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....
Releasing and Circulating Overshot The releasing overshot is the special external fishing tool used for fishing drilcollar , drill pipe , oil tube and other fishes in drilling and work over....
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....
ZSJ/ ZXJ Type Drilling Jar ( hydraulic-mechanically) The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation .It is a....
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....
Integral Heavy Weight Drill Pipe The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe. It is made from premium alloyed steel....
Drill Collar Drill Collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity.....