C. Rai

发表

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

M. Curtis, R. Ambrose, C. Sondergeld, 2011 .

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

M. Curtis, R. Ambrose, C. Sondergeld, 2012 .

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

M. Curtis, C. Sondergeld, C. Rai, 2012 .

Impact of Different Cleaning Methods on Petrophysical Measurements

C. Sondergeld, C. Rai, Ishank Gupta, 2017 .

Shale Permeability Measurements on Plugs and Crushed Samples

Ebrahim Fathi, Carl H. Sondergeld, Chandra Rai, 2012 .

A new exploration tool: Quantitative core characterization

C. Sondergeld, C. Rai, 1993 .

Effect of Microstructure And Pore Fluid On the Elastic Properties of Carbonates

J. Gómez, C. Sondergeld, C. Rai, 2007 .

The Effect of Cementation on the Mechanical Properties of Sandstones

C. Sondergeld, C. Rai, A. Al-Tahini, 2006 .

Elastic anisotropy of shales

C. Sondergeld, C. Rai, 2011 .

Relative permeability estimates for Wolfcamp and Eagle Ford shale samples from oil, gas and condensate windows using adsorption-desorption measurements

Siddharth Misra, Carl H. Sondergeld, Chandra Rai, 2017 .

Visualization of hydraulic fracture using physics-informed clustering to process ultrasonic shear waves

C. Rai, S. Misra, A. Chakravarty, 2021 .

Ultrasonic attenuation in Glenn Pool rocks, northeastern Oklahoma

C. Sondergeld, C. Rai, A. Shatilo, 1998 .

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

C. Rai, K. E. Hanson, 1988 .

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

Faruk Civan, Carl H. Sondergeld, Chandra Rai, 2012 .

Petrophysical interpretation of laboratory pressure-step-decay measurements on ultra-tight rock samples. Part 2 – In the presence of gas slippage, transitional flow, and diffusion mechanisms

C. Sondergeld, C. Rai, Younas Dadmohammadi, 2017 .

STUDY OF DRILL CUTTINGS POROSITY FOR FORMATION EVALUATION

C. Sondergeld, C. Rai, Mewbourne, 2017 .

Pressure and Temperature Dependence of the Elastic Moduli of Polycrystalline MgF2

C. Rai, M. Manghnani, 1976 .

Estimation Of Uncertainty In Microseismic Event Location Associated With Hydraulic Fracturing

C. Sondergeld, C. Rai, Andrés Castaño, 2010, TGC 2010.

Effect of mineralogy and organic matter on mechanical properties of shale

C. Sondergeld, C. Rai, Vikas Kumar, 2015 .

Rock Typing in Gas Shales

C. Sondergeld, C. Rai, S. Kale, 2010 .

Looking Ahead of the Bit Using Surface Drilling and Petrophysical Data: Machine-Learning-Based Real-Time Geosteering in Volve Field

Vikram Jayaram, Ngoc Tran, Deepak Devegowda, 2020 .

Observations of Tensile Fracturing of Anisotropic Rocks

C. Sondergeld, C. Rai, S. Mighani, 2016 .

Effects of gas pressurization on the interpretation of NMR hydrocarbon measurements in organic rich shales

C. Sondergeld, C. Rai, S. Dang, 2020, E3S Web of Conferences.

Relative Permeability and Residual Saturation Estimates for Organic-Rich Shale Samples From Bakken, Wolfcamp, Eagle Ford and Woodford Formations

C. Sondergeld, C. Rai, A. Tinni, 2017 .

Applications of NanoIndentation for Reservoir Characterization in Shales

C. Sondergeld, C. Rai, Ishank Gupta, 2018 .

Nanoindentation Studies on Shales

M. Curtis, C. Sondergeld, C. Rai, 2013 .

Hydraulic fracture visualization by processing ultrasonic transmission waveforms using unsupervised learning Α

C. Rai, S. Misra, A. Chakravarty, 2020 .

Gassmann fluid substitutions: A tutorial

C. Sondergeld, C. Rai, Tad M. Smith, 2003 .

Elastic Properties of Selected Ophiolitic Rocks from Papua New Guinea: Nature and Composition of Oceanic Lower Crust and Upper Mantle

C. Rai, P. Fryer, M. Manghnani, 2013 .

Relationship Between Organic Shale Microstructure and Hydrocarbon Generation

M. Curtis, C. Sondergeld, C. Rai, 2013 .

Micro-Structural Studies of Gas Shales

Carl H. Sondergeld, Chandra Rai, J. Moncrieff, 2010 .

