CN107489389A - A kind of pneumatic down-hole hammer drilling well well head three-level sealing structure - Google Patents
A kind of pneumatic down-hole hammer drilling well well head three-level sealing structure Download PDFInfo
- Publication number
- CN107489389A CN107489389A CN201710761897.3A CN201710761897A CN107489389A CN 107489389 A CN107489389 A CN 107489389A CN 201710761897 A CN201710761897 A CN 201710761897A CN 107489389 A CN107489389 A CN 107489389A
- Authority
- CN
- China
- Prior art keywords
- sealing
- seal member
- flange
- well head
- hole hammer
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 102
- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 239000004816 latex Substances 0.000 claims abstract description 22
- 229920000126 latex Polymers 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007373 indentation Methods 0.000 claims description 23
- 239000004922 lacquer Substances 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of pneumatic down-hole hammer drilling well well head three-level sealing structure, outer tube including being arranged in inwall at well head, wellhead flange is equipped with the top of outer tube, the wellhead flange includes being bolted upper flange plate and lower flange together, inner sleeve is fixed with wellhead flange intermediate coaxial, it is close to inner sleeve between upper flange plate and lower flange and is referred to as first order sealing provided with seal washer, sealing short tube is threaded with interior cannula tip, secondary seal mechanism is connected with by sealing flange on sealing short tube, above sealing tubing string interior sealing plug third level sealing is referred to as provided with drilling rod sealer, it is provided with that landwaste is counter arranges mouth on sealing tubing string below rolling bearing；So as to which two latex sealing blocks are close to force together when left seal member and right seal member close, preferably sealing effectiveness is served on the contact surface.
Description
Technical field
The invention belongs to pneumatic down-hole hammer drilling applications, more particularly to a kind of pneumatic down-hole hammer drilling well is sealed with well head three-level
Structure.
Background technology
At present, ground rapid drilling has become a new technology of mine rescue, is got through for mine rescue
One " life channel ", the perfect rescue of especially Chilean mine disaster and the mine disaster of China Pingyi, it was demonstrated that the technology is quick, effect
Significantly.But the step for getting through simply mine rescue key of " life channel ", to rescue trapped personnel, it is also necessary to
" passway for escaping " is major diameter well（Hole diameter is not less than φ 650mm）Foundation.At present, the main technique of " passway for escaping " is just to follow
Ring pneumatic down-hole hammer drilling technology and reacting cycle pneumatic down-hole hammer drilling technology.
Both technologies is required for injecting pressure-air from ground by air compressor machine, so as to discharge well by shaft bottom landwaste is counter
Outside, air speed is needed to be at least up to 15m/s when being arranged because landwaste is counter, thus in drilling process, the anti-gas velocity that empties of well head is fast, mesh
Preceding wellhead sealing can't reach good sealing effectiveness, and the numerous and diverse drilling progress of operating process is slow, while to the body of worker
Health has a strong impact on.
The content of the invention
The present invention seeks to propose a kind of pneumatic down-hole hammer drilling well to solve above-mentioned problems of the prior art
With well head three-level sealing structure, adopted the technical scheme that to reach above-mentioned purpose：
A kind of pneumatic down-hole hammer drilling well well head three-level sealing structure, including the outer tube of inwall at well head is arranged in, it is outside
Wellhead flange is equipped with the top of sleeve pipe, the wellhead flange includes being bolted upper flange plate and lower flange together
Disk, inner sleeve is fixed with wellhead flange intermediate coaxial, and inner sleeve is close between upper flange plate and lower flange and is provided with sealing
Packing ring is referred to as first order sealing, and sealing short tube is threaded with interior cannula tip, passes through Sealing Method on sealing short tube
Orchid is connected with secondary seal mechanism, and the secondary seal mechanism includes sealing tubing string, is fixed with sealing tubing string for supporting
The rolling bearing of drilling rod, the perforation being used for through drilling rod is provided with the inner ring of rolling bearing, will equipped with seal rubber plug in perforation
It is referred to as second level sealing, and third level sealing is referred to as provided with drilling rod sealer above sealing tubing string interior sealing plug,
Sealing tubing string below rolling bearing is provided with that landwaste is counter to arrange mouth.
