Drilling Dynamics Monitor (DDM)
APS’s 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 APS’s SureShot? MWD/LWD system, or stored in the DDM’s downhole memory for later download and analysis.
The DDM tool can be equipped with vibration monitoring to measure, calculate and record axial, lateral and angular down-hole shock and vibration. Real-time vibration alarms may be transmitted via SureShot.
Vibration Memory Sub (VMS)
The SureDrill? 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.
The tool provides data in the form of ASCII text files which can analyzed by APS’s Vibration Data Viewer software or your own analysis software.
The tool’s 32 MB memory is capable of recording up to ~250 hours of continuous data.
This sonde-based tool is available in 6.75 in. and 4.75 in. drill collar sizes, with standard box and pin connections. The sonde-based design allows this tool to be scaled up or down easily for use with other drill collar sizes. Please inquire with your APS sales representative if you require a different collar size.
SureShot Vibration Memory Module (VMM)
APS’s VMM is a software-enabled extension to our SureShot MWD tool that measures, analyzes, records and enables real time transmission of axial (bit bounce), lateral and torsional (stick-slip, chatter and whirl) vibrations and shocks. VMM allows users to assess the severity of downhole drilling to improve drilling efficiency and alert them to vibration conditions that could damage MWD and other downhole tools. The real time and memory data can be correlated to drilling events and equipment performance to improve drilling efficiency or prevent failures. The real time and memory data can also provide evidence for use in warranty claim resolution. Real time, memory and surface sensor data can be viewed with the SureShot VMM Viewer, plotted with APSPlot? and exported in industry-standard formats (WITS and LAS).
Active Vibration Damper Sub (AVD)
APS’s SureDrill? Active Vibration Damper (AVD?)* is a standalone downhole tool that autonomously adapts to changing downhole BHA motion in real time to minimize axial, lateral and torsional drill string vibration. The AVD has demonstrated 50% improvements in rate of penetration (ROP) and doubling of bit life in the field due to reduced vibration. Other downhole drill string components, like MWD / LWD tools, also benefit from lower vibration.
Structurally, the AVD is similar to a shock-sub, with the addition of a damper section that has programmable stiffness. The damper chamber is filled with a magneto-rheological fluid that has electronically controlled viscosity. An integrated motion sensor measures displacement several times per second and changes the damping factor over a 7-to-1 range based on observed drilling conditions. By keeping tool string damping in the right range for current drilling conditions, the AVD significantly reduces vibration, maintaining the bit in better contact with the formation and increasing ROP.
The AVD is a self-contained drilling tool with no calibration or other rig maintenance required. The AVD records vibration data for later download.
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