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<blockquote data-quote="backhoeboogie" data-source="post: 989810" data-attributes="member: 3162"><p>They are fracturing the shale formation here at 6500 feet, give or take. My newest water well is 630 feet deep or about 6000 feet above the shale. </p><p></p><p>The shale already contains cracks and fissures. Nothing different than limestone layers on the ground. Just not very big cracks. </p><p></p><p>A guy in my neighborhood invented modern day "fracing" (fracturing). What they do is pressurize the shale beds and crack them and lift them with a whole lot of pressure. Then they blow sand into these cracks/fissures. When pressure is removed, the sand granules keep the cracks open such that hydrocarbons (natural gas mostly here) can pass through these cracks. </p><p></p><p>That is the simplest way I know to express it. Fracturing is not new. Blowing sand into the cracks and fissures is the new technology that enables our shale to be productive. </p><p></p><p>They have been drilling three wells horizontally through the shale and fracturing all three simultaneously. This does a much better job on these shale beds versus the old one well method. Over doing it results in water flow (salt water) and that's about all you get out of the shale beds. These wells generally wind up capped and it is a loss. So you don't want to over do it. </p><p></p><p>No earth quakes in my town yet but some near by. I don't view these little trimmers as earthquakes. They are nothing like the trimmers I experienced daily in Alaska when I was a kid. I survived the Good Friday '64 earthquake in Alaska when Mt Redoubt blew. Hence, these little ground trimmers are not earthquakes in my opinion. They are less than what I experienced there almost daily/weekly.</p></blockquote><p></p>
[QUOTE="backhoeboogie, post: 989810, member: 3162"] They are fracturing the shale formation here at 6500 feet, give or take. My newest water well is 630 feet deep or about 6000 feet above the shale. The shale already contains cracks and fissures. Nothing different than limestone layers on the ground. Just not very big cracks. A guy in my neighborhood invented modern day "fracing" (fracturing). What they do is pressurize the shale beds and crack them and lift them with a whole lot of pressure. Then they blow sand into these cracks/fissures. When pressure is removed, the sand granules keep the cracks open such that hydrocarbons (natural gas mostly here) can pass through these cracks. That is the simplest way I know to express it. Fracturing is not new. Blowing sand into the cracks and fissures is the new technology that enables our shale to be productive. They have been drilling three wells horizontally through the shale and fracturing all three simultaneously. This does a much better job on these shale beds versus the old one well method. Over doing it results in water flow (salt water) and that's about all you get out of the shale beds. These wells generally wind up capped and it is a loss. So you don't want to over do it. No earth quakes in my town yet but some near by. I don't view these little trimmers as earthquakes. They are nothing like the trimmers I experienced daily in Alaska when I was a kid. I survived the Good Friday '64 earthquake in Alaska when Mt Redoubt blew. Hence, these little ground trimmers are not earthquakes in my opinion. They are less than what I experienced there almost daily/weekly. [/QUOTE]
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