采矿与安全工程学报2017，Vol.34Issue(4)：782-788,7.DOI:10.13545/j.cnki.jmse.2017.04.025
水力冲孔物理模拟试验系统研制及其应用
Development of hydraulic punching test system and its application
摘要
Abstract
High-pressure rotating hydraulic punching physical simulation test device was developed to study the characteristics of pressure release and transparency of hydraulic punching in soft coal seam. Its main structures are the nozzle, hydraulic punching drill pipe, hydraulic punching rotating system, hydraulic punching propulsion system, the base, and securing system, etc. Based on the self-developed physical simulation experiment system for coupling coal seam gas extraction, the device can be used in hydraulic punching physical simulation experiments under different in-situ stress state and different hy-draulic punching sizes. A hydraulic punching simulation test was carried out with this system and it was found that during the process of punching due to hydraulic punching pressure relief, the coal in the im-pact area scope compressed. At the same time, the borehole imaging results clearly reflect the hydraulic punching hole and the position and shape of the fracture, which can provide support for hydraulic hole pressure relieving mechanism and methane moving mechanism in later analysis.关键词
煤储层/水力冲孔/试验系统/物理模拟/卸压Key words
coal reservoir/hydraulic punching/test system/physical simulation/pressure relief分类
矿业与冶金引用本文复制引用
冯丹,许江,陶云奇,彭守建,武雪锋,张先萌..水力冲孔物理模拟试验系统研制及其应用[J].采矿与安全工程学报,2017,34(4):782-788,7.基金项目
国家科技重大专项项目(2016ZX05044-02) （2016ZX05044-02）
河南省创新型科技人才队伍建设工程项目(164100510024) （164100510024）
国家自然科学基金重点项目(51434003) （51434003）
