CO2 Based VAPEX for Heavy Oil Recovery in Naturally Fractured Carbonate Reservoirs
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Résumé
CO2 Based VAPEX for Heavy Oil Recovery in Naturally Fractured Carbonate Reservoirs Ali Gul; Ali Gul University of Alberta Search for other works by this author on: This Site Google Scholar Japan J Trivedi Japan J Trivedi University of Alberta Search for other works by this author on: This Site Google Scholar Paper presented at the SPE EOR Conference at Oil & Gas West Asia, Muscat, Oman, April 2010. Paper Number: SPE-129594-MS https://doi.org/10.2118/129594-MS Published: April 11 2010 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Gul, Ali , and Japan J Trivedi. "CO2 Based VAPEX for Heavy Oil Recovery in Naturally Fractured Carbonate Reservoirs." Paper presented at the SPE EOR Conference at Oil & Gas West Asia, Muscat, Oman, April 2010. doi: https://doi.org/10.2118/129594-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE EOR Conference at Oil and Gas West Asia Search Advanced Search Abstract With the increasing demand for energy production and environmental concerns, the focus has been shifting towards new green recovery techniques for heavy oil complex reservoirs such as naturally fractured carbonate reservoirs (NFCRs). After the success of VAPEX as an alternate to SAGD for heavy oil recovery, it has been studied for fractured reservoirs in recent years. Moreover, CO2 has been a successful EOR agent in fractured light-medium oil reservoirs and thus can be used as a higher soluble, low cost, and environment friendly alternate to solvent. Our aim is to show that CO2 with VAPEX could be a feasible choice for NFCRs. This work is focused on investigating the applicability and optimization of CO2 based solvent extraction process for heavy oil recovery and greenhouse gas sequestration from NFCRs.A series of numerical experiments were performed to study the role of a) solvent type, b) operating condition, c) oil and gas diffusion, and d) extraction process; in various single/multiple fracture configurations while injecting CO2 - solvent in different ratios. The optimal injection rate and CO2 - solvent concentration ratio were obtained considering maximum oil recovery and CO2 storage. A parametric study was also performed to analyze the influence of various operational and reservoir parameters such as fracture properties, fracture configurations, oil viscosity, solvent type, and injection/production constrains. The results suggested that CO2 or conventional VAPEX alone may not be able to achieve higher recovery in high pressure NFCRs, but CO2 based VAPEX can provide efficient technique to recover heavy oil with emphasis on sequestration. Keywords: carrier gas, injection rate, modeling & simulation, effective molecular diffusion coefficient, permeability, vapex process, enhanced recovery, fractured reservoir, recovery, diffusion coefficient Subjects: Improved and Enhanced Recovery, Unconventional and Complex Reservoirs, Naturally-fractured reservoirs, Carbonate reservoirs Copyright 2010, Society of Petroleum Engineers You can access this article if you purchase or spend a download.
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| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
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Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
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score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
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