104
Nominal Size
in.
3.12
3.50
3.75
4.75
6.25
6.75
7.75
(mm)
(79)
(89)
(95)
(121)
(159)
(171)
(197)
Series
420
385
426
427
370
446
455
ID
in.
1.00
1.50
1.25
2.00
2.25
2.50
2.75
(mm)
(25)
(38)
(32)
(51)
(57)
(64)
(70)
Length
feet
8.0
7.5
8.5
9.6
9.0
9.0
9.0
(m)
(2.4)
(2.3)
(2.6)
(2.9)
(2.7)
(2.7)
(2.7)
Weight
lbs
170
175
300
500
860
995
1,320
(kg)
(80)
(80)
(140)
(230)
(390)
(450)
(600)
Maximum Load During
lb
52,000
47,000
64,000
95,000
179,000
212,000
235,000
Hydraulic Delay
(kN)
(230)
(21 000)
(280)
(420)
(800)
(940)
(1 050)
Maximum Tensile Load
lb
240,000
250,000
295,000
360,000
690,000
826,000
977,000
After Jarring
(kN)
(1 070)
(111 000)
(1 310)
(1 600)
(3 070)
(3 670)
(4 350)
Max. Torsional Load
lb
6,300
6,850
8,100
14,000
34,000
44,000
80,000
(Yield Body Conn.)
(Nm)
(8 500)
(9 300)
(11 000)
(19 000)
(46 100)
(59 700)
(108 500)
Jarring Stroke
in.
6.2
4.0
6.0
6.0
6.5
6.9
6.5
(mm)
(157)
(102)
(152)
(152)
(165)
(175)
(165)
Total Stroke
in.
9.5
6.0
10.0
10.0
10.0
10.0
10.0
(mm)
(241)
(152)
(254)
(254)
(254)
(254)
(254)
Pump Open Area
in2
1.8
3.1
3.1
6.5
10.3
11.0
27.0
(cm2)
(12)
(20)
(20)
(42)
(66)
(71)
(174)
Nominal Size
in.
1.81
2.25
3.12
3.75
4.12
4.25
4.75
5.00
5.75
6.25
6.75
7.75
8.75
(mm)
(46)
(57)
(79)
(95)
(105)
(108)
(121)
(127)
(146)
(159)
(171)
(197)
(222)
Series
320
317
318
321
315
363
313
368
325
306
308
323
324
ID
in.
0.31
0.38
1.00
1.25
1.50
1.50
2.00
2.25
2.00
2.25
2.50
2.75
2.75
(mm)
(8)
(10)
(25)
(32)
(38)
(38)
(51)
(57)
(51)
(57)
(64)
(70)
(70)
Length
feet
4.2
5.5
5.9
7.8
7.8
6.3
8.3
8.3
7.4
7.8
7.8
7.8
7.8
(m)
(1.3)
(1.7)
(1.8)
(2.4)
(2.4)
(1.9)
(2.5)
(2.5)
(2.3)
(2.4)
(2.4)
(2.4)
(2.4)
Weight
lbs
30
60
120
230
280
240
400
440
520
650
750
990
1,280
(kg)
(10)
(30)
(50)
(100)
(130)
(110)
(180)
(200)
(240)
(290)
(340)
(450)
(580)
Jarring Stroke
in.
3.0
3.0
4.5
4.8
5.3
4.5
4.8
4.8
5.0
5.0
5.3
5.0
5.3
(mm)
(76)
(76)
(114)
(121)
(133)
(114)
(121)
(121)
(127)
(127)
(133)
(127)
(133)
Total Stroke
in.
5.0
6.0
7.5
10.3
9.3
8.8
9.3
9.3
9.3
9.3
9.3
9.3
9.3
(mm)
(127)
(152)
(191)
(260)
(235)
(222)
(235)
(235)
(235)
(235)
(235)
(235)
(235)
Max. Load During
lb
19k
21k
33k
57k
57k
63k
85k
70k
109k
160k
190k
210k
240k
Hydraulic Delay
(kN)
(80)
(90)
(150)
(250)
(250)
(280)
(380)
(310)
(480)
(710)
(850)
(930)
(1 070)
Max. Tensile
lb
59k
92k
178k
219k
257k
257k
380k
284k
566k
690k
826k
977k
1,486k
Load After Jarring
(kN)
(260)
(410)
(790)
(790)
(1 140)
(1 140)
(1 690)
(1 260)
(2 520)
(3 070)
(3 670)
(4 350)
(6 610)
Max. TorsionalLoad lb-ft
960
2,300
5,200
8,100
11,000
11,000
14,000
12,000
28,000
34,000
44,000
80,000
101,000
(Yield Body Conn.)
(Nm)
(1 300)(3 100)(7 100)(11 000)(15 000)
(19 000)
(16 000)
(38 000)
(46 000)
(60 000)
(109 000)(137 000)
Pump Open Area
in2
0.7
0.7
2.3
3.1
4.4
4.4
6.2
7.1
6.0
10.3
11.0
27.0
15.9
(cm2)
(4)
(4)
(15)
(20)
(29)
(29)
(40)
(46)
(58)
(67)
(71)
(174)
(103)
FISHING JAR
The Griffith • Vector fishing, coring and testing jar is
a straight pull hydraulic jar. The intensity of each
blow is under the complete control of the operator.
Full torque and circulation pressure may be
transmitted through the tool at all times.
The metering device used to control oil flow
during the hydraulic delay maintains a constant flow
rate, regardless of viscosity changes due to high
bottom hole temperature or continuous jarring.
Large resetting ports through the valve permit
unrestricted movement of the jar while closing or
resetting. This allows the efficient use of a bumper
sub, in conjunction with the jar, even if the jar is not
closed before bumping down.
FISHING JAR
HYDRAULIC DRILLING JAR
EXTREME SERVICE FISHING JAR
This Griffith • Vector fishing jar is an up-only
straight pull hydraulic jar. This tool is of heavy
duty design to ensure maximum durability and
jarring effect.
Durability of the jar is enhanced by a fully
lubricated spline drive which minimizes the internal
drag during jarring as well as greatly increasing
tool life.
Careful attention to seal selection and
position allows maximum utilization of material
strength and therefore provides high jarring
loads, long stroke, and large bores in a compact
overall tool size.
The design of the hydraulic chamber offers
several features that greatly enhance the tool’s
operating temperature range. The combination of
valve, meter and fluid gives a consistent time
delay throughout the operating temperature range
of the tool.
The jar is operated by applying an overpull to
fire the jar. Releasing weight allows the tool to
reset when it is ready for another jarring cycle.
This jarring cycle may be repeated as necessary.
The impact force can be varied from a light blow
to a heavy blow by varying the amount of overpull.
Full torque and circulation pressure may be
transmitted through the tool at all times.
Specifications subject to change without notice.
Specifications subject to change without notice.
Hydraulic Drilling and
Fishing Jars
