超细金属催化剂改善稠油火烧效果实验研究

张弦; 车洪昌; 刘以胜; 陈鑫

doi:10.13809/j.cnki.cn32-1825/te.2019.04.007

石油工程 | 浏览量 : 0 下载量: 23 CSCD: 4 CNKI被引量: 6 Scopus: 0 更多指标

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超细金属催化剂改善稠油火烧效果实验研究
Improved efficiency of in-situ combustion by application of submicro metal oxides particles
2019年第4期页码：36-40
纸质出版：2019
DOI： 10.13809/j.cnki.cn32-1825/te.2019.04.007
稿件说明：

移动端阅览

张弦, 车洪昌, 刘以胜, 等. 超细金属催化剂改善稠油火烧效果实验研究[J]. 油气藏评价与开发, 2019,(4):36-40. DOI： 10.13809/j.cnki.cn32-1825/te.2019.04.007.

ZHANG Xian, CHE Hongchang, LIU Yisheng, et al. Improved efficiency of in-situ combustion by application of submicro metal oxides particles[J]. Petroleum Reservoir Evaluation and Development, 2019, (4): 36-40. DOI： 10.13809/j.cnki.cn32-1825/te.2019.04.007.

摘要

了明确超细过渡金属催化剂对稠油火烧效果的影响

应用热分析及等转化率方法对NiO、α·Fe

和Co

三种超细过渡金属粒子进行火烧氧化动力学评价

并应用优选出的催化剂开展一维火驱实验。实验结果表明

在Co

存在的条件下

稠油活化能降低幅度最大

达41.7%

且Co

催化活性较高

适合作为火驱实验的催化剂。与纯火驱相比

催化条件下原油的高温氧化反应得到强化

氧气利用率提高6.79%

燃烧时间缩短11.8%

燃烧前缘平均温度提高20℃

燃烧前缘最大温度差降低4℃

燃烧更加稳定

且前缘推进速度加快了0.042 cm/min

最终驱油效率提高5.7%

产出油降黏率提高7.2%。研究成果对拓展火烧油层开采稠油的应用具有重要的指导意义。

Abstract

In order to identify the effect of ultra-fine transition metal catalyst on the in-situ combustion of heavy oil

thermal analysis and isoconversional method were used to evaluate the burning oxidation kinetics of three ultra-fine transition metal particles—NiO

α·Fe

and Co

. And then

one-dimensional in-situ combustion experiment was carried out by the optimized catalyst. The experimental results showed that

in the presence of Co

the activation energy of heavy oil decreased the m

ost

up to 41.7 %. Meanwhile

had higher catalytic activity

that made it suitable for in-situ combustion experiment. Compared to conventional in-situ combustion

high temperature oxidation reaction of crude oil was enhanced under the catalytic condition of Co

. The oxygen utilization ratio increased by 6.79 %

the combustion time shortened by 11.8 %

the average temperature of the leading edge of combustion increased by 20 ℃

the maximum temperature difference of the leading edge of combustion reduced by 4 ℃

the combustion was more stable

the advance speed of the leading edge increased by 0.042 cm/min

the final oil displacement efficiency increased by 5.7 %

and the viscosity reduction rate of the produced oil increased by 7.2 %. The research results have important guiding significance for expanding the application of heavy oil recovery by in-situ combustion.

关键词

Keywords

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