Summary
Overview
Work History
Education
Skills
Affiliations
Timeline
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TOMBEUH DOKOULA

N'Djamena,ND

Summary

/SENIOR TECHNICAL SUPPORT SPECIALIST PROFESSIONAL (Oil & Gas)

  • A Seasoned Senior Technical Support Specialist at Baker Hughes known and named as man of complex challenging issues resolver with over 4+ years' experience of achievement in exceeding customer expectations leading to many awards recognitions. With a proven technical support track ability and skills record in consistently troubleshooting 85% of all technical issues by quickly, timely, and efficiently resolving 55% of issues related to customer downtime, exceeding metric goals and improving customer satisfaction and trust. Actively looking to obtain a position where technical and customer service skills can be utilized while working in an environment where the positive job performance and strong work ethic is appreciated.

Overview

22
22
years of professional experience

Work History

Senior Technical Support Specialist Professional

Baker Hughes GE
N'Djamena, ND
10.2019 - 10.2023

Senior Technical Support Specialist Professional for Customer Services with Master Degree's in Chemistry, proven Achievements and Responsibilities below can help your company to grow:

Key Achievement:

  • Implemented comprehensive safety protocols, lead comprehensive safety program, reducing workplace incidents by 25%
  • Prevented 100%production lost and plant shut-down by innovating, blending two demulsifires with xylen and introducing new costly effective Demulsifier meeting 1% pipeline oil/water specifications
  • Upgraded flocculent injection system by designing and successfully installing bypass flow meter which causing recurrent skid trips to resolve Total Oil and Grease TOG issue and maintain field with 10% production
  • Initiated, assess, investigate, redesign and restore Oily Water Lift Station OWLS biocide and oxygen scavenger injection systems for corrosion mitigation and bring back 2% chemical cost revenue
  • Successfully resolved production separation issue due to Rag Layer at vessels interface, and bring back vessels operation performance to 82% interface, obtain oil with 5% BS&W requirement to Crude Oil Firing calcium removal and send good oil quality with 0.4% BS&W as fuel to the Turbines as well as engage the customer to a holist approach of solving this issue
  • Efficiently conduct laboratory testing, analysis and recommend injection of diesel to crude oil stream to solve oil foamy and viscosity transfer challenges to turbines, to restore crude oil firing as fuel for turbines and reduce diesel consumption cost by 65%
  • Successfully testing and selecting best Excalibur with treatment ranges of 180ppm – 240ppm to treat Crude Oil Firing, achieving 2ppm calcium content KPI and maintain 0.4% BS&W for better flash point as well as introducing effective corrosion inhibitor to mitigate acidity of Excalibur and maintain 3mpy as corrosion rate
  • Initiated, investigate and mitigate wet gas system PGC with Flow Assurance and Integrity Management, foam and corrosion issues by identifying and successfully inject diesel to mitigate foam and maintain vessels to 80% operation level, introduce corrosion inhibitor to mitigate CO2 corrosion below 3mpy
  • Implementing and performing Annual proactive field and plant chemical treatment review for all chemicals to identification problems, reporting findings with recommendation to improve, enhance separation and maintain smooth production with 80ppm to 110ppm; Field chemical compatibility issues resolution with new application recommendation
  • Design and successfully executed Scale Inhibitor Squeeze Treatments with Demulsifier for gas wells facing both scale and emulsion issues, ultimately prevent 85% flow line restriction, improving oil/water separation to enhance productivity
  • Responsibilities:
  • Oil and Gas production chemistry and treatment, leading all projects for new chemical selection and new or upgrading chemical injection system;
  • Design chemical process injection system that operate safely and adhere to HSE and quality requirement
  • Ensured adherence to all industry regulations, compliance and safety protocols and guidelines while performing technical support duties, contributing to a secure HS&E responsible workplace
  • Provided training sessions and workshops to end-users and colleagues to enhance their understanding of technical processes and equipment, promoting safety and efficiency
  • Coaching subordinates through education, assessment, development as needed, and teamwork
  • Conducted technical training to all customer level to present different products with their applications, cost and benefits its
  • Resolve all technical issues related to production chemistry as result of chemical or physical changes; Achieving and exceeding customer satisfaction, maintaining high performance, maintaining reliability and improve productivity
  • Collaborated with cross-functional teams to optimize operational processes, including new chemical injection technology with innovative injection methodology to enable minimizing cost, increasing efficiency, maximizing performance and finally maximizing productivity
  • Focus on customer Process Chemical Management, chemicals consumption trends and inform product line team to drive product development
  • Assist in preparation of annual laboratory operating budget
  • Deliver expert guidance and support to internal teams and external clients in addressing laboratory complex technical issues related to oil and gas equipment and processes
  • Laboratory Chemicals blending or modification to address specific issues
  • Identify new business opportunities and partnerships to expand products
  • Oversaw of all technical aspects of oilfield from well side to process plant, for problem identification, production chemistry complex issues solving, though technical support orientations, production optimization with chemical cost reduction, chemicals injection system design, chemicals inventories;
  • In daily basis get feedback from customer reagarding Production process Chemicals treatment to successfully and efficiently address issues related to oil and gas Production Optimization, Flow Assurance, process System/pipeline Integrity Management, Chemicals inventory management and waste management.
  • Participated in Effective cost reduction Project within global industry, particularly in chemicals cost-improvement projects focusing on Front-End analysis
  • Identifying Factors that affect choice of costly effective production chemicals
  • Laboratory Management with regard of standards ISO/IEC17025 and ISO900, Laboratory Information Management System(LIMS), and Problem Solving activities, laboratory chemical selection, chemicals blending in addressing and resolving complex issues related to production process chemical treatment, and production system commissioning markets
  • Conducted bi-annually Chad-Cameroon,TOTCO-COTCO Pipeline Internal Corrosion monitoring, to investigate, Monitoring internal corrosion activities and share technical report with recommendations for Corrosion Inhibitor and Biocide pig pill applications
  • Prepare and present Monthly Corrosion to process corrosion engineers and operation managers
  • Utilized advanced monitoring tools and data analysis techniques to proactively identify potential issues, streamline processes, and optimize oil and gas operations
  • Maintain all Equipments to its full capacity and ready to used at all time to minimize lost time
  • Conducted Monthly, Quarterly and Annually all chemicals inventory, update inventory sheet with all trends.

