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煤层气开采技术专利中蕴藏着大量反映开采技术领域发展情况的有效信息,通过系统挖掘,可以高效、准确地预测该领域技术发展趋势。在嵌入美国的专利信息作为对比数据的基础上构建了一套系统专利挖掘路径,通过挖掘对比两国专利的历年申请情况、专利IPC信息及技术生命周期剖析了我国在煤层气开采领域的技术发展现状;同时,对专利文本进一步挖掘聚类,通过提取核心技术关键词,绘制各核心技术领域的发展趋势图,以准确预测我国在煤层气开采技术领域的未来研究重点。
There are a lot of effective information in CBM exploitation technology patents that reflect the development of mining technology. Through systematic mining, the technology development trend in this area can be predicted efficiently and accurately. Based on the patent information embedded in the United States as the comparative data, a set of system patent mining path is constructed. By mining and comparing the applications of the two countries over the years, the patent IPC information and the technology life cycle analyze the technological development in the field of coalbed methane At the same time, the patent texts are further tapped into clusters, and the core technology keywords are extracted to draw the development trend charts of each core technology field so as to accurately predict the future research focus in the field of CBM mining technology in China.