SYSTEM AND METHOD FOR DETECTING LEAK OF UNDERWATER PIPELINE Russian patent published in 2016 - IPC F17D5/02 

FIELD: oil industry.

SUBSTANCE: objective of invention is monitoring aquatic medium along route of underwater pipeline or oil product by means of reliable and relatively cheap stationary monitoring system, capable of operating at high level of background contamination. To solve set task leak detection system of underwater pipeline or oil product pipeline comprises a monitoring system (MS), intended for detection and monitoring of oil contamination of water samples in a cell installed on shore, selectively filled from regions of water body, located either upstream, or downstream of underwater part of oil pipeline. MS is preferably configured to detect leakage of underwater part of pipeline on basis of differential measurements of contamination of water samples from regions upstream and downstream of underwater part of oil pipeline. MS preferably comprises a remote detector of oil contamination and a set of sensors in contact with water.

EFFECT: technical result is continuous monitoring of tightness of oil pipeline, early detection of leaks and reduction of costs for monitoring underwater parts of oil pipelines and oil product pipelines in areas of crossing of water obstacles.

12 cl, 1 dwg