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Contact Expert
Email: jason.ren@cnpcusa.com
Phone: +1 (713) 972-6530
Address: 22130 Merchants Way Ste. 190, Katy, TX 77449
High Strength Water Swellable Rubber
CNPC USA has developed proprietary swellable rubber with exceptionally high strength. This enables a multi-segment swellable packer design with a higher pressure rating per length than commercial alternatives, significantly reducing run-in risks while providing stable downhole isolation.
Left: Swelling rate in 7.5% KCl at 180°F | Right: Swelling in fresh water and 7.5% KCl at 250°F
Applications
- Open hole and cased hole swellable packers
- Long-term reservoir compartmentalization
- Inflow control device (ICD) completions
- Gravel-pack and straddle assemblies
- Loss circulation control and matrix acidizing
Features & Benefits
- High tensile strength and sealing force
- Hardness 50% higher than market standards
- Temperature rating up to 300°F
- Engineered delay mechanisms available
- Adaptable to salinities from 0-10%
Specifications
| Properties | SR-007 #1 | SR-007 #2 | SR-011 | Typical Rubber | Improvement (%) |
|---|---|---|---|---|---|
| Tensile strength (psi) | 1077 | 1072 | 1084 | 200-500 | 100-450% |
| Tensile Elongation (%) | 262 | 208 | 125 | 150 | 60% |
| Hardness fresh (Shore A) | 98 | 95 | 98 | 75 | 30% |
| Hardness in 7.5% KCl @ 180°F | 51 | 53 | 56 | 35 | 50% |
| 90% Swelling Rate (days) | 10 | 15 | 8 | 20 | 40% |