SULPHONATED ASPHALT

Sulphonated Asphalt is a chemically modified asphalt containing sulfonic acid groups that improve dispersibility, solubility, and stability in water-based systems.
Sulphonated Asphalt is valued for its sealing, plugging, lubricating, and stabilizing functions in oilfield drilling fluids.
Sulphonated Asphalt is widely used in the petroleum industry as a fluid loss control additive and shale stabilizer.

CAS Number: 68201-32-1 (generic reference)
EC Number: Not assigned
Molecular Formula: Complex mixture of sulphonated hydrocarbons
Molecular Weight: Variable (complex macromolecular structure)

Synonyms: Sulphonated Asphalt, Sulfonated Asphalt, Modified Asphalt, Asphalt Sulfonate, Oilfield Sulphonated Asphalt, Drilling Grade Sulphonated Asphalt, Asphalt Sulfonic Acid Salt, Sulphonated Asphalt, Sulfonated Asphalt, Asphalt Sulfonate, Asphalt Sulphonate, Sodium Sulphonated Asphalt, Sodium Sulfonated Asphalt, Potassium Sulphonated Asphalt, Potassium Sulfonated Asphalt, Calcium Sulphonated Asphalt, Calcium Sulfonated Asphalt, Magnesium Sulphonated Asphalt, Magnesium Sulfonated Asphalt, Asphaltic Sulphonate, Asphaltic Sulfonate, Asphalt Sulphonated Product, Asphalt Sulfonated Product, Sulphonated Asphalt Powder, Sulphonated Asphalt Granules, Sulphonated Asphalt Solution, Sulphonated Asphalt Additive, Sulphonated Asphalt Agent, Sulphonated Asphalt Material, Sulphonated Asphalt Compound, Sulphonated Asphalt Blend, Sulphonated Asphalt Mixture, Sulphonated Asphalt Formulation, Sulphonated Asphalt Preparation, Sulphonated Asphalt Reagent, Sulphonated Asphalt Laboratory Grade, Sulphonated Asphalt Industrial Grade, Sulphonated Asphalt Technical Grade, Sulphonated Asphalt Extra Pure, Sulphonated Asphalt High Purity, Sulphonated Asphalt Pure, Sulphonated Asphalt Certified, Sulphonated Asphalt Research Grade, Sulphonated Asphalt Fine Chemical, Sulphonated Asphalt Specialty Chemical, Sulphonated Asphalt Bulk Chemical, Sulphonated Asphalt Commercial Grade, Sulphonated Asphalt Raw Material, Sulphonated Asphalt Standard, Sulphonated Asphalt Certified Reagent, Sulphonated Asphalt Analytical Standard, Sulphonated Asphalt Laboratory Reagent, Sulphonated Asphalt Water-Soluble, Sulphonated Asphalt Functional Additive, Sulphonated Asphalt Specialty Additive, Sulphonated Asphalt Oilfield Additive, Sulphonated Asphalt Drilling Additive, Sulphonated Asphalt Drilling Mud Additive, Sulphonated Asphalt Mud Conditioner, Sulphonated Asphalt Lubricant, Sulphonated Asphalt Sealing Agent, Sulphonated Asphalt Loss Circulation Additive, Sulphonated Asphalt Fluid Loss Control Agent, Sulphonated Asphalt Shale Inhibitor, Sulphonated Asphalt Filtration Control Agent, Sulphonated Asphalt Drilling Fluid Chemical

APPLICATIONS

Sulphonated Asphalt is used in oil and gas drilling.
Sulphonated Asphalt reduces fluid loss in drilling muds.
Sulphonated Asphalt stabilizes shales by sealing microfractures and pores.

Sulphonated Asphalt is applied in high-temperature drilling operations.
Sulphonated Asphalt withstands thermal degradation up to 200°C.
Sulphonated Asphalt maintains drilling fluid stability in deep wells.

Sulphonated Asphalt is used as a lubricating additive.
Sulphonated Asphalt reduces torque and drag in drilling strings.
Sulphonated Asphalt improves drilling efficiency and reduces equipment wear.

Sulphonated Asphalt is employed in cementing operations.
Sulphonated Asphalt enhances bonding between cement and casing.
Sulphonated Asphalt prevents gas migration in cement slurries.

Sulphonated Asphalt is included in wellbore strengthening systems.
Sulphonated Asphalt plugs permeable zones and fractures.
Sulphonated Asphalt minimizes lost circulation events.

