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  • Casing Tubes

    casing-tubes
    A B C
    Outer Dia. (mm) Inner Dia. (mm) Length (m)
    108
    114
    127
    146
    168
    178
    183
    193
    203
    219
    244
    273
    323
    406
    457
    508
    93
    101
    114
    127
    149
    159
    163
    173
    183
    199
    224
    251
    301
    382
    133
    483
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    1.5
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2
    2


    Application Range: It is suitable for drilling water wells, geothermal wells, short miscopies, medium mini-type grouting hole of building, dam and harbor project.

    Design Principles: Make the casing follow easy and the equipment and operation simple.

    Outstanding Advantages:Simple structure, easy operation, reliable quality, retrievable drilling tools, and long service life.

    A: Discharge Head
    B: Drill Rod
    C: Guide Sleeve
    D: DTH Hammer
    E: Casing Tube
    F: Guide Device
    G: Casing Shoe
    H: Reamer
    I: Pilot Bit

    Operation Procedure

    1、When drilling starts, the reamer opens and enlarges the hole to drive the casing shoe and casing tube down.

    2、When the drilling in over-burden formation is finished, reverse the rotation to close the reamer, then the assembly can be pulled up through the casing tube.

    3、The casing tube can be left in the hole, or can be pulled out by means of grout sealing material.

    4、Use the normal drilling tools to drill and achieve to the desired depth.

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