US2015083439A1PendingUtilityA1

Method And Systems For Stick Mitigation Of Cable

Assignee: SCHLUMBERGER TECHNOLOGY CORPPriority: Sep 20, 2013Filed: Sep 20, 2013Published: Mar 26, 2015
Est. expirySep 20, 2033(~7.2 yrs left)· nominal 20-yr term from priority
Inventors:Joseph Varkey
E21B 23/14E21B 41/00E21B 15/00E21B 19/22
44
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Claims

Abstract

A system for stick mitigation of a cable in a well includes a derrick operatively aligned with a well. The derrick supports a cable and a cable injector. The cable injector is operatively aligned with the well and the cable, and the cable injector is disengaged during normal operations.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A system for stick mitigation of cable in a well, wherein the system comprises:
 a derrick operatively aligned with a well;   a cable supported by the derrick; and   a cable injector connected with the derrick, wherein the cable injector is operatively aligned with the well and the cable, and wherein the cable injector is disengaged during normal operations.   
     
     
         2 . The system of  claim 1 , wherein the cable injector is hung on the derrick. 
     
     
         3 . The system of  claim 1 , wherein the cable is a polymer-locked, crush-free wireline cable. 
     
     
         4 . The system of  claim 1 , further comprising:
 a drum connected with the cable, wherein the drum runs the cable in the well, and wherein the drum pulls the cable out of the well.   
     
     
         5 . A system for stick mitigation of cable in a well, wherein the system comprises:
 a derrick operatively aligned with a well;   a cable supported by the derrick;   a drum for running the cable into and pulling the cable out of the well;   a capstan located between the derrick and the drum; and   a cable injector connected with the derrick, wherein the cable injector is operatively aligned with the well and the cable, and wherein the cable injector is disengaged as the cable is run into the well.   
     
     
         6 . A method for stick mitigation of cable in a well, wherein the method comprises:
 performing a well service using a cable supported by a derrick;   moving the cable relative to the well with a drum during normal operations; and   engaging a cable injector to pull on the cable if the cable is stuck in the well.   
     
     
         7 . The method of  claim 6 , wherein the cable injector pulls on the cable with a force that is up to 85 percent of the cables ends-fixed break strength. 
     
     
         8 . The method of  claim 6 , wherein the cable injector is disengaged during normal operations. 
     
     
         9 . The method of  claim 6 , wherein engaging the cable injector comprises providing hydraulic power thereto. 
     
     
         10 . The method of  claim 6 , further comprising using a capstan located between the derrick and drum to reduce cable tension during normal operations.

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