松辽盆地砂岩中成岩次生矿物特征

杨桂芳; 卓胜广; 滕玉洪; 牛奔; 鄂俊杰

doi:10.11781/sysydz200206517

松辽盆地砂岩中成岩次生矿物特征

doi: 10.11781/sysydz200206517

1.
大庆石油学院秦皇岛分院, 河北秦皇岛 066000
2. 中海石油有限公司上海分公司, 上海 200030
3. 中国石油冀东油田, 河北唐山 063004

详细信息

作者简介:
杨桂芳(1964- ),女(汉族),山西长治人,工程师,主要从事石油地质方面的教学与研究工作.

中图分类号: TE122.2
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- 被引次数: 0
出版历程
- 收稿日期: 2002-04-15
- 修回日期: 2002-12-02
- 刊出日期: 2002-11-25

CHARACTERISTICS OF DIAGENETIC SECONDARY MINERALS IN THE SANDSTONE OF THE SONGLIAO BASIN

1.
Qinhuangdao Branch, Daqing Petroleum College, Qinhuangdao, Hebei 066000, China
2. Shanghai Branch, CNOOC, Shanghai 200030, China
3. Jidong Oil field, CNPC, Tangshan, Hebei 063004, China

摘要

摘要: 砂岩在成岩过程中,次生矿物多达20余种。次生石英、钠长石、方解石和浊沸石等的形成不同程度地影响了砂岩的储集物性。形成次生石英的SiO₂主要来源于碎屑长石的溶解粘土矿物的转化。次生长石与长石的钠长石化过程有关,斜长石钠长石化始于成岩早期,而钾长石的钠长石化则需较高的成岩条件才能进行。次生方解石主要为成岩早期的无机CaCO₃沉淀。浊沸石则是晚成岩阶段的稳定矿物,并与成岩晚期钠长石化有关。
- 钠长石化 /
- 次生长石 /
- 次生石英 /
- 成岩作用 /
- 湖相砂岩 /
- 白垩系 /
- 松辽盆地
Abstract: During the diagenetic process of sandstone,secondary minerals were up to more than 20 kinds.The formation of secondary quartz,albitite,calcite and laumontite affected the storage physical properties of sandstone in different degrees.The SiO₂ forming secondary quartz mainly came from the transformation of dissolved clay mineral in clastic feldspar.Secondary feldspar was related to the albitization process of feldspar,the albitization of plagioclase began at the early stage of diagenesis,and the albitization of K feldspar can only underway under higher diagenetic conditions.Secondary calcite was mainly inorganic CaCO₃ deposit in the early stage of diagenesis.Laumontite was stable mineral in the late diagenetic stage,and was related to the albitization in the late stage of diagenesis.
- albitization /
- secondary feldspar /
- secondary quartz /
- diagenesis lake-facies sandstone /
- Cretaceous /
- the Songliao Basin /

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参考文献(18)

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