World's Best Scientists 2026 revealed!
Rukai Zhu

Rukai Zhu

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D-Index & Metrics

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Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 46 4161 3820 270 264 158 9310

Rukai Zhu publications per year

The chart shows the history of publications by Rukai Zhu between 2002 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Rukai Zhu published across 24 years, from 2002 to 2025, averaging 7 papers a year. Output peaked at 16 publications in 2015. 26 of the 167 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 2002 to 2025. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2015. 2002: 1 publication 2003: 0 publications 2004: 1 publication 2005: 0 publications 2006: 0 publications 2007: 4 publications 2008: 6 publications 2009: 6 publications 2010: 3 publications 2011: 5 publications 2012: 6 publications 2013: 8 publications 2014: 7 publications 2015: 16 publications 2016: 9 publications 2017: 1 publication 2018: 8 publications 2019: 15 publications 2020: 11 publications 2021: 8 publications 2022: 11 publications 2023: 15 publications 2024: 15 publications 2025: 11 publications
2002 2025

167 publications in total across all disciplines

View publications per year as a table
Rukai Zhu: publications per year, 2002 to 2025
Year Publications
2002 1
2003 0
2004 1
2005 0
2006 0
2007 4
2008 6
2009 6
2010 3
2011 5
2012 6
2013 8
2014 7
2015 16
2016 9
2017 1
2018 8
2019 15
2020 11
2021 8
2022 11
2023 15
2024 15
2025 11
Total 167
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Rukai Zhu publications per year - data summary

  • Rukai Zhu, a Earth Science scholar from Research Institute of Petroleum Exploration and Development, has 167 publications recorded across 24 years, from 2002 to 2025.
  • The oldest publication on record dates to 2002 and the most recent to 2025.
  • The most productive year is 2015, with 16 publications.
  • The least productive years with any output are 2002, 2004 and 2017, with 1 publication each.
  • 3 of the 24 years in the span carry no publications at all (2003, 2005 and 2006).
  • The rate of publication averages 7.0 papers per year over the whole span, or 8.0 per year counting only the 21 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 60 publications, 36% of the career total.
  • Split into equal eras - 2002-2009: 18 publications (2.3 per year); 2010-2017: 55 publications (6.9 per year); 2018-2025: 94 publications (11.8 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Rukai Zhu publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Rukai Zhu sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 158–167 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 158 publications — 43rd percentile

43% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458 158
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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Rukai Zhu publication distribution in Earth Science in 2026 - data summary

  • The chart plots the publication count of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 58 ranges running from 38–47 to 603+ publications.
  • Rukai Zhu, a Earth Science scholar from Research Institute of Petroleum Exploration and Development, records 158 publications - the 43rd percentile of the discipline.
  • 43% of ranked Earth Science scientists score the same or lower than Rukai Zhu, and about 57% score higher.
  • The median of the discipline falls in the 168–177 publications range, and Rukai Zhu ranks below the median.
  • The most crowded range is 128–137 publications, holding 557 scientists (6% of the field).
  • 58% of the field sits in the lowest quarter of the value range (up to 178–187 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 603 publications or more, 100 scientists in all (1% of the field).

Rukai Zhu D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Rukai Zhu sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 46 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 46 D-Index — 55th percentile

55% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212 46
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
Download as CSV

Rukai Zhu D-index placement in Earth Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 77 ranges running from 30 to 106+ D-Index.
  • Rukai Zhu, a Earth Science scholar from Research Institute of Petroleum Exploration and Development, records 46 D-Index - the 55th percentile of the discipline.
  • 55% of ranked Earth Science scientists score the same or lower than Rukai Zhu, and about 45% score higher.
  • The median of the discipline falls in the 44 D-Index range, and Rukai Zhu ranks above the median.
  • The most crowded range is 36 D-Index, holding 389 scientists (4% of the field).
  • 62% of the field sits in the lowest quarter of the value range (up to 49 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 106 D-Index or more, 98 scientists in all (1% of the field).

Overview

Rukai Zhu is affiliated with the Research Institute of Petroleum Exploration and Development in China. Their research primarily focuses on areas related to hydrocarbon exploration, reservoir analysis, and geological studies with a particular emphasis on shale oil formations.

Their body of work includes publications in notable journals such as Petroleum Exploration and Development, Journal of Earth Science, SSRN Electronic Journal, Petroleum Science, and Frontiers in Earth Science. These venues have featured multiple contributions from Zhu, reflecting an active engagement in earth and planetary sciences and engineering disciplines.

Key research topics covered by Zhu include:

  • Hydrocarbon exploration and reservoir analysis
  • Geological studies and exploration
  • Hydraulic fracturing and reservoir analysis
  • NMR spectroscopy and applications
  • Geochemistry and geologic mapping
  • Paleontology and stratigraphy of fossils
  • Methane hydrates and related phenomena

Their work spans several subfields, particularly the mechanics of materials, geology, mechanical engineering, paleontology, and nuclear and high-energy physics. This multidisciplinary approach contributes to a broader understanding of shale oil reservoirs and related geological phenomena.

Frequent collaborators in Zhu's research include Songtao Wu, Zhijun Jin, Jingwei Cui, Jingya Zhang, and Kelai Xi, with whom Zhu has co-authored multiple papers.

