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PCCT demonstration of flow rate versus pressure gradient measurements for determining permeability in 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

Attached Files

Click on title to download individual files attached to this item.

NGHP02_AreaC_Permeability_BrowseGraphic.png
“Prof. Dai (left) and Dr. Jang (right) operate the Effective Stress Chamber. ”
thumbnail 1.64 MB
NGHP02_AreaC_Permeability_Data.csv
“Data in CSV format.”
900 Bytes
NGHP02_AreaC_Permeability_Data.xlsx
“Data in XLSX format.”
44.61 KB

Purpose

The purpose of this dataset is to illustrate how a suite of fluid flow rate measurements made over a range of imposed pressure gradients yields a permeability value.

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