摘要
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。
To ensure fairness and justice of natural gas custody transfer, it is necessary to set up a real-time online metering system at distribution substations. The metering system which was constructed at a certain natural gas distribution substation in Xinjiang Oilfield in the early stage cannot satisfy the configuration requirements on the straight pipe section of flowmeter which are stipulated in current national measurement standards, and its metering data make gas settlement and cost accounting difficult. To maximize the economic benefit, the initial technological process was reconstructed by applying the flexible short-pipe installation mode to pipeline arrangement according to related national standards and requirements. Thus, the upper measurement limit of flowmeter is increased and the reduction of flowmeter accuracy caused by front-end pressure fluctuation is avoided. In the process of reconstruction, the initial pipelines, equipments and flowmeters were utilized fully to develop the standby metering pipeline of the distribution substation, so there was no extra cost for equipment procurement and reconstruction and about RMB 115 × 104 was saved. And besides, it provides the metering space for additional load of the future customers.
作者
聂群
NIE Qun(Oil ＆ Gas Storage and Transportation Company, PetroChina Xinjiang Oilfield Compan)
出处
《油气储运》
CAS
北大核心
2017年第10期1217-1222,共6页
Oil & Gas Storage and Transportation
基金
新疆油田公司油气储运分公司科研项目"风城2#配气站计量系统维修设计"
201516
关键词
天然气
流量计
测量范围
管道配置
压力等级
备用管路
natural gas, flowmeter, measurement range, pipeline arrangement, pressure degree, standby pipeline
