Nisar Ahmed

Ul-Haq, Ehsan; Youliang, Ji; Ullah, Hadayat; Shahzad, Khurram; Ahmed, Nisar; Mashwani, Saad Ahmed; Zaheer, Muhammad

(2023)

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

Marine and Petroleum Geology.

ISSN 0264-8172.

Volum 150.

DOI: 10.1016/j.marpetgeo.2023.106103

Ahmed, Nisar; Weibull, Wiktor Waldemar; Grana, Dario; Bhakta, Tuhin

(2023)

Constrained nonlinear amplitude-variation-with-offset inversion for reservoir dynamic changes estimation from time-lapse seismic data.

Geophysics.

ISSN 0016-8033.

Volum 89.

Hefte 1.

s.1-65.

DOI: 10.1190/geo2022-0750.1

Ahmed, Nisar; Weibull, Wiktor Waldemar; Grana, Dario

(2022)

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

Computers & Geosciences.

ISSN 0098-3004.

Volum 168.

DOI: 10.1016/j.cageo.2022.105214

Ahmed, Nisar; Weibull, Wiktor Waldemar; Quintal, Beatriz; Grana, Dario; Bhakta, Tuhin

(2022)

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

Geophysical Journal International.

ISSN 0956-540X.

Volum 233.

Hefte 1.

s.234-252.

DOI: 10.1093/gji/ggac461

Ahmed, Nisar; Ahmad, Mubasher; Khan, Khalid Amin; Weibull, Wiktor Waldemar; Khalid, Perveiz

(2021)

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

Arabian Journal of Geosciences.

ISSN 1866-7511.

Volum 14.

DOI: 10.1007/s12517-021-07028-z

Akram, Naveed; Ahmed, Nisar; Khan, Muhammad S; Ehsan, Muhammad S; Gul, Muhammad A; Ahmad, Mubasher

(2020)

Reservoir Characterization by using Petrophysical-Electrofacies Analyses and Subsurface Structural Interpretation of the Nandpur Gas Field, Middle Indus Basin, Pakistan.

Himalayan Geology.

ISSN 0971-8966.

Volum 41.

Hefte 2.

s.208-221.

Ahmed, Nisar; Weibull, Wiktor Waldemar

(2022)

Gradient Descent Optimization Method for AVO Inversion in Viscoelastic Media.

83rd EAGE Annual Conference & Exhibition;

2022-06-05 - .

Ahmed, Nisar; Weibull, Wiktor Waldemar

(2020)

Estimation of Seismic Response by AVO Inversion due to Changes in Oil-Saturation and Pressure during Production.

European Association of Geoscientists and Engineers (EAGE) 2020;

2020-12-08 - 2020-12-11.