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Downhole Drilling Tools
Downhole Drilling Tools

    Downhole Drilling Tools

    All the mentioned datas are conventional, and we can also produce as per customer’s special requirements.

    1. Detailed information

    Drilling Jars

     “JYQ” Mechanical-hydraulic Drilling Jar

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    The Model “JYQ” Mechanical-hydraulic Drilling Jar is a jarring and stuck releasing tool. It integrates the up jar and down jar and can release the stuck accident occurring during drilling operation. The Drilling Jar is an ideal tool for directional well and deep well drilling.

    Model

    O.D.

    I.D.

    Connection

    Max. Upward Jarring force

    Max. Downward Jarring force

    Max. Working Load

    Tensile Yield Strength

    Max. Working 

    Torque

    Torsional Yield Strength

    Length

    m
     (in)

    mm
    (in)

    API

    kN(lbf)

    kN(lbf)

    kN(lbf)

    kN(lbf)

    kN(lbf.ft)

    kN(lbf.ft)

    mm (in)

    JYQ121Ⅱ

    121
    (4-3/4)

    57.2
    (2-1/4)

    NC38

    350
    (78000)

    250
    (56000)

    900
    (200000)

    1350
    (300000)

    15
    (11000)

    27
    (20000)

    4500
    (117-3/16)

    JYQ159

    159
    (6-1/4)

    57.2
    (2-1/4)

    NC46

    700
    (156000)

    350
    (78000)

    1600
    (360000)

    2700
    (600000)

    25
    (18000)

    65
    (48000)

    5007
    (197-1/8)

    JYQ165

    165
    (6-1/2)

    71.4
    (2-13/16)

    NC50

    700
    (156000)

    350
    (78000)

    2000
    (450000)

    3200
    (720000)

    25
    (18000)

    75
    (55000)

    5256
    (206-15/16)

    JYQ178

    178
    (7)

    71.4
    (2-13/16)

    NC50

    800
    (180000)

    400
    (90000)

    2400
    (540000)

    3200
    (720000)

    30
    (22000)

    80
    (59000)

    5256
    (206-15/16)

    JYQ197

    197
    (7-3/4)

    76.2
    (3)

    6 5/8REG

    1000
    (22500)

    450
    (100000)

    2600
    (580000)

    5100
    (1150000)

    30
    (22000)

    100
    (74000)

    5095
    (200-5/8)

    JYQ203

    203
    (8)

    76.2
    (3)

    6 5/8REG

    1000
    (22500)

    450
    (100000)

    2800
    (630000)

    5200
    (1170000)

    35
    (25800)

    145
    (100000)

    5095
    (200-5/8)

    JYQ241

    241
    (9-1/2)

    76.2
    (3)

    7 5/8REG

    1400
    (315000)

    500
    (112000)

    3500
    (780000)

    9500
    (2100000)

    40
    (30000)

    180
    (130000)

    5300
    (208-5/8)     

    “QY” Full Hydraulic Drilling Jar

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    Full Hydraulic Drilling Jar Type “QY” is a kind of unfreezing tool for drill string when they get stuck. It is an integral hydraulic jar with up jarring and down jarring. When a bottomhole assembly becomes stuck, the jar can deliver an extra-heavy impact to unfreeze with up jarring or down jarring, thus normal drilling operation can be recovered quickly.

    Model

    O.D.

    I.D.

    Connection

    Max. Upward Jarring force

    Max. Downward Jarring force

    Max. Working Load

    Tensile Yield Strength

    Max. Working Torque

    Torsional Yield Strength

    Length

    m
     (in)

    mm
    (in)

    API

    kN(lbf)

    kN(lbf)

    kN(lbf)

    kN(lbf)

    kN(lbf.ft)

    kN(lbf.ft)

    mm (in)

    QY80 II

    80
    (3-1/8)

    25.4
    (1)

    2 3/8REG

    150
    (34000)

    60
    (13500)

    350
    (78000)

    600
    (130000)

    3
    (2200)

    6
    (4400)

    5550
    (218-1/2)

    QY95 II

    95
    (3-3/4)

    31.8
    (1-1/4)

    2 7/8REG

    200
    (45000)

    100
    (22500)

    600
    (130000)

    1000
    (225000)

    4
    (2950)

    8
    (5900)

