西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (2): 19-23.

• 地质勘探 • 上一篇    下一篇

巴喀地区西山窑组致密砂岩储层成岩作用研究

刘登明1,2,3,龙群芬4,王时林5,秦章晋6   

  1. 1. 中国科学院地化所,广东广州510640;2. 中国科学院研究生院,北京海淀100049;3. 中国石油东方地球物理公司研究院,河北涿州072751;4. 中国石化西南油气分田公司生产运行处,四川成都610016;5. 西南石油大学研究生院,四川成都610500;6. 成都理工大学能源学院,四川成都610059
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-04-01 发布日期:2012-04-01

Diagenesis of Tight Sandstone in Xishanyao Formation of Baka Aera

Liu Dengming1,2,3, Long Qunfen4, Wang Shilin5, Qin Zhangjin6   

  1. Liu Dengming1,2,3, Long Qunfen4, Wang Shilin5, Qin Zhangjin6
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-04-01 Published:2012-04-01

摘要: 通过岩芯及薄片的观察,结合扫描电镜、X 衍射和阴极发光等资料分析,对巴喀地区西山窑组致密砂岩储层
成岩作用进行了研究。结果表明:巴喀地区西山窑组在辫状河三角洲相和湖泊相环境下形成了一套低孔、低渗的长石
质岩屑砂岩和岩屑砂岩;成岩作用主要处于中成岩A 期,主要的成岩作用类型有压实作用、胶结作用和溶蚀作用,其
中,压实作用对储层的破坏性最大,溶解作用对储层有一定的建设性作用。

关键词: 吐哈盆地, 巴喀地区, 西山窑组, 致密砂岩, 成岩作用

Abstract: Diagenesis of tight sandstone in Xishanyao Formation Baka aera is carried out by observing the core in the field and
identifying thin section as well as analyzing scanning electron microscope(SEM),X-ray diffraction and cathodoluminescence.
The results indicate that feldspathic litharenite and litharenite with low porosity and permeability are reservoirs in Xishanyao
Formation in Baka area under the environmental effect of braided river delta and lacustrine facies. Diagenesis is at mesogenetic A
stage,and its types involve compaction,cementation,dissolution with compaction as the most destructive effect and dissolution
as main constructive diagenesis.

Key words: Tuha Basin, Baka Area, Xishanyao Formation, tight sandstone, diagenesis

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