Drift Indicator System

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Accurate, dependable drift indicator system assures vertical holes

For accurate measurement of deviation from vertical in wellbores, the AOI Drift Indicator System is the most reliable and easy-to-use drift indicator available. This essential tool enables the driller to maintain a controlled, absolutely vertical drill path.

Double Recorder Timing Device & Angle Indicator Toolbox Go-Devil

Features

  • Instruments and charts available in 0-7º, 8º, 14º, and 16º values
  • Go-Devil available in 1-5/16 and 1-5/8-inch outer diameter
  • Variety of Go-Devil assemblies available for various methods of running the tool, including free-dropping, sand-lines, and core barrel adapters
  • Standard unit operates in wellbores up to 350º F ( 93º C )
  • Hot Well unit operates in wellbores up to 500º F ( 260º C )

System Components Include

  • Double Recorder — Measures and records hole inclination. Consists of an Angle Indicator and a Timing Device enclosed in a stainless steel case.
  • Go-Devil — Protects the Double Recorder from shock, pressure, and fluid.
  • Various other tools and components, such as rope sockets and Go-Devil sinker weights and stabilizers.
  • Tools for maintaining the Double Recorder.

Benefits

  • Easy to operate — any member of the crew can read measurement data.
  • Completely mechanical system — requires no liquid or electrical equipment.
  • Reliable, accurate measurement — helps prevent costly deviations from the vertical path.