CN204827356U - Nearly competent pressure -bearing drilling hole sealing device - Google Patents
Nearly competent pressure -bearing drilling hole sealing device Download PDFInfo
- Publication number
- CN204827356U CN204827356U CN201520605626.5U CN201520605626U CN204827356U CN 204827356 U CN204827356 U CN 204827356U CN 201520605626 U CN201520605626 U CN 201520605626U CN 204827356 U CN204827356 U CN 204827356U
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- pipe
- hole
- bearing
- high pressure
- pressure
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Abstract
The utility model discloses a nearly competent pressure -bearing drilling hole sealing device, including slip casting pipe, fracturing pipe and get pulp pipe, drill way outside that should the drilling of high pressure -bearing has the expansion hole, and enlarges the interior step that forms between the drilling of kong yugao pressure -bearing and have and lie in the drilling of high pressure -bearing and go up the part above the generating line, slip casting pipe inner end is spends pipy a plurality of injected holes that are equipped with, the fracturing pipe lies in to be on the pipeline section of high pressure -bearing drilling inner end spends pipy a plurality of apopores that are equipped with, still is equipped with the flexibility on the fracturing pipe and hinders the thick liquid section, and this flexibility hinders thick liquid period number and manages between the inner end with slip casting in the floral tube section of fracturing pipe, the floral tube period number who is equipped with the get pulp hole on the get pulp pipe is downthehole in enlarging, and the nozzle position of get pulp pipe is higher than and expands the macroporous generating line of going up, and the mouth of pipe of slip casting pipe, fracturing pipe and get pulp pipe exposes that to enlarge the hole outside. The beneficial effects of the utility model are that, simple structure, hole sealing are fast, and the shrinkage joint can effectively be eliminated to the influence of the sealed effect of hole sealing to the hole sealing of its formation, and its hole sealing is effectual, the pressure -bearing is high.
Description
Technical field
The utility model relates to the hole sealing structure of near-horizontal hole, particularly a kind of nearly level high pressure-bearing drilling and sealing device.
Background technology
The sealing of hole of high pressure-bearing near-horizontal hole is applied wider in the extraction of coal-bed gas pressure break or bank protection are reinforced.Existing sealing of hole mode is included in pressure-bearing hole and forms cement mortar sealing of hole section and polyurethane sealing of hole section, due to the particularity of near-horizontal hole, when sealing of hole, cement mortar gravitate, hole pipe middle and lower part shutoff is tight, but the circular arc top of hole pipe easily occurs shrinkage joint, a tight shutoff cross section can not be formed, cause plugging effect poor.At present, the sealing of hole mode of back-grouting is mostly adopted to carry out sealing of hole, to reduce or to eliminate shrinkage joint.But bring the sealing of hole time long, the inefficient deficiency of sealing of hole.And nonetheless, be also difficult to reach the pressure-bearing hole sealing of hole requirement under high pressure.For this reason, require further improvement.
Summary of the invention
The purpose of this utility model is exactly for the deficiencies in the prior art, there is provided a kind of nearly level high pressure-bearing drilling and sealing device, this device is used for the outside sealing of hole with expanded hole in aperture of high pressure-bearing boring, and its structure is simple, sealing of hole speed is fast, sealing of hole is effective, and pressure-bearing is high.
For realizing aforementioned object, the utility model adopts following technical scheme.
A kind of nearly level high pressure-bearing drilling and sealing device, comprise Grouting Pipe, pressure break pipe and slurry recovering tube, the outside, aperture of this high pressure-bearing boring has expanded hole, and the interior step that expanded hole and high pressure-bearing are formed between holing has the part being positioned at high pressure-bearing and holing above Up Highway UHW; Described Grouting Pipe inner end be floral tube shape be provided with multiple injected hole; Described pressure break pipe be positioned at high pressure-bearing boring inner end pipeline section in floral tube shape be provided with multiple weep hole, pressure break pipe is also provided with flexible plasma resistance section, this flexible plasma resistance section is positioned between the floral tube section of pressure break pipe and Grouting Pipe inner end; Described slurry recovering tube is provided with the floral tube section returning slurry hole and is positioned at expanded hole, and the nozzle position of slurry recovering tube is higher than the Up Highway UHW of expanded hole, and the mouth of pipe of Grouting Pipe, pressure break pipe and slurry recovering tube exposes expanded hole outside.
