Marinakis Dimitris

Φωτογραφία προσωπικούLocation of the office on map
Full Name:Marinakis Dimitris
Category:EDIP (Laboratory Teaching Staff)
Academic Department:MRED (School of Mineral Resources Engineering)
Laboratory:PVT (PVT & Core Analysis Laboratory)
Email:dmarinakis<at>isc.tuc.gr
Telephone:+302821037876
Location:Office: Μ3.210, MRED Building (Μ3), 2nd Floor

CV

Dimitris Marinakis

 

Contact

School of Mineral Resources Engineering

Technical University of Crete

Chania, Greece, 73100

Phone: (+30) 28210 37876

E-mail: marinaki@mred.tuc.gr 

 

Education

Ph.D. in Reservoir Engineering, 2012

Technical University of Crete, Greece

School of Mineral Resources Engineering

Dissertation:  Experimental and theoretical study of the formation and decomposition conditions for multicomponent natural gas hydrates hosted in subsea sediments of the bathypelagic zone: The case of the subsea mountain Anaximander

Supervisor:     Prof. Nikos Varotsis

 

M.Sc. in Engineering - Economic Systems, 2003

National Technical University of Athens, Greece

Department of Electrical Engineering

( in cooperation with the School of Law Economics & Political Sciences, Faculty of Economics, University of Athens, Greece and the Department of Industrial Management, University of Piraeas, Greece)

Dissertation:  Study of the environmental impact of a vertically integrated process of olives for oil

Supervisor:     Prof. Fragiskos Batzias

 

B.Sc. in Chemical Engineering, 1997

National Technical University of Athens, Greece

Department of Chemical Engineering

GPA: 8.54 / 10

Dissertation:  Formation of monomolecular cooper layer on silica-clay substrates for use as a selective adsorbent in the separation of gas hydrocarbon mixtures

Supervisor:     Prof. Vassiliki Kaselouri-Rigopoulou

 

Languages

English (excellent), Greek (mother tongue), German (fair)

 

Professional experience

2003-present   Research Scientist and Laboratory Teaching Staff in the School of Mineral Resources Engineering, Technical University of Crete, Greece

-     PVT measurements and modeling for oil, gas and gas hydrates

-     Core Analysis testing (permeability, porosimetry, water saturation)

-     Rheological measurements on oil-water emulsions and drilling/cement slurries

-    Upstream facilities teaching and simulation

-     Flow assurance teaching

-     Fluid mechanics teaching

2000-2002      Fluid Catalytic Cracking Production Engineer, Motor Oil Hellas – Corinth Refinery, Corinth, Greece

-     Fluid catalytic cracking production engineer

-     Surveillance during implementation and initial startup of new gasoline desulfurization and benzene removal units

-     Participation in design and implementation of advance process control system for the FCC units (Honeywell Advanced Process Control)

-     Participation in upgrading refinery’s quality system to ISO 9000:2000

1997, 1999      Independent Consultant / Researcher in Hydronomi and HYDRAM Consulting Enterprises, Athens, Greece

      Pioneer works on rehabilitation of water pipeline network & leakage control. Application areas: Peristeri-Glyfada-Vouliagmeni

-     Feasibility study for drying the wastewater sludge produced in the Athens wastewater treatment plant on Psyttalia

-     Feasibility study for the rehabilitation of Galatsi – Menidi - Kiourka Water

-     Designing of existing water pipeline network in AutoCAD and conversion to GIS application

-     Network assimilation on the computer and water flow calculation in the pipelines

1996-1997      Research assistant in Department of Civil Engineering, National Technical University of Athens, Greece

-     Research on the characteristics and disposal potentialities of wastewater sludge, produced during the 1st and 2nd construction phase in the Athens Wastewater treatment plant on Psyttalia island

-     Wastewater flow measurement, comparison with the SCADA (computer records). Data correlation and error analysis

-     Installation and operation of PH-meter, conductivity-meter and data logger in the Athens wastewater treatment plant on Psyttalia island

 

Research interests

Reservoir fluid phase behavior and PVT experimental & modeling

Multiphase equilibria modelling (including cubic EoS models)

Core analysis

Multicomponent gas hydrates phase behavior (experimental studies & simulation)

Gas hydrates host formation properties (permeability, porosity, compressibility)

Water-in-oil and oil-in-water emulsion stability and flow properties for the oil upstream and midstream sectors

Rheology of bentonite suspensions, oil well cements

 

Research highlights

Development of software for performing vapor-liquid equilibrium calculations for teaching purposes - EoS models 

Development of software for multiphase equilibrium calculations with gas hydrates at saturated and unsaturated conditions (Undergraduate thesis in year 2017)