Field and Laboratory Supervisor

Baker Hughes GE
N'Djamena, ND
11.2010 - 10.2018
  • Ambitious Field and Laboratory Supervisor Supporting 85% of all field chemical injection systems and laboratory operations to achieve production targets, providing non delayed laboratory services for customer satisfaction
  • Key Achievement:
  • Conducting Central African product line customer technical training after translating all modules from English to French that help customers to understand production chemical applications and increase business for about 15%;
  • Achieving 2016 Safety Performance that lead to Safety Award recognition given by customer
  • Committed and dedicate to stepping up and successfully performing and completing Tracer Sampling 0.0% incident and Motor Vehicle Accident, MVA
  • Reinforced corporate responsibility protocols, conducted lab testing to address Rag Layer issues, Pipeline oil quality and specification and improved production quality for Crude Firing to Turbines through holistic approach
  • Daily chemicals monitoring and produced water analysis to maintain residual oil in water 250ppm to 300ppm KPI
  • Executed aggressive solutions to resolve oil/water separation, to maintain 1% BS&W in pipeline oil quality
  • Oversaw assessment and redesign of chemical injection systems and actively participated in production meetings
  • Responsibilities:
  • Oversee work of field and laboratory personnel engaged in performing routine and specialized technical procedures, including planning laboratory work evaluating work performed and handling procedural and technical problems
  • Design appropriate work schedules for field and laboratory workforce and plans daily work assignments to maintain personnel complement for field and laboratory efficiency
  • Ensured adherence to all industry compliance, regulations and safety guidelines and protocols while performing technical support duties, contributing to secure and environmentally responsible workplace
  • Provided training sessions and workshops to end-users and colleagues to enhance their understanding of technical processes and equipment, promoting safety and efficiency
  • Coaching subordinates through education, assessment, development as needed, and teamwork
  • Develop risk assessment models to prevent environmental impacts that contributed to creation of new laboratory procedures and authored high-level technical reports; Ensure laboratory workforce complete required quality checks and audits
  • Develop and implement quality control programs to ensure reliability of testing procedures, proper function of laboratory equipment and compliance with Country Environment regulations; prepare and maintain applicable records
  • Sampling oil from all new Chad oilfield, packaging, labeling with signed transport documentation according to IATA Dangerous Good Transportation
  • Lead continuous improvements of laboratory services to customers including development of standard operating procedures for customer laboratory equipment and analytical test methods according to site wide management systems requirements
  • Conducted comprehensive performance evaluations of oil and gas wells and production facilities, utilizing data-driven insights to enhance overall efficiency and output
  • Coordinate and carry out test method validation including quality assurance work for analytical applications under customer requirement in compliance with ISO/IEC 17025
  • Supervising samples collection as required by sampling procedure including but not limited to: mixed phase liquids , Vaporized LNG, High Pressure feed gasses, and Produced Water
  • Receive and login samples to test and analyze above-mentioned components in timely manner with high degree of accuracy and efficiency , record laboratory results and generate summary reports as well as discuss out of specification results with operations and engineering for approvals
  • Support quality initiatives by overseeing, assessing and redesign all chemical injection systems and upgraded them to improve and ensure product meets or exceeds customer expectations
  • Carrying out timely and reliable routine and non-routine tasks using combination of different laboratory techniques to meet customer demands, to manage overtime, to minimize inventory, and to reduce costs;
  • Prepare technical reports reflecting laboratory log book rank of work, procedures used and test results; coordinate preparation of reports and analyses setting out progress, adverse trends and appropriate recommendations or conclusions
  • Provide advanced troubleshooting by diagnosing, analyzing, interpreting/consulting, verifying of sample quality and test results to resolve technical problems with minimal downtime , and stay up to date with and implement latest technical management developments including new lab procedures
  • Deliver expert guidance and support to internal teams and external clients in addressing laboratory complex technical issues related to oil and gas equipment and processes
  • Laboratory Chemicals blending or modification to address specific issues
  • Maintain laboratory equipment inventory of material supplies, calibration readiness by performing daily Quality Control Standards (QCs) and keeping detailed records of all QC data in compliance with Quality Management System (QMS) as well as carry out calibration of Spectro Oil and gas chromatographic, Clean and maintain standard laboratory environment
  • Participated in emergency response teams and procedures, demonstrating commitment to safety and rapid problem resolution in critical oil and gas industry situations.

