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A GLOBAL OUTLOOK ON METHANE GAS HYDRATES
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2610
2620
2630
2640
2650
2660
2670
2680
2690
2700
2710
Depth(fbsf)
0
50 100
Gamma Ray (API)
10
-1
10
0
10
1
10
2
Resistivity (ohm*m)
0.8 0.6 0.4 0.2
Porosity (ft3/ft3)
5000
10000
Compressional
Velocity (ft/s)
0 0.5 1
Calculated
Gas Hydrate Saturation
Density
Neutron
MP3
S.Vision
n=1.5
n=2.5
WR313“Orange” Sand
Clay-rich, Low-permeability Top Seal
Gas-hydrate-bearing sands
with minor interbedded muds
2610
2620
2630
2640
2650
2660
2670
2680
2690
2700
2710
Depth(fbsf)
0
50 100
Gamma Ray (API)
10
-1
10
0
10
1
10
2
Resistivity (ohm*m)
0.8 0.6 0.4 0.2
Porosity (ft3/ft3)
5000
10000
Compressional
Velocity (ft/s)
0 0.5 1
Calculated
Gas Hydrate Saturation
Density
Neutron
MP3
S.Vision
n=1.5
n=2.5
WR313“Orange” Sand
Clay-rich, Lo -per ea ility
l
Gas-hydrate-bearing sa s
with minor interbedded mu s
Figure 2.9:
Well data from a gas hydrate exploration well drilled in the northern Gulf of Mexico in 2009. These
data obtained from the Walker Ridge 313 “H” well show two sand-rich reservoirs enclosed in clay-rich sediments
that are fully saturated with gas hydrate (right panel). (From Boswell
et al.
, 2012).