CN102889068A - Hole sealing device and method - Google Patents
Hole sealing device and method Download PDFInfo
- Publication number
- CN102889068A CN102889068A CN2012104322113A CN201210432211A CN102889068A CN 102889068 A CN102889068 A CN 102889068A CN 2012104322113 A CN2012104322113 A CN 2012104322113A CN 201210432211 A CN201210432211 A CN 201210432211A CN 102889068 A CN102889068 A CN 102889068A
- Authority
- CN
- China
- Prior art keywords
- hole sealing
- grouting pipe
- tube
- baffle
- baffles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a hole sealing device and a hole sealing method. The hole sealing device comprises a hole sealing pipe; one end of the hole sealing pipe is connected with a floral pipe; two first baffles and two second baffles are respectively and fixedly sleeved on the hole sealing pipe; the hole sealing pipe is provided with a first slip casting pipe, a second slip casting pipe and a third slip casting pipe in a penetrating manner; the top ends of the first slip casting pipe, the second slip casting pipe and the third slip casting pipe are located outside the hole sealing pipe; the bottom end of the first slip casting pipe penetrates through one second baffle from the outside of the hole sealing pipe and stretches between the two second baffles; the bottom end of the second slip casting pipe penetrates through the two second baffles from the outside of the hole sealing pipe and stretches between the second baffle and the first baffle; and the bottom end of the third slip casting pipe penetrates through the two second baffles and one first baffle and stretches between the two first baffles. The hole sealing device and hole sealing method can realize the good sealing between the hole sealing pipe and a hole wall so as to achieve the aim of sealing the hole.
Description
Technical field
The present invention relates to a kind of hole sealing technology, relate in particular to a kind of hole sealing device and method.
Background technology
In the operation of coal mine gas pumping, in the time of guaranteeing extraction, gas does not leak, and needs drainage holes with the expandable substance sealing of hole that expands.Concrete grammar is: sea-tangle is wrapped on the hole sealing tube outer wall of real pipe and floral tube link position, will be with putting to the designation hole deep-seated under the hole sealing tube of sea-tangle, wait for sealing hole sealing tube space outerpace after the sea-tangle imbibition, injected water mud around hole sealing tube then reaches the purpose of sealing of hole.
But because the sea-tangle coefficient of expansion is less, even still have the slit so that fully expand between rear sea-tangle and the hole wall, thereby in the grouting methol process, cement paste oozes out sea-tangle, causes the sealing of hole failure.And sea-tangle imbibition speed is slow, sealing of hole length consuming time, the practitioner in work period (8 hours) be difficult to once finish, be unfavorable for field control and operation.
Summary of the invention
For the problems referred to above of prior art, the invention provides a kind of hole sealing device and method, realize the good shutoff between hole sealing tube and the hole wall, prevent liquid for plugging seepage in follow-up slip casting process and the sealing of hole failure that causes.
The invention provides a kind of hole sealing device, comprise: a hole sealing tube, one end of described hole sealing tube is connected be used to the floral tube that extend at the bottom of the drainage holes hole, on described hole sealing tube, and the close described floral tube outside respectively fixed cover is provided with two the first baffle plates, between two adjacent described the first baffle plates at a distance of the first distance, in the described hole sealing tube outside, and an end fixed cover that deviates from described floral tube at described hole sealing tube is provided with two second baffles, between two adjacent described second baffles at a distance of second distance, in described hole sealing tube, be equipped with the first Grouting Pipe, the second Grouting Pipe and the 3rd Grouting Pipe, described the first Grouting Pipe, the top of the second Grouting Pipe and the 3rd Grouting Pipe is positioned at outside the described hole sealing tube, the bottom of described the first Grouting Pipe is passed a described second baffle outward by described hole sealing tube, extend between two described second baffles, the bottom of described the second Grouting Pipe is passed two described second baffles outward by described hole sealing tube and is extend between described second baffle and the first baffle plate, and two described second baffles and described first baffle plate are passed in the bottom of described the 3rd Grouting Pipe, extend between two described the first baffle plates.
