All of the products are designed and manufactured strictly according to API Standard. During the drilling process, it can use pressure differential in nozzle of drill stem inside and outside circulating process, so that the diameter changeable stabilizer can stretch it's bracing...

All of the products are designed and manufactured strictly according to API-7-1 Specification. Drop-in check valve is an internal preventer. When blowout is going to happen, the Kelly should be removed immediately and the check pressure valve assembly should be put into the water...

All of the products are designed and manufactured strictly according to API Standard. Arrow Type Check Valve used to be installed between drill stem and bit to prevent drilling fluid backflow from the bottom. The body is a crossover sub in which the other parts are installed. When...

1.lower wear , long life ,friction lower,weight accurate 2.can't fly out and hurt you 3.high qulity and conpetitive price Square Drive Roller Kelly Bushing    The Square Drive Roller Kelly Bushing provides the following advantages:    ...

1) API 2)raising drilling speed 3)reducing drilling cost 4)absorb or reduce both transversal and longitudinal virbration ...

They are designed and manufactured according to API 8C Specification. XSL-swivel with spinner is a combination of swivel and kelly spinner,driven by air motor or hydraulic motor,with keyless connection adopted between spinner and central pipe of swivel.It is designed and...

Equipped with a hydraulic snubber assembly to protect tool joints when making up/breaking out connections. HookTravalling Block and Hook are effective devices of drilling rig for lifting.  It is underground work in the most basic conditions and the main...

The product can reduce its friction with Kelly by rotation of four rollers and extend its service life . Series of Roller Kelly BushingsThe Roller Kelly bushing ia a necessary tool tor drilling,by matching with the rotary square to drive Kelly pipe.The product can reduce its...

1 air hoist powered by piston-type air motor. 2 air pressure:72-130psi 3 max pull:5-50KN    Oilfield Tool API QJ Series of air hoist ...

1.Body materal is bought from NOV 2.Good quality use more than 5years 3.belong to drilling rig Traveling blocksThe housing assembly is made of thick section steel plate to provide enough weight. The wire line is kept taut when hoisting or lowering the unloaded block.The sheave...