    5600
    (220)

    QY121 II

    121
    (4-3/4)

    50.8
    (2)

    NC38

    350
    (79000)

    180
    (40000)

    930
    (209000)

    1400
    (315000)

    15
    (11000)

    27
    (20000)

    9801
    (385-7/8)

    QY159 II

    159
    (6-1/4)

    57.2
    (2-1/4)

    NC46

    700
    (160000)

    350
    (79000)

    1600
    (360000)

    2450
    (550000)

    25
    (18000)

    65
    (48000)

    9830
    (387)

    QY165 II

    165
    (6-1/2)

    57.2
    (2-1/4)

    NC50

    700
    (160000)

    350
    (79000)

    1600
    (360000)

    2450
    (550000)

    25
    (18000)

    65
    (55000)

    9830
    (387)

    QY178 II

    178
    (7)

    71.4
    (2-13/16)

    NC50

    800
    (180000)

    400
    (90000)

    2400
    (540000)

    3700
    (830000)

    30
    (22000)

    80
    (59000)

    9830
    (387)

    QY203 II

    203
    (8)

    71.4
    (2-13/16)

    6 5/8REG

    1000
    (225000)

    500
    (112000)

    2800
    (630000)

    4450
    (1000000)

    35
    (25800)

    145
    (100000)

    9918
    (390-1/2)

    QY229 II

    229
    (9)

    76.2
    (3)

    6 5/8REG

    1200
    (270000)

    600
    (135000)

    3000
    (670000)

    7100
    (1600000)

    35
    (25800)

    160
    (118000)

    9908
    (390)

    QY241 II

    241
    (9-1/2)

    76.2
    (3)

    7 5/8REG

    1250
    (280000)

    650
    (146000)

    3500
    (787000)

    8100
    (1820000)

    40
    (29500)

    180
    (133000)

    9908
    (390)

    “CSJ” Super Jar

     MetInfo enterprise content manager system | MetInfo CMS

    Model “CSJ” Super Jar is a hydraulic tool, realizing the stepless control of up jarring tonnage. Thescope of time delay interval can be 30s～240s; the scope of service temperature can be -40℃～180℃. It can be use new special material as the requirement as to obtain higher using property and safety. It should be used for fishing and coring of up jarring.

    Model

    O.D.

    I.D.

    Connection

    Allowable pullimg up load

    Max working Load

    Tensie Yield Strength

    Max. Working Torgue

    Torsional Yield Strength

    Length

    mm
    (in)

    mm
    (in)

    API

    kN(lbf)

    kN(lbf)

    kN(lbf)

    kN· m(lbf·ft)

    kN· m(lbf·ft)

    mm
    (in)

    CSJ95

    95
    (3-3/4)

    28.6
    (1-1/8)

    NC26

    200
    (45000)

    600
    (135000)

    1000
    (225000)

    4
    (2950)

    8
    (5900)

    3882
    (152-13/16)

    CSJ108

    108
    (4-1/4)

    31.8
    (1-1/4)

    NC31

    250
    (56000)

    800
    (180000)

    1350
    (303000)

    10
    (7400)

    20
    (14800)

    3882
    (152-13/16)

    CSJ114

    114
    (4-1/2)

    38.1(1-1/2)

    NC31

    300
    (67000)

    800
    (180000)

    1350
    (303000)

    10
    (7400)

    20
    (14800)

    3882
    (152-13/16)

    CSJ46 II

    121
    (4-3/4)

    50.8
    (2)

    NC38

    350
    (79000)

    1100
    (247000)

    1600
    (360000)

    15
    (11000)

    27
    (20000)

    3882
    (152-13/16)

    CSJ140

    140
    (5-1/2)

    50.8
    (2)

    NC38

    450
    (100000)

    1350
    (303000)

    2350
    (530000)

    20
    (14000)

    50
    (37000)

    3842
    (151-1/4)

    CSJ62 II

    159
    (6-1/4)

    57.2
    (2-1/4)

    NC50

    700
    (160000)

    1600
    (360000)

    2700
    (600000)

    25
    (18000)

    65
    (48000)

    3977
    (156-9/16)

    CSJ168

    168
    (6-5/8)

    57.2
    (2-1/4)

    NC50

    700
    (160000)

    2000
    (450000)

    3000
    (670000)

