Building more realistic siliciclastic reservoir models through integration of depositional and diagenetic heterogeneities in a flow unit approach
DOI:
https://doi.org/10.22456/1807-9806.37478Keywords:
reservoir heterogeneities, diagenesis, flow units, reservoir quality.Abstract
It is presented an approach for reservoir characterization and development based on the analysis of depositional reservoir heterogeneities, their hierarchy, and how these heterogeneities should be addressed in a flow unit model. Genetic flow units, as used in this paper, are scale-dependent elements that correspond to sub-systems of deposition (association of architectural elements), part of fourth-order sequence-stratigraphic units. They are used to provide consistent geologic controls for reservoir quality correlation at oil-field scale, especially during IOR/EOR (improved or enhanced oil/gas recovery projects). This scale dependency contrasts with the previous flow unit models. The predictive capacity of such model based on genetic flow unit relies on the recognition of genetic flow units in wireline log patterns, within a high-resolution stratigraphical framework. Diagenesis, sometimes a pervasive process responsible for strong porosity and permeability changes, is also discussed in this article, with emphasis to the integration of this kind of analysis in the reservoir modeling process. In some cases, the diagenetic impact or a post-depositional process (fracturing, for instance) may compromise the applicability of the genetic flow unit approach as proposed here.Downloads
Download data is not yet available.
Downloads
Published
2012-08-31
How to Cite
DAUDT, J. A. B., SCHERER, C. M. S., De ROS, L. F., & GOLDBERG, K. (2012). Building more realistic siliciclastic reservoir models through integration of depositional and diagenetic heterogeneities in a flow unit approach. Pesquisas Em Geociências, 39(2), 109–125. https://doi.org/10.22456/1807-9806.37478
Issue
Section
Articles
