Downhole Drilling Dynamics Monitor


APS’s Drilling Dynamics Monitor (DDM™)* sub measures and records weight on bit, torque on bit, bending on bit, internal and annular pressure and temperature during drilling operations.

Features & Benefits

  • Captured data may be transmitted in real time via APS’s SureShot™ MWD/LWD system, or stored in the DDM’s downhole memory for later download and analysis.

  • Can be equipped with vibration monitoring to measure, calculate and record axial, lateral and angular downhole shock and vibration.

  • Real-time vibration alarms may be transmitted via SureShot.


  • Available sizes: 4.75 in. (121 mm), 6.75 in. (172 mm) and 8.0 in. (204 mm).