A multifunctional outburst prevention drill pipe

A multi-functional, anti-outburst technology, applied to drill pipes, drill pipes, drilling equipment, etc., can solve problems such as hole plugging, drilling slag deposition, and reduction of drilling power

Inactive Publication Date: 2011-11-30
平顶山市中矿机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides a method that completely solves problems such as hole plugging, drill jacking, injection holes, locked drill pipe, and slag deposition in the drill hole, keeps the slag discharge channel unblocked, and reduces the drilling Multi-functional anti-outburst drill pipe with higher feed rate, improved drilling depth and hole quality

Method used

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  • A multifunctional outburst prevention drill pipe
  • A multifunctional outburst prevention drill pipe
  • A multifunctional outburst prevention drill pipe

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Embodiment Construction

[0011] like figure 1 and figure 2 As shown in the figure, a multifunctional anti-outburst drill rod of the present invention includes a hollow cylindrical rod body 1, two ends of the rod body 1 are respectively provided with a male connector 2 and a female connector 3, and the rod body 1 is axially provided with at least one set of The rib structure, each group of rib structures is composed of line segment-shaped rib strips 4 axially arranged on the surface of the rod body 1, and the rib strips 4 in each group of rib structures are uniformly arranged three times along the circumference of the rod body . The rib 4 is arranged on the rod body 1 by plasma cladding technology, and the rib 4 of the adjacent two groups of rib structures has an axial cross section, and one rib 4 is connected to two adjacent rib. The bars 4 are equally spaced vertically. The outer edge of the cross-section of the rib 4 is formed by a circular arc line segment 5 and a straight line segment 6 extend...

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Abstract

The invention discloses a multi-functional outburst prevention drill rod, which comprises a hollow cylindrical rod body, and the two ends of the rod body are respectively provided with a convex joint and a concave joint. Each set of rib structures is composed of linear segment-shaped ribs arranged axially on the surface of the rod body, and there are at least two ribs in each set of rib structures. The invention is simple in structure, easy to process and manufacture, can completely solve problems such as hole plugging, top drilling, spray hole, locked drill pipe, and drilling slag deposition in drilling holes, keep the slag discharge channel unblocked, reduce drilling power, and increase drilling depth and pore-forming quality, have strong practicability, and are easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of comprehensive gas treatment in coal mines, and particularly relates to a multifunctional anti-outburst drill pipe which is aimed at the construction of extraction and drilling holes with large soft coal seam stress, large gas gushing amount and difficult drilling. Background technique [0002] At present, in view of the large soft ground stress in the coal seam, the large amount of gas gushing, and the difficulty in drilling, the construction of the extraction drilling mainly adopts the drilling of polished rods, three-shuttle drill rods, rib drill rods (welded with screw-applied steel strips) and other types of drill rods. , relying on wind or hydraulic slag discharge (in this drilling method, the drill bit is larger than the diameter of the drill pipe, and under the action of high-pressure air or water flow, the drill slag is discharged from the gap between the drill pipe and the hole wall), under normal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/00
Inventor 刘洪亮朱同功段洪普张广彦李广涛冯艳召边旭阳
Owner 平顶山市中矿机械制造有限公司
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