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
熊歆睿, 王洪辉, 周波, 宋俊玲, 张兴. 2011: 古城油田B区核三段主力油层储层特征研究. 石油地质与工程, 25(06): 9-11+5.
引用本文: 熊歆睿, 王洪辉, 周波, 宋俊玲, 张兴. 2011: 古城油田B区核三段主力油层储层特征研究. 石油地质与工程, 25(06): 9-11+5.
2011: Reservoir characteristics of the major oil bed of third member of Hetaoyuan formation in B area of Gucheng oilfiled. Petroleum Geology and Engineering, 25(06): 9-11+5.
Citation: 2011: Reservoir characteristics of the major oil bed of third member of Hetaoyuan formation in B area of Gucheng oilfiled. Petroleum Geology and Engineering, 25(06): 9-11+5.

古城油田B区核三段主力油层储层特征研究

Reservoir characteristics of the major oil bed of third member of Hetaoyuan formation in B area of Gucheng oilfiled

  • 摘要: 利用岩心观测、铸体薄片、扫描电镜、物性分析、压汞分析等方法,对古城油田B区构造沉积特征、岩石学特征、储层特征、孔隙结构等进行了深入研究。结果表明,B区目的层段储集岩石类型主要为长石砂岩;沉积微相包括水下分流河道,河口坝,席状砂等多种微相,属扇三角洲前缘沉积;储集空间主要是原生粒间孔隙和次生溶蚀孔隙,以粗孔喉占主导。研究区孔隙度与渗透率具有较好的正相关性。影响储层性能的因素主要有沉积物成分、沉积微相、压实作用和溶蚀作用等。

     

    Abstract: The sedimentary and structure characteristics, lithology characteristics, reservoir characteristics, pore texture and pore types of the reservoir of B area of Gucheng oilfield have been studied through analyzing the core, thin sections with the method of scanning electron microscope and mercury intrusion method etc. The result indicates the sandstones mainly consist of arkoses. The multiple sedimentary microfacies includes:underwater distributaries channel,river mouth bar, sand sheet etc, belonging to the fan delta. The pore types include residual inter-particle pores, and secondary dissolution pore, most are rough pore throat. Between porosity and permeability of the investigated area, there are good positive correlations. The physical properties of the reservoirs are controlled by sedimentary microfacies, sedimentary composition, compaction, corrosion etc.

     

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