长输油气管道水工保护效能评价方法

油气管道沿线水工保护工程的效率缺乏系统科学的评价和预测,从而不能使有限的管道维护资源得到充分高效的优化配置,需要开展以效能评价为主的后评价研究。在归纳水工保护工程效能特征及分类的基础上,通过建立的单投入双产出型评价方法对乌兰线、西气东输二线等15条管道347处水工保护工程开展了基于“投入-产出”评价模式的水工效能评价工作,评价指标中风险减缓指数和工程可用性指数可直观体现水工保护工程的防护效果、工程质量及可维护性,而效能评价结果有助于优化投资决策,改进工程效能,可用于指导管道运营公司水工保护工程的维护及修建工作。

Efficiency evaluation method for hydrotechnical prevention project of long-distance oil ＆ gas pipeline

Since there is no systematic and scientific evaluation and prediction of the efficiency of hydrotechnical prevention projects along oil and gas pipelines, the limited pipeline maintenance resources can not be fully and efficiently optimized, it is necessary to carry out follow-up evaluation based on efficiency evaluation. Based on efficiency characteristics and classification of hydrotechnical prevention projects, efficiency evaluation of 347 hydrotechnical prevention projects in 15 pipelines, such as WuLan Pipeline, the 2nd West-to-East Gas Pipeline has been conducted based on ＂input-output＂ model by the established ＂single input-double output＂ evaluation method. Risk mitigation index and engineering usability index in the evaluation can directly reflect the protective effect, quality and maintainability of hydrotechnical prevention projects. The efficiency evaluation results are valuable data for optimizing investment decision, improving project efficiency, and can provide a guidance to the maintenance and construction of hydrotechnical prevention projects for operating companies.