Lucas Xan Pimienta

lucas.pimienta@epfl.ch

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+41 21 693 06 17
EPFL › ENAC › IIC › LEMR

Website: https://lemr.epfl.ch

Expertise

Rock Physics
Poroelasticity
Rock Mechanics
Petrophysics

Biography Publications

Awards

- June 2018:
Recipient of the EAGE's «Arie van Weelden Award» 2018 for Young professionals, to be received @ the 80th annual conference of the European Association of Geoscientists and Engineers (EAGE).
https://www.eage.org/en/about-eage/eage-awards/overview-awards/arie-van-weelden-award
- Dec. 2016:
Recipient of the AGU's «MRP Graduate Research Award» 2016, from the Mineral & Rock Physics (MRP) group of the American Geophysical Union (AGU).
https://honors.agu.org/sfg-awardees/pimienta-receives-2016-mineral-and-rock-physics-graduate-research-award/
- Apr. 2015:
«Best Oral presentation» Award @ the 3rd International Workshop of Rock Physics (3IWRP), from the International Association of Rock Physics (IARP).
http://www.rockphysicists.org/in-the-news/3iwrpstudentprizes

Research Statement

My research interests span the physics and chemistry of rocks.
Rocks are complex materials ranging in mineralogy, degree of porosity, cement or micro fracturing, and in saturating fluids. The understanding of their physical properties has direct implications with applied geophysics or civil engineering, but has tight fundamental links with the physics of granular media, tribology or poromechanics.
My main research directions and objectives aim for developments of efficient geothermal energy and CO2 geological storages.
Additionnal interests are in finding innovative and fun ways to apply rock physics.

Education

Ph.D.

| Earth Sciences

2015 – 2015 Ecole Normale SupÃ©rieure
Directed by Prof. Yves GuÃ©guen & Dr. JÃ©rÃ´me Fortin

Eng. D.

| Geophysics

2011 – 2011 Ecole et Observatoire des Sciences de la Terre

M.Sc.

| Earth Sciences

2011 – 2011 University of Strasbourg

Professionals experiences

Post-Doctoral fellow ENS-Total

2015–2016

Ecole Normale SupÃ©rieure

Wagemann Post-Doctoral Fellow

2016–2017

RWTH Aachen

EPFL and Marie Curie Fellow

2017–2019

Ecole Polytechnique FÃ©dÃ©rale de Lausanne

SCCER-SoE Post-Doc fellow

2019–2019

Ecole Polytechnique FÃ©dÃ©rale de Lausanne

SNF-Spark Grantee

2019–2019

Ecole Polytechnique FÃ©dÃ©rale de Lausanne

Publications

Journal Articles

2024

Introduction to special section on the rock physics contribution to the energy transition challenge

I. H. Falcon-Suarez; L. Adam; H. Marin-Moreno; G. Papageorgiou; L. X. Pimienta

Geophysical Prospecting

2024-04-20

DOI : 10.1111/1365-2478.13521

Lucas Xan Pimienta

Expertise

Awards

Research Statement

Education

Ph.D.

Eng. D.

M.Sc.

Professionals experiences

Publications

Journal Articles

2024

Introduction to special section on the rock physics contribution to the energy transition challenge

2021

Hydro-mechanical coupling in porous rocks: hidden dependences to the microstructure?

2019

Variations in elastic and electrical properties of crustal rocks with varying degree of microfracturation

Time-dependent deformations of sandstone during pore fluid pressure oscillations: implications for natural and induced seismicity

Seismic Dispersion and Attenuation in Fluid-Saturated Carbonate Rocks: Effect of Microstructure and Pressure

Evolution in Seismic Properties During Low and Intermediate Water Saturation: Competing Mechanisms During Water Imbibition?

2018

Anomalous Vp/Vs ratios at seismic frequencies might evidence highly damaged rocks in subduction zones

Reply to "Comment on Ultrasonic monitoring of spontaneous imbibition experiments: precursory moisture diffusion effects ahead of waterfront by Y. Kovalyshen"

The development of stress-induced anisotropy during cyclic loading of Westerly granite

Comparative study on the Thermal and Elastic properties of sandstones: Role of microstructure, mineralogy and water saturation

2017

Supercritical CO2 injection and residence time in fluid-saturated rocks: Evidence for CO2 and mineral dissolution and effects on rock integrity

Elastic Dispersion and Attenuation in Fully Saturated Sandstones: Role of Mineral Content, Porosity, and Pressures

Dispersion and attenuation measurements of the elastic moduli of a dual-porosity limestone

Ultrasonic monitoring of spontaneous imbibition experiments: Acoustic signature of fluid migration

Ultrasonic monitoring of spontaneous imbibition experiments: Precursory moisture diffusion effects ahead of water front

Pressure-dependent elastic and transport properties of porous and permeable rocks: Microstructural control

New method for measuring compressibility and poroelasticity coefficients in porous and permeable rocks

2016

Effect of fluids and frequencies on Poisson’s ratio of sandstone samples

Modelling the drained/undrained transition: effect of the measuring method and the boundary conditions

Dispersions & Attenuations in a fully saturated sandstone: Experimental evidence for fluid flows at different scales

Effect of supercritical CO2 on carbonates: Savonnieres sample case study

Frequency, pressure, and strain dependence of nonlinear elasticity in Berea Sandstone

2015

Study cases of thermal conductivity prediction from P-wave velocity and porosity

Bulk modulus dispersion and attenuation in sandstones

Experimental study of Young’s modulus dispersion and attenuation in fully saturated sandstones

2014

Prediction of rocks thermal conductivity from elastic wave velocities, mineralogy and microstructure

Experimental results on the combined effects of frequency and pressure on the dispersion of elastic waves in porous rocks

Investigation of elastic weakening in limestone and sandstone samples from moisture adsorption

Conference Papers

2018

Evolution in physical properties of quartz-bearing rocks with evolving degree of microfissuration

Evolution in physical properties of quartz-bearing rocks with evolving degree of micro-fissuration

Posters

2020

From elastic to anelastic properties of rocks: Role of strain amplitudes

2019

Fault reactivation during pore pressure oscillations

Fault reactivation during pore pressure oscillations

2018

Time-dependent deformations of sandstone during fluid pressure oscillations: implications for natural and induced seismicity

Evolution in physical properties of crustal rocks submitted to large temperatures

Talks

2020

Influence of the initial damage on fracture toughness and subcritical crack growth in a granite rock

2018

Evolution in physical properties of quartz-bearing rocks with evolving degree of microfissuration

Time-dependant deformation of a low porosity sandstone subjected to pore pressure oscillations

Experimental study of reservoir seismicity using different injection strategies