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Petroleum Geoscience; August 2007; v. 13; no. 3; p. 195-211; DOI: 10.1144/1354-079305-697
© 2007 Geological Society of London
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Original Article

Static characterizations of reservoirs: refining the concepts of connectivity and continuity

Joseph M. Hovadik1 and David K. Larue2

1 Chevron, Energy Technology Company, 6001 Bollinger Canyon Rd, San Ramon, CA 94583, USA (e-mail: hovj@chevron.com)
2 Chevron, Energy Technology Company, 9525 Camino Media, Bakersfield, CA 93311, USA (e-mail: dkla@chevron.com)

Static descriptive measures can be used to quantify characteristics of a 3D reservoir model. These static measures may have implications for the prediction or interpretation of dynamic performance and can draw attention to geological uncertainties that may impact flow behaviours. This study reviews, modifies and introduces techniques to characterize the spatial distribution of permeability in reservoir models, with emphasis placed on connectivity and continuity analysis. Topics include: the relationship between connectivity and percolation theory; definition of types of reservoir connectivity; methods of measuring connectivity; connectivity as a function of distance; connectivity maps; categorical classifications of connectivity; types of reservoir path lengths; and continuity lines. The key factors controlling reservoir connectivity are identified. Static measures can be used to locate regions of higher sweep efficiency and lower tortuosity that are connected to the wells.

KEYWORDS: reservoir characterization, reservoir connectivity, reservoir permeability, reservoir heterogeneity, reservoir sweep efficiency, reservoir performance




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G. de Jager, J. F. M. Van Doren, J. D. Jansen, and S. M. Luthi
An evaluation of relevant geological parameters for predicting the flow behaviour of channelized reservoirs
Petroleum Geoscience, November 1, 2009; 15(4): 345 - 354.
[Abstract] [Full Text] [PDF]


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