Impact of pore-water freshening on clays and the compressibility of hydrate-bearing reservoirs during production

Conference · Sun Jun 25 00:00:00 EDT 2017 · 9th ICGH 2017

OSTI ID:1435694

Jang, Junbong ^[1]; Cao, Shuang ^[2]; Waite, William ^[3]; Jung, Jongwon ^[4]

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1. U.S. Geological Survey, Woods Hole, MA; U.S. Geological Survey, Woods Hole, MA, USA
2. Louisiana State University, Baton Rouge, LA
3. U.S. Geological Survey, Woods Hole, MA
4. Chungbuk National University, Cheongju-si, Chungbuk, South Korea

Gas production efficiency from natural hydrate-bearing sediments depends in part on geotechnical properties of fine-grained materials, which are ubiquitous even in sandy hydrate-bearing sediments. The responses of fine-grained material to pore fluid chemistry changes due to freshening during hydrate dissociation could alter critical sediment characteristics during gas production activities. We investigate the electrical sensitivity of fine grains to pore fluid freshening and the implications of freshening on sediment compression and recompression parameters.

• Research Organization: Louisiana State University
• Sponsoring Organization: USDOE Office of Fossil Energy (FE)
• DOE Contract Number: FE0028966
• OSTI ID: 1435694
• Report Number(s): DOE-LSU-FE0028966-1
• Journal Information: 9th ICGH 2017, Journal Name: 9th ICGH 2017
• Country of Publication: United States
• Language: English