CN101131069A - Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof - Google Patents
Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof Download PDFInfo
- Publication number
- CN101131069A CN101131069A CNA2006101118307A CN200610111830A CN101131069A CN 101131069 A CN101131069 A CN 101131069A CN A2006101118307 A CNA2006101118307 A CN A2006101118307A CN 200610111830 A CN200610111830 A CN 200610111830A CN 101131069 A CN101131069 A CN 101131069A
- Authority
- CN
- China
- Prior art keywords
- hole
- coal seam
- drilling
- drilling rod
- drilling tool
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The present invention is cooled drilling tool and drilling process for protuberant coal bed. The drilling tool includes one cooled drill stem with surface spiral conveying slot for penetrating the drilled hole and carrying out friction heat from the drill stem, and one antijamming drill bit assembly connected to the cooled drill stem and comprising one drill bit and one non-return valve member to prevent the drill stem hole from blocking with coal slag. The drilling process includes the following steps: providing the drill stem with high pressure air source and starting the drilling machine to drill, and lowering the rotation speed and stopping propelling while the drilling machine rotates after partial jamming of the drill stem to lower the temperature of the drill tool and penetrate the drilled hole. The present invention can improve the effect of drilling in protuberant coal bed.
Description
Technical field
The present invention relates to a kind of projecting coal bed method of taking off the hole temperature-reducing drilling tool and using this drilling tool to creep into of creeping in colliery that is used for.
Background technology
In the industrial circle of colliery, before projecting coal bed the exploitation, need to hole to projecting coal bed earlier, with the methane gas in the pump drainage coal seam.
At present, the tunnel hydraulic drill rig is generally adopted in the construction of domestic projecting coal bed extraction boring, and its drilling rod adopts smooth steel pipe to make, the drill bit place is not provided with individual event valve, adopt wind power slag-discharging when drilling, promptly high-pressure blast arrives drill bit through drill pipe bore, and high-pressure blast blows out boring to boring mud.But, adopt the above method phenomenons such as hole, coal big gun and boring obstruction that in projecting coal bed process of creeping into, often occur collapsing, these phenomenons cause the boring slagging channel to stop up, and then bit freezing appears, drilling rod is lost and phenomenons (the domestic boring pyrophoricity accident that repeatedly occurs) such as heat are excessively given birth in drilling rod friction, therefore, projecting coal bed deep well drilling is very difficult.
For solving the problem of projecting coal bed deep well drilling difficulty, the applicant described a kind of " the joint-cutting apparatus and method for is crept in projecting coal bed pressurize " in another part application number is 200510059889.1 patent application, but its construction technology complexity, the construction cost height.
In addition, also described a kind of " cherry coal floor height gas deep hole rig drilling rod " in No. 01267191.6 patent, still, this drilling rod is because the strength matching of drilling rod and connection screw thread is difficult to realization, and use is very limited; Similarly, a kind of " step tube drilling rod and rig " described in No. 02800916.9 patent application (patent No.), yet, because this equipment is huge, so use is subjected to the restriction in space, the recovery difficulty of Pipe Cutting shape drilling rod in the down-hole.
Therefore, be necessary to design a kind of new outburst coal seam hole temperature-reducing drilling tool and drilling method thereof in fact, to overcome above-mentioned defective.
Summary of the invention
Can avoid bit freezing occurring largely when the object of the present invention is to provide phenomenon such as a kind of simple in structure and the hole that in projecting coal bed process of creeping into, occurs collapsing, coal big gun and boring obstruction, drilling rod is lost and the drilling tool of the combustion phenomena of holing and the drilling method that uses this kind drilling tool.
To achieve these goals, outburst coal seam hole temperature-reducing drilling tool of the present invention and drilling method thereof adopt following design respectively:
A kind of outburst coal seam hole temperature-reducing drilling tool, it comprises takes off hole cooling drilling rod and is connected in the anti-blocking drill bit assembly that this takes off hole drill bar one end, the described hole cooling drilling rod of taking off is provided with the endoporus that is used for by high pressure draught, the described hole cooling drilling rod external surface of taking off is provided with spiral conveying groove, and described anti-blocking drill bit assembly comprises drill bit spare and one way valve members, and described one way valve members is installed in drill bit spare inside.
