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Name: Owen
Status: Student
Age: 18
Location: N/A
Country: N/A
Date: N/A 


Question:
Can you explain how a porous earth can hold natural gas and oil without them escaping, when gas and oil are under pressure?



Replies:
It can't. Something impenetrable has to hold the fluid in, such as a layer of clay or impermeable rock.

Richard E. Barrans Jr., Ph.D.
Assistant Director
PG Research Foundation, Darien, Illinois



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