-
-
-
-
Honor
-
-
-
-
-
Contact
-
Beneficiation Technology-Characteristics of Double Shoulder Joint of Triangular Drill Pipe
Release time:
2019-06-11
Author:
Source:
Triangular drill pipe is a geological drilling tool that is widely used in China and is produced by conflict welding process planning of geological alloy steel pipe. Considering the special geological conditions and different terrains, there are certain requirements for the bending strength, fatigue strength and shear strength of the geological triangular drill pipe. Therefore, in the purchase, on its raw materials and production process to do to deepen the understanding. Characteristics of double shoulder joint of triangular drill pipe 1. Increase the torsional strength of the joint 2. Adopt streamlined optimization design to increase the inner diameter of the joint, thus significantly reducing the circulating pressure loss along the drilling tool and reducing the outer diameter of the joint, thus
Triangular drill pipe is a geological drilling tool that is widely used in China and is produced by conflict welding process planning of geological alloy steel pipe. Considering the special geological conditions and different terrains, there are certain requirements for the bending strength, fatigue strength and shear strength of the geological triangular drill pipe. Therefore, in the purchase, on its raw materials and production process to do to deepen the understanding.
Characteristics of double shoulder joint of triangular drill pipe
1Increase the torsional strength of the joint
2The streamlined optimization design is adopted to increase the inner diameter of the joint, thus significantly reducing the internal circulation pressure loss along the drilling tool and reducing the outer diameter of the joint, thus greatly improving the fishing capacity of the drilling tool, and correspondingly reducing the annular circulation pressure loss, improving the hydraulic performance of the joint and maintaining high torsion resistance.
32. The smooth inner diameter joint design is adopted to obtain more stable liquid flow and smaller turbulence, and reduce erosion; reduce the chance of cement and solid particles depositing in the joint; improve the conveying efficiency and capacity of the pump in the drill string; increase the ability of various cable instruments in the drill string (reduce the possibility of impact)
4The double shoulder design makes the stress distribution more balanced, and the load can be shared at both ends of the buckle;APICompared with the connection, the rigidity is stronger, and the stress concentration at the connection is reduced; because the stress concentration is reduced, the fatigue resistance is improved, thereby extending its service life.
Key words:
Drill pipe, joint, geology, design, capacity, strength, stress, triangular, thus, triangular drill pipe
