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Product Information
The Ammonium Salt of Hydrolyzed Polyacrylonitrile (NH4-HPAN) is an anionic polyelectrolyte produced by the hydrolysis of polyacrylonitrile (e.g., from acrylic fiber waste) with ammonia water under high temperature and pressure. It typically appears as a yellow to brown powder or viscous liquid. It serves as a highly effective fluid loss control agent in water-based drilling fluids. Its polymer chains, bearing various functional groups (cyano, carboxyl, amide), adsorb onto clay particles to form a low-permeability, compact filter cake, significantly reducing fluid loss. With good thermal stability, it is a crucial chemical in oilfield operations for deep and ultra-deep wells.
This product can be directly applied to a variety of water-based drillingfluid system, Used as fluid loss agents, anti-sloughing agent, and has theviscosity reduction effect when used together with polyacrylamide potassium.Can be used in conjunction with a variety of treatment agent. Generallyincrease the amount of 0.5-1.5%.
Store it in a dry, cool and vent place. Packaged in a polyethylene-lined Kraft paper sack with an inner plastic bag.Net weight 25kg/sack.
Product Nature
Physical Properties:
· Appearance: Yellow to brown powder or viscous liquid.
· Solubility: Soluble in water, aqueous solution is slightly alkaline.
· Viscosity: Its aqueous solution exhibits certain viscosity.Chemical Properties:
· Polymer: A linear polymer containing various functional groups along its chain, including -CN, -CONH₂, and -COONH₄.
· Temperature Resistance: Possesses good thermal stability, generally effective up to 180°C (356°F) or higher, outperforming its sodium salt counterpart (Na-HPAN).
· Adsorption & Protective Colloid Action: Adsorbs onto drill cuttings and clay particles via hydrogen bonding and ionic bonds, forming a hydrated adsorption layer that acts as a protective colloid and inhibits clay particle aggregation.
· Fluid Loss Control Mechanism: Achieves excellent fluid loss reduction through synergistic effects including increasing filtrate viscosity, reducing filter cake permeability, and protecting clay particles.
· Salt Tolerance: Exhibits certain resistance to salt and calcium contamination.
Product Usage
Drilling Fluid Fluid Loss Reducer (Primary Application): Serves as a primary fluid loss control agent in water-based drilling fluid systems (especially fresh water, brine, and saturated brine systems) for oil and gas well drilling. It effectively controls fluid loss into formations, protects reservoir rocks, and stabilizes the wellbore.
Shale Inhibitor: Possesses some capability to inhibit shale hydration and swelling, aiding in wellbore stability.
Cementing Additive: Can be used as a fluid loss reducer in oil well cement slurries during cementing operations.
Fracturing Fluid Additive: Used in oilfield fracturing fluid systems to help control fluid loss into the formation.
Safety Matters
Health Hazards:
· Low toxicity, but may be irritating to eyes, skin, and respiratory tract, particularly in powder form.
· May produce toxic gases upon thermal decomposition, including hydrogen cyanide (HCN), nitrogen oxides (NOx), and ammonia (NH3).Handling Protection:
· Must handle powder in a well-ventilated area. Wear a dust mask, chemical safety goggles, and chemical-resistant gloves.
· Avoid dust formation. Avoid contact with eyes, skin, and clothing.
· Wash hands and exposed skin thoroughly after handling.Storage & Transportation:
· Store in a cool, dry, well-ventilated warehouse away from direct sunlight.
· Keep containers tightly closed. Protect from moisture (for powder products).
· Store separately from strong oxidizers.Fire Fighting:
· Combustible. Use water, foam, dry chemical, or CO2 to extinguish fire.
· Important Note: Under thermal or fire conditions, this material may decompose, producing highly toxic fumes including hydrogen cyanide (HCN), ammonia (NH3), nitrogen oxides (NOx), and cyanides. Firefighters must wear self-contained breathing apparatus (SCBA) and full protective gear.
FAQ
Q:What are your main products?
A:We specialize in five core areas: general chemicals and food additives, water treatment and disinfection chemicals, oilfield drilling additives, fertilizers and soil conditioners, and solvents and specialty chemicals. We provide one-stop chemical procurement and solutions across multiple industries.
Q:How do you ensure the consistent quality and reliability of your products?
A:Quality is our cornerstone. We are ISO 9001 certified for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety. We implement strict quality control throughout the entire process, from raw material procurement to factory delivery, to ensure that every batch of products meets specifications.
Q:Can you provide customized products or solutions based on our specific needs?
A:Of course. We have a dedicated R&D and technical team dedicated to solving our customers' specific challenges. Whether it's adjusting product formulas, developing specific specifications, or customizing solutions for your processes, we are happy to provide customized services. Please provide your specific requirements and our engineers will work with you.
Q:What kind of technical support and after-sales service do you provide if problems arise?
A:We provide comprehensive technical support and after-sales service. We have a dedicated team to assist with everything from product selection guidance and application support to rapid response to after-sales issues. We promise to provide timely and professional feedback on your inquiries to ensure smooth operations.
Q:What is the minimum order quantity (MOQ) and delivery time?
A:To meet the needs of diverse customers, we offer flexible MOQs. The specific MOQ and delivery time depend on the product type and order size. We will provide you with a detailed quote, MOQ, and estimated delivery time within 24 hours of receiving your detailed inquiry.
Q:Do your products comply with international environmental and safety standards?
A:Yes, compliance is a key aspect of our product design. Our product development and production processes strictly adhere to relevant international and regional regulations. We also actively offer product options that comply with standards such as REACH and RoHS, and provide you with detailed Safety Data Sheets (SDS) to ensure safe and compliant use.
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