北大港北坡“三相”结合预测沙二段储层
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摘要
大港油田北大港北坡地区勘探表明,该区沙二段富集油气,为区域主要含油层段。但复杂的构造特征和储层与油气分布的隐蔽性长期制约了油气扩边挖潜与增储上产工作。为此,采用"三相"结合技术,将岩性、电性、地震特征相结合,从点到面、从已知区到未知区,展开储层预测工作,取得了较好应用效果,确定了有利储层分布范围,为该区岩性油气藏勘探提供了必要的地质依据。
Exploration for the north slope of Beidagang in Dagang Oilfield has found rich oil and gas in Es2 where is the major oil-bearing formation in this region. However,complex structure and subtle distribution of oil and gas had restricted reservoir extension for a long time. Therefore,a combination of core,logging and seismic facies has been adopted to predict reservoirs from point to area and from known to unknown zones. The distribution of favorable reservoirs is delineated. This study provides necessary geological basis for exploration of lithological reservoirs in this region.
引文
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