Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary

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Zsolt Buza

Nationality: Hungarian/Serbian

Qualifications: 1986 – 1992: MS Degree in Petroleum Engineering/ BS Degree in Petroleum Engineering, University of Zagreb

Languages: English, Hungarian, Serbo-Croatian, Russian (beginner) CURRICULUM VITAE

Profile

• Results-oriented and thorough Upstream professional who takes his goals very seriously and methodically with over 20+ years of work experience in production technology-engineering, operational and artificial lift system positions

• High energy level and work in international, integrated, multidisciplinary, cross functional multi- cultural teams in different European, former Soviet Union and Islamic working cultures

• Possess outstanding experience of modelling and optimising well inflow and outflow performance, conceptual well and completion design, design of well/reservoir interface, Well, Reservoir and Facility Management (including production system modelling and optimisation) and Well Integrity Management (including specification of the operating envelope for the well)

• In expert level conducting artificial lifts (ESP, GL, Auto-GL, SRP, PCP, Jet Pump) selection, designs, tendering process, implementation, surveillance, troubleshooting, optimization, supporting and supervising downhole/surface ALS intervention activities, installation/pulling, RCFA/DIFA actions, function testing, pre-commissioning, commissioning, start-up and follow up analysis

• Managing of problem diagnosis in oil, gas and unconventional gas-condensate wells and planning rig and rigless intervention/workover (stimulation, clean-up, start-up and testing) and completion jobs

• Develop and implement a surface/subsurface flow assurance strategy

• Integrated Oil and Gas Field Management directed to solve practical problems in wells operation

• Strong in execution and operations to push activities and projects forward

• Strong experience of Heavy Oil production operation and optimization

• Strictly respects HSE rules and fully complies of them

• Held production technology trainings, Talent development, mentoring, coaching and teaching

• Self-motivated, able to work independently or in a team environment

• Powerful, for the work under pressure and physically extremely fit

• Reliable and rational even in difficult situations

• Enjoys multi-cultural atmosphere, recognize and respect equally everybody

• Possess excellent written and oral communication skills, multilingual Capabilities

• Production Technology Management

• Integrated Production Modelling (IPM) – Well Nodal Analysis and network modelling

• Artificial Lift Systems

Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary pg. 2

• Well, Reservoir, and Facility Management (WRFM)

• Integrated Field Management (IFM)

• Well Integrity Management

• Production Operations Management

• Excellent Well-Production Analysis and Diagnosis

• Exceptional problem-solving capabilities

• Detail-oriented, strong analytical and mathematical capabilities

• Excellent interpersonal and teamwork spirit

• Strong work ethic and enthusiasm to deliver excellent results

• Strong communication skills

• Proficient computer skills in Microsoft Office suite, and specialized software as Petroleum Expert IPM suite (PROSPER/GAP), PIPESIM, OFM, WellFlo, SubPUMP, SROD, QRod, RODSTAR and TWM Recent Major Achievements

• Developed and implemented successful well and field operations strategy trough integrated oil and gas fields management for carbonate reservoirs, resulting in an expected to 5-6% production increment and a significantly-reduced operational cost of up to 15% in the Kazakhstan field of Chinarevskoe

• Successfully delivered Gas Lift project with Auto-gas lift in multilayer wells (Tournaisian carbonates, which contain one gas-condensate (4300m) and three oil reservoirs (4350-4500m))

• Artificial lift system (Gas Lift & ESP) implementation in the Kazakhstan field of Chinarevskoe

• Wells production resumption of the Oudeh field in Syria; as Desk Engineer / ALS Specialist resolving many critical issues after long period of shut-down. Optimized SRP & PCP wells (set higher volumetric efficiency for 10-20%), created the software database for production and ALS. Improved flow assurance – redesigned light and heavy oil flow contribution for pipeline transportation

• Produce the Limit events team leading with the OPEX/CAPEX reduction outcomes

• Created subsurface ALS and well flow assurance strategy that facilitated continuous operations

• Designed and delivered effective and essential production technology training courses in well performance modelling and ALS selection and designs, mentoring and teaching young engineers during projects preparation and execution

