天然气管道可靠性特征量

RELIABILITY CHARACTERISTIC QUANTITY OF NATURAL GAS PIPELINE

依据四川石油管理局输气公司经营的１２条输气管道近２５年的运行数据和陕甘宁盆地中部气田先导开发试验区地面集输管网近两年的运行数据，运用数理统计理论，对天然气管道的可靠性特征量进行了统计，并介绍了天然气管道事故分布统计及其参数估值的步骤，给出了天然气干线管道事故分布、维修时间分布类型及其估值以及采气管线、集气支线、站内管线的事故率。

On the basis of the operating data of 12 gas transmission pipelines managed by Huayang Gas Transmission Division in about 25 years and the data of the surface gathering pipelines nearly operated for two years in the development test area of Zhongbu gas field in Shanganning basin,and by applying mathematical statistics theory,the statistics on the reliability characteristics quantity of natural gas pipeline is made,the steps of gas pipeline accident distribution statistics and parameter estimation are introduced and the accident distribution,mainte nance time,distribution type and estimated value of gas trunk line as well as the accident rates of gas producing pipe,gathering branch pipeline and manifold in gathering station are given.