    25
    (18000)

    75
    (55000)

    3977
    (156-9/16)

    CSJ70 II

    178
    (7)

    60.3
    (2-3/8)

    NC50

    800
    (180000)

    2400
    (540000)

    4000
    (900000)

    30
    (22000)

    80
    (59000)

    4045
    (159-1/4)

    CSJ76 II

    197
    (7-3/4)

    77.8
    (3-1/16)

    6 5/8REG

    1000
    (225000)

    2650
    (600000)

    4000
    (900000)

    30
    (22000)

    100
    (74000)

    4328
    (170-3/8)

    CSJ80 II

    203
    (8)

    77.8
    (3-1/16)

    6 5/8REG

    1000
    (225000)

    2650
    (600000)

    4000
    (900000)

    35
    (26000)

    145
    (100000)

    4328
    (170-3/8)

    CSJ90

    229
    (9)

    76.2
    (3)

    7 5/8REG

    1200
    (270000)

    3000
    (670000)

    8000
    (1800000)

    35
    (26000)

    160
    (118000)

    4328
    (170-3/8)

    “DJQ” Cable Jar

     MetInfo enterprise content manager system | MetInfo CMS

    Model “DJQ” Cable Jar, which can store energy by downhole motor to shock, is a kind of electric tool that removes the stuck accident in the process of logging.

    Tool Model

    DJQ92 II

    Motor Rated Voltage V

    110

    Tool O.D. mm(in)

    92(3-5/8)

    Jarring Ton. N

    3500

    Tool Overall Length mm

    1860

    Jarring Cycle s

    75

    Applicable Hole  m(in)

    ≥121(4 3/4)

    Impact Acceleration m/s

    196

    Yield Tensile kN

    760

    Impact Stroke mm

    90

    Yield Torque kN·m

    20



    More information about other types of jars are available upon your request. Please send us a letter at sales@jcmec.com

    Shock Tools

    “YJ” Hydraulic Shock Sub

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    Model “YJ” Hydraulic Shock Sub should be mounted on the drilling string near the bit, absorbing or reducing axial vibration and thrust load of the drilling string. And it has a good results for prolonging the service life of the bit and protecting the drilling tools and the surface equipment.

    Model

    O.D.

    I.D.

    Connection

    Max. Working Load

    Yield Pull

    Max. Working Torque

    Yield Torque

    Max. Working Pressure

    Working Stroke

    Length

    mm(in)

    mm(in)

    API

    kN(lbf)

    kN(lbf)

    kN·m
    (lbf·ft)

    kN·m
    (lbf·ft)

    kN(lbf)

    mm(in)

    mm(in)

    YJ95

    96
    (3-3/4)

    38.1
    (1-1/2)

    NC26

    400
    (90000)

    530
    (120000)

    8
    (5900)

    10
    (7400)

    120
    (26000)

    100
    (3-15/16)

    2880
    (113-3/8)

    YJ121

    121
    (4-3/4)

    38.1
    (1-1/2)

    NC38

    1500
    (340000)

    2200
    (490000)

    15
    (11000)

    50
    (36000)

    265
    (60000)

    100
    (3-15/16)

    4116
    (162)

    YJ165

    165
    (6-1/2)

    50.8
    (2)

    NC50

    1600
    (360000)

    2500
    (560000)

    25
    (18000)

    70
    (51000)

    340
    (76000)

    120
    (4-3/4)

    3800
    (149-5/8)

    YJ178 III

    178
    (7)

    57.2
    (2-1/4)

    NC50

    2000
    (450000)

    2700
    (600000)

    35
    (25800)

    95
    (70000)

    390
    (87000)

    125
    (4-15/16)

    4070
    (160-1/4)

    YJ203 III

    203
    (8)

    68
    (2-11/16)

    6 5/8REG

    2000
    (450000)

    2700
    (600000)

    35
    (25800)

    95
    (70000)

    490
    (110000)

    140
    (5-1/2)

    4040
    (159)

    YJ229 III

    229
    (9)

    71.4
    (2-13/16)

    7 5/8REG

    3000
    (670000)

    5000
    (1120000)

    55
    (40000)

    200
    (147000)

    550
    (120000)

    140
    (5-1/2)

    4090
    (161)

    YJ254

    254
    (10)

    71.4
    (2-13/16)

