Product Sheet CN ULTRACAP PLUS Advanced Encapsulating Shale Inhibitor
Limits dilution rates and low-gravity solids loading by preventing clay solids from dispersing into the mud system.
ULTRACAP
Encapsulating shale inhibitor
ULTRACAP encapsulating shale inhibitor provides minimal viscosity contribution and can enhance filtration properties. Due to the low molecular weight of this polymer, the mixing process requires less shear than polymers with higher molecular weights. The resulting fluid passes through fine shaker screens without blinding.
How it works
ULTRACAP inhibitor provides excellent cuttings encapsulation by adsorbing onto the clay surfaces and forming a protective film that prevents cuttings from sticking to each other or to the shaker screens. This inhibitor limits dilution rates and low-gravity solids loading by preventing clay solids from dispersing into the mud system.
Applications
It is used in ULTRADRIL high-performance water-based drilling fluid system based on fresh- and saline-water environments but should not be used in calcium brines.
| Typical Physical Properties |
ULTRACAP Inhibitor | ULTRACAP PLUS Inhibitor |
| Physical appearance |
Solid white flakes |
White powder |
| pH |
2.5 to 6.0 (0.05% solution) |
~6.0 (0.1% solution) |
| Typical concentrations |
1.5 to 3.0 lb/bbl [4.28 to 8.56 kg/m3] |
0.5 to 4 lb/bbl [1.43 to 11.41 kg/m3] |
| Premix concentrations |
<4 to 5 lb/bbl [11.4 to 14.3 kg/m3] |
<4 to 5 lb/bbl [11.4 to 14.3 kg/m3] |
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