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Application: PAC is for use in solids-laden, water-based drilling fluids, which can effectively reduces the fitration rate of many water-based drilling fluids, without causing signifcant increase in viscosity or gel strengths.
Item | Indicators | |
PAC-HV | PAC-LV | |
Appearance | White or slight yellow free flowing powder | White or slight yellow free flowing powder |
API fluid loss, ml | ||
0.57% ( 2ppb) | ≤ 20 | ≤ 20 |
0.86% (3ppb) | ≤ 15 | ≤ 15 |
1.14% (4ppb) | ≤10 | ≤10 |
Yp value | ||
0.57% (2ppb) | ≥ 2.4pa (5lb/100ft2) | ≤0.5pa (1lb/100ft2) |
0.86% (3ppb) | ≥9.6pa (20lb/100ft2) | ≤0.5pa (1lb/100ft2) |
1.14% (4ppb) | ≥19.2pa (40lb/100ft2) | ≤0.5pa (1lb/100ft2) |
Polyanionic cellulose