US2006260808A1PendingUtilityA1

Methods of treating particulates and use in subterranean formations

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Individually held — no corporate assignee on recordPriority: May 20, 2005Filed: May 20, 2005Published: Nov 23, 2006
Est. expiryMay 20, 2025(expired)· nominal 20-yr term from priority
Inventors:Jim D. WeaverBilly SlabaughRobert E. Hanes, Jr.Diederik Van BatenburgMark ParkerMatthew E. BlauchNeil A. StegentPhilip D. NguyenThomas D. Welton
Y10S507/924C09K 8/80C09K 8/68
34
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Claims

Abstract

Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of particulates, at least one of which comprises a mineral surface; providing a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate; and allowing the surface-treating reagent modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate. In other embodiments, the methods comprise the use of particulates comprising a modified mineral surface in fluids introduced into subterranean formations.

Claims

exact text as granted — not AI-modified
1 . A method comprising: 
 providing a plurality of particulates, at least one of which comprises a mineral surface;    providing a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate; and    allowing the surface-treating reagent to modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate.    
     
     
         2 . The method of  claim 1  wherein the surface-treating reagent comprises a stress-activated reactivity-reducing reagent.  
     
     
         3 . The method of  claim 1  wherein the surface-treating reagent comprises a stress-activated reactivity-increasing reagent.  
     
     
         4 . The method of  claim 1  wherein the surface-treating reagent comprises a reagent for subsequent reactivity.  
     
     
         5 . The method of  claim 1  wherein the surface-treating reagent comprises at least one of the following: a vinyl monomer; a diene; a keto ester; an amine; a substituted amine hydrochloride; an amide; an alcohol; an organosilane; an organotitaniate; an organozirconate; a divalent metal cation; a trivalent metal cation; a tetravalent metal cation; an ammonium halide; a quaternary ammonium halide; an ammonium salt of an inorganic acid; an ammonium salt of a carboxylic acid; an oligomeric material; a monomeric material; an oil-wetting compound; a hydrolysable ester; or a derivative thereof.  
     
     
         6 . The method of  claim 1  wherein the surface-treating reagent comprises a resin and/or tackifying agent.  
     
     
         7 . The method of  claim 1  wherein the surface-treating reagent comprises one or more polyamides.  
     
     
         8 . The method of  claim 1  wherein the surface-treating reagent comprises a surfactant.  
     
     
         9 . The method of  claim 1  wherein the surface-treating reagent is present in an amount in the range of from about 0.003 pounds to about 0.5 pounds per square foot of surface area of the portion of mineral surface of the particulates.  
     
     
         10 . The method of  claim 1  wherein the particulates comprise at least one of the following: sand; bauxite; a fibrous material; a ceramic material; a glass material; a polymer material; a Teflon® material; nut shell pieces; seed shell pieces; fruit pit pieces; wood; composite particulates; or a derivative thereof.  
     
     
         11 . A method of treating a subterranean formation comprising: 
 providing a treatment fluid that comprises 
 a base fluid,  
 a plurality of particulates, at least one of which comprises a mineral surface, and  
 a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate;  
   allowing the surface-treating reagent to modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate; and    introducing the treatment fluid into the subterranean formation.    
     
     
         12 . The method of  claim 11  wherein the surface-treating reagent comprises a stress-activated reactivity-reducing reagent.  
     
     
         13 . The method of  claim 11  wherein the surface-treating reagent comprises a stress-activated reactivity-increasing reagent.  
     
     
         14 . The method of  claim 11  wherein the surface-treating reagent comprises a reagent for subsequent reactivity.  
     
     
         15 . The method of  claim 11  wherein allowing the surface-treating reagent to modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate occurs prior to, during, or subsequent to introducing the treatment fluid into the subterranean formation.  
     
     
         16 . The method of  claim 11  wherein introducing the treatment fluid into the subterranean formation comprises introducing the treatment fluid into the subterreanean formation at or above a pressure sufficient to create or enhance one or more fractures in a portion of the subterranean formation.  
     
     
         17 . The method of  claim 11  wherein introducing the treatment fluid into the subterranean formation is part of a drilling operation.  
     
     
         18 . The method of  claim 11  wherein introducing the treatment fluid into the subterranean formation is part of a gravel-packing operation.  
     
     
         19 . The method of  claim 11  wherein introducing the treatment fluid into the subterranean formation is part of a perforating operation.  
     
     
         20 . The method of  claim 11  wherein the surface-treating reagent comprises a resin and/or tackifying agent.  
     
     
         21 . The method of  claim 11  wherein the surface-treating reagent comprises one or more polyamides.  
     
     
         22 . The method of  claim 11  wherein the surface-treating reagent comprises a surfactant.  
     
     
         23 . A method of treating a subterranean formation comprising: 
 providing a treatment fluid that comprises 
 a base fluid, and  
 a plurality of particulates, at least one of which comprises a modified mineral surface; and  
   introducing the treatment fluid into the subterranean formation.    
     
     
         24 . The method of  claim 23  wherein at least a portion of the mineral surface has been modified by a surface-treating reagent so as to increase the tendency of the minerals resident on that surface to undergo one or more chemical reactions.  
     
     
         25 . The method of  claim 23  wherein introducing the treatment fluid into the subterranean formation comprises introducing the treatment fluid into the subterreanean formation at or above a pressure sufficient to create or enhance one or more fractures in a portion of the subterranean formation.  
     
     
         26 . The method of  claim 23  wherein the surface-treating reagent comprises a resin and/or tackifying agent.  
     
     
         27 . The method of  claim 23  wherein the surface-treating reagent comprises one or more polyamides.  
     
     
         28 . The method of  claim 23  wherein the surface-treating reagent comprises a surfactant.

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