Sodium Asphalt Sulfonate (SAS)

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Sodium Asphalt Sulfonate (SAS)

Sodium Asphalt Sulfonate(SAS) is black powder that is the poly-anionic modified Sulfated Asphalt.

Feature

SAS is partially water soluble and water dispersible; SAS is highly sulfonated by unique process which leads to partially oil soluble as well. So SAS can be used both in water-based and oil-based drilling fluid system.

Function

SAS can plug stratum cracks, prevent shale collapse and inhibit shale hydration. It reduces high temperature fluid loss, lowers torque & drag, and stabilizes shale formation & aids oil emulsification.

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Product Specification
Sodium Asphalt Sulfonate (SAS)

ITEM

STANDARD

SAP 1001

SAP 1002

Appearance

Black powder

Moisture content

15% max

Water solubility

70% min

65% min

Oil solubility

25% min

High Temp/Pressure Loss

30% max

25% max

PH value

6-9

8-10


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