LineVu reveals contamination in high pressure natural gas systems that until now has been undetected. Despite commercial and legal contracts requiring that no liquids or solids should enter a gas network, it is common to find that liquid contamination is the cause of damage to power stations and other plant all over the world.
By monitoring the efficiency of gas/liquid separation systems, the patented LineVu systems provides game-changing safety and financial benefits.
LineVu is a camera system that can be permanently installed on high pressure natural gas systems. When installed downstream of a gas/liquid separator, it provides a live video stream of the gas leaving the separator system. Patented image processing is used to provide operators with a highly sensitive alarm if there is a break-through that contaminates the gas stream.
Allowing liquids into gas transmission systems causes major safety problems for compressors, pipeline integrity and end users such as power stations.
A patented LineVu system highlights areas where phase separation is allowing valuable NGLs into gas export lines.
Liquid carry over in gas treatment causes foaming in amine and glycol contactors. Normal practice is to use de-foamer to recover from a foaming event. This often requires a reduction in gas flow rate until the foam is under control. Current practice is to monitor pressure drop across the contactor. Now, with LineVu reporting a carry over event before foaming starts, de-foamer can be added to prevent foam rather than recover from it, without loss of production.
After gas treatment, it is important to recover as much of the premium condensate from the gas as possible. Processing liquids (usually glycol) can be carried over from gas treatment and freeze in the dew pointing equipment. This causes temperature control problems and can partially block the liquid removal process, and a combination of glycol and condensate are lost down the gas export line. When LineVu reveals liquid carry over from gas treatment, flows can be adjusted to find the optimum flow until the problem is diagnosed and repaired.
Using LineVu at custody transfer points improves accountability for pipeline contamination incidents. Gas is bought and sold at custody transfer points on a dry gas basis. LineVu is revealing glycol and compressor oil carry over that, up to now, passed on-line gas analysers without tripping an alarm. With the extra knowledge that the gas is wet, flow computers can be corrected, operators can make better decisions regarding the acceptability of gas, and pigging operations can be optimised.
LineVu is available in two configurations to meet your specific installation requirements
Engineered for high pressure pipeline integration using industry standard flanged connections where mechanical robustness and alignment are key.
✓ 3 inch 900 class RTJ flange to ASME B16.5
✓ Stainless steel 316L construction with FFKM sealing
✓ Rated up to 104 bar for high pressure applications
✓ Suited to installations requiring precise alignment and maximum mechanical integrity
✓ Integrates directly into existing flanged pipework
Designed for installations where space, access, or installation speed are critical, using a compact threaded connection with standard tooling.
✓ 1 inch NPT threaded connection
✓ Stainless steel 316L construction with FFKM sealing
✓ Rated up to 104 bar for high pressure applications
✓ Enables rapid installation using standard tooling
✓ Well suited to space constrained or access limited installations
LineVu has been installed in many gas processing site, from the UAE to Canada
THREADED
FLANGED
When natural gas is processed, liquids are injected to remove water vapour, carbon dioxide and hydrogen sulphide. It is vital that these liquids are completely removed from the gas stream prior to exporting the gas for sale yet, to date, there are no effective methods to determine if liquid separators are working to their stated efficiency 100% of the time. Often operators find out too late that there is a problem with liquid carry over causing $Ms of damage.
Along with the daily reports, a live video view directly to your control room is available
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