Methods for coating particulates with tackifying compounds

Abstract

At least one method is provided comprising: providing a tackifying compound and at least one surfactant; mixing the surfactant with the tackifying compound to form a tackifying compound surfactant mixture; coating the tackifying compound surfactant mixture onto particulates to form coated particulates; mixing the coated particulates into a treatment fluid; and placing the treatment fluid into a subterranean formation.

1 . A method comprising: 
 providing a tackifying compound having a tackiness and at least one surfactant;    mixing the surfactant with the tackifying compound to form a tackifying compound surfactant mixture, wherein the tackiness of the tackifying compound in the tackifying compound surfactant mixture is at least temporarily reduced;    coating the tackifying compound surfactant mixture onto particulates to form coated particulates;    mixing the coated particulates into a treatment fluid; and    placing the treatment fluid into a subterranean formation.    
   
   
       2 . The method of  claim 1  wherein the tackifying compound is a non-aqueous tackifying compound.  
   
   
       3 . The method of  claim 2  wherein the non-aqueous tackifying compound comprises polyamides that are liquids or in solution at the temperature of the subterranean formation.  
   
   
       4 . The method of  claim 2  wherein the non-aqueous tackifying compound is selected from the group consisting of: a polyester, a polycarbonate, polycarbamate, a natural resin, and shellac.  
   
   
       5 . The method of  claim 2  wherein the non-aqueous tackifying compound comprises a multifunctional material capable of reacting with the non-aqueous tackifying compound to form a hardened coating.  
   
   
       6 . The method of  claim 5  wherein the multifunctional material is selected from the group consisting of: an aldehyde; a dialdehyde; a glutaraldehyde; a hemiacetal releasing compound; an aldehyde releasing compound; a diacid halide; a dihalide; a dichloride; a dibromide; a polyacid anhydride; citric acid; an epoxide; a furfuraldehyde; a glutaraldehyde; an aldehyde condensate; a silyl-modified polyamide compound; and combinations thereof.  
   
   
       7 . The method of  claim 5  wherein the multifunctional material is mixed with the tackifying compound in an amount of from about 0.01% to about 50% by weight of the tackifying compound.  
   
   
       8 . The method of  claim 1  wherein the surfactant is capable of binding active sites in the tackifying compound so as to reduce the tackiness of the tackifying compound.  
   
   
       9 . The method of  claim 1  wherein the surfactant is selected from the group consisting of: an ethyoxylated lauryl alcohol; an ethoxylated nonylphenol; an ethoxylated nonylphenol phosphate ester; a cationic surfactant; a nonionic surfactant; an alkyl phosphonate surfactant; an alkylamidobetaine; cocoamidopropyl betaine; alpha-olefin sulfonate; trimethyltallowammonium chloride; C 8  to C 22  alkylethoxylate sulfate; trimethylcocoammonium chloride; and combinations thereof.  
   
   
       10 . The method of  claim 1  wherein the surfactant is selected from the group consisting of: an alcohol oxyalkylate; an alkyl phenol oxyalkylate; a nonionic ester; a sorbitan ester; an alkoxylate of a sorbitan ester; a castor oil alkoxylate; a fatty acid alkoxylate; a lauryl alcohol alkoxylate; a nonylphenol alkoxylate; an octylphenol alkoxylate; a tridecyl alcohol alkoxylate; mannide monooleate; sorbitan isostearate; sorbitan laurate; sorbitan monoisostearate; sorbitan monolaurate; sorbitan monooleate; sorbitan monopalmitate; sorbitan monostearate; sorbitan oleate; sorbitan palmitate; sorbitan sesquioleate; sorbitan stearate; sorbitan trioleate; sorbitan tristearate; and sorbitan monooleate.  
   
   
       11 . The method of  claim 1  wherein the surfactant is present in an amount in the range from about 0.1% to 10% by weight.  
   
   
       12 . A method comprising: 
 providing a tackifying compound surfactant mixture comprising a tackifying compound having a tackiness and a surfactant, wherein the tackiness of the tackifying compound is at least temporarily reduced; and    coating at least a plurality of particulates with the tackifying compound surfactant mixture to produce a plurality of coated particulates.    
   
   
       13 . The method of  claim 12  wherein the tackifying compound comprises polyamides that are liquids or in solution at the temperature of the subterranean formation.  
   
   
       14 . The method of  claim 12  wherein the tackifying compound is selected from the group consisting of: a polyester, a polycarbonate, polycarbamate, a natural resin, and shellac.  
   
