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[ link to www.flutrackers.com] Krispy - I found this conceptual diagram of the Sinkhole, the Saltdome and the Texas Brine Cavern #3 (oxy 3). best if you can enlarge diagram to see notations and numbers. Not sure what you mean. There are many salt domes in the general area. Within this specific salt dome, there are three caverns, if that is what you refer to. One cavern, #3 is the problem cavern. I'll try to find a diagram in the morning. I think terms are confusing. There is the sinkhole, the saltdome, and caverns (storage caverns, various substances), within the saltdome. This specific saltdome was compromised by the drilling of OXY3/Texas Brine cavenr #3, as they placed the cavern incorrectly - too close to the edge of the side of the saltdome. The side of the saltdome is dissolving, the cavern nay be leaking and the rock around the saltdome, thought to be solid is also crumbling and disturbed. THis is how stuff, brine, gas, water, is coming up to further compromise /create the area of the sink hole. This is my understanding. I could be incorrect. Many salt-DOMES in Louisiana : [ link to theadvocate.com] Earlier model next to a new 3D model of the Salt-dome, sinkhole-lake and the cavern #3 [ link to theadvocate.com] Article talking about the actual size of it all (good read): [ link to theadvocate.com] Interesting stuf on this site [ link to www.flutrackers.com] EMILY posted a map of the caverns and their old names : Here's a dome map. I think the currently collapsing Oxy3 is the one I circled in red, and Oxy1 is the one I circled in purple:
(Hooker 6,7,8 got renamed to Vulcan 1,2,3 at some point...which is also called Oxy 1,2,3 now, I'm assuming)
[link to i1108.photobucket.com]
Source for the above map : [link to ucmwww.dnr.state.la.us]
Oxy3 is the westernmost brine well (BW) on the dome at the point that map was made, but in 1987 on page 33 in this document, Texas Brine says Hooker 6 was the only well in that westernmost area that had encountered an 'anomaly' - shale. (There is more on that on page 75.)
That doesn't agree with the 1997 article by Sandia scientists, since Hooker 6 is a little east of Hooker 8, (a.k.a. Vulcan/Oxy3). So I'm still unsure about which of those two caverns had some sort of incident prior to 1997.
Oxy3/Hooker8 was mined after Oxy1/Hooker6 Quoting: EmilyThat ANOMALY & Oxy #3 : [ link to freedomrox.wordpress.com] This Well is currently undergoing a workover and was found to have an anomaly in the casing at 670 ft. This is just below the caprock where it enters the salt. Any anomoly could be indicative of salt rock movement, yet no details of this anomoly has been forthcoming. The flat bottom shown is the shale/salt rock, and the dogleg is the Cementing job. Texas Brine could find the money for cementing both these shallow and potentially dangerously hollow spaces on the edge and one definitely sitting upon the Shale, yet could not spare a dime to cement the bottom of Oxy #3, since it was no longer useful to their interests.An answer commes from Freedomrox: I believe I can answer your questions about Hooker #6, Oxy #1. Back in 1987Texas Brine sought to expand the solution mined cavern for larger storage capacity, but failed. They went down to 3000 ft. approximately, and hit shale rock. They then plugged off and cemented the bottom and proceeded to brine the cavern outwards more towards the top. This is the most deformed and shallowest of caverns as shown by the 1993 SONAR survey.
[link to ucmwww.dnr.state.la.us]
As for the 1997 paper, this speaks of Oxy 3, as is shown by coordinates of it being the westernmost cavern in the Salt Dome. The last 500 ft. at the time, showed the straight line deformation of where the cavern had been miscalculated and was now resting upon the shale sheath, which is all that held containment at the time.
SONAR Survey and VSP shown at my blog.
[link to freedomrox.wordpress.com]
What was not taken into account was two-fold, first they did not take into account the effects of drawdowns, as this would widen the area against the sheath that was bereft of salt. This finally left about the deepest 1000 ft. (4500-5500 ft.) of the cavern and the contents and pressures sitting on the actual shale sheath itself from the inside.
The second thing not taken into consideration was that salt creeps. When a cavern is filled it is under pressure, plus the weight of the overburden, and when it is drawndown then the salt creeps back in with the difference in temps and pressures. In a very real way, it can be stated a salt cavern functions similar to a lung. This is due to the plasticity of salt rock. Shale has no such elasticity. It can only take so much in the way of pressure, and then it fractures.
Now, add to this that Big Hum, Marg Vag and all the oil and gas and water formation sands were pressing from the outside of the Salt Dome and pinching up against the very same shale sheath that was dealing with the cavern pressures in almost the exact same spots but from opposing sides. When this shale sheath finally fractured, it was a mighty geologic explosion 4500-5500 ft. down. Enough of one to fracture the shale and other materials all the way to the surface.
Every bit of this was known by LDNR and Texas Brine long before the mill out that failed the MIT test, and they Plugged and Abandoned Oxy #3. If they had drawndown the cavern one last time and Cemented the bottom 1000 ft.. then pumped back the brine and P&A'd the cavern, then this probably would not have ever happened. Due to the costs, they chose not to. LDNR knew this as well, even about the oil sands pressing against the shale sheath and cavern, due to their accessibility to Golden Gate's proprietary 3-D 2007 survey, that no one else has been allowed to see. Quoting: Freedomrox2 images that clear up whats around oxy #3 [ link to www.flutrackers.com] [ link to www.flutrackers.com] Question: Could the movement in the Bayou sinkhole-lake come from " push-waters"? ... ‘push waters’, (produced waters), that are possibly the actual drives behind the waters that are forcing hydrocarbons into the Mississippi River Alluvial Aquifer, (MRAA) at the sinkhole in Bayou Corne, as well as forcing the methane gas deposits into the MRAA aquifer as well.
There is nothing we can find to stop the fractured ‘Depleted Oil Formation Wells’ from supplying the surrounding Formation Sands from migrating eastwards, and supply the ‘Push Waters’, (which are Oil Drilling Waste Waters injected into the earth), forcing the oil, and gas into the ‘Great Louisiana Sinkhole’.
[link to freedomrox.wordpress.com] Note *** freedomrox has written great articles and blogs with tonnes of information and depth research into owner-history, geology, errors [or deliberate actions], residence testimonials, etc ...
[link to freedomrox.wordpress.com]
Kudos for Freedomrox !!!xxxK
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