Sulphonated Asphalt is used in water-based muds.
Sulphonated Asphalt disperses easily without precipitation.
Sulphonated Asphalt is compatible with lignosulfonates and polymers.

Sulphonated Asphalt is applied in reservoir drilling fluids.
Sulphonated Asphalt prevents invasion of filtrates into formations.
Sulphonated Asphalt reduces the risk of formation damage.

Sulphonated Asphalt is used in drilling fluids.
Sulphonated Asphalt reduces fluid loss in water-based muds.
Sulphonated Asphalt stabilizes shale formations during drilling.

Sulphonated Asphalt is applied in oil well cementing.
Sulphonated Asphalt minimizes water invasion into formations.
Sulphonated Asphalt enhances bonding of cement to casing.

Sulphonated Asphalt is used in high-temperature drilling operations.
Sulphonated Asphalt maintains stability under extreme heat.
Sulphonated Asphalt reduces thermal degradation of drilling fluids.

Sulphonated Asphalt is incorporated in inhibitive drilling systems.
Sulphonated Asphalt prevents swelling of water-sensitive clays.
Sulphonated Asphalt improves wellbore stability.

Sulphonated Asphalt is used in reservoir drilling fluids.
Sulphonated Asphalt reduces permeability plugging.
Sulphonated Asphalt helps minimize formation damage.

Sulphonated Asphalt is applied in corrosion control.
Sulphonated Asphalt protects drill pipes from corrosive environments.
Sulphonated Asphalt enhances longevity of downhole equipment.

Sulphonated Asphalt is employed in lost circulation control.
Sulphonated Asphalt seals microfractures in formations.
Sulphonated Asphalt reduces loss of drilling fluids to porous zones.

Sulphonated Asphalt is used in potassium-based mud systems.
Sulphonated Asphalt works synergistically with KCl in inhibitive muds.
Sulphonated Asphalt supports drilling in reactive shale zones.

Sulphonated Asphalt is applied in water-based mud formulations.
Sulphonated Asphalt improves rheological properties of muds.
Sulphonated Asphalt enhances lubricity and reduces torque.

Sulphonated Asphalt is used in oil-based mud formulations.
Sulphonated Asphalt is compatible with synthetic and mineral oil bases.
Sulphonated Asphalt enhances thermal stability of invert emulsions.

DESCRIPTION

Sulphonated Asphalt is a dark brown to black powder or granular material.
Sulphonated Asphalt has a mild asphalt-like odor.
Sulphonated Asphalt is readily dispersible in water, forming stable suspensions.

Sulphonated Asphalt contains sulfonic acid salts that improve solubility.
It forms thin, resilient films that seal porous formations.
Sulphonated Asphalt increases wellbore stability by inhibiting shale hydration and swelling.

Sulphonated Asphalt is non-toxic and environmentally safe at controlled levels.
Sulphonated Asphalt is compatible with freshwater, seawater, and brine-based drilling fluids.
Sulphonated Asphalt provides both chemical inhibition and physical sealing action.

PROPERTIES

Chemical Nature: Sulphonated asphaltic hydrocarbons
Appearance: Dark brown to black powder or granules
Odor: Mild asphaltic odor
Density: ~1.0–1.2 g/cm³
Melting Point: Softening at ~120–150°C
Boiling Point: Not applicable (complex mixture)
Solubility: Dispersible in water, soluble in alkaline medium
pH (1% solution): ~8–10 (alkaline salts form)
Thermal Stability: Effective up to 200°C
Storage Temperature: Store in cool, dry conditions away from moisture
Chemical Stability: Stable under recommended handling conditions

FIRST AID

Inhalation:
Move person to fresh air if dust is inhaled.
Seek medical attention if respiratory irritation occurs.

Skin Contact:
Wash thoroughly with soap and water.
Seek medical advice if irritation develops.

Eye Contact:
Flush with water for at least 15 minutes.
Seek medical attention if irritation persists.

Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek medical advice if large quantities are swallowed.

Note to Physicians:
Treat symptomatically; no specific antidote required.

HANDLING AND STORAGE

Handling:
Avoid creating dust during handling.
Wear protective gloves, goggles, and dust masks in industrial environments.
Wash hands after handling.

Storage:
Store in tightly sealed bags or containers in a cool, dry area.
Protect from moisture and direct sunlight.
Keep away from strong oxidizers.

Spill and Leak Procedures:
Sweep or vacuum carefully to minimize dust.
Collect into suitable containers for reuse or disposal.
Wash spill area with water.