塔中深层稠油在不同氧含量下的动力学特征研究

doi:10.11885/j.issn.1674-5086.2024.02.29.04

西南石油大学学报(自然科学版) ›› 2024, Vol. 46 ›› Issue (4): 123-130.DOI: 10.11885/j.issn.1674-5086.2024.02.29.04

• 深层超深层油气勘探开发专刊 • 上一篇下一篇

塔中深层稠油在不同氧含量下的动力学特征研究

周代余^1,2,3, 杜轩⁴, 杜虹宝^1,2,3, 闫更平^1,2,3, 罗浩⁴

1. 中国石油塔里木油田公司勘探开发研究院, 新疆库尔勒 841000;
2. 中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心, 新疆库尔勒 841000;
3. 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;
4. 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:周代余， 1973 年生，男，汉族，重庆铜梁人，高级工程师，博士，主要从事油气田开发和提高采收率方面的研究。 E-mail： zdytlm@petrochina.com.cn
杜轩， 1998 年生，男，汉族，黑龙江齐齐哈尔人，硕士研究生，主要从事油气藏提高采收率方面的研究。 E-mail： 1779708680@qq.com
杜虹宝， 1989 年生，男，汉族，黑龙江鹤岗人，高级工程师，硕士，主要从事碎屑岩非烃类气驱提高采收率研究。 E-mail： duhbtlm@petrochina.com.cn
闫更平， 1985 年生，男，汉族，山东潍坊人，高级工程师，硕士，主要从事油气田开发方面的研究工作。 E-mail： ygpingtlm@petrochina.com.cn
罗浩， 2000 年生，男，汉族，四川大竹人，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： 1127438448.con@qq.com

A Study on the Kinetic Characteristics of Tazhong Deep Heavy Oil with Different Oxygen Contents

ZHOU Daiyu^1,2,3, DU Xuan⁴, DU Hongbao^1,2,3, YAN Gengping^1,2,3, LUO Hao⁴

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

Received:2024-02-29 Published:2024-08-24
Contact: 周代余，E-mail： zdy-tlm@petrochina.com.cn

摘要/Abstract

摘要： 原油在减氧空气中发生氧化反应的过程复杂，准确分析油藏条件下原油氧化反应动力学特征十分重要。为实现对油藏条件下原油氧化反应的准确分析，需进行定性与定量综合研究。采用差示扫描量热法(DSC)、热重法(TG)等定性与定量测试方法，综合研究塔中深层稠油油藏在不同氧含量下的氧化机理、氧化放热、失重和动力学特征。DSC实验结果表明，氧含量的提升对原油的氧化热效应促进明显，原油的氧化放热量与峰值热流量随着氧含量的升高而大幅增加。TG实验表明，随着氧含量的升高，原油的低温氧化区间不断缩短，低温氧化阶段的质量消耗减少。低温氧化区间的温度范围随静态氧化时减氧空气中氧含量的升高(氧化程度的加深)而逐渐变窄。基于TG实验数据，使用微分法Friedman和微分法OFW求取的原油低温氧化阶段活化能接近，且活化能均随转化率的升高而增加，塔中深层稠油在氧含量为5%的减氧空气中低温氧化阶段平均活化能为81.04 kJ/mol。

关键词: 原油氧化, 减氧空气, 动力学分析, 热效应, 氧化机理

Abstract: The oxidation process of crude oil in oxygen-reduced air is complex. In order to accurately analyze the oxidation reaction of crude oil under reservoir conditions, it is necessary to carry out comprehensive qualitative and quantitative studies. In order to further explore the oxidation mechanism of crude oil in the process of deoxygenated air flooding, and to clarify its oxidation heat release, weight loss and kinetic characteristics, the thermal analysis experiment of Tazhong deep heavy oil reservoir in Tarim Oilfield is carried out. DSC results show that the increase of oxygen content significantly promotes the oxidation heat effect of crude oil, and the overall oxidation heat release and peak heat flow of crude oil increase greatly with the increase of oxygen content. TG experiments show that with the increase of oxygen content, the low temperature oxidation interval of crude oil keeps shortening, and the mass consumption in the low temperature oxidation stage is reduced. The temperature range of the low-temperature oxidation interval gradually narrows with the increase of oxygen content in the oxygen reduction air (the deepening of oxidation degree) during static oxidation. Based on the TG experiment data, the activation energy of crude oil in the low-temperature oxidation stage obtained with Friedman and OFW methods is close, and the activation energy increases with the increase of conversion rate. The average activation energy of crude oil used in the experiment in the low-temperature oxidation stage in oxygen reduced air with oxygen content of 5% is 81.04 kJ/mol.

Key words: crude oil oxidation, oxygen-reduced air, kinetic analysis, thermic effect, oxidation mechanism

中图分类号:

TE357

周代余, 杜轩, 杜虹宝, 闫更平, 罗浩. 塔中深层稠油在不同氧含量下的动力学特征研究[J]. 西南石油大学学报(自然科学版), 2024, 46(4): 123-130.

ZHOU Daiyu, DU Xuan, DU Hongbao, YAN Gengping, LUO Hao. A Study on the Kinetic Characteristics of Tazhong Deep Heavy Oil with Different Oxygen Contents[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(4): 123-130.

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塔中深层稠油在不同氧含量下的动力学特征研究

A Study on the Kinetic Characteristics of Tazhong Deep Heavy Oil with Different Oxygen Contents

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