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  • Drilling deformation characteristics and chip shape of drill bit

    Deformation law and steering during drilling. However, the NC bit drilling is carried out in a semi enclosed space, and the transverse edge of the cutting angle is unreasonable, which makes the drilling deformation more complex. The main points are as follows: 1) the inclination of the front edge...
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  • Knowledge popularization of upper corner of return air in fully mechanized coal mining face

    What is the upper corner of return air in coal face? Corner (Yu, er Sheng) means corner, and corner refers to the position of the corner. The upper corner is generally a mining term, which refers to the return air side of the coal mining face and the triangular zone close to the upper side of the...
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  • Steps of processing technology of integral (integrated) drill pipe

    The male buckle end is heated by medium frequency and roughened for the first time 2. Medium frequency heating, second forging and roughening   3. Grinding   4. Medium frequency heating, the third imperial rent thickening   5. Medium frequency heating, processing of the fourth loca...
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  • Processing technology of integral (integrated) drill pipe

    The drill pipe joint and the drill pipe body of the integral drill pipe are directly connected by male and female buckles. The thickened structure of the drill pipe body, the outer wall and inner wall of the drill pipe joint are of the integral thickened structure. The processing process is that ...
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  • Performance requirements of wireline drill pipe measured while drilling

    The wireline drill pipe is the component with the most complex stress and the worst working condition in the process of directional drilling. In the process of drilling, the central wireline drill pipe should not only bear the push and pull exerted by the drilling rig and the reverse torque of th...
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  • Four technical characteristics of wireline drill pipe

    1、 Drill rod body   The drill pipe body is produced with G105 and S135 oil pipes conforming to API standards. Through overall heat treatment, the overall mechanical properties can be improved and the service life can be prolonged. In order to reduce the connection points of the drill pipe a...
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  • Main functions of wireline directional drill pipe

    Wireline directional drill pipe is an important part of directional drilling equipment. It is a component with complex stress and bad working conditions in the process of directional drilling. Its main functions include:   1) Transmit the axial pressure exerted by the bit during drilling to ...
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  • Components of wireline drill pipe

    The wireline drill pipe is composed of the following components:   Outer pipe outer connector, sealing ring, outer connector thread, inner core of transmission line, inner connector of transmission line, outer connector of transmission line, support ring, negative pole of inner core of trans...
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  • Directional bit diamond directional bit mining technology

    Directional drilling is a drilling method that uses the natural bending law of the borehole or uses artificial inclining tools to extend the directional borehole to the predetermined target according to the design requirements. It can also be interpreted as the technology and science of drilling ...
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  • Maintenance knowledge of triangular drill pipe

    The triangular drill pipe should be maintained regularly, especially in winter. Yikuang Xiaobian will explain the use and maintenance of triangular drill pipe in winter. 1. The triangular drill pipe shall be maintained regularly, especially in winter. The maintenance cycle shall be determined acc...
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  • Do you understand the importance of precautions for the use of drill pipe?

    The drill pipe is a steel pipe with a groove at the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the drilling rig. The purpose of drill pipe is to transport drilling mud to the bit and raise...
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  • Application of long Cardan spiral drill pipe

    Any product needs to be operated in the right way. Spiral drill pipe is a kind of equipment that can be used in geological engineering and other construction engineering. In the process of using the equipment, we need to know the precautions for using the drill pipe. 1. The drilling rig shall be ...
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  • Use and precautions of spiral drill pipe — Yikuang

    Any product needs to be operated in the right way. Spiral drill pipe is a kind of equipment that can be used in geological engineering and other construction engineering. In the process of using the equipment, we need to know the precautions for using the drill pipe. 1. The drilling rig shall be ...
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