稠油自生溶剂强化SAGD实验与数值模拟研究

doi:10.11885/j.issn.1674-5086.2023.05.30.01

西南石油大学学报(自然科学版) ›› 2025, Vol. 47 ›› Issue (3): 101-111.DOI: 10.11885/j.issn.1674-5086.2023.05.30.01

稠油自生溶剂强化SAGD实验与数值模拟研究

程海清¹, 杨嗣民², 赵庆辉¹, 张勇¹, 苏磊¹

1. 中国石油辽河油田分公司勘探开发研究院, 辽宁盘锦 124010;
2. 西南石油大学石油与天然气工程学院, 四川成都 610500

收稿日期:2023-05-30 发布日期:2025-07-11
通讯作者: 杨嗣民，E-mail： yuyang971205@163.com
作者简介:程海清，1982年生，男，汉族，山东海阳人，高级工程师，硕士，主要从事稠油提高采收率方面的研究工作。E-mail：chenghaiqing@petrochina.com.cn
杨嗣民，1997年生，男，汉族，四川广元人，硕士，主要从事稠油热采方面的研究工作。E-mail：yuyang971205@163.com
赵庆辉，1973年生，男，汉族，甘肃兰州人，教授级高级工程师，博士，主要从事稠油提高采收率实验方面的研究工作。E-mail：zhaoqh6@petrochina.com.cn
张勇，1969年生，男，汉族，辽宁庄河人，高级工程师，主要从事稠油提高采收率实验方面的研究工作。E-mail：zhangyong1@petrochina.com.cn
苏磊，1983年生，男，汉族，辽宁鞍山人，高级工程师，硕士，主要从事稠油开发方面研究。E-mail:sulei311_lh@petrochina.com.cn
基金资助:
中国石油科技专项（2023ZZ23）

An Experimental and Numerical Study of In-situ Generated Solvent Assisted SAGD in Heavy Oil Reservoir

CHENG Haiqing¹, YANG Simin², ZHAO Qinghui¹, ZAHNG Yong¹, SU Lei¹

1. Research Institute of Exploration and Development, Liaohe Oilfield Company, PetroChina, Panjin, Liaoning 124010, China;
2. Petroleum Engineering School, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2023-05-30 Published:2025-07-11

摘要/Abstract

摘要： 针对稠油油藏注蒸汽中后期热效率低、蒸汽消耗量大等问题，提出了稠油原位催化裂解产生溶剂辅助注蒸汽开采技术。通过数值模拟和物理模拟相结合的方式，对该方法的可行性进行了研究。通过辽河杜84稠油的室内评价实验，研究了稠油催化裂解产生溶剂的机理，结合反应动力学理论建立了反应动力学模型，利用数值模拟方法研究了稠油原位产生溶剂强化的机理。结果表明，在注蒸汽环境下催化裂解可将超5%的稠油裂解为溶剂，其组成包括碳氢化合物轻烃和非凝结气体，具有作为SAGD汽腔中辅助重力泄油的溶剂介质特征，裂解产生的溶剂浓度也满足溶剂辅助SAGD(Expanding Solvent-SAGD，ES—SAGD)技术对溶剂的需求，且产生的轻烃组分和气体可在汽腔中循环利用，实现提高泄油效率和油汽比的效果。

关键词: 稠油, 原位改质, 水热裂解, 溶剂, 蒸汽辅助重力泄油, 数值模拟

Abstract: In order to solve the problems of low thermal efficiency and high steam consumption in the middle and late stages of steam injection in heavy oil reservoirs, this study proposes an in-situ generated solvent assisted steam assisted gravity drainage technique. This paper studies the feasibility of this new method through a combination of numerical simulation and physical simulation. By conducting experiments on Liaohe Du84 heavy oil, the mechanism of solvent generation during catalytic crac-king of heavy oil was studied. A reaction kinetics model was established based on reaction kinetics theory, and the mechanism of solvent enhanced SAGD in situ production of heavy oil was studied using numerical simulation methods. The research results indicate that over 5% of heavy oil is in-situ converted into solvents in a steam injection environment through catalytic cracking reaction. The solvent composition includes light hydrocarbons and non condensable gases, which have the characteristics of being a solvent medium for SAGD. The concentration also meets the solvent requirements of expanding solvent-SAGD technology. The generated light oil components and gases are recycled in the steam chamber as a solvent medium for gravity drainage, thus improve both recovery efficiency and oil steam ratio.

Key words: heavy oil, in-situ upgrading, aquathermolysis, solvent, SAGD, numerical simulation

中图分类号:

TE345

程海清, 杨嗣民, 赵庆辉, 张勇, 苏磊. 稠油自生溶剂强化SAGD实验与数值模拟研究[J]. 西南石油大学学报(自然科学版), 2025, 47(3): 101-111.

CHENG Haiqing, YANG Simin, ZHAO Qinghui, ZAHNG Yong, SU Lei. An Experimental and Numerical Study of In-situ Generated Solvent Assisted SAGD in Heavy Oil Reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(3): 101-111.

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稠油自生溶剂强化SAGD实验与数值模拟研究

An Experimental and Numerical Study of In-situ Generated Solvent Assisted SAGD in Heavy Oil Reservoir

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