ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
张文伟. 2019: 细粒沉积岩储层微观特征研究方法及应用——以大民屯凹陷安福屯地区S352井为例. 石油地质与工程, 33(04): 11-15.
引用本文: 张文伟. 2019: 细粒沉积岩储层微观特征研究方法及应用——以大民屯凹陷安福屯地区S352井为例. 石油地质与工程, 33(04): 11-15.
ZHANG Wenweio. 2019: Microcosmic characteristics of fine-grained sedimentary reservoirs and its application——By taking S352 well in Anfutun area of Damintun sag as an example. Petroleum Geology and Engineering, 33(04): 11-15.
Citation: ZHANG Wenweio. 2019: Microcosmic characteristics of fine-grained sedimentary reservoirs and its application——By taking S352 well in Anfutun area of Damintun sag as an example. Petroleum Geology and Engineering, 33(04): 11-15.

细粒沉积岩储层微观特征研究方法及应用——以大民屯凹陷安福屯地区S352井为例

Microcosmic characteristics of fine-grained sedimentary reservoirs and its application——By taking S352 well in Anfutun area of Damintun sag as an example

  • 摘要: 利用岩心观察、岩石薄片鉴定、X衍射全岩分析、铸体图像、扫描电镜、压汞与气体吸附、非常规物性分析等方法对大民屯凹陷安福屯地区S352井进行综合研究。结果表明,S352井沙四段细粒沉积岩主要以含碳酸盐油页岩为主,夹云质泥岩、泥质泥晶云岩;储集空间类型为晶间孔、溶孔、有机质孔,构造缝、成岩缝等;孔隙直径多数小于50 nm;孔隙度主要为5.0%~9.0%,渗透率多数小于1.000×10–3μm 2,为低孔、特低渗储层;优势岩性系列由好变差依次为:含碳酸盐油页岩、泥质泥晶云岩、云质泥岩。该套研究方法对细粒沉积岩储层的研究成果,对后期的勘探开发具有积极的参考意义。

     

    Abstract: The S352 well in Anfutun area of Damintun sag was comprehensively studied by using core observation, thin section identification, X-ray diffraction whole rock analysis, casting image, scanning electron microscopy, mercury injection and gas adsorption, unconventional physical property analysis and so on. The results show that the fine-grained sedimentary rocks in the fourth member of Shajiahe formation in S352 well are mainly composed of carbonate oil shale, sandwiched mudstone and argillaceous micritic cloud rocks. The reservoir space types are intercrystalline pores, dissolved pores, organic matter pores, structural fractures and rock-forming fractures, etc. The pore diameter is mostly less than 50 nm, the porosity is mainly 5.0% ~ 9.0%,and the permeability is mostly less than 1.000×10~(-3) μm ~2, which belongs to low porosity, ultra-low permeability reservoir. The dominant lithology series are successively from good to bad: carbonate-bearing oil shale, argillaceous micritic cloud rock, and cloudy mudstone. The research methods have positive reference significance for the research results of fine-grained sedimentary reservoirs and later exploration and development.

     

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