2026 Rajagopal Raghavan: Earth Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Engineering and Technology	47	4761	4583	1364	1259	228	10952
Earth Science	47	3938	3611	1540	1365	194	10646

Research.com Recognitions

2004 - Member of the National Academy of Engineering For pioneering contributions to the interpretation of pressure data in wells to improve the definition, engineering, and production of complex oil and gas reservoirs.

Overview

Rajagopal Raghavan is affiliated with Phillips 66 in the United States. Their research focuses on various aspects of engineering, mathematics, and environmental science.

The main fields of study for their work include:

Engineering
Mathematics
Environmental Science

Within these fields, key subfields of study encompass:

Environmental Engineering
Modeling and Simulation
Mechanical Engineering
Applied Mathematics
Biomedical Engineering

The principal topics addressed in their research are:

Groundwater flow and contamination studies
Fractional Differential Equations Solutions
Hydraulic Fracturing and Reservoir Analysis
Nonlinear Differential Equations Analysis
Nanofluid Flow and Heat Transfer
Dam Engineering and Safety
Seismic Imaging and Inversion Techniques

Rajagopal Raghavan has a publication record that includes the following papers:

"A study in fractional diffusion: Fractured rocks produced through horizontal wells with multiple, hydraulic fractures," 2020, published in Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles
"Space-time fractional diffusion: transient flow to a line source," 2021, published in Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles
"An application of a multiindex, time-fractional differential equation to evaluate heterogeneous, fractured rocks," 2023, published in Science and Technology for Energy Transition
"Subdiffusive flow in a composite medium with a communicating (absorbing) interface," 2020, published in Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles
"Addressing nonlinear transient diffusion in porous media through transformations," 2021, published in Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles

The frequent coauthors collaborating with Rajagopal Raghavan include:

Chih Cheng Chen
Chih Chen
Chih-Cheng Chen
Lara Carvalho
Jawad Abdulla

Publications have appeared regularly in the following venues:

Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles
Science and Technology for Energy Transition
Otology & Neurotology

In 2004, Rajagopal Raghavan was recognized as a Member of the National Academy of Engineering for contributions specifically related to the interpretation of pressure data in wells aimed at improving the engineering and production of complex oil and gas reservoirs.

Best Publications

Unsteady-State Pressure Distributions Created by a Well With a Single Infinite-Conductivity Vertical Fracture

Alain C. Gringarten;Henry J. Ramey;R. Raghavan

969
Citations
Practical Solutions for Pressure-Transient Responses of Fractured Horizontal Wells in Unconventional Shale Reservoirs

Margaret Brown;Erdal Ozkan;Rajagopal Raghavan;Hossein Kazemi

768
Citations
Horizontal-well pressure analysis

E. Ozkan;Rajagopal Raghavan;S. D. Joshi

564
Citations
New solutions for well-test analysis problems. Part 1; Analytical considerations

Erdal Ozkan;Rajagopal Raghavan

456
Citations
Comparison of Fractured-Horizontal-Well Performance in Tight Sand and Shale Reservoirs

Erdal Ozkan;Margaret L. Brown;Rajagopal Raghavan;Hossein Kazemi

450
Citations
Well test analysis

R. Raghavan

363
Citations
Modeling of Fluid Transfer From Shale Matrix to Fracture Network

Erdal Ozkan;Rajagopal S. Raghavan;Osman Gonul Apaydin

335
Citations
Fully Coupled Geomechanics and Fluid-Flow Analysis of Wells With Stress-Dependent Permeability

L.Y. Chin;Rajagopal Raghavan;L.K. Thomas

328
Citations
Productivity Changes in Reservoirs With Stress-Dependent Permeability

R. Raghavan;L.Y. Chin

323
Citations
An Analysis of Horizontal Wells Intercepted by Multiple Fractures

Rajagopal S. Raghavan;Chih-Cheng Chen;Bijan Agarwal

321
Citations
Applied Pressure Analysis for Fractured Wells

A.C. Gringarten;H.J. Ramey;R. Raghavan

287
Citations
Horizontal-well pressure analysis

E. Ozkan;Rajagopal Raghavan;S. D. Joshi

277
Citations
Comparison of Fractured Horizontal-Well Performance in Conventional and Unconventional Reservoirs

Erdal Ozkan;Margaret L. Brown;Rajagopal S. Raghavan;Hossein Kazemi

272
Citations
Practical Solutions for Pressure Transient Responses of Fractured Horizontal Wells in Unconventional Reservoirs

Margaret L. Brown;Erdal Ozkan;Rajagopal S. Raghavan;Hossein Kazemi

257
Citations
New pressure transient analysis methods for naturally fractured reservoirs

K. Serra;A.C. Reynolds;R. Raghavan

209
Citations
New Solutions for Well-Test-Analysis Problems: Part 2 Computational Considerations and Applications

Erdal Ozkan;Rajagopal Raghavan

203
Citations
A multiply-fractured horizontal well in a rectangular drainage region

C. C. Chen;R. Raghavan

177
Citations
Interpretation of flowing well response in gas-condensate wells

J.R. Jones;R. Raghavan

161
Citations
Well Test Analysis: Wells Producing by Solution Gas Drive

R. Raghavan

156
Citations
Effect of Conductivity on Horizontal Well Pressure Behavior

Erdal Ozkan;Cem Sarica;Mustafa Haciislamoglu;Rajagopal Raghavan

155
Citations
Fractional derivatives: Application to transient flow

R. Raghavan

130
Citations

Frequent Co-Authors

Erdal Ozkan Colorado School of Mines

Albert C. Reynolds University of Tulsa

Hossein Kazemi Colorado School of Mines

Cem Sarica University of Tulsa

James P. Brill University of Tulsa

External Links

Personal website of Rajagopal Raghavan

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