About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 72 (1988)

Issue: 6. (June)

First Page: 765

Last Page: 771

Title: A Method of Viewing "Water" and "Oil" Distribution in Native-State and Restored-State Reservoir Core: GEOLOGIC NOTE

Author(s): M. McKellar, N. C. Wardlaw (2)


Water-oil distribution and wettability within reservoir core, at both initial water saturation (Swi) and residual oil saturation (Sor), can be replicated and subsequently viewed in individual pores within thin sections. The technique is applicable to native-state and restored-state cores.

Styrene monomer is used to miscibly displace oil and, following solidification, water is removed under vacuum. Then, sites formerly occupied by water are injected with epoxy resin. Fluorescent and non-fluorescent dyes are used in the styrene and epoxy for easy recognition in thin section. Experiments in glass micromodels confirm that these substitutions of styrene for oil and epoxy for water can be accomplished without altering wettability or water-oil distribution within a porous structure. The amount, distribution, and wettability of water and oil within reservoir core provides information useful in understanding water-oil relative permeability and displacement efficiency and is important in assessing production strategies for residual oil.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24

AAPG Member?

Please login with your Member username and password.

Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].