Fluid extraction apparatus and wire line tension detection system

Abstract

A fluid extraction apparatus for raising and lowering a canister assembly into a well, the fluid extraction apparatus includes an extractor operation assembly for raising and lowering a canister assembly. The canister assembly is raised and lowered into a well via wire line. The fluid extraction apparatus further including a wire line tension detection system to detect a slack condition in the wire line and send a signal responsive to the slack condition to the extractor operation assembly. A method for controlling the fluid extraction apparatus includes the step of lowering the canister assembly into the well via the wire line and running the wire line through the wire line tension detection system.

1 . A fluid extraction apparatus for raising and lowering a canister assembly into a well, the fluid extraction apparatus comprising:
 an extractor operation assembly for raising and lowering a canister assembly, the canister assembly raised and lowered into a well via wire line; and   a wire line tension detection system to detect a slack condition in the wire line and send a signal responsive to the slack condition to the extractor operation assembly.   
     
     
         2 . The fluid extraction apparatus of  claim 1  wherein the wire line tension detection system includes a first proximity sensor to determine the wire line is in a predetermined location. 
     
     
         3 . The fluid extraction apparatus of  claim 2  wherein the wire line tension detection system includes at least one magnet to pull the wireline in a direction away from the first proximity sensor when the slack condition occurs. 
     
     
         4 . The fluid extraction apparatus of  claim 2  wherein the extractor operation assembly stops lowering the canister assembly when the first proximity sensor determines that the wire line is not in the predetermined location. 
     
     
         5 . The fluid extraction apparatus of  claim 4  wherein the extractor operation assembly stops lowering the canister assembly when the first proximity sensor determines that the wire line is not in the predetermined location for more than one second. 
     
     
         6 . The fluid extraction apparatus of  claim 4  wherein the extractor operation assembly stops lowering the canister assembly when the first proximity sensor determines that the wire line is not in the predetermined location for more than 500 milliseconds. 
     
     
         7 . The fluid extraction apparatus of  claim 3  wherein the wire line tension detection system includes a second proximity sensor positioned so that the extractor operation assembly stops lowering the canister assembly when the second proximity sensor detects the presence of the wire line. 
     
     
         8 . The fluid extraction apparatus of  claim 1  further comprising a controller, memory and software capable of relaying operational conditions and wire line position to a personal computer device and receiving operational commands from the personal computer device. 
     
     
         9 . A method for controlling a fluid extraction apparatus, the method comprising:
 lowering a canister assembly into a well via a wire line; and   running the wire line through a wire line tension detection system.   
     
     
         10 . The method of  claim 9  further comprising the step of monitoring the wire line running through the wire line tension detection system, the wire line tension detection system sending a signal to an extractor operation assembly when a slack condition occurs. 
     
     
         11 . The method of  claim 10  further comprising the step of stopping the descent of the canister assembly into the well when the slack condition occurs. 
     
     
         12 . The method of  claim 11  further comprising the step of sending a communication to a personal computer device that includes operational data of the fluid extraction apparatus or sending a communication to a personal computer device that a slack condition has occurred. 
     
     
         13 . The method of  claim 12  further comprising the step of receiving a communication from the personal computer device with operational commands for the fluid extraction apparatus to execute. 
     
     
         14 . The method of  claim 9  wherein the wire line tension detection system includes a first proximity sensor to determine the wire line is in a predetermined location. 
     
     
         15 . The method of  claim 14  wherein the wire line tension detection system includes at least one magnet to pull the wireline in a direction away from the first proximity sensor when the slack condition occurs. 
     
     
         16 . The method of  claim 14  wherein the extractor operation assembly stops lowering the canister assembly when the first proximity sensor determines that the wire line is not in the predetermined location. 
     
     
         17 . The method of  claim 16  wherein the extractor operation assembly stops lowering the canister assembly when the first proximity sensor determines that the wire line is not in the predetermined location for more than one second. 
     
     
         18 . The method extraction apparatus of  claim 16  wherein the extractor operation assembly stops lowering the canister assembly when the first proximity sensor determines that the wire line is not in the predetermined location for more than 500 milliseconds. 
     
     
         19 . The method of  claim 15  wherein the wire line tension detection system includes a second proximity sensor positioned so that the extractor operation assembly stops lowering the canister assembly when the second proximity sensor detects the presence of the wire line.