Description
DSP-1 sulfonate copolymer is a pale yellow powder produced through solution polymerization using a molecular structure design concept and optimized selection of high-temperature and salt-resistant monomers. The large volume of the repeating monomer units introduced in DSP-1 drilling fluid effectively increases steric hindrance, thereby improving the rigidity of the copolymer molecules and enhancing its resistance to temperature, salt, and shear stress, as well as its filtration loss reduction performance.
Application
Sulfonate copolymer filtration deducer DSP-1 significantly reduces water loss under HTHP by constructing a dense filter cake on the wellbore, increasing liquid viscosity, and sealing micro-fractures, thereby improving wellbore stability. It also exhibits excellent resistance to temperature and salt/calcium contamination, making it suitable for deep and ultra-deep well drilling.
Performance
The specific functions of DSP-1 copolymer filtration reducer in natural gas and oil drilling include:
- Significantly reducing filtration loss: The polymer chains in the sulfonate copolymer can be effectively adsorbed on the surface of clay particles and block micropores through the hydration membrane to form a dense filter cake with low permeability.
- Excellent temperature and salt resistance: The sulfonic acid groups in the molecular structure have strong hydrophilicity and stability, and do not degrade or flocculate in high-temperature and high-salt environments (such as seawater), maintaining the rheological stability of the drilling mud.
- Improving mud cake quality: Sulfonate copolymer also has a certain degree of inhibition, which can reduce the expansion and collapse caused by water entering shale formations.
- Improving rheological properties: This type of copolymer has good thickening and rheological regulation effects in freshwater or brine drilling mud.
Technical Requirements
SY/T 5241-2019
| Item | Specification |
| Appearance | White or pale yellow powder |
| Moisture,% | ≤10 |
| Fineness(residue on 0.59mm sieve),% | ≤10 |
| Water-insoluble matter,% | ≤10 |
| pH value(1% aqueous solution) | 7~11 |
| API fluid loss at room temperature,mL | ≤10 |
| Yield point,Pa | ≤10 |
| Apparent viscosity,mPa·s | ≤35 |
| Plastic viscosity,mPa·s | ≤25 |
| API fluid loss after hot rolling(180℃*16h),mL | ≤12 |
Please note: Technical specifications can be customized.
Packaging & Shipping
Packaging: Packaging is provided in 25kg three-in-one kraft paper bags or paper-plastic composite bags. Custom packaging is also available upon request.
Storage and Transportation:When storing, take precautions against heat and moisture, and the stacking layer should not exceed 20 layers.
Shelf Life: 24 months
Notes
Avoid contact with eyes, skin, and clothing; if contact occurs, rinse thoroughly with plenty of water. Keep away from fire.For handling methods and hazard data, please refer to the Safety Data Sheet (MSDS).
Why Choose Us
Technology + Sales” Dual-Track Service Support. Whether it’s initial formulation design or on-site adjustments later on, our technical team is with you every step.
Annual production capacity of up to 150,000 tons; Rigorous quality control system; End-to-end monitoring; Ensure that no substandard products leave the factory.
Performance, packaging, and shipping can be customized according to your requirements.
Shorter lead time and on-time delivery to meet your fast and urgent needs.
