东濮凹陷柳屯洼陷沙河街组三段上亚段盐间泥页岩储层特征

doi:10.7623/syxb201302011

石油学报 ›› 2013, Vol. 34 ›› Issue (2): 293-300.DOI: 10.7623/syxb201302011

东濮凹陷柳屯洼陷沙河街组三段上亚段盐间泥页岩储层特征

骆　杨 1,2　赵彦超 2　吕新华 3

1.中国地质大学研究生院湖北武汉 430074；2.中国地质大学构造与油气资源教育部重点实验室湖北武汉 430074；3.中国石油化工股份有限公司中原油田分公司河南濮阳 457001

收稿日期:2012-08-22 修回日期:2012-11-27 出版日期:2013-03-25 发布日期:2013-01-31
通讯作者: 赵彦超，男，1961年5月生，1982年毕业于武汉地质学院，现为中国地质大学（武汉）资源学院教授，主要从事油气测井地质分析及油藏描述教学与研究工作。
作者简介:骆杨，男，1985年9月生，2006年毕业于中国地质大学（武汉），现为中国地质大学（武汉）博士研究生，主要从事油藏描述研究。Email:luoyang0802@163.com

Characterization of the upper Es 3 inter-salt shale reservoir in Liutun sag, Dongpu depression

LUO Yang 1,2 　ZHAO Yanchao 2　 LÜ Xinhua 3

Received:2012-08-22 Revised:2012-11-27 Online:2013-03-25 Published:2013-01-31

摘要/Abstract

摘要：

结合盐间泥页岩油藏强超压和稠油的特点，以岩心描述、X射线衍射、扫描电镜、泥页岩孔隙度测试以及测井资料为手段，对东濮凹陷柳屯洼陷沙河街组三段上亚段（简称沙三上亚段）盐间泥页岩储层开展岩性、储集空间、物性以及储集类型研究，进而对盐间泥页岩储层进行综合分类评价。结果表明，盐间泥页岩储层岩性复杂，碎屑岩矿物、碳酸盐矿物和蒸发盐矿物组成了复杂盐韵律段;刚性矿物和有机碳含量高，有机质类型好，成熟度中偏低，强超压，构造缝和超压缝发育;有机质孔隙和与基质有关的孔隙较发育，为泥页岩主要储集空间;而裂缝与有机质孔隙结合提高了储层的渗透性。在此基础上，将沙三上亚段盐间泥页岩储层划分为4类。这一分类方案可为本区泥页岩油藏的进一步评价提供参考。

关键词: 泥页岩储层, 有机质孔隙, 分类评价, 柳屯洼陷, 盐间层段

Abstract:

Based on superpressure and heavy-oil characteristics of inter-salt shale reservoirs, the paper studied lithology, accumulation space, porosity, permeability and a variety of shale reservoirs by means of core description, X-diffraction analysis, SEM, measurements of porosity in lab and well logging data, and then made a classification and evaluation for inter-salt shale reservoirs in the upper part of the third member of the Shahejie Formation(Es₃). The result showed that inter-salt shale reservoirs have a complex lithology because they are complex salt rhythms which are composed of clastic, carbonate and evaporitic rocks. Rigid minerals and total organic carbon are high, and organic matter type is good, with medium-to-low maturity. the formation pressure is high overpressure. Structural fractures and overpressure fractures are developed ubiquitously within shale reservoirs. Organic pores and matrix-related pores are relatively well developed, providing shale rocks with main storage space. Combination of organic pores and fractures increases permeability of shale reservoirs. On the basis of studies above, the upper Es₃ inter-salt shale reservoirs can be divided into 4 types, providing an evaluation foundation for shale reservoirs in this area.

Key words: shale reservoir, organic pore; classification and evaluation; Liutun sag; inter-salt interval

骆　杨赵彦超吕新华. 东濮凹陷柳屯洼陷沙河街组三段上亚段盐间泥页岩储层特征[J]. 石油学报, 2013, 34(2): 293-300.

LUO Yang ZHAO Yanchao LU Xinhua . Characterization of the upper Es 3 inter-salt shale reservoir in Liutun sag, Dongpu depression[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(2): 293-300.

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东濮凹陷柳屯洼陷沙河街组三段上亚段盐间泥页岩储层特征

Characterization of the upper Es 3 inter-salt shale reservoir in Liutun sag, Dongpu depression

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