Coal during its carbonization process produces a gas. This gas, mainly formed by methane, can be used. The use of CBM (Coal bed methane) as an energetic resource is not much known in Spain. This work is the first step...Coal during its carbonization process produces a gas. This gas, mainly formed by methane, can be used. The use of CBM (Coal bed methane) as an energetic resource is not much known in Spain. This work is the first step to enhance the development of this resource in Castilla y León. A theoretical review and a state of the art description have been carried out, taking into account all the factors that can influence in the development of a CBM project. Then CBM resources have been quantified by Castilla y León accurately for every coal bed. After that, technical feasibility has been used to evaluate total amount of gas that can be recovered. The last step was to evaluate economic feasibility to know how much gas could be economically profitable. This paper covers the economic factor and exploitation options of CBM in Castilla y León, considering technical parameters together with costs and economic requirements for the tow most promising areas in north-west Spain. The main findings include that a CBM system would be feasible in Guardo-Barruelo, however, the economic feasibility will be limited to long operation time of the wells and an increase of the prices of natural gas. In North Leon, the results show a high profitability even under low natural gas prices.展开更多
Coal during its carbonization process produces a gas. This gas, mainly formed by methane, can be used. This gas, coalbed methane (CBM), is usually mainly formed by methane and can be considered similar to natural gas ...Coal during its carbonization process produces a gas. This gas, mainly formed by methane, can be used. This gas, coalbed methane (CBM), is usually mainly formed by methane and can be considered similar to natural gas as energy source. The evaluation of the techno-economic feasibility of the extraction of this gas depends on a large number of complex different factors. The work carried out covers the different aspects to simplify the first approach for CBM feasibility quantification considering a short number of indicators. A theoretical review and a state of the art description have been carried out, taking into account all the factors that can influence in the development of a CBM project. After that, technical feasibility has been used to evaluate total amount of gas that can be recovered. The last step was to evaluate economic feasibility to know how much gas could be economically profitable. Conclusions got have been used to develop a simple method for evaluating CBM economic feasibility considering just four easy known parameters of coal beds. These are: the rank, the thickness, the gas concentration, and the permeability.展开更多
文摘Coal during its carbonization process produces a gas. This gas, mainly formed by methane, can be used. The use of CBM (Coal bed methane) as an energetic resource is not much known in Spain. This work is the first step to enhance the development of this resource in Castilla y León. A theoretical review and a state of the art description have been carried out, taking into account all the factors that can influence in the development of a CBM project. Then CBM resources have been quantified by Castilla y León accurately for every coal bed. After that, technical feasibility has been used to evaluate total amount of gas that can be recovered. The last step was to evaluate economic feasibility to know how much gas could be economically profitable. This paper covers the economic factor and exploitation options of CBM in Castilla y León, considering technical parameters together with costs and economic requirements for the tow most promising areas in north-west Spain. The main findings include that a CBM system would be feasible in Guardo-Barruelo, however, the economic feasibility will be limited to long operation time of the wells and an increase of the prices of natural gas. In North Leon, the results show a high profitability even under low natural gas prices.
文摘Coal during its carbonization process produces a gas. This gas, mainly formed by methane, can be used. This gas, coalbed methane (CBM), is usually mainly formed by methane and can be considered similar to natural gas as energy source. The evaluation of the techno-economic feasibility of the extraction of this gas depends on a large number of complex different factors. The work carried out covers the different aspects to simplify the first approach for CBM feasibility quantification considering a short number of indicators. A theoretical review and a state of the art description have been carried out, taking into account all the factors that can influence in the development of a CBM project. After that, technical feasibility has been used to evaluate total amount of gas that can be recovered. The last step was to evaluate economic feasibility to know how much gas could be economically profitable. Conclusions got have been used to develop a simple method for evaluating CBM economic feasibility considering just four easy known parameters of coal beds. These are: the rank, the thickness, the gas concentration, and the permeability.
