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.
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.
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.
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.