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Sealed drill rod internal thread structure

An internal thread and sealing technology, which is applied in the direction of drill pipe, drill pipe, drilling equipment, etc., can solve the problems of insufficient stability, short service life, high use cost, etc., to improve the overall use effect, reduce use cost and prolong use The effect of longevity

Pending Publication Date: 2019-12-24
澳普洛钻探工具(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The internal thread structure of the sealing drill pipe in the prior art has unreasonable structural design, which leads to insufficient stability when it is connected with the external thread, which affects the use effect, short service life and high cost of use, which can no longer meet the production needs

Method used

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  • Sealed drill rod internal thread structure
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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with examples and specific implementation methods.

[0012] Such as figure 1 , figure 2 As shown, the internal thread structure of the sealing drill pipe includes the internal thread body 1 and the thread end sealing surface 2 and the thread bottom surface sealing surface 3 at both ends of the internal thread body 1. There is no thread sharp corner (removal) on the internal thread body 1, The thread pitch is 8.47mm, the thread taper is 1°, the thread length 11 is 44.49±0.04mm, the thread effective length 12 is 42.9mm, the diameter of the cylinder where the top surface of the internal thread is 83.18 (+0.03-0.02) mm, the cylinder where the bottom surface of the internal thread is located The diameter is 84.71(+0.012-0.014)mm,

[0013] Among them, the angle 21 of the sealing surface of the thread end surface 2 is 15°, the angle 21 of the sealing surface of the bottom surface of the thread is...

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Abstract

The invention discloses a sealed drill rod internal thread structure. The structure comprises an internal thread main body, a thread end surface sealing surfaces at the two ends of the internal threadmain body, and a thread bottom surface sealing surface; the thread pitch is 8.47 mm; the thread taper is 1 degree; the total thread length is 44.49+-0.04 mm; the effective thread length is 42.9 mm; the diameter of a cylinder of the top surface of the internal thread is 83.18(+0.03-0.02) mm; the diameter of a cylinder of the bottom surface of the internal thread is 84.71(+0.012-0.014) mm; the included angle of the thread end surface sealing surfaces is 15 degrees; the width of the thread end surface sealing surfaces is 4.95+-0.21 mm; and the included angle of the thread bottom surface sealingsurface is 15 degrees. The structure has the advantages of reasonable structural design, capability of effectively improving the connecting stability with the internal thread, improvement of the overall use effect of a sealed drill rod, prolonging of the service life and reduction of the use cost.

Description

technical field [0001] The invention relates to a sealing drill rod internal thread structure. Background technique [0002] The geological prospecting of the present invention refers to the exploration and detection of the geology, the determination of a suitable bearing layer, the determination of the foundation type and the calculation of the foundation parameters according to the foundation bearing capacity of the bearing layer. Mineral deposits with industrial significance can be found in the general survey of minerals. In order to find out the quality and quantity of minerals, as well as the technical conditions for mining and utilization, provide mineral reserves and geological data required for mine construction design, and analyze rocks and strata in a certain area Conduct investigation and research work on geological conditions such as geology, structure, mineral resources, hydrology, and landforms. Geological exploration requires the use of sealed drill pipe, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/042
CPCE21B17/042
Inventor 方坤顾光辉
Owner 澳普洛钻探工具(无锡)有限公司