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Sulfonated Phenolic Resin

Sulfonated Phenolic Resin

Basic Information

CAS No.: 70892‑67‑0
Sulfonated phenolic resin is a cation exchange resin with good mechanical strength and resistance to olefinic acids. It is mainly used as an oilfield drilling fluid treatment agent and a hard water softener.

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Product Details


Basic Information

Product NameSulfonated Phenolic Resin
Main CompositionSulfonated condensation polymer of phenol and formaldehyde
Temperature Resistance180~220℃
Main FunctionsHigh temperature high pressure fluid loss control, salt-calcium resistance, wellbore stabilization
Applicable RangeDeep well, ultra-deep well and salt-gypsum layer water-based drilling fluid
CAS No.Composite mixture, no exclusive CAS number


Physical and Chemical Properties

AppearanceReddish brown flowing powder
Moisture Content≤10.0%
Water Insoluble Matter≤5.0%
pH Value (1% aqueous solution)9.0~11.0
SolubilityEasily soluble in alkaline water
Thermal StabilityExcellent high temperature ageing resistance


Core Performance and Chemical Characteristics

High Temperature ResistanceStable molecular structure, keep good fluid loss control at ultra-high temperature
Strong Salt & Calcium ResistanceAdapt to saturated salt water and high calcium mud system
Efficient Fluid Loss ReductionForm compact thin mud cake and lower HTHP filtration loss
Little Viscosity IncreaseHas minor influence on drilling fluid rheology
Good CompatibilityMatches well with various drilling fluid additives
Anti-collapse EffectAssist to inhibit shale hydration expansion


Safety Information   

ToxicityLow toxicity
Health HazardDust irritates eyes, skin and respiratory tract
Protective MeasuresWear dust mask, goggles and rubber gloves
Storage ConditionSeal and store in cool dry place, keep away from strong acid
TransportationOrdinary industrial chemicals, avoid dampness
First AidFlush contact parts with plenty of clean water
Waste DisposalDispose in accordance with environmental protection regulations


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