The Effect of Different Gas Water Ratio on Recovery Factor and CO2 Storage Capacity in Water Alternating Gas Injection. A Case Study: “V” Field Development, North Sea

Sayen Girsang, None Deny Fatryanto, None Rohima Sera Afifah
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 This study was carried out using E300 reservoir simulator. The increase in recovery and CO2 storage were observed throught the parameters of recovery factor and CO2 storage capacity, while the determination of the best scenario in term of technical objective was observed using the parameters of objective function. This study was carried out in 3 different scenarios, which were the injection of 100% CO2, 60% CO2and 40% water, and 40% CO2 and 60% water
 Based on the observation, it was founded that third scenario with the GWR of 40:60 resulted the highest cumulative production and recovery factor with the value reaching 14.1 milliom m3 and 67.4%. Meanwhile the second scenario with the GWR of 60:40 has the highest CO2 storage capacity of 3 billion Sm3 CO2. The second scenario has the best performance in term of technical objective with the value of objective function reaching 0.45.","PeriodicalId":33635,"journal":{"name":"Journal of Earth Energy Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Earth Energy Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.25299/jeee.2022.6097","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract

CO2 injection is one of the Enhanced Oil Recovery (EOR) methods. In this study Water alternating gas (WAG) CO2 injection method was used to obain the maximum sweep efficiency. The purpose of this study was to analyze the effect of gas water ratio (GWR) value on recovery and CO2 storage capacity, and to analyze the best scenario in term of technical objective. This study was carried out using E300 reservoir simulator. The increase in recovery and CO2 storage were observed throught the parameters of recovery factor and CO2 storage capacity, while the determination of the best scenario in term of technical objective was observed using the parameters of objective function. This study was carried out in 3 different scenarios, which were the injection of 100% CO2, 60% CO2and 40% water, and 40% CO2 and 60% water Based on the observation, it was founded that third scenario with the GWR of 40:60 resulted the highest cumulative production and recovery factor with the value reaching 14.1 milliom m3 and 67.4%. Meanwhile the second scenario with the GWR of 60:40 has the highest CO2 storage capacity of 3 billion Sm3 CO2. The second scenario has the best performance in term of technical objective with the value of objective function reaching 0.45.
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不同气水比对水交注采收率和CO2储存量的影响案例研究:北海“V”油田开发
注二氧化碳是提高采收率(EOR)的方法之一。本研究采用水交替气(WAG) CO2注入法获得最大波及效率。本研究的目的是分析气水比(GWR)值对采收率和CO2储存量的影响,并根据技术目标分析最佳方案。本研究采用E300油藏模拟器进行。通过采收率和CO2储存量参数来观察采收率和CO2储存量的增加,通过目标函数参数来确定技术目标的最佳方案。本研究采用100% CO2、60% CO2 + 40%水、40% CO2 + 60%水3种不同的方案进行研究;通过观察发现,GWR为40:60的情景下,累计产量和采收率最高,达到1410万m3,累计采收率为67.4%。GWR为60:40的情景下,CO2储存量最高,达到30亿Sm3 CO2。第二种方案在技术目标方面表现最好,目标函数值达到0.45。
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审稿时长
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