CN110043220A - A kind of layer-through drilling hole sealing device and method for sealing - Google Patents

A kind of layer-through drilling hole sealing device and method for sealing Download PDF

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Publication number
CN110043220A
CN110043220A CN201910413143.8A CN201910413143A CN110043220A CN 110043220 A CN110043220 A CN 110043220A CN 201910413143 A CN201910413143 A CN 201910413143A CN 110043220 A CN110043220 A CN 110043220A
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CN
China
Prior art keywords
double
pipe
curtain
pouch
deck
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Pending
Application number
CN201910413143.8A
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Chinese (zh)
Inventor
孙玉宁
宋维宾
王志明
孙志东
程伟
任海慧
张飞
裴刚
杨栋
王楠
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Henan University of Technology
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Henan University of Technology
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Filing date
Publication date
Application filed by Henan University of Technology filed Critical Henan University of Technology
Priority to CN201910413143.8A priority Critical patent/CN110043220A/en
Publication of CN110043220A publication Critical patent/CN110043220A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Abstract

The present invention relates to a kind of layer-through drilling hole sealing devices, including the first double-deck pouch, the second double-deck pouch, Grouting Pipe, lead slurry pipe, the fixed cloth set of curtain pipe, curtain pipe, the fixed cloth set of curtain pipe end, jag, jag cloth set, orifice plug, check valve, explosion check valve and plug, wherein the first double-deck pouch, the second double-deck pouch are coated on outside hole sealing tube, curtain pipe end is located at outside the second double-deck pouch, and Grouting Pipe passes through outer surface of the fixed device respectively with the first double-deck pouch, the second double-deck pouch and is connected with each other;Its method for sealing includes: insertion hole sealing device, three steps such as hole-sealing grouting and curtain-grouting.The science and specific aim of layer-through drilling sealing of hole can be improved in the present invention, and continuous curtain structure can be formed in the country rock of tunnel and drill site, so as to improve the airtight quality of mash gas pumping drilling.

Description

A kind of layer-through drilling hole sealing device and method for sealing
Technical field
It is related to one of coal mine gas extraction field more particularly to this coal bed gas extraction layer-through drilling sealing of hole dress It sets and method for sealing.
Background technique
The high quality seal of coal bed drilling is the key technology of gas drainage, directly affects the dense of down-hole coal bed gas drainage Degree.It is only often that closure operation is carried out to Present Borehole using current traditional plugging equipment when carrying out borehole sealing operation, So as to cause blocking, operation coverage area is relatively small, therefore generally requires to open up when coal bed gas extraction operation largely to meet It drills and carries out closure operation, it is relatively high so as to cause construction cost, it blocks operation labor intensity and difficulty is also relatively large, But the quality for blocking operation is also relatively poor, has seriously affected working efficiency, quality and the cost of the resources extraction operation such as gas.
Therefore it is directed to this problem, there is an urgent need to develop a kind of completely new borehole sealing equipment and drilling and sealing operational method, To meet the needs of actual use.
Summary of the invention
In order to solve the deficiency in the prior art, the present invention provides a kind of layer-through drilling hole sealing device and method for sealing.
