Fast Dissolving Guar (FDG) is an excellent guar gum powder that features fast dissolving, high viscosity, super fineness, easy dispersion and low residues. It is specifically developed and designed for drilling and fracturing of oil, natural gas, shale gas, CBM, oil shale and tight sandstone gas and oil sand etc. It has outstanding solubility and viscosity development efficiency.
Fast dissolving, 70% dissolved within 3 minutes;
Fast viscosity development, 35 CPS above within 3 minutes
Low water insolubles less than 8%
Suitable for large scale fracturing operations
Application / Models
The viscosity of FDG-based frac fluid can be easily reduced by using enzyme or oxidants. The degree of viscosity reduction depends on (i) type and concentration of degradants; (ii) time; (iii) temperature. Viscosity reduction will cause the fractures to be narrow but extend to far distance from the borehole, increasing the production rate of the oil/gas well.
FDG is soluble in cold water. High speed agitator or dissolution station should be provided to prevent coagulation and lumping. It has excellent dissolvability and can be used after agitating 3 minutes. The maximum viscosity will be achieved after 1 hour. In case the hot water is used, the dissolution will be accelerated and the desired viscosity will be satisfied within shorter time.
Storage and Stability
It is recommended FDG should be stored in dry and covered cool place. In powder form, it can be stored for a long time as long as the storage conditions are met. After 6 months of storage, its viscosity may be decreased.
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