METHOD TO CONSOLIDATE SOLID MATERIALS DURING SUBTERRANEAN TREATMENT OPERATIONS

摘要

Compositions include (1) aggregating compositions capable of forming deformable partial or complete coatings on formation surfaces, formation particle surfaces, downhole fluid solid surfaces, and/or proppant surfaces, where the coatings increase aggregation and/or agglomeration propensities of the particles and surfaces to form particles clusters or pillars having deformable coatings, and (2) aggregation stabilizing and/or strengthening compositions capable of altering properties of the coated clusters or pillars to form consolidated, stabilized, and/or strengthened clusters or pillars. Methods for stabilizing aggregated particle clusters or pillars include (1) treating the particles with an aggregating composition to form aggregated clusters or pillars and (2) treating the aggregated particle clusters or pillars with a stabilizing or strengthening composition to form consolidated, stabilized, and/or strengthened clusters or pillars.

主权项

1. A composition comprising:
(1) zeta potential altering or aggregating composition capable of forming deformable partial or complete coatings on formation surfaces, formation particle surfaces, downhole fluid solid surfaces, and/or proppant surfaces, where the coatings increase aggregation and/or agglomeration propensities of the particles and surfaces to form particles clusters or pillars having deformable coatings, and (2) aggregation stabilizing and/or strengthening compositions capable of altering properties of the coated clusters or pillars to form consolidated, stabilized, and/or strengthened clusters or pillars, where the stabilized and/or strengthening proppant materials may be used in fracturing applications, frac pack applications, slick water applications, sand pack applications, formation consolidation application for consolidating unconsolidated or weakly consolidated formations, or any other application where proppant having a strengthened zeta potential altering coating (partial or complete) would be applicable, where the aggregating composition and coating crosslinking composition may be added to the treating fluids at any time during the treatments and alone or in combination, provided that the coating crosslinking compositions is used after the zeta potential altering compositions or after the injection of proppant treated with the zeta potential altering compositions or where coating composition is intimately mixed with zeta altering composition and consolidation is delayed activated by either heat or time.