沉积成因约束的辫状河三角洲泥质夹层表征

发布时间：2018-03-21 20:55

本文选题：三角洲　切入点：泥质夹层　出处：《西南石油大学学报(自然科学版)》2017年05期 　论文类型：期刊论文

【摘要】：由于缺少岩芯、动态资料不完善,海上稀井网油田精细表征储层和泥质夹层分布规律难度较大。为尝试解决这个问题,将珠江口盆地X油田珠江组海相砂岩储集层作为研究对象,以高质量地震资料和测井资料为基础,并借鉴陆上相同沉积环境的露头研究成果,分析泥质夹层的响应特征。结果表明,研究区辫状河三角洲泥质夹层有小规模海泛成因、堤岸成因及前积成因等3种类型。为满足生产需求,可将夹层划分为3个级次。在级次划分方案的基础上,以地震属性资料作为约束沉积相展布研究的基础,通过剖-平联动,确定了不同级次、不同成因夹层的空间分布特征。利用确定性建模和随机建模相结合的手段,表征和预测了不同成因夹层的空间分布特征。
[Abstract]:Due to the lack of core and imperfect dynamic data, it is difficult to characterize the reservoir and the distribution of muddy intercalation in the offshore sparse well pattern oil fields. In order to try to solve this problem, Taking the marine sandstone reservoir of Zhujiang formation in Zhujiang formation of Zhujiang Oilfield in Pearl River mouth Basin as the research object, based on the high quality seismic data and logging data, and drawing lessons from the outcrop research results of the same sedimentary environment on land, The response characteristics of muddy intercalation are analyzed. The results show that there are three types of muddy intercalation in braided river delta, I. e. The intercalation can be divided into three stages. On the basis of the classification scheme, the seismic attribute data is used as the basis for the study of the distribution of constrained sedimentary facies. By combining deterministic modeling with stochastic modeling, the spatial distribution characteristics of different genetic interlayers are represented and predicted.
【作者单位】：中海油研究总院;
【基金】：国家科技重大专项(2016ZX05031-003)
【分类号】：P618.13

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