西南石油大学学报（自然科学版）Issue(3)：31-37,7.DOI:10.11885/j.issn.16745086.2015.03.10.03
页岩支撑裂缝中渗透率变化规律实验研究
Experimental Study on Permeability Evolution in Propped Shale Fracture
摘要
Abstract
In the process of shale gas fracturing exploitation,the permeability of propped shale fracture is one of the key factors that affect the fracture conductivity. This work focuses on the effects of swelling and embedment on permeability in propped shale using experimental method. The Pulse test method was used to measure the permeability of adsorbed gas and non-adsorbed gas. The permeability of He,which is a non-adsorbing gas,in both granite and shale was measured for references. The reduction of permeability in shale is caused by the existence of proppant embedment. The“U shape”feature is observed in CO2 permeability curve,which indicates that the swelling also has a significant effect on the permeability in shale. Compared with the permeability curve of He,the CO2 permeability is even lower and achieves the minimum value at the pressure condition around the Langmuir pressure.关键词
支撑剂嵌入/吸附气体溶胀/页岩支撑裂缝/渗透率变化Key words
proppant embedment/adsorption and swelling/propped shale fracture/permeability evolution分类
矿业与冶金引用本文复制引用
侯磊,Derek Elsworth,孙宝江,王金堂..页岩支撑裂缝中渗透率变化规律实验研究[J].西南石油大学学报（自然科学版）,2015,(3):31-37,7.基金项目
国家自然科学基金委员会（中国石油化工股份有限公司）（U1262202）；中央高校基本科研业务费专项资金（15CX06020A）。 （）
