Neptune Oceanographics
Neptune Oceanographics Ltd are a
global leader in the provision of leak detection services for subsea pipelines,
control systems and risers. We maintain a research and development programme to
ensure the continuous development of subsea leak detection techniques.
Our R&D Developments Includes:
- Ultrasonic (acoustic) leak detection
- Oil (hydrocarbon) leak detection
- Methane leak detection
- Long range fluorescent dye detection (for oil & tracer dyes)
- Differential subsea temp measurement
Neptune Oceanographics have facilities in the UK, Brazil, Norway, Singapore and
UAE allowing our services to be available worldwide at very short notice.
| Subsea Leak Detection Systems |
In today�s climate pipeline safety issues have a high prominence. One of the
main concerns when it comes to pipeline safety is the possible occurrence of
leaks. Periodic inspections are required to ensure pipeline safety, these
inspections will include the deployment of leak detection systems and other
related inspection tools.
| Fluorescent Detection |
Our fluorometers are submersible and very sensitive, they have the capabilities
to detect fluorescent leak detection dye at concentrations that are to low to be
visible to an underwater camera or the naked eye. Our new selection of long
range remote sensing fluorometers offer high special coverage and the ability to
detect extremely low concentrations in turbid conditions.
| Acoustic Leak Detection |
Ultrasonic (acoustic) leak detection is a method of detection for pipeline leaks
that uses a directional hydrophone to listen for ultrasounds that have been
generated by leaking fluids passing through an under pressure orifice. Our
acoustic leak detection sensors can be mounted on a PIG, ROV or AUV or
diver-held.
| Temperature Detection |
There are some circumstances such as with high pressure control systems and
water injection flow lines where leaks can be identified with the use of
temperature detection. We have developed a differential temperature technique
with the ability to detect even the smallest changes in temperature.
| Methane Detection |
Neptune Oceanographics deploy our SNIFFIT for the detection of subsea methane
leakage, as detection with fluorescence is not possible in water with methane.
SNIFFIT is a unique, real time system that detects methane leaks in water and
then displays the data in real time. It can also be used to detect all gaseous
hydrocarbons and our newest version can even detect MEG (mono ethylene glycol).
| Inspection Techniques |
Our range of leak detection systems have been designed to work with a range of
subsea inspection techniques, these include Diver-held solutions for shallow
waters and ROV, AUV & PIG systems for deeper water.
| Diver Inspections |
In situations where the water is shallow, a diver is used instead of an ROV.
This technique is usually only used when looking for subsea leaks around
flanges, manifolds and templates etc. Neptune Oceanographics offer a range of
leak detection systems that can be diver-held.
| Subsea ROV Inspections |
ROV (Remote Operated Vehicles) are used for the majority of subsea leak
detection surveys. The ROV powers the leak detection system and transmits data
in real time to the survey vessel via the ROV umbilical. An on-board PC is used
to display and record the data.
| AUV Inspections |
AUV inspection is a very similar technique to ROV inspection, however the
inspection system is mounted at the front of the AUV in a fixed position and the
data is recorded for playback at a later time, instead of being delivered in
real time.
| PIG Inspection |
PIG inspection is a techniques used for pipe-in-pipe or when the pipeline is
buried deep in to the seabed sediments. The inspection equipment is mounted on
to a pipeline PIG so leak detection can be conducted.
