skookerasbil
Platinum Member
lol..........nobody cares about this
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Just dangerous to LIVE over methane infused ground in the first place..Kinda sounds like you're saying the ground water is already bad, so making it worse isn't a problem ...
Just two SIDE thoughts:
- If you live in one of these areas, maybe the people there ought to be more concerned with pumping some of this valuable fossil fuel out themselves on their property and PROFITING from it rather than just bitching about their water?
- Aren't there systems available by which you can add filtration to your water to clean it of most anything to make it safe for household use?
Frac fluid is a crosslinked gel. The major components are guar (or a refined guar like HPG), water and sand or proppant. The other additives (biocides, surfactants, etc.) are minuscule in comparison. Crosslinked gel is how the frac fluid builds viscosity which is necessary to carry the sand or proppant.What chemicals do fracking companies pump in the ground?
The toxicity is next to nothing. Where does it go? It stays in the zone it was injected into. Realize that the hydrocarbon they are after is contained by the same strata.It's an engineered solution that added to the clean water.. Contains surfactants (soap), benzene, and a couple other things.. There are diff vendors with diff recipes.. The benzene is lower in that solution than what is FOUND NATURALLY in the shale under a gas field.. Like pissing into a sewer..
What happens to this engineered solution after it's been used? ... is it recycled and reused, or is it just left behind? ...
Kinda sounds like you're saying the ground water is already bad, so making it worse isn't a problem ...
The toxicity is next to nothing. Where does it go? It stays in the zone it was injected into. Realize that the hydrocarbon they are after is contained by the same strata.
The purpose of fracing is to inject a sand slurry that will leave behind a higher permeability path for hydrocarbons in the reservoir to flow to the well. It is done for productivity purposes. First a pad (water, gel and crosslink plus a small amount of additives) is pumped above rock closure pressure which builds geometry (width, height and length). Then several stages of increasing sand density is added to the frac fluid to create the higher perm pathway.
Typically we are talking about a maximum height of a couple of hundred feet, a 1/4" of width and then depending upon if it is a soft rock or hard rock application as short as 90 ft to several hundred ft of length or radius. If you look at a lithological cross section you would see that based upon the amount pumped it would be next to impossible to affect anything that wasn't a couple of hundred feet away. I am not saying that there is no risk of frac'ing into fresh water. I am saying that for the vast number of applications, it is very safe. The shallower one is the greater the risk but anything deeper than 3000 ft is safe to frac. Like I said before... millions of wells have been frac'd.
Yep, we typically see 10% come back during flowback. We aren't as efficient as people think we are at getting stuff out of the ground.The toxicity is next to nothing. Where does it go? It stays in the zone it was injected into. Realize that the hydrocarbon they are after is contained by the same strata.
The purpose of fracing is to inject a sand slurry that will leave behind a higher permeability path for hydrocarbons in the reservoir to flow to the well. It is done for productivity purposes. First a pad (water, gel and crosslink plus a small amount of additives) is pumped above rock closure pressure which builds geometry (width, height and length). Then several stages of increasing sand density is added to the frac fluid to create the higher perm pathway.
Typically we are talking about a maximum height of a couple of hundred feet, a 1/4" of width and then depending upon if it is a soft rock or hard rock application as short as 90 ft to several hundred ft of length or radius. If you look at a lithological cross section you would see that based upon the amount pumped it would be next to impossible to affect anything that wasn't a couple of hundred feet away. I am not saying that there is no risk of frac'ing into fresh water. I am saying that for the vast number of applications, it is very safe. The shallower one is the greater the risk but anything deeper than 3000 ft is safe to frac. Like I said before... millions of wells have been frac'd.
So ... they just leave it behind ...
Guar is a nitrogen-fixer ... healthier soils AND more natural gas ... too bad I live on mid-Holocene deposits ...
I should probably add that I am a 36 year practicing petroleum engineer. I've done my fair share of fracs.
I should probably add that I am a 36 year practicing petroleum engineer. I've done my fair share of fracs.
How close is this to the water/solution injections used for major geothermal processing plants?
I think the only real diff - is the geometry of the drilling.. I know that a blow-out from a "totally harmless and VERY GREEN" geothermal energy mine can KILL EVERYTHING within a large radius because of the high sulphur and hydrocarbons in the steam.. And that these plants literally rot on site because of corrosion..
And NOBODY wants to live within miles of one of these "keen" Green digs...
I should probably add that I am a 36 year practicing petroleum engineer. I've done my fair share of fracs.
That explains why you're so keen on burning tires ...
How close is this to the water/solution injections used for major geothermal processing plants?
I think the only real diff - is the geometry of the drilling.. I know that a blow-out from a "totally harmless and VERY GREEN" geothermal energy mine can KILL EVERYTHING within a large radius because of the high sulphur and hydrocarbons in the steam.. And that these plants literally rot on site because of corrosion..
And NOBODY wants to live within miles of one of these "keen" Green digs...
I wouldn't think there'd be much methane near geothermal activity ... as far as I know, there no fossil fuels within 1,000 mile of here, and we've plenty of geothermal ... Cascades are new lands, eroding as fast as the eruptions ...
If geo is there, I say use it ... a community across the mountains pumps it under their main streets and keeps them ice free in winter ... plus the electricity ... they have something of a unique resource and they're exploiting it ... God knows that place has nothing else ... no sulfur or hydrocarbons worth yelling about, just the boiling water that pours out of the ground ...
HONOLULU — Hawaii state officials ordered a geothermal company to halt all drilling Friday after a well blowout spewed toxic gas and routed 75 people from their homes on the island of Hawaii.
Opponents of geothermal drilling near the nation's last remaining tropical rain forest claimed the accident shows Hawaii's volcanic resource may be unmanageable.
Don't get me to lying to you, I only have passing knowledge of geothermal wells. I doubt they viscosify their injection fluid because to my knowledge they aren't injecting proppant. Our production horizons aren't anywhere near as nasty as what you are describing. Sure there are some intervals with H2S but those are few, far between and not the magnitude of what you are describing. What you are describing is related to the formation they are injecting into, not the injection fluid.I should probably add that I am a 36 year practicing petroleum engineer. I've done my fair share of fracs.
How close is this to the water/solution injections used for major geothermal processing plants?
I think the only real diff - is the geometry of the drilling.. I know that a blow-out from a "totally harmless and VERY GREEN" geothermal energy mine can KILL EVERYTHING within a large radius because of the high sulphur and hydrocarbons in the steam.. And that these plants literally rot on site because of corrosion..
And NOBODY wants to live within miles of one of these "keen" Green digs...
not how I read it. I interpreted as the contaminants have been there, and the readings today are consistent and similar to previous years that any contaminants are natural and not added by fracking.It's an engineered solution that added to the clean water.. Contains surfactants (soap), benzene, and a couple other things.. There are diff vendors with diff recipes.. The benzene is lower in that solution than what is FOUND NATURALLY in the shale under a gas field.. Like pissing into a sewer..
What happens to this engineered solution after it's been used? ... is it recycled and reused, or is it just left behind? ...
Kinda sounds like you're saying the ground water is already bad, so making it worse isn't a problem ...
not how I read it. I interpreted as the contaminants have been there, and the readings today are consistent and similar to previous years that any contaminants are natural and not added by fracking.