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PhD scholarship in Corrosion Reliability of Production Wells used in the Oil and Gas Industry, Denmark

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The Materials and Surface Engineering section in the Department of Mechanical Engineering at the Technical University of Denmark is seeking a candidate for the PhD position in the field of The impact of the Seawater fraction on the corrosion behavior of production wells focusing on analyzing the corrosion mechanisms and defining governing parameters increasing the corrosion rates. Proposed PhD project is a part of the work package conducted in collaboration between The Danish Hydrocarbon Research and Technology Centre (DHRTC) and Maersk Oil (MOG).

The PhD position is for 3 years period and expected to start from January 1, 2017.

Project background and content
Corrosion is a common problem in the oil and gas industry, which reduces the lifetime of oilfield equipment. An extensive internal corrosion in the wells often leads to replacement of used materials to corrosion resistant alloys. In the case of wells, workovers are performed, when the well integrity is at risk due to corrosion.   

To prevent corrosion, e.g. corrosion inhibitors, H2S and O2 scavengers or biocides can be used. However, despite of using such mitigation techniques, extensive corrosion in wells is still observed. The conditions present in the wells are complex and the severity of corrosion depends on various environmental (e.g. CO2/H2S/O2, seawater fraction, temperature, pressure, liquid flow velocity, stresses etc.) and material variables (e.g. chemical composition, microstructure).   

Recent corrosion study made in collaboration between DHRTC, DTU and MOG, showed that the penetration depth related to pitting corrosion was increasing as a function of Seawater fraction (SW %). Results showed that production wells with highest SW %, experienced highest corrosion rates. However, it is unclear whether such phenomena was caused by increased Cl-, SO4- and H2S content, or decreased pH and temperature, which all are observed when having seawater ingress. Consequently, the aim of this study will be to i) understand corrosion mechanisms under simulated well conditions, ii) define governing parameters, which are responsible for increasing corrosion rates when seeing Seawater ingress.

Qualifications
Candidates should have a master's degree in materials science and engineering, chemistry or related subjects such as corrosion science and petroleum engineering with knowledge of materials engineering and chemistry. Prior experience on petroleum engineering, corrosion science or knowledge related to oil and gas systems is an advantage. Combination of knowledge in corrosion, materials, and petroleum is also preferred.   

Approval and Enrolment
The scholarships 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.   

Assessment
The assessment of the applicants will be made by Professor Rajan Ambat.

We offer
We offer an interesting and challenging job in an international environment focusing on education, research, scientific advice and innovation, which contribute to enhancing the economy and improving social welfare. We strive for academic excellence, collegial respect and freedom tempered by responsibility. The Technical University of Denmark (DTU) is a leading technical university in northern Europe and benchmarks with the best universities in the world.   

Salary and appointment terms
The salary and appointment terms are consistent with the current rules for PhD degree students. The period of employment is 3 years.  

Further information
Further information may be obtained from Professor Rajan Ambat, tel.: +45 4525 2181, e-mail:
ram@mek.dtu.dk.   

You can read more about Department of Mechanical Engineering on
www.mek.dtu.dk/english.  

Project will also be a collaboration with
DHRTC, DTU and Department of Chemical and Biochemical Engineering, DTU

Application
Please submit your online application no later than November 25, 2016. 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: 

  • A letter motivating the application (cover letter)
  • 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)

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

Further Information

Application Deadline : 15 November 2016

PhD scholarship in Corrosion Reliability of Production Wells used in the Oil and Gas Industry : PDF

Contact Email:

Posted on 2016-11-06 23:41:48


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