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Comply with industry best practice in wellbore survey management

Apply accurate BHA sag correction for each survey station as real-time support or post well analysis

Evaluate BHA proposal against BHA sag and optimize if applicable

Correct the measured TVD throughout the trajectory and reduce TVD uncertainty

BHA sag management service description

Survey error correction has a major impact on the wellbore placement. DrillScan BHA Sag Management service proposes, at all stage of the well life, to correct the inclination and azimuth of actual survey stations, based on the misalignment of the wellbore survey tools due to BHA deflection.

BHA Sag error, existing on every BHA, induce wellbore survey error occurring at each survey station, leading to significant wellbore misplacement in the final surveyed wellbore trajectory. Our service can guide the pre-well engineering process to anticipate TVD corrections. We are also able to perform while-drilling monitoring of wellbore positioning, enhancing collision avoidance process and target intersection success. Post-well sag analysis can be performed to update a wellbore trajectory database, or to obtain a precise wellbore trajectory of some critical wells.

Benefits of BHA sag management

BHA sag management service usage by drilling project phase
Pre-WellReal TimePost-Well
  • Improve collision avoidance process

    Enhance drilling operations safety by improving Collision Avoidance process.

  • TVD management

    Improve initial BPD and ultimate recovery by better TVD management in real-time or post-analysis.

  • Identify new infill targets

    Revisit mature field refining existing wellbore placement and identify new infill targets.

  • Reduce TVD uncertainty

    Reduce planned TVD uncertainty and make small reservoir targets economical.

  • Petrophysical data

    Strengthen petrophysical data vs. TVD accuracy.