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Produced Water Management 2025

Svein Viggo Aanesen

Specialist

Equinor

Roar Aasheim

Senior Process Engineer

Aker BP

Roar is an Chemical Engineer by background. Graduated with an MSc from NTNU in 2024. Has been working for 20 years in the oil & gas industry, mainly in operations both onshore and offshore as a process engineer and in offshore management. For the last 5 years I've been working as a process engineer for the Grieg Aasen Asset in Aker BP, supporting primarily the Ivar Aasen installation

Richard Arntzen

Sr process engineer

Shell

RIchard has an Siv.ing (1994) industriell kjemi NTH, further a Dr.ing (2001) kjemiteknikk NTNU Work experiences from Kværner/Aker Kværner/Aker solutions (1996-2008): Separation related work; R&D, projects and studies. Shell (2008-) R&D, projects and studies. Principal technical expert for Shell in Separations since 2014.

Margrethe Broby

Senior Production Chemist

Okea

Margrethe works as Principal Production Chemist in OKEA. She is part of Brage onshore operations and responsible for the chemical treatment strategy.

Margrethe holds a PhD and MSC in Chemical Engineering, both from NTNU

Stephen Douglas Coffee

Director of International Business Development & Marketing

PW Society

Steve has a Bachelor of Science in Business Administration, Economics; 30-year SME on hydrocyclones and sand management.

Carles Crespo

Global Director of Industry

Isle Utilities

Carles is responsible for providing world-class water and wastewater management and treatment projects for our industrial clients and has a hand in transforming tomorrow. With a profound water industry knowledge, deep international experience and advisory passion and mindset, are major assets that will focus on tackling the toughest water and wastewater challenges, as he supports all aspects of our corporate level business relationships and growth strategies in Europe.

Prior to joining Isle, he worked more than 20 years in different consulting and sales leadership roles for top water technology companies (GE Water, now Suez), water innovative startups (Akvola Technologies) and operations consulting firms (Highland Worldwide Group), among others, based in US, Europe and Asia.

Carles holds two engineering degrees, Chemical Engineering and Industrial Engineering (specialization in Chemicals) with honors from Institut Químic de Sarrià in Barcelona and has also completed an MBA at ESADE Business School.

Åsbjørn Enerstvedt

Senior Prosess ingeniør

Aker BP

Åsbjørn has a Bachelor degree: Mechanical Engineering, Process and Energy Technology, Stord/Haugesund University College Master degree: Offshore technology, Industrial Technology and Asset Management, University of Stavanger. Have been working in the oil and gas industry since 2001, primarily within Operations. Are at the moment holding the position as Process Lead for Hugin A/B in the Yggdrasil development.

Ana Rita Ferreira

Environmental Engineer

DTU, Denmark Technical University

Ana Rita is an Environmental Engineer with a PhD in Environmental and Sustainable Engineering from NOVA University of Lisbon. Her main research focuses on organic and inorganic contaminants removal from different environmental matrices applying sustainable technologies. Currently Ana is a postdoctoral researcher at Technical University of Denmark working on water technologies and processes. For the past 4 years, Ana has been working on developing a feasible treatment at offshore platforms to treat produced water, aiming to achieve a zero harmful discharge to the sea.

Tone Karin Frost

Advisor Environmental Technology

Equinor

Tone has more than 25 years’ experience from research and development in Equinor related to impacts and environmental monitoring of regular discharges from e.g. petroleum activities, both offshore and onshore. She has had an active role in the development of environmental risk-based methods, e.g. the Environmental Impact Factor applied to produced water discharges. She was involved in establishment of a Guideline for a Risk-Based Approach for use within OSPAR. Her current position in Equinor is as advisor within Environmental Technology at the research centre in Trondheim.

Wally Georgie

Principal Consultant

Maxoil Process Consultancy

Wally, has over 40 years’ experience in the oil and gas industry, namely in oil and gas operation, processing, separation, fluid handling and system integrity. He specializes in Oil Water Separation, Produced Water Treatment and Management, Water Injection systems operation and treatment, Sand and Solid Management, Gas processing and treatment, Flow Assurance, Corrosion Engineering and Integrity, Sour production, all aspects of Production Chemistry Management, Operation Assurance process design review of both Green and Brown field developments. He has obtained his Ph.D. in Chemical Technology Strathclyde University Glasgow Scotland (1977).

