Visual fracturing experiment system and method for fracture propagation mechanism of fracture-vuggy carbonate rock

• Main Authors: CHANG XIN, WEI KAI, WAN YANGHUI, WANG XINGYI, GUO YINTONG, MAO HAIJUN
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a fracture-vuggy carbonate rock fracture propagation mechanism visual fracturing experiment system and method. The fracture-vuggy carbonate rock fracture propagation mechanism visual fracturing experiment system comprises a fracture-vuggy sample, a pressurization clamping assembly, a clamping assembly and a camera shooting assembly. The pressurization clamping assembly simulates ground stress conditions of different stratum environments in a pressurization mode, the clamping assembly clamps a fracture-cavity sample, the fracture-cavity sample is a three-dimensional solid model established according to site ct point cloud data, an expansion image of a simulated fracture in the hydraulic fracturing process is captured in multiple angles through a high-speed camera, and the fracture-cavity sample is subjected to fracture simulation. And carrying out distribution characteristic analysis on full-field stress or deformation by adopting a DIC. The hydraulic fracturing experiment process under