中国工业天然气操作成本比较研究

天然气成本是决定石油企业利润的核心因素。本文采用帕累托分析法、灰色关联度分析法和指数分析法,分别以常规天然气气田和煤层气气田为代表,对常规天然气与非常规天然气进行操作成本构成分析。对比结果显示,从总操作成本变化趋势来看,二者本质区别在于各自生产过程中的技术费用;操作成本随生产阶段变化趋势总体较为一致,但在稳产阶段常规天然气操作成本呈下降趋势,而非常规天然气操作成本呈上升趋势。从操作成本构成因素来看,二者均含维护修理费,不同点在于井下作业费和直接动力费与煤层气操作成本关联度最高,厂矿管理费是影响操作成本最为密切的成本因素。

A Comparative Study on the Operation Cost of Natural Gas in China's Industry

The cost of natural gas is the key factor to determine the profit of oil companies. In this paper, the methods of Pareto analysis, gray correlation analysis and index analysis are applied. Respectively, conventional natural gas field and coal-bed methane gas field are as the representatives to analyze the operation cost of conventional natural gas and unconventional natural gas. The comparison results show that, as to the total operation cost, the essential difference between the two operation costs lies in the technical cost of each production process. The operation costs are consistent with the trend of the production stage. But their development trends in the stable production stage appear the difference. The operation cost of conventional natural gas is declining, while the operation cost of the unconventional natural gas is rising. As to the factors of operation cost, both of them are included in maintenance and repair costs. The difference lies in the highest correlation degree of the down-hole operation cost and direct power cost to coal-bed gas operation cost. Factory management cost is most close to cost factors affecting the operation cost.