Visualized Hydraulic Fracture Re-Orientation in Directional Hydraulic Fracturing by Laboratory Experiments in Gelatin Samples

• Published in: Applied sciences Vol. 14; no. 5; p. 2047
• Main Authors: Zhang, Hua, Liu, Benben, He, Qingyuan
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.03.2024
• Subjects: Coal industry; Coal mining; Cutting tools; directional hydraulic fracturing; Experiments; hydraulic fracture re-orientation; Hydraulic fracturing; hydraulic fracturing experiments in gelatin; Laboratories; Mineral industry; Mines; Mines and mineral resources; Mining industry; Oil wells; Polyvinyl chloride; Propagation; Shrink wrapping; Stress concentration; three-dimensional irregular hydraulic fracture geometry

Directional hydraulic fracturing (DHF) is popular with hydraulic fracturing operations in coal mining to create cave-hard roofs, in which radial initial notches are created around open borehole walls before injecting high-pressurized fluid. Despite extensive field application of DHF, the three-dimen...