Fracsal Waterbase crosslinking additive consists of a specifically sized, sparingly-soluble borate crosslinking agent suspended an aqueous, crosslink modifier solution. The standard concentration for Fracsal Waterbase is 1 to 3 gal per 1,000 gal of fracturing fluid with crosslink times ranging from 1 to 8.5 minutes depending upon the pH, temperature, and type of polymer-based fracturing fluid system. Fracsal Waterbase packaging can be customized to meet specific requirements.
| Appearance: | Tan Liquid | |
| Specific Gravity: | 1.26 - 1.28 | |
| Pour Point, ASTM D97: | 3°C (37.4°F) | |
| Solubility: | Water | |
| LC50, 96-hour: | 1,000,000 ppm | |
| Chemical Oxygen Demand: | 65.2 mg/L | |
| Biological Oxygen Demand: | <2.0 mg/L | |
| BTEX, S.W. 8260: | Below detection limit of 1 ppb | |
| D50 - Microtox Testing: |
| Product | Test | EC20 | EC50 | PASS/FAIL |
|---|---|---|---|---|
| Fracsal Waterbase® | MTX - Threshold MTX - Confirmation @ 145 L/m3 | 45 L/m3 (41 - 49) 76% | 145 L/m3(63 - >191) >91% | not applicable PASS |
|
Product |
pH |
||||
|
7.5 |
8.5 |
9.5 |
10.5 |
11.5 |
|
|
Fracsal Waterbase® |
4:18 |
2:40 |
1:57 |
2:51 |
7:36 |
| 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) |