Kelly is main driver of the whole drill string.It transmits torsional energy from the rotary table through the drill string to the bit at the bottom of the hole.XINRUIDE Kelly is a long square or hexagonal,precision machined heavy steel bar that is supported by the swivel through the rotary table and is connected to the first joint of drill pipe in the drill string.
The Flat Bottom Junk Mill is the most commonly used milling tool. The Flat Bottom Junk Mill is designed to mill a wide variety of junk such as squeeze tools, packers, tubing, bridge plugs and similar objects.
Heavy Weight Drill Pipe (HWDP) is an intermediate weight drill stem component which is used in conjunction with the drill pipes and drill collars. XINRUIDE HWDP is avalable in standard,spiral and non-magnetic designs.In some applications,heavy-weight drill pipes also can be used instead of the drill collars.
