Drill hole middle section casing pipe dispenser

A technology for injectors and casings, which is applied in the direction of drill pipes, casings, drilling equipment and methods, etc., and can solve the problems of inconvenient casing insertion in the middle of drilling

Pending Publication Date: 2021-08-10
王欢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the very inconvenient problem of inserting the casing in the middle of the bore

Method used

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  • Drill hole middle section casing pipe dispenser

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Embodiment Construction

[0012] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0013] see figure 1 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, term...

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Abstract

The invention discloses a drill hole middle section casing pipe dispenser, and relates to the technical field of geological core drilling construction. The drill hole middle section casing pipe dispenser comprises a limiting column body, a mounting seat is arranged at the bottom of the limiting column body, a dispenser seat is fixedly connected to the base surface of the mounting seat through a bolt, a hexagonal hole is formed in the center of the top surface of the dispenser seat, a core rod is slidably connected to the inner wall of the hexagonal hole, three square holes are formed in the outer wall of the dispenser seat in an annular array mode, three sliding blocks are slidably connected to the inner walls of the three square holes, counter bores are formed in the side walls of the sliding blocks, magnets are fixedly connected to the inner walls of the counter bores, a casing pipe is in threaded connection with the outer wall of the dispenser seat, a mounting drilling tool is slidably connected to the inner wall of the casing pipe, and a spring is connected between the sliding blocks and the limiting column body. The problem that the casing pipe in the middle section of a drill hole is very inconvenient to put is solved.

Description

technical field [0001] The invention relates to the technical field of geological core drilling construction, in particular to a casing dispenser in the middle of a borehole. Background technique [0002] In geological core drilling (well) construction, complex strata such as: broken, expanded, karst caves, etc. are often encountered, and the problems caused by them, such as falling blocks, collapse, and groundwater in the borehole, will bring great impact to the subsequent construction. The current solution is to separate complex formations with casing. Because complex strata are often deeply buried, the cost of running the casing in the entire hole section is relatively high. Therefore, during engineering construction, casings (commonly known as "flying tubes") will only be run in this section of complex strata to isolate it and ensure subsequent construction. able to proceed normally. The current methods of putting in the casing are as follows: 1. Select the upper and l...

Claims

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Application Information

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IPC IPC(8): E21B7/20E21B17/10E21B31/20
CPCE21B7/20E21B17/1078E21B31/20
Inventor 王欢李慧陈永乐卜习银
Owner 王欢
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