FRACSAL IV
DESCRIPTION
Fracsal IV crosslinking additive consists of a specifically sized, sparingly-soluble borate crosslinking agent suspended in a carrier fluid with an extremely low aromatic content. The standard concentration for Fracsal IV is 1 to 3 gal per 1,000 gal of fracturing fluid with crosslink times ranging from 6 to 9.5 minutes depending upon the pH, temperature, and type of polymer-based fracturing fluid system. Fracsal IV 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: |
-27°C (-0.4°F) |
| Flash Point, ASTM D93: |
108°C (226.4°F) |
| Solubility: |
Dispersible in Water |
| LC50, 96-hour: |
1,000,000 ppm |
| Chemical Oxygen Demand: |
33 mg/L |
| Biological Oxygen Demand: |
13 mg/L |
| BTEX, S.W. 8260: |
Below detection limit of 1 ppb |
| D50 - Microtox Testing: |
| Test |
EC20 |
EC50 |
PASS/FAIL |
| MTX - Threshold MTX - Confirmation @ 228 L/m3 |
83 L/m3 (78 - 89) 32% (20 - 51) |
250 L/m3 (246 - 263) >91% |
not applicable PASS |
CROSSLINK TIMES AT VARIOUS pH VALUES
| pH |
7.5 |
8.5 |
9.5 |
10.5 |
11.5 |
| Static Top, min:sec |
10:55 |
10:38 |
8:37 |
9:58 |
18:41 |
|
CROSSLINK TIME TEST PARAMETERS
| Guar Base: |
2% KCl |
| Polymer Concentration: |
40 lb/1,000 gal |
| pH, adjusted with NaOH: |
7.5 - 10.5 |
| Viscosity, 300 rpm: |
38 - 42 cP |
| Crosslinking Additive Concentration: |
1 gal/1,000 gal |
| Temperature: |
25°C (77°F) |
|
PATENT PENDING
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