石油学报 ›› 2018, Vol. 39 ›› Issue (8): 890-901.DOI: 10.7623/syxb201808005

• 地质勘探 • 上一篇    下一篇

华北地台中北部寒武系-奥陶系白云岩储层特征及主控因素

崔永谦1, 汪建国2, 田建章1, 赵宗举2, 肖阳1, 王培玺2, 田然1, 宋春刚3, 肖飞4   

  1. 1. 中国石油华北油田公司勘探开发研究院 河北任丘 062552;
    2. 中国石油学会 北京 100724;
    3. 中国地质大学地球科学与资源学院 北京 100083;
    4. 中国地质大学能源学院 北京 100083
  • 收稿日期:2017-07-24 修回日期:2018-07-18 出版日期:2018-08-25 发布日期:2018-09-04
  • 通讯作者: 崔永谦,男,1966年10月生,1988年获江汉石油学院地球物理勘探专业学士学位,2005年获中国科学院地球物理勘探专业博士学位,现为中国石油华北油田公司勘探开发研究院教授级高级工程师,主要从事地质综合研究与科研管理工作。Email:wty_cyq@petrochina.com.cn
  • 作者简介:崔永谦,男,1966年10月生,1988年获江汉石油学院地球物理勘探专业学士学位,2005年获中国科学院地球物理勘探专业博士学位,现为中国石油华北油田公司勘探开发研究院教授级高级工程师,主要从事地质综合研究与科研管理工作。Email:wty_cyq@petrochina.com.cn
  • 基金资助:

    中国石油天然气股份有限公司重大科技专项(2017E-15)和中国石油天然气股份有限公司"渤海湾盆地综合地质研究与预探目标优选"项目(kt2017-07-04)资助。

Reservoir characteristics and main controlling factors of Cambrian-Ordovician dolomite in the north central part of North China Platform

Cui Yongqian1, Wang Jianguo2, Tian Jianzhang1, Zhao Zongju2, Xiao Yang1, Wang Peixi2, Tian Ran1, Song Chungang3, Xiao Fei4   

  1. 1. Exploration and Development Research Institute, PetroChina Huabei Oilfield Company, Hebei Renqiu 062552, China;
    2. Chinese Petroleum Society, Beijing 100724, China;
    3. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;
    4. School of Energy Resources, China University of Geosciences, Beijing 100083, China
  • Received:2017-07-24 Revised:2018-07-18 Online:2018-08-25 Published:2018-09-04

摘要:

华北地台中北部寒武系-奥陶系发育白云岩,主要分布在府君山组、馒头组上部、毛庄组上部、张夏组中部、冶里组上部、亮甲山组上部、下马家沟组、上马家沟组以及峰峰组下部。通过野外露头、岩心等资料分析了白云岩储层的成因及控制因素。其岩石类型为具有原岩结构泥微晶白云岩和颗粒白云岩,以及无原岩结构的粉晶白云岩、细晶白云岩、中-粗晶白云岩等。白云岩储集空间类型有晶间孔、晶间溶孔、晶内溶孔、粒间孔、粒内溶孔、溶蚀孔洞以及少量溶蚀缝,并以晶间孔、晶间溶孔为主。寒武系-奥陶系白云岩主要形成于蒸发白云石化作用、渗透回流白云石化作用、埋藏白云石化作用、构造热液白云石化作用等过程中,有利的沉积环境、持续的白云石化作用和不同时期的溶蚀作用共同控制了研究区白云岩储层的形成。

关键词: 白云岩储层, 储集空间类型, 沉积环境, 白云石化作用, 寒武系-奥陶系, 华北地台

Abstract:

To study the genesis and controlling factors of dolomite reservoirs, through the analysis on field outcrop, core and other data, the Cambrian-Ordovician dolomites developed in the north central part of North China Platform are mainly distributed in the Fujunshan Formation, upper part of Mantou Formation, upper part of Maozhuang Formation, middle part of Zhangxia Formation, upper part of Yeli Formation, upper part of Liangjiashan Formation, lower part of Majiagou Formation, upper part of Majiagou Formation and lower part of Fengfeng Formation. The rock types include the microcrystalline dolomite and granular dolomite with protolith structure as well as the micritic dolomite, fine dolomite and medium dolomite without protolith structure. The storage space of the Cambrian-Ordovician dolomite reservoirs include intercrystalline pore, intercrystalline dissolution pore, intracrystalline dissolution pore, intergranular pore, intragranular dissolution pore, intragranular dissolution vug and a small amount of dissolution fractures, dominated by intercrystalline pore and intercrystalline dissolution pore. The Cambrian-Ordovician dolomite is mainly formed in the process of evaporative dolomitization, permeation and dolomitization, burial dolomitization, and tectonic hydrothermal dolomitization. The favorable sedimentary environment, continuous dolomitization and the dissolution in different periods jointly control the formation of dolomite reservoir in the study area.

Key words: dolomite reservoir, reservoir space type, sedimentary environment, dolomitization, Cambrian-Ordovician, North China Platform

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