济阳坳陷古近系沙河街组震积岩特征及其储集性能

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (1): 44-47.

济阳坳陷古近系沙河街组震积岩特征及其储集性能

宫丽清¹, 杨剑萍²

1.中国石化胜利油田有限责任公司地质科学研究院, 山东东营 257000;
2.中国石油大学地球资源与信息学院, 山东东营 257061

收稿日期:2006-04-20 修回日期:2006-09-01 出版日期:2007-02-01 发布日期:2020-07-29
作者简介:宫丽清(1965-), 女, 山东邹平人, 工程师, 油田开发规划,(Tel)0546-8715277
基金资助:
国家“十五”科技攻关项目, 济阳坳陷古近系沉积体系与油气运聚机理研究(2001BA605A09)资助

Seismite Feature and Its Reservoir Quality of Shahejie Formation of Paleogene in Jiyang Depression

GONG Li-qing¹, YANG Jian-ping²

1. Research Institute of Geosciences, Shengli Oilfield Company Ltd., Sinopec, Dongying, Shandong 257015, China;
2. Institute of Earth Resources and Information, China University of Petroleum, Dongying, Shandong 257061, China

Received:2006-04-20 Revised:2006-09-01 Online:2007-02-01 Published:2020-07-29

摘要/Abstract

摘要： 通过大量岩心、薄片和成像测井资料分析,在济阳坳陷古近系沙河街组沙四段上部和沙三段地层中识别出震积岩。震积岩的主要标志是发育各种类型的软沉积变形构造,包括液化砂、泥岩脉、液化卷曲变形构造、阶梯状微断层、震积砂枕构造及震积砂球构造、串珠状构造、碳酸盐泥晶脉、自碎角砾状构造及假结核等。震积岩主要发育在古近系沙三段和沙四段上部,表明沙四段-沙三段沉积时期是控盆边界断裂强烈活动的时期。尽管地震作用没有使储集层孔隙度大幅度增加,但能够极大地改善储集层渗透性。震积岩特别是震裂岩和震碎角砾岩是一种潜在的油气储集层。

关键词: 济阳坳陷, 古近系, 震积岩, 特征

Abstract: Based on core observation, thin section and imaging logging analyses, seismite is recognized in the upper part of Member 4 and Member 3 of Shahejie formation of Paleogene in Jiyang depression. Such a rock features soft sediment deformation structures, including liquefied sand and shale veins, liquefied convolute lamination, step microfault, pillow and ball structures, beaded structure, carbonate micrite vein, autoclastic brecciated structure and pseudonodule, etc. Study shows that sedimentary period of Member 4-Member 3 of Shahejie formation is the intense activity period of the basin boundary fault. The obvious effect of seismism on hydrocarbon reservoir quality greatly improves the reservoir permeability whereas the improved porosity is seldom found. It is concluded that Seismite, especially the shattered rock and seismic-clastic breccia are as potential reservoir rocks. This provides new areas for petroleum exploration and development in the near future here.

Key words: Jiyang depression, Paleogene, seismite, feature

中图分类号:

TE112.221

宫丽清, 杨剑萍. 济阳坳陷古近系沙河街组震积岩特征及其储集性能[J]. 新疆石油地质, 2007, 28(1): 44-47.

GONG Li-qing, YANG Jian-ping. Seismite Feature and Its Reservoir Quality of Shahejie Formation of Paleogene in Jiyang Depression[J]. Xinjiang Petroleum Geology, 2007, 28(1): 44-47.

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