Downhole Tool

Abstract

A method and apparatus for a downhole tool including a slip assembly having a plurality of slips configured to engage a downhole surface. The slip assembly includes a plurality of slip segments. Each slip segment includes a slip body, a plurality of profile elements coupled to the slip body, and a first coating disposed on the plurality of profile elements, wherein the first coating is formed from a plasma electrolytic oxidation treatment. The first coating and the plurality of profile elements form a plurality of gripping elements configured to grip the downhole surface.

What is claimed is: 
     
         1 . A downhole tool, comprising:
 a cone member; and   a slip assembly having a plurality of slip segments, the slip segments configured to move along the cone member into engagement with a downhole surface, wherein each slip segment includes:
 a slip body; 
 a plurality of degradable profile elements coupled to the slip body; and 
 a first coating disposed on the plurality of profile elements, wherein the first coating is formed from a plasma electrolytic oxidation treatment; 
 wherein the first coating and profile elements form a plurality of gripping elements configured to grip the downhole tubular. 
   
     
     
         2 . The downhole tool of  claim 1 , wherein the slip body has a plurality of teeth disposed on a surface opposite of the plurality of profile elements, wherein the plurality of teeth are configured to engage with a plurality of teeth of the cone member. 
     
     
         3 . The downhole tool of  claim 1 , wherein the slip body further includes:
 a pocket;   a slip insert disposed in the pocket, wherein the slip insert includes the gripping elements.   
     
     
         4 . The downhole tool of  claim 3 , wherein the slip body is formed from a degradable polymer and the slip insert is formed from either an aluminum or magnesium alloy. 
     
     
         5 . The downhole tool of  claim 3 , wherein the slip insert has a lower surface opposite the engagement surface, the lower surface including a plurality of teeth configured to engage with a plurality of teeth of the cone member, wherein the teeth of the slip insert are composed of a plurality of second profile elements with a second coating disposed thereon, wherein the second coating formed from the plasma electrolytic oxidation treatment and. 
     
     
         6 . The downhole tool of  claim 3 , wherein the profile elements are wickers. 
     
     
         7 . The downhole tool of  claim 3 , wherein the profile elements are attached to the slip insert. 
     
     
         8 . The downhole tool of  claim 1 , wherein the profile elements are formed from a magnesium alloy. 
     
     
         9 . A downhole tool, comprising:
 a slip assembly having a plurality of slips configured to engage a downhole surface, the slip assembly including:   a plurality of slip segments, wherein each slip segment includes:
 a slip body; 
 a plurality of profile elements coupled to the slip body; and 
 a first coating disposed on the plurality of profile elements, wherein the first coating is formed from a plasma electrolytic oxidation treatment; 
 wherein the first coating and the plurality of profile elements form a plurality of gripping elements configured to grip the downhole surface. 
   
     
     
         10 . The downhole tool of  claim 9 , wherein the slip body is formed from a degradable material. 
     
     
         11 . The downhole tool of  claim 9 , wherein the slip body further includes:
 a pocket;   a slip insert disposed in the pocket, wherein the slip insert includes the plurality of gripping elements.   
     
     
         12 . The downhole tool of  claim 11 , wherein the slip body is formed from a degradable polymer and the slip insert is formed from either an aluminum or magnesium alloy. 
     
     
         13 . The downhole tool of  claim 11 , wherein the slip insert has a lower surface opposite the engagement surface, the lower surface including a plurality of teeth configured to engage with a plurality of teeth of a cone member, wherein the teeth of the slip insert are composed of a plurality of second profile elements with a second coating disposed thereon, wherein the second coating formed from the plasma electrolytic oxidation treatment and. 
     
     
         14 . The downhole tool of  claim 9 , wherein the profile elements are formed from a degradable material. 
     
     
         15 . The downhole tool of  claim 9 , wherein the profile elements are a plurality of non-dissolvable buttons. 
     
     
         16 . A method of using a downhole tool, comprising:
 deploying a downhole tool into a downhole tubular, the downhole tool including a slip assembly, the slip assembly including:
 a plurality of slip segments having a coating formed from a plasma electrolytic oxidation treatment, the coating configured to grip the downhole tubular; and 
   activating the downhole tool to engage the plurality of slip segments with the downhole tubular, wherein the coating grips the downhole tubular such that the slip assembly anchors the downhole tool to the downhole tubular.   
     
     
         17 . The method of  claim 16 , further comprising:
 performing a fracturing operation with the downhole tool.   
     
     
         18 . The method of  claim 17 , further comprising:
 suppling one or more chemical solutions downhole to degrade the downhole tool, wherein the coating is left in a wellbore upon the degradation of the downhole tool.   
     
     
         19 . The method of  claim 18 , further comprising:
 flowing the coating to the surface.   
     
     
         20 . The method of  claim 18 , wherein the slip segments include a slip insert, wherein the slip insert includes the coating.