DESCRIPTION
Fracsal II crosslinking
additive consists of a specifically sized, sparingly-soluble borate
crosslinking agent suspended in a hydrocarbon based carrier
fluid. A standard concentration for Fracsal II is 1.0 gal per 1,000 gal
of fracturing fluid with crosslink times ranging from 3 to 5
minutes depending upon the pH, temperature, and type of
polymer-based fracturing fluid system. Fracsal II packaging can be
customized to meet specific requirements.
PHYSICAL PROPERTIES AND ENVIRONMENTAL DATA
| Appearance: |
Tan Liquid
|
Specific Gravity:
|
1.15 - 1.20 |
Pour Point, ASTM D97:
|
-26.7°C (-16°F) |
| Flash Point, ASTM D93: |
79.4°C (175°F) |
Solubility:
|
Dispersible in water |
CROSSLINKING TIMES AT VARIOUS pH VALUE
|
pH
|
7.6
|
8.6
|
9.6
|
10.6
|
11.6
|
|
Static Top, min:sec
|
3:17
|
3:03
|
2:47
|
4:04
|
6:52
|
| TEST
PARAMETERS |
| Guar Base: |
2% KCl |
| Polymer Concentration: |
40 lb/1,000 gal |
| pH, adjusted with NaOH: |
7.6 - 11.6 |
| Temperature: |
24.4°C (76°F) |
| Viscosity, 300 rpm: |
34 cP |
|
PATENT PENDING
|
|