PIPELINE LEAK DETECTION SYSTEM FOR OIL AND GAS FLOWLINES

Petroleum fluids in production systems are frequently transported by s urface steel pipelines of low diameter working at low pressures and un der a two-phase flow regime. These pipelines operate without permanent , continuous supervision for leaks. The leaked volume is usually high before the leak is noticed and stopped. High leak volumes pollute the environment and increase production costs. This paper describes the ex pected performance of the acoustic emission leak detection system for low pressure flowlines in oil and gas gathering installations. The dev eloped system detects acoustic emission signals generated by leaks. Sp ecific features of the system are discussed. The system was tested in a closed field scale two-phase flowloop. Example results of tests are reported. The paper is completed with conclusions and discussion of po tential applications of the system.