新疆石油地质

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (2): 183-184.

• 应用技术 • 上一篇    下一篇

应用地震解释技术识别湖底扇——以克拉玛依油田为例

董文波1a, 吴雨韩1b, 吴采西2, 毛丹凤1a   

  1. 1.长江大学a.地球物理与石油资源学院;b.地球科学学院,湖北荆州 434023;
    2.中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依 834000
  • 收稿日期:2010-09-19 发布日期:2020-08-11
  • 作者简介:董文波（1986-）,男,辽宁盘锦人,在读硕士研究生,地球物理,（Tel）13997573797（E-mail）dongwenbo.163@163.com.

Sublacustrine Fan Identification by Seismic Interpretation Technology—An example from Karamay oilfield

DONG Wen-bo1a, WU Yu-han1b, WU Cai-xi2, MAO Dan-feng1a   

  1. 1. Yangtze University, a. Institute of Geophysics and Oil Resources, b. Institute of Earth Science, Jingzhou, Hubei 434023, China;
    2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2010-09-19 Published:2020-08-11

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摘要： 湖底扇已成为岩性油气藏勘探的重要领域。以克拉玛依油田中拐五-八区克81 井东区二叠系下乌尔禾组湖底扇的识别为例,首先,建立湖底扇的地震识别模式,在深湖-半深湖亚相区域,根据地震反射波同相轴的外形反射特征及内部反射结构特征进行湖底扇的识别,再综合运用三维地震多属性分析、谱分解、层拉平等多种地震解释技术对预测的湖底扇加以佐证,并确定其平面的展布范围,从而验证了该方法的适用性。

关键词: 三维地震, 湖底扇, 岩性圈闭, 地震属性, 频谱分解, 层拉平

Abstract: Sublacustrine fan is a kind of deposit of gravity flow developed on slope of deep lake-bathyal subfacies area, which occurs widely in most of the continental sedimentary basins. In view of its distribution in group, it has become a major domain for petroleum exploration of lithologic reservoirs. Taking the sublacustrine fan of Lower Wuerhe formation of Permian in K-81 Well east area of Karamay oilfield as an example, this paper presents the seismic identification model for the sublacustrine in deep lake-bathyal subfacies area from the outside reflection feature and inner reflected structure of the seismic reflection event, integrated with seismic multi-attribute analysis, spectrum decomposition and layer flattening techniques for verification, and finally confirms its range in plane distribution.

Key words: 3D seismic survey, sublacustrine fan, lithologic trap, seismic attribute, spectrum decomposition, layer flattening

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