[EN] PREVENTION OF SLUDGE FORMATION DURING ACIDIZING PROCEDURES<br/>[FR] PRÉVENTION DE LA FORMATION DE BOUE PENDANT DES PROCÉDURES D'ACIDIFICATION
申请人:ECOLAB USA INC
公开号:WO2014149306A1
公开(公告)日:2014-09-25
The present disclosure provides chemical compositions useful for minimizing or preventing the precipitation of sludge, such as asphaltenes, maltenes, or similar asphaltic components, during an acidizing treatment. Methods for preventing or minimizing sludge formation are also disclosed. The anti-sludge compositions can be added to an aqueous acidic solution before injecting the solution into a well for treatment. The compositions can include a formulated dodecylbenzene sulfonic acid, a cationic surfactant, a corrosion inhibitor, and an iron reducing agent, in addition to other additives.