Establishment of experimental systems for PVT and EOR equilibria studies           
(Undergraduate theses in years 2009, 2011, 2015-16)

Establishment of a unique experimental system for gas hydrate phase equilibria studies

Establishment of a core flooding system for studying formation damage by drilling fluids under HPHT conditions and mitigation of formation damage via novel drilling fluid additives

 

Research projects

Development of novel self-healing oil-well cements for use in oil-gas-geothermal drilling. The aim of the study was to determine the synthesis of the cement slurry with the different additives that delivers optimal rheological and fluid-loss performance. A Greek G-cement was tested in comparison with a commercial cement, for rheological and filtration properties. In order to develop cements with improved elastic and self-healing properties, the effect of an elastomer additive (rubber) was also examined on the rheological and filtration behavior of the cement slurries.

Scientific Coordinator for the Technical University of Crete: Prof. V. Kelessidis    
Funded by:TITAN cement S.A., GEOTECH Georesource Technology S.A., ENDITECH S.A.
Budget: 67,000 €      
Duration: Apr.2015 – Jun. 2015

Coursebook on Oil and Gas Exploration and Refining. A text book was written for a training course on processes of oil-gas exploration and refinery – basic theory and technology. The project also included the compilation of an evaluation questionnaire for the trainees.       
Scientific Coordinator for the Technical University of Crete: Prof. N. Varotsis       
Funded by: Technical Chamber of Greece  
Budget: 20,000 €      
Duration: Jan.2014 – Jun. 2014

Core Analysis - acidizing study  in core plugs and grain size distribution – for a Greek Oil Company. Core plugs were treated with hydrochloric acid 15% in order to study the changes in permeability. One of the plugs has undergone a second stage of acidization, in order to assess the effect of excess treatment on the properties of the formation. Grain size distribution study was conducted in the core plugs before and after acidization.
Scientific Coordinator for the Technical University of Crete: Prof. N. Varotsis       
Funded by: Kavala Oil S.A. 
Budget: 5,000 €        
Duration: Nov.2009 – Jan. 2010

Experimental study and modeling of gas hydrate formation conditions and migration mechanisms in marine sediments and the associated release of the enclathrated gas in marine environment. The project tried to indulge into the drive mechanism and host formation characteristics that are responsible for the formation and migration of gas hydrates from dissolved gas in marine sediments, i.e. in absence of any free gas phase. The research involved testing of artificially made gas hydrates in natural marine sediment in laboratory, together with sedimentological analysis and modeling of the gas hydrate formation and migration processes.  

Scientific Coordinator for the Technical University of Crete: Prof. N. Varotsis

Funded by: European Social Fund & National Resources EPEAEK II _ PYTHAGORAS.II

Budget: 90,000 €      

Duration: 2005 – 2007

Experimental study for minimization of the reduction of core permeability from drilling fluids in oil-wells with the addition of Greek lignite. The work aimed to determine the properties of drilling fluids that are responsible for the reduction of core permeability, at high temperatures, and develop proper additives with Greek lignite.     

Scientific Coordinator for the Technical University of Crete: Prof. V. Kelessidis

Funded by: European Social Fund & National Resources EPEAEK II _ PYTHAGORAS.II

Budget: 50,000 €      

Duration: 2005 – 2006

Development of a novel process for seawater desalination and condensation of water solutions and waste water effluents by using gas hydrates.          

The project was in collaboration with TEI Kavalas. A gas azeotrope of Xe and HFC-134a was used to formulate gas hydrates at pressure and temperature conditions near the ambient ones. Subsequently the process of gas hydrate formation and dissociation would be used in a fluidized bed reactor for the extraction of pure water from seawater and waste water effluents.   

Scientific Coordinator for the Technical University of Crete: Prof. N. Varotsis

Funded by: European Social Fund & National Resources EPEAEK II _ ARCHIMIDIS II.

Budget: 75,000 €      

Duration: 2005 – 2007

Study of the influence of mineralogy and overburden pressure on the phase behavior and formation kinetics of structure II gas hydrates contained in marine sediments.

The project was in collaboration with the Centre for gas hydrate research, Heriot Watt University, Edinburgh UK.         

Scientific Coordinator for the Technical University of Crete: Prof. N. Varotsis

Funded by: EU Research Access to the European infrastructure for energy reserve optimization, EIERO.         

Duration Oct. 2003 – Dec.2003

Exploration and Evaluation of the Eastern Mediterranean Sea Gas hydrates and the Associated Deep Biosphere.     

