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Causes of drill pipe breakage-geological drill pipe manufacturers-diamond drill bit manufacturers-composite chip drill bit manufacturers
Release time:
2021-03-23
Author:
Source:
There are probably the following reasons for the broken drill pipe: 1. Material and processing (1) Drill pipe material. Nowadays, the market for drilling materials is relatively chaotic, and dishonest merchants are shoddy. The vast majority of users only consider low prices, but do not have the ability to distinguish the quality of pipes and purchase them indiscriminately. Many users spent high prices, bought sub-material pipes, and said plausibly how good their things are. (2) Processing quality. The quality mainly depends on the processing standard, processing type, processing quality, processing accuracy and so on. Mainly depends on the equipment, mainly divided into ordinary lathe processing (does not guarantee the thread size does not guarantee the straightness), single head
About drill pipe broken reasons probably have the following points:
1. Material and processing
(1)drill pipeMaterial. Nowadays, the market for drilling materials is relatively chaotic, and dishonest merchants are shoddy. The vast majority of users only consider low prices, but do not have the ability to distinguish the quality of pipes and purchase them indiscriminately. Many users spent high prices, bought sub-material pipes, and said plausibly how good their things are.
(2) Processing quality. The quality mainly depends on the processing standard, processing type, processing quality, processing accuracy and so on. Mainly depends on the equipment, mainly divided into ordinary lathe processing (does not guarantee the thread size does not guarantee the straightness), single-head CNC processing (to ensure the thread size does not guarantee the straightness), double-head CNC processing (to ensure the thread size to ensure the straightness);
(3) Heat treatment process. Such as tempering and hardening.
2. Supporting
1. RecommendationsDrill pipes and matching drill bits, reducer joints, faucets, etc. should be selected from the same manufacturer,
2, to ensure that the standard is unified, to achieve the best matching.
3、More than 2 manufacturers of things mixed use.
4, many users are Zhang San drill pipe Li si took over, so it is easy to break;
3. On-site use
(1) The pressure during operation should not be too high. Once the drill is stuck, it should not be beaten quite;
(2) In the process of relocation, you should take it lightly and not throw it about.
(3) In the process of removing the screw thread, do not use a sledgehammer to hit hard.
（4）drill pipeThere is a service life, beyond the service period, should be replaced as a whole. Can not change half or a few;
(5) found that the thread wear should be replaced immediately.
(6) Avoid the mixed use of the scrapped drill pipe and the new drill pipe.
4. Drilling technology
(1) Reasonable drill bit and drilling tool gradation, maintain a reasonable outer ring gap, use appropriate drag reduction agents, and maintain the lubricity of the mud,
Reduce the slewing resistance of the drilling tool.
(2) To prevent the drill pipe from breaking due to over-diameter drilling and bending of the drill tool.
(3) Reasonable drilling process parameters, too high bit pressure and too high speed will easily cause the drill pipe to break.
(4) In the case of complex stratum, the rope core drilling shall be used, and the corresponding treatment measures shall be adopted, otherwise the drill pipe will break
It keeps happening.
(5) Avoid strong upsetting and twisting during operation.
Key words:
Manufacturer, drill pipe, processing, guarantee, break, thread, use, cannot, quality, user
