天然气地质学

鄂尔多斯盆地安塞油田长101段储层砂岩成岩作用研究

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  • 1.中国石油长庆油田分公司勘探开发研究院,陕西 西安 710018; 
    2.低渗透油气田勘探开发国家工程实验室,陕西 西安 710018; 
    3.中国石油长庆油田分公司油气工艺研究院,陕西 西安 710018
辛红刚(1979-),男,陕西宝鸡人,工程师,硕士,主要从事油藏评价研究.

收稿日期: 2011-04-02

  修回日期: 2011-05-23

  网络出版日期: 2011-08-10

Diagenesis of Chang101 Sandstone Reservoir in Ansai Oilfield of  Ordos  Basin

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  • 1.Research Institute of Exploration and Development,PetroChina Changqing Oilfield Company,Xi′an 710018,China;
    2.Key Laboratory of Petroleum Resources Research,Xi′an 710018,China;
    3 Research Institute of Petroleum Technics,PetroChina Changqing Oilfield Company,Xi′an 710018,China

Received date: 2011-04-02

  Revised date: 2011-05-23

  Online published: 2011-08-10

摘要

根据砂岩薄片、铸体薄片、扫描电镜、X-射线衍射等分析,采用定量计算方法,对安塞油田长101段储层成岩作用进行研究。研究表明:该区长101段储层砂体成分主要以长石砂岩为主,储层砂岩处于中成岩B期,早期的压实作用、多种矿物胶结作用是造成物性变差的2个重要成岩作用,而溶蚀作用,特别是浊沸石、长石的溶蚀是储层物性变好的重要成岩控制因素。结合成岩作用类型及定量表征将该区成岩相划分为5种类型,成岩相控制了高渗储层的分布。

 

本文引用格式

辛红刚, 张振红, 云正文, 刘晓英 . 鄂尔多斯盆地安塞油田长101段储层砂岩成岩作用研究[J]. 天然气地球科学, 2011 , 22(4) : 588 -594 . DOI: 10.11764/j.issn.1672-1926.2011.04.588

Abstract

Based on measurement of thin section,casting thin section,scanning electron microscope,and X-ray diffraction for Chang 101 sandstone reservoir,we use the quantitatively calculating methods to study the diagenesis of Chang 101 sandstone reservoir in the Ansai oilfield. The feldspar sandstone is dominant n the sandstone.The diagenesis of sandstone reservoir is fallen into the middle degree stage B.The actions for the poor-quality reservoir are both early compaction and cementation of several minerals.Dissolution (especially feldspar and laumontite dissolution) is a factor for improving the reservoir property.Considering diagenetic types and quantitative characters,five kinds of diagenetic facies are classified.the diagenetic facies control the distribution of the highly permeable reservoir.

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