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<blockquote data-quote="John Roberts" data-source="post: 43291" data-attributes="member: 126">Re: freaking frakingI expect the lawyers will drive the earthquake debate, by chasing any deep pockets they can identify, but it seems unnecessary since they were apparently injecting waste water, that could be recycled (I ASSume).AFAIK the tectonic stability is more of an issue around geothermal energy wells, since the injected water expands many times over when it turns into steam and is more disruptive. I expect deep injection wells are probably deep enough to experience elevated temperatures, but how deep matters. !0k&#039; down is hot, 20k&#039; down is boiling, and 30k&#039; down is 400&#039;F. My guess is these wells are closer to 10k&#039; than 30k&#039; so probably not making steam. Not to raise commerce clause issues, but it appears the waste water that was causing these temblors in OH was from PA wells.&nbsp; Interesting times, but it&#039;s worth it to them and us all to make this work, while at the moment we have a surplus of NG, so this isn&#039;t urgent. However we can always use the jobs, and cheaper energy, IMO.&nbsp; JR</blockquote>

[QUOTE="John Roberts, post: 43291, member: 126"] Re: freaking fraking I expect the lawyers will drive the earthquake debate, by chasing any deep pockets they can identify, but it seems unnecessary since they were apparently injecting waste water, that could be recycled (I ASSume). AFAIK the tectonic stability is more of an issue around geothermal energy wells, since the injected water expands many times over when it turns into steam and is more disruptive. I expect deep injection wells are probably deep enough to experience elevated temperatures, but how deep matters. !0k' down is hot, 20k' down is boiling, and 30k' down is 400'F. My guess is these wells are closer to 10k' than 30k' so probably not making steam. Not to raise commerce clause issues, but it appears the waste water that was causing these temblors in OH was from PA wells. Interesting times, but it's worth it to them and us all to make this work, while at the moment we have a surplus of NG, so this isn't urgent. However we can always use the jobs, and cheaper energy, IMO. JR [/QUOTE]

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