Recent significant publications illustrate Zhu's focus areas:

  • "Development potential and technical strategy of continental shale oil in China" (2020), published in Petroleum Exploration and Development
  • "Several issues worthy of attention in current lacustrine shale oil exploration and development" (2021), published in Petroleum Exploration and Development
  • "An analysis of major scientific problems and research paths of Gulong shale oil in Daqing Oilfield, NE China" (2021), published in Petroleum Exploration and Development
  • "Accumulation contribution differences between lacustrine organic-rich shales and mudstones and their significance in shale oil evaluation" (2020), published in Petroleum Exploration and Development
  • "Laminae combination and shale oil enrichment patterns of Chang 73 sub-member organic-rich shales in the Triassic Yanchang Formation, Ordos Basin, NW China" (2020), published in Petroleum Exploration and Development

These publications contribute to specialized knowledge in shale oil extraction and characterization, focusing on continental and lacustrine shale formations, as well as technical strategies for resource development.

Zhu's expertise spans engineering and earth sciences, integrating geological and mechanical engineering principles to address challenges in petroleum exploration and reservoir management. Their work also explores geochemical and paleontological aspects of fossil stratigraphy related to hydrocarbon resources.

Best Publications

  • Formation mechanism, geological characteristics and development strategy of nonmarine shale oil in China

    Caineng Zou;Zhi Yang;Jingwei Cui;Rukai Zhu

  • Tight gas sandstone reservoirs in China: characteristics and recognition criteria

    Caineng Zou;Rukai Zhu;Keyu Liu;Keyu Liu;Ling Su

  • Organic-matter-rich shales of China

    Caineng Zou;Rukai Zhu;Zhong-Qiang Chen;James G. Ogg;James G. Ogg;James G. Ogg

  • Concepts, characteristics, potential and technology of unconventional hydrocarbons: On unconventional petroleum geology

    Caineng Zou;Guosheng Zhang;Zhi Yang;Shizhen Tao

  • Development characteristics and orientation of tight oil and gas in China

    Longde Sun;Caineng Zou;Ailin Jia;Yunsheng Wei

  • How does the pore-throat size control the reservoir quality and oiliness of tight sandstones? The case of the Lower Cretaceous Quantou Formation in the southern Songliao Basin, China

    Kelai Xi;Kelai Xi;Yingchang Cao;Beyene Girma Haile;Rukai Zhu

  • Conventional and unconventional petroleum “orderly accumulation”: Concept and practical significance

    Caineng Zou;Zhi Yang;Guosheng Zhang;Lianhua Hou

  • Multi-scale method of Nano(Micro)-CT study on microscopic pore structure of tight sandstone of Yanchang Formation, Ordos Basin

    Bin Bai;Rukai Zhu;Songtao Wu;Wenjing Yang

  • Formation, distribution and potential of deep hydrocarbon resources in China

    Longde Sun;Caineng Zou;Rukai Zhu;Yunhui Zhang

  • Nano-hydrocarbon and the accumulation in coexisting source and reservoir

    Caineng Zou;Zhi Yang;Shizhen Tao;Wei Li

  • Progress in China's Unconventional Oil & Gas Exploration and Development and Theoretical Technologies

    Unknown

  • Genesis, classification, and evaluation method of diagenetic facies

    Cai-neng Zou;Shi-zhen Tao;Hui Zhou;Xiang-xiang Zhang

  • Geological features, major discoveries and unconventional petroleum geology in the global petroleum exploration

    Unknown

  • Formation and distribution of volcanic hydrocarbon reservoirs in sedimentary basins of China

    Cai-neng Zou;Wen-zhi Zhao;Cheng-zao Jia;Ru-kai Zhu

  • Diagenesis and reservoir quality of the Lower Cretaceous Quantou Formation tight sandstones in the southern Songliao Basin, China

    Kelai Xi;Kelai Xi;Yingchang Cao;Jens Jahren;Rukai Zhu

  • Exploration and development of continental tight oil in China

    Unknown

  • Characteristics of lacustrine shale porosity evolution, Triassic Chang 7 Member, Ordos Basin, NW China

    Unknown

  • Diagenesis of tight sandstone reservoirs in the Upper Triassic Yanchang Formation, southwestern Ordos Basin, China

    Kelai Xi;Yingchang Cao;Keyu Liu;Songtao Wu

  • Guidelines for seismic sedimentologic study in non-marine postrift basins

    Hongliu Zeng;Xiaomin Zhu;Rukai Zhu;Qingshi Zhang

  • Significant progress of continental petroleum geological theory in basins of Central and Western China

    Chengzao Jia;Caineng Zou;Zhi Yang;Rukai Zhu

  • Quartz cement and its origin in tight sandstone reservoirs of the Cretaceous Quantou formation in the southern Songliao basin, China

    Kelai Xi;Kelai Xi;Yingchang Cao;Jens Jahren;Rukai Zhu

  • Diagenetic fluids evolution and genetic mechanism of tight sandstone gas reservoirs in Upper Triassic Xujiahe Formation in Sichuan Basin, China

    RuKai Zhu;CaiNeng Zou;Nai Zhang;XueSong Wang

  • Hydrocarbon accumulation mechanism and structure of large-scale volcanic weathering crust of the Carboniferous in northern Xinjiang, China

    CaiNeng Zou;LianHua Hou;ShiZhen Tao;XuanJun Yuan

Frequent Co-Authors

Caineng Zou
Caineng Zou China National Petroleum Corporation (China)
Hongliu Zeng
Hongliu Zeng The University of Texas at Austin
Songtao Wu
Songtao Wu Research Institute of Petroleum Exploration and Development
Cheng-zao Jia
Cheng-zao Jia China University of Petroleum (East China)
Shuichang Zhang
Shuichang Zhang China National Petroleum Corporation (China)
Lin Jiang
Lin Jiang University of Liverpool
Keyu Liu
Keyu Liu China University of Petroleum, Beijing
Guangyou Zhu
Guangyou Zhu China National Petroleum Corporation (China)
Hongyan Liu
Hongyan Liu Peking University
Xizhang Wang
Xizhang Wang Nanjing University

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