The project was a collaboration between 8 Universities and Research Institutes, targeted to explore and evaluate the Eastern Mediterranean Sea gas hydrates and the associated deep biosphere. The selected area for conducting the gas hydrate study was the Anaximander sea-mountains in the Eastern Mediterranean (av. water depth 2000m, bottom water temp. 12-14oC). The project involved in vitro study of gas hydrate characteristics, as well as study of retrieved pristine samples from the subsea area containing gas hydrates.

Scientific Coordinator for the Technical University of Crete: Prof. N. Varotsis

Funded by: EU Framework Energy, Environment and Sustainable Development, EC CONTRACT EVK3-CT-2002-00068.        

Total Budget: 2,642,100€.    

Duration: 2002 – 2005

 

Publications

Journal papers

  1. Marinakis D., Varotsis N., Perissoratis C., “Gas hydrate dissociation affecting the permeability and consolidation behaviour of deep sea host sediment”, Journal of Natural Gas Science and Engineering, vol. 23, p.p. 55-62, 2015. (5-Year Impact Factor: 2.111,  SJR: 0.890 / Q1)
  2. Marinakis, D., Varotsis, N., “Solubility measurements of methane + ethane + propane mixtures in aqueous phase with gas hydrates at vapor unsaturated conditions”, The Journal of Chemical Thermodynamics, vol. 65, p.p. 100-105, 2013. (5-Year Impact Factor: 2.190,  SJR: 1.095 / Q1)
  3. Gaganis V., Marinakis, D., Varotsis N., “A general framework of model functions for rapid and robust solution of Rachford-Rice type of equations”, Fluid phase equilibria, vol. 322-323, pp. 9-18, 2012. (5-Year Impact Factor: 1.987,  SJR: 0.890 / Q1)

 

