# US 2014/0190697 A1 · Single Component Resin Systems and Methods Relating Thereto > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190697 A1 - Document ID: US20140190697A1 - Status: Published application - Kind: A1 - Application number: 13/734,100 - Filed: 2013-01-04 - Published: 2014-07-10 - Earliest claimed: 2013-01-04 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Tingji Tang - Web page: https://patentgrep.com/patent/US20140190697A1 ## CPC - E21B 43/267: reinforcing fractures by propping - C09K 8/565: Oil-based compositions - C09K 8/572: {containing inorganic compounds} - C09K 8/575: containing organic compounds - C09K 8/64: Oil-based compositions - C09K 8/665: {containing inorganic compounds (proppants C09K8/80)} - C09K 8/68: containing organic compounds - C09K 8/805: {Coated proppants} - E21B 2200/08: Down-hole devices using materials which decompose under well-bore conditions - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE ## Abstract A method of use of single component resins to strengthen structural features in subterranean formations includes providing particulates, a carrier fluid, a curable resin and a latent curing agent. The curable resin is not cured by the latent curing agent at room temperature, standard pressure or neutral pH. The particulates are coated with the curable resin and the latent curing agent to create resin-coated particulates. A slurry of resin-coated particulates is created in the carrier fluid, and placed into a portion of a subterranean formation and allowing the latent curing agent to cure the curable resin to form cured, resin-coated particulates. ## Claims ### Claim 1 A method comprising: providing particulates, a carrier fluid, a curable resin and a latent curing agent, wherein the curable resin is not cured by the latent curing agent at room temperature, standard pressure or neutral pH; coating the particulates with the curable resin and the latent curing agent to create resin and agent coated particulates; creating a slurry of resin and agent coated particulates in the carrier fluid; and placing the slurry into a portion of a subterranean formation and allowing the latent curing agent to cure the curable resin to form cured, resin-coated particulates. ### Claim 2 (depends on 1) The method of claim 1, wherein the curable resin comprises one selected from the group consisting of epoxy based resins, novolak resins, polyepoxide resins, phenol-aldehyde resins, urea-aldehyde resins, urethane resins, phenolic resins, furan resins, furan/furfuryl alcohol resins, phenolic/latex resins, phenol formaldehyde resins, polyester resins and hybrids and copolymers thereof, polyurethane resins and hybrids and copolymers thereof, acrylate resins, silicon-based resins, and mixtures thereof. ### Claim 3 (depends on 1) The method of claim 1, wherein the latent curing agent comprises one selected from the group consisting of Lewis acid-amine complexes, dicyandiamides, urea-based complexes, thiourea based complexes and organic-acid hydrazides. ### Claim 4 (depends on 1) The method of claim 1, wherein the curable resin and/or latent curing agent comprise a compound having a structure according to general formula (I): wherein L is a leaving group, R is a cyclic or acyclic alkyl or alkenyl group of 1 to 20 carbon atoms, and n=1 or 2. ### Claim 5 (depends on 4) The method of claim 4, wherein the compound of general formula (I) comprises: wherein R, R′ and R″ may be the same or different and comprise a cyclic or acyclic alkyl or alkenyl group of 1 to 20 carbon atoms. ### Claim 6 (depends on 1) The method of claim 1, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to a temperature of about 120° F. or greater to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 7 (depends on 1) The method of claim 1, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to a pressure of greater than 1 atmosphere to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 8 (depends on 1) The method of claim 1, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to acidic conditions to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 9 (depends on 1) The method of claim 1, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to basic conditions to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 10 A method comprising: placing a flush fluid comprising a carrier fluid, a curable resin and a latent curing agent, wherein the curable resin is not cured by the latent curing agent at room temperature, standard pressure or neutral pH, into a portion of a subterranean formation comprising particulates and allowing the curable resin and latent curing agent to coat at least a portion of the particulates; and allowing the latent curing agent to cure the curable resin on the particulate surfaces within the subterranean formation to form cured, resin-coated