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31
2019-05
Structural Difference Analysis of Spiral Geological Drill Pipe and Turbine Geological Drill Pipe
Spiral geological drill pipe and turbine geological drill pipe structural difference analysis Spiral geological drill pipe is now widely used in the domestic demand and application of a selection of geological alloy steel pipe through the conflict welding process planning and production of geological drilling tools. Considering the special geological conditions and different terrains, there are certain requirements for the bending strength, fatigue strength and shear strength of the geological drill pipe. Therefore, in the purchase, on its raw materials and production process to do to deepen the understanding. What is the structural difference between the spiral geological drill pipe and the turbine geological drill pipe? The turbine geological drill pipe is more complex than the spiral geological drill pipe, and the assembly requires accuracy.
2019-05-31
31
2019-05
Causes and Risk Analysis of Low Pressure Brittle Fracture of Geological Drill Pipe
Analysis of the Causes and Risks of Low Pressure Brittle Fracture of Geological Drill Pipe Geological drill pipe often encounters rock formations with hardness above medium weathered in the foundation construction, which requires a set of pile machine sharp tool with perfect configuration to improve our construction progress. Let's talk about the relevant contents of geological drill pipe, geological drill pipe-the cause and danger of low pressure brittle fracture of geological drill pipe! Low stress brittle fracture of geological drill pipe accounts for a large proportion of the whole drill string failure, and its risk is also very high. Low stress brittle fracture occurs in both geological drill pipe and drill string conversion joints. Such as brittle fracture of geological drill pipe welds and drill stand and drill string adapter screw
2019-05-31
31
2019-05
Detailed explanation of the operation procedures of triangular drill pipe
A triangular drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling equipment or bottom hole device at the bottom of the drilling. The purpose of the triangular drill pipe is to transport drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. The three-pronged drill pipe must be able to withstand huge internal and external pressure, distortion, bending and vibration. The operation rules of triangular drill pipe are as follows: 1. Apair the hole position. Do not form the operation of the triangular drill pipe, but be careful not to "don't" the triangular drill pipe. 2. Release the drill. Overcome the friction force of the hole wall under the action of the gravity of the triangular drill pipe and the drilling tool.
2019-05-31
30
2019-05
Drilling Analysis Details of Spiral Drill Pipe
The drilling process of the spiral drill pipe: pressurize and rotate forward at an appropriate rotation speed. It can only be carried out when the drill pipe is completely locked. Avoid pressurization during the locking process, that is, use the machine locking drill pipe as a friction drill pipe, because the forward rotation drilling during pressurization will cause the pressure pair to join and crush the lock point. -Precautions for Spiral Drill Pipe of Yikuang Science and Technology (I) According to geological characteristics, when drilling under pressure in forward rotation, the pressure sometimes needs to be alternated between "large and small", but the small pressure is not zero pressure, let alone "negative pressure". "Zero plus pressure" and "negative plus pressure" will cause the pressurization process "off-lock" and "partial lock bar" phenomenon, resulting in
2019-05-30
29
2019-05
Maintenance of spiral drill pipe
Spot welding and arc striking on the spiral drill pipe are prohibited for the maintenance of the spiral drill pipe. After using the long spiral drill pipe to drill a shallow hole for a period of time, the spiral drill pipe should be pulled apart to clean up the sediment between the spiral drill pipes. After the burying accident, the gravel sand between the spiral drill pipes must be cleaned. After drilling in the more viscous mud, the auger pipe must be cleaned.
2019-05-29
28
2019-05
Precautions for cleaning and maintenance of drill pipe joints
Drill pipe joint cleaning and maintenance of the matters needing attention on the cleaning and maintenance of drill pipe joints, including what aspects? Let's take a look at: 1, hydraulic parts disassembly, cleaning should be in line with national standards in the purification room, such as the conditions of the operating room is best to charge, so that the indoor pressure is higher than the outdoor, to prevent atmospheric dust pollution. If the conditions are limited, the operating room should also be isolated separately. Generally, hydraulic parts assembly room and machining room or fitter room are not allowed to be in the same room. It is absolutely forbidden to decompose and assemble hydraulic parts in the open air, shed, utility room or warehouse. When disassembling and assembling hydraulic parts, the operator should wear a work with fibers that are not easy to fall off.
2019-05-28
28
2019-05
How to save geological spiral drill pipe? How to prevent breakage?
The geological spiral drill pipe plays an important role in the drilling process. It transmits the torque of the drilling rig to the drill bit to realize drilling. In the drilling, the geological spiral drill pipe is subjected to a very complex load, almost at the same time under the tension, compression, torsion, bending and other stresses, the quality of the geological spiral drill pipe plays a vital role in the drilling work. The common reasons for the fracture of the geological spiral drill pipe are as follows: 1. The trenchless geological spiral drill pipe has been used for too long and has more surface damage, which is close to or exceeds the fatigue life. Replace the new geological spiral drill pipe in time. 2, geological spiral drill pipe body material, thickness does not meet the technical regulations
2019-05-28
27
2019-05
The operating procedures of the drill pipe are as follows and the form of abrasive wear
The operating procedures of the drill pipe are as follows and the form of abrasive wear. The drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling equipment or bottom hole device at the bottom of the drilling. The purpose of the drill pipe is to carry drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand large torques, twists, bends and vibrations during rotation. During the drilling process, the drill pipe can be used multiple times. The operation procedures of drill pipe are as follows: 1. Apair the hole position. does not form an operation on the drill pipe,
2019-05-27
27
2019-05
Precautions for the use of spiral drill pipe
Precautions for the use of spiral drill pipe The spiral drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling equipment or bottom hole device at the bottom of the drilling. The purpose of the geological auger drill pipe is to transport drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. Geological spiral drill pipe must be able to withstand huge internal and external pressure, distortion, bending and vibration. Precautions for the Use of Geological Spiral Drill Pipe 1. When using it for the first time, it is necessary to "grind the new buckle" first. This includes the technological innovation of screw thread oil first, then use the drilling rig to tighten it with full strength, and then apply the screw thread when opening the buckle for domestic demand.
2019-05-27
27
2019-05
