| Autor: |
K. Arouri, M. AlSaif, M. Hakimuddin, I. Atwah |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Third EAGE Geochemistry Workshop. |
| DOI: |
10.3997/2214-4609.2021623006 |
| Popis: |
Summary In this study, we attempt to simulate the process of reservoir filling by artificially charging a reservoir core with oils of varying compositions and sequentially retrieving the different charges in order to prove the first in last out hypothesis. Proving this will ensure proper charge history analysis and the mapping of residual oils (from the different charges) at pore-scale, which is a prerequisite to improving the understanding of the distribution of the different hydrocarbon charges within the different pore networks and explaining how variations in fluid composition affect reservoir wettability. This has a direct impact on maximizing recovery strategies. Our analytical protocol includes the analysis and comparison of maturity and source data, and tak ing into account other compositional variations before and after the artificial charging experiment. The biomarker maturity parameters demonstrate that it is possible to retrieve the charges in a fashion opposite to their "artificial fill history". The first sequential extracts are indeed the second charge that is more mature, while later extracts represent the less-mature first charge. This proves the "first in – last out" theory experimentally, which is a key prerequisite to map the different charges at pore scale, and investigate the effect of different charge compositions on reservoir wettability. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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