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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。
The exploration of the northern slope of Beidagang in Dagang Oilfield shows that the second member of Es2 in the area is enriched with oil and gas and is the main oil-bearing section in the area. However, the complicated tectonic characteristics and the concealment of reservoirs and oil-gas distribution have long restricted the expansion of potential for oil and gas and the increase of reserves and production. For this reason, the combination of lithology, electrical property and seismic characteristics is combined with the technique of “three-phase ” to carry out reservoir prediction from point to surface and from known area to unknown area and achieve good application effect , Determined the distribution range of favorable reservoirs and provided the necessary geological basis for the exploration of lithologic reservoirs in this area.