西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

A 油田断裂调节构造坡折带特征及其控砂模式

王巍1 *,范廷恩2,胡光义2,牛涛2,王国栋3   

  1. 1. 中海石油(中国)有限公司开发生产部,北京东城100010
    2. 中海油研究总院,北京朝阳100028
    3. 中海石油(中国)有限公司天津分公司,天津塘沽300452
  • 出版日期:2015-12-01 发布日期:2015-12-01
  • 通讯作者: 王巍,E-mail:wangwei@cnooc.com.cn

Characteristics of Fault Accommodation Structure Slope Break#br# Zone and the Sand Control Pattern in A Oilfield

Wang Wei1*, Fan Tingen2, Hu Guangyi2, Niu Tao2, Wang Guodong3   

  1. 1. Department of Development & Production,CNOOC,Dongcheng,Beijing 100010,China
    2. Research Institute of CNOOC,Dongcheng,Chaoyang,Beijing 100028,China
    3. Tianjin Branch of China Offshore Oil Company Ltd.,Tanggu,Tianjin 300452,China
  • Online:2015-12-01 Published:2015-12-01

摘要:

A 油田在东营期断裂活动剧烈而复杂,平面上表现为三角洲朵叶体的迁移,纵向上表现为多期砂体叠置,地
层厚度和砂体发育程度具有强烈的不均一性。通过对研究区断裂活动以及断裂活动控制形成的调节构造坡折带特
征的研究,发现东营期在主走滑断层右旋走滑运动下,产生了大量具有张扭性质的伴生断层,这些不同规模、不同产状
的断层在空间上的组合形成了多种调节构造坡折带类型,对物源的导入及其向凹陷中心的多级分散具有明显控制作
用,尤其是形成的断沟、断槽等古地貌对物源供给水系起着重要的汇聚和引导作用。受调节构造坡折带影响,目的层
段在研究区范围内存在东西两个物源,主要发育三角洲前缘和前三角洲两种亚相及水下分流河道、河口坝、席状砂、浊
积砂等多种微相。

关键词: 辽中凹陷, 调节带, 坡折带, 沉积模式, 东营组

Abstract:

The study finds that the faults activities are severe and complicated during Dongying Formation in A Oilfield. The
sedimentary face is expressed in delta lobes migration in the plane and superimposed sand body in the longitudinal stage,and
the thickness of formation and the degree of sand body are of strong heterogeneity. The dextral movement of main strikeslip
generated a large amount of associated faults with characteristics of transtension. The faults of different size and attitude
distributed in space form a various types of fault accommodation structure-type slope break belts,and they obviously control
the import of source and multistage dispersion to the centre of sag. Especially the formation of gap and faulted trough play an
important role in the convergence and guidance of the drainage system. Under the effects of fault accommodation structure-slope
break zone,there are two sources within the study area,and the sedimentary face of interval is deltaic environment and the delta
could be further separated into three subfacies including delta plain,delta front,former delta and many kinds of microfacies
such as distributary channel,mouth bar,sheet sand,turbidite sand and so on.

Key words: Liaozhong Sag, accommodation zones, slope-break zone, sedimentary model, Dongying Formation

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