The big question last summer was whether the small earthquakes that popped up around D-FW Airport and Cleburne were linked to natural gas drilling activities in the Barnett Shale.
A team of researchers at SMU and the University of Texas has published a paper that concludes there's a link between the earthquakes and injection wells -- the high-pressure wells used to get rid of millions of gallons of wastewater produced by natural gas wells.
Caveats, according to SMU researcher Brian Stump: The team believes there's a correlation between the earthquakes at DFW airport and injection wells because the airport quakes seemed to be localized around an injection well at the airport. And the quakes stopped when the well was shut down.
But there's no evidence linking actual well-drilling or hydraulic fracturing to the quakes. And the jury is still out on the quakes in Cleburne. There are hundreds of injection wells in the Barnett Shale gas field, and thousands in Texas. Stump said the well at DFW airport is located next to an underground fault line.
Stump said there's definitely a need to do more studies, since a lot of proposed new energy sources like geothermal and "clean coal" power plants will require injecting gas or fluids underground.
The full report is available here: Earthquake-study-10march2010
There's a map on page 4 that shows the location of the airport, the injection well and the earthquakes.
UPDATE: Chesapeake fired back -- and hard -- saying that a "causal relationship . . . has not been scientifically proven."
Read below the jump for Chesapeake's statement -- and watch for the full story in tomorrow's Star-Telegram.
-- Mike Lee