Novel Approach to Determining Unconsolidated Reservoir Properties: Fabric and Flow in Oil Sands
Notice bibliographique
Résumé
URTeC 1581573 Unconsolidated reservoirs are reservoirs that differ from the traditional rock reservoir model and are inherently complex. It is well known that hydrocarbon recovery is strongly influenced, not only by the fabric and arrangement which exist in the producing reservoirs but is also governed by the fluid interfacial properties. A large study on fabric and reservoir characteristics including properties which influence flow was carried out on oil sands from the estuarine environment of the McMurray Formation from the Athabasca region in Canada. The approach of this study was to view oil sands material as unconsolidated material and in keeping with the initial fabric analysis findings, reservoir material was studied according to fabric components such as coarse material (quartz grains), fine material (silts and clays), bitumen and voids. Methods used for the overall study included: field analysis, thin section analysis, point counting analysis, image analysis, sedimentation studies, SEM, microCT analysis, NMR and core analysis. From the initial 2D fabric analysis, the coarse components of the host material were determined to be fine to medium sized quartz grains embedded in the micromass and in some locations clay bridges were observed between grains. Clays can obstruct the water envelope around the grains and these features differ from the established water wet model. Grain size variations and differences in porosity occur in the host and bioturbated material. Fabric analyses provide key details regarding reservoir characteristics and provide insight into the quality of payzones. Analysis of fabric components from cores samples representing three different estuarine depositional environments and initial findings are presented and discussed. Morphological characteristics of coarse components (quartz grains) along with mechanical features, such as etching on the grain surfaces, observed in SEM suggested the samples were from a transitional environment such as estuarine, agreeing with details logged from the core. The core samples were subjected to microCT scanning at a resolution of 9 microns and 3D pore network models were created from which pore morphology along with key engineering properties related to modeling flow were obtained. Reservoirs fabric characteristics along with reservoir engineering properties are easily obtained from this new approach and methods, which enhance the understanding of reservoir quality.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,001 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,002 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
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.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
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
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».