Investigation of thermal induced damage of deep shale …
2023年3月1日 · Thermal shock caused by injecting cold fluids into hot underground formations, like deep shale hydraulic fracturing and geothermal extraction, is believed to cause …
Investigating fracture initiation and propagation in deep buried shale …
2023年7月13日 · To study the initiation and propagation of fractures induced by thermal shock, a thermal-mechanical (TM) coupled two-dimensional model is developed in the paper. To …
Thermal effects on mechanical and failure behaviors of …
2024年8月24日 · By employing acoustic emission (AE) and digital image correlation (DIC) techniques, the evolution of damage and the mechanism of crack propagation under …
Thermal behavior of minerals in shale and its influence on …
2024年1月1日 · Under the impact of thermal stress as a result of mineral decomposition, thermal fracturing initiates in shale and its pore structures develop to be connected with fractures. In …
Experimental investigation on fracture propagation in shale …
2024年11月8日 · The initiation of microcracks was facilitated by the intensification of local thermal stress in shale, inducing multiple curved fractures and forming a more complex fracture …
Fracture characteristics and thermal damage mechanism of shale …
2024年10月28日 · Moisture content, dielectric constant, and mineral composition were identified as the primary factors influencing the microwave thermal effect on shale. The findings …
Thermal dynamics in deep shale reservoirs: Influences of the …
2024年7月8日 · Modelling fluid injection-induced fracture activation, damage growth, seismicity occurrence and connectivity change in naturally fractured rocks,”
Production induced fracture closure of deep shale gas well under …
Deep shale gas reservoirs have geological characteristics of high temperature, high pressure, high stress, and inferior ability to pass through fluids. The multi-stage fractured horizontal well …
Experimental study on pore structure evolution of thermally …
2024年7月12日 · In this study, thermally immature shales of contrasting organic richness from Rajmahal Basin of India were heated to different temperatures (pyrolysis at 350, 500 and 650 …
Mechanics of thermal spallation and fracturing of dry rocks
2024年2月22日 · This paper reports the results of thermal spallation experiments on specially dried shale samples with 3 bedding orientations (0°, 45° and 90°) under 3 flame temperatures …