Reducing sludging during oil well acidizing

Details Reducing sludging during oil well acidizing Reducing sludging during oil well acidizing

1988-07-22

1989-04-25

Suchfield, George A.

Wells

Processes

Material placed in pores of formation to treat resident...

166307, 252 8553, E21B 4327

Patent

active

048238740

ABSTRACT:
An improved method and composition for reducing the production of sludge when contacting a subterranean formation containing oil which is subject to sludging with an aqueous acid solution. An anti-sludging agent and one or more other additives are combined with the aqueous acid solution along with a dispersing agent which forms the aqueous acid solution and additives into a long-term homogeneous composition.

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