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Contaminate Migration Expected Under SB 4 “Well Stimulation Regulations” for California
Tomas DiFiore
Well Casing Failures a.k.a. Sustained Casing Pressures - It's really quite simple to understand, cement shrinks, and cracks. Five per cent of all wells drilled show a cement failure immediately. Based on the history of conventional wells, and recent peer reviewed research: “Probablistically, the range of events expected for longer wells, with higher pressures, larger volumes of frac fluids, and more wells per pad, are that we should expect a higher accident rate. And that is what we're seeing.”

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