CN216197985U - Device for sealing rescue drill hole - Google Patents
Device for sealing rescue drill hole Download PDFInfo
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- CN216197985U CN216197985U CN202122541789.XU CN202122541789U CN216197985U CN 216197985 U CN216197985 U CN 216197985U CN 202122541789 U CN202122541789 U CN 202122541789U CN 216197985 U CN216197985 U CN 216197985U
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Abstract
The utility model provides a device for sealing a rescue borehole, which comprises a sealing plug, a breakable connecting piece and a support rod, wherein the upper end of the breakable connecting piece penetrates through the middle part of the sealing plug and is connected with a drill rod, the lower end of the breakable connecting piece is connected with the support rod, and the breakable connecting piece can be disconnected from the middle part under the action of external force. The utility model adopts the mode of the supporting rod to bridge and carry out hole sealing, can ensure successful bridging, and simultaneously the sealing plug can bear larger upper pressure, thereby greatly improving the success rate and the quality of hole sealing.
Description
Technical Field
The utility model relates to a mine emergency rescue device, in particular to a device for hole sealing of a rescue drill hole.
Background
The emergency rescue drilling for mine disaster accidents is generally a through-roadway drilling, and when the stable water yield of the stratum is not large, the drilling is generally completed in a bare hole mode in order to strive for rescue time. After the rescue work is finished, the rescue drill hole must be sealed by strict measures, otherwise, water in the water-containing stratum flows into a production mine through the drill hole to threaten the safety production of the mine.
The plugging difficulty of the rescue drill hole is very high, and particularly after the drill hole is communicated with a mine tunnel and a production working face, a well section at the upper part of a top plate needs to be bridged, so that hole sealing materials cannot flow into the tunnel and the mine. In order to effectively seal an aquifer, a cement mortar hole sealing method is generally adopted in the prior art, as shown in fig. 1, a sealing plug 13 (having the characteristic of water swelling) is firstly conveyed to a proper position in a drill hole 100 by a drill rod, a period of time is waited for, the water in the stratum permeates the sealing plug to enable the sealing plug to swell and be attached to a well wall, then cement mortar 102 is driven into the drill hole 100 by a pump, and after cement is solidified, the drill hole is filled with cement mortar, so that the purpose of sealing the drill hole is achieved.
The disadvantages of this method are:
1) the sealing plug is not easy to be fixed at the specified position of the drilled hole, and the bridging position cannot be accurately controlled.
2) After the sealing plug reaches the designated well section, a certain time is needed to wait for the water in the stratum to penetrate through the sealing plug to expand and closely adhere to the well wall, so that the time consumption is long.
3) The sealing plug and the friction force of the well wall balance the gravity of the sealing cement mortar, and the sealing plug is easy to crush, so that the sealing failure is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the utility model provides a device for sealing holes of rescue drilling holes and a using method thereof.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a device for hole sealing of rescue drilling, is including sealing the stopper, can break connecting piece and bracing piece, the upper end of can breaking the connecting piece is passed and is connected with the drilling rod from the middle part of sealing the stopper, the lower extreme and the bracing piece of can breaking the connecting piece are connected, and can break the connecting piece and can break off from the middle part under the exogenic action.
The upper end of the breakable connecting piece is connected with a coupling head, and the breakable connecting piece is connected with the drill rod through the coupling head.
The connection between the lower end of the breakable connecting piece and the supporting rod is detachable.
The breakable connecting piece is a metal wire with a hook at the lower end.
The hook is connected with an iron chain, and the lower end of the iron chain is connected with the supporting rod.
The sealing plug is cylindrical.
The utility model has the technical effects that:
(1) the plugging position can be accurately controlled. Through the length of adjustment bracing piece, can go into appointed position in the well with the sealing stopper to reach the purpose of accurate control shutoff position. In the conventional hole sealing construction, the sealing plug may move downward under the gravity of the upper hole sealing material (cement slurry) due to no support, and the sealing position cannot be accurately controlled.
(2) After the sealing plug reaches the appointed well section, the drill rod continues to move downwards, the sealing plug is pressed downwards, the sealing plug is tightly attached to the hole wall in the radial deformation, and then fine sand and cement slurry can be poured in for hole sealing. The traditional hole sealing process needs to wait for a certain time to ensure that water in the stratum permeates the sealing plug to expand and is closely attached to the well wall, so that the time consumption is long.
(3) The gravity of plugging materials such as fine sand, cement paste and the like is mainly balanced by the supporting rod, the probability of the collapse of the sealing plug is extremely low, and successful bridging can be ensured. In the conventional hole sealing process, the gravity of hole sealing cement mortar is balanced mainly by the friction force between the sealing plug and the well wall, and the sealing plug is easy to crush, so that the hole sealing failure is caused.
