IMAGES OF DFW AIRPORT BARNETT SHALE OPERATIONS
Aerial photo of airport with well pad locations
marked (image courtesy CHK). FIG. 2a
Baylor Archer McCulloch Burnet Hamilton Throck- Morton Wichita Young Dickens Foard Jack Fannin Knox Motley Cottle Hall Jones Somervell Callahan Eastland Stephens Nolan Taylor Palo Pinto Erath Parker Tarrant Hood Johnson Hill Schleicher Menard Milam Llano Mason San Saba Mills Tom Green Concho Leon Coryell Bell Williamson Falls Comanche Brown Coleman Coke Runnels Bosque Freestone T e x a s Oklahoma Barnett shale play with airport in core area. Barnett shale producing area Extent of Barnett shale Fort Worth basin Core area
Vibroseis trucks on terminal apron
(image from Jim Johnstone, Contek Solutions).
now dragging its feet and announced it will only drill 3 or 4
further wells in 2014 and 2015 to meet leasehold obligations.
A detailed project timeline of the DFWA shale development
project lease signed in October 2006 is reconstructed in Fig.
A range of technical challenges were faced of which some
notable examples are outlined here. The first major operations were the night-time seismic surveys that required the
Vibroseis trucks and recording equipment at the runways
and platforms of the airport between December 2006 and
March 2007 (Fig. 2 a-c).
That period of surface activity was followed by the rapid deployment of a 24-in. pipeline around the perimeter of
the airport and lateral gas gathering lines of 8 to 24-in. that
serve to collect the production from the gas wells. The gas
gathering lines flow toward a major compressor station located in the north of the airport that is connected to the regional distribution network for delivery to the market.
There were also installed more than 100 miles of 10 to
12-in. polyethylene pipes to carry fresh water used for fracking the wells and to evacuate salt water separated from the
production fluid back to two injection wells. Many of these
service pipelines had to pass underneath runways and other
structures, so advanced horizontal drilling technology was
used to meet all requirements for safe construction in close
coordination with DFW departments. 3
The injection of the brine fluid was started in September
2008 and continued until August 2009, when the first 110
wells were all fracked and placed on production.
The brine injection triggered 9 quakes that occurred at
the southernmost disposal well on Oct. 31, 2008 (Fig. 3).
Injection of salty produced water had started there into the