UTtrol-Ⅰ is a specially processed, modified nonionic starch that serves as an efficient, environmentally friendly filtrate-loss-control additive, resistant to salt and calcium contamination, for use in drilling, completion, and workover fluids.
By modifying its molecular structure, nonionic starch (UTtrol-Ⅰ), when used together with xanthan gum, enables drilling fluid systems to develop excellent low shear rate viscosity. This unique polymer combination works synergistically to enhance the static suspension cuttings capacity of the fluid while also providing strong pseudoplastic behavior during circulation.
When used in conjunction with suitable bridging agents or weighting materials, UTtrol-Ⅰnot only reduces fluid loss but also minimizes formation damage, making it suitable for drilling through productive reservoirs.
UTtrol-Ⅰ is non-toxic ,environmentally friendly, easier biodegradation, zero chlorine and heavy metals.
Typical physical properties as below:
Item | Specification | Remarks | |
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 #2LV Spindle | After hot rolling at 150℉(66℃) for 4 hours, cool to 77℉(25°C), then test | 27500 min. | All the fluid components and testing apparatus are obtained locally by the QC lab of |
HTHP Fluid Loss, ml | 250℉(121°C) with 500 psi for 30 minutes | 20 max. | |
