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Mahir Brahimi

@mahirbrahimi

Reservoir Engineer at Sonatrach and independent Well Testing Instructor, supporting well tests and reservoir performance evaluation.

Algeria
Message

At Sonatrach, I monitor reservoir performance, prepare surveillance reports, and track well deliverability. I also assist with planning and evaluating well tests and support production optimization initiatives.

At SLB, I ran well testing operations across exploration and production wells, including frac flowback and sand management packages. I also operated MPFM (Vx) systems and supported clients with well performance.

As a Well Testing Supervisor at Mediterranean Petroleum Services, I supervised sand management operations and monitored pressure drop, flow rates, solids production, and erosion indicators.

As an independent Surface Well Testing instructor, I deliver technical training in well testing fundamentals, surface testing equipment, sand management systems, and production testing operations, including MPFM basics.

Experience

Work history, roles, and key accomplishments

SE
Current

Surface Well Testing instructor

Self-employed

Feb 2026 - Present (9 months)

Delivering technical training in:
- Well Testing Fundamentals & Surface Testing Equipment.
- Sand Management Systems & Production Testing Operations (Including MPFM basics)

Sonatrach logoSO
Current

Reservoir Engineer

Sonatrach

Sep 2025 - Present (1 year 2 months)

- Monitor reservoir performance (rate trends, pressure behavior, water/gas breakthrough).
- Prepare routine reservoir surveillance reports and performance summaries.
- Track well deliverability and identify underperforming wells.
- Assist in planning and evaluating well tests (build-up, drawdown, DST, production tests).
- Support production optimization and recovery improvement initiatives.

MS

Well Testing Supervisor (SMS)

Mediterranean Petroleum Services

Oct 2024 - Sep 2025 (11 months)

- Supervising daily operation of sand management systems.
- Monitoring system performance parameters (pressure drop, flow rates, solids production, erosion indicators).
- Ensuring timely flushing/cleaning to maximize sand removal efficiency and minimize carryover.
- Coordinate with client supervisors and production engineers to adjust flow rates when excessive sand is detected.

SLB logoSL

Reservoir Performance | Senior Well Testing Engineer

Nov 2021 - May 2024 (2 years 6 months)

Running MPFM (Vx) daily Operation, Helping the client to reach a consistent and optimized Wells.

Running Well test Operations, E&A Wells / Production Wells / Frac Flow Back & Sand Management Packages.

Working on post-frac cleanout campagns for JV BP Equinor- SH, with full compliance to QHSE standards & regulations.

Conducting and leading multiple Drill Stem Test and Bleed off operations with a

SLB logoSL

Well Testing Engineer

May 2018 - Apr 2021 (2 years 11 months)

- Conducting and leading multiple Drill Stem Tests, Bleed off operations and frac flow back campaigns with a documented success.
- HP/HQ Well test design, simulation and executing, with full compliance to QHSE standards.
- Implementing and operating surface data acquisition sets ( SWAN Sets) to monitor Well deliverability.
- Operation expertise of DART / HELIOS HART communication sets

NE

Well Testing Supervisor

NESR

Jan 2021 - Mar 2021 (2 months)

- Performing inline combined Production testing operations for SONATRACH devision of production @ HMD & Joint venture SONATRACH-TOTAL-REPSOL @ GTFT
- DAQ engineer work experience, Operating Fardux (IDEA software) sets in production testing operations.
- Performing inline combined Production testing operations for SONATRACH devision of production @ HMD & Joint venture SONATRACH-TOTAL-REPSOL @ GTFT

Education

Degrees, certifications, and relevant coursework

SL

SLB

Common Data Operations (Data Validation/ Fluid Behavior/PVT)

Issued Jul 2022 · Expired Jul 2022

SL

SLB

Multiphase Data Operations (MPFM / Vx Spectra Technology)

Issued Aug 2022 · Expired Aug 2022

NE

NESR

Fardux IDEA Hybrid Data Acquisition

Issued Jan 2021 · Expired Jan 2021

SL

SLB

Well Testing Field Engineer Level 1

Issued Mar 2019 · Expired Mar 2019

SL

SLB

Well Testing Field Engineer Level 0/0+

Issued May 2018 · Expired Jul 2018

FB

Faculty of Hydrocarbons and Chemistry - University of Boumerdes

Master Degree, Petroleum Engineering

2012 - 2017

Option : Production of Oil & Gas

Tech stack

Software and tools used professionally

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