新疆石油地质

新疆石油地质 ›› 2003, Vol. 24 ›› Issue (4): 292-295.

• 油气勘探 • 上一篇    下一篇

靖安油田上三叠统长6储集层成岩作用

李斌1, 朱永铭1, 童孝华1, 赵惊蛰2, 刘莉莉2   

  1. 1. 成都理工大学能源学院,四川 成都 610059;
    2.中国石油长庆油田分公司勘探开发研究院,陕西 西安 710021
  • 收稿日期:2002-10-09 发布日期:2021-01-13
  • 作者简介:李斌(1977-),男,新疆奎屯人,在读硕士研究生,石油地质。联系电话:028-84079011

Diagenesis of Chang-6 Reservoir of Upper Triassic in Jing'an Oilfield of Ordos Basin

LI Bin1, ZHU Yong-ming1, TONG Xiao-hua1, ZHAO Iing-zhe2, LIU Li-li2   

  1. 1. College of Energy, Chengdu University of Technology, Chengdu, Sichuan 610059, China;
    2. Research Institute of Exploration and Development, Changqing Oilfield, PetroChina, Xi'an, Shaanxi 710021, China
  • Received:2002-10-09 Published:2021-01-13

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摘要： 通过对5条剖面和11口探井的综合研究,认为靖安油田上三叠统延长组长6储集层经历了压实、胶结、溶蚀等一系列复杂的成岩作用,成岩现象十分丰富,特征明显。从储集层储集性能的成岩作用研究表明,早成岩期的压实作用、多种矿物胶结作用是使储集层物性变差、孔隙度降低的两个重要的成岩控因;而溶蚀作用,特别是浊沸石矿物的溶蚀是储集层物性变好的重要成岩控制因素之一。

关键词: 鄂尔多斯盆地, 成岩作用, 碎屑岩, 储集层, 浊沸石

Abstract: The composite study of five sections and 11 exploratory wells shows that Chang-6 reservoir of Yanchang formation of Upper Trias-sic in Jing'an oilfield underwent a series of complex diageneses with compaction, cementation and dissolution with various and distinctive features. The study shows that the early diagenetic compaction and multi-mineral cementation are major effective factors that lead to its poor petrophysical property and low porosity; while dissolution, in particular, dissolution of laumontite is one of significant factors controlling the quality of reservoir.

Key words: Ordos basin, diagenesis, clastic rock, reservoir, laumontite

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