Postdoc

Mines Paris PSL

Fontainebleau, France

Current - 2025

• Project: Asymptotic preconditioner for extended least squares migration and FWI:
  • Methodology: Development of asymptotic preconditioners for 3D extended least squares RTM based on the validated 2D implementation.
  • HPC: Accelerated 2D/3D wavefield kernels through concurrent wavefield solvers (forward, scattered, dipole, monopole) and time decimation with windowed sinc interpolation to minimize memory use. Ensured NUMA-affinity and cache-optimization for fast memory access.
  • Software: Refactored a legacy codebase into a modular, Git-versioned architecture driven by external namelists and user-provided files, eliminating hardcoded dependencies.
  • Numerical Optimization: Developed a custom reverse-communication optimization library in Fortran, implementing regular and preconditioned solvers (L-BFGS, NLCG, Steepest Descent, and regular quasi-Newton BFGS/DFP).

PhD. researcher

Université Grenoble Alpes

Grenoble, France

2025 - 2022

• Project: Receiver extension strategies for 3D time-domain FWI:
  • Developed and implemented novel time-dependent receiver extension strategies for 3D time-domain Full-Waveform Inversion (FWI) to mitigate cycle-skipping.
  • Integrated these algorithms directly into the core of the SEISCOPE FWI engine (TOYxDAC_TIME) for High-Performance Computing (HPC) environments.
  • Implemented a new reverse-communication optimization library into the SEISCOPE Optimization Toolbox, including global/stochastic algorithms (MCMC, various Simulated Annealing methods, and Particle Swarm Optimization).
  • Validated the newly developed methods on large-scale 3D industrial benchmarks, using an Ocean Bottom Cable (OBC) field dataset from the North Sea.

Geophysical Engineer

GeoEXplo

Algiers, Algeria

2020 - 2017

• Geophysical data acquisition, processing, and interpretation: Refraction seismic, Cross-hole/down-hole seismic, MASW, ReMi, Electrical Resistivity Tomography (ERT), Vertical Electrical Sounding (VES), Ground Penetrating Radar (GPR), and Well logging (resistivity, SP, gamma ray, caliper, optical and acoustic borehole imaging).
• ALT & MSI equipment and WellCAD software: Managed sales, trained new and existing clients, and provided technical support across North Africa (mainly Morocco, Algeria, and Tunisia).

University Teacher

Mines Paris PSL

Paris, France

2026

• Signal processing (école d’ingénieur)

University Teacher

Université Grenoble Alpes

Grenoble, France

2025 - 2022

• Gravimetry, Geodesy and geothermy (L2)
• Programming and development environments (M1)

PhD., Geophysics

Université Grenoble Alpes

Grenoble, France

2025 - 2022

• Subject: Receiver based extension strategies for time-domain 3D full waveform inversion.

Masters, Geophysics

Université Grenoble Alpes

Grenoble, France

2022 - 2020

• Thesis: Receiver extension using a time-dependent relocalization strategy

Masters, Petroleum Geophysics

Université de Boumerdes

Boumerdes, Algeria

2016 - 2014

• Thesis: Structural seismic interpretation of the aptien reservoir in the Guelma region

Bachelor, Geophysics

Université de Boumerdes

Boumerdes, Algeria

2016 - 2011

• Project: 3D land seismic data acquisition (field internship with the national geophysical surveying company ENAGEO)

Benziane, M. Brossier, M. and Métivier, L.; 3D extended-receiver full waveform inversion: parametrization, optimization and OBC field data application. Geophysics, in prep.

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2026

Benziane, M. Brossier, M., Métivier, L. and Sambolian, S.; Time-dependent receiver extension for full-waveform inversion: An alternative extension method for cycle-skipping mitigation. Geophysics 2025;; 90 (6): R389–R412.

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2025

Benziane, M., Brossier, R. and Métivier, L. 3D Extended Receiver Full Waveform Inversion: Complexity Analysis and OBC Field Data Application. In: 87th EAGE Annual Conference & Exhibition, Jun 2026, Volume 2026, p.1 - 5

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2026

Chauris, H. and Benziane, M. Efficient seismic subsurface reconstruction by combining macro-velocity models and quantitative migrated images. In: 87th EAGE Annual Conference & Exhibition, Jun 2026, [Workshop],

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2026

Benziane, M., Brossier, R. and Métivier, L. Time-Dependent Receiver Extension for FWI: A Dynamic Programming Approach. In: 86th EAGE Annual Conference & Exhibition, Jun 2025, Volume 2025, p.1 - 5

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2025

Benziane, M., Brossier, R. and Métivier, L. 3D Time-Dependent Receiver Extension for FWI. In: 86th EAGE Annual Conference & Exhibition, Jun 2025, Volume 2025, p.1 - 5

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2025

Benziane, M., Brossier, R., and Métivier, L.[2025] From dynamic time warping to receiver extension: 3D time-domain FWI application . In: Fifth International Meeting For Applied Geoscience & Energy 1214-1218,

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2025

Benziane, M., Brossier, R., and Métivier, L.: Designing a robust seismic full waveform inversion scheme: an extension approach, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-5885.

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2025

Benziane, M., Brossier, R., Métivier, L. and Sambolian, S. [2024] Full-waveform inversion with time-dependent receiver-extension: An efficient inner loop optimization. In: Fourth International Meeting For Applied Geoscience & Energy. 1038–1042,

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2024

Benziane, M., Brossier, R. and Métivier, L. [2023] Receiver extension strategy using a time-dependent relocalization approach for time-domain FWI. In: 84th EAGE Annual Conference & Exhibition,2023. European Association of Geoscientists & Engineers, 1–5.

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2023

Reviewer for SEG GEOPHYSICS

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Current - 2024

Reviewer for EAGE annual meeting

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Current - 2024

Reviewer for SEG/AAPG IMAGE

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N/A

Current - 2024

EAGE member (silver)

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Current - 2021

SEG UGA student chapter - vice president

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Grenoble, France

2021 - 2020

PhD. student delegate

ISTerre

Grenoble, France

2024 - 2023

• Organizing the 2024 PhD. students congress in Chambéry
• Organizing various activities for the lab PhD students