Joint analysis of P-wave velocity and resistivity for morphology identification and quantification of gas hydrate

T Liu, X Liu, T Zhu - Marine and Petroleum Geology, 2020 - Elsevier
A knowledge of hydrate morphology is essential for assessing its resource potential,
understanding its formation, and determining optimum strategies for exploitation. Previous …

The first record of active methane (cold) seep ecosystem associated with shallow methane hydrate from the Indian EEZ

A Mazumdar, P Dewangan, A Peketi… - Journal of Earth System …, 2019 - Springer
Here we report the discovery of cold-seep ecosystem and shallow methane hydrates (2–3
mbsf) associated with methane gas flares in the water column from the Indian EEZ for the …

Seismic evidence of free gas migration through the gas hydrate stability zone (GHSZ) and active methane seep in Krishna-Godavari offshore basin

S Gullapalli, P Dewangan, A Kumar, G Dakara… - Marine and petroleum …, 2019 - Elsevier
Seismic amplitude versus offset (AVO) analysis was performed on the multichannel seismic
data in the vicinity of Site NGHP-01-10, where thick fracture-filled gas hydrate is reported, to …

Widespread occurrence of methane seeps in deep-water regions of Krishna-Godavari basin, Bay of Bengal

P Dewangan, G Sriram, A Kumar, A Mazumdar… - Marine and Petroleum …, 2021 - Elsevier
Drilling/coring activities during NGHP-Expeditions 01 and 02 discovered significant gas
hydrate deposits in the Krishna-Godavari (KG) basin, a proven petroliferous basin located …

Spatial distribution of gas hydrate deposits in Krishna-Godavari offshore basin, Bay of Bengal

CK Mishra, P Dewangan, G Sriram, A Kumar… - Marine and Petroleum …, 2020 - Elsevier
To delineate the occurrences of gas hydrates and free gas in the Krishna-Godavari (KG)
basin, Bay of Bengal, we used 3D seismic data to construct a velocity model of high spatial …

Gas hydrate saturation from heterogeneous model constructed from well log in Krishna–Godavari Basin, Eastern Indian Offshore

S Jana, M Ojha, K Sain - Geophysical Journal International, 2015 - academic.oup.com
The occurrence of gas hydrate in shallow marine sediments causes an increase of seismic
velocity compared to that of water saturated host sediments. This increase of velocity …

Modified effective medium model for gas hydrate bearing, clay-dominated sediments in the Krishna–Godavari Basin

G Sriram, P Dewangan, T Ramprasad - Marine and petroleum geology, 2014 - Elsevier
Abstract During NGHP-Expedition-01, well logs were obtained for gas hydrate exploration in
Krishna–Godavari (KG) offshore basin. These logs coupled with a suitable rock physics …

Velocity modeling and attribute analysis to understand the gas hydrates and free gas system in the Mannar Basin, India

CK Mishra, P Dewangan, R Mukhopadhyay… - Journal of Natural Gas …, 2021 - Elsevier
The Mannar basin, located between India and Sri Lanka, is poorly explored for hydrocarbon
compared to other petroliferous basins in the Indian offshore. 2D multichannel seismic data …

[HTML][HTML] Three-Dimensional Amplitude versus Offset Analysis for Gas Hydrate Identification at Woolsey Mound: Gulf of Mexico

S Alam, C Knapp, J Knapp - GeoHazards, 2024 - mdpi.com
The Gulf of Mexico Hydrates Research Consortium selected the Mississippi Canyon Lease
Block 118 (MC118) as a multi-sensor, multi-discipline seafloor observatory for gas hydrate …

[HTML][HTML] The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China

D Lei, C Fu, Q Zhen, Z Wang, R Wang - Scientific Reports, 2022 - nature.com
The environment is seriously threatened by the methane emitted as permafrost melts.
Studying deposits of natural gas hydrates that include methane is therefore important. This …