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 You are here  >> All Pictures >> Tubulars and Down Hole Tools >> Drilling Jar
Drilling Jar

 Mechanical Drilling Jar

The mechanical drilling jar type JZ takes the appliance of mechanical structure  And high pressure will not produce in inner chamber as to create a good sealing property and greatly extend the service life  During the drilling operation, the jarring mechanism has no action due to its unique structure which can not be controlled by the common drilling condition and torque, and its unique structure can accurately transmit the torque  Moreover, the up or down jarring blow is adjustable prior to tripping in and will not change during the downhole operation so as to keep a constant jarring load

Specification Series and Performance Parameters

TYPE

O D
mm
(in )

I D 
mm
(in )

Connection
API

Max  Tensile Load
MN
(Lbf)

Max  Working torque
k N·m
(Lbf·m)

Pumping area
cm2

Up jarring stroke
mm
(in )

Down jarring stroke
mm
(in )

Overall length
( locked)
mm
(in )

JZ95

95
(3 3/4)

28
(1 1/8)

2 7/8REG

0 5
(112500)

5
(1,125)

32

200
(7 87)

200
(7 87)

5 800
(228 35)

JZ108

108
(4 1/4)

36
(1 7/16)

NC31

0 7
(157500)

10
(2,250)

38

203
(8 00)

203
(8 00)

6 404
(252 13)

JZ121

121
(4 3/4)

51 4
(2)

NC38

1 0
(225000)

12
(2,700)

60

198
(7 80)

205
(8 07)

6 343
(249 72)

JZ159Ⅲ

159
(6 1/4)

57
(2 1/4)

NC46

1 5
(337500)

14
(3,150)

100

149
(5 87)

166
(6 54)

6 517
(256 57)

JZ165

165
(6 1/2)

57
(2 1/4)

NC50

1 6
(360000)

14
(3,150)

100

149
(5 87)

166
(6 54)

6 517
(256 57)

JZ178

178
(7)

57
(2 1/4)

NC50

1 8
(405000)

15
(3,150)

100

147 5
(5 81)

167 5
(6 59)

6 570
(258 66)

JZ203

203
(8)

71 4
(2 13/16)

6 5/8REG

2 2
(495000)

18
(4,050)

176

144 5
(5 69)

176 5
(6 95)

7 234
(284 80)

JZ229

229
(9)

76
(3)

7 5/8REG

2 5
(562500)

22
(4,950)

181

203
(8 00)

203
(8 00)

7 753
(305 24)

 Full Hydraulic Drilling Jar

The full hydraulic drilling jar type QY is a double-acting hydraulic jar and is used to free equipment stuck down hole  It can be used with a down hole motor, because it is capable of torque transmission, and is ideal for use in coiled tubing operations, snubbing, rotary drilling and fishing applications  By adjusting the amount of surface push or pull (no torque or external adjustments are required) the operator can deliver very light or maximum impacts in either direction

Specification Series and Performance Parameters

Type

O D 
mm(in )

 Water Hole
mm(in )

Overall Stroke
mm(in)

Max  Up
Jarring Load
kN(lbf)

Max Down Jarring Load
kN(lbf)

Connection
API

Max  Tensile
load
KN(lbf)

Max  Working Torque
kN·m

QY121

121
(4 3/4)

51 4
(2)

9442

350
(78000)

180
(40000)

NC38

1000
(225000)

3 5
(2580)

QY159

159
(6 1/4)

69
(2 23/32)

10323

700
(160000)

350
(78000)

NC46

1500
(337000)

14
(10300)

QY165

165
(6 1/2)

69
(2 23/32)

10323

700
(160000)

350
(78000)

NC46

1500
(337000)

14
(10300)

QY178

178
(7)

69
(2 23/32)

9850

800
(180000)

400
(90000)

NC50

1800
(405000)

15
(11000)

QY203

203
(8)

76
(3)

10261

1000
(225000)

500
(120000)

6 5/8REG

2200
(495000)

18
(13000)

QY241

241
(9 1/2)

76 2
(3)

9987

1200
(270000)

600
(135000)

7 5/8REG

2500
(562000)

22
(16000)

 Hydro-mechanical Drilling Jar

The hydro mechanical drilling jar type ZXJ can be used either independently or in conjunction  It is designed for use during drilling operations to apply an intensified force either up or down against a stuck portion of the drilling string  Its unique design combines both a hydraulic time delay release and a mechanical latch mechanism, in one relatively short, double acting drilling jar  Therefore, it is an ideal tool for drilling directional well, complicated well and slant well

Specification Series and Performance Parameters

Type

ZXJ36

ZXJ46

ZXJ 56

ZXJ 62Ⅱ

ZXJ 64

ZXJ 70

ZXJ 76

ZXJ 80

OD                     mm (in )

95
(3 3/4)

121
(4 3/4)

146
(5 3/4)

159
(6 1/4)

165
(6 1/2)

178
(7)

  197
(7 3/4)

  203
(8)

ID                       mm (in )

28
(1 1/10)

51
(2)

57
(2 1/4)

57
(2 1/4)

57
(2 1/4)

70
(2 3/4)

71 4
(2 4/5)

71 4
(2 4/5)

Connection                   API

27/8REG

NC38

41/2FH

NC46

NC50

NC50

65/8REG

65/8REG

Max  Tensile Load              MN

0 5

1 0

1 2

1 5

1 6

1 8

2 0

2 2

Max  Working Torque         KN·m

3 5

12

13

14

14

15

16

18

Max  Upward Jarring Load        kN

160

280

400

560

560

640

800

800

Max  Upward Jarring Stroke      mm (in)

254
(10)

305
(12)

330
(13)

346
(13 62)

346
(13 62)

346
(13 62)

370
(14 56)

