eTrac regularly provides services to oil & gas pipelines with ultra-high-density and high-resolution multibeam sonar data, sidescan, magnetometer and subbottom systems. eTrac creates highly-accurate pipeline alignments of exposed sections and can create depths and alignments for buried sections. Within a single multibeam survey the pipeline alignment, spans, inflections, crossings, objects near the alignment, sediment classification and sandbag and/or mat locations can be defined and compiled into a geodatabse. The buried alignment and depths can be defined if a subbottom system is used during the survey operations. If a survey is repeated quarterly or annually, eTrac can complete an in-depth analysis including recently completed stabilization efforts on spans, pipeline alignment movement, updated burial depths, analysis on object locations and significant sediment movement. Based on the client’s preference, deliverables include a custom feature database to identify tracked features in formats such as ARCGIS databases, custom CSVs, CAD plots and in-depth reports.

eTrac has completed pipeline decommissioning surveys as well as route planning surveys using multibeam, subbottom, and magnetometer sensors. We also provide emergency services for any possible leak or natural gas plume investigation by collecting and analyzing water column data concurrently with multibeam data.

eTrac completes high-resolution static and mobile terrestrial lidar surveys for a range of industry needs. These datasets are used independently or combined with multibeam & topographic datasets for a virtually seamless overlap of the three while also acting as a data QC tool. By combining multibeam data (collected on a high tide) with 3D terrestrial laser scanners (collected on a low tide), eTrac is able to create merged point clouds throughout the coastal environment, regardless of waterline location. This capability has proven itself to be highly effective in a number of applications. eTrac has been contracted to collect lidar data along breakwaters, dam faces, tunnels, and piers for structural analysis. Terrestrial lidar is a great alternative to topographic surveys when possible and is also used to get absolute coordinates on features and objects not easily accessible.