四川盆地河包场须家河组碱性成岩作用

新疆石油地质 ›› 2011, Vol. 32 ›› Issue (5): 464-468.

四川盆地河包场须家河组碱性成岩作用

张胜斌^1a,1b, 刘震^1a,1b, 刘红俊², 宋亚辉², 李新民², 徐涛²

1.中国石油大学a.油气资源与探测国家重点实验室;b.地球科学学院,北京 102249;
2.中国石油大港油田分公司采油三厂,河北沧州 061023

收稿日期:2010-11-04 出版日期:2011-10-01 发布日期:2020-08-19
作者简介:张胜斌（1978-）,男,湖北黄冈人,在读博士研究生,石油地质,（Tel）15210879949（E-mail）zsb528@163.com.
基金资助:
国家973项目（2005CB422105）

Alkali Diagenesis of Xujiahe Sandstone in Hebaochang Block in Sichuan Basin

ZHANG Sheng-bin^1a,1b, LIU Zhen^1a,1b, LIU Hong-jun², SONG Ya-hui², LI Xin-min², XU Tao²

1. China University of Petroleum, a. State Key Laboratory of Petroleum Resources and Prospecting, China; b. Faculty of Geosciences, Beijing 102249, China;
2. No.3 Oil Production Plant, Dagang Oilfield Company, PetroChina, Cangzhou, Hebei 061023, China

Received:2010-11-04 Online:2011-10-01 Published:2020-08-19

摘要/Abstract

摘要： 四川盆地河包场须家河组首次发现了碱性成岩环境下典型的石英溶蚀现象和以石英溶蚀为典型特征的次生孔隙类型。通过镜下薄片鉴定、扫描电镜观察及X-衍射分析等方法,结合区域地质条件,对该地区碱性成岩作用特征及形成机理进行了深入研究。研究结果表明,须家河组砂岩经历了强烈的成岩作用,整体处于晚成岩B 期,成岩环境经历了从早期酸性向晚期碱性的转变,碱性成岩作用改造使须二段砂岩物性明显改善。

关键词: 四川盆地, 须家河组, 碱性成岩作用, 成岩环境, 石英溶蚀

Abstract: The typical quartz dissolution of alkali diagenesis of Xujiahe formation in Hebaochang block in Sichuan basin is firstly discovered, which forms secondary porosity characterized by such a quartz dissolution. Based on the analyses of thin section, scanning electron microscope, X-ray diffraction, combined with the regional geology conditions, the characteristics and formation mechanism of alkali diagenesis in this area are studied. The results show that the sandstone of Xujiahe formation undergoes strong diagenesis and enters into the stage of late diagenetic B, with transition from early acidity to late alkalinity. The alkali diagenesis reconstructs the sandstone of Xujiahe formation and allows its physical property to be much better.

Key words: Sichuan basin, Xujiahe formation, alkali diagenesis, diagenetic environment, quartz dissolution

中图分类号:

TE111.3

张胜斌, 刘震, 刘红俊, 宋亚辉, 李新民, 徐涛. 四川盆地河包场须家河组碱性成岩作用[J]. 新疆石油地质, 2011, 32(5): 464-468.

ZHANG Sheng-bin, LIU Zhen, LIU Hong-jun, SONG Ya-hui, LI Xin-min, XU Tao. Alkali Diagenesis of Xujiahe Sandstone in Hebaochang Block in Sichuan Basin[J]. Xinjiang Petroleum Geology, 2011, 32(5): 464-468.

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