US2021140254A1PendingUtilityA1

Downhole tools treated by plasma electrolytic oxidation

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Assignee: MEDUNA INVEST LLCPriority: Nov 12, 2019Filed: Nov 12, 2020Published: May 13, 2021
Est. expiryNov 12, 2039(~13.3 yrs left)· nominal 20-yr term from priority
Inventors:Lance M. Rayne
C25D 11/04C25D 11/026E21B 2200/08E21B 23/01C25D 5/011
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Claims

Abstract

A downhole tool comprising a body made of aluminum material, dissolvable material or light alloy material having a coating formed by the plasma electrolytic oxidation process. The tool is a slip, a drag block, a button or any tool with wear blocks to get drag or keep the tool centered.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An downhole tool, comprising:
 a body; and   a coating formed by a plasma electrolytic process on the body.   
     
     
         2 . A downhole tool according to  claim 1  wherein the tool is a slip. 
     
     
         3 . A downhole tool according to  claim 2  wherein the slip is a wicker slip. 
     
     
         4 . A downhole tool according to  claim 2  wherein the slip is a flat wedge slip. 
     
     
         5 . A downhole tool according to  claim 2  wherein the slip is a hydraulic hold down slip. 
     
     
         6 . A downhole tool according to  claim 1  wherein the tool is a drag block. 
     
     
         7 . A downhole tool according to  claim 1  wherein the tool is a button. 
     
     
         8 . A downhole tool according to  claim 1  wherein the body is constructed of aluminum. 
     
     
         9 . A downhole tool according to  claim 1  wherein the body is constructed of dissolvable material. 
     
     
         10 . A downhole tool according to  claim 1  wherein the body is constructed of a light alloy. 
     
     
         11 . A downhole tool according to  claim 4  further including a button attached to the flat wedge slip. 
     
     
         12 . A downhole tool according to  claim 1  wherein the coating is formed on a portion of the body. 
     
     
         13 . A process for making a downhole tool, comprising the steps:
 making a body; and   treating the body by a plasma electrolytic process.   
     
     
         14 . A process according to  claim 13  wherein the tool is a slip. 
     
     
         15 . An apparatus prepared by a process comprising the steps of:
 making a downhole tool body; and   treating the downhole tool body by a plasma electrolytic process.   
     
     
         16 . An apparatus according to  claim 15  wherein the downhole tool is a slip.

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