Hydraulic fracturing to determine
Hydraulic fracture initiation in vertical
well
Leako� test (mini-frac, FIT, XLOT)
© Cambridge University Press (Fig. 7.2, pp. 211)Zoback, Reservoir Geomechanics
from instantaneous shut-in pressure
© Cambridge University Press (Fig. 7.3, pp. 213)Zoback, Reservoir Geomechanics
© Cambridge University Press (Fig. 7.3, pp. 213)Zoback, Reservoir Geomechanics
Step-rate test
© Cambridge University Press (Fig. 7.5, pp. 216)Zoback, Reservoir Geomechanics
Be careful!
When integrate density logs
© Cambridge University Press (Fig. 7.4, pp. 214)Zoback, Reservoir Geomechanics
What about ?
so
or
Does it work?Consider a system with compressibility
Answer: Not very well.