Aforesaid hole sealing device, preferably, also be equipped with slurry recovering tube in the described hole sealing tube, the top of described slurry recovering tube is positioned at outside the described hole sealing tube, and described slurry recovering tube bottom is passed respectively two described second baffles, extend between described second baffle and the first baffle plate.
Aforesaid hole sealing device, preferably, described the first Grouting Pipe and the 3rd Grouting Pipe are flexible pipe.
Aforesaid hole sealing device, preferably, described the second Grouting Pipe and slurry recovering tube are galvanized pipe.
The present invention also provides a kind of method of utilizing this hole sealing device to carry out sealing of hole, comprise: utilize the 3rd Grouting Pipe to pressure injection liquid for plugging between two the first baffle plates, behind the first Preset Time, stop pressure injection, utilize the first Grouting Pipe to pressure injection liquid for plugging between two second baffles, behind the second Preset Time, stop pressure injection, behind the 3rd Preset Time, utilize the second Grouting Pipe to grouting methol between described the first baffle plate and the second baffle, with the slit in the country rock around the abundant shutoff hole wall.
Hole sealing device provided by the invention and method, baffle plate and extraction hole wall that utilization is set on the hole sealing tube are adjacent to, the liquid for plugging that can expand inject respectively between two second baffles by the first Grouting Pipe and the 3rd Grouting Pipe and two the first baffle plates between cavity, gap after liquid for plugging fully expands between the abundant shutoff hole sealing tube of energy and the drainage holes hole wall, and then, follow-up second Grouting Pipe of passing through is to the process to injection liquid for plugging between the first baffle plate and the second baffle, can not cause the seepage of liquid for plugging, can be further the abundant slit in the country rock around the shutoff drainage holes, reach the purpose of effective sealing of hole.
Description of drawings
Fig. 1 is the structural representation of hole sealing device embodiment of the present invention;
Fig. 2 is the structural representation of the first baffle plate of close second baffle among Fig. 1;
Fig. 3 is the structural representation of another the first baffle plate among Fig. 1;
Fig. 4 is the structural representation of the second baffle on the top of close hole sealing tube among Fig. 1;
Fig. 5 is the structural representation of another second baffle among Fig. 1.
Description of reference numerals:
1: steam vent; 2: the first Grouting Pipe; 3: slurry recovering tube;
4: hole sealing tube; 5: drainage holes; 6: the three Grouting Pipe;
7: the second Grouting Pipe; 8: second baffle; 9: the first baffle plates;
10: floral tube; 11: orifice end.
The specific embodiment
Fig. 1 is the structural representation of hole sealing device embodiment of the present invention, and Fig. 2 is the structural representation of the first baffle plate of close second baffle among Fig. 1, and Fig. 4 is the structural representation of the second baffle on the top of close hole sealing tube 4 among Fig. 1.Such as Fig. 1, Fig. 2 and shown in Figure 4, this hole sealing device comprises a hole sealing tube 4, one end of this hole sealing tube 4 is connected be used to the floral tube 10 that extend at the bottom of drainage holes 5 holes, on hole sealing tube 4, and close floral tube 10 outsides respectively fixed cover are provided with two the first baffle plates 9, between two adjacent the first baffle plates 9 at a distance of the first distance, in hole sealing tube 4 outsides, and the one section fixed cover that deviates from floral tube 10 at hole sealing tube 4 is provided with two second baffles 8, between two adjacent second baffles 8 at a distance of second distance, in hole sealing tube 4, be equipped with the first Grouting Pipe 2, the second Grouting Pipe 7 and the 3rd Grouting Pipe 6, the first Grouting Pipe 2, the top of the second Grouting Pipe 7 and the 3rd Grouting Pipe 6 is positioned at outside the hole sealing tube 4, the bottom of the first Grouting Pipe 2 is by passing a second baffle 8 outside the hole sealing tube 4, extend between two second baffles 8, the bottom of the second Grouting Pipe 7 extend between second baffle 8 and the first baffle plate 9 by passing two second baffles 8 outside the hole sealing tube 4, and two second baffles 8 and first baffle plate 9 are passed in the bottom of the 3rd Grouting Pipe 6, extend between two the first baffle plates 9.