A kind of method of using above-mentioned drilling tool to creep in projecting coal bed comprises the steps:
At first, provide external high pressure draught source for described outburst coal seam hole temperature-reducing drilling tool;
Then, starting rig drives this outburst coal seam hole temperature-reducing drilling tool and realizes creeping into;
Subsequently, in drilling process,, the part coal seam fills in when stagnating around the drilling rod because of coming off, adjust the rig rotating speed, uprising rotating speed is slow-speed of revolution speed, and under the situation of rig rotation, stop the drilling rod propelling, and make outburst coal seam hole temperature-reducing drilling tool will under the state of low speed rotation, begin to take off the hole action, discharge to the boring outside by described spiral conveying groove until the coal body cinder that plug stagnates around drilling rod, open slagging channel, make and creep into till the recovery normally.
According to preferred implementation of the present invention, the hand of spiral of described spiral conveying groove direction of rotation of rig when normally creeping into is consistent, described drill bit spare passes through to connect spiral marking connection with the described hole cooling drilling rod of taking off, described one way valve members comprises the valve pocket that is fixed on described tube connector inside and is installed in the interior movable spool of described valve pocket, this activity spool one end is provided with calyptra, and this calyptra is held in described valve pocket outer end.
The outburst coal seam hole temperature-reducing drilling tool and the drilling method thereof of the application of the invention, can improve projecting coal bed effect of drilling, realize projecting coal bed deep well drilling, spiral conveying groove on the drilling rod makes boring mud in time take away the frictional heat of drilling rod simultaneously, make drilling rod be unlikely to excessive heating, this is significant to gas combustion in preventing to hole.
Description of drawings
Below, will be described in detail the specific embodiment of the present invention in conjunction with the accompanying drawings, wherein:
Fig. 1 is the side partial sectional view of outburst coal seam of the present invention hole temperature-reducing drilling tool;
Fig. 2 is the sectional view along the A-A line of Fig. 1.
The specific embodiment
See also Fig. 1, outburst coal seam of the present invention hole temperature-reducing drilling tool 1 comprises to be taken off hole cooling drilling rod 10 and is located at the anti-blocking drill bit assembly 12 of taking off hole cooling drilling rod 10 1 ends.
Please in conjunction with consulting Fig. 1 and Fig. 2, the described hole cooling drilling rod 10 of taking off has endoporus, and with by high pressure draught, and its external surface is provided with spiral conveying groove 100, to carry cinder to the outside.The forming method that described spiral revolves delivery chute 100 has two kinds: the one, go out spiral conveying groove 100 taking off hole drill bar 10 external cuttings; The 2nd, taking off hole drill bar 10 cylindricals welding helical steel band, form spiral conveying groove 100.This spiral conveying groove 100 of taking off on the hole cooling drilling rod 10 can be wall scroll or many, and parameters such as its number, width, the degree of depth and helical angle, can adjust according to factors such as coal seam conditions, drilling rod strength matching.In the present embodiment, spiral conveying groove 100 is a right-hand screw, with rig the dextrorotation direction corresponding, when boring is stopped up like this, the spiral conveying groove of taking off on the hole cooling drilling rod 10 100 will be taken off outside the hell direction the cinder that stops up in the section boring, reach the effect of opening slagging channel, and make the cinder that contacts with drilling rod be in flow regime in time to take away the heat that drilling rod friction is produced.This takes off hole cooling drilling rod 10 can be welding point, can be the spiral marking connection joint also, can realize many connections by screw thread between the drilling rod.
Described anti-blocking drill bit assembly 12 comprises drill bit 120 that is used to creep into and the one way valve members 122 of being located at these drill bit assembly 12 inside.
See also Fig. 1, described drill bit 120 inside are provided with the mesopore 120a that is communicated with the endoporus of taking off hole cooling drilling rod 10.In addition, this drill bit 120 preferably is connected with the described hole cooling drilling rod 10 of taking off by a tube connector 121, and guarantee that described mesopore 120a keeps being communicated with the inner chamber of taking off hole cooling drilling rod 10, described one way valve members 122 promptly is installed in the described tube connector 121, can only unidirectional conducting to guarantee described mesopore 120a and to take off between the hole cooling drilling rod 10, promptly only in direction conducting towards drill bit 120.
