Kelly Splash Valve is a necessary tool preventing fluid flowing from Kelly to drill floor and keeping the operating environment from being contaminated by fluid when making a connection or Kelly is taken out of hole and discharge off.

FJ Type-Arrow Back Pressure Valve is an important tool in preventing of blowing out in drilling operation. Comparing to other structural valves, it possess some advantage such as h...

FT type Drop-in Check Valve is an inside BOP (blowout preventer) in the drill string. It is simple in structure and easy to operate. When blowout is going to be happened, the threa...

Main Component of products A. Rolled steel B. Polyethylene C. Pigment of plastic Product quality: Completely accord with trade standard of SY/T5991-94. The products is smooth, no d...

Tool joint are made of AISI 4137 premium alloy steel fully and machined by CNC lathes. All connections are phosphatized, coated with lubricant and provided with thread protectors. ...

Reversing Sub is also called reversing spear which is a special tool for revering stuck drill stem above stuck point in drilling and work over operation. In treatment of stuck dril...

Oriented bent sub is a major power deflection tool having a fixed angle a deviated from low end thread of the bent sub to axial line of drill stem, the power drill tool under the a...

H type safety joint which is installed on the position required for subsurface drill stem and can bear in fishing operation all kinds of loads for pulling or pressing and used to transmit torque, is a subsurface safety equipment.

Float valve sub is special tools to prevent blowout.It is available with plate type float valve sub, arrow-type float valve sub.

Cross-over sub acts for conversion and connection of drill stem component in petroleum, natural gas and geology drilling work.It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations.

The circulating sub is a specialized tool for circulating drilling fluid when running in casing on the way or finishing running casing downhole. According to actual needs, there ar...

AJ type safety joint is a specialized joint consisting of two parts.The specialized joint takes protective effect for drilling stem in drilling, repairing and test oil (gas) engineering etc.

Variable Diameter stabilizer is one of main drill tool assembly in hole guiding. During drilling in deviating and horizontal well, in view of workmanship, stabilizer OD is required...

Type: Unbalance single spiral blade stabilizer and Unbalance multi spiral blade stabilizer The unbalanced spiral blade stabilizer, relying on its structural unbalanced principle, d...

Spherical stabilizer is one of new type tools which is used in horizontal and directional well to prevent hole inclination, improve drilling solution, improve drilling tools service life and hole condition, cut off/scrape bore wall.

Non-rotating stabilizer (rubber sleeve stabilizer) is composed of a AISI 4145H heat-treated steel mandrel and a sleeve made of a special Elastomer.It is a special tool in drilling to avoid blade wear and wall damage.

Float valve stabilizer is mainly used in near bit type stabilizer while working for preventing from borehole deflection, when blowout or well kick takes place, the float valve stab...

Roller Reamer (Rotary reamer/roller stabilizer/ drilling reamer) is designed for various reaming stabilization in drilling operation. Especially it can perform the double functions...

Lifting cap is a special tool for lifting of drilling tools in petroleum, natural gas, drilling engineering and geographical exploration.