轻质原油低温氧化催化技术

doi:10.7623/syxb201510008

石油学报 ›› 2015, Vol. 36 ›› Issue (10): 1260-1266.DOI: 10.7623/syxb201510008

轻质原油低温氧化催化技术

王杰祥¹, 王腾飞¹, 杨长华¹, 陈征¹, 于英俊²

1. 中国石油大学石油工程学院山东青岛 266580;
2. 中国石油大港油田公司第四采油厂天津 300280

收稿日期:2015-04-06 修回日期:2015-08-26 出版日期:2015-10-25 发布日期:2015-11-09
通讯作者: 王腾飞,男,1987年10月生,2009年获中国石油大学(华东)学士学位,现为中国石油大学(华东)油气田开发工程专业博士研究生,主要从事油田化学及提高采收率方面的研究。Email:wangtengfeiforever@126.com
作者简介:王杰祥,男,1963年9月生,1986年获华东石油学院学士学位,2002年获石油大学(华东)博士学位,现为中国石油大学(华东)石油工程学院教授,主要从事油气田开发的基础理论与现场应用研究工作。Email:jiexiangwang@upc.edu.cn
基金资助:
中央高校基本科研业务费专项资金项目(24720136022A)资助。

Low-temperature oxidation catalytic technology of light crude oil

Wang Jiexiang¹, Wang Tengfei¹, Yang Changhua¹, Chen Zheng¹, Yu Yingjun²

1. School of Petroleum Engineering, China University of Petroleum, Shandong Qingdao 266580, China;
2. The Fourth Oil Production Plant, PetroChina Dagang Oilfield Company, Tianjin 300280, China

Received:2015-04-06 Revised:2015-08-26 Online:2015-10-25 Published:2015-11-09

摘要/Abstract

摘要：

注空气采油技术由于气源和成本优势,具有广阔的发展潜力,但是安全问题一直是限制其应用的重要因素。为加快氧气消耗速率,降低生成烟道气中氧气的含量,提高注空气的安全性,进行了原油低温氧化催化技术研究。通过评价过渡金属元素对低温氧化反应的催化效果,筛选了催化剂及其用量;研究了温度、压力、含水率和岩石矿物等对催化性能的影响,并采用多管平行实验研究了不同反应阶段低温氧化反应的特征;在动力学参数计算和红外谱图分析的基础上研究了原油低温氧化催化反应的催化机理。实验结果表明:过渡金属元素Cu对原油低温氧化反应有很好的催化效果,优选的催化剂为CuCl₂,最佳用量为原油质量的0.88%,在油藏条件下可提高反应速率近2倍;温度和压力升高对低温氧化反应有促进作用,在所研究的温度、压力和反应阶段内,催化剂的低温氧化催化效果显著;催化剂对原油低温氧化反应的催化机理为配位催化,可显著降低反应的活化能,加快低温氧化反应速率,提高原油的耗氧能力。

关键词: 注空气, 过渡金属, 催化剂, 动力学参数, 配位催化

Abstract:

The air flooding technology has a broad development potential because of its gas source and price advantages, but the security problem has always been a major factor limiting its application. A study was conducted on the low-temperature oxidation catalytic technology, aiming to accelerate the oxygen consumption rate, reduce oxygen content in the generated flue gas and improve the safety of air flooding. Then the catalyst and its dosage was determined by evaluating the catalytic effect of transition metal elements on low-temperature oxidation reaction. The influences of temperature, pressure, water content and rock minerals on catalytic performance were also studied. Meanwhile, multi-tube parallel experiments were carried out to study the characteristics of low-temperature oxidation reaction in different stages. The catalytic mechanism of low-temperature oxidation catalytic reaction was investigated on the basis of kinetic parameter calculation and infrared spectrum analysis. The experimental results show that the transition metal element Cu has a good catalytic effect on the low-temperature oxidation reaction of crude oil; CuCl₂ is selected as the optimal catalyst, and its optimal dosage is 0.88% of the crude oil mass; the reaction rate can be increased by nearly a double under the reservoir conditions. The rising temperature and pressure can promote the low-temperature oxidation reaction, and the low-temperature oxidation catalytic effect is significant within the designed temperature, pressure and reaction stages. The mechanism of catalyst for the low-temperature oxidation reaction of crude oil was coordination catalysis, which can reduce the reaction activation energy significantly, accelerate the low-temperature oxidation reaction rate and enhance the oxygen consumption ability of crude oil.

Key words: air injection, transition metal, catalyst, kinetic parameters, coordination catalysis

中图分类号:

TE357.4

王杰祥, 王腾飞, 杨长华, 陈征, 于英俊. 轻质原油低温氧化催化技术[J]. 石油学报, 2015, 36(10): 1260-1266.

Wang Jiexiang, Wang Tengfei, Yang Changhua, Chen Zheng, Yu Yingjun. Low-temperature oxidation catalytic technology of light crude oil[J]. Acta Petrolei Sinica, 2015, 36(10): 1260-1266.

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轻质原油低温氧化催化技术

Low-temperature oxidation catalytic technology of light crude oil

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