基于Logistic回归的高邮凹陷永安地区戴一段含油气性量化评价

发布时间：2018-05-07 16:59

本文选题：含油气性 + Logistic回归　；参考：《中国石油大学学报(自然科学版)》2017年05期

【摘要】：开展含油气性定量评价成为有效推动高邮凹陷永安地区戴一段油气勘探的重要工作之一。根据已有勘探成果对含油气性评价单元进行细分并筛选出主要含油气性评价指标,利用Logistic回归方法拟合油气分布与评价指标之间的关系建立研究区含油气性定量评价模型;应用该模型对永安地区戴一段含油气性进行多层次的系统量化表征,并结合油气地质认识提供下一步的勘探建议。结果表明:所建立的含油气回归模型总体准确率为89%,具有较高的可靠性;研究区深部地区的勘探潜力值得探索,是未来拓展勘探的有利区域;基于Logistic回归的含油气性量化评价方法所受客观限制小、适应性较强,能够直接计算得到含油气概率值,并可以方便地刻画含油气性特征以指导油气勘探。
[Abstract]:Quantitative evaluation of oil and gas content has become one of the important work in promoting oil and gas exploration in Yongan area of Gaoyou depression. According to the existing exploration results, the oil and gas bearing evaluation units are subdivided and the main evaluation indexes are screened. The quantitative evaluation model of oil and gas content in the study area is established by using Logistic regression method to fit the relationship between the distribution of oil and gas and the evaluation index. The model is used to quantify the oil and gas content of Dayi formation in Yongan area, and to provide further exploration suggestions based on the understanding of oil and gas geology. The results show that the overall accuracy of the established regression model is 89, with high reliability, the exploration potential in the deep area of the study area is worth exploring, and it is a favorable area to expand exploration in the future. The quantitative evaluation method of oil-bearing and gas-bearing property based on Logistic regression is subject to small objective limitation and strong adaptability. It can directly calculate the probability value of oil and gas, and can conveniently depict the characteristics of oil and gas bearing to guide oil and gas exploration.
【作者单位】：中国石油大学地球科学与技术学院;中国石化中原油田分公司勘探开发研究院;中海石油(中国)有限公司上海分公司;中海油田服务股份有限公司;中国石化江苏油田分公司试采一厂;
【基金】：国家科技重大专项(2017ZX05009-001)
【分类号】：P618.13

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