[EN] HIGH TEMPERATURE POLYMER GELS FOR WELL TREATMENTS AND THEIR USE<br/>[FR] GELS POLYMÈRES HAUTE TEMPÉRATURE POUR LE TRAITEMENT DE PUITS ET LEUR UTILISATION
申请人:SCHLUMBERGER CA LTD
公开号:WO2011161581A1
公开(公告)日:2011-12-29
A composition for treating a subterranean formation is formed from water, a water-soluble polymer and a crosslinking system. The crosslinking system utilizes 1) primary crosslinking agent of at least one of a dialdehyde benzene source, a dioxane, and a trioxane, 2) a secondary low temperature organic crosslinking agent that generates aldehyde, and 3) a phenol source. The crosslinking system provides the composition a delayed gel time of about 2 to about 20 hours at temperatures of about 250°F (121°C) or higher. A method of treating a subterranean formation penetrated by a wellbore is also accomplished by forming a treatment fluid from the composition and introducing the treatment fluid into the formation through the wellbore.