FRACSAL ULTRA SC
DESCRIPTION
Fracsal Ultra SC crosslinking additive consists of a specifically sized, sparingly-soluble borate crosslinking agent suspended in a aqueous, crosslink modifier solution. The low pour point of the winterized Fracsal Ultra SC makes this product ideal for use under moderately cold conditions. The standard concentration for Fracsal Ultra SC is 1 to 3 gal per 1,000 gal of fracturing fluid with crosslink times ranging from 1.5 to 7.5 minutes depending upon the pH, temperature, and type of polymer-based fracturing fluid system. Fracsal Ultra SC packaging can be customized to meet specific requirements.
PHYSICAL PROPERTIES AND ENVIRONMENTAL DATA
| Appearance: |
Tan Liquid |
| Specific Gravity: |
1.38 - 1.40 |
| Pour Point, ASTM D97: |
-18°C (-0.4°F) |
| Solubility: |
Water |
| LC50, 96-hour: |
1,000,000 ppm |
| Chemical Oxygen Demand: |
27.8 mg/L |
| Biological Oxygen Demand: |
<2.0 mg/L |
| BTEX, S.W. 8260: |
Below detection limit of 1 ppb |
| D50 - Microtox Testing: |
| Test |
EC20 |
EC50 |
PASS/FAIL |
| MTX - Threshold MTX - Confirmation @ 310 L/m3 |
<53 L/m3 (<53 - 120) 29% (19 - 43) |
310 L/m3 (150 - >430) >91% (56 - >91) |
not applicable PASS |
|
CROSSLINKING TIMES AT VARIOUS pH VALUES
| pH |
7.5 |
8.5 |
9.5 |
10.5 |
11.5 |
| Static Top, min:sec |
4:18 |
2:40 |
1:57 |
2:51 |
7:36 |
|
CROSSLINK TIME TEST PARAMETERS
| Guar Base: |
2% KCl |
| Polymer Concentration: |
40 lb/1,000 gal |
| pH, adjusted with NaOH: |
7.5 - 11.5 |
| Viscosity, 300 rpm: |
38 - 42 cP |
| Crosslinking Additive Concentration: |
1.2 gal/1,000 gal |
| Temperature: |
25°C (77°F) |
|
PATENT PENDING
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