Particularly, the first baffle plate 9 and second baffle 8 sizes can with drainage holes 5 diameters to coupling, can select the materials such as rubber like, can be cirque structure (such as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5) hole sealing tube 4 sealings are surrounded and fitted tightly with drainage holes 5 hole walls, right the present invention is not limited to this.
Second distance between the first distance in the present embodiment between two the first baffle plates 9 and two second baffles 8 can preset according to the liquid for plugging rear space that expands.
In the present embodiment near being provided with a steam vent 1 on the second baffle 8 of extraction orifice end 11, deviate from floral tube 10 the first baffle plate 9 (on also can be provided with a steam vent 1.When liquid for plugging begins in the first baffle plate 9 and second baffle 8 expansion, increase along with expanding volume, steam vent 1 is discharged gas in the first baffle plate 9 and the second baffle 8 so that liquid for plugging can be between drainage holes 5 hole walls and above-mentioned two the first baffle plates 9 or drainage holes hole wall and two second baffles 8 between fully expansion in the cavity of formation.
In the above-described embodiments, also be equipped with slurry recovering tube 3 in the hole sealing tube 4, the top of slurry recovering tube 3 is positioned at outside the hole sealing tube 4, and slurry recovering tube 3 bottoms are passed respectively two second baffles 8, extend between second baffle 8 and the first baffle plate 9.When liquid for plugging was filled with the space of whole the first baffle plate 9 and second baffle 8, liquid for plugging can flow out by slurry recovering tube 3, and the alert liquid for plugging stops to inject liquid for plugging.
In the above-described embodiments, the first Grouting Pipe 2 and the 3rd Grouting Pipe 6 can be flexible pipe.This flexible pipe has certain stretching, bending and anti-extrusion performance with it, and preventing in the implementation process fracture or squeezing flat damage affects flow section.
The hole sealing device of present embodiment, baffle plate and extraction hole wall that utilization is set on the hole sealing tube are adjacent to, the liquid for plugging that can expand inject respectively between two second baffles by the first Grouting Pipe and the 3rd Grouting Pipe and two the first baffle plates between cavity, gap after liquid for plugging fully expands between the abundant shutoff hole sealing tube of energy and the drainage holes hole wall, and then, follow-up second Grouting Pipe of passing through is to the process of injecting liquid for plugging between the first baffle plate and the second baffle, can not cause liquid for plugging seepage, reach the purpose of sealing of hole.Solve in the prior art, expanding because of sea-tangle still exists the slit between rear and the hole wall, thereby in the grouting methol process, cement paste oozes out sea-tangle, causes the problem of sealing of hole failure.
As shown in Figure 1, another embodiment of the present invention provides a kind of hole sealing device that utilizes above-described embodiment to carry out the method for sealing of hole, comprise: utilize the 3rd Grouting Pipe 6 to pressure injection liquid for plugging between two the first baffle plates 9, behind the first Preset Time, stop pressure injection, utilize the first Grouting Pipe 2 to pressure injection liquid for plugging between two second baffles 8, behind the second Preset Time, stop pressure injection, behind the 3rd Preset Time, utilize the second Grouting Pipe 7 to grouting methol between the first baffle plate 9 and the second baffle 8, with the slit in the country rock around the abundant shutoff hole wall.
Particularly, in the operation of coal extraction gas, extraction machine (scheming not shown) can be tightly connected with the orifice end 11 of hole sealing tube 4, hole sealing tube 4 opposite sides connect to be used for being deep into the floral tube 10 at the bottom of drainage holes 5 holes, carry out first the sealing of hole operation when extraction operation begins, after sealing of hole finishes, start the extraction machine, begin to bleed, gas enters hole sealing tube 4 by drainage holes 5, is drawn out of by hole sealing tube 4 orifice end 11 at last.
Wherein, in the above-mentioned method for sealing between the first baffle plate 9 and the second baffle 8 pressure of pressure injection liquid for plugging can be 0.1～0.5MPa, can control the amount of injecting liquid for plugging by the value of controlling the first Preset Time, the second Preset Time, because flow one regularly just can be controlled what of liquid for plugging of injection by the control time, the very first time can equate with the second time simultaneously, but much implement under the operating mode, the length difference of two Grouting Pipe is a lot, so the value of the very first time and the second time is different.
