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Texas Brine Company, LLC
January 12, 2013
1. The Vertical Seismic Profiling (VSP) of the western face of the Napoleonville salt dome began on Wednesday morning. Geophones placed inside of the Observation Well borehole leading to cavern #3 are recording sound waves generated at16 pre-determined surface sites by special vibroseismic trucks. The seismic data collection process is expected to be completed by the middle of next week. After the recorded data has been processed, results of this Vertical Seismic Profile will be compared to a VSP completed in 2010.
2. There have been no observable changes in the characteristics of the sinkhole. In response to heavy rains, crews have been re-positioning and securing containment and absorbent boom to protect against migration of residual liquid hydrocarbons beyond the perimeters of the sinkhole. A survey of the sinkhole was conducted over the past couple of days. The measurements will be used to update the sinkhole profile and dimensions last published on December 18.
3. A second shallow aquifer relief well has been drilled on the Texas Brine site. The well is adjacent to a site where a pressure monitoring well had been used temporarily to vent and flare natural gas. Flaring of the natural gas through Relief Well #1 continues on a 24-hour basis. Landowner agreements have been secured for additional relief wells between the sinkhole and Bayou Corne community. Construction of an access road on which drilling equipment can be moved to the proposed sites will commence as soon as weather conditions allow. Landowner access has been obtained for additional relief wells west and northwest of the sinkhole.
4. The design of the permanent containment berm is progressing well and permit applications have been submitted for its routing. Surveying, soil bore sampling and selected tree removal is expected to begin next week.
5. LDNR has approved the placement of the permanent 480-foot deep, “down hole” geophone array. This array is part of a seismic monitoring system that also includes an array of six surface geophones that are being placed at sites surrounding the sinkhole. The surface geophones will be positioned at depths of approximately 80 feet. Boreholes for four of the six surface phones have been completed. When the surface system is complete, data collected at the surface and by the “down hole” array will be directed to the same repository for analysis. This seismic monitoring system will replace the USGS geophones that are currently in use and placed directly on top of the ground.
6. Texas Brine has issued a purchase order to a seismic surveying company that will design the field work for deep subsurface 3D imaging of the area around the western and southwestern face of the salt dome. The contractor will be responsible for securing access and all necessary permits.
7. The antenna equipment that transmits any signals that might be emitted from the in-home LEL monitors has been received and is being installed at sites in the Bayou Corne community. Installation of the actual in-home monitors is expected to begin next week.
At 3:15 minutes in:
Question: What is your biggest concern for the community at this moment?
John Achee Jr.: A lot of experts have told me there’s an extreme amount of natural gas in the Mississippi Alluvial Aquifer.
DNR themselves have said that it’s possible for another sinkhole to happen if the natural gas in the aquifer finds another weak spot, another sinkhole can happen.
So how do we fix that?
We drill vent wells and vent the aquifer. The problem with that right now seems to be, and I say this hesitantly, but it seems to be money over public safety.
WATCH: The Hole Problem - An Interview with John Achee Jr.
Originally posted by AuntB
reply to post by rimjaja
You are so correct. But if the word is spend in the general area and the residents start looking these bubbling site can be found and hopefully people will be a bit safer. As for not hearing it on the media.... I think our governor has asked for a basic media blackout.
I found another residents bubbling youtube video. This person has some great videos of what is going on.
Bayou Corne~Methane Bubbling Found In Residents Yard
There has been increased seismic activity near the cavern this morning as well as developments of cracks on Oxy 3 pad. At approximately 10:00 this morning, another burp occurred in the sinkhole. The State Police helicopter has arrived to provide aerial viewing. Additional information will be posted as it becomes available.
Texas Brine facility sinkhole appears to be undergoing a growth event...Observations indicate that the current growth event is centered on the east side of the sinkhole – possibly related to shifting of salt and material within the cavern collapse zone.