Miscibility of light oil and flue gas under thermal action

The miscibility of flue gas and different types of light oils is investigated through slender-tube miscible displacement experiment at high temperature and high pressure. Under the conditions of high temperature and high pressure, the miscible displacement of flue gas and light oil is possible. At t...

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Main Authors: Changfeng XI, Bojun WANG, Fang ZHAO, Daode HUA, Zongyao QI, Tong LIU, Zeqi ZHAO, Junshi TANG, You ZHOU, Hongzhuang WANG
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2024-02-01
Series:Petroleum Exploration and Development
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1876380424600133
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author Changfeng XI
Bojun WANG
Fang ZHAO
Daode HUA
Zongyao QI
Tong LIU
Zeqi ZHAO
Junshi TANG
You ZHOU
Hongzhuang WANG
author_facet Changfeng XI
Bojun WANG
Fang ZHAO
Daode HUA
Zongyao QI
Tong LIU
Zeqi ZHAO
Junshi TANG
You ZHOU
Hongzhuang WANG
author_sort Changfeng XI
collection DOAJ
description The miscibility of flue gas and different types of light oils is investigated through slender-tube miscible displacement experiment at high temperature and high pressure. Under the conditions of high temperature and high pressure, the miscible displacement of flue gas and light oil is possible. At the same temperature, there is a linear relationship between oil displacement efficiency and pressure. At the same pressure, the oil displacement efficiency increases gently and then rapidly to more than 90% to achieve miscible displacement with the increase of temperature. The rapid increase of oil displacement efficiency is closely related to the process that the light components of oil transit in phase state due to distillation with the rise of temperature. Moreover, at the same pressure, the lighter the oil, the lower the minimum miscibility temperature between flue gas and oil, which allows easier miscibility and ultimately better performance of thermal miscible flooding by air injection. The miscibility between flue gas and light oil at high temperature and high pressure is more typically characterized by phase transition at high temperature in supercritical state, and it is different from the contact extraction miscibility of CO2 under conventional high pressure conditions.
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spelling doaj.art-68d6d2e3b8fc4d0c9ab9b2719691ac002024-02-18T04:39:36ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042024-02-01511164171Miscibility of light oil and flue gas under thermal actionChangfeng XI0Bojun WANG1Fang ZHAO2Daode HUA3Zongyao QI4Tong LIU5Zeqi ZHAO6Junshi TANG7You ZHOU8Hongzhuang WANG9State Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; China University of Geosciences (Beijing), Beijing 100083, China; Corresponding authorState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, ChinaThe miscibility of flue gas and different types of light oils is investigated through slender-tube miscible displacement experiment at high temperature and high pressure. Under the conditions of high temperature and high pressure, the miscible displacement of flue gas and light oil is possible. At the same temperature, there is a linear relationship between oil displacement efficiency and pressure. At the same pressure, the oil displacement efficiency increases gently and then rapidly to more than 90% to achieve miscible displacement with the increase of temperature. The rapid increase of oil displacement efficiency is closely related to the process that the light components of oil transit in phase state due to distillation with the rise of temperature. Moreover, at the same pressure, the lighter the oil, the lower the minimum miscibility temperature between flue gas and oil, which allows easier miscibility and ultimately better performance of thermal miscible flooding by air injection. The miscibility between flue gas and light oil at high temperature and high pressure is more typically characterized by phase transition at high temperature in supercritical state, and it is different from the contact extraction miscibility of CO2 under conventional high pressure conditions.http://www.sciencedirect.com/science/article/pii/S1876380424600133light oilflue gas floodingthermal miscible floodingmiscible lawdistillation phase transitionminimum miscible pressure
spellingShingle Changfeng XI
Bojun WANG
Fang ZHAO
Daode HUA
Zongyao QI
Tong LIU
Zeqi ZHAO
Junshi TANG
You ZHOU
Hongzhuang WANG
Miscibility of light oil and flue gas under thermal action
Petroleum Exploration and Development
light oil
flue gas flooding
thermal miscible flooding
miscible law
distillation phase transition
minimum miscible pressure
title Miscibility of light oil and flue gas under thermal action
title_full Miscibility of light oil and flue gas under thermal action
title_fullStr Miscibility of light oil and flue gas under thermal action
title_full_unstemmed Miscibility of light oil and flue gas under thermal action
title_short Miscibility of light oil and flue gas under thermal action
title_sort miscibility of light oil and flue gas under thermal action
topic light oil
flue gas flooding
thermal miscible flooding
miscible law
distillation phase transition
minimum miscible pressure
url http://www.sciencedirect.com/science/article/pii/S1876380424600133
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AT bojunwang miscibilityoflightoilandfluegasunderthermalaction
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AT daodehua miscibilityoflightoilandfluegasunderthermalaction
AT zongyaoqi miscibilityoflightoilandfluegasunderthermalaction
AT tongliu miscibilityoflightoilandfluegasunderthermalaction
AT zeqizhao miscibilityoflightoilandfluegasunderthermalaction
AT junshitang miscibilityoflightoilandfluegasunderthermalaction
AT youzhou miscibilityoflightoilandfluegasunderthermalaction
AT hongzhuangwang miscibilityoflightoilandfluegasunderthermalaction