Peer-reviewed papers in conference proceedings

  1. Marinakis D., Varotsis N., “Helmholtz energy stability criterion combined with a dual stage phase split for robust multiphase equilibria simulation”, 15th Joint European Thermodynamics Conference, Barcelona, Spain, May 2019.
  2. Marinakis D., Varotsis N., “Experimental study of the gas hydrates dissociation effect on the properties of the host marine sediment”, 4th World Multidisciplinary Earth Sciences Symposium - WMESS, Prague, Czech Republic, September 2018.
  3. Lytra S., Christidis G.E., Marinakis D., “Rheological properties of bentonite suspensions after dynamic aging at high temperatures”, 16th International Clay Conference, Granada, Spain, July 2017.
  4. Biotaki A., Marinakis D., Kompitsaki M., Mavrigiannakis St., Kelessidis V., “The Effect of Mud Contamination on the Properties of a G-Type Cement Slurry”, to be presented in the Annual European Rheology Conference, Copenhagen, Denmark, April 2017
  5. Biotaki A., Marinakis D., Zografou M., Kompitsaki M., Kelessidis V., “Rheological and filtration properties of newly developed class G-type cement slurries; Investigations for field use and comparison with performance of cement slurries using standard oil-well G-type cements”, 11th HSTAM International Congress on Mechanics, Athens, Greece, May 2016.
  6. Marinakis D., Varotsis N., Perissoratis C., “Key sediment properties affected by the presence of gas hydrates in the ‘Anaximander’ deep sea mud volcanoes.”, 9th International Conference on Gas in Marine Sediments, Bremen, Germany, Sep. 15-19, 2008.
  7. Varotsis N., Marinakis D., Karantzi K., Manoutsoglu E., E.Christidis G., Perdicatsis V., Kotsakis G., Perissoratis C., Ioakim Ch. “Sedimentary and sediment stability studies on the Mud Volcanoes (MVs) of the ‘Anaximander’ Mountains, Eastern Mediterranean.” 3rd Annual meeting of Hotspot Ecosystem Research on the Margins of European Seas (HERMES), Carvoeiro, Portugal, March 2008.
  8. Marinakis D., Varotsis N., “Dissociation of multi-component gas hydrates in clays and their impact on the mechanical properties of the host sediment”, Conference Abstract p.69, 3rd International Conference on Submarine Mass Movements and their consequences, Santorini, Greece, October 2007.
  9. Marinakis D., Varotsis N., Lazaridis M., “Effect of gas hydrate stability on climatic change. The case of ‘Anaximander’ mud volcanoes”, Conference Abstract p.122, 10th International Conference on environmental science and technology, Kos Island, Greece, September 2007.
  10. Kelesidis V., Marinakis D., Tsamantaki C., “Laboratory assessment of drilling fluid formation damage in sandstone cores and mitigation with lignite additives for high temperature fields”, paper SPE-107762-MS, SPE European Formation Damage Conference, Scheveningen, The Netherlands, May 2007.
  11. Marinakis D., Varotsis N., “Natural gas hydrates in deep sea sediments: The effect of the host formation on pore pressure and on hydrate characteristics.” Geophysical Research Abstracts, Vol. 9, 10268, 2007.
  12. Marinakis D., Varotsis N., “Hydrates formed from dissolved natural gas in deep marine sediments”, 5th International Workshop on Methane Hydrate Research & Development, Edinburgh, UK, October 2006.
  13. Marinakis D., Varotsis N., Kostakis G., Christidis G, et.al. "Gas hydrate research overview in Greece", 5th International Workshop on Methane Hydrate Research & Development, Edinburgh, UK, October 2006.
  14. Marinakis D., Varotsis N., Kostakis G., Christidis G, “How much gas hydrates can sediment host? Characteristics affecting sediment’s store capacity”, 2nd International Conference in Mineral Resources Management and Environmental Geotechnology, Chania, Greece, September 2006.
  15. Marinakis D., Varotsis N., Pasadakis N., Yang J., Tohidi B., Perissoratis C., “Thermodynamic study of undersaturated Hydrates formed from a Gas Mixture in Marine Sediments”, VIII International Conference on Gas in Marine Sediments, Vigo, Spain, September 2005.
  16. Yang J., Llamedo M., Marinakis D., Tohidi B., Varotsis N. “Successful Applications of a versatile ultrasonic system for gas hydrates in unconsolidated sediments”, Proceedings vol. 1 Kinetics and Transport Phenomena, 5th International Conference on Gas Hydrates,  Trondheim, Norway, June 13-16, 2005. (ISBN 82-519-2065-5)
  17. Marinakis D., Varotsis N., Jinhai Y., Tohidi B. “The effect on the stability of the deep sea sediment caused by the dissociation of the contained gas hydrate: The case of the ‘Anaximander’ mud volcano sea bed”, 32nd International Geological Congress, Florence, Italy, August 2004.
  18. Marinakis D., Varotsis N., Yang J., Tohidi B., Perissoratis C. “Gas Hydrates in the Eastern Mediterranean seabed: Energy potential and technological challenge”, Advances in Mineral Resources Management and Environmental Geotechnology Conference, Chania, Greece, June 2004.
  19. Perissoratis C., Ioakim Chr., Zacharaki P., Lykousis V., Sakellariou D., Kormas K., Woodside J., Amann H., Maggiuli M., Daehlmann A., De Lange G., Casas D., Ercilla G., Meyn V., Varotsis N., Marinakis D. “Exploration and Evaluation of the Eastern Mediterranean Gas hydrates and the Associated Deep Biosphere”, EUROCEAN 2004, Galway, Ireland, May 2004.
  20. Yang J., Marinakis D., Tohidi B., Varotsis N. “Sediment geomechanical response to hydrate dissociation by depressurization: An experimental study”, Geophysical Research Abstracts, vol. 6, 07022, 2004.
  21. Batzias F. A., Sidiras D. K., Marinakis D. “A GIS - Based Mapping of Pollution Caused by an Olive Pomace Oil Mill Operating in a NATURA 2000 Protected Area”, 2nd International Conference on Ecological Protection of the Planet Earth, Sofia, Bulgaria, June 2003.

 

Teaching experience

Undergraduate courses, School of Mineral Resources Engineering, Technical University of Crete

2016-present  Fluid mechanics, 6th semester. (Co-Teaching with Prof. D. Vamvouka)

-        Machinery (pumps, turbines)

-        Basic examples / problems wrt flow equations, equipment dimensioning, pressure-flow calculations

 

Laboratory teaching and exercises in undergraduate courses, School of Mineral Resources Engineering, Technical University of Crete

2013-present  Fluid Mechanics, 6th semester.

-        Fluid rheology

-        Pressure drop of water in an annulus flow system

-        Settling velocities of solids in Newtonian fluids

2004-present  Reservoir fluids phase behavior, 7th semester.

-        Constant mass

-        Two-phase flash

2004-present  Reservoir Engineering, 8th semester.

-        Helium porosimeter

-        Mercury porosimetry

-        Permeability, Klinkenberg correction.  

