新疆石油地质 ›› 2005, Vol. 26 ›› Issue (6): 656-658.

• 油气勘探 • 上一篇    下一篇

利用储集砂岩微观特征进行物源分析——以吐哈盆地鄯勒地区为例

李森明, 李蓬, 孙惠萍, 王天鹏, 陶宏洲, 倪联斌   

  1. 中国石油 吐哈油田分公司 勘探开发研究院,新疆 哈密 839009
  • 收稿日期:2005-02-25 出版日期:2005-12-01 发布日期:2020-11-23
  • 作者简介:李森明(1967-),男,甘肃张掖人,工程师,石油地质,(Tel)0902-2760600 (E-mail)lisenm@126.com.

Sour ce Analysis of Reservoir Sands in Microscopic Feature—An example of Shanle area in Tuha basin

LI Sen-ming, LI Peng, SUN Hui-ping, WANG Tian-peng, TAO Hong-zhou, NI Lian-bin   

  1. Research Institute of Exploration and Development, Tuha Oilfield Company, PetroChina, Hami, Xinjiang 839009, China
  • Received:2005-02-25 Online:2005-12-01 Published:2020-11-23

摘要: 岩石组构和重矿物微观特征分析认为,鄯勒地区 J2x1-2 砂岩储集层成分成熟度较好,为以英安岩岩屑、英安斑岩岩屑、中基性喷出岩岩屑、中基性凝灰岩岩屑等为主的岩石标型组合; 砂岩结构成熟度和分选性较差,石英碎屑的磨圆度呈棱角– 次棱角状; 砂岩中重矿物为不稳定的矿物标型组合,成岩环境为弱还原环境。结合宏观精细地层对比和沉积环境条件分析,明确了鄯勒地区 J2x1-2 砂岩储集层属于北物源沉积体系,指出了在前陆盆地进行物源分析时必须与微观特征、环境条件等多方面研究相结合。这种分析方法为今后同类物源分析提供了借鉴。

关键词: 吐哈盆地, 鄯勒地区, 标型矿物, 单矿物, 重矿物, 成岩环境, 储集层, 微观特征

Abstract: The petrologic make-up and the heavy mineral feature analyses show that J2x1-2 reservoir sands of Shanle area in Tuha basin are good in sand compositional maturity with a typical rock assemblage dominated by dacite, dacite liparite, intermediate-basic extrusive rock and intermediate-basic tuff debris, but poor in sand structural maturity and sorting with angular-subangular quartz clasts; the sand heavy minerals appear in an unstable typical mineral association, and the diagenetic environment is weak.Integrated with macro-and fine formation correlation and depositional setting analysis, it is clarified that the J2x1-2 reservoir sands belong to sedimentary system of the north sources.This paper suggests that the source analysis of foreland basin should be made considering micro-stratigraphic feature, environment conditions, etc., which could be as a guide for similar source supply studies in the future.

Key words: Tuha basin, Shanle area, typical mineral, single mineral, heavy mineral, diagenetic environment, reservoir rock, micro feature

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