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

Faruk Civan, Carl H. Sondergeld, Chandra Rai, 2011 .

Relative Permeability and Production-Performance Estimations for Bakken, Wolfcamp, Eagle Ford, and Woodford Shale Formations

C. Sondergeld, C. Rai, A. Tinni, 2018 .

an interferometric technique for measuring velocity and attenuation in molten rocks

Murli H. Manghnani, C. Rai, K. Katahara, 1981 .

Rock typing in the Upper Devonian-Lower Mississippian Woodford Shale Formation, Oklahoma, USA

D. Devegowda, C. Sondergeld, C. Rai, 2018 .

Experimental Proppant Conductivity Observations: Evaluating Impact of Proppant Size and Fluid Chemistry on Long-Term Production in Shales

C. Sondergeld, C. Rai, Abhinav Mittal, 2018, Day 3 Wed, September 26, 2018.

Study of Kerogen Maturity using Fourier Transform Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TGA)

C. Sondergeld, C. Rai, S. Dang, 2015 .

Study impact of sample treatment and insitu fluids on shale wettability measurement using NMR

C. Sondergeld, C. Rai, Ishank Gupta, 2019, Journal of Petroleum Science and Engineering.

Nano to Macro Mechanical Characterization of Shale

Carl H. Sondergeld, Chandra Rai, C. Sondergeld, 2012 .

Petrophysical Considerations in Evaluating and Producing Shale Gas Resources

Carl H. Sondergeld, Kent Edward Newsham, Chandra Rai, 2010 .

NMR Response of Brine, Oil and Methane in Organic Rich Shales

Carl H. Sondergeld, Elijah Odusina, Chandra Rai, 2014 .

Temperature dependence of CO2 solubility in high pressure quenched glasses of diopside composition

D. Matson, Shiv k. Sharma, C. Rai, 1983 .

NMR Study of Shale Wettability

Carl H. Sondergeld, Elijah Odusina, Chandra Rai, 2011 .

Measurement of Oil-Gas Diffusivity at Reservoir Conditions for Huff-n-Puff EOR in Shales

C. Sondergeld, C. Rai, S. Mukherjee, 2020 .

Novel technique to measure mutual bulk fluid diffusion using NMR 1-D gradient

C. Sondergeld, C. Rai, S. Dang, 2020, E3S Web of Conferences.

An NMR Study of Shale Wettability and Effective Surface Relaxivity

C. Sondergeld, C. Rai, Ismail Sulucarnain, 2012 .

NMR Response of Two Clastic Reservoirs: Influence of Depositional Environment

C. Sondergeld, C. Rai, R. Dastidar, 2006 .

Nuclear-Magnetic-Resonance Response of Brine, Oil, and Methane in Organic-Rich Shales

C. Sondergeld, C. Rai, A. Tinni, 2015 .

Proppant-Conductivity Testing Under Simulated Reservoir Conditions: Impact of Crushing, Embedment, and Diagenesis on Long-Term Production in Shales

C. Sondergeld, C. Rai, Abhinav Mittal, 2018, SPE Journal.

Determination of Pore Fluid Salinity in Tight Rocks Without Fluid Extraction

C. Sondergeld, C. Rai, A. Tinni, 2021, Proceedings of the 9th Unconventional Resources Technology Conference.

Evaluation of Huff-n-Puff in Shale Using Experiments and Molecular Simulation

D. Devegowda, C. Sondergeld, C. Rai, 2020 .

Petrophysical interpretation of laboratory pressure-step-decay measurements on ultra-tight rock samples. Part 1 – In the presence of only gas slippage

Siddharth Misra, Carl H. Sondergeld, Younas Dadmohammadi, 2017 .

Simultaneous Estimation of Intrinsic Permeability, Effective Porosity, PoreVolume Compressibility, and Klinkenberg-Slip Factor of Ultra-Tight Rock Samples Based on Laboratory Pressure-Step-Decay Method

C. Sondergeld, C. Rai, Younas Dadmohammadi, 2016 .

Petrophysical Characterization of the Woodford Shale

C. Sondergeld, C. Rai, Nabanita Gupta, 2013 .

Coherent Interpretation of Wideband Electromagnetic Water-Wet or Oil-Wet: is it Really That Simple in Shales?