Described one way valve members 122 comprises the valve pocket 1220 that is set in described tube connector 121 inside and is installed in movable spool 1222 in the described valve pocket 1220, these activity spool 1,222 one ends are provided with calyptra 1222a, this calyptra 1222a is held in described valve pocket 1220 outer ends, enters the endoporus of taking off hole drill bar 10 to prevent cinder.Those skilled in the art will appreciate that except that adopting said structure one way valve members 122 can also adopt its affiliated field other structures commonly used.
Below, will specifically set forth outburst coal seam of the present invention hole temperature-reducing drilling tool 1 carries out deep well drilling in the projecting coal bed method of using:
At first, provide the external high pressure draught source that continues for described outburst coal seam hole temperature-reducing drilling tool 1;
Then, starting rig drives this outburst coal seam hole temperature-reducing drilling tool 1 and realizes creeping into;
Under the nonclogging situation of boring, outburst coal seam of the present invention hole temperature-reducing drilling tool 1 normally creeps into, the cinder that is fallen by drill bit 120 brills is outwards blown by the described high pressure draught of taking off the endoporus ejection of hole cooling drilling rod 10, discharges to the boring outside along described spiral conveying groove 100 under the turning effort of taking off hole cooling drilling rod then;
In the process that continues to creep into; boring takes place and stops up in regular meeting; before boring is stopped up; can send bigger sound (coal big gun) in the boring; then the part coal seam in the boring comes off and fills in and stagnates around drilling rod 10, and in addition, the effect of the high pressure gas of coal big gun can produce high pressure draught and carry the endoporus of cinder sinker bar 10; but, avoided the described endoporus of taking off hole cooling drilling rod 10 blocked by the backstop action of one way valve members 122.At this moment, adjust the rig rotating speed, uprising rotating speed is slow-speed of revolution speed, and under the situation of rig rotation, stop drilling rod 10 and advance, described outburst coal seam hole temperature-reducing drilling tool 1 will begin to take off the hole action under the state of low speed rotation, make that filling in the coal body that stagnates around drilling rod 10 passes through described spiral conveying groove 100 to the outside discharge of boring, simultaneously, continue as the described endoporus supply high pressure draught of taking off hole drill bar 10, to help to discharge cinder.
After treating that hell sees that deslagging is smooth and easy, can continue to creep into forward normally, and after creeping into certain depth, increase another root drilling rod 10; When running into again, can repeat to implement foregoing operating process because of coal big gun generation boring obstruction.
The outburst coal seam hole temperature-reducing drilling tool and the drilling method thereof of the application of the invention can improve projecting coal bed effect of drilling, and realize projecting coal bed deep well drilling.Simultaneously the spiral conveying groove on the drilling rod makes boring mud in time take away the frictional heat of drilling rod, makes drilling rod be unlikely to excessive heating, and this is significant to gas combustion in preventing to hole.
Claims (6)
1. outburst coal seam hole temperature-reducing drilling tool, it comprises takes off hole cooling drilling rod and is connected in the anti-blocking drill bit assembly that this takes off hole drill bar one end, the described hole cooling drilling rod of taking off is provided with the endoporus that is used for by high pressure draught, it is characterized in that, the described hole cooling drilling rod external surface of taking off is provided with spiral conveying groove, and described anti-blocking drill bit assembly comprises drill bit spare and one way valve members, and described one way valve members is installed in drill bit spare inside.
2. outburst coal seam according to claim 1 hole temperature-reducing drilling tool is characterized in that, the hand of spiral of described spiral conveying groove direction of rotation of rig when normally creeping into is consistent.
3. outburst coal seam according to claim 1 hole temperature-reducing drilling tool, it is characterized in that, described drill bit spare passes through the tube connector spiral marking connection with the described hole cooling drilling rod of taking off, described one way valve members comprises the valve pocket that is fixed on described tube connector inside and is installed in the interior movable spool of described valve pocket, this activity spool one end is provided with calyptra, and this calyptra is held in described valve pocket outer end.
4. drilling method that uses outburst coal seam according to claim 1 hole temperature-reducing drilling tool may further comprise the steps:
At first, provide external high pressure draught source for described outburst coal seam hole temperature-reducing drilling tool;
Then, starting rig drives this outburst coal seam hole temperature-reducing drilling tool and realizes creeping into;
Subsequently, in drilling process,, the part coal seam fills in when stagnating around the drilling rod because of coming off, adjust the rig rotating speed, uprising rotating speed is slow-speed of revolution speed, and under the situation of rig rotation, stop drilling rod and advance, make outburst coal seam hole temperature-reducing drilling tool will under the state of low speed rotation, begin to take off hole action, discharge to boring is outside by described spiral conveying groove until the coal body cinder that plug stagnates around drilling rod, open slagging channel make creep into recover normal till.
