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古地理学报 ›› 2001, Vol. 3 ›› Issue (3): 41-47. doi: 10.7605/gdlxb.2001.03.004

• 岩相古地理学及沉积学 • 上一篇    下一篇

准噶尔盆地阜东斜坡区侏罗系测井沉积相研究

张琴     王贵文     朱筱敏   

  1. 石油大学  北京  102200
  • 出版日期:2001-06-01 发布日期:2001-06-01
  • 作者简介:张琴,女,1973年生。2000年6月获石油大学(北京)硕士学位,现为该校博士生,主要从事测井沉积学和层序地层学研究工作。通讯地址:102200,北京昌平石油大学沉积岩教研室;电话:(010)69745566-3435

The study of Well Logging sedimentary facies of the Jurassic System of East Fukang Slope in Junggar Basin

Zhang Qin    Wang Guiwen     Zhu Xiaomin    

  1. Geoscience Department ,University of Petroleum ,Beijing,102200
  • Online:2001-06-01 Published:2001-06-01
  • About author:Zhang Qin,born in 1973,obtained Master degree from University of Petroleum(Beijing) in 2000.Now she studies for the Ph.D. degree and is engaged in logging sedimentology and sequence stratigraphy.

摘要:

本文就准噶尔盆地阜东斜坡区侏罗系测井沉积相研究进行了探讨。主要应用常规测井资料、地层倾角测井资料及成像测井资料为核心的测井相序列去分析和判断沉积类型以及沉积相。经过ANN岩相处理,看出典型的三角洲沉积岩相序列自下而上依次为三角洲前缘远砂坝、河口砂坝、分流间湾、水下分流河道、分之河道及分之河道间,将其结果与录井剖面对比,符合率非常高,为区域上关键井的相序分析及沉积体系分析提供了连续的较准确的岩相依据。通过古水流系统的确定,看出研究区侏罗系八道湾组-三工河组沉积时期的物源主要来自北部克拉美丽山以北地区。南部北三台地区以南存在次要物源。最后综合利用常规测井处理解释的岩性剖面、岩心刻度下处理出来的沉积学倾角解释成果(沉积构造和古水流)和ANN岩相处理解释成果,建立起了阜东斜坡区关键井目的层段的测井沉积亚、微相模型。

Abstract:

This paper is concerned about the study of well logging sedimentary facies of East Fukang Slope in Junggar Basin.It mainly applied common well logging data,dip logging data and image logging data to analyse and define the sediment and the sedimentary facies.The treatment of ANN lithofacies showed that typical delta facies included delta-front distal bar,mouth bar,subaqueous branch channel,interdistributary estuary,delta-plain branch channnel and interbranch channnel in ascending order.The correlation of lithofacies and logging section showed almost no difference,which contributed to the analysis of facies sequence and sedimentary system in the region.The definition of paleocurrent system showed that sediment source was mainly located in the north of Kelameili Montain, and there was a minor sediment source in the south of Beisantai region during Badaowan and Sangonghe formations deposited.In the end,Comprehending the lithologic section from the treatment and interpretation of common well logging data,the interpretation results of sedimentologic dip logging(including sedimentary structure and paleocurrent) on base of the core correction and ANN treatment results,we established the well logging sedimentary parfacies and minifacies model of Jurassic system in key well in East Fukang Slope.