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Realizing the Multi-Scale Nature of Fractured Reservoirs in Dual Porosity Dual Permeability Models
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Third EAGE Workshop on Naturally Fractured Reservoirs, Feb 2018, Volume 2018, p.1 - 5
Abstract
Summary
Fracture systems observed in naturally fractured reservoirs (NFRs) tend to be hierarchical ( Figure 1 ): (1) regional faults going through the reservoir or forming the reservoir boundaries and in-field seismically mappable faults; (2) fracture corridors sometimes associated with faults and (3) background fractures. Vertically, background fractures tend to be impacted by mechanical stratigraphy while fracture corridors and faults usually cross-cut through the reservoir units ( Figure 2 ). For fractured carbonate reservoirs, background fractures are usually more abundant but with much lower effective permeability than fracture corridors, and must be treated differently in a reservoir model.
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