Preferably, the drilling rod sealer includes the left seal member of equal semicircular in shape housing and right seal member, Zuo Mi
One end of envelope part and right seal member is hinged, and the other end is bolted to connection and forms a circular configuration；Left sealing
Part is identical with right seal member structure, and the left seal member is enclosed and formed by upper half plectane, lower half plectane, arc side plate
The semicircular shell with opening surface, be embedded with semicircular latex sealing block in left seal member, the latex sealing
The shape of block matches with semicircular shell shape, the first semicircular indentations is provided with the circle centre position of latex sealing block, in upper half
The rectangular indentation circumscribed with the first semicircular indentations, the first semicircular indentations diameter etc. are equipped with plectane and lower half plectane
In the long edge lengths of rectangular indentation；The rectangular indentation of left seal member and the rectangular indentation of right seal member surround one and are used to fix
The square breach of square kelly.
Preferably, the planar section of latex sealing block protrudes the opening surface of left seal member.
Preferably, multiple perforation are provided with upper half plectane and lower half plectane, are furnished with perforation close for fixing latex
Seal the screw of block.
Preferably, the first sealing lacquer disk(-sc) and the second sealing lacquer disk(-sc), first fluid sealant are integrally formed with seal rubber plug
Disk is held for sealed rotation shaft, and the second sealing lacquer disk(-sc) is close to the bottom surface of drilling rod sealer.
Preferably, it is provided with seal pipe top end and is used to covering the end cap of drilling rod sealer, end cap includes the first half domes
With the second half domes, the first half domes and the second half dome one end are hinged, and the other end is bolted to connection and forms one
Round end cap, it is equipped with the second semicircular indentations at the center of the first end cap and the second end cap and encloses a circumferential notch,
Circumferential notch is used for through drilling rod.
Preferably, it is provided with casing elevator in interior cannula tip.
The advantageous effect of present invention is that：（1）The setting sealed by the first order, which prevents, has lacked landwaste in import
Or the anti-row of compressed gas；（2）The setting of second level sealing placed landwaste and be sprayed when discharging that landwaste is counter to be arranged mouthful along kelly bar
Go out and influence job site；（3）Need constantly to add new sleeve pipe during drilling well, this requires drilling rod sealer energy
Enough it is rapidly assembled and disassembled without influenceing drilling progress, above-mentioned Fast Installation has been reached using left seal member and right seal member
With the requirement of dismounting；（4）Latex sealing block inside left seal member and right seal member serves further sealing to drilling rod,
Better seal effect is reached；Latex sealing block while seal request is reached, also reduces making using circumferential notch
Cost；（5）The planar section of latex sealing block protrudes the opening surface of left seal member, so as in left seal member and right sealing
Two latex sealing blocks are close to force together when part closes, and serve preferably sealing effectiveness on the contact surface；（6）In upper semi-circle
The screw that plate and lower half plectane are provided with prevents latex sealing block to occur mobile mistake in left seal member and right seal member
The generation of position phenomenon.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of drilling rod sealer；
Fig. 3 is the structural representation of left seal member；
Fig. 4 is Fig. 3 right view；
Fig. 5 is the structural representation of end cap.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of pneumatic down-hole hammer drilling well well head three-level sealing structure, including it is arranged in inwall at well head
Outer tube 15, wellhead flange is equipped with the top of outer tube 15, and the wellhead flange includes being bolted together
Upper flange plate 13 and lower flange 14, inner sleeve 16 is fixed with wellhead flange intermediate coaxial, set is provided with the top of inner sleeve 61
Pipe elevator 2, fall when adding sleeve pipe to prevent anti-avulsion, inner sleeve 16 is close between upper flange plate 13 and lower flange 14 provided with close
Seal washer 1 is referred to as first order sealing, and sealing short tube 12 is threaded with the top of inner sleeve 16, leads on sealing short tube 12
Cross sealing flange 3 and be connected with secondary seal mechanism, the secondary seal mechanism includes sealing tubing string 5, fixed in sealing tubing string 5
There is the rolling bearing 10 for supports drill rods 17, the perforation being used for through drilling rod 17 is provided with the inner ring 4 of rolling bearing 10, is being worn
Second level sealing is referred to as equipped with seal rubber plug 38 in hole, being provided with drilling rod above the sealing interior sealing plug 38 of tubing string 5 seals
Device 6 is referred to as third level sealing, is provided with that landwaste is counter to arrange mouth 11 on the sealing tubing string 5 below rolling bearing 10.
