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....

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....

Drilling Reamer

The roller stabilizer ( drilling reamer) is used for all kinds of reaming stabilization in drilling operation, especially the function of stabilization in drilling....

This kind of stabilizer is prior than the traditional inlaid alloy column type stabilizer .This kind of stabilizers can protect the drill bit well. This kind of stabilizers are....

CSJ Type Super Fishing Jar

CSJ type super fishing jar is a fishing tool which the jarring force is larger than other jar with same specification.
It features a closed structure....

Kellys

Kellys is driving section of wohole drill stem. Kelly is available with square kelly and hexagonal kelly. TIANHE brand kelly are manufactured strictly from API Spec7-1 and....

Integral Spiral Heavy Weight Drill Pipe

Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight....

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....

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....

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Spiral Drill Collar

Spiral Drill Collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. TIANHE brand spiral drill....