In order to realize effect above-mentioned, a kind of layer-through drilling hole sealing device and method for sealing, particular content are proposed It is as follows:
A kind of layer-through drilling hole sealing device, including the first double-deck pouch, the second double-deck pouch, Grouting Pipe, hole sealing tube, lead slurry pipe, The fixed cloth set of curtain pipe, curtain pipe, the fixed cloth set of curtain pipe end, jag, jag cloth set, orifice plug, check valve, explosion are unidirectional Valve, fixed device and plug, wherein the first double-deck pouch, the second double-deck pouch are coated on outside hole sealing tube, Grouting Pipe is successively led to Cross the first double-deck pouch, the second double-deck pouch, and by fixed device respectively with the first double-deck pouch, the second double-deck pouch it is outer Surface is connected with each other, one plug of end installation, one check valve of setting in the Grouting Pipe in the first double-deck pouch, and second pair Setting two is located at two check valves of jag two sides in Grouting Pipe in layer pouch, and it is double-deck that explosion check valve is located at first In Grouting Pipe between pouch, the second double-deck pouch;Jag at least one passes through jag cloth set and the second double-deck pouch outer surface It is connected with each other, and is looped around the second pouch outer surface, form the closed hoop structure being coaxially distributed with the second double-deck pouch, Jag cloth set at least one, sew in the middle part of the second double-deck pouch outer surface, axis is vertical with the second bilayer pouch axis, The axial length of jag cloth set is 3-6 centimetres, leads slurry pipe and is installed between the second double-deck pouch and hole sealing tube, and and hole sealing tube Parallelly distribute on, curtain pipe is set in the first double-deck pouch and the first double-deck pouch, and curtain pipe front end is located at the second bilayer vesicles The outer surface of bag is simultaneously connect with plug, and curtain pipe corresponding second double-deck pouch side surface sets a curtain pipe import and a curtain The outlet of curtain pipe, and connect by the import of curtain pipe and the outlet of curtain pipe with the second double-deck pouch side surface, curtain pipe passes through curtain The fixed cloth set of pipe is connect with the second double-deck pouch outer surface, and the fixed cloth set of curtain pipe is covered on outside the outlet of curtain pipe and reserves Free end, for the fixed cloth set sewing of curtain pipe end in the right side of jag cloth set, axis is parallel with the second double-deck pouch axis, and Curtain pipe sequentially passes through the fixed cloth set of curtain pipe and the fixed cloth set of curtain pipe end, curtain pipe fix cloth set with curtain pipe respectively Free end and the fixed cloth set of curtain pipe end are fixed by winding adhesive tape;Uniformly distributed several pulps on the corresponding curtain pipe of jag cloth set , at least one layer of adhesive tape is covered on pulp eye, orifice plug is located at the first double-deck pouch front, including at least one layer of cotton layer, and structure Grouting Pipe, curtain pipe, hole sealing tube are coated at the cotton layer of orifice plug.
Further, the described first double-deck pouch and the second double-deck pouch side wall are made of inner-layer cloth and outer cloth, and It is filter chamber between inner-layer cloth and outer cloth, the second bilayer vesicles bag length is greater than the first double-deck pouch.
Further, the inner-layer cloth and outer cloth are permeable impermeable slurry cloth.
A kind of method for sealing of layer-through drilling hole sealing device, includes the following steps:
S1 is inserted into hole sealing device, layer-through drilling hole sealing device is set on hole sealing tube, by two bilayer pouches of hole sealing device End is fixed with hole sealing tube respectively, bundlees jag, connects external Grouting Pipe and curtain pipe, the subsequent hole sealing tube of grafting, according to early period By certain depth in the hole sealing device connected insertion drilling, insertion depth is super for the tunnel of measurement and the relaxation zone range of drill site Cross relaxation zone range;Mounting hole plug, step include: that cotton layer is tightly wound around on hole sealing tube, Grouting Pipe and curtain pipe, so After fill at 0.5-2 meters of hell.
S2, hole-sealing grouting, inspection hole-sealing grouting pump configure and have stirred particulate slurry, Grouting Pipe is connect with grouting pump, Implement hole-sealing grouting, there is particulate slurry to be delivered in the double-deck pouch by check valve, and keep the double-deck pouch swollen under slurry pressure It is swollen, slot is formed by the constraint bilayer pouch outer surface of jag;Continue slip casting, when slurry pressure is greater than the setting pressure of explosion check valve After power, explosion check valve is opened, and starts to carry out slip casting to the interlude of two double-deck pouches;When slurries are full of interlude, slurry Liquid, which passes through, leads the top that slurry pipe enters the second double-deck pouch, and further filling drilling stops slip casting until there is particulate slurry to exhaust And grouting pump is cleaned in time.
S3, curtain-grouting carry out S3 step after the last one drilling is completed S2 at least 24 hours in same group of drilling, And at least shifting to an earlier date 2 hours closing drilling negative pressure guarantee to be zero negative pressure state in hole, this step requires to carry out curtain to one group of drilling Curtain slip casting, one group of drilling can be whole layer-through drillings in certain region in layer-through drillings whole in a drill site or tunnel;Inspection Grouting pump used in curtain-grouting is looked into, no particulate slurry is configured and stir, grouting pump is connect with curtain pipe, implements curtain note Slurry.The slip casting step of one borehole are as follows: into curtain pipe injection without particulate slurry, no particulate slurry enter drilling after immediately along The slot flowing that S2 step is formed simultaneously in the crack of injection hole country rock, forms the fracture filling body of one borehole, works as grouting pressure When reaching specified value, stop slip casting, pressure maintaining 5 ~ slip casting then is carried out to other drillings after ten minutes.For same group of all brills It for hole, closes on the slurries in borehole fissure and is interconnected under the effect of high grouting pressure, form one and loosened in tunnel-drill site Continuous curtain structure outside circle.After all drillings complete slip casting, grouting pump is cleaned in time.In drilling without particulate slurry After reaching setting time, drilling negative pressure is opened.
