Per Thomassen

712 total citations
10 papers, 585 citations indexed

About

Per Thomassen is a scholar working on Biomedical Engineering, Analytical Chemistry and Fluid Flow and Transfer Processes. According to data from OpenAlex, Per Thomassen has authored 10 papers receiving a total of 585 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Biomedical Engineering, 6 papers in Analytical Chemistry and 4 papers in Fluid Flow and Transfer Processes. Recurrent topics in Per Thomassen's work include Phase Equilibria and Thermodynamics (8 papers), Petroleum Processing and Analysis (6 papers) and Thermodynamic properties of mixtures (4 papers). Per Thomassen is often cited by papers focused on Phase Equilibria and Thermodynamics (8 papers), Petroleum Processing and Analysis (6 papers) and Thermodynamic properties of mixtures (4 papers). Per Thomassen collaborates with scholars based in Norway and Denmark. Per Thomassen's co-authors include Karen Schou Pedersen, Aage Fredenslund, Peter Lindskou Christensen, Anders Michael Fredenslund, Aa. Fredenslund and Karsten Pedersen and has published in prestigious journals such as SHILAP Revista de lepidopterología, Chemical Engineering Science and Fluid Phase Equilibria.

In The Last Decade

Per Thomassen

10 papers receiving 529 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Per Thomassen Norway 9 430 203 201 190 161 10 585
T.-M Guo China 11 291 0.7× 168 0.8× 232 1.2× 149 0.8× 156 1.0× 18 689
T. S. Brown United States 10 372 0.9× 214 1.1× 91 0.5× 184 1.0× 136 0.8× 13 535
Lyman Yarborough United States 9 328 0.8× 101 0.5× 244 1.2× 140 0.7× 306 1.9× 15 578
Aa. Fredenslund Denmark 15 586 1.4× 342 1.7× 146 0.7× 214 1.1× 115 0.7× 23 837
Tony Moorwood Portugal 5 347 0.8× 181 0.9× 155 0.8× 189 1.0× 107 0.7× 8 503
E. Béhar France 16 324 0.8× 168 0.8× 260 1.3× 322 1.7× 219 1.4× 39 602
Laurent Avaullée France 11 327 0.8× 142 0.7× 198 1.0× 140 0.7× 236 1.5× 13 524
You‐Xiang Zuo Denmark 12 385 0.9× 161 0.8× 148 0.7× 43 0.2× 129 0.8× 14 575
Vicki G. Niesen United States 12 434 1.0× 275 1.4× 84 0.4× 181 1.0× 134 0.8× 23 609
M.R. Brulé United States 8 215 0.5× 88 0.4× 146 0.7× 84 0.4× 220 1.4× 11 457

Countries citing papers authored by Per Thomassen

Since Specialization
Citations

This map shows the geographic impact of Per Thomassen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Per Thomassen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Per Thomassen more than expected).

Fields of papers citing papers by Per Thomassen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per Thomassen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Per Thomassen. The network helps show where Per Thomassen may publish in the future.

Co-authorship network of co-authors of Per Thomassen

This figure shows the co-authorship network connecting the top 25 collaborators of Per Thomassen. A scholar is included among the top collaborators of Per Thomassen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Per Thomassen. Per Thomassen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

10 of 10 papers shown
1.
Pedersen, Karsten, et al.. (1989). Contributions in petroleum geology and engineering. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 14 indexed citations
2.
Thomassen, Per, et al.. (1988). Modern Reservoir Management. a Contribution to Improved Recovery. SHILAP Revista de lepidopterología. 43(3). 323–335. 1 indexed citations
3.
Pedersen, Karen Schou, Per Thomassen, & Aage Fredenslund. (1988). On the dangers of “tuning” equation of state parameters. Chemical Engineering Science. 43(2). 269–278. 39 indexed citations
4.
Pedersen, Karen Schou, et al.. (1988). Characterization of gas condensate mixtures. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 57 indexed citations
5.
Thomassen, Per, et al.. (1986). Studies of Gas Injection Into Oil Reservoirs by a Cell-to-Cell Simulation Model. SPE Annual Technical Conference and Exhibition. 26 indexed citations
6.
Pedersen, Karen Schou, Per Thomassen, & Aage Fredenslund. (1985). Thermodynamics of petroleum mixtures containing heavy hydrocarbons. 3. Efficient flash calculation procedures using the SRK equation of state. Industrial & Engineering Chemistry Process Design and Development. 24(4). 948–954. 82 indexed citations
7.
Pedersen, Karen Schou, Aage Fredenslund, Peter Lindskou Christensen, & Per Thomassen. (1984). Viscosity of crude oils. Chemical Engineering Science. 39(6). 1011–1016. 181 indexed citations
8.
Pedersen, Karen Schou, Per Thomassen, & Aage Fredenslund. (1984). Thermodynamics of petroleum mixtures containing heavy hydrocarbons. 1. Phase envelope calculations by use of the Soave-Redlich-Kwong equation of state. Industrial & Engineering Chemistry Process Design and Development. 23(1). 163–170. 122 indexed citations
9.
Pedersen, Karen Schou, Per Thomassen, & Aage Fredenslund. (1984). Thermodynamics of petroleum mixtures containing heavy hydrocarbons. 2. Flash and PVT calculations with the SRK equation of state. Industrial & Engineering Chemistry Process Design and Development. 23(3). 566–573. 23 indexed citations
10.
Pedersen, Karen Schou, Per Thomassen, & Aa. Fredenslund. (1983). SRK-EOS calculation for crude oils. Fluid Phase Equilibria. 14. 209–218. 40 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Rankless by CCL
2026