The effect of pressure and hydrocarbon expulsion on hydrocarbon generation during pyrolyzing of continental type-III kerogen source rocks
文献类型：期刊论文
| 作者 | Wu, Yuandong1; Zhang, Zhongning2; Sun, Lina3; Li, Yuanju4; Su, Long2; Li, Xingpeng5; Xu, Hao5; Tu, Yang5 |
| 刊名 | JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 170页码:958-966 |
| 关键词 | Pressure Hydrocarbon expulsion Continental type-III kerogen Semi-closed condition |
| ISSN号 | 0920-4105 |
| DOI | 10.1016/j.petrol.2018.06.067 |
| 英文摘要 | In order to define the roles of water and lithostatic pressure in petroleum formation of continental type-III kerogen source rocks, semi-closed hydrous pyrolysis experiments were conducted under with 50-1200 bar water pressure and 125-2000 bar lithostatic pressure at 480 degrees C. Our results will be of great benefit to the exploration of shale gas and deep petroleum in China. Increasing water pressure from 50 to 325 bar did not affect the yields of gaseous hydrocarbons, oil and bitumen, but increasing water pressure leads the more oil and less gaseous hydrocarbons from continental type-III kerogen in the 325-1200 bar water pressure range under semi-closed conditions. The decreasing yields of gaseous hydrocarbons, dryness of gaseous hydrocarbons and primary hydrogen together confirm that increasing water pressure promotes the primary reaction but decreases the cracking rate of oil. The decreasing values of S-2, HI and H/C in the pyrolysed samples confirm that high water pressure can increase the efficiency of hydrocarbon generation from continental type-III kerogen, while the maturation of kerogen correspondingly increases as shown by increasing values of VR and Tmax. In the 125-625 bar lithostatic pressure range, oil cracking and primary reaction of type-III kerogen may have contributed to the decreasing effect of hydrocarbon expulsion. The increasing hydrogen and gaseous hydrocarbon yields also confirm that the cracking of oil is enhanced within this pressure range. The decreasing trends of oil and gaseous hydrocarbon yields indicate that hydrocarbon generation rate was reduced by the high lithostatic pressure in the 625-2000 bar pressure range. The increasing values of S-2, HI and H/C, and decreasing values of VR and Tmax of pyrolysed samples confirm the retardation effect of highlithostatic pressure on the efficiency of hydrocarbon generation and maturation. In addition, the results also indicate that expelling hydrocarbons strongly promotes further hydrocarbon generation and retards the cracking of oil from continental type-III kerogen in source rocks. |
| WOS关键词 | INDIVIDUAL N-ALKANES ; BOHAI BAY BASIN ; HYDROUS PYROLYSIS ; LABORATORY EXPERIMENTS ; PETROLEUM GENERATION ; CONFINED PYROLYSIS ; THERMAL-CRACKING ; GAS GENERATION ; DEEP PETROLEUM ; WATER-PRESSURE |
| 资助项目 | National Science and Technology Major Projects of Ministry of Science and Technology of China[2016ZX05007001-004] ; Key Laboratory Project of Gansu Province[1309RTSA041] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000443829400080 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Science and Technology Major Projects of Ministry of Science and Technology of China ; Key Laboratory Project of Gansu Province ; National Science and Technology Major Projects of Ministry of Science and Technology of China ; Key Laboratory Project of Gansu Province ; National Science and Technology Major Projects of Ministry of Science and Technology of China ; Key Laboratory Project of Gansu Province ; National Science and Technology Major Projects of Ministry of Science and Technology of China ; Key Laboratory Project of Gansu Province |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/88552]  |
| 专题 | 地质与地球物理研究所_兰州油气中心 |
| 通讯作者 | Zhang, Zhongning |
| 作者单位 | 1.Dongguan Univ Technol, Res Ctr Ecoenvironm Engn, Dongguan 523808, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Gansu Prov Key Lab Petr Resources Res, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China 3.Yangtze Univ, Hubei Cooperat Innovat Ctr Unconvent Oil & Gas, Wuhan 430100, Hubei, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.PowerChina Water Environm Governance, Shenzhen 518102, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yuandong,Zhang, Zhongning,Sun, Lina,et al. The effect of pressure and hydrocarbon expulsion on hydrocarbon generation during pyrolyzing of continental type-III kerogen source rocks[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2018,170:958-966. |
| APA | Wu, Yuandong.,Zhang, Zhongning.,Sun, Lina.,Li, Yuanju.,Su, Long.,...&Tu, Yang.(2018).The effect of pressure and hydrocarbon expulsion on hydrocarbon generation during pyrolyzing of continental type-III kerogen source rocks.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,170,958-966. |
| MLA | Wu, Yuandong,et al."The effect of pressure and hydrocarbon expulsion on hydrocarbon generation during pyrolyzing of continental type-III kerogen source rocks".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 170(2018):958-966. |
入库方式： OAI收割
来源：地质与地球物理研究所
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