-        Connate water saturation

 

Laboratory supervisor in undergraduate theses, School of Mineral Resources Engineering, Technical University of Crete

2017          Effect of salinity on the solubility of hydrate forming hydrocarbon gases in the aqueous phase, Mr. Ermis Proestakis, supervisor Prof. N. Varotsis

2016        Experimental determination of the volume changes induced to hydrocarbon mixtures due to CO2 solution at high pressures and temperatures, Mr. Panagiotis Aslanidis, supervisor Prof. N. Varotsis

2015        Experimental determination of vapor-liquid density and isothermal compressibility for hydrocarbon mixtures at two-phase equilibrium conditions, Mrs. Melina Michailidi, supervisor Prof. N. Varotsis

2011        Experimental study of the compressibility factor (z) for liquid hydrocarbon mixtures with methane, Mrs. Stavroula Zervopoulou, supervisor Prof. N. Varotsis

2009        Experimental study of the compressibility factor (z) for rich CO2 and N2 hydrocarbon gas mixtures, Mr. Rami Mahmoud, supervisor Prof. N. Varotsis

 

Laboratory assistant in undergraduate theses, School of Mineral Resources Engineering, Technical University of Crete

2019        Rheological properties of magnesium bentonites and sepiolites at high temperature conditions, Mr. Nikos Athanasakis, supervisor Prof. G. Christidis

2017        Development of experimental methodologies for the formation and characterization of petroleum emulsions, Mrs. Theodora Dalakou, supervisor Prof. N. Pasadakis

2016        Rheological properties of bentonite drilling slurries subjected to thermal aging at high temperatures, Mrs. Sofia Lytra, supervisor Prof. G. Christidis

 

MSc courses in Petroleum Engineering, School of Mineral Resources Engineering, Technical University of Crete

2016-present  PVT simulation examples in CMG’s WinProp software, 2nd semester. (Instructor Prof. N. Varotsis)

2015-present  Production Engineering, 2nd semester. (Co-Teaching with Dr. V. Gaganis)

-        Upstream facilities for oil and gas production

-        Flow assurance

 

Scientific supervisor in MSc theses in Petroleum Engineering, School of Mineral Resources Engineering, Technical University of Crete, Greece

2019        Basic Design of Gas Process Train in Upstream Facilities, Mr. Nikos Xynopoulos

2019        Basic Design and simulation of gas production pipelines, Mr. Suleiman Yusuf

2019        LNG production technologies and process simulation, Mrs. Paraskevi Fragou

2018        Basic Design of Oil Process Train in Upstream Facilities, Mr. Ali Mohsin

2018        Basic Design and Simulation of Oil Production Pipelines, Mr. Clement-Gyasi Siaw

2017        Heavy and Extra Heavy Oil: Midstream processes and transportation, Mrs. Christina Argyropoulou          

2017        Pressure maintenance in oil production pipelines: Equipment and simulation, Mrs. Dimitra Dalamanga 

2017        Oil-in-Water emulsions: Techniques and processes for maximizing the oil recovery in high water cut oil wells, Mr. Vassilis Papakostas    

2017        Water-in-Oil emulsion treatment of Crude Oil effluent: Techniques, additives and simulation, Mrs. Despoina Savvidou

2016        Basic Design of Oil Process Train in Upstream Facilities, Mr. Andreas Klothakis

 

Laboratory supervisor in MSc theses

2017        Treatment of water produced from the oil wells: Processes and simulation, Mrs. Danai-Evgenia Vallianou-Setta, supervisor Prof. N. Varotsis, M.Sc. in Geotechnology and the Environment, School of Mineral Resources Engineering, Technical University of Crete, Greece (pending)

2016        Solubility of gas hydrate forming hydrocarbon gases in aqueous mixtures at subsea marine sediments conditions, Mrs. Georgia G. Bekiari, supervisor Prof. N. Varotsis, M.Sc. in Petroleum Engineering Technology, Department of Petroleum & Natural Gas Technology, School of Engineering Technology, Eastern Macedonia and Thrace Institute of Technology, Greece

2013        Development of an experimental setup for measuring the compressibility factor (z) of petroleum fluids at high pressures and temperatures. Comparison of test results with EoS simulations, Mr. Rami Mahmoud, supervisor Prof. N. Varotsis, M.Sc. in Geotechnology and the Environment, School of Mineral Resources Engineering, Technical University of Crete, Greece

 

Service

External reviewer for Journals

Journal of Natural Gas Science & Engineering

Energy and Fuels

 

Miscellaneous

1993-1998      Member of IAESTE (International Association for the Exchange of Students for Technical Experience), National Technical University of Athens, Greece

2004-2012      Representative of the Graduate students at the School of Mineral Resources Engineering, Technical University of Crete, Greece

2014-2016      Secretary of the Laboratory Teaching Staff Union at the Technical University of Crete, Greece

2016-present  Chairman of the Laboratory Teaching Staff Union at the Technical University of Crete, Greece

© Technical University of Crete 2012