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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.


Dr 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

Dr Antonin Chapoy

Professorial Research Fellow

Hydrates, Flow Assurance & Phase Equilibria  | Institute of Petroleum Engineering, Heriot-Watt UniversityTel: +44 (0)131 451 3797 / e-mail: a.chapoy@hw.ac.uk/ Skype: antonin.chapoy /web: http://www.pet.hw.ac.uk/research/co2cts/

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Co Author Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2003 2019

Determination of distribution factors for heavy n-alkanes (nC12-nC98) in High Temperature Gas Chromatography

Hernandez-Baez, D. M., Reid, A., Chapoy, A. & Tohidi, B., 26 Apr 2019, In : Journal of Chromatography A. 1591, p. 138-146 9 p.

Research output: Contribution to journalArticle

Gas Chromatography
Hot Temperature

Establishing the Maximum Carbon Number for Reliable Quantitative Gas Chromatographic Analysis of Heavy Ends Hydrocarbons. Part 3. Coupled Pyrolysis-GC Modeling

Hernandez-Baez, D. M., Reid, A., Chapoy, A., Tohidi, B. & Bounaceur, R., 21 Mar 2019, In : Energy and Fuels. 33, 3, p. 2045–2056 12 p.

Research output: Contribution to journalArticle

gas chromatography

Experimental study to estimate CO 2 solubility in a high pressure high temperature HPHT reservoir carbonate aquifer

Fakrumie Zaidin, M., Priyatna Kantaatmadja, B., Chapoy, A., Ahmadi, P. & Burgass, R., 2019, SPE Middle East Oil and Gas Show and Conference, 18-21 March, Manama, Bahrain. Society of Petroleum Engineers , SPE-195003-MS

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Giant Barocaloric Effect at the Spin Crossover Transition of a Molecular Crystal

Vallone, S. P., Tantillo, A. N., dos Santos, A. M., Molaison, J. J., Kulmaczewski, R., Chapoy, A., Ahmadi, P., Halcrow, M. A. & Sandeman, K. G., 15 Apr 2019, In : Advanced Materials. 1807334.

Research output: Contribution to journalArticle

pressure dependence
magnetic measurement

Characterization of reservoir fluids: A predictive model for interfacial and bulk phase equilibrium properties

Pereira, L. M. C., Vega, L. F., Chapoy, A. & Tohidi, B., 9 May 2018, In : SEG Global Meeting Abstracts. p. 8-11 4 p.

Research output: Contribution to journalConference article

Open Access
phase equilibrium
Phase equilibria
Equations of state

Activities 2004 2015

  • 2 Publication peer-review
  • 1 Editorial activity

Journal of Natural Gas Science and Engineering (Journal)

Antonin Chapoy (Editorial board member)
1 Jan 2015

Activity: Publication peer-review and editorial workEditorial activity

Journal of Chemical and Engineering Data (Journal)

Antonin Chapoy (Peer reviewer)

Activity: Publication peer-review and editorial workPublication peer-review

Fluid Phase Equilibria (Journal)

Antonin Chapoy (Peer reviewer)

Activity: Publication peer-review and editorial workPublication peer-review