Job description
Time-lapse seismic methods have become fairly standard for subsurface monitoring as well as for CO2 monitoring. Permanent, 3D monitoring is an added step which allows better repeatabilities, a necessity specifically for monitoring on land.
Over the past years, controlled-source electromagnetic (CSEM) methods have become more attractive in the field of 3D reservoir monitoring. Although the method and its applications are still part of ongoing research, the method has the potential to be used for monitoring the subsurface.
Both the seismic and the (CS)EM methods have their advantages: while seismic methods obtain detailed structural information and mechanical properties, they have low sensitivity to the changes in properties due to CO2 injection. EM methods are sensitive to the property changes due to CO2 injection, but their spatial resolution is very limited.
Over the past years, controlled-source electromagnetic (CSEM) methods have become more attractive in the field of 3D reservoir monitoring. Although the method and its applications are still part of ongoing research, the method has the potential to be used for monitoring the subsurface.
Both the seismic and the (CS)EM methods have their advantages: while seismic methods obtain detailed structural information and mechanical properties, they have low sensitivity to the changes in properties due to CO2 injection. EM methods are sensitive to the property changes due to CO2 injection, but their spatial resolution is very limited.
Coupled inversion aims at estimating directly the desired property distributions inside a target volume combining all available data and other independent information. Here, not only structural but also petrophysical properties are incorporated, and all data should help explain the final suite of model estimates. When used in permanent-monitoring mode, production data should be included, and the subsurface flow can be incorporated in the coupled-inversion methodology. In that case, the monitoring data should produce changes in the reservoir that can be explained by the flow model and production data.
Requirements
The candidate should have a strong background in theoretical geophysics, be familiar with numerical methods for modelling and optimisation, and have ample programming experience.
Conditions of employment
TU Delft offers an attractive benefits package, including a flexible work week, free high-speed Internet access from home, and the option of assembling a customised compensation and benefits package (the 'IKA'). Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities.
Information and application
For more information about this position, please contact Guy Drijkoningen, phone: +31 (0)15-2787846, e-mail: g.g.drijkoningen@tudelft.nl. To apply, please e-mail a detailed CV, publications list, references and a letter of application by 11 March 2011 to W. A. Maertens, Recruitment-CiTG@tudelft.nl.
When applying for this position, make sure to mention vacancy number CITG11-09.
When applying for this position, make sure to mention vacancy number CITG11-09.
Factsheet
| Department/faculty | Civil Engineering and Geosciences |
|---|---|
| Level | Master degree |
| Hours per week | 38 |
| Location | Delft |
| Contract | 4 years |
| Salary | €2042 to €2612 per month gross |
| Closing date | 11-03-2011 |
| Vacancy nr. | CITG11-09 |
Information
For more information about this job, please contact Guy Drijkoningen, Associate Professor.
For more information about the application procedure, please contact W. A. Maertens/HRM.
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