Senior Technical Service and Sell Representative

Baker Hughes
09.2008 - 10.2012
  • Focused annually on Technical Service to conduct products selection by bottles testing series of chemicals to select costly effective demulsifiers, reverse emulsion brakers and flocculants, report to Product Line to maximizing sales which made company more competitive and enable to capture 3% more business that never touched in previous year
  • Manage preventive maintenance program that consisted of sampling, reviewing and interpreting oil analysis on produced wells, process plant and pipeline on bi-monthly basis
  • Analyzed laboratory data, composed technical reports, and presented tactical recommendations to management team to enhance field development, efficiency, and risk mitigation to maintain business contract with customer
  • Keep management informed by submitting activity and results reports, such as daily call reports, weekly work plans and monthly and annual sales analyses
  • Monitor competition by gathering current marketplace information on pricing, new products, delivery schedules
  • During Tender, strategically take business from competitors, which resulted in very profitable gain in product line, industrial oils business chemical applications and increase revenue
  • Determine customer's needs, provide complete and appropriate solutions to achieve sales goal and maximize customer satisfaction
  • Developed and implemented scalable strategies for routine field chemical operations, overseeing their execution
  • Held monthly corrosion management meetings and provided technical guidance
  • Identifying potential customers, developing relationships with them, and promoting company's product
  • Focus sales efforts by analyzing customer demand and potential demand in related markets sectors
  • Service existing accounts, obtains orders, and establish new accounts by planning and organizing daily work schedules to explore existing or potential sales opportunities
  • Conducted MIC corrosion survey for production process and pipeline, selecting biocides and recommending batch treatments to increase 6% revenue annually
  • Achieved successful corrosion monitoring, testing, and surveillance in oil/water and gas systems.

