CN218563588U

CN218563588U - Drilling deflecting tool

Info

Publication number: CN218563588U
Application number: CN202221584324.0U
Authority: CN
Inventors: 周荣书; 张伦永; 苟键; 高红; 伏庭绍; 谭国宾; 张国功; 张治安
Original assignee: Yunnan South Geological Exploration Engineering Co ltd
Current assignee: Yunnan South Geological Exploration Engineering Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2023-03-03
Anticipated expiration: 2032-06-23

Abstract

The utility model provides a drilling deflecting tool, it includes that the bottom establishes the stand pipe of side mouth, connecting piece is established at the top to its characterized in that, locates the inclined plane of leading on the stand pipe bottom inner wall, should lead the inclined plane and establish to bellied inclined plane, and its incline direction is corresponding with the side mouth position. The guide pipe is arranged at the bottom of the sleeve through a connecting piece at the top of the guide pipe, and then the running direction of the drill bit is deflected through a guide inclined plane in the guide pipe so as to change the drilling direction. The side opening of the guide pipe is provided with a drill bit which is convenient for the inclined drill bit to penetrate out, and the purpose that the drill hole bypasses the accident drill bit or the position is changed to supplement the core is achieved.

Description

Drilling deflecting tool

Technical Field

The utility model relates to an instrument, especially a drilling deflecting tool belongs to probing tool manufacturing and designing technical field.

Background

In the geological core drilling construction process, a condition that a deep hole section more than 1000 meters is subjected to malignant in-hole accidents to cause scrapped drilling, and a condition that the rock core sampling rate is low and the requirement of mineral geological research cannot be met in the deep hole section more than 500-1000 meters is generated. When both of these conditions occur, it is necessary to use a whipstock tool to change the angle of the borehole so that it can bypass the emergency drill bit or change the location to supplement the core extraction. The existing deflecting tool has a great deal of inconvenience in use, complex operation and complex installation, and a large-angle inflection point is easy to appear, so that the drilling load is increased. There is therefore a need for improvements in the prior art.

Disclosure of Invention

For solving current deflecting tool and having the operation complicacy, install loaded down with trivial details, use inconvenient scheduling problem, the utility model provides a drilling deflecting tool.

The utility model discloses a following technical scheme: a drilling deflecting tool is characterized by comprising a guide pipe with a side opening at the bottom and a connecting piece at the top, and a guide inclined plane arranged on the inner wall of the bottom of the guide pipe, wherein the guide inclined plane is a raised inclined plane, the inclined direction of the guide inclined plane corresponds to the position of the side opening, so that the guide pipe is arranged at the bottom of a sleeve through the connecting piece at the top of the guide pipe, a drill bit is deflected through the guide inclined plane in the guide pipe to change the drilling direction, the side opening is provided with a drill bit which is convenient to deflect, and the purpose of bypassing an accident drill bit or changing the position to supplement a rock core for taking is achieved.

The utility model discloses a drilling tool, including casing, stand pipe, connecting piece, casing bottom, casing top, the stand pipe is established to upper and lower open cylindrical vertical pipeline, and stand pipe internal diameter, external diameter are unanimous with drilling tool sleeve pipe internal diameter, external diameter, and the connecting piece is established to the external screw thread, and on it located stand pipe top outer wall, the external screw thread was connected to the internal thread looks spiro union of locating the casing bottom to be connected to the stand pipe on the sleeve pipe.

The side mouth is seted up on the stand pipe bottom lateral wall, and the side mouth lower extreme is uncovered under with the stand pipe and is linked together to make the drill bit of skew can wear out the stand pipe smoothly through the side mouth, avoid blockking the emergence of problem.

The guide inclined plane is arranged on the inner wall of the bottom of the guide pipe opposite to the side opening, the guide inclined plane is arranged to be an arc-shaped protrusion arranged along the inner wall, the arc-shaped protrusion is arranged to be an inclined plane gradually protruding towards the axis from top to bottom, and therefore the drill bit is guided to be in an inclined state from a vertical state through the inclined plane.

The inclination angle of the guide inclined plane is set according to requirements, and when the guide inclined plane is installed, the inclination direction is determined according to the required azimuth angle, and finally directional inclination is achieved.

At least one reinforcing arc-shaped annular plate is arranged on the guide pipe and positioned on the outer pipe wall of the guide inclined plane, so that when the guide pipe is used in an inclined hole, the strength of the guide inclined plane is further increased, the large drill rod drill bit is prevented from moving back after being inclined, the gap between the guide pipe and the hole wall is reduced to the maximum extent, and the deflecting reliability is improved.