The more traditional injection hole sealing structure of one aspect of the present invention, effectively simplifies injection hole sealing device structure, is improving While slurry coagulation efficacy, separately effectively eliminates slurry and generation stomata in slurry block is caused to happen because of solidification shrinkage, To improve the stability and structural strength of structure after slip casting slurry solidifies, and eliminates gas leakage caused by stomata and happens, Also block work operations efficiency and while quality improving slip casting simultaneously, separately effectively reduce slip casting plugging operations difficulty and Cost, and secondary plugging operation can be carried out to drilling, to effectively improve borehole sealing according to the needs of hole pumping and mining operation Effect stability, and greatly extend boring service life, it on the other hand can be by slip casting operation, if passing through the synchronous envelope of pair dry hole It is stifled, continuous curtain structure can be constituted by slip casting closure in extraction work surface stratum and block work surface, to further increase Block the quality and efficiency of operation.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments;
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the second double-deck pouch structure partial enlarged drawing;
Fig. 3 is that the present invention completes sealing of hole slurries curtain structure schematic diagram after sealing of hole;
Fig. 4 is method for sealing flow chart of the present invention.
Specific embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to construct, below with reference to specific Embodiment, the present invention is further explained.
A kind of layer-through drilling hole sealing device as described in Fig. 1-3, including the first double-deck pouch 2 of the double-deck pouch 1, second, note Slurry pipe 3, hole sealing tube 5, lead slurry pipe 11, curtain pipe 4, the fixed cloth set 17 of curtain pipe, the fixed cloth set 13 of curtain pipe end, jag 16, Jag cloth set 9, orifice plug 10, check valve 6, explosion check valve 7, fixed device 12 and plug 8, wherein the first double-deck pouch 1, the The two double-deck pouches 2 are coated on outside hole sealing tube 5, and Grouting Pipe 3 passes sequentially through the first double-deck pouch 2 of the double-deck pouch 1, second, and leads to It crosses outer surface of the fixed device 12 respectively with the first double-deck pouch 2 of the double-deck pouch 1, second to be connected with each other, and its end installation one A plug 8, is arranged a check valve 6 in the Grouting Pipe 3 in the first double-deck pouch 1, in the Grouting Pipe 3 in the second double-deck pouch 2 Two two check valves 6 for being located at 16 two sides of jag are set, and it is double-deck that explosion check valve 7 is located at the first double-deck pouch 1, second In Grouting Pipe 3 between pouch 2;Jag 16 at least one is mutually interconnected by jag cloth set 9 and the second 2 outer surface of the double-deck pouch It connects, and is looped around 2 outer surface of the second pouch, form the closed hoop structure being coaxially distributed with the second double-deck pouch 2, jag Cloth set 9 at least one, sew in the middle part of second double-deck 2 outer surface of pouch, axis is vertical with the second bilayer 2 axis of pouch, The axial length of jag cloth set 9 is 3-6 centimetres.
In the present embodiment, the slurry pipe 11 of leading is installed between the second double-deck pouch 2 and hole sealing tube 5, and flat with hole sealing tube 5 Row distribution, curtain pipe 4 is set in the first double-deck pouch 1 and the first double-deck pouch 2, and 4 front end of curtain pipe is double-deck positioned at second The outer surface of pouch 2 is simultaneously connect with plug 8, and 2 side surface of the double-deck pouch of curtain pipe 4 corresponding second sets a curtain pipe import 201 and curtain pipe outlet 202, and pass through curtain pipe import 201 and curtain pipe outlet 202 and the second bilayer 2 side table of pouch Face connection, curtain pipe 4 is connect by the fixed cloth set 17 of curtain pipe with the second 2 outer surface of the double-deck pouch, and the fixed cloth set of curtain pipe 17 are covered on outside curtain pipe outlet 201 and reserve free end, and the fixed sewing of cloth set 13 of curtain pipe end is in the right side of jag cloth set 9 Side, axis is parallel with second double-deck 2 axis of pouch, and curtain pipe 4 sequentially passes through the fixed cloth set 17 of curtain pipe and curtain pipe end Fixed cloth set 13 is held, curtain pipe 4 passes through with the free end of the fixed cloth set 17 of curtain pipe and the fixed cloth set 13 of curtain pipe end respectively It is fixed to wind adhesive tape 15;It is evenly distributed with several pulp eyes 14 on the corresponding curtain pipe 4 of jag cloth set 9, covers at least one on pulp eye 14 Layer adhesive tape 15, orifice plug 10 is located at first double-deck 1 front of pouch, including at least one layer of cotton layer, and constitutes the cotton layer of orifice plug 10 It is coated on Grouting Pipe 3, curtain pipe 4, hole sealing tube 5.
