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Advanced Vibrational Analysis
Assess axial, torsional and lateral modes of vibration associated to multiple excitation sources

Safe Positioning of Data Aquisition Equipment
Improve MWD/LWD placement by determining the position of minimum displacement

Prevent drilling issues
Suggest safe ranges of drilling rotation speeds at all depths to help avoid bit-bouncing, whirling and stick-slip issues

Vibration modal analysis software description

DrillScan Software Platform provides a very beneficial, user-friendly and essential tool for analysing drill string mechanical vibrations that may occur under specific critical conditions (rotation speed, WOB, hole overgauge).

With fast modelling results to forecast critical RPMs range for any type of BHA (rotary, RSS, motor, underreamer …), this module adds a strong value to all drilling phases.

The Vibration Modal Analysis module takes into account diverse excitation sources such as mass imbalance and additional rotation of steerable motor to improve simulation accuracy and help avoid bit-bouncing (axial mode of vibration), stick-slip (torsional mode of vibration) and whirling (lateral mode of vibration). This module provides modal deflection shapes at single depth for the three types of vibrations and as many modes as necessary.

It also allows multiple steps computations to follow critical vibrations along measured depth.

Vibration Modal Analysis results delivers straightforward and safe drilling parameters operating window.

Benefits of vibration modal analysis

  • Drilling parameters optimization

    Simulating multiple ranges of critical conditions (RPM, WOB, hole over-gauge…) allows the choice of safer drilling parameters and avoid BHA resonance.

  • Critical BHA tolls integrity

    By spotting high displacement zones due to vibrations, the Vibration Modal Analysis module allows to better assess damage risks on sensitive downhole tools (RSS, instrumented collars…).

  • Drilling performance enhancement

    High vibration levels affect the drilling process significantly, and need to be minimized. They are responsible for bit wear, pipe fatigue, can decrease borehole quality and can decrease drilling performance (ROP) as well as lead to mechanical failures of tools.