    8 5/8REG

    3000
    (670000)

    5000
    (1120000)

    55
    (40000)

    200
    (147000)

    600
    (130000)

    140
    (5-1/2)

    4100
    (161-3/8)

    YJ279

    279
    (11)

    76.2
    (3)

    8 5/8REG

    4000
    (900000)

    6500
    (1460000)

    60
    (44000)

    280
    (206000)

    600
    (130000)

    140
    (5-1/2)

    3620
    (142-1/2)

    YJ305

    305
    (12)

    76.2
    (3)

    8 5/8REG

    6000
    (1340000)

    12000
    (2700000)

    100
    (74000)

    600
    (440000)

    600
    (130000)

    150
    (5-7/8)

    4950
    (194-7/8)

    YJ356

    356
    (14)

    76.2
    (3)

    8 5/8REG

    8000
    (1800000)

    19000
    (4270000)

    150
    (110000)

    1000
    (740000)

    600
    (130000)

    150
    (5-7/8)

    4000
    (157-1/2)

    The Rigidity Scope Above-mentioned Specification: 1.2～4.3kN/cm

    “SJ” Two-Way Shock Sub

        MetInfo enterprise content manager system | MetInfo CMS             

    Model “SJ” Two-Way Shock Sub should be mounted on drill string which is near the bit. It can slow or sorbs the longitudinal bounce and peripheral torque impact of drill bit (drill string) simultaneously. It should realize the best fitting of drill pressure and rotation rate as to reduce the drill cost and improve the drilling efficiency. It can be used for the drill-in or coring of hard layer, gravel layer and soft-hard interlayer.

    Model

    O.D.

    I.D.

    Connection

    Max working Load

    Max working Torgue

    Max. Drill Pressure

    Max. working stroke

    Rigidity

    Length

    mm(in)

    mm(in)

    API

    kN(lbf)

    kN·m
    (lbf·ft)

    kN(lbf)

    mm(in)

    kN/cm

    mm(in)

    SJ121

    121
    (4-3/4)

    38.1
    (1-1 /2)

    NC38

    1000
    (224800)

    10
    (7300)

    300
    (67000)

    100
    (3-15/16)

    3.0～5.0

    4208
    (165-5/8)

    SJ159 IV

    159
    (6-1/4)

    48
    (1-7/8)

    NC46

    1500
    (337200)

    15
    (11000)

    350
    (78600)

    120
    (4-3/4)

    5494
    (216-1/4)

    SJ165

    165
    (6-1/2)

    48
    (1-7/8)

    NC46

    1500
    (337200)

    15
    (11000)

    350
    (78600)

    120
    (4-3/4)

    5494
    (216-1/4)

    SJ178 IV

    178
    (7)

    57.2
    (2-1/4)

    NC50

    1500
    (337200)

    15
    (11000)

    350
    (78600)

    120
    (4-3/4)

    5735
    (225-3/4)

    SJ203 III

    203
    (8)

    65
    (2-1/2)

    6 5/8REG

    2000
    (449000)

    20
    (14000)

    450
    (101000)

    120
    (4-3/4)

    6080
    (239-3/8)

    SJ229 III

    229
    (9)

    71.4
    (2-3/4)

    7 5/8REG

    2000
    (449000)

    20
    (14000)

    540
    (121000)

    140
    (5-1/2)

    6080
    (239-3/8)

    SJ254

    254
    (10)

    71.4
    (2-3/4)

    8 5/8REG

    2500
    (562000)

    25
    (18000)

    600
    (134000)

    120
    (4-3/4)

    6400
    (251-15/16)

    SJ279Ⅱ

    279
    (11)

    76.2
    (3)

    8 5/8REG

    3000
    (674000)

    30
    (22000)

    600
    (134000)

    160
    (6-1/4)

    5580
    (219-11/16)

    “DHJ” Mechanical -Hydraulic Shock Sub

     MetInfo enterprise content manager system | MetInfo CMS

    Model “DHJ” Mechanical -Hydraulic Shock Sub, which can adopt the dished spring and silicone oil, is a two-action shock sub, being able to absorb the bounce and jounce of drill tool. It has advantages of good serviceability, high load bear and long service life. It has a characteristic of changing the rigidity as to protect the bit optimally, suiting the requirement of different layer.

