Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drill string in tension.Manufactured from AISI 4145H modified quenched and tempered steel.
ZSJ/ZXJ Type Drilling Jar (hydraulic-mechanically)
The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation .It is a first selected tool for directional well,complicated well and deep well.The drilling jar is consisting of ZSJ type drilling up jar and ZXJ type drilling down jar,both they can be used mutually or operated separately .The up jarring section takes use of hydraulic mechanism,the jarring force can be adjusted according to up elevating load but can not exceed the max.load for tool load rated .The down jarring section takes use of mechanical friction mechanism, the jarring force is well preadjusted by adjusting device before put into downhole.No re-adjustment can be allowed after jar is put into downhole.
Downhole Motor with high performance and high deviation for horizontal section.
Through the advanced high-performance rubber technology, the output power of the motor is greatly improved, and the overall power of the drilling tools is guaranteed under the condition of reducing the number of stages.
Through the advanced series bearing technology.
The bending point distance is reduced to the maximum extent,and the tool slope is improved.
High wear resistant TC bearing technology with patent technology.
The whole Downhole Motor is shortened by nearly 3000mm, the drilling trajectory is smoother, and the quality of horizontal section is better.
