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为了确保天然气贸易交接的公平、公正,在配气站中需设置实时在线的计量系统。新疆油田某天然气配气站早期建成的计量系统不满足现行国家计量标准对流量计直管段配置的要求,其计量数据造成气量结算、成本核算困难。基于国家相关标准要求,为了实现经济效益最大化,采用更为灵活的短管安装方式配置管道,并对原有工艺流程进行改造,既提高了流量计的测量上限,又避免了前端压力波动造成流量计准确度降低的问题。在改造过程中,充分利用原有的管路、设备、流量计等材料开发出配气站的备用计量管路,无需额外的设备购置费和改造费,节约费用约115×10~4元,同时为今后配气站增加负荷提供了计量空间。
In order to ensure the fairness and fairness of the natural gas trade transfer, a real-time on-line metering system needs to be set up in the gas distribution station. The early measurement system of a natural gas distribution station in Xinjiang Oilfield did not meet the requirements of the current national metrology standard for the configuration of the straight pipe section of the flowmeter. The measurement data caused the gas volume settlement and the cost accounting was difficult. Based on the requirements of relevant national standards, in order to maximize the economic benefits, a more flexible pipe installation method is used to configure the pipeline and transform the original technological process, which not only increases the upper limit of the flowmeter but also avoids the front pressure fluctuations The accuracy of the flowmeter to reduce the problem. In the process of transformation, the spare metering lines of the distribution station were fully developed by using the existing pipelines, equipment, flow meters and other materials without additional equipment purchase and modification costs, saving about 115 × 10 ~ 4 Yuan, At the same time for the future gas station to increase the load provides a measurement space.