Geomechanical case study: Cook Inlet Alaska

To case or not to case?

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© Cambridge University Press Zoback, Reservoir Geomechanics (Fig. 10.21, pp. 334)

Emperical strength model from cores

$${}$$

$$ C_0 = 1.745 \times 10^{-9} \rho V_p^2 -21 $$

$${}$$ $${}$$

© Cambridge University Press Zoback, Reservoir Geomechanics (Table 4.1, Eq. 5, pp. 113)

Pressure drawdown and sand production

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500 psi slow drawdown	$\sim 60^\circ$ breakouts
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1000 psi rapid drawdown	$> 90^\circ$ breakouts

© Cambridge University Press Zoback, Reservoir Geomechanics (Fig. 10.22, pp. 335)

Preventing sand production by limiting production rate

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© Cambridge University Press Zoback, Reservoir Geomechanics (Fig. 10.23, pp. 336)

Preventing sand production with perforation orientation

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© Cambridge University Press Zoback, Reservoir Geomechanics (Fig. 10.24a, pp. 337)

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© Cambridge University Press Zoback, Reservoir Geomechanics (Fig. 10.25, pp. 338)

Preventing sand production with azimuth changes

Considering fixed horizontal perforations

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© Cambridge University Press Zoback, Reservoir Geomechanics (Fig. 10.24b, pp. 337)