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Hutch Jobe, SM Energy - Tight Oil From Shale Plays World ...

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Rock Properties<br />

---Brittleness; the ability for rock to fracture<br />

naturally or fracture via stimulation; it can be<br />

proportional to permeability and stimulation<br />

enhancement<br />

---Brittleness and elasticity is a function of<br />

lithology/composition<br />

---Siliceous and dolomitic rocks tend to be<br />

more brittle than limestones and clay rich<br />

rocks; clay in rock correlates to more<br />

ductility

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