Evolution characteristics and application of diamondoids in coal measures
As diamondoids have been used to evaluate petroleum and source rocks widely; their origin, evolution, and distribution in petroleum as well as source rocks have attracted ever more attention. Having finished the pyrolysis simulation experiment of the coal measure mudrocks from Xujiahe Formation, Sic...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2016-02-01
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| Series: | Journal of Natural Gas Geoscience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468256X16300025 |
| _version_ | 1797725866239721472 |
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| author | Chenchen Fang Wei Wu Dan Liu Jinzhong Liu |
| author_facet | Chenchen Fang Wei Wu Dan Liu Jinzhong Liu |
| author_sort | Chenchen Fang |
| collection | DOAJ |
| description | As diamondoids have been used to evaluate petroleum and source rocks widely; their origin, evolution, and distribution in petroleum as well as source rocks have attracted ever more attention. Having finished the pyrolysis simulation experiment of the coal measure mudrocks from Xujiahe Formation, Sichuan Basin, results indicated that with the equivalent vitrinite reflectance (EasyRo) increasing, diamondoids experience generation (1.0% < EasyRo < 1.5%) and destruction (EasyRo > 1.5%). Throughout the simulation experiment, diamondoid parameters MAI, EAI, and TMAI-1 kept good relationships with maturity within the range of EasyRo 1.5%–2.5%, 1.0%–2.5%, and 1.5%–2.5% respectively, with all of the correlation coefficient (R2) being above 0.7844, this indicated that these parameters can be used to evaluate maturity at these ranges. In addition, the yield ratios A/D, MA/MD, DMA/DMD, and As/Ds also kept good relationships with maturity at the range of EasyRo 1.2%–2.5%, with all of the R2 above 0.9236, this indicated that these ratios can be used to evaluate maturity index at this range. |
| first_indexed | 2024-03-12T10:37:23Z |
| format | Article |
| id | doaj.art-37c7a40f750943f7bb7fcabeeee07286 |
| institution | Directory Open Access Journal |
| issn | 2468-256X |
| language | English |
| last_indexed | 2024-03-12T10:37:23Z |
| publishDate | 2016-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Natural Gas Geoscience |
| spelling | doaj.art-37c7a40f750943f7bb7fcabeeee072862023-09-02T08:32:20ZengKeAi Communications Co., Ltd.Journal of Natural Gas Geoscience2468-256X2016-02-0111939910.1016/j.jnggs.2016.02.001Evolution characteristics and application of diamondoids in coal measuresChenchen Fang0Wei Wu1Dan Liu2Jinzhong Liu3PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, ChinaExploration and Development Research Institute of Southwest Oil & Gas Company, PetroChina, Chengdu, Sichuan 610056, ChinaPetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, ChinaState Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaAs diamondoids have been used to evaluate petroleum and source rocks widely; their origin, evolution, and distribution in petroleum as well as source rocks have attracted ever more attention. Having finished the pyrolysis simulation experiment of the coal measure mudrocks from Xujiahe Formation, Sichuan Basin, results indicated that with the equivalent vitrinite reflectance (EasyRo) increasing, diamondoids experience generation (1.0% < EasyRo < 1.5%) and destruction (EasyRo > 1.5%). Throughout the simulation experiment, diamondoid parameters MAI, EAI, and TMAI-1 kept good relationships with maturity within the range of EasyRo 1.5%–2.5%, 1.0%–2.5%, and 1.5%–2.5% respectively, with all of the correlation coefficient (R2) being above 0.7844, this indicated that these parameters can be used to evaluate maturity at these ranges. In addition, the yield ratios A/D, MA/MD, DMA/DMD, and As/Ds also kept good relationships with maturity at the range of EasyRo 1.2%–2.5%, with all of the R2 above 0.9236, this indicated that these ratios can be used to evaluate maturity index at this range.http://www.sciencedirect.com/science/article/pii/S2468256X16300025Coal-measure mudstoneThermal pyrolysisDiamondoidsEvolution characteristics |
| spellingShingle | Chenchen Fang Wei Wu Dan Liu Jinzhong Liu Evolution characteristics and application of diamondoids in coal measures Journal of Natural Gas Geoscience Coal-measure mudstone Thermal pyrolysis Diamondoids Evolution characteristics |
| title | Evolution characteristics and application of diamondoids in coal measures |
| title_full | Evolution characteristics and application of diamondoids in coal measures |
| title_fullStr | Evolution characteristics and application of diamondoids in coal measures |
| title_full_unstemmed | Evolution characteristics and application of diamondoids in coal measures |
| title_short | Evolution characteristics and application of diamondoids in coal measures |
| title_sort | evolution characteristics and application of diamondoids in coal measures |
| topic | Coal-measure mudstone Thermal pyrolysis Diamondoids Evolution characteristics |
| url | http://www.sciencedirect.com/science/article/pii/S2468256X16300025 |
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