Bespoke deployment line extension

Abstract

A downhole tool deployment system including a tool string for insertion into a well, a deployment line configured for attachment to the tool string to lower the tools string into the well, and a line extension configured for attachment to the deployment line and the tool string for insertion between the deployment line and the tool string, the line extension having properties different from or similar to the deployment line.

1 . A downhole tool deployment system, the system comprising:
 a tool string for insertion into a well;   a deployment line configured for attachment to the tool string to lower the tools string into the well;   a line extension configured for attachment to the deployment line and the tool string for insertion between the deployment line and the tool string, the line extension having the same or different properties from the deployment line.   
     
     
         2 . The system of  claim 1 , further comprising:
 an interconnecting tool for insertion between the line extension and the deployment line.   
     
     
         3 . The system of  claim 2 , wherein the interconnecting tool is an adapter configured to connect the line extension and the deployment line. 
     
     
         4 . The system of  claim 2 , wherein the interconnecting tool comprises at least one logging tool. 
     
     
         5 . The system of  claim 2 , wherein the interconnecting tool comprises at least one well intervention tool. 
     
     
         6 . The system of  claim 1 , further comprising:
 at least one standoff built-in or mounted on the line extension.   
     
     
         7 . The system of  claim 1 , wherein the line extension is designed to operate in high-temperature environments up to 600 F. 
     
     
         8 . The system of  claim 1 , wherein the line extension is made using corrosion resistant alloy. 
     
     
         9 . The system of  claim 1 , wherein the line extension comprises at least one electrical conductor made of nickel-plated wires. 
     
     
         10 . A method of deploying a tool string into a well, the method comprising:
 attaching a deployment line to a line extension at a rig floor, the line extension having the same or different properties than the deployment line;   attaching the line extension to the tool string at the rig floor; and   
       inserting the tool string into a well using the deployment line and the line extension. 
     
     
         11 . The method of  claim 10 , wherein the tool string, line extension, and deployment line are connected with tool connections. 
     
     
         12 . The method of  claim 10  further comprising:
 attaching at least one stand-off to the line extension. 
 
     
     
         13 . The method of  claim 10 , further comprising:
 inserting an interconnecting tool between the line extension and the deployment line.   
     
     
         14 . The method of  claim 13 , wherein the interconnecting tool is an adapter configured to connect the line extension and the deployment line. 
     
     
         15 . The method of  claim 13 , wherein the interconnecting tool comprises at least one logging or intervention tool. 
     
     
         16 . A method of logging a well with problematic intervals, the method comprising:
 lowering a deployment line, a line extension, and a tool string into a well, the line extension having different properties than the deployment line, the properties of the line extension configured to allow the line extension to resist conditions in the problematic intervals;   passing only the tool string and the line extension into the problematic intervals of the well; and   performing logging operations at desired locations in the well.   
     
     
         17 . The method of  claim 16 , wherein the problematic intervals are high temperature. 
     
     
         18 . The method of  claim 16 , wherein the problematic intervals are corrosive. 
     
     
         19 . The method of  claim 16 , wherein the problematic intervals are of a high-pressure differential. 
     
     
         20 . The method of  claim 16 , wherein the deployment line remains above the problematic intervals in the well during logging operations.