Integración de métodos estratigráficos de afloramiento y subsuelo para la caracterización de rocas almacén
- Viseras, César
- Henares, Saturnina
- Yeste, Luis Miguel
- Pla-Pueyo, Sila
- Jaimez, Javier
- Teixidó, Teresa
- Peña, Jose Antonio
ISSN: 1132-9157
Año de publicación: 2015
Volumen: 23
Número: 2
Páginas: 194-207
Tipo: Artículo
Otras publicaciones en: Enseñanza de las ciencias de la tierra: Revista de la Asociación Española para la Enseñanza de las Ciencias de la Tierra
Resumen
workflow, developed by this research group of the University of Granada, is presented here based on the comparison between outcrop and subsurface data, at various scales, in outcrop analogues of fluid reservoirs (O/BO characterization). As an example, the study methodology is applied to a Triassic sandstone body. Such methodology consists of: (1) facies and architectural element analyses on outcrop; (2) drilling of wells with core recovery (four in this case); (3) core description and interpretation of the corresponding borehole logs (Natural and Spectral Gamma Ray as well as Optical and Acoustic Televiewers); (4) performance of georadar profiles behind the outcrop (five in this case); (5) thin-section characterization of the composition and diagenetic history of the sediments and (6) analysis of spatial distribution patterns of petrophysical properties (porosity and permeability), all of this for the different subenvironments recognized. Coupling of all these multiscale data allows us to construct, by using the modeling software Petrel (Schlumberger), facies and petrophysical 3D models which can be very useful for the strategy in fluid enhanced recovery (oil, gas or water) as well as for the CO2 storage in analogue reservoirs. This case study highlights the great educational interest of stratigraphic-sedimentological data visible in outcrop with corresponding subsurface information to Geology students and professionals of Applied Geology working with reservoir rocks.