马20区块水淹层测井解释方法研究

发布时间：2018-04-08 22:12

本文选题：水淹层　切入点：测井响应　出处：《东北石油大学》2015年硕士论文

【摘要】：随着越来越多的老油田注水开发区块进入高含水开采阶段,马20区块各储层受到了不同程度的水淹,部分储层水淹状况严重。油层水淹后,地下原油由于受注入水的长期驱替及开发方式的影响,造成水淹关系错综复杂,注入水改变了储层中油水分布的原始状态,其物性参数及岩性、含油性等参数都发生了一系列的变化,测井响应呈现了多样性,这给水淹层测井解释带来了极大的困难。针对这种现状,本文以马20区块水淹层为研究对象,深入研究储层特征及物性夹层的平面分布和纵向发育状况,以密闭取心检查井资料、岩心化验分析以及投产、试油等资料为基础,基于三维投影技术原理,根据储层的空间位置及水淹层测井资料响应特征,实现储层水淹状况的定性判断;进而找出适合该块的储层参数精细评价模型,运用泛函分析的数学方法将测井曲线标准化以及储层测井响应特征、物性下限等研究信息,并应用相应的解释处理程序,进行储层参数求取,对马20区块进行二次精细解释,从而实现对马20区块“先定性,后定量”的水淹层测井解释。研究结果表明,本套解释方法能够提高水淹层解释精度,实现水淹层的定量解释。
[Abstract]:With more and more old oilfield water injection development blocks entering the stage of high water cut, each reservoir in Ma 20 block has been flooded to varying degrees, and some reservoirs have been flooded seriously.After reservoir flooding, the underground crude oil is affected by the long-term displacement and development mode of injected water, resulting in a complicated relationship between flooding and flooding. The injected water changes the original state of oil-water distribution in the reservoir, its physical parameters and lithology.A series of changes have taken place in oiliness and other parameters, and the logging response presents diversity, which brings great difficulties to the interpretation of water-flooded reservoir logging.In view of this situation, this paper takes the water-flooded zone of Ma 20 block as the research object, deeply studies the plane distribution and longitudinal development of reservoir characteristics and physical intercalation, and uses closed coring inspection well data, core analysis and production.Based on the data of oil testing and 3D projection technology, according to the spatial location of reservoir and the response characteristics of logging data of water-flooded formation, the qualitative judgment of reservoir water-flooded condition is realized, and the fine evaluation model of reservoir parameters suitable for this block is found out.By using the mathematical method of functional analysis, the log curves are standardized and the reservoir logging response characteristics, physical property lower limit and other research information are studied, and the reservoir parameters are obtained by using the corresponding interpretation processing program, and the secondary fine interpretation of Ma 20 block is carried out.Thus, the logging interpretation of water flooded zone in Ma 20 block is realized, which is qualitative first, then quantitative.The results show that this method can improve the interpretation accuracy and realize the quantitative interpretation of the water-flooded layer.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.81;TE357.6

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