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页岩气压裂工艺技术现状及展望
Shale gas fracturing technology present situation and prospects
彭成勇
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DOI:
作者单位:中海油研究总院
中文关键字:页岩气 多级压裂 泵送桥塞 水平井压裂 水力喷射 丛式固井滑套
英文关键字:Shale gas,multi-stage fracturing,pumping bridge plug,horizontal well fracturing,water jet cluster,cementing sleeve
中文摘要:近年来国外大力发展水平井多级压裂技术,并成功应用于页岩气实现了商业化开发,为缓解世界能源危机鼓舞了信心。我国能源消耗巨大,对外依赖程度越来越高。尽管拥有丰富页岩气资源,但却无法有效动用,其主要原因之一是国内现有增产工艺技术落后。目前国内水平井压裂技术主要针对砂岩储层,而应用于页岩储层则效果不佳。鉴于目前关于页岩气的渗流机理尚未形成成熟理论,本文从工艺角度分析页岩气开发,详细介绍了国外主流增产工艺技术及现场试验效果,并结合国内技术现状提出我国未来压裂工艺技术研究方向,为加快国内页岩气资源大规模开发提供参考。
英文摘要:In recent years, foreign vigorously develop the multi-stage fracturing of horizontal wells, and successfully applied to the shale gas development, encouraged to alleviate the world's energy crisis of confidence. China has huge energy consumption, and increasingly high degree of external dependence. Despite there are rich shale gas resources, but it can’t be effectively utilized, one of the main reasons is the existing stimulation technique is backward. At present, the horizontal well fracturing technology for sandstone reservoirs, while applied to shale reservoirs is ineffective. Since there is no formed a mature theory for Shale gas percolation mechanism,this paper analyses the development of shale gas from the process point of view,detailed describes the foreign mainstream fracturing technology and contrasts its test results。Combine with the present situation of our fracturing technique. In order to speed up large-scale development of domestic shale gas resources, it also providing a reference for the development direction of fracturing technology in the future.
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国内统一连续出版物号:CN51-1159/TE |国内发行代码: |国际标准出版物号:ISSN1673-3177 |国际发行代码:
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