渤海湾盆地秦皇岛32-6油田曲流河沉积体系综合解剖

发布时间：2018-03-14 21:26

本文选题：渤海湾盆地　切入点：秦皇岛-油田　出处：《新疆石油地质》2017年05期 　论文类型：期刊论文

【摘要】：由于曲流河横向摆动大,使河道沉积在空间上错列叠置,沉积体系内没有等时面和稳定的标准层,给砂体追踪造成很大困难。采用地震测井联合反演技术,提高了点坝砂体的分辨率。在建立岩相、测井相和地震相基础上,充分利用岩心的直观性、测井纵向分辨率高和地震横向连续性好的特点,提高了纵向上不同期次河道单元的划分和横向对比的准确性。把砂体厚度等值线、测井相和地震波阻抗沿层切片叠置,准确识别出了废弃河道、点坝、泛滥平原和决口扇。根据国内外现代曲流河和露头资料的统计分析,建立了点坝几何参数之间的相互关系,提出了点坝侧积体、侧积面和侧积层的确定方法与内部构型的研究方法,为建立准确的地质模型提供了可靠的约束条件。
[Abstract]:Due to the large lateral wobble of meandering rivers, the channel deposits are stacked in space and there is no isochronous plane and stable standard layer in the sedimentary system, which makes it very difficult to trace sand body. The combined inversion technique of seismic logging is used. Based on the establishment of lithofacies, logging facies and seismic facies, the features of high vertical resolution of logging and good seismic lateral continuity are fully utilized by making full use of the directness of the core. The accuracy of division and horizontal correlation of longitudinal channel units at different stages is improved. The sand body thickness isoline, logging facies and seismic wave impedance are overlapped along the layers to identify the abandoned river channels and point dams accurately. Flood plain and crevasse fan. Based on the statistical analysis of modern meandering river and outcrop data at home and abroad, the relationship between geometric parameters of point dam is established, and the side accumulation body of point dam is proposed. The method of determining the lateral surface and the lateral layer and the research method of the internal configuration provide a reliable constraint condition for the establishment of accurate geological model.
【作者单位】：燕山大学车辆与能源学院;中海石油(中国)有限公司天津分公司渤海石油研究院;
【基金】：国家科技重大专项(2011ZX05038-001) 河北省自然科学基金(D2016203253)
【分类号】：P618.13

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