Our Team

Tim Wynn

Principal Geologist and
Geomechanics Specialist
30 years

Tim leads the Geomechanics department and has 30 years of experience in geological and geomechanical reservoir characterisation and modelling, project management, asset evaluations and training aimed at supporting decision making in energy companies.

Jackie Mullinor

Principal Petrophysicist
20+ years

Jackie is a highly competent Principal Petrophysicist and has a proven track record as a project co-ordinator/ manager. Jackie has worked extensively with all types of log data since 1992. She has a strong background in log QC and ensuring the base data is prepared sufficiently for subsequent analysis. She has operator/partner experience in the UKCS and has been involved in integrated field studies around the globe.

Arndt Peterhänsel

Global Head of Training
20+ years – geoscience

As head of Training, Arndt develops and runs courses in the E&P Overview, Reservoir, and Open Air series. He is also a versatile geoscientist with 20 years of technical and managerial expertise in upstream oil & gas garnered on 3 continents and across different business environments and academia. He spearheaded global onshore and offshore exploration with focus on sub-Saharan Africa (East and West), S-Atlantic margins and Norway. Arndt has worked on carbonates and shallow to deepwater siliciclastics and assessed all aspects of petroleum systems, basin to prospect-scale, on datasets with disparate quality and in a variety of business environments.

Chris Tzinieris

Principal Reservoir Engineer
20+ years

Highly skilled reservoir engineer with over 20 years of experience in managerial and technical roles across diverse oil and gas portfolios. Key expertise in reservoir engineering, production optimisation, net zero initiatives, development planning and resource maturation. Highly experienced in estimating subsurface/project uncertainties – building fit-for-purpose models and using Decision Analysis. Effective communicator who enjoys developing high-performing teams and shaping strategy.

Ed Stephens

Principal Reservoir Engineer
25+ years

Ed has experience in petroleum development, reservoir simulation and evaluation and is sought after for his innovative and creative approach. He is a professional with excellent communication skills offering pragmatic solutions and opportunities to balance technical and business oriented goals. Ed has worked on many large complex fields for example with complex geology, 400 wells and over 30 years production history.

TRACS International Independent consulting and training to the upstream energy industry, offering tailored solutions and geoscience excellence.

Liz Chellingsworth

Principal Geoscientist
20+ years

Liz has a strong background in geophysics and geology and works as a geoscientist and Project Manager on a range of projects from Exploration and Appraisal through Concept Select to Development both in the UK and overseas. Liz also works on Acquisition and Divestment studies including asset evaluations. These include single asset valuations and multi-asset valuations. Examples include country-wide reserves/resources evaluations incorporating both development assets and large scale exploration portfolios.

Tian Xia

Principal Reservoir Engineer
30 years

Principal reservoir engineer and project leader, whose specialties lie in reservoir simulation modelling, heavy oil and EOR (enhanced oil recovery). Developed new thermal recovery techniques via reservoir scale simulation, covering air injection, solvent and steam injection for heavy oil reservoirs with complex formations, such as bitumen with top water, heavy oil with bottom water and fractured heavy oil reservoir. Has represented previous company in UK Heavy Oil and EOR activities including seminar, conferences and workshops.

Mike Wynne

Project Manager and
Reserves Coordinator
30+ years

Proven track record as a subsurface/field development project co-ordinator / manager. Highly competent reservoir engineer with experience in simulation, PVT and well test analysis (including wireline formation testing). A specialist in technical and economic screening of greenfield and brownfield development concepts and has extensive experience in reserves/resource estimation, CPRs and due diligence.

Jill Prabucki

Project Manager
30+ years

Broad range of skills and experience with over 30 years in the Oil and Gas industry in Business Development, Exploration, Development and Production Operations. Primarily working for Operators, in a diverse range of environments. A truly integrated perspective on subsurface management through a unique combination of reservoir engineering and geoscience skills, by practice and degree.

Peter Chandler

Principal Geophysicist
30+ years

Over 30 years’ experience in production geoscience, development, exploration and appraisal geophysics. Particularly experienced with shallow marine, carbonate, fluvial channel and deep water turbidite reservoirs.

Maggie Hystad

Training Manager
25+ years

As Training Manager, Maggie takes direct responsibility for the global TRACS Training Programme. As Events Lead, Maggie organises and runs all open-air events involving in-country logistics and is an HSE representative in the field. She also organises all classroom events and provides support to tutors. She has worked in the retail industry and had a long career as an in-flight supervisor for KLM, which, coupled with a fluent grasp of languages, has provided her with the skills and knowledge needed as a Training Manager dealing with clients around the globe.

