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Raised drilling machine large drill removing method, inverted basket and drill removing structure

A technology for drilling rigs and drilling rig power heads, which is applied to drilling equipment, drill pipes, drill pipes, etc. It can solve the problems of drill pipe disconnection, etc., and achieve the effect of improving safety factor and considerable safety benefits

Active Publication Date: 2019-01-08
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When raising two or more drill holes in succession, the large drill bit in the No. 1 hole is reamed and lowered to the lower port again to solve the transfer problem of the large drill bit and prepare for the expansion of the No. 2 hole. Reduce the labor intensity of the workers and shorten the construction time, but during the process of reversing and unloading the large drill bit after being lowered to the position, the drill pipe is disconnected from the middle. After the drill pipe is disconnected from the middle, the remaining drill pipe will tilt due to its own weight. can't do it

Method used

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  • Raised drilling machine large drill removing method, inverted basket and drill removing structure
  • Raised drilling machine large drill removing method, inverted basket and drill removing structure

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, an inverted basket 1, the inverted basket 1 includes a basket body 11, the basket body 11 is a steel column, the bottom of the basket body 11 is welded and fixed with an inverted basket ring 12, and the upper end is provided with an external thread connected with a drill pipe 13. The inverted basket ring 12 is formed by bending steel bars and welding the basket body 11.

Embodiment 2

[0028] Such as figure 2 As shown, the anti-drilling machine large drill bit drop drilling method is characterized in that: comprising the following steps:

[0029] Step 1. First remove 19 of the 20 drill pipes 2 connected to the drilling rig 4, leaving only one drill pipe 2 to install the inverted basket 1;

[0030] Step 2. Thread a 90m-long φ18.5mm steel wire rope 3 inside the inverted basket ring 12 so that the two sides of the steel wire rope 3 are equal in length; fix the steel wire rope 3 with an ingot card at the bottom of the inverted basket ring 12;

[0031] Step 3. The drill rig 4 is connected to the 19 drill pipes 2 that were previously removed, and the basket 1 is turned upside down to the position where the drill pipes 2 are disconnected. The steel wire rope 3 stuck on the basket 1 is slowly dropped to the lower opening of the small eye;

[0032] Step 4. Go down to the lower opening of the small eye and use the ingot card to lock the big drill bit 5 with the ends...

Embodiment 3

[0039] A drill drop structure of a large drill bit 5 of an anti-drilling rig, comprising an inverted basket 1, a steel wire rope 3, and a limit ring 6; the inverted basket 1 is fixed on the drill pipe 2, and is gradually lowered to the lower opening of the small hole through the drilling machine 4; the inverted basket 1 includes an inverted basket ring 12, a steel wire rope 3 is worn inside the ring, and the two rope ends of the steel wire rope 3 are respectively fixed with the big drill bit 5; the big drill bit 5 is fixed with an indwelling drill pipe 8; the limit ring 6 is set on the two steel wire ropes 3 and Stay on the drilling rod 8, and carry it to the upper end of the drilling rod 8 by the traction rope, so that the upper end of the drilling rod 8 is in the middle position of the lower opening of the ommatidium.

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Abstract

The invention provides a raised drilling machine large drill removing method which comprises the steps of installing the inverted basket on a drill rod, fixing a steel wire on the inverted basket, fixing a large drill by using a steel wire, and retaining a remaining drill through a limit ring, and therefore, the drill rod does not poke a rock wall when the large drill is lifted. The invention hasthe advantages that the use of the inverted basket plays a key role in the handling of an accident, the problem of fixing the steel wire at a place is solved, the problem that people enters a small hole to process drill rod connection is avoided, the safety factor in the handling of an accident is greatly improved, and safety benefits are particularly impressive. The method is simple and practicaland ends only with one small shift in an actual operation. In addition, the limit ring is employed, with the cooperation of the tension of the two steel wires, the retaining drill can be pulled to amiddle position in the small hole, and a problem that the drill rod pokes to the rock wall when the retain drill is lifted is avoided.

Description

technical field [0001] The invention relates to the technical field of anti-drilling rig large drill bit drop-off treatment technology, in particular to an anti-drilling rig large drill bit drop-off method, an inverted basket, and a drill-drop structure. Background technique [0002] When raising two or more drill holes in succession, the large drill bit in the No. 1 hole is reamed and lowered to the lower port again to solve the transfer problem of the large drill bit and prepare for the expansion of the No. 2 hole. Reduce the labor intensity of the workers and shorten the construction time, but during the process of reversing and unloading the large drill bit after being lowered to the position, the drill pipe is disconnected from the middle. After the drill pipe is disconnected from the middle, the remaining drill pipe will tilt due to its own weight. It cannot be done. How to lift the indwelling drill pipe and the drill bit left in the borehole after disconnection from ...

Claims

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Application Information

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IPC IPC(8): E21B31/12E21B19/18
CPCE21B19/18E21B31/12
Inventor 张金虎宗磊李正来
Owner HUAINAN MINING IND GRP
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