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| pdf = http://archives.datapages.com/data/specpubs/methodo1/images/a095/a0950001/0200/02490.pdf
| pdf = http://archives.datapages.com/data/specpubs/methodo1/images/a095/a0950001/0200/02490.pdf
}}
}}
Near wellbore [[permeability]] reduction, that is, formation damage, can result from the interaction of the reservoir rock with extraneous drilling, completion, [[stimulation]], or enhanced recovery fluids. Rockifluid reaction can occur from any of the following operations:
Near wellbore [[permeability]] reduction, that is, formation damage, can result from the interaction of the reservoir rock with extraneous drilling, completion, [[stimulation]], or enhanced recovery fluids. Rock-fluid reaction can occur from any of the following operations:
# Mixing of formation water with extraneous brine in which the total cation concentration is below a critical salinity value
# Mixing of formation water with extraneous brine in which the total cation concentration is below a critical salinity value
# Displacement of one brine by another whose divalent cation concentration is lower than the level required to prevent clay dispersion
# Displacement of one brine by another whose divalent cation concentration is lower than the level required to prevent clay dispersion