Tamara Hansen

Process engineer

Vår Energi

Steinar Hellesøy

Principal Process Engineer

Vår Energi

Steinar works as Principal Process Engineer in Vår Energi. He is currently part of the Gjøa onshore operations team and supporting project development within production chemistry. Steinar holds a MSC in Chemical Engineering from NTNU.

Ranveig Husås Jevne

Principle Engineer Process

Equinor

Ranveig has a Master of Science Chemical Process Technology, NTNU from 2008. Been working in Equinor for 16 years, now located in Oslo. Ranveig has years of experience within process engineering and project development and execution, and most recent within process optimalisation and operational support. Ranveig has been working with oil water separation, produced water and sea water treatment.

Erik Kjendalen

Senior Process Engineer

Schlumberger Norge AS Avd Hovedkontor

Olav Kristiansen

Principal Researcher

Equinor

Olav has an MSc in chemical engineering from 1997 and a PhD in multiphase flow from 2004, both at NTNU. He worked 10 years as a researcher at SINTEF Multiphase Flow Laboratory. In 2006, he started in Equinor. Worked at Equinor’s Research Center in Trondheim from 2006 to 2024, and are now located in Oslo. The main activity has been laboratory testing for qualification of gas-liquid separator technologies at realistic process conditions and large scale, building experience with various types of process measurements and simulations. The past years, Olav has also been supporting Equinor’s operations, green and brown field projects with technical services. Mainly related to gas scrubbers and gas processing, topside and subsea.

Dag Kvamsdal

Separator Domain Expert

Schlumberger

Dag holds a master of engineering degree from the Norwegian Institute of Science and Technology. He has more than 25 years experience as a process engineer specialized in oil and gas separation. Dag Kvamsdal; has been involved in product development of separators, scrubbers and cyclones, and holds several patents within the field. Currently he has the position as Separation Domain Expert in Schlumberger.

Pei Ling Lian

Product Line Manager

NOV Process & Flow Technologies

Esther holds a MEng degree in chemical engineering from Imperial College London UK from 2004. She worked 3 years as graduate process engineer in BP Clair Ridge EOR project in AMEC London. Since 2011, she moved to Oslo and worked as Seawater specialist for Aker Process System and now NOV. She has been specialized in the membrane technologies for almost 15 years. The main activities cover SRU concept feasibility study to operation / brownfield optimization. Recently, she is working closely with AkerBP for the Yggdrasil SRU performance based contact. She is working closely with NOV data science team in Houston, to use artificial intelligent and machine learning model on SRU data to achieve process & operation optimizations.

Mette Mathiesen

Chief Engineer

Equinor

Mette is a human toxicologist and an occupational hygienist with extensive experience in working environment consulting, chemical risk assessment, project management, preventive health work, research, and teaching. Since 2013, Mette has worked in Equinor, contributing to various projects, the last 5 years as a senior professional within extended facilities, first as a leading advisor and now as Chief Engineer for Working Environment Technology.

Mette holds a MSC in Toxicology from The Arctic University of Norway-UiT (1998) and obtained her PhD in Toxicology from the Norwegian University of Science and Technology- NTNU (2004).

Jon Moseley

Director

BSC Separation Technology

Jon is a Chemical Engineer with decades of experience in Oil and Gas separation technology. In his early career, he was involved in the development and field testing of the first de-oiling hydrocyclones to be installed in the North Sea. He spent many years thereafter running international sales teams for a number of the world’s leading separation technology companies introducing many new separation technologies to the market, supplied to most of the world’s leading operators including Equinor, Shell and BP. He established BSC Separation Technology around 8 years ago to investigate, develop, and commercialise a new award winning super-compact turbo-powered rotary separator which exhibits many benefits over conventional separators including hydrocyclones”.

