US2017121236A1PendingUtilityA1

Fiber optic cable in det cord

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Assignee: HUNTING TITAN INCPriority: Jun 20, 2014Filed: Jun 19, 2015Published: May 4, 2017
Est. expiryJun 20, 2034(~7.9 yrs left)· nominal 20-yr term from priority
Inventors:Richard Wayne BradleyWilliam Richard CollinsAndy LaneDale LangfordCharles LevineFaraidoon PundoleRick Smith
F42D 3/00E21B 47/135C06C 5/04E21B 43/117E21B 43/116E21B 47/123
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Claims

Abstract

An apparatus and method for providing a fiber optic cord in a perforating gun.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An elongated detonating cord comprising:
 an explosive encased in a sheath;   a fiber optic cable.   
     
     
         2 . The detonating cord of  claim 1  wherein the sheath and encased explosives are substantially cylindrical. 
     
     
         3 . The detonating cord of  claim 1  wherein the fiber optic cable is substantially parallel to the sheath. 
     
     
         4 . The detonating cord of  claim 1  further comprising an optical shield between the fiber optic cable and the explosive. 
     
     
         5 . The detonating cord of  claim 3  wherein the fiber optic cable is substantially coaxial with the sheath. 
     
     
         6 . The detonating cord of  claim 3  wherein the fiber optic cable is affixed to the sheath. 
     
     
         7 . The detonating cord of  claim 3  wherein the fiber optic cable is encased by the sheath. 
     
     
         8 . The detonating cord of  claim 3  wherein the fiber optic cable is embedded in the sheath. 
     
     
         9 . The detonating cord of  claim 3  wherein the fiber optic cable is spirally wound around the sheath. 
     
     
         10 . The detonating cord of  claim 7  wherein the fiber optic cable is offset from a centerline of the sheath. 
     
     
         11 . A method of perforating an oil well comprising:
 assembling a string of perforating guns including a fiber optic cable;   conveying the string of perforating guns into a subterranean well;   communicating with the perforating guns using the fiber optic cable.   
     
     
         12 . The method of  claim 11  further comprising:
 sending a detonation signal to the perforating guns using the fiber optic cable; 
 detonating the perforating guns in response to the detonation signal. 
 
     
     
         13 . An integrated ballistic and optic communications cable comprising:
 a tubular sheath;   an explosive contained within the sheath;   a fiber optic cable.   
     
     
         14 . The integrated ballistic and optic communications cable of  claim 13  wherein the sheath is substantially cylindrical. 
     
     
         15 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is substantially parallel to the sheath. 
     
     
         16 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is substantially coaxial with the sheath. 
     
     
         17 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is affixed to the sheath. 
     
     
         18 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is encased by the sheath. 
     
     
         19 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is embedded in the sheath. 
     
     
         20 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is spirally wound around the sheath. 
     
     
         21 . The integrated ballistic and optic communications cable of  claim 18  wherein the fiber optic cable is offset from a centerline of the sheath. 
     
     
         22 . The integrated ballistic and optic communications cable of  claim 13  further comprising an optical shield between the fiber optic cable and the explosive. 
     
     
         23 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is a single mode fiber optic cable. 
     
     
         24 . The integrated ballistic and optic communications cable of  claim 13  wherein the fiber optic cable is a multi-mode fiber optic cable.

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