西南石油大学学报(自然科学版) ›› 2006, Vol. 28 ›› Issue (2): 11-15.DOI: 10.3863/j.issn.1000-2634.2006.02.004

• 地质勘探 • 上一篇    下一篇

川中一川南过渡带嘉二段成岩作用及其储层发育

周跃宗1 雷卞军1 赵永刚1 周晓东2 周慧成1
  

  1. (1.西南石油大学资源与环境学院,四川 成都 610500;2.四川石油管理局地球物理勘探公司)
  • 收稿日期:2005-12-23 修回日期:1900-01-01 出版日期:2006-04-20 发布日期:2006-04-20
  • 通讯作者: 周跃宗

DIAGENFSIS IN THE 2-SECTION OF JIALING.nANG OF THE TRANSITIIONED ZONE BETWEEN THE CENTER PART AND THE SOUTHERN PART OF SICHUAN BASINAND ITS EFFECT TO RESERVOIR DEVELOPMENT

ZHOU Yue-zong1 LEI Bian-jun1 ZHAO Yong-gang1 et al

  

  1. ( Southwest Petroleum University,Cheng-du Sichuan 610500, China)
  • Received:2005-12-23 Revised:1900-01-01 Online:2006-04-20 Published:2006-04-20
  • Contact: ZHOU Yue-zong

摘要: 研究区嘉二段发育白云岩、青岩、石灰岩夹少量泥岩,属于局限台地和蒸发台地相。砂屑白云岩、细拉白云岩、粉晶白云岩、粉一细晶白云岩、鲡粒灰岩和砂屑灰岩尹:有储集意义。嘉二段经历了海底成岩环境、潮上蒸发成岩环境、大气水混合成岩环境、浅一中深埋藏和深埋藏成岩环境。早期大气淡水淋滤、近地表(蒸发泵和回流渗透)白云石化、埋藏期与有机质演化有关的溶蚀作用是主要的储层建设性成岩作用,构造破裂作用使储层的渗透性得到了改善;压实、压溶、两期石膏胶结作用及粒状方解石胶结作用是储层破坏性成岩作用。针时嘉二段的颖粒破酸盐岩和非颗粒碳酸盐岩,确立了6种成岩序列及孔隙演化模式。

关键词: 成岩作用, 成岩环境, 孔隙演化, 嘉陵江组二段

Abstract: The 2-section of Jialingjiang project belongs to strict and evaporated platform facies. Its main lithology is dolomite, gypsepus rock, limestone and a spot of pulpy rock. Arenite dolomite,politic dolomite, silty dolomite, silty-fine dolomite, politic lime-stone and arenite are of reservoir signification. The 2-section ofJiaLingjiang project has developed from seabed diagenesis,evaporated diagenesis, mixed water diagenesis, shallow-water,middle-water diagenesis environment and deep-water diagenesisenvironment. Early fresh-water leaching, near-surface(evaporating bump and refluent penetration)dolomitization, corrosion which is related to organic evolvement are the main member constructed diagenesis. The tectonic fracture has made its permea-
bility better. Besides, the compaction, pressolution,twice gypsum cementation are the 2-section of Jialingjiang project's main destructed diagenesis. The 2-section of Jialingjiang project has two types of studded carbonate rock and non-studded carbonate rock, which have 6 kind of lithology. This paper has created their diagenesis serial and the pore evolving mode.

Key words: diagenesis environment, pore evolution, section Ⅱof Jialingjiang Formation

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