Thread Directional Ditch Witch Drill Pipe Straight Holes High Accuracy
Brand Name:DAWN TOOLS
Certification:ISO9001
Model Number:D24
Minimum Order Quantity:100
Place of Origin:CHINA
Supply Ability:5000 pieces per month
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Location:
Nanjing Jiangsu China
Address:
No.148 Hefeng west road, Hefeng town, Lishui District, Nanjing, China
Supplier`s last login times:
within 48 hours
Product Details
Company Profile
Product Details
High Drilling Rate HDD Drill Rod Good Flushing Effect For Coal Mining
Drill rod using thread system. Drilling precision can be further improved by using this as the first rod in a normal drill string. Furthermore, since this is a speed rod design it will produce straighter holes and at least 10% higher penetration rate in good rock conditions compared to rod and coupling sleeve combination system.
Our quality team’s work begins by ensuring a consistently high
standard of raw material: checking every batch on delivery against
the technical team’s strict criteria for dimensional accuracy and
steel chemistry. Once approved for production, every item of
material is issued a work number that allows us to track it through
every subsequent step of the manufacturing process. The completed
product is finally issued and stamped with a serial number that
enables 100% traceability of all that manufacturing data.
Specifications:
To guarantee premium quality product, all products material is sourced from Shanghai Baosteel specially developed hot rolling high strength alloy structure tube for oil and gas drilling tools without considering about high cost.
This material uses external refining and vacuum degassing technology with even composition and high purity. The lowest content of harmful chemical elements such as phosphor and sulfur is reached.
Non destructive test is performed according to NDT standard Level 2 with combination of eddy and ultrasonic to guarantee material quality without any defect.
Each of drill pipe is treated by shot peening. After shot peening treatment, surface of drill pipe and thread gets residual pressure stress. This stress can improve drill pipe anti-fatigue service life. Shot peening treatment on thread can help thread compound adhering to thread. Thread service life is improved.
Product Application
HDD drill pipe is a tool applicable for transferring torque and
tension of drillers in the process of directional drilling
construction. Due to the fact that it has to bear torsion, tension,
bending, friction and vibration in the process of directional
construction, the requirements for processing process are very
strict.
The raw materials selected by our company are all the alloy
structure steels for geographical usage produced by Baogang Steel.
After laboratory tests, both ends of a pipe are upsetted and
proceeded to overall heat treatment, then friction welded. Before
finished drill pipes are plated and packaged, a series of tests
have to be implemented including hardness, metallurgical structure,
physical performances, etc.
Thread Directional Ditch Witch Drill Pipe Straight Holes High Accuracy
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