M. Curtis, C. Sondergeld, C. Rai, 2018 .

Effects of Temperature and Gas Pressurization on the Interpretation of NMR Hydrocarbon Measurements in Organic-Rich Shale

C. Sondergeld, C. Rai, S. Dang, 2019, Proceedings of the 7th Unconventional Resources Technology Conference.

Using dry pyrolysis to understand crude oil production characteristics and calculate tortuosity in unconventional shales

C. Sondergeld, C. Rai, Ishank Gupta, 2020 .

Investigation of high frequency 1D NMR to characterize reservoir rocks

C. Sondergeld, C. Rai, Byeungju Min, 2019, Journal of Petroleum Science and Engineering.

Chemically Induced Formation Damage in Shale

C. Sondergeld, C. Rai, Ishank Gupta, 2020 .

Impact of Surfactants on Hydrocarbon Mobility in Shales

C. Sondergeld, C. Rai, Ishank Gupta, 2020 .

Water Weakening: A Laboratory Study of Marcellus, Woodford, Eagle Ford, and Wolfcamp Shales

C. Sondergeld, C. Rai, R. Hofmann, 2019, SPE Reservoir Evaluation & Engineering.

Application of Laboratory and Field NMR to Characterize the Tuscaloosa Marine Shale

C. Sondergeld, C. Rai, A. Tinni, 2017 .

Investigation of The Microstructure of Shales in The Oil Window

M. Curtis, C. Sondergeld, C. Rai, 2013 .

Fracture toughness in shales using nano-indentation

C. Sondergeld, C. Rai, Ishank Gupta, 2020 .

Nanoindentation Measurements on Rocks

C. Sondergeld, C. Rai, P. Shukla, 2015 .

Use of Data Analytics to Optimize Hydraulic Fracture Locations Along Borehole

D. Devegowda, C. Sondergeld, C. Rai, 2018 .

Water Weakening: Case Study From Marcellus and Woodford

C. Sondergeld, C. Rai, R. Hofmann, 2017 .

Laboratory studies of hydraulic fracturing by cyclic injection

C. Sondergeld, C. Rai, Swetal Patel, 2017 .

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

M. Curtis, C. Sondergeld, C. Rai, 2012 .

A new concept in quantitative core characterization

C. Sondergeld, C. Rai, 1993 .

The effects of saturant salinity and pressure on the electrical resistivity of Hawaiian basalts

C. Rai, M. Manghnani, 1981 .

Ultrasonic Measurement of Anisotropy On the Kimmeridge Shale

C. Sondergeld, C. Rai, Richard W. Whidden, 2000 .

Application of deep learning to shale microstructure classification

D. Devegowda, M. Curtis, C. Sondergeld, 2022, Marine and Petroleum Geology.

A New Approach to Measuring Organic Density

C. Sondergeld, C. Rai, S. Dang, 2016 .

Ultrasonic Velocity and Attenuation in Basalt Melt

C. Rai, G. Olhoeft, K. Katahara, 2013 .

Ultrasonic velocity and attenuation measurements on basalt melts to 1500°C: Role of composition and structure in the viscoelastic properties

C. Rai, Hiroki Sato, M. Manghnani, 1986 .

Ultrasonic studies on a basalt melt

Murli H. Manghnani, C. Rai, K. Katahara, 1981 .

An Improved Empirical Permeability Estimator From Mercury Injection For Tight Clastic Rocks

C. Sondergeld, C. Rai, R. Dastidar, 2007 .

Velocity and resistivity changes during freeze-thaw cycles in Berea sandstone

C. Sondergeld, C. Rai, 2007 .

Petrophysical Characterization of Barnett Shale

Carl H. Sondergeld, Chandra Rai, C. Sondergeld, 2010 .

Experimental study of rock strength anisotropy and elastic modulus anisotropy

C. Sondergeld, C. Rai, Qinglu Cheng, 2013 .

Changes in crack aspect-ratio concentration from heat treatment: A comparison between velocity inversion and experimental data

C. Sondergeld, C. Rai, D. T. Tran, 2008 .

Effect of cementation on ultrasonic velocities in sandstones

Carl H. Sondergeld, Chandra Rai, C. Sondergeld, 2007 .

Pressure dependence of elastic wave velocities in sandstones.

