| 南黄海盆地碳酸盐岩生烃动力学参数特征 |
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| 引用本文： | 陈春峰.南黄海盆地碳酸盐岩生烃动力学参数特征[J].地球科学,2019,44(3):872-879. |
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| 作者姓名： | 陈春峰 |
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| 作者单位： | 中海石油(中国)有限公司上海分公司, 上海 200335 |
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| 基金项目： | 中海石油（中国）有限公司项目YXKY-2018-SH-01 |
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| 摘 要： | 南黄海盆地碳酸盐岩生烃动力学参数的研究对于估算该盆地油气资源潜力极为重要.利用黄金管-高压釜封闭体系的实验设备，对南黄海盆地栖霞组和青龙组2个碳酸盐岩样品进行了热模拟实验及生烃动力学分析.结果表明，栖霞组灰岩热解气体最高产率为102 mL/g TOC，青龙组灰岩为78 mL/g TOC；栖霞组灰岩生烃活化能主峰为52 kcal/mol，青龙组灰岩生烃活化能主峰为60 kcal/mol.栖霞组灰岩活化能主峰偏低可能是受样品中残留烃类影响，热成熟度参数Ro与气体产率的关系不受地质升温速率的影响，可以利用实验结果进行碳酸盐岩生烃量模拟.
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| 关 键 词： | 南黄海盆地 碳酸盐岩 生烃动力学 烃源岩 热模拟 石油地质 |
| 收稿时间： | 2018-10-22 |
Kinetics of Hydrocarbon Generation of Carbonate Rocks in South Yellow Sea Basin |
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| Abstract: | The kinetics data of hydrocarbon generation in South Yellow Sea Basin is very important for its hydrocarbon potential evaluation.Pyrolysis experiments of Qixia Formation and Qinglong Formation carbonate samples in South Yellow Sea basin were carried out by using gold tube-autoclave instruments in finite space and then the kinetics data of hydrocarbon generation was analyzed.The results show that gas generation rate of Qixia carbonate is 102 mL/g TOC, and that of Qinglong Formation is 78 mL/g TOC.The mean value of activation energy of Qixia carbonate is 52 kcal/mol, and that of Qinglong carbonate is 60 kcal/mol.The low value of activation energy of Qixia carbonate is possibly caused by the residual hydrocarbon in the sample.The relationship between the maturity parameter Ro and the gas generation rate is not affected by the rate of geo-heating rate, so the parameters can be used to simulate the carbonate hydrocarbon generation in South Yellow Sea Basin. |
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