Methods of making and using sulfonated carboxylated polysaccharide gelling agents

Abstract

One embodiment of the present invention provides a method of treating a subterranean formation comprising: providing a treatment fluid comprising a sulfonated polysaccharide gelling agent wherein the sulfonated polysaccharide gelling agent is produced by reacting a cyclic sultone with a polysaccharide; and, introducing the treatment fluid into a portion of a subterranean formation. Another embodiment provides a method of treating a subterranean formation, comprising: providing a treatment fluid comprising a carboxylated polysaccharide gelling agent wherein the carboxylated polysaccharide gelling agent is produced by reacting a polysaccharide with at least one of the following: a cyclic lactone or a cyclic phosphonate acid; and introducing the treatment fluid into a portion of a subterranean formation. Another embodiment provides a method of derivatizing a polysaccharide comprising reacting a polysaccharide with at least one of the following: a cyclic sultone, a cyclic lactone, or a cyclic phosphonate acid.

1 . A method of treating a subterranean formation comprising: 
 providing a treatment fluid comprising a sulfonated polysaccharide gelling agent wherein the sulfonated polysaccharide gelling agent is produced by reacting a cyclic sultone with a polysaccharide; and,    introducing the treatment fluid into a portion of a subterranean formation.    
     
     
         2 . The method of  claim 1  wherein the cyclic sultone comprises at least one of the following: 1,3-propylsultone, 1,4-butylsultone, a derivative of 1,3-propylsultone, a derivative of 1,4-butylsultone, or a derivative of a cyclic sultone.  
     
     
         3 . The method of  claim 1  wherein the cyclic sultone and polysaccharide are reacted under alkaline solid phase conditions.  
     
     
         4 . The method of  claim 1  wherein the cyclic sultone and polysaccharide are reacted under alkaline aqueous conditions.  
     
     
         5 . The method of  claim 1  wherein the treatment fluid further comprises a crosslinking agent and wherein the crosslinking agent comprises at least one of: N,N′-methylenebisacrylamide, boric acid, disodium octaborate tetrahydrate, sodium diborate, a pentaborate, ulexite, colemanite, a compound that can supply zirconium IV ions, a compound that can supply titanium IV ions, an aluminum compound, an antimony compound; a chromium compound; an iron compound; a copper compound; or a zinc compound.  
     
     
         6 . The method of  claim 1  wherein the treatment fluid further comprises a gel stabilizer, gel breaker, fluid loss control additive, clay stabilizer, or bactericide.  
     
     
         7 . The method of  claim 1  wherein the treatment fluid further comprises particulates.  
     
     
         8 . A method of treating a subterranean formation, comprising: 
 providing a treatment fluid comprising a carboxylated polysaccharide gelling agent wherein the carboxylated polysaccharide gelling agent is produced by reacting a polysaccharide with at least one of the following: a cyclic lactone or a cyclic phosphonate acid; and    introducing the treatment fluid into a portion of a subterranean formation.    
     
     
         9 . The method of  claim 8  wherein the cyclic lactone comprises butyrolactone, β-propiolactone, a derivative of butyrolactone, a derivative of β-propiolactone, or a derivative of a cyclic lactone.  
     
     
         10 . The method of  claim 8  wherein the cyclic phosphonate acid comprises 1,2-oxaphospholane, a phosphonate ester, or a derivative of a cyclic phosphonic acid.  
     
     
         11 . The method of  claim 8  wherein the cyclic lactone and polysaccharide are reacted under alkaline solid phase conditions.  
     
     
         12 . The method of  claim 8  wherein the cyclic lactone and polysaccharide are reacted under alkaline aqueous conditions.  
     
     
         13 . The method of  claim 8  wherein the treatment fluid further comprises a crosslinking agent and wherein the crosslinking agent comprises at least one of: N,N′-methylenebisacrylamide, boric acid, disodium octaborate tetrahydrate, sodium diborate, a pentaborate, ulexite, colemanite, a compound that can supply zirconium IV ions, a compound that can supply titanium IV ions, an aluminum compound, an antimony compound; a chromium compound; an iron compound; a copper compound; or a zinc compound.  
     
     
         14 . The method of  claim 8  wherein the treatment fluid further comprises a gel stabilizer, gel breaker, fluid loss control additive, clay stabilizer, or bactericide.  
     
     
         15 . The method of  claim 8  wherein the treatment fluid further comprises particulates.  
     
     
         16 . A method of derivatizing a polysaccharide comprising reacting a polysaccharide with at least one of the following: a cyclic sultone, a cyclic lactone, or a cyclic phosphonate acid.  
     
     
         17 . The method of  claim 16  wherein the cyclic sultone comprises at least one of the following: 1,3-propylsultone, 1,4-butylsultone, a derivative of 1,3-propylsultone, a derivative of 1,4-butylsultone, or a derivative of a cyclic sultone.  
     
     
         18 . The method of  claim 16  wherein the cyclic lactone comprises butyrolactone, β-propiolactone, a derivative of butyrolactone, a derivative of β-propiolactone, or a derivative of a cyclic lactone.  
     
     
         19 . The method of  claim 16  wherein the cyclic phosphonate acid comprises 1,2-oxaphospholane, a phosphonate ester, or a derivative of a cyclic phosphonic acid.  
     
     
         20 . The method of  claim 16  wherein the reaction occurs under either alkaline solid phase conditions or alkaline aqueous conditions.