A study will be released relating to the Barnett Shale induced seismicity and how north Texans should prepare for a possible 6.5 earthquake. So I emailed one of the scientists of the study, Peter Hennings, who is the Principal Investigator for The Center for Integrated Seismicity Research at The University of Texas Bureau of Economic Geology and questioned if the large fault line near the Viridian (new Arlington upscale home development across from the dump and south of highly explosive petroleum storage tanks) was included in the study and he responded, “Yes, there is a large fault in the subsurface of that area and it is included in our study”. He went on to explain (which should have been good news) that the big faults aren’t the problem. So I have asked for clarification as I have rephrased his statement to more easily read…. (I have also boldfaced for emphasis)…”
“In fact, in almost all of the areas where induced seismicity has occurred in the last decade in the southern midcontinent of the US, these induced seismic events have NOT occurred on ‘known’ larger fault lines, but rather has been occurring on previously unrecognized faults”.
His response was, “What you wrote is accurate in my opinion. Regards – Peter.”
To add to the bad news, Texas Sharon of https://www.earthworksaction.org/, had some email input to Mr Hennings’ (now in doubt) good news email…..
Mr Hennings wrote:
“…but given that the rate of injection is quickly decreasing in the DFW area means we should be ultimately headed for less risk overall. Thanks – Peter”
TX Sharon responded….
“Hello, I was copied on this email so I would like to find out how we know that the injection is decreasing? People who live by the injection well at the airport report that activity has picked up quite a bit with many trucks coming and going.
Sharon Wilson, Senior Organizer
EARTHWORKS’ Oil and Gas Accountability Project
- fracking is of more intense pressures;
- that even short violations of Mother Nature can set into motion seismic responses years later.
Here is his video testimony…
Contrast the insane aggregate number of gas wells to the number of injection wells, and all that energy has to burp somewhere, sometimes.
Henry provided stats:
barrels per minute of injection wells = 2-3 bbl verses
barrels per minute during fracking = about 200 bbls
PSI for injection wells = 1,000-3,000 PSI verses
PSI during fracking = 10,000-20,000 PSI.
Time frame of energy storage before seismicity = 18-30 months or less.