HT Shale Inhibition Polymer SHN-FM301 serves as a specialized drilling fluid additive targeting engineers and procurement managers in oil and gas extraction. This product, developed by a recognized polyacrylamide manufacturer, is intended to improve wellbore stability in reactive shale formations. Users benefit from its ability to reduce cuttings dispersion and clay swelling, mitigating risks such as stuck pipes and hole instability. The polymer’s compatibility with freshwater and saturated saltwater slurries ensures its adaptability across various drilling fluid formulations, making it a reliable component for demanding operational programs.
This polyacrylamide polymer is characterized by a high molecular weight, with intrinsic viscosity rates ≥6 (100 ml/g), confirming its effective polymer chain length to form a protective film on drilling surfaces. The product is delivered as polyacrylamide powder or granules with purity levels ≥85% and moisture content ≤10%. It maintains operational integrity at temperatures exceeding 180°C, exhibiting core liner expansion reduction rates of ≥45%. Its potassium content ≥11% and pH range of 8.0 to 9.0 support shale inhibition and filtration loss control, making it measurable and consistent in performance for industrial use.
SHN-FM301 is applicable in drilling environments requiring high-temperature shale inhibition, including horizontal directional drilling and water well drilling in reactive shale and clay formations. The polymer improves cuttings encapsulation and stabilizes borehole walls, supporting continuous drilling operations without non-productive downtime. Mining, tunneling, and reactive formation drilling benefit from its rheological stability and filtration resistance, especially in fluid systems managed by drilling engineers seeking consistent field results and operational cost reduction.
The product’s molecular design incorporates a high degree of polymerization ensuring robust film formation around drill pipes and borehole walls. This design facilitates seamless incorporation into drilling fluid programs, supported by consistent batch quality facilitated by its polyacrylamide powder form. As a polyacrylamide supplier, the company ensures flexibility to accommodate variable drilling fluid types, including both freshwater and saline systems. The polymer’s potassium-rich composition enhances its ability to act as a clay swelling inhibitor while maintaining filtration control within established drilling fluid parameters.
HT Shale Inhibition Polymer SHN-FM301 delivers measurable performance benefits such as reduced clay hydration and cuttings dispersion, vital for maintaining borehole integrity in harsh drilling conditions. Its thermal stability above 180°C supports extended application in deep wells with reactive formations. From a usability perspective, the polymer’s powder form allows for standardized dosing and simplified logistics, reducing handling complications on-site. These attributes make it a favored choice among drilling engineers and procurement specialists seeking dependable shale inhibition and rheological support.
SHN-FM301 is a high molecular weight, powdered polymer which has been developed to improve cuttings encapsulation as well as helping to stabilise the formation. SHN-FM301 forms a protective polymer film on the drill pipe and bit as well as on the walls of the bore hole which helps to provide lubrication when drilling in
troublesome formations. It is ideally suited for use in horizontal directional drilling, water well, mining and tunnelling applications.
In oilfield drilling environments involving reactive shale formations, SHN-FM301 functions as a critical polymer additive to maintain hole stability under elevated temperatures exceeding 180°C. Its role is to form a protective polymer layer on borehole walls and drill pipes, reducing clay swelling and cuttings dispersion. This ensures less risk of stuck pipe incidents and improved drilling efficiency. Integrated into freshwater and saturated saltwater slurry systems, this polyacrylamide polymer complies with operational standards requiring robust rheology and filtration loss control to optimize wellbore conditions.
During horizontal directional drilling projects, where formations exhibit a mix of reactive shale and clay minerals, SHN-FM301 acts to enhance wellbore integrity and minimize instability. The polymer’s technical formulation as a polyacrylamide powder allows precise incorporation into drilling fluid mix designs, delivering consistent inhibition of shale hydration. This supports continuous drilling operations by reducing operational downtime linked to borehole sloughing or cuttings dispersion. Its compatibility with variable fluid qualities enables multiple drilling crews to maintain performance uniformity across extended project timelines.


| Item | Specification |
| Appearance | White Powder or Granule |
| Purity % | ≥85% |
| Moisture % | ≤10% |
| Ignition Residue % | ≤25% |
| Viscosity (0.5% Solution) | 20-25 mPa.s |
| Core Liner Expansion Reduction Rate: | ≥45% |
| Chlorine Ion Content % | ≤1.0% |
| Intrinsic Viscosity(100ml/g) | ≥6 |
| Potassium Content % | ≥11% |
| PH Value | 8.0-9.0 |





FAQ
What types of drilling fluids is SHN-FM301 compatible with?
Our polyacrylamide polymer SHN-FM301 works effectively with both freshwater and saturated saltwater slurry systems. We recommend dosages of 0.1%–0.5% for freshwater and 0.8%–1.2% for saltwater slurries to optimize shale inhibition and maintain stable fluid viscosity during drilling.
Can your polymer be integrated into existing drilling fluid programs?
Yes, SHN-FM301 is designed for easy integration into current drilling fluid systems. Its compatibility with various fluid types, including freshwater and saturated brine, allows us to support customized formulations that meet operational needs while leveraging the benefits of this advanced polyacrylamide.
How does SHN-FM301 improve wellbore stability in high-temperature conditions?
We formulated SHN-FM301 to perform reliably at temperatures ≥180°C, where it forms a protective film on borehole walls and drill pipes. This film reduces cuttings dispersion and clay swelling, effectively minimizing shale hydration and sloughing that can cause stuck pipe issues and hole instability.
What storage conditions do you recommend to maintain SHN-FM301 quality?
To preserve polymer purity and performance, we advise storing SHN-FM301 in a cool, dry environment, protected from moisture exposure. Proper storage helps maintain consistent batch quality and ensures that the polyacrylamide powder performs optimally when applied in the field.