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现代地质 ›› 2005, Vol. 19 ›› Issue (Suppl): 74-79.

• 石油地质 • 上一篇    下一篇

新疆塔河油田奥陶系储层裂缝系统特征及控制因素

肖玉茹1,何峰煜2   

  1. 1中国石油化工股份有限公司 石油勘探开发研究院,北京100083;
    2中国石油化工股份有限公司 国际勘探开发公司,北京100083
  • 收稿日期:2004-09-24 修回日期:2004-10-12 出版日期:2005-03-20 发布日期:2013-04-08
  • 作者简介:肖玉茹,女,高级工程师,博士,1968年出生,石油地质学专业,主要从事油气田勘探和开发等方面的工作。

FRACTURE SYSTEM AND ITS CONTROLLING FACTORS IN ORDOVICIAN RESERVOIR OF THE TAHE OILFIEL

XIAO Yu-ru1,HE Feng-yu2   

  1. 1 Exploration & Production Research Institute, SINOPEC, Beijing100083,China;
    2 International Exploration & Production Company, SINOPEC, Beijing100083,China
  • Received:2004-09-24 Revised:2004-10-12 Online:2005-03-20 Published:2013-04-08

摘要:

塔河油田是新疆塔里木盆地近年来发现的亿吨级大型碳酸盐岩油田,裂缝系统是奥陶系储层的主要储集空间。通过碳酸盐岩油藏的精细描述技术,建立了裂缝系统的原模型。裂缝分为两类,一种是构造裂缝、另一种是成岩裂缝。微裂缝较发育,大部分都含油。裂缝组系方向主要有两组:一组走向为北东东—南西西向,另一组走向近南北向。根据裂隙展布、裂隙间关系、裂隙充填物的岩石化学和地球化学特征,奥陶系碳酸盐岩发育的裂隙系统大致可分为4期,分别为加里东期、海西早期、海西晚期—印支期和燕山—喜山期 。裂缝形成与发育的控制因素主要为岩性、岩层厚度、断裂作用、构造应力场特征、局部构造、岩溶作用、埋藏深度等方面。

关键词: 塔里木盆地, 塔河油田, 奥陶系, 裂缝系统

Abstract:

Tahe oilfield, discovered in the Tarim Basin of Xinjiang has 0.1 billion tons of OOIP. Fracture system is a main reservoir type in the Tahe oilfield. The original model of the fracture system was built by the fine carbonate reservoir description. The fractures were divided into structural fracture and diagenetic fracture. The microfractures were developed well and most of them were oil-bearing. There were two strike directions of fracture: one was NEE—SWW,another was nearly S—N. According to the relationship between the fractures and their distributions, the characteristics of rock chemistry and geochemistry of the fractures,the development of the fractures of carbonate reservoir in Ordovician were divided into four periods: the Caledonian period, the early Hercynian period,the late Hercynian-Indosinian period and Yashan-Himalayan period, The controlling factors of formation and development of the fractures were summarized,such as lithology,the thicknesses of the strata, the fault function,the characteristics of structure stress, the local structure,the changes of strata loading, karst and buried depths etc.

Key words: the Tarim Basin, Tahe oilfield, Ordovician, fracture system

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