Type DJ Surface Bumper Jar
group nameDownhole Tools
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Min Order1 piece
modelDJ
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update timeMon, 08 Apr 2013 00:28:20 GMT
Paramtents
Processing Type Casting
Machine Type drilling jar
Type DJ surface bumper jar
Use Well Drilling
Certification API
Material alloy steel
Packging & Delivery
Min Order1 piece
Briefing
used to free downhole stuck tools by producing downward jarring impact to stuck portion at surface
Detailed
Surface Bumper Jar:
used to free downhole stuck tools by producing downward jarring impact to stuck portion at surface
Surface Bumper Jar
1.Model DJ surface bumper jar is used to free downhole stuck tools by producing downward jarring impact to the stuck portion at the surface of drilling platform, having the advantages of powerful jarring impact,reliable tonnage-adjusting and convenient utilization.
2.It is especially effective for freeing key seat,tight-hole or sticky stuck tools.
O.D. mm (in) | 121(4 3/4) | 178 (7) |
Stroke mm (in) | 1500 (59) | 1220 (48) |
I.D. mm (in) | 32(1 1/4) | 51(2) |
Connection | NC38 (3 1/2 IF) | NC50 (4 1/2 IF) |
Closed Length mm (in) | 3155 (124.2) | 3090 (121.8) |
