www.logwell.com

General Information
  Cement Bond Logging Overview
  Cement Bond Log MIT?
  Some Cementing Problems

Hardware
  Printed Circuit Boards (PCBs)
  Cement Bond Log Notes
  T2...The Easy Way
  Z-Axis Modulation / Workaround
  Simultaneous Gamma Ray / SIE Cement Bond Logging
  Paul Knight's Care and Feeding of SIE Cement Bond Tools
  Dummy Lines
  Al Biggs' Magical Stat Eliminator
  Cable Reheading Made Simple

Schematics
  Dummy Lines (pdf files)
  Bond Kill Circuits (pdf files)
  SIE Stat Eliminator (pdf file)
  Bond Receiver Amp Circuits (pdf files)
  Improved Cement Bond Output Filter (pdf file)