CN104863542B - A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch - Google Patents
A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch Download PDFInfo
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- CN104863542B CN104863542B CN201510299732.XA CN201510299732A CN104863542B CN 104863542 B CN104863542 B CN 104863542B CN 201510299732 A CN201510299732 A CN 201510299732A CN 104863542 B CN104863542 B CN 104863542B
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- Prior art keywords
- drilling
- pouch
- hole
- sleeve pipes
- pvc sleeve
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- 238000005553 drilling Methods 0.000 title claims abstract description 81
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005520 cutting process Methods 0.000 title claims abstract description 22
- 238000007599 discharging Methods 0.000 title claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003245 coal Substances 0.000 claims abstract description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 4
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 238000007569 slipcasting Methods 0.000 claims description 10
- 239000002360 explosive Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 4
- 230000009172 bursting Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch, it is adaptable to nearly horizontal drilling.Constructed on coal body one big drilling, insertion front end there are the PVC sleeve pipes of floral tube, move back after brill and the PVC sleeve pipes for being fixed with pouch are inserted into big drilling.By injecting high-water material into pouch with the Grouting Pipe that pouch is bound, the inner end of Grouting Pipe is bound together with iron wire with PVC sleeve pipes.Continue a segment distance of constructing inwards along big drilling with small drill bit after high-water material solidification, the drilling cuttings that air drill is discharged in drilling process in the presence of wind-force due to dropping down onto in the space between PVC sleeve pipes and wammel wall surface of the hole, space between self-packing PVC sleeve pipes and big drilling, realizes sealing of hole integration of drilling.The effect of hole packer is served by pouch and can be good at preventing oozing out for high-water material, the drilling cuttings discharged using pouch and drilling process can complete sealing of hole, reduce sealing of hole cost, improve sealing of hole efficiency.Its is simple to operate, and sealing of hole works well.
Description
Technical field
The present invention relates to a kind of method for sealing, especially a kind of nearly horizontal firedamp taking-out discharging drilling suitable for underground coal mine is bored
Bits combine method for sealing with pouch.
Background technology
It is the key of gas drainage under suction using suitable hole-sealing technology and sealing material, the quality of sealing quality is directly affected
The efficiency of gas drainage under suction.The current hole sealing technology used both at home and abroad mainly has mechanical cementing mortar sealing of hole, dual-stage slip casting envelope
Hole, foaming polymeric materials sealing of hole, hole packer sealing of hole etc..Wherein mechanic water injection cement mortar sealing of hole is applied to inclined drill；Dual-stage
Injection hole sealing is applied to nearly level or gently inclined seam, but operates extremely complex；Foaming polymeric materials sealing of hole has foaming times
Number height, light weight, the rapid advantage of sealing of hole, but its cost is higher, the intensity after shaping is relatively low, easily catches fire, meet shipwreck to send out
The shortcomings of bubble, operation require higher.Hole packer sealing of hole speed is reused soon can reduce cost, but effect is poor, is only applicable to
Interim extraction sealing of hole.
The content of the invention
Technical problem：The purpose of the present invention be directed to prior art in exist problem there is provided one kind it is simple to operate, low into
Originally, the good nearly horizontal firedamp taking-out discharging drilling drilling cuttings of effect combines method for sealing with pouch.
Technical scheme：The nearly horizontal firedamp taking-out discharging drilling drilling cuttings of the present invention combines method for sealing, including following step with pouch
Suddenly：
A. the one big drilling of construction into nearly horizontal coal body with big drill bit；
B. move back after brill, the PVC sleeve pipes that front end carries floral tube are loaded into big drilling, are fixed on while loading under PVC sleeve pipes
The Grouting Pipe in portion, and an explosive valve is set in the anterior of Grouting Pipe, wind envelope on the PVC sleeve pipes and Grouting Pipe positioned at aperture section
The pouch in hole, and a check valve is set in pouch at Grouting Pipe rear portion；
C. high-water material is injected by Grouting Pipe, realizes the closure in space between PVC sleeve pipes outer end portion and big drilling, together
When check valve automatically opened up in the presence of grouting pressure, the slip casting into pouch, when pressure gauge registration reaches 2MP before Grouting Pipe
The explosive valve explosion at end, prevents pouch to be bursting at the collision because pressure is excessive, now completes slip casting；
D. after high-water material solidification after, with small drill bit along the bottom hole drilled greatly inwardly construction one small bore, it is ensured that it is small
Drilling and big drilling are concentric, and the drilling cuttings discharged in drilling process is dropped down onto in the space between PVC sleeve pipes and wammel wall surface of the hole, automatically
The space for filling and being compacted PVC sleeve pipes between big drilling；
E. small drill bit is crept into after precalculated position, drill bit and drilling rod is exited, by the PVC sleeve pipes mouth of pipe and gas drainage under suction pipe network
Connection, completes whole sealing of hole process.