Malcolm Hobbs

Economist and Facilities Engineer
30+ years

Highly experienced in surface technical feasibility, concept engineering, and economic evaluation of prospect developments. Considerable recent experience conducting economic analysis using self-generated economic models and audited client models, surface facilities definition and cost estimation for screening studies, pre-transaction data room evaluations, Reserves/ Resources evaluations and Competent Person’s Reports in a variety of integrated projects located worldwide. Appointed “expert” auditor for determination of abandonment security provision for multiple North Sea assets.

Peter Rowbotham

Associate Principal Geophysicist
30+ years

30 years industry experience, leadership in representing the subsurface in the EP and CCS business and through EAGE. Peter has a strong technical background in quantitative geophysics, gained with three international oil companies: seismic inversion, depth conversion and 4D applications applied to field development projects in the North Sea, Africa and the Middle East. He is widely recognised in the industry through his EAGE voluntary work.

Yoanna Siciliano

Project Manager
Principal Reservoir Engineer
20+ years

Highly experienced Senior Reservoir Engineer with wide international expertise in diverse Oil & Gas fields who spent 16 years working for PDVSA (PETRÓLEOS DE VENEZUELA SA) National Venezuelan Oil Operator. She has technical skills in reservoir engineering, specifically in exploitation of mature fields, field development planning, forecast production, fluid property analysis, material balance and inflow/outflow analysis. She has extensive experience in conducting Reserves and Resources estimation and audit under PRMS and COGEH guidelines. She is a main contributor to Competent Person’s Reports (CPRs), asset evaluation, due diligence and red flag projects with assets located in UK, Latin America, Europe, Asia, Middle East and Africa.

Sumon Bhattacharyya

Principal Geologist
30+ years

Experienced Chartered Geologist (C.Geol) and Certified Petroleum Geologist (P.Geol) having 30 years of experience in Geological and Geophysical interpretation and integration for entire life cycle of the field (Exploration, Appraisal and Field development), Geological Modelling, Reserves and Resource audits, Unitization, Integrated Field Studies, Field Development Studies and Seismic to Simulation workflows. Experienced working on both clastic and carbonate reservoirs. He has worked in Oil and Gas fields in 40 countries worldwide across several petroliferous basins.

Lynn Smith

Senior Geomechanics Specialist
20+ years

Lynn is a civil engineer with wide ranging experience across engineering sectors including upstream energy. She is a geomechanics specialist in addition to providing technical support to the wider TRACS team. ISO 9001:2015 champion and enjoys setting up pragmatic systems and process for data and project management.

Robert Trythal

Consultant Geologist
35+ years

Robert is an experienced consultant geologist, who has over 35 years’ experience in exploration, appraisal, development and production in the Oil and Gas Industry.  He excels as a lead geologist with expertise in geomodelling, well planning, sedimentology and subsurface integration.  In geomodelling he is an expert in Tnavigator.  His practical approach and strong communication skills make him a valuable asset in any project.  He is a considerate discipline lead who stretches the team’s abilities through technical challenges and offers support and guidance.

Mark Bentley

PhD
30+ years - geoscience

Mark develops and runs courses in the Open Air, Reservoir, E&P, Uncertainty & Risk and Energy Transition series for TRACS. He has a career background at Shell, AGR, TRACS and Langdale Geoscience. He has served as a distinguished lecturer for SPE and EAGE, acted as Training Director for TRACS and is an Associate Professor Heriot-Watt University. He is also co-author of the textbook ‘Reservoir Model Design’.

Mark Cook

BSc, MBA
40+ years - reservoir engineering, economics and risk analysis

Mark develops and runs courses in Early Development, Business, Uncertainty & Risk and Reservoir Engineering series. With a career at Shell, TRACS and AGR. Author of ‘Petroleum Economics and Risk Analysis’ and ‘Hydrocarbon Exploration and Production’, an SPE distinguished lecturer, guest lecturer at Heriot-Watt University

Richard Oxlade

MEng, CEng, BSc
40+ years - reservoir engineering and commercial

Richard runs courses in Reservoir, Business and Uncertainty & Risk series. He has a career background at BP, AGR and TRACS. Richard is a global advisor, business planning & economic analysis.

