Study Of Economic Evaluation Of CBM Surface Extraction Project In Coal Miningarea

CBM is symbiotic minerals with coalbed, the main component of CBM is methanewhich is adsorbed in coalbed. CBM develop and utilize which not only can reduce the coalmine disasters and environmental pollution, but also can replace and supplement toconventional natural gas, and has great economic value, social benefit and environment effect.CBM surface extraction Project is anemerging industry in China, after more than tenyears of development, which has had a way of large-scale and industrialization in part of thegood development condition area. But the previous projects had no made economic evaluationor a little due to vatious reasons and conditions. It is necessary to make the study of economicevaluation in the CBM surface extraction project, in order to adapt the rapid developmentaldemand for CBM industry in China, improve the scientific level of decision-making, guideand promote the healthy and orderly development of CBM industry, give full play to theinvestment benefits and social benefits.Tha article studies some characteristics as development mode, development stage andlength of service, and the function and principle of economic evaluation, analyse analysessome factors as geological factors, technological factors and economic factors, gets someparameters which is geological parameters, technology parameters and economic parameters,and introduces two instances. The result shows that the model which is set up to use theseparameters and indexes is applicable to the economic evaluation of CBM surface extractionProject, and acquires well the economic benefits, social benefits and security benefits.The economic evaluation indexes and economic evaluation model of EconomicEvaluation of CBM Surface Extraction Project in coal mining area will provide reference forfuture similar projects.