    Model

    O.D.

    I.D.

    Connection

    Max Working Load

    Max working torgue

    Max Compression

    Max. Stroke

    MPa

    kN/mm

    mm(in)

    mm (in)

    API

    kN(lbf)

    kN · m
    (lbf·ft)

    kN(lbf)

    mm(in)

    (1000×lbf/in)

    DHJ121

    121
    (4-3/4)

    38.1
    (1-1/2)

    NC38

    1100 (247280)

    10
    (7373)

    300
    (67440)

    100
    (3-15/16)

    30

    2.4～7.5
    (13.6～42.6)

    DHJ159

    159
    (6-1/4)

    50.8
    (2)

    NC46

    2010 (451848)

    15
    (11059)

    450
    (101160)

    120
    (4-3/4)

    2.9～7.5
    (16.5～42.7)

    DHJ165

    165
    (6-1/2)

    50.8
    (2)

    NC50

    2010 (451848)

    15
    (11059)

    450
    (101160)

    120
    (4-3/4)

    2.9～7.5
    (16.5～42.7)

    DHJ178

    178
    (7)

    57.2
    (2-1/4)

    NC50

    1672 (375865)

    15
    (11059)

    450
    (101160)

    120
    (4-3/4)

    2.9～7.5
    (16.5～42.7)

    DHJ203

    203
    (8)

    71.4
    (2-13/16)

    6 5/8REG

    2000 (448000)

    20
    (14746)

    550
    (123640)

    140
    (5-1/2)

    3.2～8
    (18.2～45.5)

    DHJ229

    229
    (9)

    71.4
    (2-13/16)

    7 5/8REG

    2500 (740000)

    20
    (14746)

    650
    (146000)

    140
    (5-1/2)

    3.5～10
    (19.9～56.9)

    DHJ241

    241
    (9-1/2)

    71.4
    (2-13/16)

    7 5/8REG

    4100 (921680)

    25
    (18433)

    650
    (146000)

    140
    (5-1/2)

    3.5～10
    (19.9～56.9)

    DHJ279

    279
    (11)

    76.2
    (3)

    8 5/8REG

    4500 (1010000)

    30
    (22119)

    650
    (146000)

    140
    (5-1/2)

    3.5～10
    (19.9～56.9)

     Accelerator

    “ZJQ” Drilling Accelerator

     MetInfo enterprise content manager system | MetInfo CMS

    Model “ZJQ” Drilling Accelerator can be stored energy by hydraulic spring as to increase the

    jarring force for Hydraulic Jar. It should be applied with Hydraulic Drilling Jar Type QYⅡ jointly. The drill collar and Hydraulic Jar (below the Drill Accelerator ) can function an accelerated effect when jarring operates as for making the stuck point gain more jarring force that can increase force for two times at the highest. Meanwhile, it can decrease the bounce-back shock after jarring as to protect the drill tools above Drill Accelerator.

    Model

    O.D.

    I.D.

    Connection

    Max. Stroke

    Tension of full Stroke

    Hole Seal Pressure

    Max Working Load

    Max Torque

    Length

    mm(in)

    mm(in)

    API

    mm

    kN (lbf)

    Mpa(psi)

    kN(lbf)

    kN﹒m(lbf·ft)

    mm(in)

    ZJQ46

    121
    (4-3/4)

    50.8
    (2)

    NC38

    350
    (13-3/4)

    350
    (78700)

    30

    1100
    (247000)

    15
    (11000)

    7430
    (292-1/2)

    ZJQ62

    159(6-1/4)

    57.2
    (2-1/4)

    NC50

    350
    (13-3/4)

    700
    (157400)

    30

    1900
    (420000)

    25
    (18400)

    7780
    (306-1/4)

    ZJQ64

    165
    (6-1/2)

    57.2
    (2-1/4)

    NC50

    350
    (13-3/4)

    700
    (157400)

    30

    2000
    (449600)

    25
    (18400)

    7780
    (306-1/4)

    ZJQ76

    197
    (7-3/4)

    61.9
    (2-7/16)

    6 5/8REG

    350
    (13-3/4)

    1000
    (224800)

    30

    2600
    (584500)

    30
    (22120)

    7630
    (300-3/8)

    ZJQ80

    203
    (8)

    76.2
    (3)

