Wellbore servicing compositions and methods of making and using same

Abstract

A method of servicing a wellbore comprising identifying lost circulation zone within a wellbore; and placing in the wellbore a composition comprising a wax and a water-based mud wherein placement of the composition reduces or prevents a loss of fluids to the lost circulation zone. A wellbore servicing fluid comprising a water-based mud, a sized calcium carbonate particle and a wax.

What is claimed is: 
     
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         14 . (canceled) 
     
     
         15 . A wellbore servicing fluid comprising a water-based mud, a sized calcium carbonate particle and a wax. 
     
     
         16 . The fluid of  claim 15  wherein the wax comprises an oxidized polyethylene wax, a blend of oxidized polyethylene waxes, an oxidized polypropylene wax, a blend of oxidized polypropylene waxes or combinations thereof. 
     
     
         17 . The fluid of  claim 15  wherein the wax has a melting point of from about 190° F. to about 500° F. 
     
     
         18 . The fluid of  claim 15  further comprising a lubricant. 
     
     
         19 . The fluid of  claim 15  wherein the wax is present in an amount of from about 5 lb/bbl to about 50 lb/bbl. 
     
     
         20 . The fluid of  claim 15  wherein the sized calcium carbonate is present in the composition in an amount of from about 0 to about 90 lb/bbl. 
     
     
         21 . The fluid of  claim 15  wherein the wax comprises a natural wax, a synthetic wax, or combinations thereof. 
     
     
         22 . The fluid of  claim 15  wherein the wax is an oxidized wax. 
     
     
         23 . The fluid of  claim 15  wherein the wax has a saponification number of from about 0 to about 150 mg KOH/g. 
     
     
         24 . The fluid of  claim 15  wherein the wax has an acid number of from about 0 to about 60 mg KOH/g. 
     
     
         25 . The fluid of  claim 15  wherein the wax has an oil swellability of less than about 50% by volume. 
     
     
         26 . The fluid of  claim 15  wherein the wax has a softening point of greater than about 200° F. 
     
     
         27 . The fluid of  claim 15  further comprises a bridging agent. 
     
     
         28 . The fluid of  claim 27  wherein the bridging agent comprises a sized calcium carbonate. 
     
     
         29 . The fluid of  claim 27  wherein the bridging agent is present in the fluid in an amount of from about 0 to about 90 lb/bbl. 
     
     
         30 . The fluid of  claim 15  wherein the wax has a needle penetration at 77° F. of equal to or less than about 5 mm. 
     
     
         31 . The fluid of  claim 15  wherein the wax has a viscosity at 240° F. of less than about 50 centipoise (cps). 
     
     
         32 . The fluid of  claim 15  wherein the wax has a viscosity at 300° F. of from about 200 cps to about 400 cps.