稠油油藏热溶剂辅助重力泄油开采机理及参数优化

doi:10.3969/j.issn.1006-6535.2024.01.009

特种油气藏 ›› 2024, Vol. 31 ›› Issue (1): 74-80.DOI: 10.3969/j.issn.1006-6535.2024.01.009

稠油油藏热溶剂辅助重力泄油开采机理及参数优化

李松岩^1,2, 程浩^1,2, 韩瑞³, 魏耀辉^1,2, 李明鹤^1,2, 冯世博^1,2

1.中国石油大学(华东)非常规油气开发教育部重点实验室,山东青岛 266580;
2.中国石油大学(华东),山东青岛 266580;
3.中海油田服务股份有限公司,天津 300459

收稿日期:2023-04-25 修回日期:2023-12-25 出版日期:2024-02-25 发布日期:2024-04-18
作者简介:李松岩(1980—),男,教授,博士生导师,2003年毕业于石油大学(华东)能源与动力工程专业,2009年毕业于中国石油大学(华东)油气田开发工程专业,获博士学位,现主要从事稠油开采及注气增产等方面的教学与科研工作。
基金资助:
国家自然基金企业创新发展联合基金项目“难采稠油多元热复合高效开发机理与关键技术基础研究”(U20B6003)

Mechanism and Parameter Optimization of Thermal Solvent-Assisted Gravity Drainage Oil Recovery in Heavy Oil Reservoirs

Li Songyan^1,2, Cheng Hao^1,2, Han Rui³, Wei Yaohui^1,2, Li Minghe^1,2, Feng Shibo^1,2

1. Key Laboratory of Unconventional Oil and Gas Development, China University of Petroleum (East China), Qingdao, Shandong 266580, China;
2. China University of Petroleum (East China), Qingdao, Shandong 266580,China;
3. China Oilfield Services Limited, Tianjin 300459, China

Received:2023-04-25 Revised:2023-12-25 Online:2024-02-25 Published:2024-04-18

摘要/Abstract

摘要： 针对稠油油藏开采过程中存在的热损失大、含水率高及开发效率低等问题,以加拿大Mackay River油藏为研究对象,建立了热溶剂辅助重力泄油技术的数值模拟模型,分别对SAGD、VAPEX和热溶剂辅助重力泄油开采特征进行对比,对热溶剂辅助重力泄油开采技术的生产压力、注入速度和注入温度进行参数优化。研究结果表明:热溶剂辅助重力泄油技术在注采压差、采油速度和采收率方面优于SAGD与VAPEX技术;在实际开发过程中,热溶剂辅助重力泄油技术的最佳应用条件为:井底生产压力为700 kPa,注入速度为160 m³/d,注入温度为275 ℃;三维实验结果进一步验证了数值模拟运算结果的可行性。该研究可为后续浅层稠油油藏的高效开发提供借鉴。

关键词: 稠油开采, 重力泄油, 参数优化, 数值模拟, 提高采收率

Abstract: There are significant heat loss, high water cut, and poor development effects during the recovery process of heavy oil reservoirs. Taking the Mackay River Reservoir in Canada as the research object, the numerical simulation model of hot solvent-assisted gravity drainage technology was constructed, and characteristics of SAGD, VAPEX, and hot solvent-assisted gravity drainage recovery were compared. The parameters are optimized for production pressures, injection rates, and injection temperatures of hot solvents. The results show that the hot solvent-assisted gravity drainage technology is better than SAGD and VAPEX in terms of injection and production differential pressure, oil recovery, and oil recovery rate; in the actual development process, the optimal conditions for the application of hot solvent-assisted gravity drainage technology are as follows: the bottomhole production pressure is 700 kPa, the injection rate is 160 m³/d, and the injection temperature is 275 ℃. The results of the three-dimensional experiments further validate the results of the numerical simulation calculations. This study provides a reference for efficiently developing shallow heavy oil reservoirs.

Key words: heavy oil recovery, gravity drainage, parameter optimization, numerical simulation, enhanced oil recovery

中图分类号:

TE357.46

李松岩, 程浩, 韩瑞, 魏耀辉, 李明鹤, 冯世博. 稠油油藏热溶剂辅助重力泄油开采机理及参数优化[J]. 特种油气藏, 2024, 31(1): 74-80.

Li Songyan, Cheng Hao, Han Rui, Wei Yaohui, Li Minghe, Feng Shibo. Mechanism and Parameter Optimization of Thermal Solvent-Assisted Gravity Drainage Oil Recovery in Heavy Oil Reservoirs[J]. Special Oil & Gas Reservoirs, 2024, 31(1): 74-80.

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稠油油藏热溶剂辅助重力泄油开采机理及参数优化

Mechanism and Parameter Optimization of Thermal Solvent-Assisted Gravity Drainage Oil Recovery in Heavy Oil Reservoirs

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