Experimental Study of Matrix Permeability of Gas Shale: An Application to CO2-Based Shale Fracturing
作者: Chengpeng ZhangPathegama Gamage Ranjith
作者单位: 1Deep Earth Energy Laboratory, Department of Civil Engineering, Monash University, Building 60, Melbourne, VIC 3800, Australia
刊名: Energies, 2018, Vol.11 (4)
来源数据库: Directory of Open Access Journals
DOI: 10.3390/en11040702
关键词: CO2 permeabilityLeak-off rateShale gasHydraulic fracturingWater floodingFormation damage
原始语种摘要: Because the limitations of water-based fracturing fluids restrict their fracturing efficiency and scope of application, liquid CO2 is regarded as a promising substitute, owing to its unique characteristics, including its greater environmental friendliness, shorter clean-up time, greater adsorption capacity than CH4 and less formation damage. Conversely, the disadvantage of high leak-off rate of CO2 fracturing due to its very low viscosity determines its applicability in gas shales with ultra-low permeability, accurate measurement of shale permeability to CO2 is therefore crucial to evaluate the appropriate injection rate and total consumption of CO2. The main purpose of this study is to accurately measure shale permeability to CO2 flow during hydraulic fracturing, and to compare the...
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  • higher 
  • applicability 适用性
  • shale 页岩
  • conditions 条件式
  • fracturing 断裂酌
  • clean 清扫
  • disadvantage 损失
  • permeability 磁导率
  • greater 较大
  • hydraulic 水力的