The utility model has the advantages and effects of: by adopting the scheme, the guide pipe is arranged at the bottom of the sleeve through the connecting piece at the top of the guide pipe, and then the running direction of the drill bit is deflected through the guide inclined plane in the guide pipe, so that the drilling direction is changed. The side opening of the guide pipe is provided with a drill bit which is convenient for the inclined drill bit to penetrate out, and the purpose that the drill hole bypasses the accident drill bit or the position is changed to supplement the core is achieved. The utility model has the advantages of simple structure, convenient installation and obvious effect. The drilling deflecting tool is an ideal drilling deflecting tool.

Drawings

FIG. 1 is a view of the structure of the present invention;

fig. 2 is a diagram illustrating the usage status of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides a drilling deflecting tool, it includes that the bottom establishes side mouth 5, the stand pipe 2 of connecting piece 3 is established at the top, locate leading inclined plane 1 on the inner wall of stand pipe 2 bottom, should lead inclined plane 1 and establish to bellied inclined plane, its incline direction corresponds with side mouth 5 position, so that install stand pipe 2 in the bottom of sleeve pipe 4 through connecting piece 3 at stand pipe 2 top, lead inclined plane 1 and make drill bit 6 produce the incline and change drilling direction through in the stand pipe 2, side mouth 5 sets up the drill bit 6 that is convenient for the incline and wears out from it, realize that drilling bypasses the purpose that accident drill bit or change the position supplyes the core of rock and take;

the guide pipe 2 is a cylindrical vertical pipeline with an upper opening and a lower opening, the inner diameter and the outer diameter of the guide pipe 2 are consistent with those of the sleeve 4, the connecting piece 3 is provided with an external thread which is arranged on the outer wall of the top of the guide pipe 2, and the external thread is in threaded connection with the internal thread arranged at the bottom of the sleeve 4 so as to connect the guide pipe 2 to the sleeve 4;

the side opening 5 is formed in the side wall of the bottom of the guide pipe 2, and the lower end of the side opening 5 is communicated with the lower opening of the guide pipe 2, so that the offset drill bit 6 can smoothly penetrate out of the guide pipe 2 through the side opening 5, and the blocking problem is avoided;

the guide inclined plane 1 is arranged on the inner wall of the bottom of the guide pipe 2 opposite to the side port 5 and is provided with an arc-shaped bulge arranged along the inner wall, and the arc-shaped bulge is an inclined plane gradually bulging towards the axis from top to bottom so as to guide the drill bit 6 from a vertical state to an inclined state through the inclined plane;

the inclination angle of the guide slope 1 is set according to the requirement, and when the guide slope is installed, the deflection direction is determined according to the required azimuth angle, and finally the directional deflection is realized.

Two reinforcing arc-shaped annular plates 21 are arranged on the guide pipe 2 and positioned on the outer pipe wall of the guide inclined plane 1, so that when the drill guide pipe is used in an inclined hole, the strength of the guide inclined plane 1 is further increased, the drill bit of a large-sized drill rod is prevented from moving back after being inclined, the gap between the guide pipe 2 and the hole wall is reduced to the maximum extent, and the deflecting reliability is improved.

Claims

1. A drilling deflecting tool is characterized by comprising a guide pipe and a guide inclined plane, wherein the bottom of the guide pipe is provided with a side opening, the top of the guide pipe is provided with a connecting piece, the guide inclined plane is arranged on the inner wall of the bottom of the guide pipe, the guide inclined plane is a convex inclined plane, and the inclined direction of the guide inclined plane corresponds to the position of the side opening;

the side opening is formed in the side wall of the bottom of the guide pipe, and the lower end of the side opening is communicated with the lower opening of the guide pipe;

the guide inclined plane is arranged on the inner wall of the bottom of the guide pipe opposite to the side opening and is provided with an arc-shaped bulge arranged along the inner wall, and the arc-shaped bulge plane is an inclined plane gradually bulging towards the axis from top to bottom;

and at least one reinforcing arc-shaped annular plate is arranged on the guide pipe and positioned on the outer pipe wall of the guide inclined surface.

2. The tool according to claim 1, wherein the guide tube is a cylindrical vertical pipe having an upper opening and a lower opening, an inner diameter and an outer diameter of the guide tube are identical to those of the casing, and the connecting member is an external thread provided on an outer wall of a top portion of the guide tube and threadedly engaged with an internal thread provided on a bottom portion of the casing.

3. The borehole whipstock tool of claim 1 wherein the angle of inclination of the lead ramp is set as desired.