Mark Bramwell

BSc, PhD
35+ years - geoscience

Mark runs courses in the Reservoir, Early Development, E&P Overview and Open Air Series. He has a career background at Shell, KUFPEC, AGR and TRACS. Mark is programme manager for the Early Development and the E&P Overview Series.

Jerry Hadwin

BSc, MEng
35+ years - reservoir engineering

Jerry mainly tutors courses in the Reservoir, Business, Early Development, and Open Air Series. He has a career background at Shell, AGR, RPS and TRACS. Jerry is co-author of ‘Adventure Trekking in Oman’.

John Howell

PhD
25+ years - geoscience

John tutors courses in the Reservoir and Open Air series. He has a career background at Gaps, University of Liverpool, University of Bergen, Rocksource ASA, and the University of Aberdeen. John has published over 120 scientific articles and edited five books.

Douglas Paton

PhD
20+ years – geoscience

Douglas develops and runs courses in the Reservoir and Open Air series. He has a career background at Conoco-Phillips, Chevron, BHP, Saudi Aramco and TectonKnow. Douglas has published over 60 scientific articles and papers and is an invited committee member, GCSSPEM Roberts meeting (2021); Invited member for AAPG International Research Committee (2017-present).

Stephen Jewell

CEng, FIMMM, BEng
35+ years – petroleum engineering

Stephen develops runs courses in the Reservoir and Wells series. He has a career background at Conoco, Amerada Hess, Xodus, Well Decom and TRACS. Stephen is a co-author of ‘CO2 Storage Liabilities in the North Sea, An Assessment of Risks and Financial Consequences (DECC)’.

Jonathan Bellarby

BSc (Hons), MEng
30+ years – wells technology

Jonathan develops and runs courses in the Wells and Early Development series. He has a career background at BP, ICE, AGR and TRACS. Jonathan is the author of ‘Well Completion Design’.

Howard Crumpton

40+ years – interventions and completions

Howard mainly tutors courses the Wells series. He has a career background at Otis, Camco, Thistle Well Services, Wellserv, BP, TRACS and AGR. Howard is the author of ‘Well Control for Completions and Interventions’.

Fiona Walker

BEng (Hons)
30+ years - well engineering, management systems, processes, and procedures

Fiona has a career background at BP, Schlumberger, AGR, Centrica, and TRACS. Fiona is a Principal Well Engineer and Well Team Leader. She was a member of University Engineering Advisory Board 2016-2022 and member of AGR Board of Directors 2006-2011.

Joe Bildstein

MEng
30+ years – petrophysics and geomechanics

Joe develops and runs courses in the Reservoir and E&P Overview series. He has a career background at Schlumberger, RWE-DEA AG, PDO, TRACS. He is an expert in his field and as Project lead digital core analysis for PDO/SHELL, Design and introduction of GDP and ATP program, GDP Coach for the GG&GM community.

Dr Paul Lyon 

PhD in Structural Geology and Geomechanics,
PGCertLT, FHEA, ASIP
20+ years – geology and geomechanics

Paul has spent some twenty years in oil and gas exploration, most recently at Saudi Aramco. He works across the full exploration workflow and has published extensively on fault seal, seal breach and fault reactivation. In his final month at Saudi Aramco he delivered a fault-seal seminar to an audience of around 110 from exploration and the wider organisation.

Claire Still

30+ years - graphic and website design

Lead Graphic Designer with a broad background in graphic design, from corporate branding to illustration, web and social media. In her current role, she is a key player in developing the TRACS training division’s materials across all Series, from the initial visual concept design to the final artwork.

Phil Rose

PhD
30+ years - geoscience

Phil has expertise in geoscience activities from prospect definition to well operations. He specialises in production and exploration, and leading subsurface teams. Phil has a career background with Texaco, Halliburton, and Apache. He is a tutor in the TRACS Open Air series and has published several scientific papers.

Angus McPhail

MSc (Stirling et Surrey),
PGCertLT, FHEA, ASIP
20+ years - Business Analysis & Finance, Economics Legal & Regulatory

Angus is a tutor of courses in the Business series. He has a career background with ING N.V, Investec Plc, Alliance Trust Plc, and Standard & Poor’s. Angus is a Teaching Fellow and Lecturer in Finance at University of Stirling and is completing a PhD in Economics and Business Administration at LUT in Finland.

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