Adopt this hole sealing device of preceding solution, after by cement paste grouting sealing of hole, the sealing of hole in high pressure-bearing hole can be made to form interior sealing of hole section and outer sealing of hole section, and the mode of the linkage section that in outer sealing of hole Duan Shangyu, sealing of hole section connects and interior sealing of hole segment sync grout injection solidify to form; Cement section diameter in its outer sealing of hole section is greater than interior sealing of hole section diameter, and has the cross section covering interior sealing of hole section Up Highway UHW part.Even if interior sealing of hole section Up Highway UHW position is formed with shrinkage joint, this shrinkage joint also can block by the cementing section part of outer sealing of hole section, and can not be through with the external world, thus guarantee sealing of hole effect, reach the object of high pressure-bearing.And structure is simple, sealing of hole is easy to operate, does not need to carry out back-grouting, and its sealing of hole speed is fast, and efficiency is high.This device both can utilize pressure break pipe carry out pressure break and pressure break anti-reflection after device in Gas extraction; Also pressure break pipe can be utilized to carry out draining, to be applicable to roadbed bank protection or crag reinforcing.
Preferably, described flexible plasma resistance section is being banded on pressure break pipe of horsetail shape by strip-shaped fibrous fabric.Guarantee that flexible plasma resistance section can forward enter in the boring of high pressure-bearing with pressure break pipe smoothly, again can reverse block water mud, and easy to make, low cost of manufacture.
Preferably, described slurry recovering tube is L-shaped, and the vertical section of L shape of slurry recovering tube is positioned at expanded hole outside.To make the grout filling consolidation in two sealing of hole sections, improve sealing of hole effect further.
Preferably, described Grouting Pipe is fixedly connected with by embracing folder with pressure break pipe.The two to be sent into together the boring of high pressure-bearing, improve sealing of hole operation convenience.
Preferably, the spout part of described Grouting Pipe and slurry recovering tube is provided with stop valve.To open and close in time, improve sealing of hole operation convenience.
Preferably, the mouth of pipe of described pressure break pipe is provided with snap joint.Be connected with gas drainage system or fracturing system to facilitate.
The beneficial effects of the utility model are, structure is simple, sealing of hole speed is fast, and its sealing of hole formed effectively can eliminate the impact of shrinkage joint on sealing of hole sealing effectiveness, and its sealing of hole is effective, pressure-bearing is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model hole sealing device.
Fig. 2 is the part-structure schematic diagram during the A-A of Fig. 1 analyses and observe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but therefore the utility model is not limited among described scope of embodiments.
See Fig. 1, Fig. 2, a kind of nearly level high pressure-bearing drilling and sealing device, comprise Grouting Pipe 3, pressure break pipe 4 and slurry recovering tube 5, the spout part of Grouting Pipe 3 and slurry recovering tube 5 is provided with stop valve 6, Grouting Pipe 3 is fixedly connected with by embracing folder 7 with pressure break pipe 4, and the mouth of pipe of pressure break pipe 4 is provided with snap joint 8; The outside, aperture of this high pressure-bearing boring 1 has expanded hole 2, and expanded hole 2 and high pressure-bearing are holed, the interior step that formed between 1 has the part being positioned at high pressure-bearing and holing above 1 Up Highway UHW; Described Grouting Pipe 3 inner end be floral tube shape be provided with multiple injected hole 31; Described pressure break pipe 4 be positioned at high pressure-bearing hole 1 inner end pipeline section in floral tube shape be provided with multiple weep hole 41, pressure break pipe 4 is also provided with flexible plasma resistance section 42, this flexible plasma resistance section 42 between the floral tube section and Grouting Pipe 3 inner end of pressure break pipe 4, this flexible plasma resistance section 42 by strip-shaped fibrous fabric be horsetail shape be banded on pressure break pipe 4; The mouth of pipe of Grouting Pipe 3 and pressure break pipe 4 exposes expanded hole 2 outside; Described slurry recovering tube 5 is L-shaped, and the vertical section of L shape of slurry recovering tube 5 is positioned at expanded hole 2 outside, and the L shape horizontal segment of slurry recovering tube 5 is provided with the floral tube section returning slurry hole 51 and is positioned at expanded hole 2, and the nozzle position of slurry recovering tube 5 is higher than the Up Highway UHW of expanded hole 2.