Astrid Jevne Mæland

Senioringeniør

Miljødirektoratet

Astrid has a M.Sc. from 2012 in Environmental Engineering from the University of Stavanger. She has been employed as a senior engineer in the Section for Petroleum and New Marine Industries of the Norwegian Environment Agency since August 2020, where she among other topics works with discharges to sea, including produced water.

Mathijs Smit

senior ecotoxicologist

Shell

Mathijs Smit has a PhD in Environmental Sciences from the University in Nijmegen (NL). He has 25 years of experience in environmental assessment of produced water discharges and offshore chemicals. He worked on the CHARM and DREAM models and played a key role in the development and implementation of OSPAR's risk-based approach (RBA) to the management of produced water discharges for the North-Sea region. He currently chairs the Produced Water and Chemicals Sub-committee of the International Association of Oil and Gas Producers (IOGP). In his current role in Shell, he provides technical support on wastewater assessments to Shell’s global businesses.

Niels van Teeffelen

CEO

Typhonix

Niels holds a Master of Science degree in Mechanical Engineering from the Eindhoven University of Technology in The Netherlands and has 20 years’ experience in the oil and gas industry within engineering and design. The last 15 years have been focused on produced water treatment and oil/water separation. Niels has extensive experience on evaluation of the effects of shear on separation and on how to design valves and centrifugal pumps to minimize or prevent the effects of shear.

Ann-Cathrin Vaage

Climate Policy Manager

Offshore Norge

Ann-Cathrin is a chemical engineer from NTH in Trondheim and has more than 30 years’ experience from various positions in the oil and gas industry. Currently she is holding the position as climate policy manager in the Norwegian offshore industry association. She is leading the work of providing the industry’s input to the authorities in the EU and Norway related to regulation of methane emissions from oil and gas production and transportation.

Eli Gunveig Vassgård

Specialist

Equinor

Eli is a Process engineer, specialized in water treatment and sand handling. Norwegian University of Science and Technology (NTNU) Master's degree, Chemistry 1991.

Isabelle Moraes Amorim Viegas

Researcher

Technical University of Denmark

Isabelle has a background in Chemistry, with a Ph.D. from the Federal University of Pernambuco (Brazil), complemented by a guest Ph.D. stay at the University of Copenhagen (Denmark). Her expertise spans the synthesis and quality parameters of biodiesel, chemometrics applied to properties of fuels, synthesis and characterization of semiconductor nanocrystals, and multi-way analysis. During her postdoctoral tenure at the Danish Offshore Technology Centre (DTU Offshore), Isabelle focused on the fluorescence of solutions and aqueous dispersions of crude oil, the assessment of produced water quality, and the development of a sensor for monitoring crude oil content in water. In her current role as a researcher at DTU Offshore, she has been working on a fluorescence-based method to determine BTEX contaminants in produced water.

Eilen Arctander Vik

Research manager

Aquateam COWI

Eilen has an MSc. Chemical Engineering, NTH, Trondheim 1975 MSc. Environmental Engineering, University of Washington, Seattle, 1979 PhD Env. Eng, UW, Seattle, USA, 1982

Working Experience from Norwegian Institute for Water Research: 1975-1984 (incl. permission to finalise PhD) Started Aquateam with four colleagues from NIVA in 1984, sold the Company to COWI in 2013 Started Aquateam COWI applied R&D supported by the COWI Foundation in 2017

Eilens main work is reslated to applied research and consultancy in water treatment and environmental risk assessment. Responsible for work for the oil industry since 1986. Experience from field work, lab studies, pilot studies and desktop studies.

Kirit Wadhia

Principal Environmental Consultant

National Oilwell Varco

Kirit is a highly motivated and accomplished environmental science professional with more than 30 years’ experience of test methods and assessment criteria concerning environmental toxicity. Track record of implementing project work and managing environmental laboratories. Range of extensive experience includes method development, validation and formulation of guidelines for regulatory purpose. Member of UK regulatory committees and international organisations. Demonstrated record of gaining successful outcome of prominent proposals, organising and managing delivery of key tasks and providing inference of complex environmental projects assessment.

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