UTtrol-Ⅲ is a high degree of substitution (DS) hydroxypropyl starch produced through special processing and modification. It is a high-efficiency, environmentally friendly fluid loss additive widely used in oilfield drilling fluids, completion fluids, and workover fluids.
UTtrol-Ⅲ has good compatibility with other drilling fluid additives and can be widely used in various water-based drilling fluid systems.
Due to its special molecular structure, when used in combination with xanthan gum, UTtrol-Ⅲ can provide excellent low-shear-rate viscosity for the drilling fluid system.
This unique polymer combination exhibits a synergistic effect, improving the static suspension capacity of the drilling fluid while delivering excellent pseudoplastic fluid behavior during circulation.
UTtrol-Ⅲ is readily biodegradable and environmentally friendly. It reduces fluid loss while minimizing formation damage to reservoirs, meeting operational requirements for offshore and environmentally sensitive areas.
UTtrol-Ⅲ with the following specifications:
Item | Specification | |
Appearance | White to light yellow powder | |
Moisture Content, % | 12 max. | |
Particle size, % on top of 40 mesh screen | 3 max. | |
LSRV, cps Tested by Brookfield LVDV II+ @0.3rpm with a #2 LV Spindle | After hot rolling at 150℉(66℃) for 4 hours, cool to 77℉(25℃), then test | 27500 min. |
HTHP Fluid Loss, ml | 250℉(121℃) with 500 psi for 30 minutes | 20 max. |
