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Improve pre-directional modelling accuracy for the next run

Define fitting parameters of previously run BHAs

Explain unexpected directional counter-performance observed during the run

Post-Analysis Results Chart

BHA and bit run directional post-analysis service description

Unexpected directional behavior is a key concern when drilling. To get prepared for these situations in future drilling phases, DrillScan offers the BHA and Bit Run Directional Post-Analysis service. It consists in using our strong in-house expertise in directional drilling.

This service enables:

  • Understand counter-performance observed during the run of any detailed BHA (Rotary, VGS, RSS, Motor, RWD…).
  • Using complete surface and downhole data sets while drilling (caliper, UCS, WOB, Activation or TFO log).
  • Allows to compare actual performance results versus models prediction.
    • This comparison will provide sufficient information to understand and define what happened downhole through unknown or uncertain parameters such as friction factor, hole overgauge or bit directional behavior (bit steerability and walk angle).

BHA and Bit Run Directional Post-Analysis is an iterative process that results in a critical optimization for next BHA runs simulations accuracy. This unique process allows to improve significantly the learning curve and drilling performance in multiple wells development projects.

Diagnostic of root causes post-analysis allows to provide you suitable recommendations regarding proper PDC Bit choice, Motors or RSS settings to improve your drilling performance on future BHA runs allowing shoe-to-shoe single BHA run for given drilling section.

Benefits of BHA and bit run directional post analysis

Service usage by project phase
Pre-WellReal TimePost-Well
  • Model improvement for following runs

    Enhance the learning curve by modelling existing data, capitalising on results for the next well

  • Increase efficiency

    Increase drilling process efficiency by reducing intrusive over-steering

  • Formation changes

    Correlate hole overgauge to formation changes.

  • Casing centralization

    Gain an estimation of hole overgauge without a calliper log for casing centralisation and cementation.