新疆石油地质

新疆石油地质 ›› 2005, Vol. 26 ›› Issue (4): 426-427.

• 应用技术 • 上一篇    下一篇

利用测井曲线活度划分准层序

朱剑兵1, 赵培坤2   

  1. 1.中国石化 胜利油田分公司物探研究院,山东 东营257061;
    2.同济大学海洋与地球科学学院,上海200092
  • 收稿日期:2004-12-03 出版日期:2005-08-01 发布日期:2020-11-23
  • 作者简介:朱剑兵(1977-),男,浙江金华人,博士,层序地层学,(Tel)0546-8397436(E-mail)zhujianb99@hotmail.com.
  • 基金资助:
    国家973研究项目,中国典型叠合盆地层序地层分析与构造古地理（G1999043304）资助

Application of Well Log Activity Curve to Parasequence Classification

ZHU Jian-bing1, ZHAO Pei-kun2   

  1. 1. Institute of Farth Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China;
    2. Institute of Ocean and Earth Science, Tongji University, Shanghai 200092, China
  • Received:2004-12-03 Online:2005-08-01 Published:2020-11-23

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摘要： 通过分析测井曲线活度的性质及其地质意义,发现利用活度曲线可以识别准层序单元的界面。以胜利油田坨715井沙三中第I层序湖退体系域为例，结合实际岩心的分析在该段划分了3个准层序单元。经过该段3类测井曲线(自然电位、电阻率、自然伽马)的活度分析发现可以完全识别出这3个准层序单元，而且自然电位曲线的识别效果最好。利用测井活度的统一性 并结合实际提出了多条测井曲线活度加权综合识别的方法。实践表明,该方法具有一定的可行性和实用性,也具有较好的效果。

关键词: 层序地层学, 层序, 测井曲线, 活度, 识别

Abstract: The characteristic and significance of well log activity curves that can be used to identify the interface of parasequence unit are analyzed. Example is taken from the regression system tract of No.2 sequence in the third middle member of Shahejie formation in T-715 Well of Sheng li oilfield. Integrating with the field core analysis, three parasequence units are classified and can be well identified by using three kinds of activity curves (SP, RT and GR), of which SP logs can be used to identify high-resolution sequence. The study shows that the method of weighting several activity curves for identification of parasequence units is of feasibility, applicability and good efficiency.

Key words: sequence stratigraphy, sequence, well logs, activity curve, identification

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