Field Technician IV

Baker Hughes, Djamena
10.2007 - 09.2008

Assists in installing of chemical pumps, testing, adjusting chemical rates, and repairing chemical equipment, regulators, and on customer's establishments by performing following duties

  • Use number of interpersonal skills to communicate and interact with customers every day, and also use digital tools to both manage field service activities and help adapting to client need's different fields
  • Efficiency and excellent time management by setting goals to optimize service call procedures, reduce downtime, or improve logistical planning that are vital
  • These objectives not only boost personal productivity but also contribute to overall efficiency of service operations
  • Expanded chemical services, boosting revenue and professional development through targeted training programs for core and specialized products
  • Implemented on job training to enhance proficiency in advanced offerings
  • In charge for troubleshooting equipment technical issues on all production site where chemicals are injected
  • Follow blend sheets, batch records and outlined procedures in production of essential chemical blends and lot combinations
  • Supervised bottle tests to ensure precise product selection and dosage rates for field trials, troubleshooting oil treatment issues, and improving water quality
  • This included demulsifier and water clarifier bottle testing
  • Managed corrosion monitoring, conducting bacteria tests for Sulfate Reducing Bacteria, Acid Producing Bacteria, General Aerobic Bacteria, and Nitrate Reducing Bacteria
  • Engaged in pigging program, enabling solids sampling, sessile and planktonic bacteria sampling, and assessing iron percentages
  • Conducted flow assurance activities, including paraffin or wax testing, asphalten dispersant tests, and identification tests
  • Prepared scale identification tests, recommended chemicals for squeeze treatments, and established calibration curves for scale residual monitoring.

Field Technician III

Baker Hughes
N'Djamena, ND
09.2006 - 10.2007
  • Utilized safety practices with no complaints or accidents
  • Adhered to safety protocols by implementing routine tests and ensuring accurate and safe equipment handling
  • In daily basis, conduct field visits in all chemicals injection sites to identifies and troubleshoot malfunctions chemical injection systems and conduct or schedules repairs
  • Collaborated with other field technicians to resolve complex technical issues
  • Proven Field visits by developing detailed service reports to document service visits, issues, and troubleshooting actions, logs and tracks maintenance activities to deliver desired customer service experience
  • Provide service and customer support during field visits or dispatches to drive service success that improves customer satisfaction, maximizes customer retention and increases profitability
  • Operate field service vehicle in safely manner and use field automation systems
  • Calibrated new and existing equipment for optimal performance
  • Follow all company's filed procedures and protocols
  • Build positive relationships with customers
  • Ability to troubleshoot, test, repair and service all technical injection equipment
  • Diagnose errors or technical problems on chemical injection systems and determine proper solutions and then produce timely and detailed service reports
  • Collaborated with team members to complete complex installations, ensuring seamless integration with existing infrastructure
  • Conducted enterprise-level training in project management, assertive communication, leadership, behavior skills, and industry finance (Baker Value Added - BVA)
  • Efficiently managed all laboratory testing, including Oil (BS&W, Viscosity, API, flash point, pour point), Water (chemistry, analysis, bacteria testing), and Gas (H2S, paraffin, CO2, iron count)
  • Held responsible for compiling data for Gas Compressor and Vapor Recovery Unit surveys, covering pH, CO2, dissolved oxygen, soluble iron, H2S, and temperature.
  • Enhanced customer satisfaction by providing efficient and timely technical support for various issues

Field Technician II

Baker Hughes, N'Djamena
09.2005 - 09.2006
  • Led revenue-boosting efforts through extensive training programs and expanding product and service offerings
  • Conducted enterprise-level training, fostering future leaders and enhancing product knowledge
  • Applied field expertise to analyze Free Water Knockout Tanks, identifying gas, oil, and water phases
  • Authored detailed reports and performed thorough oil testing from Knockout Tanks to Emulsion Tanks and Pipeline for Basic Sediment and Water (BS&W)
  • Evaluated injected water, assessing parameters like pH, Chloride, Solubility, Total Iron, Dissolved Oxygen, Alkalinity, Total Hardness, Calcium Iron, Conductivity, Turbidity, Total Suspended Solids, Membrane Filtration, and Gas Testing levels.

Field Technician

Pride Forasol, Drilling Company
11.2004 - 09.2005

• Successfully surpassed business and development objectives while implementing Key Performance Indicators (KPIs) and integrating ongoing process enhancements.
• Achieved the proficiency criteria for technical, leadership, behavioural, and business competencies as mandated.
• Conducted testing for Basic Sediment Water and emulsion and supervised H2W assessments for newly drilled wells.