• Successfully implemented sand control re-design in heavy oil mature wells. Low density gravel pack replaced by slotted liner which is installed by immersion. First pilot well is back after 8 years shut in, payback realized after 5 months. Second well initial oil rate increased for 50%

• Co-author of the book “System Analysis of Flowing Oil and Gas Wells” Professional Career

February 2014 – Dec 2020 Senior Production Engineer/Technology Specialist PM Lucas Enterprises Ltd., Kazakhstan/Serbia

Different International Projects

• Business development Project, support providing in terms of the Field Development, Business Planning, OPEX/CAPEX and definition opportunity of acquiring oil producing Assets Production Operations and Petroleum Engineering Supervising / Support, Chinarevskoe gas-oil field; Zhaikmunai LLP, Kazakhstan; February 2014 – December 2019

• Gas Lift system Initial Startup: Prepare Gas Lift System Initial Startup Procedure, manage wells and well site pre-commissioning, commissioning activities, synchronize compressor plant, gas lift manifold and well site Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary pg. 3

activities with control rate measurements on OTU and system performance surveillance-optimization, Carry out Performance Tests, to prove the plant and equipment design capacities, products & specifications

• Gas Lift system performance surveillance, follow up analysis and optimization

• Working in diverse multi-disciplinary upstream WRFM teams (geoscientists, reservoir, production, completion, surface engineers and operations) – projects, complex functional tasks, which dealt with data gathering/management, well completion, deliverability and reservoir management to maximize inflow and outflow potential of the existing and future well stock

• Well Analysis - Well Problem Analysis/Diagnosis (WPA-WRM) studies - estimation and identifications of production enhancement opportunities for each well on the license area

• Manage Electrical Submersible Pump (ESP) designs, implementation, installation/pulling, function testing, pre-commissioning, commissioning, start-up, follow up analysis and optimizations

• Prepare Well production performance optimization and ALS lift implementation forecast studies/PPTs of multilayer oil and gas-condensate wells.

• Provide production technology support to Reservoir Management, generate and calibrate Vertical Flow Performance (VFP) tables for dynamic simulation

• Mentoring and coaching Production Technology/Engineering Personnel January 2008 – February 2014 Production Technology Group Leader PM Lucas Enterprises Ltd, Kazakhstan, Romania

Different International Projects

Production Operations and Petroleum Engineering Supervising / Support, Chinarevskoe gas-oil field; Zhaikmunai LLP, Kazakhstan; May 2010 – February 2014:

• Working in diverse multi-disciplinary upstream WRFM teams

• Integrated oil and gas field management- develop and implement a well and field operations strategy - directed to solve practical problems in wells operation

• Manage and perform production and injection system optimization with generation, calibration and updating Well Inflow & Injection Performance (WFP) modelling (NODAL Analysis by PIPESIM & IPM- PROSPER, GAP) for multilayer oil (4300-4500m) and gas-condensate wells (5500m)

• Coordinate with operations department to optimize daily production and water injection performance

• Support to Production Operation included daily production wells performance analysis, reservoirs and well surveillance evaluations, well test supervising, daily production and operations reporting, well intervention planning & design and ensure Well Integrity Management System (WIMS)

• Provide production technology support to Reservoir Management

• Manage N-E Tournaisian Artificial Lift System (Auto-Gas Lift) Performance Analyses and Future ALS (Re) Development - Feasibility Study

• Manage gas-condensate wells control rate measurements, well testing and sampling campaign by Schlumberger’s PhaseTester Vx 52 portable multiphase well testing equipment

• Manage Gas Well Deliquification Feasibility Study

• Acid Gas injection performance calculation in gas condensate reservoir for “AGI Surface Facilities Conceptual Design – Design Assignment” purpose

• Manage Condensate Bank Removal and Treatment Recommendation Study in gas condensate reservoirs

• Develop and implement a surface/subsurface flow assurance strategy

• Preparing PT Group functional & new technology implementation budgets and assist in the implementation of the approved Budget and work plans to deliver Reservoir Management Department objective

• Provide inputs on Production Operations yearly budgets (Well Testing; BHFP, PLTs, calliper surveys; GL slickline, manifold operations)

• Preparing well intervention economics, justification/AFE proposals, task and draft designs for rig and rigless intervention and completion

• Operations and Management System development and implementation, establish policies, procedures, and production technology and operating performance standards Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary pg. 4

