页岩气压裂增产机理与施工技术分析

能源是制约中国经济发展的重要因素，但中国常规油气资源基本上都已经进入了产量递减期，开发页岩气是一条势在必行之路。在页岩气开发中压裂又是最为关键的环节，它直接关系到了气井的产能、采收率和经济效益。较为全面地介绍了页岩气的压裂增产机理和施工技术，对中国的页岩气开发提出一些有益的建议。从地质入手分析了页岩的地质概况，建议加强对脆性和天然裂缝的评价；并详细阐述了改造体积增产理论，简要分析了影响页岩气井产能的因素；结合改造体积增产机理，对页岩气压裂中需要应用到的各项技术进行了分析，提出了一些新的观点以及研究建议。

Analysis of Shale Gas Fracture Stimulation Mechanism andOperating Techniques

Energy is the main factor restricted the economic development of our country，but our convention oil and gasresource has already gone into the stage of decreasing production. Therefore，developing shale gas is an important way tosolve the problem. Fracture operating is related to the productivity，recovery and economic effectiveness，so it′s the key to thedevelopment of shale gas. This paper introduces the stimulation mechanism and operating techniques of shale gas，and givessome suggestions of shale gas development of our country. First，we analyze the geology of gas shale and suggest strengtheningthe evaluation of brittleness and natural fracture；and then，we expound the stimulation theory of stimulated reservoir volumeand analyze the influencing factors of shale gas production. In the end，we analyze all kinds of operating techniques whichcould be used in shale gas development，giving some new perspectives and suggestions of research direction.