5. outburst coal seam according to claim 4 hole temperature-reducing drilling tool is characterized in that, the hand of spiral of described spiral conveying groove direction of rotation of rig when normally creeping into is consistent.
6. outburst coal seam according to claim 5 hole temperature-reducing drilling tool, it is characterized in that, described drill bit spare passes through the tube connector spiral marking connection with the described hole cooling drilling rod of taking off, described one way valve members comprises the valve pocket that is fixed on described tube connector inside and is installed in the interior movable spool of described valve pocket, this activity spool one end is provided with calyptra, and this calyptra is held in described valve pocket outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101118307A CN101131069B (en) | 2006-08-25 | 2006-08-25 | Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101118307A CN101131069B (en) | 2006-08-25 | 2006-08-25 | Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101131069A true CN101131069A (en) | 2008-02-27 |
| CN101131069B CN101131069B (en) | 2010-09-15 |
Family
ID=39128463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101118307A Expired - Fee Related CN101131069B (en) | 2006-08-25 | 2006-08-25 | Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101131069B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100591893C (en) * | 2008-05-27 | 2010-02-24 | 河南理工大学 | Projecting coal bed edge top drill construction method for eliminating pumping blind zone |
| CN102116168A (en) * | 2011-01-26 | 2011-07-06 | 河南理工大学 | Gas drainage system and method for hyposmosis soft coal seams |
| CN102199991A (en) * | 2011-05-05 | 2011-09-28 | 河南理工大学 | Drilling-fixing integrated device and method for yolk coal terrane |
| CN101280667B (en) * | 2008-06-05 | 2012-02-29 | 山西潞安矿业(集团)有限责任公司 | Low helical abrasion-proof drill rod for mash gas pumping drilling construction and machining process thereof |
| CN101566049B (en) * | 2009-05-21 | 2012-07-25 | 河南理工大学 | Irregularly shaped multi-land notch groove drill rod |
| CN103321670A (en) * | 2013-07-10 | 2013-09-25 | 四川大学 | Built-in drill stem temperature control automatic wind closing flame-retardant device |
| CN104405289A (en) * | 2014-11-19 | 2015-03-11 | 吉林大学 | Hot-melting drilling bit for drilling ice-snow layer |
| CN105464589A (en) * | 2016-01-11 | 2016-04-06 | 河南理工大学 | Bionic drilling method and drill rod for resistance reduction and heat dissipation of soft coal petrography |
| CN108119064A (en) * | 2017-12-15 | 2018-06-05 | 武汉科技大学 | A kind of fast cooling punch device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635725A (en) * | 1984-12-10 | 1987-01-13 | Burroughs Thomas C | Method and apparatus for gravel packing a well |
| CN85200953U (en) * | 1985-04-01 | 1986-01-15 | 天津市冶金实验厂 | Screwed hollow drill stem for coal-cutting |
| DE4138356A1 (en) * | 1991-11-21 | 1993-05-27 | Gu Tiefbau Ag | DRILLING DEVICE FOR DEEP CONSTRUCTION AND METHOD FOR MANUFACTURING STABILIZING SAEULES OR SIMILAR PICTURES IN EARTH |
| SE509633C2 (en) * | 1992-05-19 | 1999-02-15 | Atlas Copco Rock Drills Ab | Drill string component for use in drilling with a liquid-driven submersible drill |
| DE4232560C1 (en) * | 1992-09-29 | 1993-12-09 | Klemm Ingrid | Earth-drilling auger device - has screw shaft bore provided with check valve |
-
2006
- 2006-08-25 CN CN2006101118307A patent/CN101131069B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100591893C (en) * | 2008-05-27 | 2010-02-24 | 河南理工大学 | Projecting coal bed edge top drill construction method for eliminating pumping blind zone |
| CN101280667B (en) * | 2008-06-05 | 2012-02-29 | 山西潞安矿业(集团)有限责任公司 | Low helical abrasion-proof drill rod for mash gas pumping drilling construction and machining process thereof |
| CN101566049B (en) * | 2009-05-21 | 2012-07-25 | 河南理工大学 | Irregularly shaped multi-land notch groove drill rod |
| CN102116168B (en) * | 2011-01-26 | 2012-12-05 | 河南理工大学 | Gas drainage system and method for hyposmosis soft coal seams |