Pressure gauge of the described Grouting Pipe outermost end provided with monitoring slip casting overpressure in real time.
Described PVC sleeve pipes total length is 12m.
The length of described pouch is 0.8m, and the position of pouch is adjusted according to actual conditions.
Described pouch is made of the impervious waterproof of high-water material slurries, fire-retardant, antistatic three proofings cloth material.
A diameter of 113mm of described big drilling, hole depth is 13m.
The a diameter of 75mm of described small bore.
Described floral tube the inner is apart from bottom hole 0.5m, and PVC sleeve pipes outer end is apart from aperture 0.5m.
Beneficial effect：Due to using above-mentioned technical proposal, compared with prior art, the present invention uses pouch and drilling process
The drilling cuttings of middle discharge is automatically performed sealing of hole process, space of the drilling cuttings padding and compacting between PVC sleeve pipes and wammel wall surface of the hole, realizes
The integration of drilling sealing of hole.Special pouch is used in combination with PVC sleeve pipes and simplifies slip casting process, reduces the use of high-water material
Amount.Pouch serves the effect of hole packer and can be good at preventing oozing out for high-water material.The present invention is simple to operate, sealing of hole effect
Fruit is good, suitable for nearly horizontal drilling.The drilling cuttings discharged using pouch and drilling process can complete sealing of hole, reduce sealing of hole into
This, improves sealing of hole efficiency.Its is simple to operate, and sealing of hole works well, with wide applicability.
Brief description of the drawings
Fig. 1 is that the nearly horizontal firedamp taking-out discharging drilling drilling cuttings of the present invention combines the method schematic diagram of sealing of hole with pouch；
Fig. 2 is the A-A structural representations in Fig. 1.
In figure：1-PVC sleeve pipes, 2- Grouting Pipes, 3- pressure gauges, 4- pouches, the big drillings of 5-, 6- small bores, 7- is mono-
To valve, 8- explosive valves, 9- drilling cuttings, 10- floral tubes.
Embodiment
One embodiment of the present of invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, the method that the nearly horizontal firedamp taking-out discharging drilling drilling cuttings of the present invention combines sealing of hole with pouch, including use
Φ 113mm big drill bit, Φ 75mm small drill bit, Φ 42mm drilling rods, PVC sleeve pipes, floral tube, pouch, Grouting Pipe, pressure gauge, make
Plugging material is high-water material and drilling cuttings.Can be accurate with drilling cuttings in order to ensure that nearly horizontal firedamp taking-out discharging drilling is smoothly constructed
Predetermined position is really fallen into, early-stage preparations are carried out：
(1) orientation and inclination angle of rig drilling are determined using geologic compass；
(2) powder is directly arranged using underground airduct air feed；
(3) drilling rod and drill bit in connection, start rig and carry out bore operation.
Comprise the following steps that：
A. with Φ 113mm big drill bit into nearly horizontal coal body at the one big drilling 5 of construction, perforate depth to 13m when,
Exit drilling rod and big drill bit；
B. move back after brill, the PVC sleeve pipes 1 that front end carries floral tube 10 are loaded into big drilling 5, PVC sets are fixed on while loading
The Grouting Pipe 2 of the bottom of pipe 1, and an explosive valve 8 is set in the anterior of Grouting Pipe 2, in the PVC sleeve pipes 1 positioned at aperture section and slip casting
The pouch 4 of sealing of hole is wound on pipe 2, and a check valve 7 is set in pouch 4 at the rear portion of Grouting Pipe 2；The flower of the front end of PVC sleeve pipes 1
The length of pipe 10 is 1m, and the total length of PVC sleeve pipes 1 is 12m, is fixed with the PVC sleeve pipes 1 of pouch 4 and is inserted into big drilling 5, capsule
The length of bag 4 is 0.8m, and the position of pouch 4 adjusted according to actual conditions so that the inner end of floral tube 10 apart from bottom hole 0.5m,
The outer end of PVC sleeve pipes 1 is apart from aperture 0.5m.
