CN103628824A - Drilling and cutting integrated drill pipe - Google Patents
Drilling and cutting integrated drill pipe Download PDFInfo
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- CN103628824A CN103628824A CN201310543230.8A CN201310543230A CN103628824A CN 103628824 A CN103628824 A CN 103628824A CN 201310543230 A CN201310543230 A CN 201310543230A CN 103628824 A CN103628824 A CN 103628824A
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Abstract
The invention discloses a drilling and cutting integrated drill pipe. A drill pipe body comprises a through hole, a male connector and a female connector, wherein the through hole penetrates in the axial direction, and the male connector and the female connector are matched and arranged at the two ends of the drill pipe body respectively; the position, located at one end of the drill pipe body, of the through hole is of a conical structure; a hole sealing assembly is placed in the through hole and comprises a conical hole sealing plug and a pressure adjusting spring; the larger end face of the conical hole sealing plug is connected with one end face of the pressure adjusting spring; the hole sealing plug is matched with the conical structure of the through hole and used for sealing the through hole; a jet hole assembly is arranged in the drill pipe body and comprises a jet through hole, and the jet through hole is perpendicular to the through hole in the drill pipe body and located behind the hole sealing plug.
Description
Technical field
The invention belongs to technology field, relate to the equipment in the front pre-mash gas extraction passage construction process of the formal exploitation of coal, the brill that is particularly related to a kind of pre-mash gas extraction passage cuts boring rod set, for solving existing drilling rod work progress, frequently causes up and down the problem of inefficiency.
Background technology
Coal mine gas, dust accident are one of disasters of down-hole, if there is gas, dust accident, not only can heavy damage production environment, and can cause casualties, cause huge loss to the people, enterprise, country, therefore, eliminating gas exceeding limit and dust is the precondition of prevention gas, dust accident, is also one of important leverage of mine safety production.
Yet, due to geologic sedimentation effect, a large amount of toxic and harmfuls such as gas in coal seam, have been overstock, in order to realize safe digging, generally, before digging, first to arrange special-purpose gas pumping tunnel, adopt underground drill rig construction extraction borehole to implement in advance gas pumping, after extraction is up to standard, can start digging coal.The construction in gas pumping tunnel generally includes boring and isolates the multiple working procedures such as coal seam.Concrete grammar is to use underground drill rig first to execute the boring of boring certain depth, then drilling rod is changed into for isolating to put in after the drill rod special in coal seam again and in boring, needs the position, coal seam of isolating, and then adopts water under high pressure to isolate coal seam.In order to reach good gas pre-drainage, adopt effect, conventionally require boring to there is certain degree of depth, and the different depth position of boring need to be isolated coal seam, this just need to repeatedly exit drilling rod and repeatedly change boring drilling rod and isolate the drill rod special in coal seam from boring.This drilling rod Renewal process can take a large amount of engineering times, affects programming.
In the prior art, due to some duration of a project anxiety or other reasons, also can adopt tight boring and the form of construction work of not cutting, but it is very low to adopt its gas pumping rate of extraction tunnel of arranging in this way.At present also there is no to guarantee that the duration can make the method for extraction tunnel successful again.
Summary of the invention
The object of the invention is the problem that can not simultaneously take into account in order to solve gas pumping tunnel complex procedures, working procedure duration and tunnel mash gas extraction effect, proposed a kind of integrated brill and cut drilling rod.
Technical scheme of the present invention is: integrated brill cuts drilling rod, it is characterized in that, comprises drilling rod main body, sealing of hole assembly and spurt hole assembly;
The connection male that described drilling rod main body comprises the through hole that axially runs through and two ends pairing be connected female, described through hole is pyramidal structure in one end of drilling rod; Sealing of hole assembly is positioned in through hole, comprises taper sealing of hole plug and pressure spring, and the end face that taper sealing of hole plug is larger is connected with pressure spring one end face, and described sealing of hole plug mates with the pyramidal structure of through hole, for shutoff through hole; Described spurt hole assembly is arranged in drilling rod main body, comprises jet flow through hole, and the through hole of jet flow through hole and drilling rod main body is vertical and be positioned at the rear of sealing of hole plug.
