The potential and mechanism of nonionic polyether surfactants dissolved in CO2 to improve the miscibility of CO2–hydrocarbon systems

混溶性 碳氢化合物 溶解度 肺表面活性物质 溶解 化学工程 化学 非离子表面活性剂 提高采收率 相(物质) 烷基 有机化学 材料科学 聚合物 工程类
作者
Wei Lv,Hongyu Gong,Yajun Li,Zijin Li,Mingzhe Dong
出处
期刊:Fuel [Elsevier]
卷期号:326: 125012-125012 被引量:8
标识
DOI:10.1016/j.fuel.2022.125012
摘要

Certain unique reservoir conditions and technical difficulties have greatly limited the use of CO2 miscible injection in unconventional reservoirs. Lowering the miscibility pressure to realize the miscibility of CO2 and crude oil is critical for achieving the most efficient recovery process. In this study, we investigated whether nonionic polyether surfactants could improve the miscibility of CO2 and hydrocarbons. And an improved experimental method for a quantitative evaluation of additive efficiencies in lowering the miscibility pressure was introduced for the first time. The dissolution behaviors of nonionic polyether surfactants in CO2 and phase behaviors of CO2–hydrocarbon systems with and without surfactant additives were conducted. The effects of surfactant structure and concentration and temperature on the solubility of nonionic polyether surfactants in CO2 along with the efficiency of miscibility pressure reduction for CO2–hydrocarbon systems were analyzed. The results showed that the polyoxypropylene alkyl ethers exhibited excellent potential for improving the miscibility of the CO2 and hydrocarbons, especially when low molecular weight surfactant molecules with high polyoxypropylene group content were used. The first-contact miscibility pressure (FCMP) of the mixed oil and CO2 could be reduced by as much as 22.51% with 3 wt% C4(PO)3 addition. Furthermore, a mechanistic understanding showed that the solubilization of the CO2 caused by polyether reverse micelles resulted in a reduction of miscibility pressures for CO2–hydrocarbon systems. The study results and the novel evaluation method provided guidance for designing and selecting appropriate additive structures to reduce miscibility pressures of CO2–oil systems and meet the CO2 miscible injection technology requirements.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Yziii应助傻傻的哲瀚采纳,获得10
刚刚
1秒前
colobe完成签到 ,获得积分10
2秒前
py发布了新的文献求助20
3秒前
FashionBoy应助SXM采纳,获得10
3秒前
求助发布了新的文献求助10
3秒前
Hello应助琴琴iam采纳,获得10
4秒前
ohevenne完成签到,获得积分10
4秒前
ksiswl发布了新的文献求助10
5秒前
崔西周完成签到,获得积分20
5秒前
小二郎应助qianlan采纳,获得10
5秒前
5秒前
6秒前
6秒前
瓜呱完成签到 ,获得积分10
6秒前
mount完成签到,获得积分10
7秒前
英勇的剑发布了新的文献求助10
7秒前
8秒前
坚强亦丝发布了新的文献求助10
8秒前
诺诺应助努力的小崔采纳,获得10
9秒前
ohevenne发布了新的文献求助10
10秒前
吉祥完成签到,获得积分10
11秒前
LSQ发布了新的文献求助10
11秒前
feng_qi001完成签到,获得积分10
12秒前
Ansels发布了新的文献求助20
12秒前
13秒前
852应助刘若昕采纳,获得10
16秒前
17秒前
wyh295352318完成签到 ,获得积分10
19秒前
桐桐应助天涯倦客采纳,获得50
19秒前
研友_8Kkp38发布了新的文献求助10
19秒前
赘婿应助wsj采纳,获得10
20秒前
隐形曼青应助狂飙的蛋采纳,获得10
20秒前
21秒前
今后应助Ansels采纳,获得10
21秒前
wanci应助qy采纳,获得10
23秒前
25秒前
26秒前
Billy应助科研通管家采纳,获得10
26秒前
kento应助科研通管家采纳,获得150
26秒前
高分求助中
Sustainability in Tides Chemistry 1500
TM 5-855-1(Fundamentals of protective design for conventional weapons) 1000
Handbook of the Mammals of the World – Volume 3: Primates 600
Gerard de Lairesse : an artist between stage and studio 500
Digging and Dealing in Eighteenth-Century Rome 500
Queer Politics in Times of New Authoritarianisms: Popular Culture in South Asia 500
Livre et militantisme : La Cité éditeur 1958-1967 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3064408
求助须知:如何正确求助?哪些是违规求助? 2719100
关于积分的说明 7462761
捐赠科研通 2365526
什么是DOI,文献DOI怎么找? 1253993
科研通“疑难数据库(出版商)”最低求助积分说明 608737
版权声明 596684