Pipeline Mapping is a specialised part of Merrett Survey Partnerships worldwide survey services.
well as data collection in the field, we offer data processing services
and act as consultants, providing training for pipeline operators in
GPS, Survey and Geodesy. Merrett Surveys have vast experience providing
GPS surveys for AGM (Above Ground Marker) locations associated with IMU
based pipeline mapping. We have skills to optimise the accuracy of your
mapping system. Detailed reports enable crews to set out AGM's
accurately and swiftly.
mapping required before the design of oil, gas and petroleum pipelines
is a service we also provide. We can do this using aerial mapping with
photogrammetry or airborne laser scanning - Lidar, or ground based in
field GPS or DGPS methods.
to (or after) construction of a pipeline, an airborne 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.
We also provide terrestrial laser scanning services, often used in oil and gas plants for clash detection.
GPS services for pipeline mapping
carry out 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. Many pipeline operators use GIS for managing their
assets, planning mitigation strategies, and developing integrity plans.
Pipeline mapping provides the data for the GIS, and it is vital that
field data collection is completed in a reliable and accurate way.
pipeline mapping work is a vital part of any pipeline integrity
management scheme. For pipeline operators working in USA, it 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)."
Mapping without an IMU
have developed a method of 'mapping' pipelines from the surface without
the use of an IMU (Inertial Measurement Unit). Measuring the buried
pipe from the surface we can create a full 3D model of the pipe. Using
specialist software that we have developed, we can then adjust your MFL
inspection data onto the 3D pipe and thus provide every weld, feature
and defect of the pipe with full 3D coordinates. This method has proved
to be extremely accurate (exceeding IMU accuracies).
merged your MFL data to provide accurate co-ordinates of every anomaly
and defect, we can then stake out those defects for you - saving time
and cost on repair and investigative digs and excavations.