C. high-water material is injected into pouch 4 by the Grouting Pipe 2 bound with pouch 4, realizes the outer end portion of PVC sleeve pipes 1
The closure in space between big drilling 5, while check valve 7 is automatically opened up in the presence of grouting pressure, the slip casting into pouch 4,
With the injection of high-water material, the registration of pressure gauge 3 is gradually increased by 0, when the registration of pressure gauge 3 reaches 2MP, before Grouting Pipe 2
The explosion of explosive valve 8 at end, prevents pouch 4 to be bursting at the collision because pressure is excessive, and the registration of pressure gauge 3 is rapidly decreased to for 0, now complete note
Slurry；
D. after after high-water material solidification, the bottom hole with Φ 75mm small drill bit along big drilling 5 continues to construct one inwards
Small bore 6, it is ensured that small bore 6 and big drilling 5 are concentric, and the drilling cuttings 9 discharged in drilling process drops down onto PVC sleeve pipes 1 and big the wall of a borehole
In space between face, automatic filling and the space being compacted between PVC sleeve pipes 1 and big drilling 5
E. small drill bit is drilled into behind precalculated position, and drill bit and drilling rod are exited, and PVC sleeve pipes 1 are connected with gas drainage under suction pipe network,
Complete whole sealing of hole process.
Above-described embodiment only expresses one embodiment of the present invention, but therefore can not be interpreted as to model of the present invention
The limitation enclosed.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, also
Several modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (4)
1. a kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch, it is characterised in that comprise the following steps：
A. the one big drilling of construction into nearly horizontal coal body with big drill bit（5）, described big drilling（5）A diameter of 113mm,
Hole depth is 13m；
B. when perforate depth is at 13m, drilling rod and big drill bit is exited, is moved back after brill, to big drilling（5）Interior loading front end carries floral tube
（10）PVC sleeve pipes（1）, PVC sleeve pipes are fixed on while loading（1）The Grouting Pipe of bottom（2）, and in Grouting Pipe（2）Front portion
One explosive valve (8) is set, in the PVC sleeve pipes positioned at aperture section（1）And Grouting Pipe（2）The pouch of upper winding sealing of hole（4）, and in note
Slurry pipe（2）Rear portion is located at pouch（4）One check valve of middle setting (7)；The PVC sleeve pipes（1）The floral tube of front end（10）Length be
1m, PVC sleeve pipe（1）Total length be 12m, be fixed with pouch（4）PVC sleeve pipes（1）It is inserted into big drilling（5）In, pouch（4）
Length be 0.8m, pouch（4）Position adjusted according to actual conditions；Described Grouting Pipe（2）Exposed junction is provided with real-time
Monitor the pressure gauge of slip casting overpressure（3）；
C. by with pouch（4）Grouting Pipe (2) the injection high-water material of binding, realizes PVC sleeve pipes（1）Outer end portion and big drilling
（5）Between space closure, while check valve (7) is automatically opened up in the presence of grouting pressure, to pouch (4) interior slip casting, with
The injection of high-water material, pressure gauge（3）Registration gradually increased by 0, work as pressure gauge（3）When registration reaches 2MP, Grouting Pipe
(2) explosive valve (8) explosion of front end, prevents pouch (4) to be bursting at the collision because pressure is excessive, pressure gauge（3）Registration be rapidly decreased to for
0, now complete slip casting；
D. after after high-water material solidification, drilled with small drill bit along big（5）Bottom hole inwardly construction one small bore（6）, it is ensured that
Small bore（6）With big drilling（5）With one heart, the drilling cuttings (9) discharged in drilling process drops down onto PVC sleeve pipes（1）With big drilling（5）Wall
Between space in, automatic filling is simultaneously compacted PVC sleeve pipes（1）With big drilling（5）Between space；
E. small drill bit is crept into after precalculated position, drill bit and drilling rod is exited, by PVC sleeve pipes（1）The mouth of pipe and gas drainage under suction pipe network
Connection, completes whole sealing of hole process.
2. the method that a kind of nearly horizontal firedamp taking-out discharging drilling drilling cuttings according to claim 1 combines sealing of hole with pouch, it is special
Levy and be：Described pouch（4）It is made of the impervious waterproof of high-water material slurries, fire-retardant, antistatic three proofings cloth material.
3. the method that a kind of nearly horizontal firedamp taking-out discharging drilling drilling cuttings according to claim 1 combines sealing of hole with pouch, it is special
Levy and be：Described small bore（6）A diameter of 75mm.