370
(14 56)

Max  Downward Jarring Load     kN

100

220

300

420

420

480

600

600

Max  Downward Jarring Stroke   mm(in)

178
(7)

182
(7 16)

182
(7 16)

182
(7 16)

182
(7 16)

182
(7 16)

181
(7 12)

181
(7 12)

Max  Working Temperature ℃

150

150

120

120

120

120

120

120

Sealing Pressure               MPa

30

30

30

30

30

30

30

30

Overall Length of Up           mm (in)

4 162
(163 85)

6 093
(239 88)

5 410
(213)

6 394
(251 73)

6 736
(265 2)

6 354
(250 15)

6 295
(247 83)

6 222
(244 96)

Overall Length of Down         mm  (in)

3 275
(128 93)

5 138
(202 28)

5 000
(196 9)

5 371
(211 45)

5 457
(214 8)

5 457
(214 8)

5 244
(206 45)

5 249
(206 65)

 Drilling Bumper Sub

The drilling bumper sub type ZKX mainly makes the down jarring blow operation, releasing the stuck accident such as the sticking, land filling and keyway effectively and so on  Moreover, it can be also used for fishing operation, or it can be considered as "heave compensator" during offshore drilling

Specification Series and Performance Parameters

Type

Tool O D 
mm(in)

Hole Diameter
mm(in)

Connection
API

Overall Stroke
mm(in)

Max  Working Load
kN(lbf)

Max  Working Torque
kN m

Max  Tensile Load
kN(lbf)

ZKX46

121(4 3/4)

50(2)

NC38

508(20)

350(79000)

8(5900)

900(202000)

ZKX76

197(7 3/4)

76(3)

6 5/8REG

1520(59 7/8)

770(173000)

15(11000)

1800(404000)

ZKX90

229(9)

76(3)

7 5/8REG

1520(59 7/8)

1300(292000)

20(15000)

2200(494000)

 Drilling Accelerator

The drilling accelerator type ZJQ is run in conjunction with a hydraulic drilling jar of the same size, and is manufactured from high strength alloy steel  The tool can not only strengthen the jarring force, but also can absorb much of the jarring shock from the rebounding string to protect tools and strings from damage

Specification Series and Performance Parameters

Type

O D 
mm
(in)

Hole Diameter
(in)

Connection            API

Max  Working Stroke    mm
(in)

Seal   Pressure      Mpa

Max  Working  Load   
KN

Max  Working Torque  KN M

Overall   Length         mm
(in)

ZJQ
46

121
(4 3/4)

50
(2)

NC38

350
(13 78)

30

350
(78750)

8
(5900)

7430
(292 5)

ZJQ
62

159
(6 1/4)

57
(2 1/4)

NC50

350
(13 78)

30

700
(157500)

13
(9600)

7780
(306 3)

ZJQ
64

165
(6 1/2)

57
(2 1/4)

NC50

350
(13 78)

30

750
(168750)

14
(10400)

7780
(306 3)

ZJQ
76

197
(7 3/4)

61 9
(2 2/5)

6 5/8REG

350
(13 78)

30

1000
(225000)

18
(13300)

7630
(300 4)

ZJQ
80

203
(8)

76 2
(3)

6 5/8REG

350
(13 78)

30

1000
(225000)

18
(13300)

7752
(305 2)

ZJQ
95

241
(9 1/2)

76
(3)

7 5/8REG

350
(13 78)

30

1200
(270000)

22
(16300)

6752
(265 8)

 Double-acting Mechanical-hydraulic Drilling Jar

The double acting mechanical-hydraulic drilling jar type JYQ is designed for drilling operation to apply an intensified force either up or down against a stuck portion of the drilling string  It incorporates the feature of both hydraulic and mechanical drilling jars, without of the inherent disadvantage of either type  Its unique design combines both a hydraulic time delay release and mechanical latch mechanism in one relatively short, double acting drilling jar

Specification Series and Performance Parameters

Type

O D
mm
(in)

I D
mm
(in)

Tool Joint
Connection
API

Up Stroke mm
(in)

Down Stroke
mm
(in)

Working Torque
kN m
(Lb ft)

Max  Tensile Load
kN
(Lbf)

Max  up Jarring
KN
(Lbf)

Max  down Jarring
KN
(Lbf)

Overall Length
mm
(in)

Piston areas
mm2

JYQ121

124
(4 7/8)

50 8
(2)

NC38

227
(8 9)

102
(4)

12 5
(21000)

1300
(362000)

250
(56250)

200
(45000)

4500
(177)

2516

 

121
(4 3/4)

57 2
(2 1/4)

NC38

227
(8 9)

102
(4)

12 5
(21000)

1300
(362000)

250
(56250)

200
(45000)

4500
(177)

2827

JYQ159

159
(6 1/4)

57
(2 1/4)

NC46

230
(9)

152
(6)

15
(21000)

2220
(730000)

600
(135000)

330
(74250)

5007
(197)

6446

JYQ165

165
(6 1/2)

70
(2 3/4)

NC50

230
(9)

152
(6)

15
(21000)

2220
(730000)

600
(135000)

330
(74250)

5007
(197)

6446

JYQ178

178
(7)

70
(2 3/4)

NC50

230
(9)

152
(6)

18
(25200)

2220
(730000)

600
(135000)

330
(74250)

5007
(197)

6446

JYQ203

203
(8)

76 2
(3)

65/8REG

232
(9 1)

152
(6)

25
(35000)

2500
(1000000)

800
(180000)

400
(90000)

5095
(200)

9170

JYQ241

241
(9 1/2)

76 2
(3)

75/8REG

232
(9 1)

152
(6)

50
(70000)

5400
(2160000)

1400
(315000)

460
(103500)

5300
(208)

172


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