Sub-Sea Pipeline Leak Detection System

• Detection of leaks in pipelines and sub-sea installations
• Leak detection using many fluorescein and Rhodamine fluorescence based products
• Direct hydrocarbon detection
• In-situ oil in water monitoring
• Hydrothermal vent studies

• Rapid mobilisation world-wide
• Complete turnkey system with data visualisation software
• High fluorescence sensitivity and good background rejection give excellent sensitivity
• Good long term calibration stability
• Low power consumption
• Operationally robust
• Systems deployable from ROVs, profiled, towed or diver held
• Simplicity of integration and use
• Systems operational to full ocean depths
• Wide range of products detected
• More than 25 years proven track record

Impressive Track Record

The highly reliable Chelsea Technologies Group Sub-Sea Pipeline Leak Detection System has an impressive track record since 1983, of providing a quick and cost-effective method of detecting sub-sea leaks from offshore pipelines, platforms and structures.  The system can be used during commissioning of new pipelines or detecting leaks in operational pipe and control lines. The Chelsea Sub-Sea Pipeline Leak Detection Systems are extremely sensitive and capable of detecting leaks as low as 1 ppm in sea water.

Chelsea Technologies Group offer a number of leak detection systems targeted to rapidly locating sub-sea leaks of different compounds including:

• Hydrocarbons in pipelines and near seabed;
• Fluorescent dyes (with either Rhodamine or Fluorescein type fluorescence) for pipeline commissioning;
• Control fluids including both UV and non UV fluorescence based.

All systems are provided with:

• Fluorimeter (the particular fluorimeter supplied will depend on desired depth and application)
• Interface Unit
• Complete cable set (system dependent)
• Laptop PC with ‘UNIplot’ GUI
• Transit case
• Complete user handbook set

If two targets are required to be detected during the same operation, two different fluorimeters can be offered within the one system.

Wide Target Range
The Chelsea Sub-Sea Pipeline Leak Detections can be configured to measure a wide range of current products used within the Offshore industry. These include; RX9022 (Roemex), Pelagic 100 & Pelagic 50/50 with pink dye (Niche), Aqualink, Red 1247, Red 1749 (Houghton), Fluorodye UC, Hydrosure Cleardye, Cleardye (Champion), Transaqua (Castrol), Morlina 5 (Shell), EP1186 (AGMA) and many more.

Please contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it for further details or to discuss your particular requirements. System are available for hire and purchase.

Leaks are rapidly detected by positioning the Sub-Sea Pipeline Leak Detection Sensor along the suspect pipe or control line on the current wake side. Three deployment configurations are available:

• ROV mounted, 600 metre rated
• ROV mounted, full ocean depth (6000 metre) rated
• Diver-held system

Interpretation of Data

Output from the sensor is presented in real-time via a PC with the Chelsea Graphical User Interface 'UNIplot', which both stores the data and presents it graphically. ROV based fluorimeters are provided with an RS232 digital interface.

In the following short short video clip Bruce Kimber, Chelsea's leak detection system specialist demonstrates the use of the UV AQUAtracka system for leak detection and hydrocarbon in-water detection. 

Click to watch short video clip