新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (3): 264-266.

• 油气勘探 • 上一篇    下一篇

确定烃类恢复系数的临界点分析法

吴欣松1,2, 韩德馨1, 张祥忠1   

  1. 1.中国矿业大学,北京100083;
    2.石油大学,北京102249
  • 收稿日期:2003-07-28 发布日期:2020-09-18
  • 作者简介:吴欣松(1969-),男，安徽宿松人,讲师,在读博士研究生,油气田开发。联系电话:010-89733758。

Critical Point Analysis of Hydrocarbon Recovering Coefficients

WU Xin-song1,2, HAN De-xin1, ZHANG Xiang-zhong1   

  1. 1. China University of Mining Technology, Beijing 100083, China;
    2. University of Petroleum, Beijing 102249, China
  • Received:2003-07-28 Published:2020-09-18

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摘要： 在利用地球化学录井资料进行油层产液性质评价过程中，如何准确地对烃类损失进行恢复是-一个非常关键的环节。由于引起烃类损失的因素众多,而实际工作中岩心分析资料常常缺乏或者与其他分析资料不配套,从而造成恢复系数的确定异常困难。针对这一问题,提出了一种全新的研究思路和相应的恢复方法一-临界点分析法，它首先利用烃类组分含量与轻重组分含量比值之间关系图,确定出含有可动油层与不含可动油层之间的临界点,进而通过不同类型分析样品临界点热解参数值的对比来确定恢复系数。该方法不仅从理论上可以得到科学的解释,而且在实际中应用.取得了较好的效果。

关键词: 地球化学, 录井, 烃类组分, 临界点, 分析

Abstract: How to accurately recover the losing hydrocarbon by pyrolysis geochemistry logging is a crucial step for reservoir fluid-produc-ing evaluation. It is very difficult to determine the recovering coefficients due to lack or less integrity of data in real core analysis. Fordealing with this problem, a new method called critical point analysis is proposed in this paper. It can be used to find the critical point bydrawing the scatter plot of hydrocarbon composition content versus the ratio of the light/ weight hydrocarbon composition contents, andthen to calculate the recovering coefficient by contrasting the py rolysis parameters of critical point for different types of fluid samples.This method can be not only explained reasonably in terms of theory, but also be reliable for practical application.

Key words: geochemistry, mud logging, hydrocarbon composition, critical point, analysis

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