changes. Tricyclic terpane, ratio of C24 tetracyclic terpane alkyl/C26 tricyclic terpane and ratio of ricyclic terpanes/hopane change smoothly and obviously with a range of 0-3.0, suitable for building a leakage plate. In the case of excluding external pollution, comparison of unknown samples collected in the study area with the matched mixture can determine whether there is an oil and gas reservoir. Plotting the same indices of the unknown samples on the plate would further quantitatively identify the proportion of crude oil in the sediment sample. This method can be used as a supplement to conventional exploration for oil and gas and can give much more information about reservoir evaluation. This method can alsobe extended to the field of environmental pollution monitoring.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2015.06.013polymer hydrocarbongeochemical exploration for oil and gasoil partition technologychromatographic fingerprintenvironment monitoring |
| spellingShingle | TU Xian-xin ZHAO Hong-jing LI Shuang-lin SHI Zhong Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example Yankuang ceshi polymer hydrocarbon geochemical exploration for oil and gas oil partition technology chromatographic fingerprint environment monitoring |
| title | Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example |
| title_full | Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example |
| title_fullStr | Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example |
| title_full_unstemmed | Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example |
| title_short | Application of High Molecular Weight Hydrocarbon to Geochemical Exploration for Oil and Gas with a Simulated Method Using the Sediment of the Yellow Sea as an Example |
| title_sort | application of high molecular weight hydrocarbon to geochemical exploration for oil and gas with a simulated method using the sediment of the yellow sea as an example |
| topic | polymer hydrocarbon geochemical exploration for oil and gas oil partition technology chromatographic fingerprint environment monitoring |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2015.06.013 |
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