Full text loading...
-
The Structural Control of Fluid Flow in Fractured Carbonate Units – Example of a Cave Development
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, First EAGE/SBGf Workshop 2013, Rio de Janeiro - Fractures in Conventional and Unconventional Reservoirs, Nov 2013, cp-365-00010
- ISBN: 978-90-73834-59-0
Abstract
The porosity-permeability ratio on carbonate reservoirs is a complex subject. The objective of this study is to contribute for the investigation of the role of fractures on carbonate rocks´ permeability. For that we studied, from a geomechanical perspective, the process of development of the second biggest cave on the carbonate rocks of the Jandaíra Formation (Potiguar Basin, NE Brazil) . This cave (the Furna Feia) presents evidences of structural control and the numerical models performed on this study indicated that the fractures on the cave´s area are in dilation as a function of the present-day stress regime on the Basin. This process probably is a main factor for the conduction of fresh water flow along the natural fracture network on that area.