particulates. ### Claim 11 (depends on 10) The method of claim 10, wherein the curable resin comprises one selected from the group consisting of epoxy based resins, novolak resins, polyepoxide resins, phenol-aldehyde resins, urea-aldehyde resins, urethane resins, phenolic resins, furan resins, furan/furfuryl alcohol resins, phenolic/latex resins, phenol formaldehyde resins, polyester resins and hybrids and copolymers thereof, polyurethane resins and hybrids and copolymers thereof, acrylate resins, silicon-based resins, and mixtures thereof. ### Claim 12 (depends on 10) The method of claim 10, wherein the latent curing agent comprises one selected from the group consisting of Lewis acid-amine complexes, dicyandiamides, urea-based complexes, thiourea based complexes and organic-acid hydrazides. ### Claim 13 (depends on 10) The method of claim 10, wherein the curable resin and/or latent curing agent comprise a compound having a structure according to general formula (I): wherein L is a leaving group, R is a cyclic or acyclic alkyl or alkenyl group of 1 to 20 carbon atoms, and n=1 or 2. ### Claim 14 (depends on 13) The method of claim 13, wherein the compound of general formula (I) comprises: wherein R, R′ and R″ may be the same or different and comprise a cyclic or acyclic alkyl or alkenyl group of 1 to 20 carbon atoms. ### Claim 15 (depends on 10) The method of claim 10, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to a temperature of about 120° F. or greater to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 16 (depends on 10) The method of claim 10, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to a pressure of greater than 1 atmosphere to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 17 (depends on 10) The method of claim 10, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to acidic conditions to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 18 (depends on 10) The method of claim 10, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to basic conditions to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 19 A method comprising: introducing a fracturing fluid containing proppant into a subterranean formation at a pressure sufficient to create or enhance at least one fracture therein; providing a treatment fluid comprising a carrier fluid, a curable resin and a latent curing agent, wherein the curable resin is not cured by the latent curing agent at room temperature, standard pressure or neutral pH; introducing the treatment fluid into the at least one fracture of the subterranean formation; and allowing the latent curing agent to cure the curable resin, thereby forming a resinous proppant pack therein. ### Claim 20 (depends on 19) The method of claim 19, wherein the curable resin comprises one selected from the group consisting of epoxy based resins, novolak resins, polyepoxide resins, phenol-aldehyde resins, urea-aldehyde resins, urethane resins, phenolic resins, furan resins, furan/furfuryl alcohol resins, phenolic/latex resins, phenol formaldehyde resins, polyester resins and hybrids and copolymers thereof, polyurethane resins and hybrids and copolymers thereof, acrylate resins, silicon-based resins, and mixtures thereof. ### Claim 21 (depends on 19) The method of claim 19, wherein the latent curing agent comprises one selected from the group consisting of Lewis acid-amine complexes, dicyandiamides, urea-based complexes, thiourea based complexes and organic-acid hydrazides. ### Claim 22 (depends on 19) The method of claim 19, wherein the curable resin and/or latent curing agent comprise a compound having a structure according to general formula (I): wherein L is a leaving group, R is a cyclic or acyclic alkyl or alkenyl group of 1 to 20 carbon atoms, and n=1 or 2. ### Claim 23 (depends on 22) The method of claim 22, wherein the compound of general formula (I) comprises: wherein R, R′ and R″ may be the same or different and comprise a cyclic or acyclic alkyl or alkenyl group of 1 to 20 carbon atoms. ### Claim 24 (depends on 19) The method of claim 19, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to a temperature of about 120° F. or greater to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 25 (depends on 19) The method of claim 19, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to a pressure of greater than 1 atmosphere to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 26 (depends on 19) The method of claim 19, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to acidic conditions to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates. ### Claim 27 (depends on 19) The method of claim 19, wherein when the slurry is placed into a portion of a subterranean formation, the slurry is exposed to basic conditions to activate the latent curing agent to cure the curable resin to form the cured, resin-coated particulates.