API 7-1 Standard Drilling Crossover Sub/ Kelly Sub/ Drill Bit Sub Drilling Tool Well Drilling Pup Joint for Drill Pipe

Descripción

API 7-1 Standard Drilling Crossover Sub/pup joint
Saver Sub
Drill Bit Sub Drilling Tool Well Drilling Pup Joint for Drill Pipe
  1. It is divided into drill string crossover and tubing Crossover.
  2. Drill string Cross-over is divided into type A, type B and type C.

Specification

Denotation Top junction block Lower junction block Type
Kelly joint Kelly Drill pipe joint A or B
Kelly joint Drill pipe joint Drill pipe joint A or B
Drill pipe joint Kelly Drill collar A or B
Crossover joint Drill collar Drill collar A or B
Bit joint Drill collar Bit A or B
Swivel joint Swivel lower joint Kelly Type C
Fish joint Kelly Drill pipe joint Type C
Drill pipe joint Fishing tool Type C

Mechanical properties

O.D. Range  Min. Yield
Strength
 Min. Tensile
strength
 Elongation Min.  Min. Brinell
Hardness
3.1/2 THRU
6.7/8
760Mpa 965Mpa 13% 285
7 THRU 10 690Mpa 930Mpa 13% 277

Drill pipe joint is an important connecting component of petroleum drilling pipe drill, which is widely used in oil drillingindustry.
The market demand is big, has broad prospects for development, Goldenman company with its unique perspective, to create a modern international joint industry as the goal, take on the hard road of entrepreneurship. In the increasingly competitive market economy situation, the courage to struggle and thrive.
• Special medium frequency heat treatment
• Meet the requirements of API 5DP
Specification of Drill pipe joint API 5DP pup joint for drill pipe Connection of drill pipe.
Our Services
1.High quality products-Drill pipe tool joint welding manufacturer drill pipe joint
2.Fast delivery.
3.OEM services.
4.Perfect after-sale services


drill pipe joint
API 7-1 pup joint

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