The 3rd scheduled time can fully expand the needed time for liquid for plugging in the first baffle plate 9 and the second baffle 8 in above-described embodiment, for example use polyurethane A, B medicine (polyurethane full name polyurethane resin, A component product are called polyethers 202, B component product are called polyethers 303) carry out shutoff as liquid for plugging, its expansion time is 3～5min, so its 3rd scheduled time is 3～5min, this time can change according to injecting shutoff liquid difference.
Above-mentioned is among the embodiment, and after the 3rd scheduled time, utilizing the second Grouting Pipe 7 is the cement paste of 4～6MPa to injecting pressure between the first baffle plate 9 and the second baffle 8.
This hole sealing device that utilizes that present embodiment provides carries out the method for sealing of hole, utilize the 3rd Grouting Pipe to pressure injection liquid for plugging between two the first baffle plates, through the first Preset Time, stop pressure injection, utilize the first Grouting Pipe to pressure injection liquid for plugging between two second baffles, through the second Preset Time, stop pressure injection, behind the 3rd Preset Time, between two the first baffle plates and the liquid for plugging between two second baffles fully expanded in two the first baffle plates and two second baffles, with baffle plate and drainage holes sealing, utilize the second Grouting Pipe to grouting methol between the first baffle plate and the second baffle, with the slit in the country rock around the abundant shutoff hole wall, it is not tight to have solved the shutoff that the employing sea-tangle in existing causes as the block section, the problem that causes the seepage that occurs in the slip casting process, realize effective sealing of hole of drainage holes, guaranteed carrying out smoothly of follow-up extraction.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a hole sealing device is characterized in that, comprising: a hole sealing tube, an end of described hole sealing tube are connected be used to the floral tube that extend at the bottom of the drainage holes hole; On described hole sealing tube and near the described floral tube outside respectively fixed cover be provided with two the first baffle plates, between two adjacent described the first baffle plates at a distance of the first distance; Be provided with two second baffles in the described hole sealing tube outside and at the end fixed cover that described hole sealing tube deviates from described floral tube, between two adjacent described second baffles at a distance of second distance; In described hole sealing tube, be equipped with the first Grouting Pipe, the second Grouting Pipe and the 3rd Grouting Pipe; The top of described the first Grouting Pipe, the second Grouting Pipe and the 3rd Grouting Pipe is positioned at outside the described hole sealing tube, the bottom of described the first Grouting Pipe is passed a described second baffle outward, is extend between two described second baffles by described hole sealing tube, the bottom of described the second Grouting Pipe is passed two described second baffles outward by described hole sealing tube and is extend between described second baffle and the first baffle plate, and the bottom of described the 3rd Grouting Pipe is passed two described second baffles and described first baffle plate, extend between two described the first baffle plates.
2. hole sealing device according to claim 1, it is characterized in that, also be equipped with slurry recovering tube in the described hole sealing tube, the top of described slurry recovering tube is positioned at outside the described hole sealing tube, and described slurry recovering tube bottom is passed respectively two described second baffles, extend between described second baffle and the first baffle plate.
3. hole sealing device according to claim 1 and 2 is characterized in that, described the first Grouting Pipe and the 3rd Grouting Pipe are flexible pipe.
4. hole sealing device according to claim 2 is characterized in that, described the second Grouting Pipe and slurry recovering tube are galvanized pipe.
