大庆石油地质与开发2025，Vol.44Issue(4)：1-11,11.DOI:10.19597/J.ISSN.1000-3754.202401028
基于智能层序划分地层格架约束下的惠民凹陷基山砂体展布特征
Characteristics of Jishan sandbody extension in Huimin Sag based on constraint of intelligent sequence stratigraphic framework division
摘要
Abstract
Aiming at correlation challenge of Jishan sandbody in Huimin Sag caused by vertical multi-stages super-imposition and rapid lateral variation,division and correlation of sequence strata in Jishan sandbody of Es3 m sub-member in Huimin Sag are performed by combining multi-population genetic algorithm(MPGA)and dynamic time warping algorithm(DTW),and intelligent division results are validated with several conventional analytical meth-ods.Sedimentary facies of Jishan sandbody and extension characteristics of facies-controlled sandbody are further analyzed constrained by high-frequency sequence.The results show that Jishan sandbody is divided into 7 fourth-or-der sequences(Psq1-Psq7)and 21 fifth-order sequences,with significant thickness variation and prominent lateral migration characteristics.This area generally presents a sedimentary sequence composed of delta front to pro-delta and then turbidite sedimentary system.Laterally,Jishan sandbody shows much segmentation in north-central-south direction,influencing its vertical superimposition relationship.This segmentation is mainly controlled by multi-channels development pattern in delta,lobes orientation and thickening zones from front to distal end.Areal distri-bution of Jishan sandbody shows superimposed and contiguous pattern that gradually strengthens from west to east.Long eastward advancement distance of the main front channel makes distal turbidite sandbodies more developed.The research clarifies sandbody distribution laws in Huimin Sag in high-frequency sequence framework,providing basis for further analysis of spatial extension characteristics of oil and gas bearing intervals of Jishan sandbody.关键词
层序地层/惠民凹陷/基山砂体/多种群遗传算法(MPGA)/动态时间归整算法(DTW)Key words
sequence strata/Huimin Sag/Jishan sandbody/multi-population genetic algorithm(MPGA)/dynamic time warping algorithm(DTW)分类
能源科技引用本文复制引用
张鹏飞,刘天娇,赵兰全,常象春,隋青林,赵洪康..基于智能层序划分地层格架约束下的惠民凹陷基山砂体展布特征[J].大庆石油地质与开发,2025,44(4):1-11,11.基金项目
国家自然科学基金项目"多成因要素叠加下的储层固体沥青分子地球化学判识及形成机制"(42372160) （42372160）
胜利油田勘探开发研究院科技外协项目"惠民凹陷基山砂体成因类型及分布规律研究"(30200018-23-ZC0613-0004). （30200018-23-ZC0613-0004）
