The Sondex Casing Collar Locator (CCL) responds to changes in metal volume, such as pipe collars and perforations.
Description
As the tool passes a collar, or change in metal volume, lines of magnetic flux between two opposing permanent magnets are disturbed. This causes a low frequency voltage or Electro Magnetic Field (EMF) to be induced in a coil, mounted between the permanent magnets. Finally the signal is converted by a voltage-controlled oscillator for recording in the Ultrawire™ section of the tool.
Features
- Combinable with other Ultrawire™ tools.
- Depth control in casing or tubing.
- Location of casing or tubing damage.
- Confirmation of perforation depths or intervals.
Ver A - Nov 2007
