US2009151940A1PendingUtilityA1

System and Method to Provide Verification during a Fishing Operation in a Wellbore

36
Individually held — no corporate assignee on recordPriority: Dec 14, 2007Filed: Dec 14, 2007Published: Jun 18, 2009
Est. expiryDec 14, 2027(~1.4 yrs left)· nominal 20-yr term from priority
Inventors:Bradley P. Malone
E21B 31/12E21B 47/09
36
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A technique provides a system and method to verify attachment of a fishing tool with a downhole well tool. The fishing tool comprises a latching mechanism that latches onto the well tool to be retrieved. The fishing tool also comprises a detection device to verify connection of the latching mechanism. The detection device provides a signal uphole to verify attachment to the well tool.

Claims

exact text as granted — not AI-modified
1 . A method for use during a fishing operation in a well, comprising:
 deploying a fishing tool downhole into a wellbore;   attaching the fishing tool to a fish; and   transmitting a signal uphole during retrieval of the fish to indicate retention of the fish by the fishing tool.   
   
   
       2 . The method as recited in  claim 1 , wherein transmitting comprises transmitting an electrical signal uphole to a receiver. 
   
   
       3 . The method as recited in  claim 1 , wherein transmitting comprises transmitting an optical signal uphole to a receiver. 
   
   
       4 . The method as recited in  claim 1 , wherein transmitting comprises transmitting a pressure signal uphole to a receiver. 
   
   
       5 . The method as recited in  claim 1 , wherein transmitting comprises transmitting during the entire fishing operation until the fish is retrieved at the surface. 
   
   
       6 . The method as recited in  claim 1 , further comprising utilizing a switch to determine engagement of the fishing tool with the fish. 
   
   
       7 . The method as recited in  claim 1 , wherein utilizing the switch comprises utilizing a contact switch that provides a constant signal when the fish is attached to the fishing tool. 
   
   
       8 . The method as recited in  claim 1 , wherein transmitting comprises using a pressure indicating valve to provide a pressure response when the fish is engaged by the fishing tool. 
   
   
       9 . A device, comprising:
 a fishing tool for use in retrieving a fish from a wellbore, the fishing tool comprising:
 a latching mechanism for latching onto the fish; and 
 a detection device cooperating with the latching mechanism to enable transmission of a signal uphole indicating the latching mechanism is latched onto the fish. 
   
   
   
       10 . The device as recited in  claim 9 , wherein the detection device comprises a switch. 
   
   
       11 . The device as recited in  claim 9 , wherein the detection device comprises a contact switch. 
   
   
       12 . The device as recited in  claim 9 , wherein the detection device comprises a valve that provides a pressure response when the latching mechanism is latched onto the fish. 
   
   
       13 . The device as recited in  claim 9 , wherein the detection device comprises a constant signal device to output a constant signal uphole while the fish is attached to the latching mechanism. 
   
   
       14 . A method, comprising:
 connecting a fishing tool to a fishing tool conveyance;   coupling a communication line between a surface location and a detection device of the fishing tool;   positioning the detection device to detect attachment of a fish to the fishing tool; and   providing a signal uphole through the communication line when the detection device detects attachment of the fish.   
   
   
       15 . The method as recited in  claim 14 , further comprising moving the fishing tool downhole through a tubing. 
   
   
       16 . The method as recited in  claim 14 , wherein connecting comprises connecting the fishing tool to a coiled tubing conveyance. 
   
   
       17 . The method as recited in  claim 14 , wherein coupling comprises coupling an electrical communication line between the surface location and the detection device. 
   
   
       18 . The method as recited in  claim 14 , wherein coupling comprises coupling a fiber optic communication line between the surface location and the detection device. 
   
   
       19 . The method as recited in  claim 14 , wherein coupling comprises coupling a wireless communication line between the surface location and the detection device. 
   
   
       20 . The method as recited in  claim 16 , wherein coupling comprises routing the communication line within a wall of the coiled tubing conveyance. 
   
   
       21 . The method as recited in  claim 14 , wherein positioning comprises positioning a contact switch to detect attachment of the fish. 
   
   
       22 . A system, comprising:
 a coiled tubing conveyance; and   a fishing tool coupled to the coiled tubing conveyance, the fishing tool comprising:
 a latching mechanism; and 
 a detection device to detect attachment of the latching mechanism to a fish. 
   
   
   
       23 . The system as recited in  claim 22 , further comprising a communication line routed along the coiled tubing conveyance to carry a signal uphole when the latching mechanism is attached to the fish. 
   
   
       24 . The system as recited in  claim 23 , wherein the detection device outputs a constant signal when the fish is attached. 
   
   
       25 . The system as recited in  claim 22 , wherein the detection device outputs a pressure signal when the fish is attached.

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