Preferably, in the through hole of described drilling rod main body, be provided with jump ring, jump ring is used for limiting sealing of hole assembly.Spurt hole assembly adopts removable structure, is specially sinking bolt, and described sinking bolt is connected with drill rod thread, and jet flow through hole is arranged on sinking bolt.
Further, above-mentioned spurt hole is the horn mouth shape that import large outlet is little, further to improve the effect of isolating jet.
The invention has the beneficial effects as follows: at present for gas pumping tunnel is formerly arranged in the security needs of assurance pit mining, conventionally the gas pumping tunnel adopting has two kinds, a kind of is directly to have drill hole of drilling machine to obtain drainage holes, another kind is suitably must isolate gap by isolating the mode increases such as coal seam in boring, with regard to effect, the latter's gas pumping amount can reach the former 5 to 8 times conventionally, but the latter is due to complex procedures, therefore need to take the longer duration as cost, mainly because need constantly to change the conversion of drilling rod hole with cutting action in boring procedure.The integrated brill that the present invention proposes cuts drilling rod by spurt hole assembly and sealing of hole plug assembly are set on drilling rod, make same set of equipment can hole and isolate coal seam simultaneously, only need conversion to supply with the pressure of the hydraulic fluid of drilling rod, use boring pressure to supply with hydraulic fluid and can implement normal drilling operating, use cutting pressure to supply with hydraulic fluid and can implement cutting action.Its principle is that the hydraulic fluid of different pressures can make the pressure spring of sealing of hole assembly produce the different pressures to sealing of hole plug, when pressure is more greatly, sealing of hole plug is just larger to the pressure of drilling rod pyramidal structure, and now most hydraulic fluid just ejects to isolate coal seam from jet flow through hole.Realized boring and cut integratedly, while having saved boring and cutting action conversion, changed time of drill rod special, when saving the duration, guaranteed that the extraction tunnel of arranging has better effect.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of sealing of hole assembly of the present invention.
Fig. 3 is the structural representation of spurt hole assembly of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Figure 1, integrated brill cuts drilling rod, it is characterized in that, comprises drilling rod 1, sealing of hole assembly 2 and spurt hole assembly 3; The connection male 11 that wherein drilling rod main body comprises the through hole that axially runs through and two ends pairing be connected female 12, described through hole is pyramidal structure in one end of drilling rod; Sealing of hole assembly is positioned in through hole, comprises taper sealing of hole plug and pressure spring, and the end face that taper sealing of hole plug is larger is connected with pressure spring one end face, and described sealing of hole plug mates with the pyramidal structure of through hole, for shutoff through hole; Described spurt hole assembly is arranged in drilling rod main body, comprises jet flow through hole, and the through hole of jet flow through hole and drilling rod main body is vertical and be positioned at the rear of sealing of hole plug.
Concrete, through hole cuts with hydraulic fluid for delivery of brill, the connection male 11 of different drilling rods be connected female 12 and can interconnect, form longer drilling rod.Wherein, jackrod structure is pipe-like, and there are the male of connection and female in two ends, and connection male and female can be preferably and be threaded; Through hole is similar to funnel structure in the pyramidal structure of one end of drilling rod, for coordinating with sealing of hole assembly the switching of carrying out mode of operation; Hydraulic fluid conventionally adopts water in engineering application, also can adopt other hydraulic fluids, and its object is mainly lower the temperature and under high pressure isolate coal seam for drilling rod boring procedure, and hydraulic fluid is preferably water here.Preferably, in the through hole of described drilling rod main body, be provided with jump ring, jump ring is used for limiting sealing of hole assembly.Spurt hole assembly adopts removable structure, is specially sinking bolt, and described sinking bolt is connected with drill rod thread, and jet flow through hole is arranged on sinking bolt.
