Can I read Notes on Propagation of 3D Buoyant Fluid-Driven Cracks on EtoBox?

Notes on Propagation of 3D Buoyant Fluid-Driven Cracks by Garagash, Dmitry I.; Germanovich, Leonid N. is a scholarly article available to read on EtoBox.

What is Notes on Propagation of 3D Buoyant Fluid-Driven Cracks about?

Magma-driven fractures are the main mechanism for magma emplacement in the crust. A fundamental question is how the released fluid controls the propagation dynamics and fracture geometry (depth and breadth) in three dimensions. Analog experiments in gelatin have shown that fracture breadth remains nearly stationary when the process in the fracture head (where breadth is controlled) is dominated by solid toughness, whereas viscous fluid dissipation is dominant in the fracture tail. We model propagation of the resulting buoyant, finger-like fracture of stationary breadth with a slowly varying opening along the crack length. The elastic response to fluid loading in a horizontal cross-section is local and can be treated similarly to the classical Perkins-Kern-Nordgren (PKN) model of hydraulic fracturing. The propagation condition for a finger-like crack is based on balancing the global energy release rate due to a unit crack extension with the rock fracture toughness. It allows us to relate the net fluid pressure at the tip to the fracture breadth and rock toughness. Unlike laterally propagating PKN fracture, where breadth is known a priori, the final breadth of a finger-like verticall

Author

Garagash, Dmitry I.; Germanovich, Leonid N.

Published

2022

Language

EN