| 陆相砂泥岩层系中油气初次运移的定量化研究 |
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| 引用本文： | 金强,熊继辉.陆相砂泥岩层系中油气初次运移的定量化研究[J].中国石油大学学报(自然科学版),1991(6). |
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| 作者姓名： | 金强 熊继辉 |
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| 作者单位： | 石油大学勘探系
(金强)，石油大学勘探系(熊继辉) |
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| 摘 要： | 分析了东濮凹陷东南部的油气地球化学特征,以濮深10井为例,计算了砂泥岩剖面的孔隙度和流体压力,以及不同性质生油岩在演化阶段的油气生成量。用生油岩孔隙中油气饱和度控制油气排出量的方法,可得到油气初次运移量和运移时期。研究表明,有机质丰度高、类型好的生油岩,在进入生油门限时期不久就有油气排出;而有机质丰度低的生油岩几乎无液态油排出,只会在高、过成熟条件下排出天然气。
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| 关 键 词： | 有机质丰度 生油气量 初次运移 定量分析 (东濮凹陷) |
QUANTITATIVE ESTIMATION OF PRIMARY MIGRATION OF HYDROCARBON IN SEQUENCE OF SAND/MUD STONE SOURCE ROCKS |
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| Jin Qiang Xiong Jihui.QUANTITATIVE ESTIMATION OF PRIMARY MIGRATION OF HYDROCARBON IN SEQUENCE OF SAND/MUD STONE SOURCE ROCKS[J].Journal of China University of Petroleum,1991(6). |
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| Authors: | Jin Qiang Xiong Jihui |
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| Institution: | Dept. of Petroleum Exploration |
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| Abstract: | This paper makes an analysis on the geochemical characteristics of source rocks in the southeastern part of the Dongpu Depession and gives a calculation of the porosity and fluid pressure of sand/mudstone section in a deep well in this area,as well as the amounts of hydrocarbon generated and expelled from the source rocks in sand/muds tone sequences.The relationship between hydrocarbon generated and kerogen type,initial abundance of organic matter and source rocks maturities is discussed in a quantitative way.The results show that the higher the original contents of organic carbon in the source rocks,the higher the rate of expelling hydrocarbon.The kerogen in the low organic matter source rocks hardly generated any liquid oil at all,but generated gas during the time of oil cracking under the condition of high or over maturity. |
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| Keywords: | Abundance of organic matter Hydrocarbon content Pri mary migration Qualit it ative analysis Dongpu depression |
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