门限控烃作用及其在有效烃源岩判别研究中的应用

姜振学; 庞雄奇; 金之钧; 周海燕; 王显东

门限控烃作用及其在有效烃源岩判别研究中的应用

姜振学^{1, 2},
庞雄奇^{1, 2},
金之钧^{1, 2},
周海燕^{1, 2},
王显东^{1, 2}

1.
石油大学盆地与油藏研究中心, 北京 102249
2.
教育部石油天然气成藏机理重点实验室, 北京 102249

基金项目:

国家“973”重大基础研究项目“中国典型叠合盆地油气聚散机理及定量研究 G1999043310

中国石油与天然气集团公司“九五”重大科技攻关项目“大、中型油气田成藏定量模式研究 960007

详细信息

作者简介:
姜振学(1963-), 男, 副教授, 1998年于中国地质大学(北京) 获博士学位, 主要从事油气成藏机理与油气资源评价工作

中图分类号: P618.130.2
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出版历程
- 收稿日期: 2002-08-12
- 刊出日期: 2002-11-25

Threshold Control over Hydrocarbons and Its Application in Distinguishing Valid Source Rock

JIANG Zhen-xue^{1, 2},
PANG Xiong-qi^{1, 2},
JIN Zhi-jun^{1, 2},
ZHOU Hai-yan^{1, 2},
WANG Xian-dong^{1, 2}

1.
Basin & Reservoir Research Center, University of Petroleum, Beijing 102249, China
2.
Key Laboratory for Hydrocarbon Accumulation, Ministry of Education, Beijing 102249, China

摘要

摘要: 油气在生排运聚成藏过程中需经历生烃门限、排烃门限、成藏门限和资源门限.某一确定的油气运聚成藏系统进入任一门限都将损耗一部分烃量, 实际地质条件下源岩生成的烃量只有超过进入各个门限时损耗烃量之和后才能大规模聚集成藏, 构成油气勘探的远景区; 只有提供的油气满足成藏过程中各种油气损耗形成工业油气聚集的源岩才称为有效烃源岩.阐明了各门限的地质含义、判别标准和控油气作用机理, 并将门限控烃作用在塔里木盆地台盆区古生界碳酸盐岩源岩评价中进行了应用.研究表明, 不存在一个放之四海而皆准的最小有机质丰度下限, 最小有机质丰度下限受源岩自身条件及成藏地质条件的共同影响.
- 成藏系统 /
- 门限控烃 /
- 有效源岩 /
- 资源评价 /
- 塔里木盆地
Abstract: A series of thresholds, such as thresholds of hydrocarbon generation, expulsion, accumulation and resources, may occur during reservoir formation. Part of hydrocarbons are consumed in certain reservoir system of petroleum when reaching a threshold. Oil and gas supplied by source rocks in practical geological conditions can be accumulated to form reservoir in larger scale and be of promising oil and gas exploration future only after hydrocarbon generation amount from the source rock is more than the sum of hydrocarbon lost across each threshold. Source rocks can be called valid source rock only when the excessive oil and gas come from them can form a commercial reservoir after the amount of hydrocarbons generated by the source rock meets the need of all kinds of wasting during the process of reservoir formation. The paper presents geologic meanings, judging standards, mechanisms of controlling oil and gas of thresholds and their application in Paleozoic carbonate source rock evaluation in Tarim basin. Researches indicate that there is not a minimum lower limit of organic matter abundance which can be used validly everywhere. While the minimum lower limit of organic matter abundance was affected by conditions of the source rock itself, together with the geological conditions of reservoir formation.
- reservoir formation system /
- thresholds controlling on hydrocarbon /
- valid source rock /
- resources evaluation /
- Tarim basin

HTML全文

图 1 门限控烃作用定量研究地质概念模型

Fig. 1. Geological model in quantitative research of thresholds controlling on hydrocarbon

下载: 全尺寸图片幻灯片

图 2 塔里木盆地碳酸盐岩源岩排烃门限判别理论

Fig. 2. Academic plate of deciding expulsion hydrocarbon threshold of carbonate source rock in Tarim basin

下载: 全尺寸图片幻灯片

图 3 塔里木盆地碳酸盐岩源岩油气资源门限判别理论

Fig. 3. Academic plate of deciding oil and gas resources threshold of carbonate source rock in Tarim basin

下载: 全尺寸图片幻灯片

表 1 塔里木盆地古生界源岩进入各地质门限最小有机质丰度下限统计

Table 1. Statistics of minimum lower limit of organic matter abundance at the time of Paleozoic carbonate source rock entering each geological threshold in Tarim basin

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