PhD position: Study of Gas Liberation in a Tight Porous Medium

DTU Kemiteknik
torsdag 14 sep 17

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Frist 28. september 2017
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Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, has an opportunity to support a PhD project: "Study of gas liberation in a tight porous medium", in the framework of the large project “Reservoir drive from the secondary gas cap development in low permeability reservoirs”. 

Description of the project
During oil production, solution gas is liberated and forms a free-gas phase due to decline in reservoir pressure. The nature of the liberated gas phase is crucial to the reservoir drive mechanism.

If liberated gas bubbles easily coalescence to form a mobile gas phase this can support the reservoir energy by an effective gas-oil gravity drainage mechanism. On the opposite, the liberated gas may persist as disconnected gas bubbles. Then the gas bubbles can block individual pore/throats and thereby lower the effective permeability of the reservoir. The goal of the project, carried out in collaboration with GEUS, is to determine the form and the contribution of the liberated gas into the oil production.

The task of the PhD student
The task for the Ph.D. student will be to perform experimental studies of the gas liberation in a porous medium of a low permeability reservoir under decreasing pressure. Mobility of the formed gas bubbles and their effect on the effective oil permeability will be determined. The experiments will be accompanied by micro-modeling of the bubble production, mobility and coalescence, under relevant thermodynamic conditions.

The student is expected to exhibit creativity, openness to new challenges and interest to independent and nontrivial research.

The project will be supervised by Associate Professor Alexander Shapiro (DTU) and Dr. Carsten Møller Nielsen (GEUS).

Required skills 

  • A degree (M.Sc.) in chemical or petroleum engineering, technical physics, other relevant areas;
  • Knowledge of the fundamentals of flows and fluid distribution in porous media;
  • Knowledge of thermodynamics of phase equilibria and transport processes;
  • Good writing skills in English;
  • Interest to independent research

Approval and Enrolment
The scholarship for the PhD degree are subject to academic approval, and the candidates will be enrolled in one of the general degree programmes of DTU. For information about the general requirements for enrolment and the general planning of the scholarship studies, please see the DTU PhD Guide.  

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and an academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed with the relevant union. The period of employment is 3 years.

Further information
Further information may be obtained from Associate Professor Alexander Shapiro, tel.: +45 4525 2881.

You can read more about DTU Chemical Engineering on www.kt.dtu.dk/english.

Application
Please submit your online application no later than 28 September 2017 (Local time). Applications must be submitted as one pdf file containing all materials to be given consideration. To apply, please open the link "Apply online," fill in the online application form, and attach all your materials in English in one pdf file. The file must include: 

  • Cover letter outlining the motivation for the PhD study and for this particular project
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and excel spreadsheet here)
  • References

Candidates may apply prior to ob­tai­ning their master's degree, but cannot begin before having received it.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 5,800 advance science and technology to create innovative solutions that meet the demands of society; and our 11,000 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government, and public agencies.