ZSJ/ZXJ HYDRAULIC & MECHANICAL TWO-PIECE DRILLING JAR

API Spec 7-1

This drilling jar consists of two components, the ZSJ type drilling up jar and ZXJ type drilling down jar. These components can be operated together or exclusively.

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HYDRAULIC & MECHANICAL TWO-PIECE DRILLING JAR API HYDRAULIC & MECHANICAL TWO-PIECE DRILLING JAR Oil Well Jarring Operation Tool Hydraulic-Mechanical Two-Piece Drilling Jar Zsj/Zxj Hydraulic & Mechanical Two-Piece Drilling Jar for Directional Complicated and Deep Wells API Oilfield Hydraulic-Mechanical Two-Piece Drilling Jar for Oil Well Drilling

Product Description

Product Parameters

This type of drilling jar is connected to the drill string to help release stuck drill tools during drilling operations and ensures that drilling operations can be resumed promptly. This product is especially recommended for directional, complicated and deep wells.

This drilling jar consists of two components, the ZSJ type drilling up jar and ZXJ type drilling down jar. These components can be operated together or exclusively. The up jarring portion utilizes the hydraulic system, allowing the jarring force to be easily adjusted by the tool elevation load. The jarring force should not exceed the maximum rated load of the tools. The downward jarring portion utilizes the mechanical friction mechanism. However, the jarring force can only be pre-adjusted mechanically on the drilling jar prior employing it in the downhole drilling operation.

ParametorModel		ZSJ94B	ZSJ90B	ZSJ80B	ZSJ76B	ZSJ70B	ZSJ66B	ZSJ64B	ZSJ62B	ZSJ56B	ZSJ46B
ParametorModel		ZXJ94B	ZXJ90B	ZXJ80B	ZXJ76B	ZXJ70B	ZXJ66B	ZXJ64B	ZXJ62B	ZXJ56B	ZXJ46B
Product Code		1317000	1316000	1315000	1314000	1313000	1312000	1311000	1310000	1309000	1308000
0.D. (mm)		241	229	203	197	178	172	165	160	146	121
I.D. (mm)		76	76	71.4	714	70	63.5	57	57	57	47
Pull Down Overall Longth (mm)	Up	5450	5450	5515	5515	5424	5452	5360	5360	5730	5300
Pull Down Overall Longth (mm)	Down	5550	5550	5250	5250	5215	5098	5215	5215	5000	4760
Pull Down Stroke (mm)	Up	343	343	368	368	344	344	344	344	332	305
Pull Down Stroke (mm)	Down	254	254	181	181	178	178	178	178	180	178
Connection API		75/8 REG	75/8 REG	65/8 REG	65/8 REG	NC50	NC50	NC50	NC46	412 FH	NC38
Max Tensile Load(kN)		2800	2800	2500	2500	2300	2200	2200	2200	2000	1400
Max.Working Torque(N.m)		22×103	22×103	20×103	18×103	15×103	15×103	15×103	15×103	15×103	13×103
Rated Release Force for Up Jar (kN)		500-700	500-700	400-600	400-600	350-550	350-550	300-450	300-450	200-350	150-250
Max.Up Jarring Released Force (kN)		1000	1000	750	750	700	700	550	550	450	270
Max.Down Jarring Reloase Force (kN)		650	650	600	600	550	550	500	500	400	250
Weight (kg)		3000	2600	2124	1950	1350	1280	1200	1090	870	650