US2014034322A1PendingUtilityA1

Well servicing fluid containing compressed hydrocarbon gas

Assignee: BAKER HUGHES INCPriority: Aug 13, 2010Filed: Oct 7, 2013Published: Feb 6, 2014
Est. expiryAug 13, 2030(~4.1 yrs left)· nominal 20-yr term from priority
C09K 8/68E21B 43/26C09K 8/52C09K 2208/28C09K 8/82C09K 8/70C09K 8/94C09K 8/64
40
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Claims

Abstract

The present disclosure is directed to a method of servicing a well. The method comprises providing a well servicing fluid. The well servicing fluid is formulated with the following components comprising, at least one friction reducer chosen from polychloroprenes, vinyl acetate polymers, polyalkylene oxides, and polyalphaolefins; and a nonaqueous carrier fluid. The well servicing fluid is introduced into the well.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of servicing a well, the method comprising:
 providing a well servicing fluid formulated with the following components comprising:
 at least one friction reducer chosen from polychloroprenes and vinyl acetate polymers; and 
 a nonaqueous carrier fluid containing compressed hydrocarbon gas; and 
   introducing the well servicing fluid into the well.   
     
     
         2 . The method of  claim 1 , wherein the method further comprises fracturing a well formation by contacting the well formation with the well servicing fluid. 
     
     
         3 . The method of  claim 1 , wherein the well servicing fluid comprises about 5% by weight or less hydrocarbons that are not compressed gas. 
     
     
         4 . The method of  claim 1 , wherein the well servicing fluid further comprises at least one nonsolvent of the friction reducer. 
     
     
         5 . The method of  claim 4 , wherein the at least one nonsolvent is chosen from alcohols, glycol ethers, ketones and esters. 
     
     
         6 . The method of  claim 4 , wherein the at least one nonsolvent comprises a glycol ether and an alkyl alcohol. 
     
     
         7 . The method of  claim 6 , wherein the glycol ether is propylene glycol ether. 
     
     
         8 . The method of  claim 1 , wherein the nonaqueous carrier comprises compressed, liquefied hydrocarbon gas. 
     
     
         9 . The method of  claim 1 , wherein the nonaqueous carrier comprises compressed methane, propane, butane, or natural gas. 
     
     
         10 . The method of  claim 1 , wherein the nonaqueous carrier is in a concentration of 50% by weight or more based on the total weight of the well servicing fluid. 
     
     
         11 . The method of  claim 1 , wherein the concentration of friction reducer ranges from about 0.1 gptg to about 10 gptg, based on the total well servicing fluid. 
     
     
         12 . The method of  claim 1 , wherein the well servicing fluid is formulated to include a hydrocarbon gelling agent. 
     
     
         13 . The method of  claim 12 , wherein the oil gelling agent is chosen from phosphate esters, aluminum soaps and aluminum fatty acid salts. 
     
     
         14 . The method of  claim 1 , wherein the well servicing fluid further comprises a proppant. 
     
     
         15 . The method of  claim 1 , wherein the well servicing fluid is formulated with at least one additional ingredient chosen from viscosifying agents, fluid loss control additives, breakers and high temperature stabilizers. 
     
     
         16 . A method of servicing a well, the method comprising:
 providing a well servicing fluid formulated with the following components comprising:
 at least one friction reducer chosen from polychloroprenes, vinyl acetate polymers, polyalkylene oxides, and polyalphaolefins; 
 a nonaqueous carrier fluid containing compressed hydrocarbon gas; and 
 at least one nonsolvent of the friction reducer; and 
   introducing the well servicing fluid into the well.   
     
     
         17 . The method of  claim 16 , wherein the at least one friction reducer comprises a dispersion of particles in the at least one nonsolvent, the particles being chosen from polychloroprenes, vinyl acetate polymers, polyalkylene oxides, and polyalphaolefins. 
     
     
         18 . The method of  claim 16 , wherein the at least one nonsolvent is chosen from alcohols, glycol ethers, ketones, and esters. 
     
     
         19 . The method of  claim 16 , wherein the at least one nonsolvent comprises a glycol ether and an alkyl alcohol. 
     
     
         20 . The method of  claim 19 , wherein the glycol ether is propylene glycol ether. 
     
     
         21 . A method of servicing a well, the method comprising:
 providing a well servicing fluid formulated with the following components comprising:
 at least one friction reducer chosen from polychloroprenes and vinyl acetate polymers; 
 a nonaqueous carrier fluid containing compressed methane, propane, butane, or natural gas; and 
 at least one nonsolvent of the friction reducer containing a dispersion of particles chosen from the polychloroprenes and vinyl acetate polymers; and 
   introducing the well servicing fluid into the well.

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