Dhananjay Kumar

Education:

PhD, Geophysics, 2005		The University of Texas at Austin (Institute for Geophysics)
Dissertation:		Analysis of multicomponent seismic data from the Hydrate Ridge, offshore Oregon [pdf]
MS, Expl. Geophysics, 2000		Indian Institute of Technology Kharagpur
Dissertation:		Three-dimensional forward modeling and inversion of magnetotellurics data

Work Experience:
BP, since March 2012, Upstream Technology, Seismic Analyst, Houston
Chevron, March 2005 - March 2012
         ETC, San Ramon, RPFS-RM, Geophysicist, March 2005-Aug 2007
         ETC, San Ramon, SAPE, Research Geophysicist, Sept 2007-May 2010
         MCA, Houston, ARM, Technical Geophysicist, since June 2010
BP, May 2003 - August 2003, Geophysicist, EPTZ, Seismic Advanced Imaging, Houston
Reliance, June 2000 - August 2001, Geophysicist, Oil and Gas Division, Mumbai

Teaching Experience:
1. During Geophysical conferences:
SPG-2008, Hyderabad, India:
1) "Seismic modeling" with Subhashis Mallick and Luca Duranti, 2) "Seismic inversion" with Mrinal Sen, and 3)"Seismic inversion/net pay estimation" with Raghu Chunduru

SPG-2012, Ahmedabad, India:
"Quantitative reservoir properties prediction"

SPG-2015, Presented on 14th June 2016 at NGRI, Hyderabad, India:
"Quantitative reservoir properties prediction"

SPG-2017, Jaipur, India:
"Seismic AVO modeling & inversion"

2. SEG Courses:
"Technical communication for geophysicists (June 2020)"
"Synthetic seismograms-construction and use (Jan 2021)"    SEG Courses    SEG On Demand

3. University of california at Berkeley:
Taught one day (Nov 21, 2008) class on "Introduction to seismic exploration and time-lapse seismic: for Prof. Jamie Rector's Applied Geophysics class (CE 178), Civil & Environmental Engineering department, UC Berkeley

Promoting Professional Society:
SEG to boost professional experience (25 March 2020)    [Video]

Podcasts:
SEG podcast #118: The Secret of maximizing your professional career (18 January 2021)   Link

EarthScan podcast #E11: How to understand geophysics properly, experiences from a seasoned Geophysicist (18 August 2023)   YouTube

Awards:
Outstanding Student Award (Seismology section), AGU-2004, San Francisco
BP Upstream Technology Award, 2014, 2019

Professional Society Affiliations:
     President (2008-12), SPG North America Chapter [Now, Indo-American Society of Geophysicist, ISG]
     Memberships: SEG, GSH, AGU,
     Associate Editor (since 2021): Geophysics (SEG)
     Life time membership: Bihar Brains Development Society

Book Chapters:

Kumar, D., 2023, Seismic AVO analysis for reservoir characterization: In: Reservoir Characterization, Modeling and Quantitative Interpretation, V. P. Dimri (ed.), Elsevier.

Kumar, D., 2020, Seismic reservoir characterization: In: Encyclopedia of Solid Earth Geophysics, 2nd edition, H. Gupta (ed.), Springer.

Kumar, D., and Ahmed, I., 2011, Seismic noise: In: Encyclopedia of Solid Earth Geophysics, H. Gupta (ed.), Springer.

Journal Publications:

Biswas, R., Kumar, D., and Sen, M. K., 2022, Seismic inversion for density using a transdimensional approach: The Leading Edge, 41 (8), doi: https://doi.org/10.1190/tle41080548.1.

Sayed, A., Stewart, R. R., and Kumar, D., 2021, The effect of geologic structure on fracture characterization using azimuthal vertical seismic profiles: Geophysics, 86(1), doi: 10.1190/geo2020-0203.1.

Zhao, Z., Kumar, D.,Foster, D. J., Dralus, D., and Sen, M. K., 2021, Frequency-dependent AVO analysis: a potential seismic attribute for thin-bed identification: Geophysics, 86(4), doi: 10.1190/geo2020-0777.1.

Kumar, D., Zhao, Z., Foster, D. J., Dralus, D., and Sen, M. K., 2020, Frequency-dependent AVO anaysis using the scattering response of a layered reservoir: Geophysics, 85(2), doi: 10.1190/geo2019-0167.1.

Kumar, D., 2019, Deriving seismic AVO intercept and gradient equations: GEOS, a publication of Geology & Geophysics department, IIT Kharagpur, India, Vol. 17, 88-94. [pdf]

Kumar, D., 2018, Seismic amplitude calibration for quantitative interpretation: GEOS, a publication of Geology & Geophysics department, IIT Kharagpur, India, Vol. 16, 34-37. [pdf]

Chen, et al., 2015, Using seismic inversion and net pay to calibrate Eagle Ford Shale producible resources: Interpretation, Aug 2015, SV69-SV78.

Kumar, D., 2013, Applying Backus averaging for deriving seismic anisotropy of a long-wavelength equivalent medium from well-log data: J. Geophys. Eng., 10 055001.

Kumar, D., and Hoversten, G. M., 2012, Geophysical model response in a shale gas: Geohorizons, Vol. 17, No. 1, 31-37. [pdf]

Kumar, D., Dash, R., and Dewangan, P., 2009, Methods of gas hydrate concentration estimation with field examples: Geohorizons, 76-86. [pdf]

Thompson, et al., 2009, Distinguishing gas sand from shale/brine sand using elastic impedance data and the determination of the lateral extent of channel reservoirs using amplitude data for a channelized deepwater gas field in Indonesia: The Leading Edge, Vol. 28, 312-317.

Kumar, D., Sen, M. K., and Bangs, N. L., 2007, Gas hydrate concentration and characteristics within Hydrate Ridge inferred from multicomponent seismic reflection data: J. Geophys. Res., 112, B12306, doi: 10.1029/2007JB004993.

Kumar, D., Sen, M. K., and Bangs, N. L., 2006, Seismic characteristics of gas hydrates at Hydrate Ridge, offshore Oregon: The Leading Edge, Vol. 25, 610-614.

Kumar, D., Sen, M. K., Bangs, N. L., Wang, C., and Pecher, I., 2006, Seismic anisotropy at Hydrate Ridge: Geophys. Res. Lett., 33, L01306, doi:10.1029/2005GL023945.

Kumar, D., 2006, A tutorial on Gassmann Fluid Substitution: Formulation, Algorithm and Matlab code: Geohorizons, 11, 4-12. [pdf]

Kumar, D., Bastia, R., and Guha, D., 2004, Prospect hunting beow Deccan basalt: imaging challenges and solutions: First Break, 22, 35-39.

Kumar, D., Sen, M. K., and Ferguson, R. J., 2004, Traveltime calculation and prestack depth migration in tilted transversely isotropic media: Geophysics, 69, 37-44 doi: 10.1190/1.1649373.

Abstracts / Presentations

Research Collaborations

Resume

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