Roy M. Knapp

2.1k total citations · 1 hit paper
21 papers, 1.5k citations indexed

About

Roy M. Knapp is a scholar working on Ocean Engineering, Mechanical Engineering and Pollution. According to data from OpenAlex, Roy M. Knapp has authored 21 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Ocean Engineering, 8 papers in Mechanical Engineering and 6 papers in Pollution. Recurrent topics in Roy M. Knapp's work include Enhanced Oil Recovery Techniques (10 papers), Hydraulic Fracturing and Reservoir Analysis (8 papers) and Reservoir Engineering and Simulation Methods (6 papers). Roy M. Knapp is often cited by papers focused on Enhanced Oil Recovery Techniques (10 papers), Hydraulic Fracturing and Reservoir Analysis (8 papers) and Reservoir Engineering and Simulation Methods (6 papers). Roy M. Knapp collaborates with scholars based in United States, Algeria and Denmark. Roy M. Knapp's co-authors include Michael J. McInerney, G. E. Jenneman, David P. Nagle, Noha H. Youssef, Kathleen E. Duncan, Mohammad Reza Javaheri, Faruk Civan, D.E. Menzie, Vishvesh K. Bhupathiraju and Ralph S. Tanner and has published in prestigious journals such as Applied and Environmental Microbiology, Water Resources Research and AIChE Journal.

In The Last Decade

Roy M. Knapp

21 papers receiving 1.4k citations

Hit Papers

Comparison of methods to detect biosurfactant production ... 2003 2026 2010 2018 2003 200 400 600
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Comparison of methods to detect biosurfactant production by diverse microorganisms
    2003 725 citations Noha H. Youssef, Kathleen E. Duncan et al. Journal of Microbiological Methods profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Roy M. Knapp United States 14 950 395 309 222 204 21 1.5k
Huimei Tian China 15 454 0.5× 226 0.6× 107 0.3× 167 0.8× 109 0.5× 25 885
Richard P. J. Swannell United Kingdom 16 975 1.0× 83 0.2× 144 0.5× 420 1.9× 111 0.5× 25 1.4k
Chang-Qiao Chi China 15 609 0.6× 131 0.3× 369 1.2× 412 1.9× 102 0.5× 20 1.0k
Vishvesh K. Bhupathiraju United States 15 472 0.5× 56 0.1× 274 0.9× 359 1.6× 143 0.7× 18 1.0k
Diyana S. Sokolova Russia 17 387 0.4× 129 0.3× 316 1.0× 294 1.3× 118 0.6× 65 884
Christopher G. Struchtemeyer United States 11 192 0.2× 75 0.2× 400 1.3× 247 1.1× 230 1.1× 12 1.2k
C.O. Obuekwe Kuwait 16 433 0.5× 57 0.1× 137 0.4× 166 0.7× 172 0.8× 43 932
Lewis R. Brown United States 11 275 0.3× 187 0.5× 83 0.3× 63 0.3× 70 0.3× 38 547
N.A. Sorkhoh Kuwait 21 922 1.0× 63 0.2× 262 0.8× 469 2.1× 118 0.6× 36 1.3k
Mahmoud Shavandi Iran 17 516 0.5× 53 0.1× 193 0.6× 223 1.0× 241 1.2× 40 989

Countries citing papers authored by Roy M. Knapp

Since Specialization
Citations

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

Fields of papers citing papers by Roy M. Knapp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roy M. Knapp. 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 Roy M. Knapp. The network helps show where Roy M. Knapp may publish in the future.

