Shandong Ecolink Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of anionic polyacrylamide for drilling in China, featured by quality products and good service. If you're going to wholesale high quality anionic polyacrylamide for drilling, welcome to get more information from our factory.
Product Introduction
During oilfield drilling operations, customers often face problems such as wellbore collapse, insufficient cuttings carrying capacity, unstable drilling fluid performance, and high operational risks.
Our anionic polyacrylamide (APAM) dedicated for drilling fluids, by adjusting the rheological properties of drilling fluids and forming a protective structure, can significantly improve cuttings carrying capacity, inhibit clay hydration swelling, reduce fluid loss, and minimize downhole complications such as stuck pipe and well collapse.
This drilling fluid fluid-loss reducer has become a core additive in drilling operations.
Product Overview
Anionic polyacrylamide (APAM) is a high molecular polymer. In drilling fluid systems, it is mainly used as a fluid-loss reducer, thickener, and rheology modifier. By forming a stable structure in drilling fluids, it increases system viscosity and controls fluid loss, thereby improving overall drilling performance.
Our anionic polyacrylamide (APAM) adopts a low-temperature homogeneous polymerization + controllable post-hydrolysis process. Using high-purity acrylamide as the monomer, polymerization is carried out under strictly deoxygenated conditions. It is specially designed for water-based drilling fluid systems as a drilling fluid viscosifier, drilling fluid flocculant, and drilling fluid shale inhibitor.
Product Parameter (specification)
|
Parameter Item |
Technical Specification |
Remarks |
|
Appearance |
White granules or powder |
|
|
Molecular Weight |
5–25 million |
Recommended 10–22 million for drilling applications |
|
Ionic Degree (Hydrolysis Degree) |
10%–40% |
Common range 20%–30% |
|
Solid Content |
≥88%–90% |
|
|
Insoluble Content |
≤0.2% |
|
|
Residual Monomer |
≤0.05%–0.1% |
|
|
Effective pH Range |
5–11 |
Best performance under neutral and alkaline conditions |
|
Dissolution Time |
≤60–90 minutes |
Microbead products can be reduced to 10–15 minutes |
|
Apparent Viscosity |
≥11.5 mPa·s |
|
|
Shear Viscosity Retention |
≥80% |
|
|
Product Form |
Dry powder / Microbead |
25 kg bags |
|
Shelf Life |
2 years |
Store in a cool and dry place |
Complies with ISO quality system and SGS testing standards, suitable for various drilling environments.
Product Advantages
|
Structure / Process / Material |
Performance |
Business Benefits |
|
Ultra-high molecular weight (18–25 million) |
Increase mud viscosity at low concentration |
Reduce chemical cost per ton of mud by 15–20% |
|
Controllable hydrolysis degree (10–30%) |
Selectively flocculate drill cuttings without flocculating bentonite |
Maintain mud system stability and reduce material waste |
|
Strong adsorption molecular chains |
Adsorb onto clay particle surfaces and inhibit hydration swelling |
Reduce wellbore collapse risk and drilling accident rate |
|
Fast dissolution process |
Powder dissolves in 40 minutes, emulsion in 5–8 minutes |
Shorten mud preparation time and improve drilling efficiency |
|
Low fluid loss |
Form dense filter cake and reduce fluid loss |
Protect reservoir and reduce drilling fluid loss |
As a water-based drilling fluid viscosifier, this product can achieve ideal viscosity enhancement at low concentration.
Applications / Solutions
|
Drilling Fluid Type |
Specific Application |
Recommended MW |
Recommended Hydrolysis |
|
Freshwater drilling fluid |
Viscosity enhancement, cuttings carrying, fluid loss reduction |
18–22 million |
10%–15% |
|
Saltwater drilling fluid |
Viscosity enhancement, salt resistance, shale inhibition |
20–25 million |
15%–20% |
|
Polymer drilling fluid |
Main viscosifier, selective flocculation |
20–25 million |
15%–20% |
|
Wellbore stability drilling fluid |
Inhibit shale hydration swelling |
18–22 million |
10%–15% |
|
Waste drilling fluid treatment |
Solid-liquid separation, flocculation destabilization |
15–20 million |
20%–30% |
This salt-resistant polymer for high-salinity drilling fluids shows excellent salt resistance performance in saltwater drilling fluid systems.
