Publication

Effect of fluid viscosity on fault frictional behaviour

2017
Posters

Abstract

Understanding fluids viscosity effects on fault dynamics can shed light on the induced seismicity in engineering reservoirs where fluids with viscosity ranking from 1mPa s-1 to 1000 mPa s-1 are also injected during hydraulic fracturing process in order to increase the permeability. Here, we examine the mechanisms coming into play in presence of viscous lubricant film between the rock slip surfaces during both earthquake nucleation (slip rate from ms-1 to mm s-1) and propagation (mm s-1 to m s-1) where mixed lubrication and fully lubricated regime might be activated, using rotary shear tests on precut samples of Westerly granite.

Official source

https://infoscience.epfl.ch/entities/publication/0abc17fa-1dfd-4a27-9d1f-bf85c1c67f83

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

2017
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0abc17fa-1dfd-4a27-9d1f-bf85c1c67f83

About this result

Related concepts (32)

Fluid mechanics

Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them. It has applications in a wide range of disciplines, including mechanical, aerospace, civil, chemical, and biomedical engineering, as well as geophysics, oceanography, meteorology, astrophysics, and biology. It can be divided into fluid statics, the study of fluids at rest; and fluid dynamics, the study of the effect of forces on fluid motion.

Lubrication

Lubrication is the process or technique of using a lubricant to reduce friction and wear and tear in a contact between two surfaces. The study of lubrication is a discipline in the field of tribology. Lubrication mechanisms such as fluid-lubricated systems are designed so that the applied load is partially or completely carried by hydrodynamic or hydrostatic pressure, which reduces solid body interactions (and consequently friction and wear). Depending on the degree of surface separation, different lubrication regimes can be distinguished.

Newtonian fluid

A Newtonian fluid is a fluid in which the viscous stresses arising from its flow are at every point linearly correlated to the local strain rate — the rate of change of its deformation over time. Stresses are proportional to the rate of change of the fluid's velocity vector. A fluid is Newtonian only if the tensors that describe the viscous stress and the strain rate are related by a constant viscosity tensor that does not depend on the stress state and velocity of the flow.

Related publications (20)

Effect of fluid viscosity on fault frictional behaviour

Chat with Graph Search

Thermodynamics and Exotic Transport Phenomena in Emerging Materials

Capillarity and flow at textured interfaces

The Role of Stress Distribution in Seismic Cycle Complexity of a Long Laboratory Fault