新疆石油地质

新疆石油地质 ›› 2001, Vol. 22 ›› Issue (6): 493-495.

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石西地区侏罗系八道湾组低孔渗成因

况军1, 姚根顺2, 朱国华2, 王行信2   

  1. 1.中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依 834000;
    2.中国石油石油勘探开发科学研究院杭州石油地质研究所,浙江杭州 310023
  • 收稿日期:2001-09-06 出版日期:2001-12-01 发布日期:2020-10-30
  • 作者简介:况军（1964-）,男,山东胶洲人,高级工程师,石油地质。

The Origin of Low Porosity and Low Permeability in Badaowan Formation Reservoirs of Jurassic, Shixi Area of Junggar Basin

KUANG Jun, YAO Gen-shun, ZHU Guo-hua, WANG Xing-xin   

  • Received:2001-09-06 Online:2001-12-01 Published:2020-10-30
  • About author:KUANG Jun(1964-), Male, Senior Engineer, Petroleum Geology, Research Institute of Exploration and Development, Xinjiang Oilfield Company, CNPC, Karamay, Xinjiang 834000, China

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摘要： 通过对准噶尔 盆地石西地区侏罗系八道湾组碎屑岩储集层特征的系统分析,认为该储集层岩石具有成分成熟度低,结构成熟度较高的特点;成岩作用属渐进埋藏作用,表现为压实作用普遍较强,胶结作用程度弱,主要处于晚成岩的A1期;主要储集孔隙类型以残余粒间孔为主,颗粒溶孔次之。指出岩石中富含千枚岩等塑性岩屑及成岩压实作用较强是造成储集层低渗的主要原因。

关键词: 准噶尔盆地, 石西地区, 早侏罗世, 碎屑岩, 孔隙类型, 千枚岩

Abstract: A systematic analysis of clastic reservoir characteristics of Badaowan formation in Jurassic in Shixi area of Junggar basin was made. It showed that the reservoir rock is characterized by low composition maturity and high texture maturity; that the diagenesis belongs to progressive buried compaction that is extensively distributed, with weak cementation, which primarily occurred in stage A1 of late diagenesis; that main types of pores is dominated by residual intergranular space with partial grain solutional voids. It is believed that the important cause of low permeability of the reservoir is resulted from the serious diagenetic compaction and enriched plastic clastic as phyllite.

Key words: Junggar basin, Shixi area, Early Jurassic, clastic rock, pore type, phyllite

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