Roller Kelly Bushings

Taxonomy: >> Product Recommendation   |  Release time:2018-5-21 21:8:48

1 ApplicationRoller Kelly bushing is a dedicated device designed for transmission of torque to driving kelly in the drilling operation .It can be classified as two types based on different ways of drive, square drive and pin drive, also they can classified as three types based on different styles, heavy, medium and light-duty. They can be applicable for rotary table size from 17½ to 37½. By changing roller size ,they can accommodate square kellys from 2½ to 5½ or hex kellys from 3 to 6.

2Product execute standards:  API-7K

3Structure diagram:

滚子方补心.jpg

 

4Partial specifications data are provided as follows

载荷级别Model

推荐钻井深度

载荷级别Model

推荐钻井深度

LD(light duty)

<=2000m

HD(heavy duty)

>=4500m 

MD(medium duty)

2000m-4500m



According to customer requirements, We can design and manufacture other special type of products Tonghua City Qianjin Petro-Mechanical Co.Ltd