Co-authorship network of co-authors of Roy M. Knapp

This figure shows the co-authorship network connecting the top 25 collaborators of Roy M. Knapp. A scholar is included among the top collaborators of Roy M. Knapp 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 Roy M. Knapp. Roy M. Knapp 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.
2.
McInerney, Michael J., et al.. (2004). Development of Bio-surfactant Based Microbial Enhanced Oil Recovery Procedure. SPE/DOE Symposium on Improved Oil Recovery. 10 indexed citations
3.
Youssef, Noha H., et al.. (2003). Comparison of methods to detect biosurfactant production by diverse microorganisms. Journal of Microbiological Methods. 56(3). 339–347. 725 indexed citations breakdown →
4.
McInerney, Michael J., et al.. (1999). Use of Indigenous or Injected Microorganisms for Enhanced Oil Recovery. 7 indexed citations
5.
Bhupathiraju, Vishvesh K., Michael J. McInerney, & Roy M. Knapp. (1993). Pretest studies for a microbially enhanced oil recovery field pilot in a hypersaline oil reservoir. Geomicrobiology Journal. 11(1). 19–34. 24 indexed citations
6.
Tanner, Ralph S., et al.. (1992). Microbially enhanced oil recovery from unconsolidated limestone cores. Geomicrobiology Journal. 10(2). 77–86. 14 indexed citations
7.
Civan, Faruk & Roy M. Knapp. (1991). Correlation method for chemical communication of coal. AIChE Journal. 37(6). 955–957. 2 indexed citations
8.
Tanner, Ralph S., et al.. (1991). Microbially enhanced oil recovery from carbonate reservoirs. Geomicrobiology Journal. 9(4). 169–195. 27 indexed citations
9.
Civan, Faruk, et al.. (1989). Alteration of permeability by fine particle processes. Journal of Petroleum Science and Engineering. 3(1-2). 65–79. 51 indexed citations
10.
Civan, Faruk, Roy M. Knapp, Aage Fredenslund, et al.. (1988). Letters to the Editor. AIChE Journal. 34(1). 171–172. 1 indexed citations
11.
Jenneman, G. E., Michael J. McInerney, & Roy M. Knapp. (1986). Effect of Nitrate on Biogenic Sulfide Production. Applied and Environmental Microbiology. 51(6). 1205–1211. 114 indexed citations
12.
Pfiffner, Susan M., Michael J. McInerney, G. E. Jenneman, & Roy M. Knapp. (1986). Isolation of Halotolerant, Thermotolerant, Facultative Polymer-Producing Bacteria and Characterization of the Exopolymer. Applied and Environmental Microbiology. 51(6). 1224–1229. 36 indexed citations
13.
Jenneman, G. E., et al.. (1986). Effect of Sterilization by Dry Heat or Autoclaving on Bacterial Penetration through Berea Sandstone. Applied and Environmental Microbiology. 51(1). 39–43. 42 indexed citations
14.
Jenneman, G. E., Michael J. McInerney, & Roy M. Knapp. (1985). Microbial Penetration through Nutrient-Saturated Berea Sandstone. Applied and Environmental Microbiology. 50(2). 383–391. 85 indexed citations
15.
Javaheri, Mohammad Reza, G. E. Jenneman, Michael J. McInerney, & Roy M. Knapp. (1985). Anaerobic Production of a Biosurfactant by Bacillus licheniformis JF-2. Applied and Environmental Microbiology. 50(3). 698–700. 131 indexed citations
16.
Jenneman, G. E., et al.. (1984). Experimental Studies of In-Situ Microbial Enhanced Oil Recovery. Society of Petroleum Engineers Journal. 24(1). 33–37. 87 indexed citations
17.
Knapp, Roy M., et al.. (1981). Statistical Decline Curve Analysis. SPE Annual Technical Conference and Exhibition. 16 indexed citations
18.
Menouar, Habib & Roy M. Knapp. (1980). Numerical Simulation of the Imbibition Process in Fractured Reservoirs. SPE Annual Technical Conference and Exhibition. 10 indexed citations
19.
Knapp, Roy M., et al.. (1975). Development and field testing of a basin hydrology simulator. Water Resources Research. 11(6). 879–888. 3 indexed citations
20.
Knapp, Roy M., et al.. (1968). Calculation of Gas Recovery Upon Ultimate Depletion of Aquifer Storage. Journal of Petroleum Technology. 20(10). 1129–1132. 12 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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