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  3. Dependence of Sedimentation Behavior on Pore-Fluid Chemistry for Sediment Collected From Area B, Krishna-Godavari Basin During India's National Gas Hydrate Program, NGHP-02
  4. Sedimentation Rate Dependence on Pore Fluid Chemistry for Sediment Collected From Area B, Krishna-Godavari Basin, During India's National Gas Hydrate Program Expedition NGHP-02

Sedimentation Rate Dependence on Pore Fluid Chemistry for Sediment Collected From Area B, Krishna-Godavari Basin, During India's National Gas Hydrate Program Expedition NGHP-02

Dates

Publication Date
Start Date
2015-05-18
End Date
2015-05-27

Citation

Jang, J., Waite, W.F., Stern, L.A., Collett T.S., and Kumar, P., 2018, Dependence of sedimentation behavior on pore-fluid chemistry for sediment collected from Area B, Krishna-Godavari Basin, during India's National Gas Hydrate Program, NGHP-02: U.S. Geological Survey data release, https://doi.org/10.5066/P9FXJ1VX.

Summary

One goal of the Indian National Gas Hydrate Program's NGHP-02 expedition was to examine the geomechanical response of marine sediment to the extraction of methane from gas hydrate found offshore eastern India in the Bay of Bengal. Methane gas hydrate is a naturally occurring crystalline solid that sequesters methane in individual molecular cages in a lattice of water molecules. Methane gas hydrate is a potential energy resource, but whether extracting methane from gas hydrate in the marine subsurface is technically and economically viable remains an open research topic as of 2018. This data release provides insight about a poorly quantified aspect of this process: the reaction of fine-grained sediment particles (fines) to the change [...]

Contacts

Contact :
Junbong Jang
Author :
Junbong Jang, William F Waite, Laura A Stern, Timothy S Collett, Pushpendra Kumar
Data Owner :
Coastal and Marine Geology Program
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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NGHP02_AreaB_Sedimentation_Metadata.xml
“CSDGM metadata.”
Original FGDC Metadata
View 		44.46 KB application/fgdc+xml
NGHP02_AreaB_Sedimentation_Data.csv
“Data in CSV format.” 		19.31 KB text/csv
NGHP02_AreaB_Sedimentation_Data.xlsx
“Data in XLSX format.” 		44.14 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
NGHP02_AreaB_Sedimentation_BrowseGraphic.png
“Sedimentation dependence on pore fluid chemistry for the overburden seal.” 		thumbnail 557.66 KB image/png
LandingPage_BrowseGraphic.png
“Sedimentation test definitions of the accumulation and depositional interfaces.” 		thumbnail 1.27 MB image/png

Purpose

As sediment settles in fluid, one or more fluid-sediment interfaces tend to form and move over time. Tracking the position of the accumulated and depositional interfaces (defined in the attribute labels below and in the browse graphic) over time in different fluids yield insights into the dependence of interparticle interactions on fluid chemistry. Sedimentation data contained in this report include NGHP-02 sediment specimens from a gas hydrate-bearing reservoir, as well as from the overlying and underlying seal sediment. Additionally, pore fluid chemistry is varied to reveal sediment behavior trends, particularly with regard to the pore-fluid freshening that will occur if methane is extracted as an energy resource from gas hydrates hosted by these reservoir sediments in situ. Results presented here are used to support discussions of anticipated behaviors in the natural system offshore India as presented in the related journal article [Jang and others, 2018].
Sedimentation dependence on pore fluid chemistry for the overburden seal.
Sedimentation dependence on pore fluid chemistry for the overburden seal.

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