Shock and Vibration Measurement
The Vibration Memory Sub (VMS) is a standalone downhole tool that measures, calculates and records axial, lateral and angular down-hole vibrations for retrieval and analysis at the surface. The VMS allows operators to assess the severity of downhole drilling shock and vibration, including stick-slip and whirl, and correlate the data to drilling events and equipment performance or failures. Measurements are stamped by date and time for correlation with other data. The VMS can be used to characterize downhole conditions for future BHA planning, post-well analysis of equipment failures or to provide evidence for use in warranty claim resolution.
Downhole Weight-on-Bit and Torque Measurement
The Drilling Dynamics Monitor (DDM™)*measures and records weight on bit, torque on bit, bending on bit, internal and annular pressure and temperature. Captured data may be transmitted in real time via MWD/LWD system, or stored in the DDM's downhole memory for later download and analysis
MWD Shock Isolation Measurement
These systems effectively protect sensitive MWD components from damaging shocks. The Vibration isolators support large axial and torsional loads with minimum deflections, while effectively reducing axial, torsional and lateral shocks, substantially improving reliability and reducing component replacement costs.
The benefits of this sub are improved reliability of MWD tool, improve component life and prevent the MWD tools from prematurely failure due to axial and torsional load.