As shown in Figure 2, Figure 3 and Figure 4, the drilling rod sealer 6 includes the He of left seal member 27 of equal semicircular in shape housing
Right seal member 22, one end of left seal member 27 and right seal member 22 are hinged, and are such as welded in one end of left seal member 27
There is the first articulated elements 25, the second articulated elements 23 is welded with one end of right seal member 22, the first articulated elements 25 and second is be hinged
Part 23 is be hinged by bearing pin 24, and the other end is fixedly connected by bolt 19 to form a circular configuration, in left seal member 27
With the nut 18 for fixing bolt 19 is welded with right seal member 22；Left seal member 27 and the structure phase of right seal member 22
Together, the left seal member 27 is that have opening surface by what upper half plectane 31, lower half plectane 32, arc side plate 30 enclosed
Semicircular shell, semicircular latex sealing block 21, the shape of the latex sealing block 21 are embedded with left seal member 27
Match with semicircular shell shape, the first semicircular indentations 20 are provided with the circle centre position of latex sealing block 21, in upper half plectane
31 and lower half plectane 32 on be equipped with the rectangular indentation 26 circumscribed with the first semicircular indentations 20, first semicircular indentations 20
Diameter is equal to 26 long edge lengths of rectangular indentation；The rectangular indentation 26 of left seal member 27 and the rectangular indentation of right seal member 22 are enclosed
The square breach for being used to fix square kelly 17 into one.
After left seal member 27 and right seal member 22 close, in order to prevent from producing larger gap at contact surface
Sealing effectiveness is influenceed, the planar section 29 of latex sealing block 21 protrudes the opening surface of left seal member 27.
In use, in order to prevent latex sealing block 21 from being moved in left seal member 27 and right seal member 22
Dynamic dislocation, is provided with multiple perforation on upper half plectane 31 and lower half plectane 32, is furnished with perforation and is used to fix latex sealing block
21 screw 28.
The first sealing lacquer disk(-sc) 9 and the second sealing lacquer disk(-sc) 8, the first sealing lacquer disk(-sc) 9 are integrally formed with seal rubber plug 38
10 are held for sealed rotation shaft, the bottom surface that the second sealing lacquer disk(-sc) 8 is close to drilling rod sealer 6 is used for sealing drilling rod sealer 6.
As shown in figure 5, being provided with the end cap 7 for being used for covering drilling rod sealer 6 on sealing tubing string 5 top, end cap 7 includes first
Half dome 34 and the second half domes 36, the first half domes 34 and the second half one end of dome 36 are be hinged by bearing pin 33, and the other end leads to
Cross bolt 35 to be fixedly connected and form a round end cap, the second half are equipped with the center of the first end cap 34 and the second end cap 36
Circumferential notch and enclose a circumferential notch 37, circumferential notch 37 is used for through drilling rod.
Seal washer 1 is placed between ring flange 13 and lower flange 14 in the use of the present invention, being put into inner sleeve 16
In groove, tighten bolt and complete first order sealing；Kelly bar 17 is transferred, secondary seal mechanism is arranged on the top of inner sleeve 16,
Load seal rubber plug 38 in the inner ring 4 of rolling bearing 10 and complete second level sealing；Open the left seal member 27 of drilling rod sealer 6
It is set in right seal member 22 on kelly bar 17, finally it is close to complete the third level for the dome 34 of closure the first half and the second half domes 36
Envelope.
