Oil Well Frac Tank Coatings

Frac Tanks are used to store heated water for injection into an oil well along with a sand or synthetic material which, under extreme pressure and volume, fractures the strata allowing the oil and gas to flow more easily to enable pumping to the surface.
These tanks are commonly made of single wall steel and hold 500 barrels of water or about 21,000 gallons of water.

The tanks are transported empty, moved in place in a row next to the drilling rig and are heated by a mobile boiler fired with LP Gas.

**The cost of heating and reheating the tanks is immense.**

Initial modeling estimated a significant potential savings:

The tanks are transported empty, moved in place in a row next to the drilling rig and are heated by a mobile boiler fired with LP Gas.

Initial modeling estimated a significant potential savings:

- 1.5 BTU / Hr / ft² / °F Heat Loss Through Steel Tank
- 85F °F Water to Air Temperature
- Tank is 8' X 8' X 40' = 1408 sq ft of Tank Area
- 1.5 BTU/Hr/ft² X tank area = 2112 BTU/Hr/°F
- 85°F X 2112 BTU / Hr = 179,520 BTU/Hr
- 24 Hr / Day = 4,320,000 BTU/Day
- Assume 90% efficient boiler
- 4,320,000 BTU/Day / 0.90 = 4,800,000 BTU/Day from LPG
- 97,500 BTU / Gal of LPG
- 49.23 Gallons of LPG per day
- $2.00 per Gal of LPG = $99 per day per tank X 30 days per mo = $2970 per month
- 100 tanks - $297,000 per month

Downloadable Documents