Deployment and operation is simple. The wireline permeability packer assemble is deployed down the drill rods until the bit seating sub lands on the drill rod bit. With the top seal assembly (tighthead) tightened, the packers are inflated and water is then pumped through the tighthead down the rods, through the packers and into the formation.
Main technical parameters:
Sealing hole diameter: 30-200mm (can be processed according to user requirements)
Working pressure :1-8MPa (can be processed according to user needs)
Work flow rate: 3-4.5 tons of grouting per hour
Sealing depth: 1-8000m
Model | OD (mm) | Expansion of scope (mm) | Hole dia. (mm) | Working pressure≤ (Mpa) | Compressive strength (Mpa) | |
Test pressure | Burst pressure | |||||
φ32-2 | 50±2.0 | 90 8-4 | 60 | 6 | 12 | 24 |
φ38-2 | 55±2.0 | 95 8-4 | 65 | 5 | 10 | 20 |
φ38-4 | 60±2.0 | 95 8-4 | 75 | 12 | 18 | 24 |
φ45-2 | 63±2.0 | 100 8-4 | 75 | 4 | 8 | 16 |
φ45-4 | 69±2.0 | 100 8-4 | 75 | 16 | 24 | 32 |
φ51-2 | 69±2.0 | 110 8-4 | 90 | 4 | 8 | 16 |
φ51-4 | 75±2.0 | 110 8-4 | 90 | 16 | 24 | 32 |
φ64-2 | 84±2.0 | 120 8-4 | 100 | 3 | 6 | 12 |
φ64-4 | 90±2.0 | 120 8-4 | 100 | 8 | 12 | 16 |
φ76-2 | 94±2.0 | 130 8-4 | 110 | 3 | 6 | 12 |
φ76-4 | 99±2.0 | 130 8-5 | 110 | 8 | 12 | 16 |
φ89-2 | 109±2.0 | 140 8-5 | 130 | 3 | 6 | 12 |
φ102-2 | 122±2.0 | 160 8-5 | 150 | 3 | 6 | 12 |