As shown in Figure 2, described sealing of hole assembly 2 comprises sealing of hole plug 21 and the pressure spring 22 of taper, the larger end face of described taper sealing of hole plug 21 is freely positioned in through hole after being connected with pressure spring 22 1 end faces, the diameter of the larger end face of described sealing of hole plug 21 is greater than the minimum diameter of described through hole pyramidal structure, described pressure spring 22 according to the pressure-acting of described hydraulic fluid on sealing of hole plug 21 so that drilling rod 1 boring and cut between two functions and change; As shown in Figure 3, the spurt hole assembly 3 of the present embodiment comprises and being arranged in drilling rod 1 main body along the drilling rod 1 jet flow through hole 311 of through hole and space outerpace described in UNICOM radially, and the position of described jet flow through hole 311 meets the height that its distance to drilling rod pyramidal structure place end face is greater than taper sealing of hole plug 21.Its operating principle is as follows: the external diameter of taper sealing of hole plug and pressure spring is consistent, and be less than the through hole internal diameter of drilling rod, sealing of hole assembly is put into drilling rod through hole and can be free to slide, when fluid pressure hour, its pressure to pressure spring and sealing of hole plug is also less, sealing of hole plug is less to the obstruction dynamics of through-hole passage, therefore flowing to drill bit from the gap of sealing of hole plug and through hole, most of liquid normally carries out to guarantee boring, when fluid pressure increases to a certain degree such as during to 8MPa-10MPa, pressure spring and sealing of hole plug be subject to pressure that liquid is huge and almost shutoff the through hole of drilling rod (now do not block drilling rod through hole completely, some liquid flows through with cooling drill bit from the gap between sealing of hole plug and drilling rod), a large amount of highly pressurised liquids are spouting from the spurt hole assembly of drilling rod, the high-pressure spray ejecting can be used for isolating coal seam.So, adopt after this drilling rod, by adjusting, supply with the pressure of hydraulic fluid and can realize the conversion of boring and cutting function, and need not change target drill, greatly save the duration.
As shown in Figures 1 and 3, spurt hole assembly 3 is preferably removable sinking bolt arrangement, specifically comprise the sinking bolt thread hole 32 and the corresponding sinking bolt 31 that on drilling rod 1, along drilling rod 1, radially arrange, described sinking bolt 31 comprises jet flow through hole 311, and described jet flow through hole 311 axis overlap with sinking bolt shaft 31 lines.The preferred version that the spurt hole assembly of above-mentioned sinking bolt arrangement is the present embodiment, because jet flow through hole need to bear very high pressure conventionally, therefore be to hold one of flimsy parts, adopt the jet flow through-hole structure of this sinking bolt can make the jet flow through hole and the drilling rod that easily damage separate, when breaking down, jet flow through hole can make up by changing the sinking bolt of spurt hole assembly, can reduce use cost, economize on resources.
Further, above-mentioned jet flow through hole 311 is designed to the horn mouth shape that import large outlet is little, further to improve the effect of isolating jet.Because cutting coal seam mainly depends on the high-pressure energy of hydraulic fluid, but when high-pressure energy sprays from jet flow through hole because the jet flow shape of through holes difference extent of damage differs greatly, when conventionally horn mouth airflow design can finely must guarantee liquid ejection, its high-pressure energy loss is less, therefore adopt the jet flow via design of the horn mouth shape that import large outlet is little in the preferred version of the present embodiment.
The concrete engineering of take is below analyzed the effect of the present embodiment as example:
Adopt the integrated brill of the present embodiment to cut drilling rod due to without repeating upper and lower drilling rod, therefore reduce the drilling construction time, can be expressed as follows: T=(L1/L2) * t1 * S1 * S2+T1; Wherein, T1=(L1/V) * 2 * S1 * S2, therefore T=(L1/L2) * t1 * S1 * S2+ (L1/V) * 2 * S1 * S2, in formula, each character implication is as follows: T saves time (min), L1 single hole length (m), L2 run of steel (m), the upper and lower bar time of t1 (every) (min), each drilling holes at the drilling yard number (individual) of S1, S2 needs the drill site number (individual) of waterpower cutting, and V fltting speed (pushing away empty speed) is (m/min).
For a certain engineering, suppose that its drilling depth requires L1=36m, run of steel L2=0.8m, upper lower beam time t1=1min, each drilling holes at the drilling yard number S1=10, needs the drill site number S2=181 that cuts in water, fltting speed (pushing away empty speed) V=10m/min, T=(36/0.8) * 1 * 10 * 181+36/10 * 2 * 10 * 181=94482min that saves time, T=is about 65.61 days.By result of calculation, drawn, for the engineering that is similar to above-mentioned drill site parameter, after the drilling rod of employing the present embodiment, will make 65.61 days approximately in advance duration of a project, greatly improve engineering efficiency, reduce engineering cost.