Wherein, the described first double-deck pouch 1 and second double-deck 2 side wall of pouch are by 202 structure of inner-layer cloth 201 and outer cloth At, and be filter chamber 203 between inner-layer cloth 201 and outer cloth 202, described second double-deck 2 length of pouch is greater than the first double-deck pouch 1。
Meanwhile the inner-layer cloth 201 and outer cloth 202 is permeable impermeable slurry cloth.
In addition, the curtain pipe import 201 is located at 202 left side of curtain pipe outlet, curtain pipe import 201 and curtain pipe are exported 202 and keep 30-50 centimetres of distance.
As shown in figure 4, a kind of method for sealing of layer-through drilling hole sealing device, includes the following steps:
S1 is inserted into hole sealing device, layer-through drilling hole sealing device is set on hole sealing tube, by two bilayer pouches of hole sealing device End is fixed with hole sealing tube respectively, bundlees jag, connects external Grouting Pipe and curtain pipe, the subsequent hole sealing tube of grafting, according to early period By certain depth in the hole sealing device connected insertion drilling, insertion depth is super for the tunnel of measurement and the relaxation zone range of drill site Cross relaxation zone range;Mounting hole plug, step include: that cotton layer is tightly wound around on hole sealing tube, Grouting Pipe and curtain pipe, so After fill at 0.5-2 meters of hell.
S2, hole-sealing grouting, inspection hole-sealing grouting pump configure and have stirred particulate slurry, Grouting Pipe is connect with grouting pump, Implement hole-sealing grouting, there is particulate slurry to be delivered in the double-deck pouch by check valve, and keep the double-deck pouch swollen under slurry pressure It is swollen, slot is formed by the constraint bilayer pouch outer surface of jag;Continue slip casting, when slurry pressure is greater than the setting pressure of explosion check valve After power, explosion check valve is opened, and starts to carry out slip casting to the interlude of two double-deck pouches;When slurries are full of interlude, slurry Liquid, which passes through, leads the top that slurry pipe enters the second double-deck pouch, and further filling drilling stops slip casting until there is particulate slurry to exhaust And grouting pump is cleaned in time.
S3, curtain-grouting carry out S3 step after the last one drilling is completed S2 at least 24 hours in same group of drilling, And at least shifting to an earlier date 2 hours closing drilling negative pressure guarantee to be zero negative pressure state in hole, this step requires to carry out curtain to one group of drilling Curtain slip casting, one group of drilling can be whole layer-through drillings in certain region in layer-through drillings whole in a drill site or tunnel;Inspection Grouting pump used in curtain-grouting is looked into, no particulate slurry is configured and stir, grouting pump is connect with curtain pipe, implements curtain note Slurry.The slip casting step of one borehole are as follows: into curtain pipe injection without particulate slurry, no particulate slurry enter drilling after immediately along The slot flowing that S2 step is formed simultaneously in the crack of injection hole country rock, forms the fracture filling body of one borehole, works as grouting pressure When reaching specified value, stop slip casting, pressure maintaining 5 ~ slip casting then is carried out to other drillings after ten minutes.For same group of all brills It for hole, closes on the slurries in borehole fissure and is interconnected under the effect of high grouting pressure, form one and loosened in tunnel-drill site Continuous curtain structure outside circle.After all drillings complete slip casting, grouting pump is cleaned in time.In drilling without particulate slurry After reaching setting time, drilling negative pressure is opened.
