Overview
This series of Lost Circulation Materials (LCM) is designed to effectively control fluid losses during drilling operations. By forming bridging and sealing structures within fractures, pores, or vugs, these materials rapidly reduce or eliminate drilling fluid loss, ensuring well control safety and operational continuity. The products are suitable for both water-based and oil-based drilling fluids and perform reliably under complex formation conditions.
Technical Specifications
| Product Code | Function/Application | OBM/WBM | Temperature （°C） | Features | Availibility |
|---|---|---|---|---|---|
| GN CARB | drilling, drill-in and workover/completion fluids | OBM | Acid-soluble,Effective bridging agent | Powder / 25 kg Sack or 1MT Sack | |
| GN ECOBLE | Combination of fibers, granules and flakes, FOR large natural fractures | OBM WBM | Effective and economical LCM blend | Powder / 25 kg Sack | |
| GN ECOFY | Bridge and seal in both water- or non-aqueous based drilling fluids | OBM WBM | Inert material with minimal effect , Non-toxic | Powder / 25 kg Sack | |
| GN E-SEAL | Control seepage loss in depleted formations, prevent differential sticking and cure lost circulation | OBM WBM | Compressible and deformable, Environmentally safe, non-toxic | Powder / 25 kg Sack | |
| GN G-SEAL | Control seepage in partial- to-severe lost circulation zones | OBM WBM | 260 | Thermal-stable, high resiliency | Powder / 25 kg Sack |
| GN MI-SEAL | For serious mud loss,Combines with other LCM | OBM WBM | Environmental- friendly, high effeciency | Powder / 25 kg Sack | |
| GN NU-SEAL | Controls lost circulation | OBM WBM | Cost-effectively, high effeciency | Powder / 25 kg Sack | |
| GN O-SEAL | High-fluid-loss, partial to wide ranging severe loss situations | OBM WBM | A single sack solution to eliminate the guesswork | Powder / 25 kg Sack | |
| GN SW-SEAL | Adequate operation time delayed expansion | WBM | 200 | Salt tolerance, Low dosage | Powder / 25 kg Sack |
| Note: Other products, please contact us for more products information | |||||
Key Functions
- Form effective bridging structures in fractures, pores, and high-permeability zones
- Rapidly reduce or stop drilling fluid losses
- Enhance wellbore stability and mitigate loss-related risks
- Reduce non-productive time (NPT) and overall drilling costs
- Minimize formation damage and protect reservoir productivity
Features
- Controlled particle size distribution to match various loss channels
- Synergistic combinations of materials (fibrous, granular, flake types)
- Excellent thermal stability, pressure resistance, and chemical compatibility
- Good compatibility with conventional drilling fluid systems
- Available in both temporary plugging and permanent sealing solutions
- Customizable formulations for specific formation conditions
Applications
- Fractured and high-permeability formations
- Vuggy or karst carbonate formations
- Sandstone and carbonate reservoirs prone to losses
- Partial to severe or total loss scenarios
- Preventive and remedial lost circulation treatments