Application of Multi-level Fuzzy Evaluation Model in Integrity Evaluation of CBM Compressor System
In view of the safety operation and safety management of the coalbed methane compressor system in service used in the pressurized gathering and transportation,integrity evaluation research on the coalbed methane compressor unit system was carried out and the integrity evaluation method of compressor unit system based on multi-level fuzzy evaluation model was established.An evaluation system based on the criteria of system structural integrity and performance integrity was established according to the multi-level fuzzy evaluation method.The weights of each index were established according to the analytic hierarchy process.Objective set,weight set,comment set and judgment matrix are established by combining fuzzy evaluation model and expert rating.The evaluation results of each factor are obtained according to the maximum membership criterion.Based on the case evaluation of the in-service compressor unit system in a coalbed methane field in Yan-chuan field,the evaluation results of compressor unit system based on structural integrity and performance integrity indexes are better,and the overall integrity evaluation result was 77.8.As a result,the evaluation result is in good agreement with the actual situation.So the integrity evaluation mothed of coalbed methane compressor unit system could provide theoretical support and evaluation measures for on-site safety management and efficient operation effect evaluation of the unit.
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