Phenolic resin based supramolecular aggregates -novel in-depth profile modifier for oil reservoir
ADVANCES IN CHEMISTRY RESEARCH II, PTS 1-3(2012)
Abstract
The aggregates size, plugging and propagation properties for supramolecular aggregates based on phenol-formaldehyde resin have been investigated by measurement of hydrodynamic diameter, filtration with nuclear pore film and plugging test with sand-pack core. The results show at the condition tested, supramolecular aggreates have an average hydrodynamic diameter of about 450 nm, and can sufficiently plug 1.2 mu m-nuclear pore film. The aggregates can plug, propagate, replug and repropagate in porous media, which is an obligatory property of an in-depth profile modifier for oil reservoir.
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Key words
Phenol-formaldehyde resin,Supramolecular aggregates,In-depth profile modifier,Plugging,Propagation
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