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Karen Schou Pedersen

Title Senior Principal Consultant, Managing Director Karen Schou Pedersen
Phone +45 45 87 66 46
Direct +45 45 97 08 19
Fax +45 45 87 62 72
E-mail Email icon
Address Calsep A/S, Lundtoftevej 1C
DK-2800 Kgs. Lyngby, Denmark

Consulting Services, examples

Characterization study for North Sea reservoir

Twelve different well streams from a North Sea reservoir were characterized to a unique set of 7-8 pseudo-components. The compositions covered gas condensates, near critical fluids and oil compositions. The reservoir pressures were of the order 900 bar. PVT data for each of the 12 fluids was matched and Eclipse Comp files generated for each stream.

Asphaltene precipitation study

The potential for asphaltene precipitation in a Venezuelan field was evaluated. Various production strategies were considered including natural depletion, natural gas injection and CO2 injection. It was found that each of these production strategies might lead to severe asphaltene precipitation problems.

QC of PVT reports

PVT reports for a field in Africa covering a period of around 25 years were evaluated and compared. In this evaluation the production from the field during the 25 years of production was to be taken into consideration. The purpose of the project was to provide a best estimate of the composition of the currently produced reservoir fluid and to generate corresponding Eclipse black oil input PVT tables.

Technical expert in arbitration

An Asian power plant claimed that the dewpoint of the natural gas delivered from a field offshore China did not meet the agreed specification. Too high dewpoints might cause severe damage on the gas turbines. The arbitration took place in London, UK. Compositional data for the gas delivered over a period of 7 months was evaluated and dewpoint simulations carried out to check whether the specification was met.

Evaluation of EOS model

An EOS model had been developed some years in advance for a field in the Middle East. The field was reach in H2S with large horizontal variations in H2S concentration. CO2 injection was planned to take place. The task was to evaluate the quality of the EOS model and to find out how well the EOS description matched more recent PVT data including CO2 swelling data.

Education

1986-1989 B. Com. in financing from Copenhagen Business School, Frederiksberg, Denmark
1977-1980 Ph. D. in physical chemistry from the Department of Physical Chemistry at the Technical University of Denmark.
1968-1973 M. Sc. in chemical engineering from the Technical University of Denmark, Kgs. Lyngby, Denmark.

Employments

1982- Calsep A/S, founder and managing director. Development of PVT software. Consultant within oil and gas phase behavior.
1981-1982 Consultant for Statoil, Norway. Project on characterizing heavy hydrocarbons.
1980-1981 University of Edinburgh, Physics Department (based at Institut Laue Langevin, Grenoble, France), liquid physics studied by neutron scattering.
1977-1980 Department of Physical Chemistry, Technical University of Denmark, Ph. D. study.
1974-1977 Hempel Marine Paints, research and development.

Awards

Danish Engineering Society's "Chemical Engineering Award", 1985.

Other

External examiner at the University of Manchester, UK. Author of more than 30 articles about oil and gas phase behavior and 2 textbooks on Oil and Gas Properties.

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