DRILLING JAR  

     

    Hydraulic Drilling Jar

    Hydraulic Drilling Jar is an integral hydraulic jar with up jarring and down jarring. When downhole drilling tools are stuck, the jar can provide a huge impact to unfreeze with up jarring or down jarring, thus normal drilling operation can be recovered quickly.

    When the jar is used, operators can adjust to picking up it or slacking off it on surface to create up jarring impact or down jarring impact(without addition to the torque or adjustment to the outside part)and adjust impact from very small range to the biggest range needed. The jar can be operated easily and conveniently with high reliability and applied to many downhole activities of drilling, coring, fishing, workover etc. 

    OD ID Connection Max.working load (Lbf) Tensile Yield Strength (Lbf) Torsion yield strength (Lbf-ft) Up Stroke Down Stroke

    4 3/4''

    2 1/4'' NC38

    80,000

    440,000

    20,000

    8'' 7''
    6 1/4'' 2 3/4'' NC50

    150,000

    650,000

    50,000

    8'' 7''
    6 1/2'' 2 3/4'' NC50

    175,000

    850,000

    60,000

    8'' 7''
    7'' 2 3/4'' NC50

    200,000

    1,050,000

    65,000

    8'' 7''
    8'' 3''

    6 5/8REG

    300,000

    1,500,000

    118,000

    8'' 7''
    9 1/2'' 3'' 7 5/8REG

    500,000

    1,900,000

    180,000

    8'' 8''

     * Other sizes available under customer needs.

     

    Double Acting Hydraulic-Mechanical Drilling Jar

    This is a jarring and stuck releasing tool. It integrates the up jar and down jar impact and can release the stuck accident occurring during drilling operation. According to the requirement, the tool can automatically control the impact strength and times of jarring. Moreover, it is an ideal tool for vertical well and deflecting well.

    OD ID Connection Max. working load (Lbf) Tensile Yield Strength (Lbf) Torsion Yield Strength (Lbf-ft) Up Stroke Down Stroke
    4 7/8'' 2 1/32'' NC38

    110,160

    440,000

    20,000

    9'' 6''
    6 3/8'' 2 1/4'' NC46

    139,380

    610,000

    50,000

    9'' 6''
    6 3/4'' 2 1/4'' NC46

    139,380

    850,000

    75,000

    9'' 6''
    7'' 2 1/4'' NC50

    139,380

    1,050,000

    100,000

    9'' 6''
    8'' 2 13/16'' 6 5/8REG

    183,000

    1,500,000

    150,000

    9'' 6''

      * Other sizes available under customer needs.

     

     
     

    Other drilling string products:

    PDC Drill bits Stabilizer Rotary Reamer
    Mud Motor Drill Collar Heavy Weight Drill Pipe
    Hole Opener Drilling jar Jar Intensifier
    Shock Absorber Slide Reamer Variable Gauge Stabilizer



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