CSJ Super Fishing Jar

Product Detail

CSJ Super Fishing Jar

Technical Features

CSJ type super fishing jar is a fishing tool which the jarring force is larger than other jar with same specifications. It features a closed structure , reliable performance, easy to adjust and easy to operate. It is a new type of top jarring tool used in oilfield , geological exploration and drilling operation.

Working principle

CSJ type super fishing jar effects the top jarring action is by means of hydraulic mechanism which allows taper piston to move in cylinder and stores energy by raising drill tool . When the drill tool attached on the top of super fishing jar is raised , enough time is provided for drill tool to store energy due to the damping action between taper piston and sealing body in pressure body of super fishing jar. When taper piston moves to release bore, the drill tool shall suddenly attract and produce an upward dynamic load along with the instant unloading of high hydraulic oil . The reliable impact working face is designed in the product structure to ensure that large jarring force is provided to stuck fish (drill tool ). A desire return mechanism is designed in order to make a reciprocating jarring action. In order to make a rotation for drill tool in down hole and a circulation for fluid, CSJ type of super fishing jar pass torque by means of spline and meanwhile enlarge the watercourse as far as possible to meet the tests with exception of fluid circulation and other applications.

Technical parameters

Parameter/Model	CSJ31B	CSJ36B	CSJ44B	CSJ46B	CSJ62B	CSJ64B	CSJ70B	CSJ76B	CSJ80B	CSJ90B
Product Code	0301000	0303000	0306000	0308000	0310000	0311000	0313000	0314000	0315000	0316000
Pull-down length (mm)	3827	3875	4065	4065	4410	4410	4430	4435	4435	4500
O.D. (mm)	80	95	114	121	160	165	178	197	203	229
I.D. (mm)	25.4	28	38	45	57	57	60	71	71	76
Stroke (mm)	298	298	305	305	320	320	320	330	330	330
Tensile load (kN)	300	500	780	980	1270	1370	1570	1870	2100	2200
Max. tension downhole (kN)	150	200	340	400	700	750	800	800	800	1000
Max. work torque (kN.m)	3	4	7	8	15	15	17	20	22	25
Sealing pressure (MPa)	30	30	30	30	30	30	30	30	30	30
Max. working temperature(℃)	150	150	150	150	150	150	150	150	150	150
API Connection	23/8REG	NC26	NC31	NC38	NC50	NC50	NC50	65/8REG	6 5/8REG	7 5/8 REG
Weight(kg)	80	157	260	300	550	600	700	860	900	1120