塔中深层稠油减氧空气驱氧化特征及机理研究

doi:10.11885/j.issn.1674-5086.2024.02.29.03

西南石油大学学报(自然科学版) ›› 2024, Vol. 46 ›› Issue (4): 131-137.DOI: 10.11885/j.issn.1674-5086.2024.02.29.03

• 深层超深层油气勘探开发专刊 • 上一篇下一篇

塔中深层稠油减氧空气驱氧化特征及机理研究

伍藏原^1,2,3,4, 张迅⁵, 李杨^2,3,4, 姚杰², 冯其红¹

1. 中国石油大学(华东)石油工程学院, 山东青岛 266580;
2. 中国石油塔里木油田公司勘探开发研究院, 新疆库尔勒 841000;
3. 中国石油超深层复杂油气藏勘探开发技术研发中心, 新疆库尔勒 841000;
4. 新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心, 新疆库尔勒 841000;
5. 油气藏地质及开发工程全国重点实验室·西南石油大学, 四川成都 610500

收稿日期:2024-02-29 发布日期:2024-08-24
作者简介:伍藏原， 1979 年生，男，汉族，四川乐至人，博士研究生，主要从事油气藏提高采收率方面的研究。 Email： wuzy-tlm@petrochina.com.cn
张迅， 2000 年生，男，汉族，重庆荣昌人，硕士研究生，主要从事油气藏提高采收率方面的研究工作。E-mail： 592182991@qq.com
李杨， 1989 年生，女，汉族，山东菏泽人，硕士研究生，主要从事油气藏提高采收率的研究。 E-mail：lyang1-tlm@petrochina.com.cn
姚杰， 1986 年生，男，汉族，湖北天门人，主要从事油气藏提高采收率方面的研究。 E-mail： yaojietlm@petrochina.com.cn
冯其红， 1969 年生，男，汉族，四川西充人，教授，博士研究生导师，主要从事油气田开发方面的研究。E-mail： fengqihong@126.com

A Study on the Characteristics and Mechanism of Air Displacement of Deoxygenated Air in Tazhong Deep Heavy Oil

WU Zangyuan^1,2,3,4, ZHANG Xun⁵, LI Yang^2,3,4, YAO Jie², FENG Qihong¹

1. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China;
2. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
3. R & D Center for Ultra-Deep Complex Reservoir Exploration and Development, CNPC, Korla, Xinjiang 841000, China;
4. Engineering Research Center for Ultra-deep Complex Reservoir Exploration and Development, Xinjiang Uygur Autonomous Region, Korla, Xinjiang 841000, China;
5. National Key Laboratory of Petroleum and Gas Reservoir Geology and Exploitation Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2024-02-29 Published:2024-08-24
Contact: 冯其红，E-mail： fengqihong@126.com

摘要/Abstract

摘要： 针对塔中深层稠油油藏开展静态氧化实验，通过测试分析不同氧含量与不同氧化时间下产出油气组成，研究了油藏注减氧空气过程中原油与减氧空气的氧化特征、氧化途径与氧化机理。实验结果表明，原油的耗氧速率与减氧空气的氧含量呈正相关，与氧化时间呈负相关；二氧化碳的生成量随氧化时间与减氧空气氧含量的增加而增大；原油与减氧空气的反应会一定程度上使原油黏度增加，其黏度增加的幅度随减氧空气氧含量的升高和氧化时间的增长而增大；氧化后原油饱和烃与芳香烃的含量减少，胶质与沥青质的含量增加，且沥青质增加更为明显。原油在氧化后出现了C==O的伸缩振动峰，且振动峰随着减氧空气氧含量的增加而增强，说明原油在氧化过程中发生了加氧反应生成了醛类等物质，且氧化反应随着氧含量的升高而不断加深。

关键词: 原油氧化, 减氧空气, 加氧反应, 四族组分, 低温氧化

Abstract: Static oxidation experiments were carried out for the Tazhong deep heavy oil reservoir, the composition of oil and gas produced with different oxygen content and different oxidation times was analyzed, and the oxidation characteristics, oxidation pathways and oxidation mechanisms of crude oil and deoxygenated air in the process of deoxygenated air injection in the reservoir were studied. The experimental results showed that the oxygen consumption rate of crude oil was positively correlated with the oxygen content of oxygen-reduced air and negatively correlated with the oxidation time. The amount of generated carbon dioxide also increased with the increase of oxidation time and oxygen content of oxygen-reduced air. The reaction between crude oil and oxygen-reduced air can increase the viscosity of crude oil to a certain extent. The increase amplitude of viscosity was greater with higher oxygen content of oxygen-reduced air and longer oxidation time. After oxidation, the content of saturated hydrocarbons and aromatic hydrocarbons in crude oil decreased, while the content of resin and asphaltene increased, especially asphaltene. The C==O stretching vibration peak appeared in the crude oil after oxidation, and the vibration peak became stronger with the increase of oxygen content in oxygen-reduced air, indicating that the oxidation process of crude oil involved oxygenation reactions to generate substances such as aldehydes. With the increase of oxygen content, the oxidation reaction deepened continuously.

Key words: crude oil oxidation, oxygen-reduced air, oxygenation reaction, group IV components, low temperature oxidation

中图分类号:

TE357

伍藏原, 张迅, 李杨, 姚杰, 冯其红. 塔中深层稠油减氧空气驱氧化特征及机理研究[J]. 西南石油大学学报(自然科学版), 2024, 46(4): 131-137.

WU Zangyuan, ZHANG Xun, LI Yang, YAO Jie, FENG Qihong. A Study on the Characteristics and Mechanism of Air Displacement of Deoxygenated Air in Tazhong Deep Heavy Oil[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(4): 131-137.

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塔中深层稠油减氧空气驱氧化特征及机理研究

A Study on the Characteristics and Mechanism of Air Displacement of Deoxygenated Air in Tazhong Deep Heavy Oil

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