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High-efficiency thickener and dehydration reducer SL-II

High-efficiency thickener and dehydration reducer SL-II

Basic Information

CAS No.: 25987-30-8
SL-II is a water-soluble polymer copolymerized from a variety of propylene and vinyl monomers. In drilling fluids, it has multiple functions such as high-efficiency thickening, strong filtration reduction, cuttings coating, and inhibition of shale hydration. It is particularly suitable for drilling operations in high-temperature deep wells and complex salt and gypsum formations.

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Product Details


Basic Information

Product NameSL-II High-efficiency Viscosifying and Fluid Loss Reducer
Chemical CompositionMulti-component copolymer of acrylamide and vinyl functional monomers
Molecular Weight2,000,000 ~ 3,000,000 Dalton
Main FunctionsViscosity increasing, fluid loss control, cuttings coating, shale inhibition
Temperature ResistanceAbove 180℃
Applicable SystemFresh water, seawater and saturated salt water drilling fluid


Physical and Chemical Properties

AppearanceWhite or light yellow powder
Intrinsic Viscosity≥4.0 dL/g
Moisture Content≤10.0%
0.45mm Sieve Residue≤5.0%
SolubilityEasily soluble in water to form viscous liquid
pH Value (1% aqueous solution)7.0 ~ 9.0
Thermal StabilityExcellent stability under high temperature


Core Performance and Chemical Characteristics

High-efficiency Viscosity IncreaseForm network structure to improve rock-carrying capacity obviously
Powerful Fluid Loss ReductionOptimize mud cake and effectively reduce API filtration loss
Cuttings Coating AbilityAdsorb on cuttings surface to prevent hydration and dispersion
Shale Inhibition EffectRestrain shale hydration expansion and wellbore collapse
Salt and Calcium ResistanceStable performance in high salinity and high calcium-magnesium environment
Good CompatibilityCompatible with most common drilling fluid additives


Safety Information

ToxicityNon-toxic and non-corrosive
Health HazardDust may cause slight irritation to eyes and respiratory tract
Protective MeasuresWear dust mask, safety goggles and gloves during operation
Storage ConditionSeal and store in cool, dry and ventilated place
TransportationCommon chemical goods, avoid rain and direct sunlight
First AidRinse skin/eyes with plenty of clean water; move to fresh air if inhaled
Waste DisposalDispose in accordance with local environmental regulations


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