Detector system of slickline irregularities

Abstract

Detector of Slickline Irregularities (DILA) is a electronic system to detect and assess irregularities in production wells or to a new slickline by measuring eddy currents or eddies or Foucault currents. The system lines can vary in diameter depending on the operation to be performed on each well. The electronic system includes an optical encoder, eddy current sensor, eddy current reader, an electronic module for data acquisition and a computer. The detector monitors the integrity of the slickline in the well, interprets and records the data for graphing and reduces failures in the slickline as a result of rupture caused by excessive stress or collisions within the producing wells, detects flattening and bending, lack of nickel coating, porosity and corrosion.

What is claimed is: 
     
         1 . A detector system of slickline irregularities to operate in oil wells, comprising:
 a) an eddy current sensor, wherein the slickline passes through said eddy current sensor,   b) an eddy current reader, which detects a change in diameter in such slickline,   c) an optical encoder, which conditions the analog signal,   d) an electronic module for data acquisition, which acquires and conditions the signals from the sensors and processes the signals to the computer, and   e) a computer, which displays the measurement made.   
     
     
         2 . The detector system in accordance with  claim 1 , wherein the eddy current sensor measures slickline abnormalities with diameter between 0.092 inch and 0.125 inch, by appropriately changing the diameters of the sensor's adapter. 
     
     
         3 . The detector system in accordance with  claim 1 , wherein an electronic module for data acquisition, acquires and conditions the signals from the sensors and processes the information sent to the computer via, an RS232 serial communication cable where the software shows it to the user and allows to record it on file. 
     
     
         4 . The detector system in accordance with  claim 1 , characterized in that it detects flattening and folds on the slickline, lack of nickel coating (darkest zones on slickline), porosity and corrosion from acid attack, without interfering with the line, or in testing workshop before the specified service during operation. 
     
     
         5 . The detector system in accordance with  claim 1 , wherein the depth gauge has a 1.1997 m pulley perimeter with 500 pulses and CCW direction. 
     
     
         6 . The detector system in accordance  claim 1 , wherein the software has a recording capacity in a range of 60 to 80 m/min.