| Titre | Alternative indicators to assess the distribution characteristics of methane, ethane, and propane derived from petroleum in the Montney Formation, Western Canada |
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| Auteur | Cesar, J ; Mayor,
B; Deblonde, C; Ardakani, O H |
| Source | Fuel vol. 294, 120524, 2021 p. 1-14, https://doi.org/10.1016/j.fuel.2021.120524 |
| Image |  |
| Année | 2021 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20200657 |
| Éditeur | Elsevier |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1016/j.fuel.2021.120524 |
| Media | papier; numérique; en ligne |
| Formats | pdf; html |
| Province | Alberta; Colombie-Britannique |
| SNRC | 83C; 83E; 83F; 83K; 83L; 83M; 83N; 84C; 84D; 84E; 84L; 93J; 93O; 93P; 94A; 94B; 94G; 94H; 94I; 94J |
| Région | Grande Prairie; Fort St. John |
| Lat/Long OENS | -123.0000 -116.2500 58.2500 51.7500 |
| Sujets | ressources pétrolières; hydrocarbures; gaz; géochimie organique; méthane; ethane; propane; roches reservoirs; migration des hydrocarbures; altération thermique; antécédents tectoniques; historique de
l'enfouissement; soulèvement de la croûte; maturation thermique; Formation de Montney ; Bassin sédimentaire de l'ouest du Canada; combustibles fossiles; géochimie; Sciences et technologie; Nature et environnement |
| Illustrations | graphiques; graphique à barres; cartes de localisation; cartes géolscientiques généralisées |
| Programme | Les géosciences pour les nouvelles sources d'énergie Caractérisation des réservoirs de schiste |
| Diffusé | 2021 03 12 |
| Résumé | (disponible en anglais seulement)
Understanding fluid distribution within the most prolific low-permeability hydrocarbon reservoir of the Western Canadian Sedimentary Basin (WCSB), the Montney
Formation, continues to be a challenge due to the complex history of hydrocarbon migration, which includes thermal alteration of hydrocarbons that migrated before maximum burial as well as more recent migration due to uplifting in the Eocene. In this
study, we have assessed the occurrence of methane, ethane, and propane using parameters that are based on the possibility of molecular interconversion between C1-C3 alkanes. This approach allowed us to identify the boundary between two hydrocarbon
plays within the Montney Formation based on the composition coefficient Q, and the compositional factors (C2H6)2 and (CH4).(C3H8), which are less susceptible to methane migration [particularly (C2H6)2]. One play is located primarily in Alberta and
includes unconventional and conventional hydrocarbon fields; the second play is located exclusively in British Columbia and consists of unconventional hydrocarbon fields. Our new approach enables the identification of main hydrocarbon migration zones
within conventional and unconventional sections (e.g. northeast, southeast, and central-west). Additionally, we used the C2/C3 ratio as a maturity indicator in the Montney Formation, which facilitates the identification of overpressure zones (to the
southwest) and target areas for natural gas liquids (NGL) production (based on an estimated 1.5 %Ro). The assessment we have conducted can be further explored in other low-permeability hydrocarbon reservoirs. |
| Sommaire | (Résumé en langage clair et simple, non publié)
Pour la première fois, la présence et la répartition des hydrocarbures gazeux provenant d'un réservoir de faible perméabilité dans le bassin
sédimentaire de l'Ouest canadien ont été évaluées selon une approche d'équilibre géochimique. L'étude fournit de nouveaux paramètres géochimiques pour (i) définir les zones d'hydrocarbures, (ii) estimer la maturité thermique, (iii) identifier les
zones de surpression ainsi que les zones cibles pour la production de gaz naturel-liquide, et (iv) identifier les principales zones de migration des hydrocarbures. |
| GEOSCAN ID | 327930 |
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