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  3. Pressure Core Characterization Tool Measurements of Compressibility, Permeability, and Shear Strength of Fine-Grained Sediment Collected from Area C, Krishna-Godavari Basin, during India's National Gas Hydrate Program Expedition NGHP-02
  4. PCCT measurements of the consolidation characteristics, constrained modulus and compressional wave velocity for fine-grained sediment collected from Area C, Krishna-Godavari Basin during India's National Gas Hydrate Program, NGHP-02

PCCT measurements of the consolidation characteristics, constrained modulus and compressional wave velocity for fine-grained sediment collected from Area C, Krishna-Godavari Basin during India's National Gas Hydrate Program, NGHP-02

Dates

Publication Date
Time Period
2015-07-03

Citation

Jang, J., Dai, S., Yoneda, J., Waite, W.F., Collett T.S., and Kumar, P., 2018, Pressure core characterization tool measurements of compressibility, permeability, and shear strength of fine-grained sediment collected from Area C, Krishna-Godavari Basin, during India's National Gas Hydrate Program Expedition NGHP-02: U.S. Geological Survey data release, https://doi.org/10.5066/P91XJ7DP.

Summary

Understanding how effectively methane can be extracted from a gas hydrate reservoir requires knowing how compressible, permeable, and strong the overlying seal sediment is. This data release provides results for flow-through permeability, consolidation, and direct shear measurements made on fine-grained seal sediment from Site NGHP-02-08 offshore eastern India. The sediment was collected in a pressure core from the Krishna-Godavari Basin during the 2015 Indian National Gas Hydrate Program Expedition 2 (NGHP-02). Gas hydrate is a crystalline solid that forms naturally in the sediment of certain marine and permafrost environments where pressure is relatively high (equivalent to the pressure measured ~300 meters water depth or more) and [...]

Contacts

Contact :
Junbong Jang
Author :
Junbong Jang, Sheng Dai, Jun Yoneda, William F Waite, 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_AreaC_Stress_Strain_Modulus_Metadata.xml
“CSDGM metadata.”
Original FGDC Metadata
View 		42.28 KB application/fgdc+xml
NGHP02_AreaC_Stress_Strain_Modulus_BrowseGraphic.png
“PCCT test showing permeability and shear strength during consolidation testing.” 		thumbnail 156.29 KB image/png
NGHP02_AreaC_Stress_Strain_Modulus_Data.csv
“Data in CSV format.” 		4.86 KB text/csv
NGHP02_AreaC_Stress_Strain_Modulus_Data.xlsx
“Data in XLSX format.” 		52.86 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Purpose

The purpose of this dataset is to report several different measures of the stiffness of the fine-grained seal sediment collected in pressure core NGHP-02-08-30P. Stiffness information is given in terms of the stress-strain curves measured during consolidation, with the compressional wave velocity (Vp) and with the constrained modulus. In this work, the constrained modulus (M) is calculated from the consolidation data, and from the wave velocity (Mvp).
PCCT test showing permeability and shear strength during consolidation testing.
PCCT test showing permeability and shear strength during consolidation testing.

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