Product Introduction
Modified starch is a high-performance water-based drilling fluid additive produced from natural starch through chemical modification. It is primarily used to control fluid loss, protect the wellbore, improve filter cake quality, and stabilize drilling fluid properties. Compared to ordinary starch, modified starch offers superior temperature, salt, and contamination resistance, maintaining stable performance in drilling environments ranging from 120°C to 140°C.
The product effectively minimizes filtrate invasion into the formation and forms a thin, impermeable filter cake, thereby reducing wellbore instability and formation damage. It also improves the rheological properties of the drilling fluid, enhancing overall drilling efficiency. Modified starch is highly compatible with various other additives—such as PAC, PHPA, CMC, and SMP—and is widely used in water-based drilling fluid systems for oil, natural gas, shale gas, geothermal, and horizontal wells.
Jinxiang Chemical utilizes high-quality raw materials and mature production processes to ensure consistent product quality; we offer a range of specifications and customized solutions tailored to specific drilling conditions.
Product Features
Excellent fluid loss control performance
Temperature resistance up to 120°C–140°C
Good resistance to salt and calcium
Compatible with various drilling fluid systems
Good biodegradability; eco-friendly
Application Areas
Water-based drilling fluid systems
Shale gas development
Horizontal and directional wells
Deep and medium-deep wells
Product Advantages
Effectively reduces fluid loss and protects the reservoir
Excellent temperature and contamination resistance
Stable product quality with high batch-to-batch consistency
Technical support for drilling fluid applications provided
Packaging and Storage
Packaging: 25 kg kraft paper composite bags, 1000 kg bulk bags; OEM packaging available.
Storage: Store in a cool, dry, and well-ventilated area, away from moisture and direct sunlight. Reseal promptly after opening to prevent moisture absorption from affecting product performance.
FAQ
What is the primary function of modified starch in drilling fluids?
It is primarily used to reduce fluid loss, improve filter cake quality, stabilize the wellbore, and enhance the overall performance of the drilling fluid.
What is the temperature resistance of the modified starch?
This product is suitable for water-based drilling fluid systems operating between 120°C and 140°C, demonstrating good stability in medium-to-high temperature wells.
What other products can modified starch be used with?
It can be used in conjunction with products such as PAC, PHPA, CMC, SMP, and polymeric fluid loss control agents to optimize drilling fluid formulations.
Is custom production available?
Yes. We can provide products in various specifications and offer OEM packaging services tailored to the client’s drilling fluid system, formation conditions, and operational requirements.
Are custom samples available?
Yes. We can provide free samples for testing and offer technical support based on specific on-site conditions.
