SwellPolymer LCM
Water soluble polymer for use as Loss Circulation Material in drilling work
Application & Uses
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
Dosage & Directions for Use
How to use and control Lost Control Material
- Determine the severity and approximate size of the loss zone.
- Select an appropriate particle-size grade.
- Add the required quantity slowly into the circulating drilling fluid.
- Maintain sufficient agitation to achieve uniform dispersion.
- Circulate toward the loss zone.
- Allow sufficient residence/contact time for hydration and swelling.
- Monitor returns and fluid-loss reduction.
- Repeat treatment if required.
- Fill a clean mixing tank with compatible water.
- Start moderate agitation.
- Slowly add RXSOL SwellPolymer LCM.
- Allow the polymer to hydrate and swell.
- Continue mixing until a uniform swollen polymer slurry/gel is obtained.
- Pump or place the swollen material into the designated loss zone.
- Allow sufficient static contact time for formation of the sealing plug.
Technical Specifications & Properties
| Form | Solid |
| Colour | White |
| Odour | None |
| Odor Threshold | Not Applicable |
| pH | 6-8 |
| Melting Point | Not Applicable |
| Flash Point | >100°C |
| Autoignition temperature | >200°C |
| Vapour pressure (mm Hg) | 0.13 @ 20°C |
Product Description & Chemical Profile
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.
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