Hydroxypropyl Starch Ether (HPS) for Oil Drilling | Fluid Loss Control & HPHT Stability

InnoNew® Hydroxypropyl starch ether (HPS) is a high-performance, non-ionic modified starch ether specifically engineered for oilfield drilling fluid systems. As a renewable bio-based additive, HPS for oil drilling delivers exceptional fluid loss control, rapid viscosity development, and outstanding borehole stability – even in high-pressure high-temperature (HPHT) environments.
At Hebei InnoNew Material Technology Co., Ltd., we produce premium oil-drilling-grade hydroxypropyl starch ether that outperforms traditional starches and works synergistically with HEC hydroxyethyl cellulose to create balanced, cost-effective drilling fluid formulations.
Key Functions of HPS in Oil Drilling Fluids
- Superior Fluid Loss Control – Forms a thin, flexible, low-permeability filter cake that dramatically reduces filtrate invasion into formations.
- Excellent Rheology Modification – Provides pseudoplastic flow behavior for optimal hole cleaning and cuttings suspension.
- Borehole Stability Enhancement – Inhibits shale hydration and prevents sloughing in reactive formations.
- Thermal & Salinity Resistance – Maintains performance in HPHT wells up to 150°C and high-salinity or seawater-based systems.
- Eco-Friendly & Biodegradable – 100% derived from natural starch, helping operators meet stringent ESG requirements.
Applications of Hydroxypropyl Starch Ether in Oil Drilling
- Water-based drilling fluids
- HPHT drilling operations
- Horizontal and extended-reach drilling
- Shale gas and complex geological formations
- Completion and workover fluids
- Eco-compliant green drilling mud systems
Technical Advantages of Our HPS for Oil Drilling
- 40-60% lower fluid loss compared to conventional starches
- Rapid hydration and easy dispersion without fisheyes
- Low dosage efficiency (0.5–2.0 lb/bbl) reduces overall mud costs
- Excellent compatibility with HEC hydroxyethyl cellulose, PAC, xanthan gum and other additives
- Batch-to-batch consistency ensured by advanced etherification technology
- Biodegradable within 28 days – non-toxic to marine life
Why Choose Hebei InnoNew’s Hydroxypropyl Starch Ether for Oil Drilling
As a trusted hydroxypropyl starch ether manufacturer in China, InnoNew stands out with:
- Proprietary high-substitution etherification process for superior HPHT stability
- ISO 9001 & API-compliant testing in simulated downhole conditions
- Custom oilfield grades tailored to your well profile (high-temp, high-salinity, low-toxicity)
- 50,000+ tons annual capacity with fast global delivery (7–14 days)
- Full technical support including free mud lab testing and on-site formulation guidance
Our HPS is the perfect complement to our HEC Hydroxyethyl Cellulose for Oil Drilling – together they deliver balanced viscosity, fluid loss control and formation protection that synthetic polymers cannot match.

FAQ
1. What is hydroxypropyl starch ether used for in oil drilling? HPS acts as a dual-function additive providing both fluid loss control and rheology modification in water-based drilling fluids, improving borehole stability and reducing non-productive time.
2. Can HPS be used together with HEC hydroxyethyl cellulose? Yes! Our HPS and HEC for oil drilling work synergistically. HEC provides primary viscosity while HPS enhances fluid loss control and filter cake quality – a proven combination that lowers total polymer consumption by up to 30%.
3. Is HPS suitable for high-temperature HPHT wells? Absolutely. InnoNew’s oil-drilling-grade HPS maintains excellent performance at temperatures up to 150°C, far exceeding conventional starch ethers.
4. How does HPS compare to PAC or CMC in drilling fluids? HPS offers better biodegradability and cost efficiency while delivering comparable fluid loss control. It is frequently used alongside HEC for optimal rheology and filtration balance.
5. Do you supply other drilling fluid additives? Yes. We provide a complete range of high-performance oilfield chemicals, including HEC Hydroxyethyl Cellulose, CMC, PAC and tailored solutions for your specific drilling challenges.
Ready to Optimize Your Drilling Fluid Performance?
Switch to InnoNew’s hydroxypropyl starch ether (HPS) for oil drilling and experience unmatched fluid loss control, borehole stability and cost savings.
Contact Hebei InnoNew Material Technology Co., Ltd. today for technical data sheets, free samples, or custom formulation support.
Email: chris@innonew-material.com
WhatsApp: +86 17736063980
Website: www.innonew-material.com
