FN Archimer Export Format
PT J
TI Methane hydrate-bearing sediments: Pore habit and implications
BT 
AF Terzariol, Marco
   Park, Junghee
   Castro, Gloria M.
   Santamarina, J. Carlos
AS 1:1;2:2;3:2;4:2;
FF 1:PDG-REM-GM-LAD;2:;3:;4:;
C1 IFREMER, Geosciences Marines, LAD, Plouzane, France
   Earth Science and Engineering, Building 5, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
C2 IFREMER, FRANCE
   UNIV KING ABDULLAH, SAUDI ARABIA
SI BREST
SE PDG-REM-GM-LAD
IN WOS Ifremer UPR
   copubli-int-hors-europe
IF 4.348
TC 40
UR https://archimer.ifremer.fr/doc/00609/72158/70924.xml
   https://archimer.ifremer.fr/doc/00609/72158/70925.pdf
   https://archimer.ifremer.fr/doc/00609/72158/73484.pdf
LA English
DT Article
DE ;Hydrate accumulation database;Gas production;Methane hydrate pore habit;Revised soil classification system
AB Hydrate-bearing sediments are relevant to the organic carbon cycle, seafloor instability, and as a potential energy resource. Sediment characteristics affect hydrate formation, gas migration and recovery strategies. We combine the physics of granular materials with robust compaction models to estimate effective stress and capillary pressure in order to anticipate the pore habit of methane hydrates as a function of the sediment characteristics and depth. Then, we compare these results to an extensive database of worldwide hydrate accumulations compiled from published studies. Results highlight the critical role of fines on sediments mechanical and flow properties, hydrate pore habit and potential production strategies. The vast majority of hydrate accumulations (92% of the sites) are found in fines-controlled sediments at a vertical effective stress between σ′z = 400 kPa and 4 MPa, where grain-displacive hydrate pore habit prevails in the form of segregated lenses and nodules. While permeation-based gas recovery by depressurization is favored in clean-coarse sediments, gas recovery from fines-controlled sediments could benefit from enhanced transmissivity along gas-driven fractures created by thermal stimulation. 
PY 2020
PD JUL
SO Marine And Petroleum Geology
SN 0264-8172
PU Elsevier BV
VL 116
UT 000528600100024
DI 10.1016/j.marpetgeo.2020.104302
ID 72158
ER

EF