Deformable & Composite LCM
Expanding Lost Circulation Material
A mineral-based expanding lost circulation material that swells rapidly on contact with water — to three times its original volume or more — forming a dense, high-strength sealing barrier. It treats permeable, micro-fracture and pore-type losses, is compatible with all water-based muds, and does not alter mud rheology.
APPLICATIONS
Application scenarios
- 01Pore-type, permeable and micro-fracture (≤3 mm) losses
- 02Seepage from wellbore instability in soft formations, sands and shales
- 03Oil, gas and water well drilling
PERFORMANCE
Performance indicators
| Item | Specification |
|---|---|
| Appearance | Solid Particles |
| Loss on Drying % | ≤15 |
| Expansion Ratio × | ≥3 |
| Sealing Fluid Loss (30 min) ,mL | ≤35 |
| Organic Chlorine Content % | 0 |
USAGE
Usage
Add directly into the drilling fluid — no special equipment required; typical dosage is 3.0%-10.0% by weight depending on loss severity. Allow sufficient circulation time for the material to swell and seal.
PACKAGING
Packaging & delivery
25 kg/bag standard; export packaging available on request.
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Expanding Lost Circulation Material
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