Polymeric well completion and remedial compositions and methods

Details Polymeric well completion and remedial compositions and methods Polymeric well completion and remedial compositions and methods

E - Fixed Constructions

21

B

E21B 33/13 (2006.01) C09K 8/50 (2006.01) C09K 8/518 (2006.01) E21B 33/05 (2006.01)

Patent

CA 2237233

Polymeric well completion and remedial compositions which form highly pliable impermeable masses of desired rigidity and methods of using the compositions are provided. The compositions are basically comprised of water, a water soluble polymerizable monomer, a polymerization initiator and an oxygen scavenging agent. The composition is usually foamed and contains a gelling agent and a solid filler material to increase the density and/or rigidity of the impermeable mass formed.

Des compositions polymériques pour la complétion des puits et des compositions correctives qui forment des masses imperméables très souples ayant la rigidité recherchée et des méthodes d'utilisation des compositions font l'objet de la présente divulgation. Les compositions comprennent essentiellement de l'eau, un monomère polymérisable hydrosoluble, un initiateur de polymérisation et un désoxygénant. La composition est en général foamée et renferme un agent gélifiant et une matière de remplissage solide afin d'augmenter la densité et/ou la rigidité de la masse imperméable formée.

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