Xiao Li, Jingdong Chen and Wenyan Zhang
Keywords: Negative pressure wave, Flow balance, Water pipeline, Leakage hole, Shape monitoring
Abstract:
<p class="MsoNormal">With the development of gas fields entering
the middle and late stage, the water production of gas Wells is increasing.
Water pipeline is a common way of water transport in gas field. If the pipeline
leakage will affect the environment, life and property, leading to the
reduction of natural gas production. Under the same working condition, the
positioning accuracy and response time of different leak hole shape monitoring
by using negative pressure wave and flow balance for gas field water pipeline
are studied. In this paper, a simulation model of different leak hole shapes is
established and compared with the experimental results obtained from different
leak holes. The internal flow field of the colleague's pipeline was simulated
and analysed, and its changing law was obtained. The research results show
that: when leakage occurs, the shape of the leakage hole is closer to the
circle, the negative pressure wave and delivery balance technology will be more
accurate in its positioning, and the response time will be shorter; rectangular
and equilateral triangle leakage hole shapes have the greatest impact on
pipeline leakage.</p>
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