|
Formation Type |
Recommended MW |
Recommended Hydrolysis |
Recommended Dosage |
Main Function |
|
Loose sandstone |
18–22 million |
10%–15% |
0.1%–0.3% |
Viscosity enhancement, cuttings carrying, fluid loss reduction |
|
Hydratable mudstone |
20–25 million |
15%–20% |
0.2%–0.4% |
Shale inhibition, wellbore stability |
|
Salt-gypsum layer |
22–25 million |
20%–25% |
0.2%–0.5% |
Salt resistance, viscosity enhancement, fluid loss reduction |
|
Waste mud |
15–20 million |
20%–30% |
10–50 ppm |
Gel breaking flocculation, solid-liquid separation |
As a wellbore stability drilling fluid treatment agent, this product performs particularly well in hydratable mudstone formations. Our APAM can effectively inhibit clay hydration, maintain wellbore stability, and reduce accident occurrence.
Response to Concerns
|
Concern |
Our Solution |
|
Whether applicable to complex formations |
Provide customized models |
|
Whether shear-resistant |
Optimized structure to improve stability |
|
Whether it affects the reservoir |
Control fluid loss to reduce damage |
|
Whether testing is supported |
Provide sample testing |
|
MOQ |
Flexible minimum order |
|
Delivery time |
Stable production capacity guarantee |
|
Technical support |
Provide usage guidance |
|
Certification |
ISO system + SGS testing |
Product Process / Technical Strength
Advanced polymerization and drying processes are adopted to ensure the stability of anionic polyacrylamide:
Precise control of molecular weight and hydrolysis degree
Optimize polymerization reaction to improve molecular chain stability
Control impurity and residual monomer content
Automated production to ensure batch consistency
👉 Core difference: not just "usable", but capable of maintaining stable performance in complex drilling environments.
Frequently Asked Questions (FAQ)
Q: 1. What role does anionic polyacrylamide play in drilling fluids?
A: Anionic polyacrylamide has multiple functions in drilling fluids: viscosity enhancement, fluid loss reduction, flocculation and encapsulation of drill cuttings, inhibition of shale swelling, lubrication and drag reduction, effectively improving drilling fluid performance, ensuring wellbore stability, and improving drilling efficiency.
Q: 2. How to select molecular weight and ionic degree?
A: Molecular Weight: Recommended 10–22 million for drilling fluid applications. High molecular weight products provide better viscosity and encapsulation effects.
Ionic Degree (Hydrolysis Degree): Recommended 20%–30%. Excessively high hydrolysis may affect salt resistance, while too low hydrolysis results in poor water solubility.
Q: 3. What is the recommended dosage?
A: Generally recommended dosage is 0.5–2.0 lb/bbl or 0.5%–2.0% (volume ratio).
The specific dosage should be determined according to formation conditions, drilling fluid system, and performance requirements. Field testing is recommended for optimization.
Q: 4. What is the dissolution speed of the product?
A: Conventional powder products dissolve in about 60 minutes; microbead products dissolve within 10–15 minutes, suitable for on-site continuous mud mixing operations.
Q: 5. Is it suitable for high-salinity drilling fluids?
A: Yes. Anionic polyacrylamide has good stability in monovalent salt environments (NaCl, KCl, etc.), but precipitation may occur in high concentrations of divalent ions (Ca²⁺, Mg²⁺). Compatibility testing is recommended.
Q: 6. What precautions should be taken during use?
A: Powder products are hygroscopic; store in a cool and dry place below 35°C
Dissolution water temperature should not exceed 50°C to prevent thermal degradation
Avoid direct contact with strong oxidants
Stirring speed during dissolution should be controlled at 100–300 rpm to avoid molecular chain breakage caused by high shear
Wear protective equipment during operation; powder becomes slippery when wet, pay attention to anti-slip
Q: 7. What is the shelf life of the product?
A: Powder products have a shelf life of 2 years under cool and dry storage conditions; microbead products can have a shelf life of up to 4 years under recommended storage conditions.
Our Thoughtful Services
Technical Support: Provide full-process technical services including product selection, laboratory testing, and on-site commissioning
Sample Service: Provide free samples to assist customers in laboratory testing and determine optimal product model and dosage
Customized Production: Customize molecular weight, ionic degree, and other parameters according to customer requirements
After-sales Guarantee: Provide on-site technical guidance, track application performance, and respond promptly to customer needs
Stable Supply: Large-scale production with sufficient inventory ensures timely and stable supply
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