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reference: 4985810

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connectionPointId: 7

lastModificationDate: 1557318607873

stillingsbetegnelse:
PhD position for Experimental Investigations of Barite Scale Formation Chemistry and Kinetics at Well Conditions

jobbeskrivelse:

The Danish Hydrocarbon Research and Technology Centre (DHRTC), invites applicants for a PhD position on barite scale formation chemistry and kinetics at well conditions. DHRTC is a multidisciplinary research centre established by the Danish Underground Consortium and DTU. As part of the Danish national strategy on North Sea energy resources, the research centre is an ambitious, targeted effort to extend field life time, improve recovery and propose innovative solutions to more sustainable and cost effective production of hydrocarbons from the Danish North Sea.

Deposits of hard and soft scale and corrosion of well materials are contributing factors for potential loss of well integrity and production. Enhanced recovery schemes which lead to alteration of the water chemistry in the wells may affect the rate of scale precipitation and corrosion, potentially to the point of negating the targeted improvement in recovery factor. Therefore, improved understanding of observed mechanisms and development of testing methods as well as improved modelling tools for predicting and potentially mitigating scale deposit and corrosion is essential for optimal recovery of the remaining reserves. The DHRTC research program and this advertised position on scale aims to improve the understanding of the complex and coupled chemical mechanisms that govern the deposition of scales (e.g. CaCO3, BaSO4, FeCO3, FeS). The project will involve work with partner laboratories at DTU and with the team in the fluid characterization and modelling groups at DHRTC.

Responsibilities and tasks

The candidate will work on a primarily experimental project which will be an integrated part of the scale and corrosion program at the DHRTC. The plan for this project is experimental studies of the kinetics of formation of BaSO4 and other insoluble scales with focus on nucleation and flow regimes. The project will focus on setting up a flow cell to simulate realistic pipe flow wherein the factors influencing scale build-up can be controlled. The flow cell will be equipped with different sampling ports and and equipment for monitoring the solid and the fluid chemistry during the experiment. In addition to this project, the studies of BaSO4 scale currently includes two linked a projects at Heriot-Watt University and at the Center for Energy Resources Engineering (CERE) at DTU. The candidate is expected to work closely with these partners and the team at DHRTC to perform innovative, fundamental, and applied research on:

• Experimental scale deposition kinetics
• Setting up a reaction cell to study scale build up with a novel design to mimic realistic pipe flow
• Investigation of scale build-up and the dependence on flow, concentrations and temperature.
• Investigation of the effect of crude oil chemistry and composition on the deposition of BaSO4 scale and other scales.

Techniques available for analysis include X-ray tomography, GC-MS/LC-MS, spectroscopic equipment (FTIR/UV), ICP-OES, SEM, IFT equipment amongst others.

Application potential

The line-of-sight application potential of this project is to assist in reaching a better understanding of the conditions that lead to scale build up in North Sea Oil Well conditions.

Qualifications

Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree in analytical or physical chemistry, chemical engineering.

• Exceptional skills in experimental physical chemistry/chemical engineering;
• Experience with fluid dynamics and flow systems;
• Experience with and a strong interest in setting up advanced experiments;
• Interest in applied research;
• Ability to work in a multi-disciplinary environment;
• Excellent writing and communication skills in English;

You can read about the scientific basis for the centre's activities here: www.oilgas.dtu.dk/english/Research. http://www.oilgas.dtu.dk/english/Research

Approval and Enrolment of PhD students

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. http://www.dtu.dk/english/Education/PhD/Rules/PhDguide

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 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 upon with the relevant union. The period of employment is 3 years.

You can read more about career paths at DTU here. http://www.dtu.dk/english/about/job-and-career/working-at-dtu/career-paths

Further information

Further information may be obtained from Senior Researcher Karen Feilberg, klfe (at) dtu.dk,

You can read about the scientific basis for the centre's activities here: www.oilgas.dtu.dk/english/Research http://www.oilgas.dtu.dk/english/Research

Application procedure

Please submit your online application no later than 7 June 2019.

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) http://www.dtu.dk/english/Education/phd/Applicant/Pre_acceptance-1-

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

Applications and enclosures received after the deadline will not be considered.

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

The overarching purpose of The Danish Hydrocarbon Research and Technology Centre is to identify new technological and conceptual solutions that will enable increased oil and gas extraction in the Danish section of the North Sea. The research activities at the centre cover selected aspects of expertise: Reservoir characterization, Enhanced Oil & Gas Recovery Processes, Drilling & Production Technology Concepts and Production Facilities, Materials Research & Design. The centre will develop deep, new understanding within these disciplines with a line--of--sight to application. Located at The Technical University of Denmark research groups at the University of Copenhagen, Aarhus University, Aalborg University and the Geological Survey of Greenland and Denmark will be affiliated with the Centre. When fully operational, the centre will employ and engage more than 100 people.

DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 6,000 advance science and technology to create innovative solutions that meet the demands of society, and our 11,200 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.


numberOfPosts: 1

jobCategoriesCodes_0: http://data.europa.eu/esco/isco/C2310

abstractJV_contact_0: Please apply using one of the specified channels

positionTypeCode: directhire

contractTypeCodes_0: fulltime

Arbejdsgiver Navn: Danmarks Tekniske Universitet

source: DK-STAR