Engineering Aspects of Unconventional Oil and Gas Reservoirs ...
Engineering Aspects of Unconventional Oil and Gas Reservoirs ...
Engineering Aspects of Unconventional Oil and Gas Reservoirs ...
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Starting Points: <strong>Engineering</strong> <strong>Aspects</strong> <strong>of</strong> UR<br />
●What we REALLY know…<br />
■ Tight <strong>Gas</strong> is Relatively Easy (Vertical Wells, HP/HT, PVT)<br />
■ <strong>Gas</strong> Shales are Technically Viable as a Resource (Economics?)<br />
■ We Can Consistency Deploy Horizontal Multi-Fracture Wells…<br />
●What we THINK know…<br />
■ The fracture geometry is…<br />
■ The phase behavior…<br />
■ The p tf to p wf conversion(s)<br />
●What we may NEVER know…<br />
■ Distribution <strong>of</strong> natural fractures…<br />
■ Transport mechanism for gas/liquids in shales<br />
(planar? complex?)<br />
(Can be extremely complex…)<br />
(what about the heavy water load?)<br />
●What we should know in the near future…<br />
■ Minimal/average duration <strong>of</strong> data required for EUR?<br />
■ Much better underst<strong>and</strong>ing <strong>of</strong> phase behavior.<br />
■ Optimal well spacing/orientation/placement.<br />
(impossible)<br />
(organic)<br />
[TAB]<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 — 2/37
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