SwellPolymer LCM
Product code RXSOL-81-4160-025
Water soluble polymer for use as Loss Circulation Material in drilling work
Description
RXSOL SwellPolymer LCM is a cross-linked, water-swellable polyacrylamide-based polymer designed for use as a Loss Circulation Material (LCM) in horizontal drilling, HDD and drilling-fluid applications.
The dry polymer rapidly absorbs water and expands to many times its original volume, producing a soft, cohesive and highly swollen polymer mass. When placed into permeable zones, fractures, voids or unconsolidated formations, the swollen material helps bridge, seal and reduce fluid losses.
Unlike conventional water-soluble polyacrylamides, RXSOL SwellPolymer LCM is cross-linked and insoluble in water. It retains its polymeric structure while absorbing and holding large quantities of water.
Application
RXSOL SwellPolymer LCM is primarily designed for:
- Horizontal directional drilling (HDD)
- Horizontal drilling operations
- Drilling-fluid loss control
- Fracture sealing
- Highly permeable formations
- Unconsolidated formations
- Gravel and void zones
- Caving zones
- Lost-circulation zones
- Annular loss control
- Borehole stabilization
- Temporary plugging applications
Precautions
How does LCM Lost Circulation Material work in drilling?
When the dry polymer comes into contact with water, the cross-linked polymer network rapidly absorbs water.
The polymer particles expand and form a swollen, cohesive mass.
Dry polymer → Water absorption → Rapid swelling → Particle expansion → Fracture/void filling → Loss reduction
The cross-linked structure prevents the polymer from simply dissolving into the drilling fluid. Instead, the material maintains its three-dimensional polymer network while retaining absorbed water.