Prima-Seal (Medium and Coarse)

Prima-Seal is a lost circulation material, which may be used by itself or in conjunction with other lost circulation additives.

Generally, its use may be based on the following criteria:

• Prima-Seal Coarse – seals large fractures, requires large jets (16 mm or larger) or an open watercourse.
• Prima-Seal Medium – seals fine fractures and porous zones, should be used with jets larger than 10.3 mm.

Depending on the severity, the total lost circulation material concentration may be as high as 75.0 kg/m³ of whole mud.

Prima-Seal can be mixed directly into a viscous mud with good agitation. Larger sizes will plug shale shaker screens. If re-circulation is necessary, the shale shaker should be by-passed.

However, bypassing the shaker could result in plugged jets. It is advisable to use a dust mask and eye protection while mixing all powdered products.

Appearance: Yellow/brown particles

Specific Gravity: 0.9 – 1.2

Type: Blend

Solubility: Insoluble

pH: 6.8 – 8.5

WHMIS: Not controlled

TDG: Not regulated

Packaging: 1.45 ft³ sack