C. Sondergeld, C. Rai, R. Singh, 2006 .

Velocity inversion for changes in crack aspect ratio spectra during heat treatment of Berea sandstone

C. Sondergeld, C. Rai, D. T. Tran, 2006 .

Experimental investigation of in situ and injection fluid effect on hydraulic fracture mechanism using acoustic emission in Tennessee sandstone

C. Sondergeld, C. Rai, Akash Damani, 2018, Journal of Petroleum Science and Engineering.

Fracture Hits in Unconventional Reservoirs: A Critical Review

D. Devegowda, C. Sondergeld, C. Rai, 2020 .

A Comparative Study of Monotonic and Cyclic Injection Hydraulic Fracturing in Saturated Tight Rocks Under Triaxial Stress

M. Curtis, C. Sondergeld, C. Rai, 2020 .

Estimation of Pore-Network Characteristics and Irreducible Saturations in Wolfcamp and Eagle Ford Shales Using Low-Pressure-Nitrogen-Adsorption/Desorption-Isotherm Measurements

C. Sondergeld, C. Rai, A. Tinni, 2017 .

Comparison of Steady-State and Transient Methods for Measuring Shale Permeability

C. Sondergeld, C. Rai, A. Mathur, 2016 .

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

M. Curtis, R. Ambrose, C. Sondergeld, 2011 .

Unsupervised clustering methods for noninvasive characterization of fracture-induced geomechanical alterations

C. Rai, S. Misra, Aditya Chakravarty, 2020 .

Experimental Investigation of Propped Fracture Conductivity and Proppant Diagenesis

C. Sondergeld, C. Rai, A. Gupta, 2019, Proceedings of the 7th Unconventional Resources Technology Conference.

New Perspectives on the Effects of Gas Adsorption on Storage and Production of Natural Gas From Shale Formations

C. Sondergeld, C. Rai, A. Tinni, 2018 .

Pore Connectivity Between Different Wettability Systems in Organic-Rich Shales

C. Sondergeld, C. Rai, A. Tinni, 2017 .

Hydraulic fracture permeability estimation using stimulation pressure data

C. Sondergeld, C. Rai, Swetal Patel, 2018 .

Rock Typing in Eagle Ford, Barnett, and Woodford Formations

D. Devegowda, C. Sondergeld, C. Rai, 2017 .

Rock Typing in Wolfcamp Formation

D. Devegowda, C. Sondergeld, C. Rai, 2017 .

Machine Learning Regressors and their Metrics to predict Synthetic Sonic and Brittle Zones

Vikram Jayaram, Deepak Devegowda, Ishank Gupta, 2019, Proceedings of the 7th Unconventional Resources Technology Conference.

Haynesville Shale: Predicting Long-Term Production and Residual Analysis to Identify Well Intereference and Frac Hits

D. Devegowda, C. Sondergeld, C. Rai, 2019, Day 1 Tue, April 09, 2019.

A Data-Driven Approach to Detect and Quantify the Impact of Frac-Hits on Parent and Child Wells in Unconventional Formations

D. Devegowda, C. Sondergeld, C. Rai, 2020 .

Variable Exponential Decline: Modified Arps To Characterize Unconventional-Shale Production Performance

D. Devegowda, C. Sondergeld, C. Rai, 2018, SPE Reservoir Evaluation & Engineering.

Machine learning regressors and their metrics to predict synthetic sonic and mechanical properties

Deepak Devegowda, Ishank Gupta, Chandra Rai, 2019, Interpretation.

Application of Interpretable Machine-Learning Workflows To Identify Brittle, Fracturable, and Producible Rock in Horizontal Wells Using Surface Drilling Data

D. Devegowda, C. Sondergeld, C. Rai, 2020, SPE Reservoir Evaluation & Engineering.

Pore connectivity and pore size distribution estimates for Wolfcamp and Eagle Ford shale samples from oil, gas and condensate windows using adsorption-desorption measurements

C. Sondergeld, C. Rai, A. Tinni, 2017 .

Experimental Investigation of Proppant Diagenesis

Sayantani Ghosh, C. Sondergeld, C. Rai, 2014 .

Laboratory Observations of Shear Wave Propagation In Anisotropic Media

C. Sondergeld, C. Rai, 1987 .

Nanoindentation Creep Measurements on Shale

C. Sondergeld, C. Rai, S. Mighani, 2015 .

Electrical conductivity of a spinel lherzolite and a garnet peridotite to 1550°C: relevance to the effects of partial melting

C. Rai, M. Manghnani, 1978 .

Electrical conductivity of basic and ultrabasic rocks as function of temperature to 1500/sup 0/C

C. Rai, M. Manghnani, 1976 .

Quantifying Uncertainties In AVO Forward Modeling

C. Sondergeld, C. Rai, A. Dey, 1999 .

Understanding Source Rock Maturation from Generation and Microstructure Viewpoints

C. Sondergeld, C. Rai, S. Dang, 2016 .