关于碳酸盐烃源岩的评价标准

秦建中; 刘宝泉; 国建英; 刘井旺; 于国营; 郭树芝

doi:10.11781/sysydz200403281

关于碳酸盐烃源岩的评价标准

doi: 10.11781/sysydz200403281

1.
中国石化石油勘探开发研究院无锡实验地质研究所, 江苏无锡 214151
2. 中国石油华北油田勘探开发研究院, 河北任丘 062552

详细信息

作者简介:
秦建中(1957- ),男(汉族),河北邯郸人,教授级高级工程师,主要从事石油地质和有机地球化学方面的研究工作.

中图分类号: TE122.1
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出版历程
- 收稿日期: 2002-01-25
- 修回日期: 2004-04-19
- 刊出日期: 2004-05-25

DISCUSSION ON THE EVALUATION STANDARDS OF CARBONATE SOURCE ROCKS

1.
Wuxi Research Institute of Experimental Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China
2. Research Institute of Petroleum Exploration and Development, Huabei Oilfield, PetroChina, Renqiu, Hebei 062552, China

摘要

摘要: 通过模拟实验测得碳酸盐岩排烃下限值为TOC=0.06%～0.12%,并提出碳酸盐岩排烃下限值与碳酸盐烃源岩有机碳下限值应是两个概念。排烃下限值是烃源岩所固有的特性,不是人们自己设定的标准,而烃源岩有机碳下限值是一个评价标准,大小可以等于或大于排烃下限值,而不能小于排烃下限值。通过对碳酸盐岩有机质丰度、有机质类型、有机相和成熟度的研究,修正了过去碳酸盐岩只按Ⅰ类有机质的评价方法,而将碳酸盐岩有机质分为Ⅰ,Ⅱ₁,Ⅱ₂₃类,将碳酸盐烃源岩划分为4类,即很好烃源岩、好烃源岩、中等烃源岩、差烃源岩。未熟—成熟碳酸盐烃源岩有机碳下限值为0.2%～0.4%;高成熟—过成熟碳酸盐烃源岩有机碳下限值为0.1%～0.25%。
- 模拟实验 /
- 碳酸盐岩 /
- 烃源岩 /
- 评价标准
Abstract: The prescribed minimum of hydrocarbon expulsion of carbonate is measured to be TOC=0.06%-0.12% through simulating tests,and it is considered that its conception and total organic carbon lower limits of carbonate source rocks are different.The former is the origin character of rocks,not a giving standard.The total organic carbon lower limit of carbonate source rocks is a evaluating standard,and its value can be equal to or more than the prescribed minimum of hydrocarbon expulsion of carb(-onate),but not less than that.By means of the research of richness,type,facies and maturity of organic matter in carbonate source rock,the evaluating standards that carbonate had been considered as typeⅠkerogen have been amended as types Ⅰ,Ⅱ₁,Ⅱ₂ kerogen,and carbonate source rock has been divided as four types,that is,very good source rock,good source rock,fair source rock and poor source rock.The total organic carbon lower limits of carbonate source rock is 0.2% to 0.4% in immature and mature stages;and 0.1% to (0.25%) in high mature and past mature stages.
- simulating test /
- carbonate /
- source rock /
- evaluating standard

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参考文献(12)

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