Page 175 - Fundamentals of Gas Shale Reservoirs
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ThE ROlE OF TEcTOnIc AcTIVITIES On PORE PRESSuRE In ShAlES 155
Well#5 Well#5
DT, NCT_Son ( s/ft) RHOB (g/cm )
3
140 120 100 80 60 40 1.95 2.15 2.35 2.55 2.75 2.95
235 235
285 285
DT
RHOB
335 NCT_Son 335 NPHI
Depth (m) PPG_Son Depth (m)
DST press
385 test point 385
435 435
485 485
0.3 0.4 0.5 0.6 0.7 0.8 0.45 0.25 0.05 –0.15
Pressure grad (psi/ft) NPHI (%)
Well#5 Well#5
GR (API) Resistivity (ohm)
0 100 200 300 0.2 2 20 200
235 235
285 285
GR LLD
335 CALI 335 VCLGR
Depth (m) Depth (m)
385 385
435 435
485 485
6 8 10 12 14 16 0 0.2 0.4 0.6 0.8 1
CAL (in.) VCLGR (%)
FIGURE 7.18 Estimated pore pressure and well log data against depth over the Kockatea Shale in Well #5 (Beagle Ridge—Perth Basin).