2026 Chandra Rai: Earth Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Earth Science	39	5996	5551	2159	1917	232	9631

Overview

Chandra Rai is affiliated with the University of Oklahoma in the United States and has contributed extensively to the field of engineering, with a particular emphasis on mechanical engineering and mechanics of materials. Their research spans multiple interdisciplinary subfields, including ocean engineering, geophysics, and nuclear and high energy physics.

Their work primarily focuses on topics related to hydraulic fracturing and reservoir analysis, hydrocarbon exploration and reservoir analysis, and drilling and well engineering. Additional areas of research include seismic imaging and inversion techniques, NMR spectroscopy and applications, enhanced oil recovery techniques, and CO2 sequestration and geologic interactions.

Chandra Rai has published numerous papers in various prominent venues. Frequent publication outlets include:

Proceedings of the 8th Unconventional Resources Technology Conference
Interpretation
SPE Journal
SPE Reservoir Evaluation & Engineering
Proceedings of the 9th Unconventional Resources Technology Conference

Among their recent papers are:

"Fracture Hits in Unconventional Reservoirs: A Critical Review," 2020, SPE Journal
"Fracture toughness in shales using nano-indentation," 2020, Journal of Petroleum Science and Engineering
"Looking Ahead of the Bit Using Surface Drilling and Petrophysical Data: Machine-Learning-Based Real-Time Geosteering in Volve Field," 2020, SPE Journal
"Nuclear magnetic resonance and molecular simulation study of H2 and CH4 adsorption onto shale and sandstone for hydrogen geological storage," 2023, International Journal of Hydrogen Energy
"Impact of Surfactants on Hydrocarbon Mobility in Shales," 2020, SPE Reservoir Evaluation & Engineering

The scientist collaborates frequently with several peers, including Carl Sondergeld, Son Dang, Deepak Devegowda, Mark E. Curtis, and Ishank Gupta.

Best Publications

Development of organic porosity in the Woodford Shale with increasing thermal maturity

Mark E. Curtis;Brian J. Cardott;Carl H. Sondergeld;Chandra S. Rai

1242
Citations
Microstructural investigation of gas shales in two and three dimensions using nanometer-scale resolution imaging

Mark E. Curtis;Carl H. Sondergeld;Raymond J. Ambrose;Chandra S. Rai

920
Citations
Micro-Structural Studies of Gas Shales

Carl H. Sondergeld;Raymond Joseph Ambrose;Chandra Shekhar Rai;Jason Moncrieff

833
Citations
Petrophysical Considerations in Evaluating and Producing Shale Gas Resources

Carl H. Sondergeld;Kent Edward Newsham;Joseph Thomas Comisky;Morgan Craig Rice

765
Citations
Shale-Gas Permeability and Diffusivity Inferred by Improved Formulation of Relevant Retention and Transport Mechanisms

Faruk Civan;Chandra S. Rai;Carl H. Sondergeld

596
Citations
Petrophysical Considerations in Evaluating and Producing Shale Gas Resources

Unknown

494
Citations
Gassmann fluid substitutions: A tutorial

Tad M. Smith;Carl H. Sondergeld;Chandra S. Rai

441
Citations
NMR Study of Shale Wettability

Elijah O. Odusina;Carl H. Sondergeld;Chandra Shekhar Rai

310
Citations
Elastic anisotropy of shales

Carl H. Sondergeld;Chandra S. Rai

257
Citations
Shale Permeability Measurements on Plugs and Crushed Samples

Ali Tinni;Ebrahim Fathi;Rajiv Agarwal;Carl H. Sondergeld

226
Citations
Nano to Macro Mechanical Characterization of Shale

Vikas Kumar;Carl H. Sondergeld;Chandra Shekhar Rai

219
Citations
Transmission and Scanning Electron Microscopy Investigation of Pore Connectivity of Gas Shales on the Nanoscale

Mark Erman Curtis;Raymond Joseph Ambrose;Carl H. Sondergeld;Chandra Shekhar Rai

200
Citations
Laboratory studies of hydraulic fracturing by cyclic injection

S.M. Patel;C.H. Sondergeld;C.S. Rai

189
Citations
Investigation of the Relationship Between Organic Porosity and Thermal Maturity in The Marcellus Shale

Mark Erman Curtis;Raymond Joseph Ambrose;Carl H. Sondergeld;Chandra Shekhar Rai

180
Citations
An experimental investigation into hydraulic fracture propagation under different applied stresses in tight sands using acoustic emissions

Yashwanth Chitrala;Camilo Moreno;Carl Sondergeld;Chandra Rai

155
Citations
Determining Shale Permeability to Gas by Simultaneous Analysis of Various Pressure Tests

Faruk Civan;Chandra S. Rai;Carl H. Sondergeld

128
Citations
An NMR Study of Shale Wettability and Effective Surface Relaxivity

Ismail Dean Sulucarnain;Carl H. Sondergeld;Chandra Shekhar Rai

124
Citations
Micro-Structural Studies of Gas Shales

Unknown

115
Citations
Characterization of Barnett Shale Kerogen Pore Size Distribution using DFT Analysis and Grand Canonical Monte Carlo Simulations

Adelola Gbemisola Adesida;I. Akkutlu;Daniel E. Resasco;Chandra Shekhar Rai

110
Citations
Estimation of Elastic Properties of Organic Matter in Woodford Shale Through Nanoindentation Measurements

Vikas Kumar;Mark Erman Curtis;Nabanita Gupta;Carl H. Sondergeld

109
Citations
Nanoindentation Studies on Shales

Priyavrat Shukla;Vikas Kumar;Mark Curtis;Carl H. Sondergeld

109
Citations
Shear‐wave velocity anisotropy in sedimentary rocks: A laboratory study

Chandra S. Rai;Kenneth E. Hanson

108
Citations
Petrophysical Characterization of Barnett Shale

Sagar Vivek Kale;Chandra Shekhar Rai;Carl H. Sondergeld

90
Citations

Frequent Co-Authors

Carl H. Sondergeld University of Oklahoma

Faruk Civan University of Southern California

Kurt J. Marfurt University of Oklahoma

Murli H. Manghnani University of Hawaii at Manoa

Manika Prasad Colorado School of Mines

Gerilyn S. Soreghan University of Oklahoma

Dongxiao Zhang Southern University of Science and Technology

Daniel E. Resasco University of Oklahoma

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