| An Investigation of Gas- Fingering Behavior during CO2 Flooding in Acid Stimulation Formations | |
Li, Longlong1,2; Jia, Cunqi3; Yao, Jun4; Sepehrnoori, Kamy3; Abushaikha, Ahmad5; Liu, Yuewu1,2
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| Corresponding Author | Jia, Cunqi([email protected]) |
| Source Publication | SPE JOURNAL
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| 2024-06-01 | |
| Volume | 29Issue:6Pages:3369-3386 |
| ISSN | 1086-055X |
| Abstract | CO2 flooding is emerging as a pivotal technique used extensively for carbon capture, utilization, and storage (CCUS) strategies. Acid stimulation is one common technique widely used to improve well- formation connectivity by creating wormholes. This work is motivated to investigate the gas- fingering behavior induced by acid stimulation during CO2 flooding. We present an integrated simulation framework to couple the acid stimulation and CO2 flooding processes, in which the two - scale continuum model is used to model the development of wormhole dissolution patterns. Then, sensitivity case simulations are conducted through the equation of state (EOS)- based compositional model to further analyze the CO2 fingering behavior in acid stimulation formations separately under immiscible and miscible conditions. Results demonstrate that for acid stimulation, the typical dissolution patterns and the optimal acid injection rate corresponding to the minimum acid breakthrough volume observed in the laboratory are prevalent in field - scale simulations. For CO2 flooding simulation, the dissolution patterns trigger CO2 fingering (bypassing due to the high conductivity of wormholes) in the stimulated region, and a lateral boundary effect eliminating fingers exerts its influence over the system through transverse mixing. The optimal acid injection rate varies when the focus of interest changes from the minimum acid breakthrough volume to CO2 flooding performance. The best CO2 flooding performance is always observed in uniform dissolution, and the dissolution patterns have a greater influence on the performance under miscible conditions. This work provides technical and theoretical support for the practical application of acid stimulation and CO2 flooding. |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001260902500001 |
| WOS Keyword | OPERATOR-BASED LINEARIZATION ; PORE-SCALE SIMULATION ; WORMHOLE FORMATION ; MISCIBLE DISPLACEMENT ; REACTIVE-DISSOLUTION ; CARBONATE ; MODEL ; FLOW ; PROPAGATION ; INJECTION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Petroleum |
| Funding Project | Beijing Municipal Natural Science Foundation[2232073] |
| Funding Organization | Beijing Municipal Natural Science Foundation |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95883 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Jia, Cunqi |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 3.Univ Texas Austin, Hildebrand Dept Petr & Geosyst Engn, Austin, TX 78712 USA 4.China Univ Petr East China, Sch Petr Engn, Dongying, Peoples R China 5.Hamad Bin Khalifa Univ, Coll Sci & Engn, Ar Rayyan, Qatar |
| Recommended Citation GB/T 7714 | Li, Longlong,Jia, Cunqi,Yao, Jun,et al. An Investigation of Gas- Fingering Behavior during CO2 Flooding in Acid Stimulation Formations[J]. SPE JOURNAL,2024,29,6,:3369-3386. |
| APA | Li, Longlong,Jia, Cunqi,Yao, Jun,Sepehrnoori, Kamy,Abushaikha, Ahmad,&Liu, Yuewu.(2024).An Investigation of Gas- Fingering Behavior during CO2 Flooding in Acid Stimulation Formations.SPE JOURNAL,29(6),3369-3386. |
| MLA | Li, Longlong,et al."An Investigation of Gas- Fingering Behavior during CO2 Flooding in Acid Stimulation Formations".SPE JOURNAL 29.6(2024):3369-3386. |
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