The more traditional injection hole sealing structure of one aspect of the present invention, effectively simplifies injection hole sealing device structure, is improving While slurry coagulation efficacy, separately effectively eliminates slurry and generation stomata in slurry block is caused to happen because of solidification shrinkage, To improve the stability and structural strength of structure after slip casting slurry solidifies, and eliminates gas leakage caused by stomata and happens, Also block work operations efficiency and while quality improving slip casting simultaneously, separately effectively reduce slip casting plugging operations difficulty and Cost, and secondary plugging operation can be carried out to drilling, to effectively improve borehole sealing according to the needs of hole pumping and mining operation Effect stability, and greatly extend boring service life, it on the other hand can be by slip casting operation, if passing through the synchronous envelope of pair dry hole It is stifled, continuous curtain structure can be constituted by slip casting closure in extraction work surface stratum and block work surface, to further increase Block the quality and efficiency of operation.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (5)

1. a kind of layer-through drilling hole sealing device, it is characterised in that: the layer-through drilling hole sealing device include the first double-deck pouch, The second double-deck pouch, hole sealing tube, leads slurry pipe, the fixed cloth set of curtain pipe, curtain pipe, the fixed cloth set of curtain pipe end, pricks Grouting Pipe Rope, jag cloth set, orifice plug, check valve, explosion check valve, fixed device and plug, wherein the described first double-deck pouch, second The double-deck pouch is coated on outside hole sealing tube, and the Grouting Pipe passes sequentially through the first double-deck pouch, the second double-deck pouch, and by solid Determine outer surface of the device respectively with the first double-deck pouch, the second double-deck pouch to be connected with each other, a plug is installed in end, described One check valve is set in the Grouting Pipe in the first double-deck pouch, two difference positions are set in the Grouting Pipe in the second double-deck pouch Two check valves in jag two sides, the explosion check valve are located at the slip casting between the first double-deck pouch, the second double-deck pouch Guan Shang;The jag at least one is connected with each other by jag cloth set and the second double-deck pouch outer surface, and is looped around the second capsule Bag outer surface, forms the closed hoop structure being coaxially distributed with the second double-deck pouch, the jag cloth set at least one, stitch It is formed on the middle part of the second double-deck pouch outer surface, axis is vertical with the second double-deck pouch axis, the axial length of jag cloth set Be 3-6 centimetres, the slurry pipe of leading is installed between the second double-deck pouch and hole sealing tube, and with hole sealing tube parallelly distribute on, the curtain Curtain pipe is set in the first double-deck pouch and the first double-deck pouch, and curtain pipe front end is located at the outer surface of the second double-deck pouch simultaneously It is connect with plug, curtain pipe corresponding second double-deck pouch side surface sets a curtain pipe import and a curtain pipe goes out Mouthful, and connect by the import of curtain pipe and the outlet of curtain pipe with the second double-deck pouch side surface, the curtain pipe passes through curtain pipe Fixed cloth set is connect with the second double-deck pouch outer surface, and the fixed cloth set of the curtain pipe is covered on outside the outlet of curtain pipe and reserves Free end out, the fixed cloth set sewing of the curtain pipe end is in the right side of jag cloth set, axis and the second double-deck pouch axis In parallel, and curtain pipe sequentially passes through the fixed cloth set of curtain pipe and the fixed cloth set of curtain pipe end, the curtain pipe respectively with curtain The free end of the fixed cloth set of pipe and the fixed cloth set of curtain pipe end are fixed by winding adhesive tape;On the corresponding curtain pipe of jag cloth set Several pulp eyes are evenly distributed with, at least one layer of adhesive tape is covered on pulp eye, the orifice plug is located at the first double-deck pouch front, including extremely Few one layer of cotton layer, and the cotton layer for constituting orifice plug is coated on Grouting Pipe, curtain pipe, hole sealing tube.
2. a kind of layer-through drilling hole sealing device according to claim 1, it is characterised in that: the first double-deck pouch and the The two double-deck pouch side walls are made of inner-layer cloth and outer cloth, and are filter chamber between inner-layer cloth and outer cloth, and described second is double-deck Pouch length is greater than the first double-deck pouch.
3. a kind of layer-through drilling hole sealing device according to claim 2, it is characterised in that: the inner-layer cloth and outer cloth It is permeable impermeable slurry cloth.
4. a kind of layer-through drilling hole sealing device according to claim 1, it is characterised in that: the curtain pipe import is located at curtain Curtain pipe outlet left side, the import of curtain pipe are exported with curtain pipe and are kept at a distance from 30-50 centimetres.
