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Table T18. Instantaneous shut in pressures for MDT_080 hydraulic fracture. (See table notes.)

Cycle ISIP time
(s)
ISIP pressure
(MPa)
1 2075 34.82
2 2584 35.05
3 2994 35.13
4 3997 35.17

Notes: These values were chosen by plotting pressure versus linear time and determining the first break in slope after the cessation (shut in) of pumping. See "Dual packer hydraulic fracture test" for discussion. ISIP = instantaneous shut in pressure.

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