煤矿安全2017，Vol.48Issue(7)：13-15,19,4.DOI:10.13347/j.cnki.mkaq.2017.07.004
泵注排量对煤储层水力压裂影响的试验研究
Experimental Research on Effect of Pumping Displacement on Hydraulic Fracturing in Coal Reservoir
摘要
Abstract
In order to study the influence mechanism of different fracturing fluid displacement and different fracturing times on the effect of hydraulic fracturing in coal reservoir,hydraulic fracturing test device,fracturing pump and similar materials were used to carried out hydraulic fracturing test under the condition of different fracturing fluid displacement and different fracturing times.The experimental results show that:as fracturing fluid displacement is larger,the fracture pressure is larger,the fracture time becomes smaller and the angle between hydraulic fracture and water outlet opening is larger.The fracture morphology is elliptic after first fracturing,then the second hydraulic fracture propagation path is closely related to internal defects and the characteristics of fractured surface.关键词
煤层气开采/水力压裂/相似材料/泵注排量/破裂压力/裂缝扩展Key words
coalbed methane exploitation/hydraulic fracturing/similar material/pumping displacement/fracture pressure/fracture propagation分类
矿业与冶金引用本文复制引用
张帆,马耕,刘晓,冯丹..泵注排量对煤储层水力压裂影响的试验研究[J].煤矿安全,2017,48(7):13-15,19,4.基金项目
河南省教育厅科学技术研究重点资助项目(13A440320) （13A440320）
河南省科技创新杰出青年基金资助项目(164100510024) （164100510024）
2015年安全生产重大事故防治关键技术重点科技资助项目(henan-0007-2015AQ) （henan-0007-2015AQ）