| CN102116168A (en) * | 2011-01-26 | 2011-07-06 | 河南理工大学 | Gas drainage system and method for hyposmosis soft coal seams |
| CN102199991B (en) * | 2011-05-05 | 2013-07-03 | 河南理工大学 | Drilling-fixing integrated device and method for yolk coal terrane |
| CN102199991A (en) * | 2011-05-05 | 2011-09-28 | 河南理工大学 | Drilling-fixing integrated device and method for yolk coal terrane |
| CN103321670A (en) * | 2013-07-10 | 2013-09-25 | 四川大学 | Built-in drill stem temperature control automatic wind closing flame-retardant device |
| CN103321670B (en) * | 2013-07-10 | 2015-03-18 | 四川大学 | Built-in drill stem temperature control automatic wind closing flame-retardant device |
| CN104405289A (en) * | 2014-11-19 | 2015-03-11 | 吉林大学 | Hot-melting drilling bit for drilling ice-snow layer |
| CN104405289B (en) * | 2014-11-19 | 2016-05-25 | 吉林大学 | The hot melting drill head creeping into for ice and snow layer |
| CN105464589A (en) * | 2016-01-11 | 2016-04-06 | 河南理工大学 | Bionic drilling method and drill rod for resistance reduction and heat dissipation of soft coal petrography |
| CN108119064A (en) * | 2017-12-15 | 2018-06-05 | 武汉科技大学 | A kind of fast cooling punch device |
| CN108119064B (en) * | 2017-12-15 | 2019-08-27 | 武汉科技大学 | A kind of fast cooling punch device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101131069B (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101131069B (en) | Hole-digging and temperature-reducing drilling tool for outburst coal seam and drilling method thereof | |
| CN104314482B (en) | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed | |
| CN104632073A (en) | Reverse circulation drilling method of hollow down-hole hammer | |
| CN104763368A (en) | Orifice seal device for large-diameter downhole hammer and reverse circulation construction technology for orifice seal device | |
| WO2019169734A1 (en) | Integrated apparatus and method for long-distance downhole drilling and fracturing | |
| EA019105B1 (en) | Percussion assisted rotary earth bit and method of operating the same | |
| CN110195580A (en) | A kind of gas-liquid two-phase synergy coal seam anti-reflection method | |
| CN102839927B (en) | High-pressure water seal dual-power auger stem | |
| CN108625363A (en) | Facilitate the squelch type of construction quickly stake device processed in a kind of municipal works | |
| CN108625859A (en) | A kind of freeze-wellboring carbon dioxide phase transformation fracturing auxiliary driving method and its device | |
| CN104632112A (en) | Through-type downhole hammer reverse circulation drilling structure | |
| NO330476B1 (en) | Liquid seal for water roof drill bit | |
| CN103321575A (en) | Coal seam top/bottom plate penetrating-hole short-radius deflecting rotary drilling process | |
| CN204266948U (en) | Closed spiral guard aperture drilling tool is crept into for weak seam | |
| CN104453710A (en) | Drilling equipment for coal seam large-diameter boring construction | |
| CN112554781B (en) | Dredging and re-pumping method for collapse of coal seam gas extraction drill hole | |
| CN106703728A (en) | Reciprocating rotating bidirectional replacement device | |
| CN102128047B (en) | Gas-slag separation and recovering system for drilling construction | |
| CN108119064B (en) | A kind of fast cooling punch device | |
| CN105927149B (en) | The coal bed drilling burrowing device and method of a kind of quick penetration gangue | |
| CN213330951U (en) | Water circulation internal slag discharging drill rod | |
| CN205823155U (en) | A kind of coal bed drilling burrowing device of quick penetration gangue | |
| CN108086912A (en) | A kind of self-propelled high pressure water jet drill bit | |
| CN107575164A (en) | A kind of high-pressure hydraulic with the conditions of brill radially creeps into guider and method | |
| CN204492646U (en) | Bore broken integrated sluicing internal discharging type tunnel drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100915 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |