Demonstration of 3D Scanners for Anomaly Assessment – Final Report

Summary:
In this project, research on the capabilities of two currently available 3D scanners was conducted. Demonstrations of the products were performed with the participation of the manufacturers. Research found that these products could potentially replace manual pit gauge measurements.

Project Objective:
Research into the capabilities of two currently available 3D scanners was conducted. Demonstrations of the products found that 3D scanners could potentially replace manual pit-gauge measurements by providing more accurate measurements in an automated operation.

Project Description:
Gas pipeline operators are required to assess the severity of anomalies found in direct assessment and in-line inspections to determine the need for repair. This often involves investigating indications and manually performing in-the-ditch measurements with a pit gauge. However, accurate pit-gauge measurements can be difficult to obtain if the anomaly is on the side or bottom of the pipe. Additionally, the accuracy, repeatability, and reliability of pit-gauge measurements are highly dependent on the skill and experience of the user.

Several 3D optical-scanner products have entered the market that are intended to automate in-ditch anomaly measurement and assessment, increase data quality, and improve operational efficiencies.

In this project, research on the capabilities of two currently available 3D scanners was conducted. Demonstrations of the products were performed with the participation of the manufacturers. Research found that these products could potentially replace manual pit-gauge measurements.