油气地质与采收率2025，Vol.32Issue(2)：114-121,8.DOI:10.13673/j.pgre.202312004
济阳坳陷页岩油水平井压裂后生产动态数值模拟研究
Numerical simulation for production dynamics of horizontal well after fracturing of shale oil in Jiyang Depression
摘要
Abstract
Jiyang shale oil is a terrestrial self-generated and self-accumulated reservoir with deep burial,low maturity,and high pressure coefficient.Artificial reconstruction spaces with complex flow mechanisms form after large-scale volumetric fracturing,and it isn't easy to obtain accurate physical properties of the reservoir in the stimulated spaces through conventional experiments,which presents new challenges to numerical simulation methods.In view of the unclear internal flow law of shale oil,the reservoir around the wellbore was regarded as a grey box system,and the numerical simulation model of the horizontal well of shale oil was established based on the understanding of physical property and fracturing effect of the reservoir from the previous exploration work.The production law of the horizontal well of shale oil in Jiyang Depression was studied to investigate the internal relationship between oil production and influencing factors.The reservoir around the horizontal well was divided into an artificial main fracture zone,micro-fracture reconstruction zone,and unstimulated matrix zone in the model.By considering fracturing fluid injection into the reservoir,the production dynamics of typical horizontal shale wells of shale oil were fitted,the physical properties of the reser-voir were deduced,and the final oil production was predicted.The influence law of the working system and fractures on develop-ment indexes were analyzed,and the method for determining the rational well spacing for well group development was further ex-plored,which provided support for the development and design optimization of shale oil in Jiyang Depression.关键词
页岩油/数值模拟/生产动态/合理井距/济阳坳陷Key words
shale oil/numerical simulation/production dynamics/rational well spacing/Jiyang Depression分类
能源科技引用本文复制引用
蔡鑫,杨勇,曹小朋,于金彪,孙红霞,胡慧芳,汪勇,郑乃元,郑文宽..济阳坳陷页岩油水平井压裂后生产动态数值模拟研究[J].油气地质与采收率,2025,32(2):114-121,8.基金项目
中国石化科技攻关项目"页岩油建模数模一体化技术研究"(P22036),东营市自然科学基金项目"咸水层CO2运移与封存机理研究"(2023ZR010). （P22036）
