新疆石油地质

›› 2015, Vol. 36 ›› Issue (4): 1-1.doi: 10.7657/XJPG20150420

• 论文 •    

塔河油田奥陶系碳酸盐岩地层燧石的测井识别

谢 芳1，柳建华2，刘瑞林1   

  1. (1.长江大学 地球物理与石油资源学院,武汉 430100;2.中国石化 西北油田分公司 勘探开发研究院,乌鲁木齐 831100)
  • 出版日期:2019-01-01 发布日期:1905-07-14

Log Identification of Chert in Ordovician Carbonate Rocks in Tahe Oilfield,Tarim Basin: Method and Application

XIE Fang1, LIU Jianhua2, LIU Ruilin1   

  1. (1.Institute of Geophysics and Oil Resource, Yangtze University, Wuhan, Hubei430100, China;2.Research Institute of Exploration and Development, Northwest Oilfield Company, Sinopec, Urumqi, Xinjiang831100, China)
  • Online:2019-01-01 Published:1905-07-14

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摘要： 塔河油田奥陶系鹰山组第4段及其以下的地层中广泛分布着结核状、条带状燧石，研究燧石的测井响应特征，区分燧石发育的非储集段，对有效评价储集层、划分地层及地层对比具有重要意义。通过讨论电成像测井、化学元素测井及岩性密度测井等识别燧石的基本原理，结合塔河油田的电成像图、化学元素测井资料及光电截面吸收指数曲线识别结核状、条带状燧石实例，建立了燧石测井资料识别方法；将鹰山组第4段底界附近的燧石密集发育段作为地层对比标志层，对塔河油田部分地层进行地层对比，讨论了塔河油田中上奥陶统的剥蚀量估算问题。

Abstract: Nodular and banded chert distribute extensively over the4th interval and underlying strata of the Ordovician Yingshan formation in Tahe oilfield in northern Tarim basin. Researching the logging response characteristics of chert and distinguishing the chert?developed formation are of significance to the evaluation of effective reservoir, formation zonation, and stratigraphic correlation. This paper discusses the basic principle of identifying chert by using imaging well logging, chemical element logging and litho?density logging data, and establishes the method for chert logging identification by means of these data and photoelectric absorption cross?section index curve. Taking the chert intensive development section near the bottom margin of Yingshan 4th lithologic interval as marker bed, it makes the stratigraphic correlation of partial strata and resolves the problem of the Middle-Upper Ordovician denudation estimation in Tahe oilfield

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