Team
GIG - Géologie de l'Ingénieur et Géomécanique
Biography
Laurent Gerbaud is a researcher specializing in drilling technologies and rock mechanics, with particular expertise in optimizing drilling performance in complex geological environments. His work focuses on improving drilling techniques for deep geothermal resources, particularly in hard granitic formations, where he explores innovative methods combining percussion, high-pressure water jetting (HPWJ), and advanced numerical modeling. His research incorporates experimental laboratory approaches, finite and discrete element method (FDEM) simulations, and artificial intelligence tools to predict and optimize interactions between the drilling tool and the rock. Laurent Gerbaud has contributed to European projects such as ORCHYD, where his work has demonstrated significant gains in penetration rates and energy efficiency, while studying the impact of operational conditions (confinement pressure, temperature, etc.) on rock fracturing mechanisms.
Publication(s)
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2025
Three-dimensional numerical study of DTH bit-rock interaction with HPWJ downhole slotting: Influence of bit design and bottom hole geometric conditions on rock breaking efficiency in percussive drilling DOI : 10.1016/j.rockmb.2024.100169
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2025
Correlation of Damage in Rocks Dynamically Loaded by Percussive Tools Using Piston Coefficient of Restitution (COR) DOI : 10.1007/s00603-024-04303-9
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2025
Optimised hammer drilling bit design using artificial neural networks trained by FDEM-generated data DOI : 10.1016/j.jrmge.2025.02.003
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2025
ORCHYD: Combination of High-Pressure Water Jet and Percussion to Improve Drilling Performance in Hard Rocks DOI : 10.2118/223793-MS
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2025
Domain Generalization for Time Series: Enhancing Drilling Regression Models for Stick-Slip Index Prediction
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2025
A Study of Rock Breakage Under Extreme Submerged Confining Pressure: Can DTH Hammer Drilling Deliver DOI : 10.1007/s00603-025-04626-1
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2024
Enabling Rapid Bit Design Improvements Through Automatic Extraction of Geometric Information of Used Drill Bit from Videos Captured on a Mobile Device DOI : 10.2118/220828-MS
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2024
A Study of Rock Breakage under Extreme Submerged Confining Pressure: Can DTH Hammer Drilling Deliver? DOI : 10.56952/ARMA-2024-0788
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2024
Destruction of Rock Microstructure: an Experimental and Numerical Modelling Study of High-Pressure Water Jet Rock Cutting under Subsurface Confining Pressure Conditions DOI : 10.56952/ARMA-2024-1005
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2024
Where does the energy go in percussion drilling? FDEM's answer DOI : 10.56952/ARMA-2024-0952
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2024
Experimental analysis of rock fragmentation induced by single percussive impact DOI : 10.1016/j.ijrmms.2024.105843
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2024
Chipping mechanisms in rotary-percussive drilling: Experimental insights into the role of the median crack as precursor of the dynamic fragmentation process DOI : 10.56952/ARMA-2024-0835
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2024
Rapid Bit Design Improvement Through Automatic Extraction of Drill Bit Geometric Information from Videos Captured on a Mobile Device DOI : 10.2118/220828-MS
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2024
Combining Machine-Learning and Physics-Based Models to Mitigate Stick-Slip in Real-Time DOI : 10.2118/217750-MS
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2024
Thermal Effects on Drilling Performance in Hot Dry Rock DOI : 10.2118/217718-MS
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2024
Real-Time Stick-Slip Mitigation Using Combined Machine Learning and Physics Based Techniques DOI : 10.2523/IPTC-24509-MS
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2023
Influencing Factors in Rock Cutting Using High Pressure Water Jets Under Submerged Downhole Conditions DOI : 10.56952/ARMA-2023-0780
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2023
Enhancing drilling performance of mud hammers by combining high pressure water jets slotting DOI : 10.56952/ARMA-2023-0784
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2022
Percussive Drilling: Experimental and Numerical Investigations DOI : 10.1007/s00603-021-02707-5
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2022
Novel environmentally friendly nano-additives for drilling fluids
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2022
Drilling Inside Fiberglass Casing, Wear Prediction and Management in Geothermal Wells DOI : 10.2118/209848-MS
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2022
An Experimental Investigation of Drilling Performance Improvement Using Reaming While Drilling DOI : 10.1115/1.4052611
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2021
A phenomenological transient model of bit foundering DOI : 10.1016/j.petrol.2020.108299
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2021
On the influence of tool shape on percussive drilling in hard rocks
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2019
Full-scale experimental investigation of the performance of a jet-assisted rotary drilling system in crystalline rock DOI : 10.1016/j.ijrmms.2019.01.011
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2018
Mud hammer drilling in hard formations: Bit design improvements lead to ROP increase DOI : 10.2118/189592-ms
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2018
Mud hammer drilling in hard formations: Bit design improvement leads to increased rate of penetration DOI : 10.3997/2214-4609.201802933
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2017
High-power mudhammer: A promising solution for hard formations drilling DOI : 10.2118/188579-ms
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2016
Independent analyses of cutting and friction forces applied on a single polycrystalline diamond compact cutter DOI : 10.1016/j.ijrmms.2016.03.002
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2016
Quality and wear behavior of graded polycrystalline diamond compact cutters DOI : 10.1016/j.ijrmhm.2015.12.009
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2016
Experimental investigations of rate effects on drilling forces under bottomhole pressure DOI : 10.1016/j.petrol.2016.09.025
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2013
A study on PDC drill bits quality DOI : 10.1016/j.wear.2012.12.026
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2012
PDC bit steerability modeling and testing for push-the-bit and point-the-bit RSS
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2011
Mitigating stick-slip in deep drilling based on optimization of PDC bit design DOI : 10.2118/139839-ms
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2007
Drilling without WOB: Dream or reality? An effective field test by total angola
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2006
PDC bits: All comes from the cutter/rock interaction DOI : 10.2523/98988-ms
PhD supervision
- 2018 Percussive drilling in extreme conditions: experiments and numerical modeling ALDANNAWY Houssam Aldine