天然气地球化学勘探

不同赋存状态轻烃的分析技术及石油地质意义

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  • (1.成都理工大学材料与化学化工学院,四川 成都  610059; 2.中国石化勘探开发研究院石油化探研究所,安徽 合肥 230022)
李广之(1970-),男,安徽长丰人,高级工程师,现从 事实验分析工作.

收稿日期: 2006-05-12

  修回日期: 2006-08-25

  网络出版日期: 2008-06-20

ANALYTIC TECHNIQUES AND PETROLEUM GEOLOGICAL SIGNIFICANCE OF DIFF ERENT EXISTING STATES OF LIGHT HYDROCARBONS

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  • (1.College of Materials and Chemistry & Chemical Engineeri ng, Chengdu University of Technology,  Chengdu 610059, China; 2.Institute of Pe troleum Geochemical Exploration, Institute of Petroleum  Exploration and Develop ment, SINOPEC, Hefei 230022,China)

Received date: 2006-05-12

  Revised date: 2006-08-25

  Online published: 2008-06-20

摘要

油气藏中的轻烃在向介质中运移时,必然要和介质进行物质和能量的交换。依据轻烃与介质作用的本质,可以把轻烃在自然界的赋存状态分为游离态、溶解态、物理吸附态、化学吸附态及水合态。各赋存状态轻烃在介质的作用下存在着动态的平衡关系,且与油气藏的相关性有所不同。轻烃的定量提取分为相对定量提取与绝对定量提取,各赋存状态轻烃有着相应的定量计算公式。所分析出的各赋存状态轻烃的组分及含量特征具有重要的石油地质意义。

本文引用格式

李广之,胡 斌,邓天龙,袁子艳 . 不同赋存状态轻烃的分析技术及石油地质意义[J]. 天然气地球科学, 2007 , 18(1) : 111 -116 . DOI: 10.11764/j.issn.1672-1926.2007.01.111

Abstract

When light hydrocarbons migrate from oil and gas reservoirs to the surrounding areas, they will exchange substances and energy with the surrounding materials. According to the essence of action, the existing states of the light hydrocarbons can be divided into five kinds: free hydrocarbon, dissolved hydrocarbon, geophysically adsorbed hydrocarbon, geochemically adsorbed hydrocarbon and hydration hydrocarbon. There is a dynamical equilibrium between five existing states of the light hydrocarbons. The relativity of every existing state to the petroleum reservoirs is different. We can quantify the light hydrocarbons comparatively or absolutely by using the corresponding quantification formulae. The physicochemical adsorption states and compositional characteristics of light hydrocarbons embr ace abundant and important geochemical information.

参考文献

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[2]  李广之.轻烃地球化学场的形成和特征 [J ].石油与天然气地质,1999,(1):66-6 9. 
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[4]  李广之,胡斌,袁子艳,等.轻烃的吸附与解吸模型 [J ].天然气地球科学,2006, 17(4):552-558.  
 [ 5 ]  钱铭云.钻井地化剖面上烃气垂向微运移的迹象 [C ]//第四届全国油气化探学术会 议论文集.1998:37-40.  
[ 6 ]  李广之,汪林自.吸附态轻烃的解吸与分析 [J ].物探与化探,2000,(1):34-42.   
[ 7 ]  李广之,吴向华.异构比和的石油地质意义 [J ].物探与化探,2002,(2):135-13 9. 

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