4. the method that a kind of nearly horizontal firedamp taking-out discharging drilling drilling cuttings according to claim 1 combines sealing of hole with pouch, it is special
Levy and be：Described floral tube (10) the inner is apart from bottom hole 0.5m, and PVC sleeve pipes (1) outer end is apart from aperture 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510299732.XA CN104863542B (en) | 2015-06-03 | 2015-06-03 | A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510299732.XA CN104863542B (en) | 2015-06-03 | 2015-06-03 | A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104863542A CN104863542A (en) | 2015-08-26 |
| CN104863542B true CN104863542B (en) | 2017-09-29 |
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|---|---|---|---|
| CN201510299732.XA Expired - Fee Related CN104863542B (en) | 2015-06-03 | 2015-06-03 | A kind of method that nearly horizontal firedamp taking-out discharging drilling drilling cuttings combines sealing of hole with pouch |
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Families Citing this family (7)
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| CN105386754B (en) * | 2015-11-16 | 2019-02-12 | 山东科技大学 | Observation system for the soft coal petrography uplink drilling gas pressure in mine |
| CN106285555B (en) * | 2016-09-07 | 2019-01-01 | 淮南矿业(集团)有限责任公司 | The strong coal powder injection layer extraction borehole blowout prevention hole sealing device of high methane and its method for sealing |
| CN106814002B (en) * | 2017-01-25 | 2019-07-16 | 中国地质大学（北京） | It is a kind of to simulate the apparatus and method that tolerance is lost in low coal rank coal sample location of the coring procedure |
| CN109488370B (en) * | 2018-11-26 | 2020-11-10 | 淮南矿业(集团)有限责任公司 | Underground limestone water exploration and drainage drilling construction method |
| CN110159226A (en) * | 2019-06-19 | 2019-08-23 | 贵州盘江精煤股份有限公司 | A kind of gas control provided pipe fast plugging device |
| CN110761734B (en) * | 2019-12-06 | 2021-11-09 | 山西潞安矿业(集团)有限责任公司 | Sealing method of sealing device for drilling high-gas soft coal seam |
| CN114233202B (en) * | 2021-11-22 | 2023-09-26 | 煤炭科学技术研究院有限公司 | Drill rod with cabin capable of automatically adjusting opening and closing states along with wind pressure |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU941628A1 (en) * | 1980-04-02 | 1982-07-07 | Государственный Макеевский Ордена Октябрьской Революции Научно-Исследовательский Институт По Безопасности Работ В Горной Промышленности | Apparatus for measuring gas content of coal bed in mine |
| CN102747980A (en) * | 2012-07-18 | 2012-10-24 | 中国矿业大学 | Expansion type multi-grade pressurized rapid hole sealing technology |
| CN102926700B (en) * | 2012-11-23 | 2014-04-02 | 平顶山市安泰华矿用安全设备制造有限公司 | Grouting bag type hole packer with multi-section seal |
| CN103015986B (en) * | 2013-01-16 | 2015-09-16 | 河南理工大学 | The method of the coal mine underground coal bed gas pressure of a kind of direct mensuration |
| CN203081397U (en) * | 2013-05-14 | 2013-07-24 | 平顶山市安泰华矿用安全设备制造有限公司 | Grouting bag type hole packer |
| CN203626720U (en) * | 2013-12-03 | 2014-06-04 | 河南理工大学 | Anti-spray orifice multi-section bag hole packer |
| CN103775120B (en) * | 2014-01-20 | 2016-01-20 | 中国矿业大学 | A kind of up mash gas pumping drilling drilling cuttings method for sealing |
| CN103775024B (en) * | 2014-02-14 | 2017-01-04 | 河南理工大学 | Duff slurry method for sealing |
| CN203756114U (en) * | 2014-03-28 | 2014-08-06 | 淮南矿业(集团)有限责任公司 | Grouting hole packer with capsular bag |
| CN104343415A (en) * | 2014-10-20 | 2015-02-11 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilling and expanding type bag hole packer |
| CN104479650B (en) * | 2014-11-17 | 2018-01-05 | 宿州市金鼎安全技术股份有限公司 | A kind of mining hole packer sealing material |
| CN204344065U (en) * | 2014-12-23 | 2015-05-20 | 山西潞安环保能源开发股份有限公司 | The outer fluid filling hole sealing device of a kind of pipe |
| CN104563958B (en) * | 2015-01-09 | 2017-08-01 | 代广渊 | A kind of hole sealing device |
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2015
- 2015-06-03 CN CN201510299732.XA patent/CN104863542B/en not_active Expired - Fee Related
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| CN104863542A (en) | 2015-08-26 |
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Granted publication date: 20170929 Termination date: 20180603 |