油气储层污染带测井识别与评价

发布时间：2018-04-10 20:20

本文选题：常规测井 + 储层损害　；参考：《中国石油大学(华东)》2015年硕士论文

【摘要】：储层损害问题存在于油气田勘探与开发的全部过程之中,其容易导致储层产能下降,给油田带来直接的经济损失,因此油气层的保护工作越来越受到重视。储层损害的形式以及原因是复杂多变的,不同的油田之间,甚至同一区块的不同井之间的伤害都可能存在很大的不同。在油田开发中,为了能够获得更高的经济效益,应该制定出严格有效的油层保护措施以及补救方法,深入学习出现的油层伤害问题,为后续钻井的实施提供理论和实践上的指导思想。本文利用常规测井资料结合部分录井、试井资料对泥浆侵入机理进行分析,建立了储层敏感性预测模型,并应用泥浆侵入深度、渗透率损害比、表皮系数三个参数对储层损害程度进行了评价。本文利用东营地区测井、录井、试井资料以及岩心分析资料对储层敏感性进行了评价,建立了储层敏感性评价模型,并对实际井进行预测,取得了良好的评价效果。再以实验分析资料为基础,结合常规测井方法基本原理,通过研究泥浆侵入地层引起的测井响应变化,总结储层损害的测井响应特征,应用回归分析以及神经网络等数学方法,建立了利用泥浆侵入深度、渗透率损害比、表皮系数评价油气储层损害程度的模型。利用常规测井资料评价钻井泥浆对油气层的损害程度,可降低试井成本,这在以经济效益为中心的油田开发中具有重要的意义。
[Abstract]:The problem of reservoir damage exists in the whole process of exploration and development of oil and gas field, which can easily lead to the decrease of reservoir productivity and bring direct economic loss to the oil field. Therefore, more and more attention has been paid to the protection of oil and gas reservoir.The forms and causes of reservoir damage are complex and changeable, and the damage of different oil fields, or even different wells in the same block, may be very different.In order to obtain higher economic benefits in oil field development, strict and effective reservoir protection measures and remediation methods should be worked out, and reservoir damage problems should be studied in depth.To provide theoretical and practical guidelines for the implementation of subsequent drilling.In this paper, the mud invasion mechanism is analyzed with conventional logging data combined with part of logging data, and the prediction model of reservoir sensitivity is established, and the mud invasion depth and permeability damage ratio are used.Three parameters of epidermal coefficient are used to evaluate the damage degree of reservoir.In this paper, the reservoir sensitivity is evaluated by using logging, logging, well test data and core analysis data in Dongying area. A reservoir sensitivity evaluation model is established, and the actual wells are predicted, and good evaluation results are obtained.Based on the experimental analysis data and the basic principles of conventional logging methods, the logging response characteristics of reservoir damage are summarized by studying the logging response changes caused by mud intrusion, and the mathematical methods such as regression analysis and neural network are applied.A model is established to evaluate the damage degree of oil and gas reservoir by mud invasion depth, permeability damage ratio and skin coefficient.Using conventional logging data to evaluate the damage degree of drilling mud to oil and gas reservoir can reduce well test cost, which is of great significance in oilfield development with economic benefits as the center.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE258;P631.81

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