Impacto en la incorporación de reservas en procesos de recobro mejorado térmico de inyección cíclica de vapor mediante el uso de nanofluidos
The processes of improved thermal recovery by cyclic steam injection have been used successfully in heavy and extra-heavy crude oil reservoirs as a strategy for recovering remaining reserves. The increase in oil recovery is caused by the reduction in viscosity of crude oil, which leads to an increas...
- Autores:
-
Caro Vélez, Cristina
- Tipo de recurso:
- Work document
- Fecha de publicación:
- 2019
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/75839
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/75839
- Palabra clave:
- Ingeniería química::Tecnología de explosivos, combustibles, productos relacionados
Heavy Oil Crude
Thermal Recovery
In-Situ Improvement
Nanofluid
Crudo Pesado
Recobro Térmico
Mejoramiento In-Situ
Nanofluido
- Rights
- openAccess
- License
- Atribución-NoComercial-SinDerivadas 4.0 Internacional
| Summary: | The processes of improved thermal recovery by cyclic steam injection have been used successfully in heavy and extra-heavy crude oil reservoirs as a strategy for recovering remaining reserves. The increase in oil recovery is caused by the reduction in viscosity of crude oil, which leads to an increase in mobility and a decrease in the residual saturation of the oil present in the formation. However, the chemistry of crude oil is not noticeably modified, so its effect on mobility is temporary, returning to its conditions before steam injection when returning to the formation temperature in its production cycle. Thus, in this work it seeks to harness steam energy in the in-situ improvement process in order to increase recoverable reserves and improve the quality of the oil recovered in each steam injection cycle, by adding a nanofluid With a capacity for catalytic decomposition of fractions heavys in a dynamic laboratory-scale test at a steam temperature of 210°C. evaluating the saturation states and effluents produced in the different injection cycles. achieving an incremental oil recovery up to 30% and API gravity changes from 6.9 to 15.8 °API in the first cycle, in addition viscosity, simulated distillation, and asphaltene content were evaluated, to model a type well with which an incorporation of reserves up to 26.7% was determined by the addition of the nanofluid. |
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