摘要:
从区域地质背景出发,结合岩心、测井等资料,通过岩相类型、粒度分析、测井相分析等对沉积相标志进行了综合研究。认为该区主要发育浅水辫状河三角洲沉积,其中,分流河道、心滩、分流河道间、水下分流河道、分支间湾、前缘席状砂、河口坝等7种微相较为发育。对不同的沉积微相特征进行了分析,并建立了该区沉积相模式,为油藏的勘探开发提供了重要的地质依据。
Abstract:
Various facies marks, such as facies types, grain size distribution patterns, electrofacies, and regional geological settings, have been carefully studied for the Hongnan 9 Block of the Honglian Oilfield. The results show that this area was once occupied by a shallow braided deltaic system, consisting of distributary channels, channel bars, interchannel bars, subaqueous distributary channels,branched bars, sheet sands, and mouth bars. A sedimentary model was established for the Block upon the studies mentioned above. The model could be used as an important tool for reservoir exploration and development.
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