All Stories

  1. Seismic AVO inversion to estimate saturation-pore pressure changes during CO2 injection

    Article • January 2024, EAGE Publications

    Nisar Ahmed (PhD)

  2. Seismic inersion for time-lapse CO2 storage monitoring

    Article • Geophysics, December 2023, Society of Exploration Geophysicists

    Nisar Ahmed (PhD), Dario Grana

  3. Architectural complexities and morphological variations of the indus fan and its elements: Understanding of the turbidite system through seismic characterization

    Article • Marine and Petroleum Geology, April 2023, Elsevier

    Nisar Ahmed (PhD)

  4. Frequency-dependent AVO inversion applied to physically based models for seismic attenuation

    Article • Geophysical Journal International, November 2022, Oxford University Press (OUP)

    Nisar Ahmed (PhD)

  5. Constrained non-linear AVO inversion based on the adjoint-state optimization

    Article • Computers & Geosciences, November 2022, Elsevier

    Nisar Ahmed (PhD)

  6. Adjoint-state Method Based Strategy for Non-linear Seismic AVO Inversion

    Article • March 2022, Copernicus GmbH

    Nisar Ahmed (PhD)

  7. AVA-anisotropy: spreadsheets program to model the variation of P-wave reflectivity with angle in VTI, HTI, and orthorhombic media

    Article • Arabian Journal of Geosciences, May 2021, Springer Science + Business Media

    Nisar Ahmed (PhD)

  8. Assessment of Reservoir Rock Properties from Rock Physics Modeling and Petrophysical Analysis of Borehole Logging Data to Lessen Uncertainty in Formation Characterization in Ratana Gas Field, Northern Potwar, Pakistan

    Article • Journal of the Geological Society of India, June 2018, Springer Science + Business Media

    Nisar Ahmed (PhD)

  9. Application of Extended Elastic Impedance and Best Chi-angle Prediction for Litho-Fluids Projections

    Article • April 2018, EAGE Publications

    Nisar Ahmed (PhD)

  10. Estimation of reservoir properties from well logs and core plugs to reduce uncertainty in formation evaluation: a case study from the Kohat-Potwar Geologic Province

    Article • Episodes, March 2018, International Union of Geological Sciences

    Nisar Ahmed (PhD)

  11. Reservoir Geomechanics Parameters Estimation Using Well Logs and Seismic Reflection Data: Insight from Sinjhoro Field, Lower Indus Basin, Pakistan

    Article • Arabian Journal for Science and Engineering, December 2017, Springer Science + Business Media

    Nisar Ahmed (PhD)

  12. DHI evaluation by combining rock physics simulation and statistical techniques for fluid identification of Cambrian-to-Cretaceous clastic reservoirs in Pakistan

    Article • Acta Geophysica, August 2017, Springer Science + Business Media

    Nisar Ahmed (PhD)

  13. Reservoir characterization of basal sand zone of lower Goru Formation by petrophysical studies of geophysical logs

    Article • Journal of the Geological Society of India, March 2017, Springer Science + Business Media

    Nisar Ahmed (PhD)

  14. Erratum to: An application of rock physics modeling to quantify the seismic response of gas hydrate-bearing sediments in Makran accretionary prism, offshore, Pakistan

    Article • Geosciences Journal, November 2016, Springer Science + Business Media

    Nisar Ahmed (PhD)

  15. Erratum to: An application of AVO derived attributes to analyze seismic anomalies of gas hydrate bearing sediments in Makran offshore, Pakistan

    Article • Acta Geodaetica et Geophysica, July 2016, Springer Science + Business Media

    Nisar Ahmed (PhD)

  16. Improving Petrophysical Analysis and Rock Physics Parameters Estimation Through Statistical Analysis of Basal Sands, Lower Indus Basin, Pakistan

    Article • Arabian Journal for Science and Engineering, April 2016, Springer Science + Business Media

    Nisar Ahmed (PhD)

  17. Seismic Attenuation and Velocity Dispersion to Discriminate Gas Hydrates and Free Gas Zone, Makran Offshore, Pakistan

    Article • International Journal of Geosciences, January 2016, Scientific Research Publishing, Inc,

    Nisar Ahmed (PhD)

  18. Differentiation of Pore Fluids Using Amplitude versus Offset Attributes in Clastic Reservoirs, Middle Indus Basin, Pakistan

    Article • Arabian Journal for Science and Engineering, December 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  19. An application of AVO derived attributes to analyze seismic anomalies of gas hydrate bearing sediments in Makran offshore, Pakistan

    Article • Acta Geodaetica et Geophysica, October 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  20. Modulus defect, velocity dispersion and attenuation in partially-saturated reservoirs of Jurassic sandstone, Indus Basin, Pakistan

    Article • Studia Geophysica et Geodaetica, October 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  21. An application of rock physics modeling to quantify the seismic response of gas hydrate-bearing sediments in Makran accretionary prism, offshore, Pakistan

    Article • Geosciences Journal, September 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  22. An Integrated Seismic Interpretation and Rock Physics Attribute Analysis for Pore Fluid Discrimination

    Article • Arabian Journal for Science and Engineering, June 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  23. Rock physics modeling to assess the impact of spatial distribution pattern of pore fluid and clay contents on acoustic signatures of partially-saturated reservoirs

    Article • Acta Geodaetica et Geophysica, February 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  24. AVO forward modeling and attributes analysis for fluid’s identification: a case study

    Article • Acta Geodaetica et Geophysica, January 2015, Springer Science + Business Media

    Nisar Ahmed (PhD)

  25. AVO-derived attributes to differentiate reservoir facies from non-reservoirs facies and fluid discrimination in Penobscot area, Nova Scotia

    Article • Geosciences Journal, November 2014, Springer Science + Business Media

    Nisar Ahmed (PhD)