    6 5/8REG

    350
    (13-3/4)

    1000
    (224800)

    30

    3000
    (674400)

    45
    (33200)

    7752
    (305-3/16)

    ZJQ95

    241
    (9-1/2)

    76.2
    (3)

    7 5/8REG

    350
    (13-3/4)

    1200
    (270000)

    30

    4000
    (900000)

    60
    (44200)

    6752
    (265-13/16)

    “SZJQ” Two-action Drilling Accelerator Type

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    Two-action Drilling Accelerator Type “SZJQ” can be stored energy by hydraulic spring. It should be applied with Model QY II Hydraulic Drilling Jar jointly. The drill collar and Hydraulic Jar (below the Drill Accelerator ) can function an accelerated effect when jarring operates as for making the stuck point gain more jarring force. Meanwhile, it can decrease the damage of tremor produced by up-down jarring for drill tools above Drill Accelerator.

    Model

    O.D.

    I.D.

    Connection

    Max. Up-jarring Stroke

    Max. Down-jarring Stroke

    Hole Seal Pressure

    Max Working Load

    Yield Tension

    Max Torque

    Yield Torque

    Length

    mm
    (in)

    mm
    (in)

    API

    mm(in)

    mm(in)

    Mpa
    (psi)

    kN
    (lbf)

    kN(lbf)

    kN·m
     (lbf·ft)

    kN·m
    (lbf·ft)

    mm
    (in)

    SZJQ95

    95
    (3-3/4)

    31.8
    (1-1/4)

    NC26

    178
    (7)

    178
    (7)

    35
    (5000)

    600
    (135000)

    800
    (180000)

    4
    (3000)

    40
    (29500)

    6651
    (261-7/8)

    SZJQ121

    121
    (4-3/4)

    50.8
    (2)

    NC38

    178
    (7)

    178
    (7)

    1100
    (247000)

    1560
    (350000)

    15
    (11000)

    27
    (20000)

    7185
    (282-3/4)

    SZJQ165

    165
    (6-1/2)

    57.2
    (2-1/4)

    NC50

    165
    (6-1/2)

    165
    (6-1/2)

    2000
    (450000)

    3750
    (700000)

    25
    (18400)

    75
    (55300)

    7476
    (294-3/8)

    SZJQ197

    197
    (7-3/4)

    71.4
    (2-13/16)

    6 5/8REG

    203
    (8)

    203
    (8)

    2600
    (585000)

    4000
    (900000)

    30
    (22100)

    100
    (73700)

    8000
    (315)

    SZJQ203

    203
    (8)

    71.4
    (2-13/16)

    6 5/8REG

    203
    (8)

    203
    (8)

    2600
    (585000)

    4000
    (900000)

    30
    (22100)

    100
    (73700)

    8000
    (315)

    SZJQ241

    241
    (9-1/2)

    76.2
    (3)

    7 5/8REG

    254
    (10)

    254
    (10)

    3500
    (787000)

    4000
    (900000)

    40
    (29500)

    180
    (133000)

    7259
    (285-3/4)

    “YJQ” Hydraulic Accelerator

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    Model “YJQ” Hydraulic Accelerator can be used with Model YSJ Hydraulic Jar and Model CSJ Super Jar. It can be mounted above Top Jar ( It is recommended that 1~3 pieces of drill collar can be connected ) as to obtain more up-jarring. It has the advantages of compact structure, reliable sealing and high strength.

    Model

    O.D.

    I.D.

    Undraw full stroke pulling load

    Max. Stroke

    Connection

    Max working Load

    Tensie Yield Strength

    Max. Working Torque

    Torsional Yield Strength

    Length

    mm (in)

    mm (in)

    kN(lbf)

    mm (in)

    API

    kN(lbf)

    kN(lbf)

    kN· m
    (lbf·ft)

    kN· m
    (lbf·ft)

    mm (in)

    GJ73

    73
    (2-7/8)

    20
    (13/16)

    90～120
    (20000~27000)

    218
    (8-9/16)

    2 3/8 TBG

    300
    (67000)

    500
    (112000)

    3
    (2200)

    4.5
    (3320)

    2620
    (103-1/8)

    GJ80

    80
    (3-1/8)

    25.4
    (1)

    110～150
    (25000~34000)

    218
    (8-9/16)