Drawings
The utility model will be further explained with reference to the drawings
FIG. 1 is a schematic diagram of a cement mortar sealing method described in the background art;
FIG. 2 is a schematic structural diagram of an apparatus according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of the device according to embodiment 1 of the present invention in a state during use;
FIG. 4 is a schematic view of a second state of the device according to embodiment 1 of the present invention during use;
wherein:
100-drilling; 102-cement mortar; 103-a drill rod; 104-cement slurry; 105-fine sand; 200-roadway;
11-a coupling head; 12-iron wire; 13-sealing the stopper; 14-iron chain; 15-support rod
Detailed Description
Example 1
As shown in figure 2, the device for sealing the rescue drill hole comprises a sealing plug 13, a breakable connecting piece and a support rod 15, wherein the upper end of the breakable connecting piece penetrates through the middle of the sealing plug 13 and is connected with a drill rod, and the lower end of the breakable connecting piece is connected with the support rod 15.
In this embodiment, the breakable connection is a wire 12 with a hook at the lower end, and the portion of the wire 12 located at the upper part of the sealing plug 13 can be broken by an external force. The upper end of the iron wire 12 is connected with a coupling head 11, the coupling head 11 is used for being connected with the drill rod 103, and the coupling head 11 is sleeved outside the drill rod 103 to realize the connection of the whole device and the drill rod 103.
Be connected with iron chain 14 on the crotch of iron wire 12 lower extreme, the bottom and the bracing piece 15 of iron chain 14 are connected, realize through such connection that dismantling of bracing piece 15 and iron wire 12 bottom is connected, can change the bracing piece 15 of different length as required like this in the use to can realize accurate control shutoff position.
The use method of the device for sealing the rescue borehole comprises the following steps:
1) connecting the coupling head 11 with the drill rod 103, mounting the whole device at the bottom of the drill rod 103, feeding the device into the drill hole 100 by using the drill rod 103 and ensuring that the bottom of the support rod 15 is positioned at the bottom of the roadway 200;
2) after the whole device is in place, the drill rod 103 continues to move downwards, and the sealing plug 13 is pressed downwards, so that the sealing plug 13 deforms radially and is tightly attached to the hole wall of the drill hole 100;
3) continuing to rotate the drill rod 103 to disconnect the iron wire 12 from the middle part;
4) after the iron wire 12 is disconnected, the drill rod 103 is lifted for 5m, and then fine sand 105 is poured into the hole 100 of the drill hole through the drill rod 103, so that the upper part of the sealing plug 13 is ensured to have the fine sand 103 with the height of 5 m;
5) and finally, injecting cement slurry 104 into the fine sand to complete hole sealing operation.
The cement slurry has a water-cement ratio of 1: 1.3.
Those skilled in the art will recognize that a wide variety of modifications, alterations, and combinations can be made with respect to the above described embodiments without departing from the scope of the utility model, and that such modifications, alterations, and combinations are to be viewed as being within the ambit of the inventive concept.
Claims (6)
1. The utility model provides a device for rescuing drilling hole sealing, is including sealing stopper, can break connecting piece and bracing piece, its characterized in that, but the upper end of break connecting piece is passed and is connected with the drilling rod from the middle part of sealing stopper, but the lower extreme and the bracing piece of break connecting piece are connected, can break connecting piece from middle part disconnection under the exogenic action.
2. The device for sealing a rescue borehole according to claim 1, wherein a coupling head is connected to an upper end of the breakable connection, and the breakable connection is connected to the drill rod through the coupling head.
3. The device for sealing a rescue borehole according to claim 2, wherein the connection between the lower end of the breakable connection and the support rod is a detachable connection.
4. A device for sealing a rescue borehole according to any of claims 1-3, characterized in that the breakable connection is a wire with a hook at its lower end.
5. The device for sealing a rescue borehole according to claim 4, wherein an iron chain is connected to the hook, and a lower end of the iron chain is connected to the support rod.
6. Device for the sealing of rescue boreholes as claimed in claim 5, characterized in that the sealing plug is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122541789.XU CN216197985U (en) | 2021-10-21 | 2021-10-21 | Device for sealing rescue drill hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122541789.XU CN216197985U (en) | 2021-10-21 | 2021-10-21 | Device for sealing rescue drill hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216197985U true CN216197985U (en) | 2022-04-05 |
Family
ID=80886473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122541789.XU Active CN216197985U (en) | 2021-10-21 | 2021-10-21 | Device for sealing rescue drill hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216197985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863891A (en) * | 2021-10-21 | 2021-12-31 | 中煤地第二勘探局集团有限责任公司 | Device for sealing rescue drill hole and using method thereof |
-
2021
- 2021-10-21 CN CN202122541789.XU patent/CN216197985U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863891A (en) * | 2021-10-21 | 2021-12-31 | 中煤地第二勘探局集团有限责任公司 | Device for sealing rescue drill hole and using method thereof |
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