Personal profile
Research interests
Experimental measurement and thermodynamic modelling of fluid phase equilibria (hydrocarbons, water, hydrates, organic inhibitors).
Water content of natural gases, inhibitor distribution, aqueous gas solubility.
Gas Chromatography (GC) analysis of fluids.
I am involved in several projects on various aspects of gas hydrates, including, their formation and prevention in subsea transfer lines and drilling operations, design and testing of low dosage hydrate inhibitors, kinetics of gas hydrate formation and inhibition, positive applications of gas hydrates as well as the phase behaviour of acid gases, oil and gas reservoir fluids. Main research projects and activities:
Joint Industrial Project (JIP) - Gas Hydrates and Flow Assurance Joint Industrial Project (this project addresses mainly thermodynamic issues associated with gas hydrates)
JIP - Flow Assurance: Hydrate Monitoring and Early Warning System (developing methods for determining the hydrate safety margin, and (2) developing techniques for detecting initial hydrate formation in pipelines).
JIP - Flow Assurance: Hydraflow, Avoiding Hydrate Problems (Transport of hydrate slurries).
JIP - Reservoir Fluid Studies (this project addresses mainly the phase behaviour of oil and gas reservoir fluids).
Supervision of PhD students and Mentor/help MSc students.
Biography
Prof Antonin Chapoy holds a DEA (MSc) in Chemical Engineering (Université d'Aix-Marseille, Marseille, France, 2001), an MSc in Energy Engineering (Institut Universitaire des Systémes Thermiques et Industriels, Marseille, France, 2001) and a PhD in Chemical Engineering (Paris School of Mines, France, 2004). Following completion of his PhD, he joined the Centre for Gas Hydrate Research at Heriot-Watt as a Research Associate. Dr Chapoy has over 15 years research experience of gas hydrate and hydrocarbon phase behaviour, and has managed a wide range of projects, predominately sponsored by industry. Currently a Research Fellow at Heriot-Watt, he is first or co-author on over 150 refereed journal and conference publications, primarily concerning gas hydrates, flow assurance and water-hydrocarbon phase behaviour.
Roles & Responsibilities
Professorial Research Fellow
Research Group Contact Details
Prof Antonin Chapoy
Professorial Research Fellow
Hydrates, Flow Assurance & Phase Equilibria |EGIS, Institute of GeoEnergy Engineering, Heriot-Watt University
Tel: +44 (0)131 451 3797 / e-mail: [email protected] / Web: https://goo.gl/sfJLAs
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 7 Affordable and Clean Energy
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SDG 13 Climate Action
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SDG 14 Life Below Water
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Collaborations and top research areas from the last five years
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Gas Hydrates
Chapoy, A. & Mokhatab, S., 2026, Flow Assurance in Pipelines: A Reference Guide. Elsevier, p. 223-276 54 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter
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Petroleum Waxes
Chapoy, A. & Mokhatab, S., 2026, Flow Assurance in Pipelines: A Reference Guide. Elsevier, p. 277-309 33 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter
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PVT and Phase Behavior of Petroleum Fluids
Chapoy, A. & Mokhatab, S., 2026, Flow Assurance in Pipelines: A Reference Guide. Elsevier, p. 23-137 115 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter
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Thermophysical Properties of a CCUS Candidate Fluid
Ahmadi, P., Jibril, A., Mahmoodi, M. H., Okoro, F., Owuna, F. J., Ferreira Torres, L., Chapoy, A., Burgass, R., Stringari, P., Riva, M. & Campestrini, M., 7 May 2026, In: Energy and Fuels. 40, 18, p. 10067-10085 19 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
Thermophysical properties of CO2 + N2 and CO2 + H2 mixtures: Molecular simulation and thermodynamic model validation
Mahmoodi, M. H., Ahmadi, P. & Chapoy, A., Aug 2026, In: Journal of Chemical Thermodynamics. 217, 107673.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure)
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Reseach Project: Sustainable, Circular Economy Hydrogen Production By Valorisation Of Electrolyser Waste Heat For The Purpose Of Direct Seawater Desalination
Ahmadi, P. (Recipient) & Chapoy, A. (Contributor)
1 Jan 2025 → 31 Dec 2026Activity: Other
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Joint Industy Project : Phase behaviour of CO2 in presence of volatile organic compounds
Ahmadi, P. (Recipient) & Chapoy, A. (Contributor)
1 Jan 2025 → 31 Dec 2026Activity: Other
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Experimental and Modelling study to validate EoS as surveyed in CCS2001 report
Ahmadi, P. (Consultant) & Chapoy, A. (Consultant)
25 Apr 2025 → 1 Mar 2026Activity: Consultancy
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Joint Industry PRoject: Thermodynamics and Kinetics of CO2 Gas Hydrate – Prediction and Mitigation for Carbon Capture and Storage (CCS)
Chapoy, A. (Recipient) & Ahmadi, P. (Recipient)
1 Nov 2024 → 28 Feb 2027Activity: Other
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GPA Midstream Project No. 212: Phase Behaviour of (Methanol + Hydrocarbons + Water) systems
Chapoy, A. (Recipient) & Ahmadi, P. (Recipient)
1 Sept 2024 → 31 Aug 2026Activity: Other
Press/Media
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Energy giants back key carbon capture, utilisation and storage breakthrough research
4/04/25
2 items of Media coverage
Press/Media: Research
Equipment
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Capillary viscometer
Chapoy, A. (Manager)
Institute for GeoEnergy EngineeringFacility/equipment: Equipment
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High pressure calorimeter
Chapoy, A. (Manager)
Institute for GeoEnergy EngineeringFacility/equipment: Equipment
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High pressure density measurement
Chapoy, A. (Manager)
Institute for GeoEnergy EngineeringFacility/equipment: Equipment
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High pressure kinetic rigs
Chapoy, A. (Manager)
Institute for GeoEnergy EngineeringFacility/equipment: Equipment
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High Pressure Ultrasonic rig
Chapoy, A. (Manager)
Institute for GeoEnergy EngineeringFacility/equipment: Equipment