    2 3/8 REG

    350
    (78000)

    600
    (135000)

    3
    (2200)

    6
    (4400)

    2845
    (112)

    GJ89

    89
    (3-1/2)

    28
    (1-1/8)

    130～180
    (29000~41000)

    218
    (8-9/16)

    NC26

    450
    (100000)

    700
    (157000)

    3.5
    (2600)

    7
    (5200)

    2760
    (108-11/16)

    YJQ95

    95
    (3-3/4)

    28
    (1-1/8)

    150～200
    (34000~45000)

    218
    (8-9/16)

    NC26

    600
    (135000)

    1000
    (225000)

    4
    (2950)

    8
    (5900)

    2760
    (108-11/16)

    YJQ108

    108
    (4-1/4)

    31.8
    (1-1/4)

    200～250
    (45000~54000)

    335
    (13-3/16)

    NC31

    600
    (135000)

    1000
    (225000)

    4
    (2950)

    8
    (5900)

    3878
    (152-11/16)

    YJQ44

    114
    (4-1/2)

    38.1
    (1-1/2)

    250～300
    (54000~67000)

    216
    (8-1/2)

    NC31

    800
    (180000)

    1350
    (303000)

    10
    (7400)

    20
    (14800)

    3422
    (134-3/4)

    YJQ46 II

    121
    (4-3/4)

    38.1
    (1-1/2)

    300～350
    (67000~79000)

    234
    (9-1/5)

    NC38

    1100
    (247000)

    1700
    (380000)

    15
    (11000)

    27
    (20000)

    3254
    (128-1/8)

    YJQ62

    159
    (6-1/4)

    57.2
    (2-1/4)

    600~700
    (135000~157000)

    337
    (13-1/4)

    NC50

    1600
    (360000)

    3600
    (800000)

    25
    (18000)

    65
    (48000)

    4375
    (172-1/4)

    YJQ168

    168
    (6-5/8)

    57.2
    (2-1/4)

    600~700
    (135000~157000)

    338
    (13-1/4)

    NC50

    1600
    (360000)

    3600
    (800000)

    25
    (18000)

    75
    (55000)

    4375
    (172-1/4)

    YJQ70 II

    178
    (7)

    60.3
    (2-3/8)

    700～800
    (157000~180000)

    320
    (12-3/5)

    NC50

    2400
    (540000)

    4400
    (990000)

    30
    (22000)

    80
    (59000)

    4019
    (158-1/4)

    YJQ76

    197
    (7-3/4)

    76.2
    (3)

    900~1000 (202000~225000)

    341
    (13-7/16)

    6 5/8REG

    2650
    (600000)

    4000
    (900000)

    30
    (22000)

    100
    (74000)

    4238
    (166-7/8)

    YJQ80

    203
    (8)

    76.2
    (3)

    900~1000
    (202000~225000)

    341
    (13-7/16)

    6 5/8REG

    2800
    (630000)

    4900
    (1100000)

    35
    (26000)

    145
    (100000)

    4238
    (166-7/8)

    YJQ90

    229
    (9)

    76.2
    (3)

    1100~1200
    (247000~270000)

    330
    (13)

    7 5/8REG

    3000
    (670000)

    8000
    (1800000)

    35
    (26000)

    160
    (118000)

    4180
    (164.57)

    YJQ241

    241
    (9-1/2)

    76.2
    (3)

    1100~1250
    (247000~281000)

    330
    (13)

    7 5/8REG

    3500
    (780000)

    9850
    (2200000)

    40
    (29500)

    180
    (130000)

    4180
    (164-9/16)

    Integral Blade Stabilizer

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    Integral blade stabilizer is an important tool in the drilling engineering to control the well deviation. It can stabilize the drilling tools in the drilling process of oil, gas and geological exploration. It can increase the bit life, drilling speed and well bore quality. There are two kinds of integral stabilizers: spiral integral blade stabilizer and straight integral blade stabilizer.

    Hardfacing type: HF1000, HF2000, HF3000, HF4000

    Hole Opener

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    Hole Opener is used for enlarging the surface hole which drilled by cone bit in advance, or connected above the cone bit. It applies to Onshore and offshore oilfield.

    Cutters type:

    "SM": Soft to medium formation;

    "MH": Medium to hard formation;

    "XH": Hard formation.

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