Properties & Applications & PackagesInquiry

Properoties:

No	Test Items		Specifications
1	Appearance		White free flowing powder
2	PH Value		7 to 8
3	Moisture, %		≤10
4	Bulk Density, g/cm³		0.5-0.75
5	Water Solubility		Soluble
6	Acid Solubility		Soluble
7	Suspension
	API Filtration Loss	In 40g/L salt water, ml	≤10
		In saturated salt water, ml	≤10
	Apparent Viscosity at 600 r/min	In 40g/L salt water, mPa·s	≤18
		In saturated water, mPa·s	≤20
8	Sieve Residue in 2000μm		No residue

Applications:

1. Drilling Fluids:

- Filtration Control: API-grade modified starch is used to control filtration in water-based drilling fluids, ranging from fresh to salt-saturated waters. This helps in reducing fluid loss and maintaining the stability of the drilling fluid.

- Shale Inhibition: It possesses shale inhibitive characteristics, which help in stabilizing the wellbore and preventing shale from swelling or collapsing.

- Thermal Stability: This modified starch exhibits high thermal stability, withstanding temperatures up to 150°C, making it suitable for high-temperature drilling operations.

2. Enhanced Drilling Performance:

- Suspension Capability: It has good suspension capabilities, ensuring that cuttings are effectively carried away from the drilling bit, thus improving drilling efficiency.

- Fluid Loss Control: The modified starch helps in controlling fluid loss, which is crucial for maintaining the hydrostatic pressure in the wellbore and preventing formation damage.

3. Environmental Compatibility:

- Biodegradability: Some API-grade modified starches are designed to be biodegradable, which is beneficial for minimizing environmental impact in drilling operations.

4. Customizable Formulations:

- Versatility: The modified starch can be formulated to meet specific drilling conditions and requirements, making it a versatile additive for various drilling fluid systems.

Modified Starch , API Grade