EPS provide Pre-lay Survey services using ROV. Our ROV Pre-Lay survey operations would normally include:
- ROV video survey of initiation, pipeline/cable crossings, lay down and tie-in locations.
- ROV survey of centerline utilizing video, Dual Head Scanning Profiler (optional), Side Scan Sonar (optional) and/or Scanning Sonar.
If a hazard is detected by sonar, the ROV will normally break-off to undertake a video inspection to assess the nature of the hazard, permitting informed decisions to be made about removal of the object or re-routing of the pipeline.
Depending upon the nature of the object, the ROV may be used in its removal from the proposed pipe lay corridor. Alternatively, a minor route deviation will be made to avoid the object.
The pre lay survey may also include inspection and position determination of existing pipelines and cables in the area that run adjacent to or across the proposed line.