5. utilize the arbitrary described hole sealing device of claim 1 to 4 to carry out the method for sealing of hole, it is characterized in that, comprising:
Utilize the 3rd Grouting Pipe to pressure injection liquid for plugging between two the first baffle plates, behind the first Preset Time, stop pressure injection;
Utilize the first Grouting Pipe to pressure injection liquid for plugging between two second baffles, behind the second Preset Time, stop pressure injection;
Behind the 3rd Preset Time, utilize the second Grouting Pipe to grouting methol between described the first baffle plate and the second baffle, with the slit in the country rock around the abundant shutoff hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104322113A CN102889068A (en) | 2012-11-02 | 2012-11-02 | Hole sealing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104322113A CN102889068A (en) | 2012-11-02 | 2012-11-02 | Hole sealing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102889068A true CN102889068A (en) | 2013-01-23 |
Family
ID=47532732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104322113A Pending CN102889068A (en) | 2012-11-02 | 2012-11-02 | Hole sealing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889068A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265237A (en) * | 2014-09-03 | 2015-01-07 | 安徽理工大学 | Gas extraction hole sealing method |
| CN105114030A (en) * | 2015-08-20 | 2015-12-02 | 中国矿业大学 | Gas extraction drilling non-solidification constant-pressure slurry hole sealing method |
| CN108868822A (en) * | 2018-06-29 | 2018-11-23 | 平顶山平煤机煤矿机械装备有限公司 | The intelligent slip casting aperture apparatus of tunnel lining trolley |
| CN109915068A (en) * | 2019-03-12 | 2019-06-21 | 煤科集团沈阳研究院有限公司 | Flat seam mash gas pumping drilling automatic ink-suction blocks hole sealing device and method |
| CN111561291A (en) * | 2020-05-06 | 2020-08-21 | 太原理工大学 | Double-layer extrusion type hole sealing device and method for gas extraction drill hole |
| CN112267848A (en) * | 2020-10-23 | 2021-01-26 | 中国矿业大学 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
| CN113107419A (en) * | 2021-05-07 | 2021-07-13 | 永城煤电控股集团有限公司 | Coal mine drilling and hole sealing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508392A (en) * | 2002-12-16 | 2004-06-30 | 柳州欧维姆机械有限责任公司 | Vertical pipe vacuum pre pressing bidirectional slip casting method and sealed slip casting system thereof |
| CN201381872Y (en) * | 2009-03-13 | 2010-01-13 | 淮南矿业(集团)有限责任公司 | Hole-sealing pressure measuring device |
| CN102011606A (en) * | 2010-12-10 | 2011-04-13 | 煤炭科学研究总院重庆研究院 | Reaction type foam hole sealing multi-baffle sealing device |
| CN102071898A (en) * | 2010-12-10 | 2011-05-25 | 煤炭科学研究总院重庆研究院 | Self-formed baffle and reaction type foam hole sealing device thereof |
| CN102200002A (en) * | 2010-08-18 | 2011-09-28 | 王峰 | method and device for sealing upward hole at high pressure by sections |
| CN102268973A (en) * | 2010-06-04 | 2011-12-07 | 淮南矿业(集团)有限责任公司 | Hole sealing device |
| CN202250166U (en) * | 2011-10-08 | 2012-05-30 | 晋城凤凰实业有限责任公司 | Secondary high-pressure grouting hole packer |
| CN202882842U (en) * | 2012-11-02 | 2013-04-17 | 淮南矿业(集团)有限责任公司 | Hole sealing device |
-
2012
- 2012-11-02 CN CN2012104322113A patent/CN102889068A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508392A (en) * | 2002-12-16 | 2004-06-30 | 柳州欧维姆机械有限责任公司 | Vertical pipe vacuum pre pressing bidirectional slip casting method and sealed slip casting system thereof |
| CN201381872Y (en) * | 2009-03-13 | 2010-01-13 | 淮南矿业(集团)有限责任公司 | Hole-sealing pressure measuring device |
| CN102268973A (en) * | 2010-06-04 | 2011-12-07 | 淮南矿业(集团)有限责任公司 | Hole sealing device |
| CN102200002A (en) * | 2010-08-18 | 2011-09-28 | 王峰 | method and device for sealing upward hole at high pressure by sections |
| CN102011606A (en) * | 2010-12-10 | 2011-04-13 | 煤炭科学研究总院重庆研究院 | Reaction type foam hole sealing multi-baffle sealing device |
| CN102071898A (en) * | 2010-12-10 | 2011-05-25 | 煤炭科学研究总院重庆研究院 | Self-formed baffle and reaction type foam hole sealing device thereof |