• Provide support to develop & implement standards, procedures & guidelines as per ZKM management systems, ensure HSE policy

• Investigation of Foaming Agents Application in two pilot well – Feasibility Study

• Special responsibility projects development (Water flooding Feasibility Study for Tournaisian Formations - Injection system performance, Borankol - Tolkin Fields Evaluation – Well flow performance and ALS selection & design, Ardatovski & South Turnaisian Gas-Condensate Reservoirs Production Forecast - Input Data for Low Pressure Gas-Condensate Handling System Development Project)

• Mentoring coaching, and teaching young engineers in well performance modelling and ALS selection and designs

• Overseeing field and office production technology group activities, planning, budgeting, direct 4 reporting and indirect 12 employees

Saribulak Oil and Gas Field Workover and Well Testing Supervising; Tarbagatay Munay, East Kazakhstan; July 2008 – May 2010:

• Workover (Completion, Re-Completion, Swabbing, Cleanout, Water shut off, Add perforation / Re- perforation, Logging, PLT, Fishing etc.) and well test activities day by day supervising

• Ensure Well Integrity Management System (WIMS) and well surveillance

• Preparing Daily WO Report, Fluid Recovery, Material Transfer Reports

• Preparing Workover Well End Report

• Workover Planning and Design

• Preparing WO and WT Programs.

• Well Test result validation QA/QC, checking WT result and interpretation by WFP models

• Procurement support – Cost – AFE

• Preparing WO functional yearly budget

Kamenistoye oil field-Investment Estimation; Kamenistoye LLP-PM Lucas; Kazakhstan; May – June 2009

• Artificial Lift System selection and economically evaluation study Production Operation Practice Auditing; OMV Petrom, Romania; April 2007 – August 2008

• Production Operation practice Auditing (Operations Management System, Field Metering, ALS) for the biggest nine oil fields in Romania (Suplac, Videle, Ticleni, Madulari, Poiana Lacului, Indipendenta, Albotesti, Moinesti, Poeni and Margita)

Fifteen Marginal Oil Fields (Karaton, Kulsary, Dossor, Baychunas, Makat, Koschagil, Koshkar, Tulius, Iskene, Tanatar, Tazigali, Bekbike, Sagiz, Koshkimbet, Komsomolskoe), Techno-Economical Feasibility Study; KazMunaiGas-Eriston, Kazakhstan; February – June 2008

• Scouting, geological and production data collection, data QC, Field re-development planning, recoverable Reserves estimation and economic analysis and evaluation were prepared July 2005 – December 2007 Senior Production Engineer / ALS Specialist PM Lucas Enterprises Ltd, Kazakhstan, Russia, Syria Different International Projects

Operations and Petroleum Engineering Support OMV-Tasbulat Oil Corporation LLP; Petrom S.A. Kazakhstan; September – December 2007

• Well Flow Modelling (Inflow-Outflow Analysis) and well problem diagnosis.

• Existing ALS (SRP, ESP) overview and run life analysis, troubleshooting, root cause analysis, re-design ( and optimization proposals

Artificial Lift System Design Study for Komsomolskoe Oil Field; Kom Munai LLP Kazakhstan; January– February 2007

• Study start with single wells production performance analysis, Well Test data checking and validation Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary pg. 5

• Single wells Well Flow Performance ((NODAL) analysis – WT matching with flow models (IPR-VLPs), estimate future well production behaviour – Forecast

• Determination of ALS wells target production

• Single well ALS selection by Multi-criteria method

• Single well ALS Design (ESP & SRP) to match reservoir conditions, achieve target production and determine ALS electrical power requirements

Kaspiyskoye Oil Field Production Operations Supervising and Petroleum Engineering Support; VALKYRIES PETROLEUM – Kalmistern, Kalmikiya, Russia; September 2005-December 2006

• Duties included Engineering leading in terms of the overall production operations, optimization and workover heavy re-entry and well interventions (ESP and SRP running) activities

• Managing Production Operation included daily production wells performance analysis, reservoirs and well surveillance, evaluations, well test supervising, daily production and operations reporting, well intervention planning & design, well problem analysis and diagnosis as well as ALS surveillance, analysis, optimization and re-design

