To provide the data acquisition and data logging components for Oil States' Tendon Tension Monitoring System (TTMS) to be deployed on oil platforms in the Gulf of Mexico.The TTMS measures tension and bending in the tendons used to anchor oil platforms to the ocean floor; a critical safety component ensuring that the tendons remain structurally sound.

The Challenge

The SolutionPVI Systems developed the software for the new TTMS system, including the user interface, data acquisition and data logging components. Each tendon is outfitted with measurement sensor devices monitoring strain on each tendon. Each measurement device transmits data to the PVI data collection and distribution system, which computes the tension and bending in the tendon, displays this information to the operator, and publishes this information to the platform's database server.

PVI Systems Inc. • 16 Liberty Way, Niantic, CT 06357 • 860.739.8044 • info@pvisys.com www.pvisys.com

• Advanced user-friendly human-machine interface written in LabVIEW

• Long term database logging using SQL Server / National Instruments (NI) Data Logging and Supervisory Control (DSC)

• Real time processing via four NI cRIO controllers

• Plug and play hardware for easy maintenance

• Industry standard CANopen, OPC, and Modbus protocols

• Displacement accuracy to one micron• Low power mode for operation during

power events

Contact us for more information on custom-engineered Data Acquisition, Machine Vision, Process & Motion Control, or Automated Test & Measurement systems.

The TTMS is currently deployed on the Shell Mars-B and Chevron

Big Foot deepwater tension leg oil platforms in the Gulf of Mexico.

Tendon Tension Measurement System for Oil Platforms

System Features