In addition, by the boring after cutting is carried out to effect expedition, the drilling gas after cutting is 5-8 times of not cutting drilling from discharge capacity, and single hole extraction concentration, on average 50%～80%, is easy to find out, after the drilling rod application of the present embodiment, has obtained positive effect.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not depart from essence of the present invention according to these technology enlightenments disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (4)
1. integrated brill cuts drilling rod, it is characterized in that, comprises drilling rod main body, sealing of hole assembly and spurt hole assembly;
The connection male that described drilling rod main body comprises the through hole that axially runs through and two ends pairing be connected female, described through hole is pyramidal structure in one end of drilling rod; Sealing of hole assembly is positioned in through hole, comprises taper sealing of hole plug and pressure spring, and the end face that taper sealing of hole plug is larger is connected with pressure spring one end face, and described sealing of hole plug mates with the pyramidal structure of through hole, for shutoff through hole; Described spurt hole assembly is arranged in drilling rod main body, comprises jet flow through hole, and the through hole of jet flow through hole and drilling rod main body is vertical and be positioned at the rear of sealing of hole plug.
2. integrated brill according to claim 1 cuts drilling rod, it is characterized in that, in the through hole of described drilling rod main body, is provided with jump ring, and jump ring is used for limiting sealing of hole assembly.
3. integrated brill according to claim 1 cuts drilling rod, it is characterized in that, described spurt hole assembly is sinking bolt, and described sinking bolt is connected with drill rod thread, and jet flow through hole is arranged on sinking bolt.
4. integrated brill according to claim 2 cuts drilling rod, it is characterized in that, described jet flow through hole is toroidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543230.8A CN103628824A (en) | 2013-11-05 | 2013-11-05 | Drilling and cutting integrated drill pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543230.8A CN103628824A (en) | 2013-11-05 | 2013-11-05 | Drilling and cutting integrated drill pipe |
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| CN103628824A true CN103628824A (en) | 2014-03-12 |
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| CN201310543230.8A Pending CN103628824A (en) | 2013-11-05 | 2013-11-05 | Drilling and cutting integrated drill pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989287A (en) * | 2014-12-02 | 2015-10-21 | 成都宸鸿科技有限公司 | Multipurpose drill pipe |
Citations (5)
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| US20090272519A1 (en) * | 2005-02-24 | 2009-11-05 | Green David A | Gas lift plunger assembly arrangement |
| RU2387791C1 (en) * | 2009-03-27 | 2010-04-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Downhole equipment centraliser |
| CN101936160A (en) * | 2010-08-11 | 2011-01-05 | 郑州煤炭工业(集团)有限责任公司 | Three-soft coal bed rotary-cut drilling elimination outburst method and rotary-cut drilling device |
| WO2011090491A1 (en) * | 2010-01-19 | 2011-07-28 | Frank's International, Inc. | Downhole device actuator and method |
| CN202266197U (en) * | 2011-09-01 | 2012-06-06 | 张吉亮 | Efficient internal-pressure-resistance friction welding tunnel drill rod |
-
2013
- 2013-11-05 CN CN201310543230.8A patent/CN103628824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090272519A1 (en) * | 2005-02-24 | 2009-11-05 | Green David A | Gas lift plunger assembly arrangement |
| RU2387791C1 (en) * | 2009-03-27 | 2010-04-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Downhole equipment centraliser |
| WO2011090491A1 (en) * | 2010-01-19 | 2011-07-28 | Frank's International, Inc. | Downhole device actuator and method |
| CN101936160A (en) * | 2010-08-11 | 2011-01-05 | 郑州煤炭工业(集团)有限责任公司 | Three-soft coal bed rotary-cut drilling elimination outburst method and rotary-cut drilling device |
| CN202266197U (en) * | 2011-09-01 | 2012-06-06 | 张吉亮 | Efficient internal-pressure-resistance friction welding tunnel drill rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989287A (en) * | 2014-12-02 | 2015-10-21 | 成都宸鸿科技有限公司 | Multipurpose drill pipe |
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Application publication date: 20140312 |