hydraulic Jar Intensifier

hydraulic Jar Intensifier is a kind of down hole fishing jar tool designed to increase jarring function for up jar. So it must be used together with super jar. It could accelerate for the top end of jar and drill collar connecting with its bottom end when working, so to get larger jarring force on stuck point, and reduce quake of drill stem spring back after jarring at the same time.

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Specification

OD mm(inch)	ID mm(inch)	Stroke mm(inch)	Max.Tensile Load in Down Hole (KN)	Sealing Pressure (MPa)	Conn.	Overall Length mm(inch)
121(4 3/4)	38(1 1/2)	224(83/4)	0.9	20	NC38	3275(129)
159(6 1/4)	57.2(2 114)	329(13)	1.5	20	NC50	4380(172)
165(6 1/2)	57.2(2 114)	329(13)	1.5	20	NC50	4380(172)
178(7)	6O(2 5/16)	336(13 1/14)	1.8	20	NC50	3470(147)
197(7 3/4)	71.4(2 13/16)	333(13 1/8)	2.1	20	6 5/8REG	4238(167)
203(8)	71.4(213/16)	333(13 1/8)	2.2	20	65/8REG	4238(167)