a recent project in Venezuela, we have mapped features such
as buildings and facilities near to pipelines and produced
a GIS package to facilitate risk analysis.
operators working in USA, an asset survey will help compliance
with DOT regulations such as "the Pipeline and Hazardous
Materials Safety Administration's Rules on Pipeline Integrity
Management in High Consequence Areas for Hazardous Liquid
Operators (49 CFR Part 195)".
control survey for Inertial Measurement Unit (IMU) in pipeline detection
specialise in the provision of GPS and survey support for pipeline
mapping projects worldwide. Using GPS, we measure traps, welds and
control points along the pipeline in order to correct the IMU drift.
This correction is done through in house software. This method will
minimise dig time and costs when locating the defects and anomalies.
also provide pipeline asset surveys and can incorporate this data
into a GIS for a variety of uses such as class location risk analysis.
This work is often generated through pipeline safety regulatory
requirements, necessitating in-line inspection, integrity analysis
and risk assessment.
in-house software classifies the pipeline automatically using the
rules laid out in either 854.1(c) in ASME B31.8 or the UK equialent,
IDE/TD/1. The software solution aids in determining class locations
by analysing the number and type of buildings within a certain proximity
to the pipeline.
Surveys (Aerial LiDAR)
to (or after) construction of a pipeline, a LiDAR survey allows
for the identification of off-line concerns such as rivers,
streams, ditches and buildings and provides an accurate portrayal
of ground conditions along the pipeline.
further information on airborne laser scanning, please visit
our dedicated website: www.lidar.co.uk
use LiDAR data?
overland flows, it is important to obtain the best available, highest
resolution data possible. The standard for Digital Elevation Models
(DEM's) in the US is the National Elevation Dataset (NED) that provides
a consistent product for the entire U.S at a 30m (or in some areas
10m) grid cell resolution.
a LiDAR survey, combined with the aerial photography will provide
a DEM with a grid spacing of 0.5-1m if required. Using the NED data
set, micro terrain features that may channel the oil flow into a
narrow width even on a steep slope may be missed. This may even
indicate that oil flow would infringe upon a High Consequence Area
(HCA) when in fact it would be channelled away.
aerial photography combined with LiDAR data will provide up to date
land classifications, show areas of dense foliage which will reduce
oil mass, illustrate areas where oil will pool and even indicate
your risk; discover the clashes and interferences on complex structures
prior to offshore installation by laser scanning the structure in
the fabrication yard. Visit our dedicated site at www.laserscanning.co.uk