湖相烃源岩生烃增压模拟实验

doi:10.7623/syxb2013S1007

石油学报 ›› 2013, Vol. 34 ›› Issue (增刊一): 65-69.DOI: 10.7623/syxb2013S1007

湖相烃源岩生烃增压模拟实验

马卫, 王东良, 李志生, 杜天威

中国石油勘探开发研究院廊坊分院中国石油天然气集团公司天然气成藏与开发重点实验室河北廊坊 065007

收稿日期:2013-04-19 修回日期:2013-07-12 出版日期:2013-09-25 发布日期:2013-09-15
通讯作者: 马卫
作者简介:马卫,男,1984年9月生,2008年获山东科技大学学士学位,2011年获中国石油勘探开发研究院硕士学位,现为中国石油勘探开发研究院廊坊分院助理工程师,主要从事油气地质研究。Email:mawei69@petrochina.com.cn
基金资助:
国家重大科技专项"中国大型气田形成条件、富集规律及目标评价"(2011ZX05007)资助

A simulation experiment of pressurization during hydrocarbon generation from lacustrine source rocks

MA Wei, WANG Dongliang, LI Zhisheng, DU Tianwei

Langfang Branch, PetroChina Research Institute of Exploration and Development; CNPC Key Laboratory of Gas Reservoir Formation and Development, Langfang 065007, China

Received:2013-04-19 Revised:2013-07-12 Online:2013-09-25 Published:2013-09-15

摘要/Abstract

摘要：

烃源岩生烃增压值的大小直接影响着湖相泥岩的排烃效果。利用实验模拟方法,测定了湖相泥岩的生烃增压值,并归纳了其影响因素。实验测得的生烃增压最大值约为上覆静岩压力的54% ,表明生烃增压可以成为湖相烃源岩的主要排烃动力。热演化程度、有机质类型以及有机质丰度对湖相烃源岩生烃增压起促进作用。在相同实验条件下,有机质类型越好,有机质丰度对生烃增压的影响越明显;有机质丰度越高,有机质类型对湖相泥岩生烃增压的影响越明显。静岩压力对生烃增压起抑制作用。

关键词: 湖相烃源岩, 生烃增压, 模拟实验, 有机质类型, 有机质丰度, 静岩压力

Abstract:

The level of pressurization during hydrocarbon generation directly affects efficiency of hydrocarbon expulsion from lacustrine source rocks. In this study, a simulation experiment is conducted for quantitative analysis of pressurization during hydrocarbon generation from lacustrine source rocks. Major factors that control this process are identified and discussed. Maximum of pressurization during hydrocarbon generation is approximately 54% of overlying lithostatic pressure, indicating that hydrocarbon generation pressurization is the primary driving force for hydrocarbon expulsion from lacustrine source rocks. The degree of thermal evolution, type and abundance of organic matter show positive effects on pressurization during hydrocarbon generation. Under the same experimental conditions, the higher grade of organic matter type, the stronger effect of abundance of organic matter on hydrocarbon-generating pressurization; the higher abundance of organic matter, the stronger influence of organic matter type on hydrocarbon-generating pressurization. In contrast, lithostatic pressure plays a negative role in pressurization during hydrocarbon generation.

Key words: lacustrine source rock, pressurization of hydrocarbon generation, simulation experiment, organic matter type, organic matter abundance, lithostatic pressure

中图分类号:

TE125.2

马卫, 王东良, 李志生, 杜天威. 湖相烃源岩生烃增压模拟实验[J]. 石油学报, 2013, 34(增刊一): 65-69.

MA Wei, WANG Dongliang, LI Zhisheng, DU Tianwei. A simulation experiment of pressurization during hydrocarbon generation from lacustrine source rocks[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(增刊一): 65-69.

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湖相烃源岩生烃增压模拟实验

A simulation experiment of pressurization during hydrocarbon generation from lacustrine source rocks

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