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The Lugeon test, sometimes call also Packer test, is an in-situ
testing method widely used to estimate the avarage hydraulic
conductivity of rock mass. It is indeed In situ test of formation
permeability performed by measuring the volume of water taken in a
section of test hole when the interval is pressurized at given
pressure (10 bars -150 psi). It is used primarily in variably
permeable formations under evaluation of fracturating .
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 |