石油学报 ›› 2001, Vol. 22 ›› Issue (3): 22-26.DOI: 10.7623/syxb200103005

• 地质勘探 • 上一篇    下一篇

鄂尔多斯南部奥陶系马家沟群马六组白云岩成因

张传禄1, 张永生2, 康祺发2, 罗健1, 祁连爽1   

  1. 1. 中国石油勘探开发研究院北京100083;
    2. 石油大学北京100083
  • 收稿日期:1999-11-17 修回日期:2000-05-12 出版日期:2001-05-25 发布日期:2010-05-21
  • 作者简介:张传禄,男,1970年2月生.1995年毕业于石油大学地科系,获理学硕士学位.现为中国石油勘探开发研究院博士生.通讯处:北京910信箱博98.
  • 基金资助:
    国家“八五”科技攻关项目(85-102-02).

DOLOMITE GENESIS OF ORDOVICIAN SYSTEM IN FORMATION MALIU,SOUTHERN ORDOS BASIN

ZHANG Chuan-lu1   

  1. Research Institute of Petroleum Exploration and Development, Petro China, Beijing 100083, China
  • Received:1999-11-17 Revised:2000-05-12 Online:2001-05-25 Published:2010-05-21

摘要: 鄂尔多斯盆地古生界天然气的勘探及开发已经取得了很大的成绩,这些油气田的储集层或多或少与碳酸盐岩有着密切的关系.因此,碳酸盐岩中储集岩的成岩研究具有很大的现实意义.在对7条野外露头剖面和6口探井剖面进行现场观察的基础上,对上千块样品进行了系统的野外和室内分析.对鄂尔多斯盆地奥陶系马家沟群碳酸盐岩中最主要的岩石类型之一——白云岩的成因及其对储集性能的影响进行了综合研究.研究结果表明,本区白云岩是由多因素多期次形成的,白云岩形成过程中经过的成岩期次和顺序的不同排列,对白云岩的储集性能有很大的影响.

关键词: 鄂尔多斯, 奥陶系, 马六组, 白云岩, 成因

Abstract: Peleozoic gas exploration and development have achieved great progress in Ordos Basin.The Paleozoic explorations of deep formations in eastern area and western Tarim Basin are still in the ascendant.Reservoirs in these oil fields have less or more relationship with carbonates,which play a very important role in domestic and potential abroad(Middle East and Central Asian,etc) exploration and development markets. Therefore diagenesis research of carbonate reservoir has a great significance.Based on the field observations of seven field outcrop sections and six exploration wells,we integrally studied the genesis of dolomite and the influence factors for the reservoir properties by using various experimental methods on thousands of samples. Dolomite is one of the most important rock types in Ordovician Carbonates of Majagou Group in Ordos Basin.It is indicated that dolomites are multi-factor and multi-period genesis.The diagenesis periods and different array of sequence experienced in the formation of dolomite play overwhelming roles in reservoir properties.

Key words: Ordos Basin, Ordovician, Formation Maliu, Dolomite, genesis

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