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 Drilling Jar |
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Drilling Jar
JZ Mechanical Drilling Jar integrates the up jarring with the down jarring with wide load range. The special flexible extended shaft can cut down the flexural stress of the jar body efficiently.
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Type
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OD (m)
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ID (mm)
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Max. Tensile Load (MN)
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Max. Working Torque (KN.M)
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Pumping Area (cm2)
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Up Jar Stroke (mm)
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Down Jar Stroke (mm)
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Conn.
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Overall Length (in locked position) (mm)
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JZ95
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95
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28
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0.8
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8
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32
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200
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200
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2 7/8 Reg.
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5800
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JZ108
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108
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36
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0.8
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10
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38
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203
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203
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NC31
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6404
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JZ121
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121
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51.4
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1.4
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13
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60
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198
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205
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NC38
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6343
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JZ159III
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159
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57
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2.2
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15
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100
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149
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166
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NC46
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6517
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JZ165
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165
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57
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2.2
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15
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100
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149
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166
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NC50
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6517
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JZ178
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178
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57
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2.3
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15
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100
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147.5
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167.5
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NC50
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6570
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JZ203
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203
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71.4
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2.5
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20
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176
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144.5
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176.5
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6 5/8 Reg.
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7244
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JZ229
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229
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76
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2.5
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22
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181
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203
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203
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7 5/8 Reg.
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7753
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Hydromechanical Drilling Jar Type ZSJ & ZXJ
This hydro mechanical drilling jar consists of two independent components, i.e. hydraulic up jar type ZSJ and mechanical down jar type ZXJ, which can be used either independently or in one. It is connected above the drill string neutral point. When resistance or stuck accident is encountered in downhole drilling operation, the drilling jar can be started to up jar or down jar at any time for relief. It's an important tool to reduce the stuck accident during drilling deep well, complicated well and slant well.
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Model
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OD (mm)
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ID (mm)
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Conn.
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Max. Tensile (MN)
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Max. Working Torque (KN.M)
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Max. Jarring Load (KN)
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Max. Stroke (mm)
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Overall Length (mm)
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ZSJ46
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121
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51
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NC38
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1.4
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13
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270
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305
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6391
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ZXJ46
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121
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51
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NC38
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1.4
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13
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250
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182
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5125
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ZSJ56
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146
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57
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4 1/2FH
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2.0
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15
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450
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330
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5738
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ZXJ56
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146
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57
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4 1/2FH
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2.0
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15
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400
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182
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5000
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ZSJ62II
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159
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57
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NC46
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2.2
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15
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550
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346
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6738
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ZXJ62
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159
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57
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NC46
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2.2
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15
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550
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182
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5371
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ZSJ64
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165
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57
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NC50
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2.2
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15
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550
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346
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6736
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ZXJ64
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165
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57
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NC50
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2.2
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15
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550
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182
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5457
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ZSJ70
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178
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70
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5 1/2FH
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2.3
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15
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550
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346
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6359
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ZXJ70
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178
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70
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5 1/2FH
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2.3
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15
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550
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182
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5457
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ZSJ76
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197
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71.4
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6 5/8 Reg.
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2.5
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18
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750
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370
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6670
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ZXJ76
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197
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71.4
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6 5/8 Reg.
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2.5
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18
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600
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181
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5249
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ZSJ80
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203
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71.4
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6 5/8 Reg.
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2.5
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20
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750
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370
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6597
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ZXJ80
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203
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71.4
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6 5/8 Reg.
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2.5
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20
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600
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181
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5249
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