Releasing Spear In drilling and work over opertion, the releasing spear is a tool mainly used for fishing of drill pipe, oil pipe and casing from fish hole.It can be used with internal cutter , ....
Our Tianhe main products are: Drill Collars, Spiral Drill Collars, Integral Heavy Weight Drill Pipe, and several kinds of drilling tools, work-over tools, cementing tools, coring tools, fishing tools....
KXJ Type Fishing Bumper Subs The fishing bumper sub is a kind of mechanical down jarring tool with long wrking stroke. It can jar stuck pipe stem repeatedly to loose stuckpoint to release stuck pipe....
YSJ Type Hydraulic Up Jars YSJ Type hydraulic up jar reach up jarring purpose by applying hydraulic principle and bigelastic energy released suddenly from elastic deformed drill tool. It will obtain....