www.logwell.com

General Information
  CCL Overview
  Magnetic Anomalies on CCL Traces
  Selected Casing Collar Locator (CCL) Photographs

CCL Components
  CCL Magnet Trivia
  CCL Coil Trivia
  CCL Magnet Wire Trivia
  Downhole CCL Amplifier Notes

Hardware
  Printed Circuit Boards (PCBs)
  Shooting CCL Surface Amplifiers

Service Equipment
  Magnet Chargers
  Coil Winders, Dereelers, and Tensioners

Schematics
  Shooting CCL (pdf file)
  Improved CCL Low Pass Filter (pdf file)
  Downhole Logging CCL Amps (pdf files)
  Shooting CCL Meters / Amplifiers (pdf files)