Characterization of Fractured Reservoirs Using a Combination of Downhole Pressure and Self-Potential Transient Data
Joint Authors
Source
International Journal of Geophysics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-04
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In order to appraise the utility of self-potential (SP) measurements to characterize fractured reservoirs, we carried out continuous SP monitoring using multi Ag-AgCl electrodes installed within two open holes at the Kamaishi Mine, Japan.
The observed ratio of SP change to pressure change associated with fluid flow showed different behaviors between intact host rock and fractured rock regions.
Characteristic behavior peculiar to fractured reservoirs, which is predicted from numerical simulations of electrokinetic phenomena in MINC (multiple interacting continua) double-porosity media, was observed near the fractures.
Semilog plots of the ratio of SP change to pressure change observed in one of the two wells show obvious transition from intermediate time increasing to late time stable trends, which indicate that the time required for pressure equilibration between the fracture and matrix regions is about 800 seconds.
Fracture spacing was estimated to be a few meters assuming several micro-darcies (10-18 m2) of the matrix region permeability, which is consistent with geological and hydrological observations.
American Psychological Association (APA)
Nishi, Yuji& Ishido, Tsuneo. 2012. Characterization of Fractured Reservoirs Using a Combination of Downhole Pressure and Self-Potential Transient Data. International Journal of Geophysics،Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-449658
Modern Language Association (MLA)
Nishi, Yuji& Ishido, Tsuneo. Characterization of Fractured Reservoirs Using a Combination of Downhole Pressure and Self-Potential Transient Data. International Journal of Geophysics No. 2012 (2012), pp.1-13.
https://search.emarefa.net/detail/BIM-449658
American Medical Association (AMA)
Nishi, Yuji& Ishido, Tsuneo. Characterization of Fractured Reservoirs Using a Combination of Downhole Pressure and Self-Potential Transient Data. International Journal of Geophysics. 2012. Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-449658
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449658