Field Technician I

Baker Hughes, N'Djamena
11.2004 - 09.2005
  • Utilized safety practices with no complaints or accidents
  • Successfully surpassed business and development objectives while implementing Key Performance Indicators (KPIs) and integrating ongoing process enhancements
  • Adhered to safety protocols by implementing routine tests and ensuring accurate and safe equipment handling
  • Communicated with supervisor to report progress, discuss issues and seek guidance
  • Conducted testing for Basic Sediment Water and emulsion and supervised H2W assessments for newly drilled wells.
  • Continuously expanded skill set by pursuing relevant certifications and staying current on industry trends
  • Kept detailed records of field measurements and data

Rig Electrician

Pride Forasol
N'Djamena, ND
08.2001 - 09.2004

• Conducted electrical installations and maintenance on offshore drilling rigs, ensuring functionality and compliance with safety regulations.
• Troubleshot and repaired electrical systems to minimize downtime and maintain uninterrupted operations.
• Collaborated with rig crew members to plan and execute electrical projects, prioritizing tasks to meet production goals efficiently.
• Conducted routine inspections and preventative maintenance on electrical equipment to extend the lifespan of critical assets.

Education

Master of Science - Physics and Chemistry

University of Bangui
Central Africain Republic
08.2001

Bachelor of Science - Physics and Chemistry

University of Bangui
08.1999

High School Diploma -

College Saint Charle Lwanga
09.1994

High School Diploma -

College Saint Charle Lwanga
09.1994

Certification - Certified in Dangerous Goods Transportation By Air

QHSE Solution Ltd
01.2008

TRAINING Certifications - Flow Assurance

Training Center
07.2006

Certificate of Completion of “Basic Oil Field” - Basic Oil Field, Consultative Sells Skills, Flow A

Training Center
07.2006

Certificate of completion of “Consultative Sells Skills” in Egypt - Consultative Sells Skills,

Training Center
07.2006

Certificate of completion of “Flow Assurance” in Egypt - Flow Assurance

Training Center
07.2006

Certificate of completion of “Corrosion” in Dubai - Corrosion

Training Center
06.2009

Certificate of completion of “Microbiology” in Dubai - Micribiology

Training Center
06.2009

Certificate of completion of “Gas Conditionning” in Dubai - Gas Conditionning

Training Center
06.2009

DUBAI TRAINING - Corrosion, Microbiology, Gas Conditioning

Training Center
06.2009

Certificate of completion of “Foamers –Upstream” in Dubai - Foamers

Training Center
09.2010

Certificate of completion of “Hydrate Inhibitor – Upstream” in Dubai - Gas Conditionning

Training Center
10.2018

Certificate of completion of “Gas Conditionning – Upstream” in Dubai - Gas Conditionning

Training Center
09.2010

Certificate of completion of “Emulsion Water Clarification – Upstream” in Dubai - Emulsion Water Clarifier

Training Center
09.2010

Certification - • Team Lead Program

Training Center
06.2012

Certification - Gas Conditionning

Training Center
10.2018

RESTOR – Restor Wellbore Remediation Program - Restor Wellbore Remediation Program

Training Center
10.2018

Chemical Application - Offshore - Offshore Chemical Application

Training Center
10.2018

Skills

  • SKILLS & COMPETENCIES
  • Excellent Customer technical service issues focus
  • Fluent In English and good verbal and written
  • Excellent Technical troubleshooting and diagnostics communication skills
  • Complex problem solving ability
  • High-level costumer service technical orientations
  • Process chemical design & optimization solution
  • Ability to identify upsell opportunities
  • Client relationship management
  • Analytical and problem solving abilities
  • Ability to work under pressure
  • Adept in writing technical reports and scopes of work
  • Strong interpersonal and communication skills
  • Management and technical queries
  • Excellent communication skills
  • Technical documentation and guide creation
  • Coaching, Assessment and Competency
  • Business Process Improvement
  • Emotional intelligence
  • Strong Production Chemical applications skills
  • Strong orientation towards teamwork and collaboration
  • Production Process improvement mindset
  • Effective Interpersonal communication skills
  • Good knowledge for industry standards such as: API
  • Assertive and effective negotiator
  • ASTM, ISO/IEC17025, ISO9001
  • Strategic Planning
  • Time management and prioritization
  • Collaboration and teamwork
  • Ability to plan and organize workflow in efficient manner
  • Adaptability
  • New product introduction
  • Active listening
  • Data analysis and interpretation
  • Strong communication and organization skills
  • Accustomed to handle multiple projects concurrently
  • Quality service standardization
  • Leadership
  • Effective projects coordination with lost prevention
  • Quality Control
  • Technical training delivery
  • Quality Assurance
  • Risk management and mitigation
  • COMPUTER SKILLS
  • CMS Windows operating system, MS Office application and various intranet application
  • Computer advance level knowledge

