June 2016

Process Control and Instrumentation

Reduce revamp costs with appropriate 3D laser scanning strategies

The traditional approach for collecting plant as-built data commonly used for the revamp and retrofit of existing facilities, as well as for plant maintenance and operation, includes manually collecting the data and reviewing existing plot plans, elevation drawings, systems isometrics, or other 2D CAD drawings.

Wong, S., Lowery, R., Kou, C., Fluor Corp.

The traditional approach for collecting plant as-built data commonly used for the revamp and retrofit of existing facilities, as well as for plant maintenance and operation, includes manually collecting the data and reviewing existing plot plans, elevation drawings, systems isometrics, or other 2D CAD drawings. These items are prepared during the design and engineering phase. Since these options can be time-consuming and lack accuracy, complications often occur: Only hard-copy drawings are available, and a new CAD model needs to be created Defective documentation is provided to the owner As-built condition does not match as-designed condition, as CAD files are not updated with plant mod

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