Gerhard Nygaard

887 total citations
47 papers, 706 citations indexed

About

Gerhard Nygaard is a scholar working on Ocean Engineering, Mechanical Engineering and Civil and Structural Engineering. According to data from OpenAlex, Gerhard Nygaard has authored 47 papers receiving a total of 706 indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Ocean Engineering, 28 papers in Mechanical Engineering and 6 papers in Civil and Structural Engineering. Recurrent topics in Gerhard Nygaard's work include Drilling and Well Engineering (43 papers), Reservoir Engineering and Simulation Methods (29 papers) and Hydraulic Fracturing and Reservoir Analysis (26 papers). Gerhard Nygaard is often cited by papers focused on Drilling and Well Engineering (43 papers), Reservoir Engineering and Simulation Methods (29 papers) and Hydraulic Fracturing and Reservoir Analysis (26 papers). Gerhard Nygaard collaborates with scholars based in Norway, United States and Australia. Gerhard Nygaard's co-authors include Geir Nævdal, Michael Nikolaou, Erlend H. Vefring, Kjell Kåre Fjelde, Jing Zhou, Rolf J. Lorentzen, John–Morten Godhavn, Saba Mylvaganam, Jan Einar Gravdal and Ole Morten Aamo and has published in prestigious journals such as Journal of Process Control, SPE Journal and SPE Drilling & Completion.

In The Last Decade

Gerhard Nygaard

47 papers receiving 665 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Gerhard Nygaard Norway 17 630 444 86 57 33 47 706
Øyvind Nistad Stamnes Norway 11 364 0.6× 252 0.6× 160 1.9× 31 0.5× 36 1.1× 21 491
Knut S. Bjørkevoll Norway 18 850 1.3× 536 1.2× 24 0.3× 145 2.5× 34 1.0× 79 906
Sippe G. Douma Netherlands 12 248 0.4× 217 0.5× 149 1.7× 21 0.4× 30 0.9× 29 420
Peng Xie China 11 139 0.2× 94 0.2× 45 0.5× 73 1.3× 12 0.4× 42 292
G. Bernasconi Italy 10 167 0.3× 102 0.2× 31 0.4× 75 1.3× 122 3.7× 71 355
Carl Horst Albrecht Brazil 12 238 0.4× 123 0.3× 38 0.4× 90 1.6× 7 0.2× 33 399
Liangchao Qu China 9 123 0.2× 239 0.5× 179 2.1× 40 0.7× 17 0.5× 20 355
Nikolaos Politis United States 5 134 0.2× 114 0.3× 64 0.7× 316 5.5× 31 0.9× 7 398
Sathish Sankaran United States 14 553 0.9× 357 0.8× 40 0.5× 7 0.1× 46 1.4× 81 610
Qishuai Yin China 11 243 0.4× 170 0.4× 24 0.3× 44 0.8× 26 0.8× 28 315

Countries citing papers authored by Gerhard Nygaard

Since Specialization
Citations

This map shows the geographic impact of Gerhard Nygaard'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 Gerhard Nygaard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gerhard Nygaard more than expected).

Fields of papers citing papers by Gerhard Nygaard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gerhard Nygaard. 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 Gerhard Nygaard. The network helps show where Gerhard Nygaard may publish in the future.

Co-authorship network of co-authors of Gerhard Nygaard

This figure shows the co-authorship network connecting the top 25 collaborators of Gerhard Nygaard. A scholar is included among the top collaborators of Gerhard Nygaard 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 Gerhard Nygaard. Gerhard Nygaard is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Nygaard, Gerhard. (2019). On a Novel, Simplified Model Framework Describing Ascorbic Acid Concentration Dynamics. PubMed. 2019. 2880–2886. 6 indexed citations
2.
Bjørkevoll, Knut S., et al.. (2017). DEMO2000 - Drilling Mud Process Control. 3 indexed citations
3.
Nygaard, Gerhard, et al.. (2012). Utilizing Instrumented Stand Pipe for Monitoring Drilling Fluid Dynamics for Improving Automated Drilling Operations. IFAC Proceedings Volumes. 45(8). 217–222. 11 indexed citations
4.
Nygaard, Gerhard, et al.. (2011). Managed-Pressure Drilling: Using Model Predictive Control To Improve Pressure Control During Dual-Gradient Drilling. SPE Drilling & Completion. 26(2). 182–197. 28 indexed citations
5.
Zhou, Jing & Gerhard Nygaard. (2011). Nonlinear adaptive observer for managed pressure drilling system. 79–84. 7 indexed citations
6.
Nygaard, Gerhard, et al.. (2010). Automatic control of managed pressure drilling. 442–447. 26 indexed citations
7.
Zhou, Jing & Gerhard Nygaard. (2010). Control and estimation of downhole pressure in managed pressure drilling operations. 1–6. 13 indexed citations
8.
9.
Nygaard, Gerhard, et al.. (2009). Advanced Automatic Control for Dual-Gradient Drilling. SPE Annual Technical Conference and Exhibition. 11 indexed citations
10.
Gravdal, Jan Einar, Hans Petter Lohne, Gerhard Nygaard, Erlend H. Vefring, & Rune W. Time. (2008). Automatic Evaluation of Near-Well Formation Flow Interaction During Drilling Operations. 7 indexed citations
11.
Nygaard, Gerhard, et al.. (2008). On modeling and observer design of fluid flow dynamics for petroleum drilling operations. 1857–1863. 3 indexed citations
12.
13.
14.
Nygaard, Gerhard, Erlend H. Vefring, Kjell Kåre Fjelde, et al.. (2007). Bottomhole Pressure Control During Drilling Operations in Gas-Dominant Wells. SPE Journal. 12(1). 49–61. 25 indexed citations
15.
16.
Nygaard, Gerhard & Geir Nævdal. (2005). Modelling two-phase flow for control design in oil well drilling. 675–680. 16 indexed citations
17.
Nygaard, Gerhard, et al.. (2004). Underbalanced Drilling: Improving Pipe Connection Procedures Using Automatic Control. Proceedings of SPE Annual Technical Conference and Exhibition. 1 indexed citations
18.
Nygaard, Gerhard, Erlend H. Vefring, Kjell Kåre Fjelde, et al.. (2004). Bottomhole Pressure Control During Pipe Connection in Gas-Dominant Wells. 8 indexed citations
19.
Nygaard, Gerhard, et al.. (2004). Bottomhole Pressure Control During Pipe Connection in Gas-Dominant Wells. 3 indexed citations
20.
Nygaard, Gerhard, et al.. (2004). Underbalanced Drilling: Improving Pipe Connection Procedures Using Automatic Control. SPE Annual Technical Conference and Exhibition. 9 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.

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