5. a kind of method for sealing of layer-through drilling hole sealing device, which is characterized in that the sealing of hole side of the layer-through drilling hole sealing device Method includes the following steps:
S1 is inserted into hole sealing device, layer-through drilling hole sealing device is set on hole sealing tube, by two bilayer pouches of hole sealing device End is fixed with hole sealing tube respectively, bundlees jag, connects external Grouting Pipe and curtain pipe, the subsequent hole sealing tube of grafting, according to early period By certain depth in the hole sealing device connected insertion drilling, insertion depth is super for the tunnel of measurement and the relaxation zone range of drill site Cross relaxation zone range;Mounting hole plug, step include: that cotton layer is tightly wound around on hole sealing tube, Grouting Pipe and curtain pipe, so After fill at 0.5-2 meters of hell;
S2, hole-sealing grouting check hole-sealing grouting pump, configure and stirred particulate slurry, Grouting Pipe is connect with grouting pump, implement Hole-sealing grouting has particulate slurry to be delivered in the double-deck pouch by check valve, and expands the double-deck pouch under slurry pressure, by The constraint bilayer pouch outer surface of jag forms slot;Continue slip casting, after slurry pressure is greater than the setting pressure of explosion check valve, Explosion check valve is opened, and starts to carry out slip casting to the interlude of two double-deck pouches;When slurries are full of interlude, slurries pass through The top that slurry pipe enters the second bilayer pouch is led, further filling drilling, until there is particulate slurry to exhaust, stopping slip casting is simultaneously timely Clean grouting pump;
S3, curtain-grouting carry out S3 step, and extremely after the last one drilling is completed S2 at least 24 hours in same group of drilling Shift to an earlier date 2 hours closing drilling negative pressure guarantee to be zero negative pressure state in hole less, this step requires to carry out curtain note to one group of drilling Slurry, one group of drilling can be whole layer-through drillings in certain region in layer-through drillings whole in a drill site or tunnel;Check curtain Grouting pump used in curtain slip casting, configures and stirs no particulate slurry, grouting pump is connect with curtain pipe, implements curtain-grouting, single The slip casting step of a drilling are as follows: without particulate slurry, no particulate slurry is walked along S2 immediately after entering drilling for injection into curtain pipe Suddenly in the slot flowing formed and the crack of injection hole country rock, the fracture filling body of one borehole is formed, when grouting pressure reaches When specified value, stop slip casting, pressure maintaining 5 ~ slip casting then is carried out to other drillings after ten minutes, for same group of all drillings Speech closes on the slurries in borehole fissure and is interconnected under the effect of high grouting pressure, forms one outside tunnel-drill site relaxation zone The continuous curtain structure in portion cleans grouting pump, reaching in drilling without particulate slurry after all drillings complete slip casting in time After setting time, drilling negative pressure is opened.
CN201910413143.8A 2019-05-17 2019-05-17 A kind of layer-through drilling hole sealing device and method for sealing Pending CN110043220A (en)

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Application Number Priority Date Filing Date Title
CN201910413143.8A CN110043220A (en) 2019-05-17 2019-05-17 A kind of layer-through drilling hole sealing device and method for sealing

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Application Number Priority Date Filing Date Title
CN201910413143.8A CN110043220A (en) 2019-05-17 2019-05-17 A kind of layer-through drilling hole sealing device and method for sealing

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195388A (en) * 2013-03-28 2013-07-10 郑州煤炭工业(集团)有限责任公司 Two-plugging hole packer and plugging grouting method
CN103541663A (en) * 2013-09-23 2014-01-29 中国平煤神马能源化工集团有限责任公司天成实业分公司 Special three-hole tube for plugging device and use method thereof
CN203626720U (en) * 2013-12-03 2014-06-04 河南理工大学 Anti-spray orifice multi-section bag hole packer
US20140371114A1 (en) * 2010-06-11 2014-12-18 Halliburton Energy Services, Inc. Far field diversion technique for treating subterranean formation
CN107989571A (en) * 2017-12-08 2018-05-04 河南理工大学 One kind wears three pouch plugging device of formula and its application method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140371114A1 (en) * 2010-06-11 2014-12-18 Halliburton Energy Services, Inc. Far field diversion technique for treating subterranean formation
CN103195388A (en) * 2013-03-28 2013-07-10 郑州煤炭工业(集团)有限责任公司 Two-plugging hole packer and plugging grouting method
CN103541663A (en) * 2013-09-23 2014-01-29 中国平煤神马能源化工集团有限责任公司天成实业分公司 Special three-hole tube for plugging device and use method thereof
CN203626720U (en) * 2013-12-03 2014-06-04 河南理工大学 Anti-spray orifice multi-section bag hole packer
CN107989571A (en) * 2017-12-08 2018-05-04 河南理工大学 One kind wears three pouch plugging device of formula and its application method

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