• Managing running the production and workover team with 2 WO rigs, prepared the workover plan and programs including the evaluation and assessments of the potential old wells re-entry (several heavily suspended wells successfully commissioned)

• Commissioning and start-up of the new horizontal with ESP equipped wells as the main achievement

• Mentoring, coaching, and teaching Production Operation Personnel Production Operation Support, Konys oil fields; JV KuatAmlonMunai; USA-Kazakhstan; November 2002- December 2005 – Rented from NIS GAZPROM

• Responsibility for the daily production wells performance analysis (POP, PIPESIM, PROSPER), production optimization by Well Flow Modelling (Inflow-Outflow Analysis) and well problem diagnosis

• Artificial Lift System (SRP, GL, ESP) design (PIPESIM, PROSPER, SubPUMP), surveillance, analysis and optimization

• Gas injection performance calculation of selected wells to determine optimum injection rates, wellhead pressures, tubing sizes and completion techniques for “Konys Oil Field Development - Gas Re- Injection Facility” purpose

Oudeh Oil Field Operation Practice Review and Optimization & Field Re-Development Review and Planning; DUBLIN – Syria; June 2004- December 2004 – Rented from NIS GAZPROM

• As a “Field Desk Engineer” supervising light and heavy oil Production Operation included daily production wells performance analysis, ALS (SRP&PCP) surveillance, analysis, optimization and re-design (SARP, QRod, S-ROD, PCM, CFER, PUMPA) well intervention planning & design, well problem analysis and diagnosis, review of existing surface facilities

• Improve flow assurance practice: define optimal methods of heavy oil viscosity decreasing, redesigned light and heavy oil flow contribution for pipeline transportation.

• Prepare “Sucker Rod Pump System Analysis and Optimization” Sub-Project which covered REVIEW the efficiency of the installed SRP systems: Pumps, Sucker Rod String, Pumping Unit, Prime Movers, PUMPING MODE SELECTION - System Performance Curves, OPERATIONAL PRACTICE (PROBLEMS) - Gas Locking, Sucker Rod Over stresses, Wax, Scaling problem, PROPOSALS FOR FUTURE COMPLETIONS

• Key wells back into production, optimized SRP & PCP wells (set higher volumetric efficiency for 10-20%) as the main achievement

• Mentoring, coaching, and teaching Production Operation Staff January 1998 – June 2005 Senior Production Technologist/ ALS Specialist NIS GAZPROM, Serbia

• Manage SRP Development and Implementation Team

• Advising and supporting Production Operation of Middle Banat Asset

• Team member of Well, Reservoir and Facility Management (WRFM) of Middle Banat Asset Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary pg. 6

• Team member of Pilot Horizontal Wells Implementation Group, responsibility for reservoir and wells candidate selection, HW productivity calculation, ALS selection & design (GLOP, PIPESIM), completion design, cost (CAPEX/OPEX) estimation and drilling/completion task preparation

• Completion design and Well Flow Performance modelling for “MTZ Gas Field Design Basis” purpose

• Qualitative and Quantitative Analysis of Sucker Rod Pump Dynamograms in NIS Naftagas Wells

• Gas Re-injection in M Gas-Condensate Reservoir Feasibility Study Team member with responsibility for candidate wells selection, well flow/injection performance modelling (POP, PIPESIM), completion design and injection forecasting

• Prepare “System Analysis of Production & Injection Well in Gas-Condensate Reservoir with High Content of CO2 - A Case Study” publication and awarded as a first presentation on Schlumberger Information Solutions Open Days Sinaia – Romania 2004

• High Contents of CO2 Gas Production in NIS Naftagas for the purpose of GTP KIKINDA - Techno- Economical Feasibility Study Team member with responsibility for candidate reservoir/wells selection, WFP modelling - flow rates and wellhead pressure forecasting estimation during well/reservoir life cycle

• Prepare “System Analysis of Gas Well with High Content of CO2 in NIS Naftagas” publication and awarded as a first paper on YUNG 2000 –Yugoslavian Associate of Oil and Gas, Vrnjacka Banja

• Team member of Project “Sand Control re-design in Je Heavy Oil mature wells”, responsibility for the slotted liner design (slot length, percent of open area, required slots and max. allowable tension calculation) and supervising of liner installation by immersion. In two pilot well achieved impressive results, in one well initial oil production increased by 50%, second well is back to production after 8 years of shut-in.

