Investigation of directional hydraulic fracturing based on true tri-axial experiment and finite element modeling. (May 2016)

• Record Type: Journal Article
• Authors: Deng, J.Q.; Lin, C.; Yang, Q.; Liu, Y.R.; Tao, Z.F.; Duan, H.F.
• Is Part Of: Computers and geotechnics. Volume 75(2016)
• Page Start: 28
• Page End: 47
• Publication Date: 2016-05
• Subjects: Directional hydraulic fracturing -- Fracture initiation -- Fracture propagation -- Fracture geometry -- True tri-axial experiment -- Nonlinear finite element; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2016.01.018
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: The initiation and propagation of directional hydraulic fracturing (DHF) was investigated based on true tri-axial experiment and finite element modeling. The influences of notch angle, notch length and injection rate on the DHF were investigated. The initiation and propagation of DHF was modeled by a 3D nonlinear finite element method. A comparison between experimental investigation and numerical modeling results indicates that there is a good correlation between unbalanced force (UF) and fracturing. UF can be used to predict the hydraulic fracture initiation and propagation.