Affiliations

Baker Hughes Chad “ExxonMobil 2019, Tracer Sampling successfully completed in Kome ESSO Chad field - DRIVING CUSTOMER OUTCOMES AWARD” Baker Hughes Chad “ExxonMobil/ESSO October 2020, Great Contribution to ESSO Operations at Kome to restore crude firing as fuel for turbines and reduce diesel consumtion cost – COLLABORATE AWARD” Baker Hughes Chad Assessed, investigated, redesigned and restored the ExxonMobil Oily Water Lift Station OWLS biocide system injection – Lead Award in Aug 2021. Baker Hughes Chad “ExxonMobil Chad, successfully assessed and conduct Lab testing to address Rag Layer issue to increase production, obtain good oil quality for Crude Firing to the Turbines as well as engage the customer to a holist approach of solving this issue- CARE AWARD I February 2021” Baker Hughes Chad “ExxonMobil Chad, Miandoum Total Oil and Grease TOG resolution by upgrading the polisher FLW160 injection system – COLLABORATE AWARD in May 2022”TECHNICAL PURVIEW Upstream Production Optimization Upstream Flow Assurance Production System and Pipeline Integrity Management Chemical Process Injection Design and Implementation Research and Development in Chemical Laboratory Blending Injection Equipment Upgrade and Safety Improvement Quality Control System Development Acid Stimulation Drag Reducing Agents Chemical cost reduction

Timeline

Senior Technical Support Specialist Professional

Baker Hughes GE
10.2019 - 10.2023

Field and Laboratory Supervisor

Baker Hughes GE
11.2010 - 10.2018

Senior Technical Service and Sell Representative

Baker Hughes
09.2008 - 10.2012

Field Technician IV

Baker Hughes, Djamena
10.2007 - 09.2008

Field Technician III

Baker Hughes
09.2006 - 10.2007

Field Technician II

Baker Hughes, N'Djamena
09.2005 - 09.2006

Field Technician

Pride Forasol, Drilling Company
11.2004 - 09.2005

Field Technician I

Baker Hughes, N'Djamena
11.2004 - 09.2005

Rig Electrician

Pride Forasol
08.2001 - 09.2004

Master of Science - Physics and Chemistry

University of Bangui

Bachelor of Science - Physics and Chemistry

University of Bangui

High School Diploma -

College Saint Charle Lwanga

High School Diploma -

College Saint Charle Lwanga

Certification - Certified in Dangerous Goods Transportation By Air

QHSE Solution Ltd

TRAINING Certifications - Flow Assurance

Training Center

Certificate of Completion of “Basic Oil Field” - Basic Oil Field, Consultative Sells Skills, Flow A

Training Center

Certificate of completion of “Consultative Sells Skills” in Egypt - Consultative Sells Skills,

Training Center

Certificate of completion of “Flow Assurance” in Egypt - Flow Assurance

Training Center

Certificate of completion of “Corrosion” in Dubai - Corrosion

Training Center

Certificate of completion of “Microbiology” in Dubai - Micribiology

Training Center

Certificate of completion of “Gas Conditionning” in Dubai - Gas Conditionning

Training Center

DUBAI TRAINING - Corrosion, Microbiology, Gas Conditioning

Training Center

Certificate of completion of “Foamers –Upstream” in Dubai - Foamers

Training Center

Certificate of completion of “Hydrate Inhibitor – Upstream” in Dubai - Gas Conditionning

Training Center

Certificate of completion of “Gas Conditionning – Upstream” in Dubai - Gas Conditionning

Training Center

Certificate of completion of “Emulsion Water Clarification – Upstream” in Dubai - Emulsion Water Clarifier

Training Center

Certification - • Team Lead Program

Training Center

Certification - Gas Conditionning

Training Center

RESTOR – Restor Wellbore Remediation Program - Restor Wellbore Remediation Program

Training Center

Chemical Application - Offshore - Offshore Chemical Application

Training Center
TOMBEUH DOKOULA