Modified Starch API - STARCH
Description
Modified Starch is an effective and economical fluid loss agent in water based drilling fluids, which is a starch derivative. It is not bacterial degradation, stable to above 120℃, environmentally acceptable and non-toxic. Modified Starch can produce a thin, slick, tough filter cake and promotes faster penetration rates with reducer friction. It can be used in all kinds of drilling fluid systems.
Quality Specification
Appearance | Light yellow powder |
Fluid loss in 4% salt water | ≤10 cm3 |
Appearance viscosity in 4% salt water | ≤9 cp |
Fluid loss in saturated salt water | ≤10 cm3 |
Appearance viscosity in saturated salt water | ≤10 cp |
Residue (2000 μm) | 0 % |
Application
It may be less effective in high levels of Mg2+ and Ca2+ ions and it is recommended that all “high hardness” be treated out prior to drilling starch. The normal dosage is 0.3-0.5 percentages.
Package
The product is usually kept in a compound or multi-wall bags with each net weight 25 KG. Special packages are available based on customers' requirements.
Storage
The product should be kept in shady, dry and ventilated warehouse with environment temperature controlled within 122F and relative humidity 50%. It should be prevented from sun and rain, and positioned in some place away from heat and fire; the recommendation for bag piles is no more than 8 layers.
Safety
Avoid contacting with eyes, skin and clothing. Otherwise, wash with a flush of water. Refer to Material Safety Data Sheet (MSDS) for complete handling and hazard data.