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大情字井高台子油层处于有利富油凹陷内,具有剩余资源量大、勘探程度高、油层丰度低、油藏隐蔽性强的特点。大情字井高台子外前缘以青一段Ⅲ砂组为主,油气显示丰富,以岩性油藏为主,具备亿吨级的储量规模。但是外前缘储层较薄,均质性差,在一定程度上制约了研究认识和勘探部署。为近一步探索外前缘有效储层和油藏分布范围,以及油藏主控和富集规律,利用地震技术开展有效储层预测、裂缝预测、烃检测三方面的工作,对外前缘青一段Ⅲ砂组外前缘高台子油层进行精细分析,结合老井复查,对甜点分布范围进行分区划带,为老井重新试油以及探井井位部署提供有利论证条件。
The Gaotai Well Gaotaizi oil well is located in a favorable oil-rich depression, which has the characteristics of large residual resource, high exploration degree, low oil abundance and concealed reservoir. The outer front of Gaotai Well Jingtai Subtropical Zone is dominated by the Qinglian III sand group, with abundant oil and gas, mainly lithologic reservoirs, and reserves of 100 million tons. However, the outer frontal reservoir is thin and has poor homogeneity, restricting research understanding and exploration deployment to a certain extent. In order to further explore the effective distribution of outer reservoirs and reservoirs, as well as the dominant and enrichment laws of reservoirs and the effective application of seismic techniques in reservoir prediction, fracture prediction and hydrocarbon detection, Ⅲ sand group of the outer margin of the Gaotaizi oil layer fine analysis, combined with the review of the old wells, the distribution of the dessert zone zoned for the old well re-oil well exploration wells to provide favorable argument conditions.