DESCRIPTION

Fracsal NE additives are non-emulsifiers designed for application in fracturing and acidizing operations.  The Fracsal NE products (Fracsal NE-137, Fracsal NE-158, Fracsal NE-159, Fracsal NE-160) effectively break water blocks, prevent emulsions from forming, and allow water or acid/crude oil emulsions to separate by reducing interfacial tension between brine or acid, and a wide variety of hydrocarbons.  Fracsal NE chemicals are typically added in fracturing operations at concentrations ranging from 1.0 to 2.0 gal/1,000 gal (1.0 to 2.0 L/m3).  When used in acidizing treatments, the concentration ranges from 2.0 to 5.0 gal/1,000 gal (2.0 to 5.0 L/m3).  Specific recommendations will vary based upon the operation to be performed, emulsifying characteristics of the oil encountered in the formation, and the type of treating fluid.  Pilot testing is recommended to determine the optimum concentrations required.  Fracsal NE packaging can be customized to meet specific requirements.

PHYSICAL PROPERTIES AND ENVIRONMENTAL DATA

	Fracsal NE-137	Fracsal NE-158
Appearance:	Clear amber liquid	Clear amber liquid
Specific Gravity:	0.948 - 0.996	0.960 - 1.01
Pour Point, ASTM D97:	-12°C (10.4°F)	-31°C (-23.8°F)
Flash Point, ASTM D56:	26.6°C (80°F)	>93.3°C (200°F)
pH, Neat:	2.5 - 4.5	2.0 - 3.5
Solubility:	Water/15% HCI	Water/15% HCI
Temperature Limit:	176.7°C (350°F)	176.7°C (350°F)
Ionic Charge:	Nonionic	Nonionic/cationic
Wetting Characteristic:	Water wets	Water wets
LC50, 96-Hour:	94,700 ppm	334,400 ppm
Chemical Oxygen Demand:	2,910 mg/L	4,160 mg/L
Biological Oxygen Demand:	164 mg/L	>367.8 mg/L

D50 - Microtox Testing:

Product	Test	EC20	EC50	PASS/FAIL
Fracsal NE-137	MTX - Threshold MTX - Confirmation @ 337 L/m3	22 L/m3 (13 - 58)   <11%	370 L/m3 (180 - 760)   >91%	not applicable   PASS
Fracsal NE-158	MTX - Threshold MTX - Confirmation @ 4.9 L/m3	1.6 L/m3 (0.91 - 2.8)   22% (14 - 35)	5.4 L/m3 (3.3 - 9.0)   >91%	not applicable   PASS