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Engineering Aspects of Unconventional Oil and Gas Reservoirs ...

Engineering Aspects of Unconventional Oil and Gas Reservoirs ...

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Field Example: Bakken <strong>Oil</strong> Well<br />

■ Log-log plot: Normalized rate functions versus<br />

material balance time (data).<br />

■ Log-log plot: Normalized rate functions versus<br />

material balance time (data <strong>and</strong> models).<br />

[DI]<br />

●Discussion: Model-Based Production Analysis<br />

■ Good diagnostic character <strong>of</strong> the data functions.<br />

■ No strong evidence <strong>of</strong> linear flow is observed.<br />

■ Good match <strong>of</strong> the data with the analytical model solution.<br />

■ Model: Horizontal well with multiple transverse fractures.<br />

StrataGen <strong>Engineering</strong> — 2011 Workshop<br />

Stimulation <strong>of</strong> <strong>Unconventional</strong> <strong>Oil</strong> <strong>and</strong> Natural <strong>Gas</strong> Liquid <strong>Reservoirs</strong> — 27 April 2011<br />

<strong>Engineering</strong> <strong>Aspects</strong> <strong>of</strong> <strong>Unconventional</strong> <strong>Oil</strong> <strong>and</strong> <strong>Gas</strong> <strong>Reservoirs</strong><br />

Dilhan Ilk (DeGolyer & MacNaughton)/T.A. Blasingame (Texas A&M U.)<br />

Slide — 32/37

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