| Based on the analysis of pressure transient change within the oil transfer pipeline, a real time pressure model of oil pipeline is set up. Software and hardware of the diagnosing system for leak detection & location were developed and the indoor experiment as well as site test was performed. By combining the transient change model method and rarefaction wave method, the multidimensional rules to detect the leakage and locate the leak point were set up. Also, the combination of the two methods is proved theoretically redound to improve the veracity of leak detection and location.
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