FRACSAL WATERBASE HM
DESCRIPTION

Fracsal Waterbase HM is formulated as three separate products, Fracsal Waterbase HM1, Fracsal Waterbase HM2, and Fracsal Waterbase HM3, each product with a different crosslink time.  The Fracsal Waterbase HM series consists of a specially sized, sparingly-soluble borate crosslinking agent suspended in an aqueous solution.  Fracsal Waterbase HM series contains a supplemental additive as a scale inhibitor or iron control. Typical usage concentrations for all Fracsal Waterbase HM products is from 1 to 3 gal per 1,000 gal of fracturing fluid with crosslink times ranging from 1 minute to 3.5 minutes depending upon the pH, temperature, and type of polymer-based fracturing fluid system.  Fracsal Waterbase HM packaging can be customized to meet specific requirements.

PHYSICAL PROPERTIES
Frascal Waterbase: HM1 HM2 HM3
Supplemental Additive: Iron Control Scale Inhibitor Iron Control and Scale Inhibitor
Appearance Tan liquid Tan liquid Tan liquid
Specific Gravity (g/mL): 1.3- 1.33 1.14-1.16 1.22-1.25
Pour Point, AsTM D97: -6°C (21.2°F) -9°C(15.8°F) -12°C(10.4°F)
Solubility: Water Water Water

CROSSLINK TIMES AT VERIOUS pHs

 
Product pH
7.5 8.5 9.5 10.5 11.5
Fracsal Waterbase HM1­¹ 0:38 0.23 0.26 0:43 1:14
Fracsal Waterbase HM2² 1:33 1:21 0:57 1:24 3:14
Fracsal Waterbase HM3² 0:42 0:39 0:36 0:50 1:06

CROSSLINK TIMES TEST PARAMETERS
Guar Base: 2% KCl
Polymer Concentrarion: 40 lb/1,000 gal
pH: 7.5 - 11.5
Crosslinking Additive Concentration¹: 1.6 gal/1,000 gal
Crosslinking Additive Concentration²: 2.4 gal/1,000 gal
Temperature 25°C (77°F) 

VISCOSITY VERSUS TIME

VISCOSITY VERSUS TIME TEST PARAMETERS
Guar Base: 2% KCl
Polymer Concentrarion: 25 lb/1,000 gal
pH: 11.8
Viscosity, 300 rpm: 20 cP
Crosslinking Additive Concentration: 1-1.5 gal/1,000 gal
Temperature 93.0°C (200°F) 
Pressure: 400 psi