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Drill pipe of anti-well drilling rig
Release time:
2024-05-07
Author:
Source:
drill pipe of anti-well drilling rigIt is responsible for transmitting the downward thrust and torque generated by the main machine to the tooth wheel drill head to make it produce the crushing effect on the rock. During the reaming process, the drill pipe is responsible for transmitting the upward tension machine torque generated by the main machine to the reaming cutter plate, so that the hob on the cutter plate produces the crushing effect on the rock wall.
I. Introduction and Classification of Drill Pipe
The hollow shaft used for transmitting axial force and torque and conveying flushing fluid is respectively provided with inner and outer conical butterfly patterns for end-to-end connection of the drill pipe.
The drill pipe of anti-well drilling rig includes ordinary drill pipe, stable drill pipe, open hole drill pipe and joint drill pipe.
1. Ordinary drill pipe
General drill pipe without special requirements.
2. Stabilize drill pipe
Drill pipe with multiple functions such as stable drilling, guiding and torque transmission.
Stabilized drill pipe is divided into straight reinforced stabilized drill pipe and spiral reinforced stabilized drill pipe according to its stable structure type.
3. Hole drilling pipe
Special drill pipe used to ensure the quality of the pilot hole opening.
4. Joint drill cup
A short drill rod used to connect a tri-cone bit and a drill rod or a reamer bit and a drill rod.
The joint drill pipe is divided into ordinary joint drill pipe and special-shaped joint drill pipe.
5. Ordinary joint drill pipe
Joint drilling material with the same thread profile and size at both ends.
6. Special-shaped joint drill pipe
Joint drill scale with different thread profile or size at both ends.
2. drilling rig drill pipe processing technology:
The smooth pipe and the raw steel pipe are made into a drill pipe after a number of processing steps. First of all, through the treatment of steel pipe thickening process, the outer surface of the smooth tube is bent inward, and the wall of the steel pipe is thickened. Next, thread processing is performed and plated with copper to increase strength. A non-destructive quality control inspection is then performed, followed by welding of the steel pipe body joint. The pipe body undergoes welding heat treatment and welding final treatment to eliminate welding residual pressure. Other tests, including hardness test, pressure test and non-destructive test, shall be carried out on the finished steel pipe before the finished drill pipe is painted and packaged.
3. characteristics of the use of drill pipe of anti well drilling rig:
The drill pipe we are talking about is a steel pipe with a threaded tail, but its strength must be able to withstand the pressure, torque, etc. of the drilling.
The drill pipe carries the drilling mud to the drill bit while drilling and raises and lowers it accordingly.
The drill pipe has the characteristics of fast drilling speed, good drilling forming, high drilling efficiency, greater torque, stable operation, convenient and rapid disassembly and assembly, good sealing, high tensile strength, high pile quality, etc.
Good verticality, easy to remove and install.
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