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Gold/Mining/Energy : Canadian Oil & Gas Companies

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To: Wizzer who wrote (5009)	4/28/1998 3:27:00 PM
From: Kerm Yerman	Read Replies (3) of 24920

Wisam / Fracing Didn't want to field this one by myself. Asked a petroleum engineer and here is his response. Frac'ing: is a means of hydraulically splitting the formation to allow more inflow. You pressure up the zone with oil/water/frac fluid in a specifically timed procedure, crack the zone, then follow up with a "proppant" (sand/beads..) to hold open the fissure permanently thus allowing more exposed zone. A JV company may disagree if it has been tried in similar applications with unsuccsessful results, or the procedure, or the choice of fluid, or the tonnage of sand (length of frac) or the risk of breaking out of zone or into bottom water... all good reservoir engineering stuff. A pressure buildup analyisis should be conducted prior to the frac to determine the degree of damage or "skin" factor.

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