   
       15 . The method of  claim 12  wherein the tackifying compound comprises a multifunctional material capable of reacting with the non-aqueous tackifying compound to form a hardened coating.  
   
   
       16 . The method of  claim 15  wherein the multifunctional material is selected from the group consisting of: an aldehyde; a dialdehyde; glutaraldehyde; a hemiacetal releasing compound; an aldehyde releasing compound; a diacid halide; a dihalide; a dichloride; a dibromide; a polyacid anhydride; citric acid; an epoxide; a furfuraldehyde; a glutaraldehyde; an aldehyde condensate; a silyl-modified polyamide compound; and combinations thereof.  
   
   
       17 . The method of  claim 12  wherein the surfactant is selected from the group consisting of: an ethyoxylated lauryl alcohol; an ethoxylated nonylphenol; an ethoxylated nonylphenol phosphate ester; a cationic surfactant; a nonionic surfactant; an alkyl phosphonate surfactant; an alkylamidobetaine; cocoamidopropyl betaine; alpha-olefin sulfonate; trimethyltallowammonium chloride; C 8  to C 22  alkylethoxylate sulfate; trimethylcocoammonium chloride; and combinations thereof.  
   
   
       18 . The method of  claim 12  wherein the surfactant is selected from the group consisting of: an alcohol oxyalkylate; an alkyl phenol oxyalkylate; a nonionic ester; a sorbitan ester; an alkoxylate of a sorbitan ester; a castor oil alkoxylate; a fatty acid alkoxylate; a lauryl alcohol alkoxylate; a nonylphenol alkoxylate; an octylphenol alkoxylate; a tridecyl alcohol alkoxylate; mannide monooleate; sorbitan isostearate; sorbitan laurate; sorbitan monoisostearate; sorbitan monolaurate; sorbitan monooleate; sorbitan monopalmitate; sorbitan monostearate; sorbitan oleate; sorbitan palmitate; sorbitan sesquioleate; sorbitan stearate; sorbitan trioleate; sorbitan tristearate; and sorbitan monooleate.  
   
   
       19 . A method comprising: 
 providing at least a plurality of particulates that have been coated with a tackifying compound surfactant mixture comprising a tackifying compound having a tackiness and a surfactant, wherein the tackiness of the tackifying compound is at least temporarily reduced, to produce a plurality of coated particulates;    suspending the coated particulates in a fracturing fluid or a gravel pack fluid;    placing the fracturing fluid or the gravel pack fluid in a subterranean formation; and    performing a fracturing or a gravel packing operation.    
   
   
       20 . The method of  claim 19  wherein: 
 the tackifying compound is selected from the group consisting of: a polyamide; a polyester; a polycarbonate; polycarbamate; a natural resin; shellac; a tackifying compound that comprises a multifunctional material that is selected from the following group: an aldehyde; a dialdehyde; glutaraldehyde; a hemiacetal releasing compound; an aldehyde releasing compound; a diacid halide; a dihalide; a dichloride; a dibromide; a polyacid anhydride; citric acid; an epoxide; a furfuraldehyde; a glutaraldehyde; an aldehyde condensate; a silyl-modified polyamide compound; and combinations thereof; and    the surfactant is selected from the group consisting of: an ethyoxylated lauryl alcohol; an ethoxylated nonylphenol; an ethoxylated nonylphenol phosphate ester; a cationic surfactant; a nonionic surfactant; an alkyl phosphonate surfactant; an alkylamidobetaine; cocoamidopropyl betaine; alpha-olefin sulfonate; trimethyltallowammonium chloride; C 8  to C 22  alkylethoxylate sulfate; trimethylcocoammonium chloride; an alcohol oxyalkylate; an alkyl phenol oxyalkylate; a nonionic ester; a sorbitan ester; an alkoxylate of a sorbitan ester; a castor oil alkoxylate; a fatty acid alkoxylate; a lauryl alcohol alkoxylate; a nonylphenol alkoxylate; an octylphenol alkoxylate; a tridecyl alcohol alkoxylate; mannide monooleate; sorbitan isostearate; sorbitan laurate; sorbitan monoisostearate; sorbitan monolaurate; sorbitan monooleate; sorbitan monopalmitate; sorbitan monostearate; sorbitan oleate; sorbitan palmitate; sorbitan sesquioleate; sorbitan stearate; sorbitan trioleate; sorbitan tristearate; sorbitan monooleate; and combinations thereof.