Patent ID: 6725931
Filing Date: 2004-04-27
Classification: C09K,E21B

Abstract:
A method of consolidating proppant and controlling fines in one or more fractures formed in a subterranean formation comprising the steps of:(a) providing a liquid hardenable resin component comprised of a hardenable resin; (b) providing a liquid hardening agent component comprised of a hardening agent; (c) providing a source of dry proppant particles; (d) providing a gelled liquid fracturing fluid; (e) pumping said gelled liquid fracturing fluid into said subterranean formation to form said one or more fractures therein and to place proppant particles in said fractures; (f) mixing said liquid hardenable resin component with said liquid hardening agent component in amounts that form a liquid hardenable resin composition that remains tacky after hardening; (g) coating said liquid hardenable resin composition formed in step (f) onto said dry proppant particles conveyed from said source thereof to form hardenable resin composition coated proppant particles; (h) mixing said hardenable resin composition coated proppant particles produced in step (g) with said fracturing fluid pumped in accordance with step (e) whereby said hardenable resin composition coated proppant particles are suspended therein; (i) terminating steps (e), (f), (g) and (h) when said resin composition coated proppant particles have been placed in said one or more fractures; and (j) allowing said hardenable resin composition on said resin composition coated proppant particles to harden and weakly consolidate said proppant particles into one or more permeable proppant packs while remaining tacky so that fine solid formation particles carried to said permeable proppant packs by produced formation fluids stick to said permeable proppant packs.