Patent ID: 6705400
Filing Date: 2004-03-16
Classification: C09K,Y10S

Abstract:
A method of forming fractures in a subterranean zone containing resilient proppant particle packs which prevent the production of formation sand and fines with produced fluids and proppant flow-back 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 liquid rubber component comprised of a rubber latex and a rubber latex stabilizing surfactant; (d) providing a source of dry proppant particles; (e) providing a gelled liquid fracturing fluid; (f) pumping said gelled liquid fracturing fluid into said subterranean zone to form said fractures therein and to place hardenable resin composition coated proppant particles therein; (g) as said fractures are formed in step (f), mixing said liquid hardenable resin component with said liquid hardening agent component and said liquid rubber component to form a liquid hardenable resin composition; (h) coating said liquid hardenable resin composition produced in step (g) onto dry proppant particles conveyed from said source thereof to form hardenable resin composition coated proppant particles; (i) mixing said hardenable resin composition coated proppant particles produced in step (h) with said fracturing fluid pumped in accordance with step (f) whereby said hardenable resin composition coated proppant particles are suspended therein; (j) terminating steps (f), (g), (h) and (i) when said resin composition coated proppant particles have been placed in said fractures; and (k) allowing said hardenable resin composition on said hardenable resin composition coated proppant particles to harden and consolidate said proppant particles into resilient permeable packs which prevent the production of formation sand and fines with produced fluids and proppant flow-back.