Drilling Jar

Product Detail

China Vigor" Hydraulic Drilling Jar and Hydraulic-mechanical Drilling Jar are designed for use during drilling operations to apply an intensified force either up or down against a stuck portion of the drill string, it is an ideal tool for directional well and deep well drilling.


Hydraulic Drilling Jar and Hydraulic-mechanical Drilling Jar is used to free the stuck tools and make a jarring. It integrates the up jar and down jar and can deal with the stuck accident happened in shortest time during the drilling. It is an ideal jarring tool for the directional well and deep well.
Operators can make an adjustment for lifting and lowering drill tool (without the adjustment of torque and outside) to get the releasing up jar or down jar force when used the Drilling Jar downhole. Moreover, the operator can adjust the jarring force from small to maximal force required. It can be broadly used for drilling, coring, fishing and workover because of its easy operation, convenience and high reliability.
Hydraulic Drilling Jar and Hydraulic-mechanical Drilling Jar are widely used in America and Middle East area. It helps our customer to reduce the working time while there is a stuck during drilling operation, quality is recognized by users. It also used in Shale Gas exploitation by some of our partners due to the reliable performance and economical cost. We also provide our suggestion and solution when customer has problem on operation, maintain or testing etc.
For Hydraulic Shock Tool, it can absorb or reduce axial vibration and thrust load of the drilling.
Hydraulic Shock Tool also has good results for prolonging the service life of the bit and protecting the drilling tools and the surface equipment. For more information of Hydraulic Shock Tool, please email us.

Jarring Loads of the Hydraulic-mechanical Drilling Jar Unit: KN

Model	Mpward Jarring Load	Up Jarring Unlock Force	Ex-plant Downward Jarring Load	Hydraulic Load Testing Pulling Force	Time of the Hydraulic Delay
VDHM121	350	200±25	150±25	220±10	30~60
VDHM140	450	250±25	150±25	300±10	35~90
VDHM159	700	370±25	200±25	390±10	45~90
VDHM165	700	400±25	220±25	420±10	45~90
VDHM178	800	400±25	220±25	420±10	45~90
VDHM197	1000	440±25	270±25	460±10	45~90
VDHM203	1000	440±25	270±25	460±10	45~90
VDHM241	1250	460±25	280±25	480±10	60~120


SPECIFICATIONS


Item	VDHM121	VDHM140	VDHM159	VDHM165
O.D.In	43/4	51/2	61/4	61/2
I.DIn	21/8	21/4	21/4	23/4
ConnectionAPI	NC38	NC38	NC46	NC46
UpJarStrokeIn	9	9	9	9
DownJarStrokeIn	6	6	6	6
WorkingTorqueft-Ib	11000	14600	22000	22000
Max.TensileLoadlb	250000	300000	500000	500000
Max.UpjarloadIb	78000	100000	157000	157000
Max.DownJarLoadIb	56000	67200	78000	78000
OverallLengthmm	4500	5008	5007	5256
PistonAreamm2	2827	4350	6446	5102




Continued

Item	VDHM203	VDHM178	VDHM197	VDHM241
O.D.In	8	7	73/4	91/2
I.DIn	3	23/4	3	3
ConnectionAPI	65/8REG	NC50	65/8REG	75/8REG
UpJarStrokeIn	9	9	9	9
DownJarStrokeIn	6	6	6	6
WorkingTorqueft-Ibs	36000	22000	30000	50000
Max.TensileLoadLb	670000	540000	670000	1200000
Max.UpJarLoadIb	224000	180000	224000	315000
Max.DownJarLoadIb	100000	90000	100000	112000
OverallLengthmm	5095	5256	5095	5300
PistonAreamm2	8796	5102	8796	17192