• Co-author of the book “System Analysis of Flowing Oil and Gas Wells” – preparing CHAPTER 5 – MULTIPHASE FLOW IN WELLS

• Mentoring and teaching young engineers in well performance modelling and ALS selection and designs. Support to lecturing Dr. Mišo Soleša, - “Oil Production with Subsurface Sucker Rod Pumps and Progressive Cavity Pumps” course at Faculty of Mining and Geology University of Belgrade Velebit Oil and Gas Field Manager; April – June 1999 – Specific temporary position

• Operating north Serbian fields of Velebit, Palic and Kelebija (7,000 BPD) supervising and optimizing the surface facilities process of crude oil dehydration including: chemical injection rate, retention time, temperature optimization, supporting completely production, direct 5 reporting and indirect 120 employees

• Furthermore, managing Production Operation included daily production wells performance analysis, control rate test supervising, daily production and operations reporting, well intervention planning, well problem analysis and diagnosis as well as ALS surveillance, analysis, optimization

• Managing running the production and workover team with 2 WO rigs, main activities covered SRP and low density gravel pack replacement

• Ensure that the HSE and safety supervisory system requirements are met i.e. all production related activities comply with the company's health and safety procedures January 1996 – December 1997 Senior Production Engineer NIS GAZPROM, Serbia

• Engineering Studies and General Projects team member for subsurface production engineering team

• Team member of Well, Reservoir and Facility Management (WRFM) of Middle Banat Asset

• The role of production optimization and well problem analysis (WPA=WRM) of naturally flowing and artificial lift wells and solving presence production problems (sand control, wax/scale deposition (flow assurance), formation damage, ALS failure etc.) creating the well problem analysis-diagnosis document and formally taking actions regarding improvements

• Preparing workover proposals-task for different types of workover job (the well selection) in line with the WPA and well evaluation objectives

Zsolt Buza • adfvwt@r.postjobfree.com +36-70-666-**** • Hungary pg. 7

April 1994 – December 1995 Intermediate Production Engineer NIS GAZPROM, Serbia

• Well Flow Performance (NODAL) analysis calculation for “RUS Gas Condensate and Oil & Gas Fields Design Basis” purpose, future well behaviour approved very accurate forecasting of wellhead pressure chokes and flow rates

• Optimization oil and gas wells production using NODAL analysis (WPM, GLOP), selection of the artificial lift methods, ALS design, well production problem diagnosis and recommendations for workover, re - completion and stimulation operations

February 1993 – March 1994 Junior Production Engineer NIS GAZPROM (former NAFTAGAS), Serbia

• Company Training in Drilling, Workover and Maintenance Department. Introduced to companies equipment and facilities. Introduction to different completion and workover operations.

• Well Flow Performance ((NODAL) analysis calculation for “ZRS Oil & Gas Field Design Basis” purpose

• Completed “ Vertical Lift Performance Calculation for ZRS Oil and Gas Field” Trainee Work Education

• 1986 – 1992 MS Degree in Petroleum Engineering, University of Zagreb BS Degree in Petroleum Engineering, University of Zagreb

• 1984 – 1986 Mathematical High School, Subotica

Professional Trainings

• Fundamentals of Digital Marketing – Google Digital Workshop, 3rd July 2020

• Production Optimization using Artificial Intelligence and Data Mining - SPE - ATCE 2010 Florence, 18th – 19th Sep 2010

• Horizontal Completion Technologies Seminar- Baker Oil Tools, Pescara, Italy, 8th -15th Sep 2003

• Horizontal Well Completion- Short Course – SPE Annual Meeting San Antonio, 29th Sep 2002

• Petroleum Engineering Summer School 2001, Workshop 9: Optimization of oil and gas production (short courses), Dubrovnik, Croatia, 11th – 15th June 2001

• PIPESIM 2000 training - Schlumberger, Novi Sad, Serbia, 10th – 14th May 2000 Personal Date & Affinities

• Married since 1992, 2 sons 28/26

• Running, biking, skiing, hiking, outdoor activities, travelling, reading

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