Experimental Study of Fracture Propagation: The Application in Energy Mining

Yuxiang Cheng and Yanjun Zhang
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Yuxiang Cheng: Construction Engineering College, Jilin University, Ximinzhu Street, Changchun 130000, China
Yanjun Zhang: Construction Engineering College, Jilin University, Ximinzhu Street, Changchun 130000, China

Energies, 2020, vol. 13, issue 6, 1-31

Abstract: Hydraulic fracturing has been widely used in recent years as a key technology to improve energy mining efficiency in petroleum and geothermal industries. Laboratory hydraulic fracturing experiments recently were completed in six large-scale 300 × 300 × 300 mm rock specimens to better understand this complex process of hydraulic fracturing. When injection flow rate increases from 5 to 30 mL/min. The fracture initiation pressures and breakdown pressures increase, the propagation times and post-fracturing pressures decrease. The fracture geometries are observed and analyzed, mean injection power is proposed and results show that it could be used to roughly estimate the fracture total lengths. Moreover, the fracture permeabilities based on the pressure data are calculated and linearly ascend with the increase of injection flow rates. These results can provide some reasonable advice for implementing hydraulic fracturing reservoir simulations and improving energy production efficiency on application to field-scale operation.

Keywords: hydraulic fracturing; injection flow rate; rock; pressure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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