| CN202250166U (en) * | 2011-10-08 | 2012-05-30 | 晋城凤凰实业有限责任公司 | Secondary high-pressure grouting hole packer |
| CN202882842U (en) * | 2012-11-02 | 2013-04-17 | 淮南矿业(集团)有限责任公司 | Hole sealing device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265237A (en) * | 2014-09-03 | 2015-01-07 | 安徽理工大学 | Gas extraction hole sealing method |
| CN105114030A (en) * | 2015-08-20 | 2015-12-02 | 中国矿业大学 | Gas extraction drilling non-solidification constant-pressure slurry hole sealing method |
| CN105114030B (en) * | 2015-08-20 | 2018-05-08 | 中国矿业大学 | A kind of non-condensable constant pressure slurries method for sealing of mash gas pumping drilling |
| CN108868822A (en) * | 2018-06-29 | 2018-11-23 | 平顶山平煤机煤矿机械装备有限公司 | The intelligent slip casting aperture apparatus of tunnel lining trolley |
| CN108868822B (en) * | 2018-06-29 | 2024-03-29 | 平顶山平煤机煤矿机械装备有限公司 | Intelligent grouting hole device for tunnel lining trolley |
| CN109915068A (en) * | 2019-03-12 | 2019-06-21 | 煤科集团沈阳研究院有限公司 | Flat seam mash gas pumping drilling automatic ink-suction blocks hole sealing device and method |
| CN109915068B (en) * | 2019-03-12 | 2020-07-07 | 煤科集团沈阳研究院有限公司 | Automatic water-absorbing plugging and hole-sealing device and method for near-horizontal coal seam gas extraction drill hole |
| CN111561291A (en) * | 2020-05-06 | 2020-08-21 | 太原理工大学 | Double-layer extrusion type hole sealing device and method for gas extraction drill hole |
| CN112267848A (en) * | 2020-10-23 | 2021-01-26 | 中国矿业大学 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
| CN112267848B (en) * | 2020-10-23 | 2021-11-09 | 中国矿业大学 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
| CN113107419A (en) * | 2021-05-07 | 2021-07-13 | 永城煤电控股集团有限公司 | Coal mine drilling and hole sealing device |
| CN113107419B (en) * | 2021-05-07 | 2022-12-13 | 永城煤电控股集团有限公司 | Colliery drilling hole sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102889068A (en) | Hole sealing device and method | |
| CN103075128B (en) | A kind of method for sealing of mash gas pumping drilling | |
| CN202560157U (en) | Grouting device | |
| CN102678083B (en) | Grouting method and grouting device | |
| CN204252941U (en) | Mining hole-sealing gas hole packer with pressure | |
| CN202882842U (en) | Hole sealing device | |
| CN111535296B (en) | Layered grouting freezing device and layered grouting freezing method | |
| CN108678721A (en) | Packaged type hydraulic fracturing and injection hole sealing integrated apparatus and its construction method | |
| CN103470212B (en) | Active drilling and hole sealing device and method | |
| CN102383826A (en) | Hole sealer and hole sealing process realized by using same | |
| CN104005406A (en) | Tubular pile construction method and pile tube structure of tubular pile | |
| CN208456572U (en) | Packaged type hydraulic fracturing and injection hole sealing integrated apparatus | |
| CN204476353U (en) | A kind of mash gas pumping drilling plugging device | |
| CN104567567A (en) | Uncoupled loaded blast hole water injecting method utilized during tunnel blasting construction | |
| CN105317397A (en) | Double cloth bags type grouting sealing set and method | |
| CN102966329A (en) | Drainage borehole plugging device and method | |
| CN202220617U (en) | Drilling extraction hole plugging device | |
| CN105089548A (en) | Nearly horizontal high pressure-bearing drilling sealing method and sealing structure | |
| CN204783060U (en) | Shield constructs hole circle stagnant water system in machine stage of starting | |
| CN202866732U (en) | Hole opening plugging device and gas extraction system | |
| CN204152475U (en) | Layer-through drilling list pouch hole sealing device | |
| CN109209315B (en) | Device and method for improving thin-layer heavy oil reservoir recovery ratio based on foam flooding | |
| CN202250167U (en) | Self-expansion type gas hole packer | |
| CN203856441U (en) | Under-pressure leakage blocking device applicable to petroleum and natural gas wellhead and conveying pipeline | |
| CN102322288A (en) | Self-expanding gas hole sealer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130123 |