Mica

Mica

L o s t C i r c u l a t i o n M a t e r i a l

DESCRIPTION

Flake mica is obtained through a special processing of mica-bearing rocks. The flake structure of mica
enables effective sealing of both porous and fractured formations.
Mica possesses unique physical properties. Its layered flakes are flat, flexible, transparent to opaque,
resilient, dielectric, chemically inert, insulating, lightweight, and hydrophilic.
Three grades of mica are available.

APPLICATION

Mica fine is often used as a preventive measure to avoid small amounts mud losses. For larger circulation
losses, medium and coarse mica grades are recommended.

DOSAGE

The dosage depends on the severity of losses and formation type and typically ranges from: 8 – 24 kg/m³

PROPERTIES

Sieve Analysis

Fine Grade – Fine Flakes
0.2 – 0.8 mm
Medium Grade – Medium Flakes
0.8 – 2.0 mm
Coarse Grade – Coarse Flakes
2.0 – 4.7 mm
SieveRetained (%)SieveRetained (%)SieveRetained (%)
20 mesh< 54 mesh04 mesh0
20–40 mesh40 ± 1510 mesh< 54–10 mesh< 5
40–70 mesh45 ± 1510–20 mesh15 ± 810–20 mesh65 ± 15
70 mesh30 ± 1020 mesh85 ± 1520 mesh25 ± 10
PropertyFineMediumCoarse
AppearanceTransparent to opaque flakesTransparent to opaque flakesTransparent to opaque flakes
Bulk Density (kg/m³)650800700
Mohs Hardness2.72.72.7
Specific Gravity2.92.92.9

PACKAGING

Mica is packed in multi-layer paper bags, 25 kg each, 1000 kg per pallet.

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Order an additional service

We offer a wide range of services, including mud service, selection of a drilling fluid to meet specific requirements, laboratory testing of drilling fluids and recycling of drilling fluids.

Optimize the cost of drilling

By taking care of managing the waste produced during drilling, you can significantly reduce the consumption of consumables.