When applying this device sealing of hole, first form the long polyurethane block section 2a of 1m at expanded hole 2; Multiple injected holes 31 that grout pouring is provided with by floral tube shape inner end in Grouting Pipe 3 realize, return slurry by slurry recovering tube 5 horizontal segment be provided with return slurry hole 51 flow in slurry recovering tube 5, the stop valve 6 of orderly close-down slurry recovering tube 5 and Grouting Pipe 3 mouth of pipe after slip casting completes.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (6)
1. a nearly level high pressure-bearing drilling and sealing device, comprise Grouting Pipe (3), pressure break pipe (4) and slurry recovering tube (5), it is characterized in that, the outside, aperture of this high pressure-bearing boring (1) has expanded hole (2), and expanded hole (2) and high pressure-bearing are holed, the interior step that formed between (1) has the part being positioned at high pressure-bearing and holing above (1) Up Highway UHW; Described Grouting Pipe (3) inner end be floral tube shape be provided with multiple injected hole (31); Described pressure break pipe (4) be positioned at high pressure-bearing boring (1) inner end pipeline section in floral tube shape be provided with multiple weep hole (41), pressure break pipe (4) is also provided with flexible plasma resistance section (42), this flexible plasma resistance section (42) is positioned between the floral tube section of pressure break pipe (4) and Grouting Pipe (3) inner end; Described slurry recovering tube (5) is provided with the floral tube section returning slurry hole (51) and is positioned at expanded hole (2), and the nozzle position of slurry recovering tube (5) is higher than the Up Highway UHW of expanded hole (2), the mouth of pipe of Grouting Pipe (3), pressure break pipe (4) and slurry recovering tube (5) exposes expanded hole (2) outside.
2. nearly level high pressure-bearing drilling and sealing device according to claim 1, it is characterized in that, described flexible plasma resistance section (42) is being banded on pressure break pipe (4) of horsetail shape by strip-shaped fibrous fabric.
3. nearly level high pressure-bearing drilling and sealing device according to claim 1 and 2, it is characterized in that, described slurry recovering tube (5) is L-shaped, and the vertical section of L shape of slurry recovering tube (5) is positioned at expanded hole (2) outside.
4. nearly level high pressure-bearing drilling and sealing device according to claim 1 and 2, is characterized in that, described Grouting Pipe (3) is fixedly connected with by embracing folder (7) with pressure break pipe (4).
5. nearly level high pressure-bearing drilling and sealing device according to claim 1 and 2, it is characterized in that, the spout part of described Grouting Pipe (3) and slurry recovering tube (5) is provided with stop valve (6).
6. nearly level high pressure-bearing drilling and sealing device according to claim 1 and 2, it is characterized in that, the mouth of pipe of described pressure break pipe (4) is provided with snap joint (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605626.5U CN204827356U (en) | 2015-08-11 | 2015-08-11 | Nearly competent pressure -bearing drilling hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605626.5U CN204827356U (en) | 2015-08-11 | 2015-08-11 | Nearly competent pressure -bearing drilling hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827356U true CN204827356U (en) | 2015-12-02 |
Family
ID=54684967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520605626.5U Expired - Fee Related CN204827356U (en) | 2015-08-11 | 2015-08-11 | Nearly competent pressure -bearing drilling hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064950A (en) * | 2015-08-11 | 2015-11-18 | 重庆市能源投资集团科技有限责任公司 | Approximately horizontal high-pressure-bearing drill hole sealing device |
-
2015
- 2015-08-11 CN CN201520605626.5U patent/CN204827356U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064950A (en) * | 2015-08-11 | 2015-11-18 | 重庆市能源投资集团科技有限责任公司 | Approximately horizontal high-pressure-bearing drill hole sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |