中国石油大学学报（自然科学版）2025，Vol.49Issue(2)：231-239,9.DOI:10.3969/j.issn.1673-5005.2025.02.023
海上稠油油藏均热条件层段划分及配注方法
Zone division and injection method in soaking condition of offshore heavy oil reservoir
摘要
Abstract
Due to the non-uniform characteristics of heavy oil reservoir in the offshore oilfield,conventional injection methods suffer from issues such as uneven heat transfer and gas migration during reservoir heating,leading to the reduced heating effi-ciency.To achieve the uniform injection and heating of the reservoir,a rational model for calculating segment-specific injec-tion volumes needs to be proposed.Employing fundamental principles of fuzzy mathematics,five most influential key parame-ters related to permeability and porosity in reservoir properties were identified.Subsequently a model was established for cal-culating segment-specific injection volumes based on these key parameters'influence degrees on the reservoir.Simultaneous-ly,the formula were solved for determining injection proportions among segments to ensure the uniform reservoir heating.Building upon this foundation,a novel segmentation method being the proportion derivative discrimination method was intro-duced aiming at predicting the optimal division of injection layer segments during the actual production.The results demon-strate that the proposed injection volume calculation model and segmentation method yield 20%higher productivity than con-ventional vague methods while also delivers superior heating effects.By leveraging reservoir properties to design injection schemes,the approach presents a new avenue for achieving uniform heating of heavy oil reservoirs in offshore fields.Future research could further develop dynamic optimization models based on this work and expand their applicability through addi-tional verification.关键词
海上油田/稠油热采/配注量计算/均匀加热/层段划分Key words
offshore oilfield/heavy oil thermal recovery/injection rate calculation/uniform heating/layer segmentation分类
能源科技引用本文复制引用
张伟,周法元,林珊珊,王弘宇,王庆涛,张建亮,王新伟,董琪伟..海上稠油油藏均热条件层段划分及配注方法[J].中国石油大学学报（自然科学版）,2025,49(2):231-239,9.基金项目
国家自然科学基金面上项目(51874333) （51874333）