Compressed air enters pneumatic down-hole hammer out of kelly bar 17, and driving pneumatic down-hole hammer does work, and acts on the brill of front end
On head, at the same rig drive pneumatic down-hole hammer and drill bit revolution and carry out impact rotating detritus drilling, then through kelly bar 17 with
Anti- row's passage between inner sleeve 16 drives landwaste to return to ground by the anti-mouth 11 of arranging of landwaste.When the section inner sleeve of drill bit advance one
During length, open end cap 7 and pull down drilling rod sealer 6 and secondary seal mechanism successively, the new sleeve pipe in lower section, then progressively pacify again
Load onto state three-level sealing, the like until drilling terminate.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
But these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (7)
1. a kind of pneumatic down-hole hammer drilling well well head three-level sealing structure, including the outer tube of inwall at well head is arranged in, it is special
Sign is, wellhead flange is equipped with the top of outer tube, and the wellhead flange includes being bolted upper method together
Blue disk and lower flange, inner sleeve is fixed with wellhead flange intermediate coaxial, is close between upper flange plate and lower flange interior
Sleeve pipe is referred to as first order sealing provided with seal washer, and sealing short tube is threaded with interior cannula tip, in sealing short tube
Upper to be connected with secondary seal mechanism by sealing flange, the secondary seal mechanism includes sealing tubing string, solid in sealing tubing string
Surely there is the rolling bearing for supports drill rods, the perforation being used for through drilling rod is provided with the inner ring of rolling bearing, is matched somebody with somebody in perforation
There is seal rubber plug to be referred to as second level sealing, the is referred to as provided with drilling rod sealer above sealing tubing string interior sealing plug
Three-level seals, and is provided with that landwaste is counter to arrange mouth on the sealing tubing string below rolling bearing.
2. pneumatic down-hole hammer drilling well according to claim 1 well head three-level sealing structure, it is characterised in that the drilling rod
Sealer includes one end of the left seal member of equal semicircular in shape housing and right seal member, left seal member and right seal member
Be hinged, the other end is bolted to connection and forms a circular configuration；Left seal member is identical with right seal member structure,
The left seal member is the semicircular shell with opening surface enclosed by upper half plectane, lower half plectane, arc side plate,
Semicircular latex sealing block, shape and the semicircular shell shape phase of the latex sealing block are embedded with left seal member
Matching, the first semicircular indentations are provided with the circle centre position of latex sealing block, are equipped with upper half plectane and lower half plectane and the
The circumscribed rectangular indentation of one semicircular indentations, the first semicircular indentations diameter are equal to the long edge lengths of rectangular indentation；Left sealing
The rectangular indentation of part and the rectangular indentation of right seal member surround the square breach for being used to fix square kelly.
3. pneumatic down-hole hammer drilling well according to claim 2 well head three-level sealing structure, it is characterised in that latex seals
The planar section of block protrudes the opening surface of left seal member.
4. the pneumatic down-hole hammer drilling well well head three-level sealing structure according to Claims 2 or 3, it is characterised in that upper
Semi-circular plate and lower half plectane are provided with multiple perforation, are furnished with the screw for being used for fixing latex sealing block in perforation.
5. pneumatic down-hole hammer drilling well according to claim 1 or 2 well head three-level sealing structure, it is characterised in that close
Sealing is integrally formed with the first sealing lacquer disk(-sc) and the second sealing lacquer disk(-sc) beyond the Great Wall, and the first sealing lacquer disk(-sc) is held for sealed rotation shaft,
Second sealing lacquer disk(-sc) is close to the bottom surface of drilling rod sealer.
6. pneumatic down-hole hammer drilling well according to claim 1 or 2 well head three-level sealing structure, it is characterised in that close
Tube sealing top end, which is provided with, is used to covering the end cap of drilling rod sealer, and end cap includes the first half domes and the second half domes, and the first half
Dome and the second half dome one end are hinged, and the other end is bolted to connection and forms a round end cap, in the first end cap
The second semicircular indentations are equipped with the center of the second end cap and enclose a circumferential notch, and circumferential notch is used for through brill
Bar.
7. pneumatic down-hole hammer drilling well according to claim 1 or 2 well head three-level sealing structure, it is characterised in that inside
Cannula tip is provided with casing elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710761897.3A CN107489389B (en) | 2017-08-30 | 2017-08-30 | Wellhead three-stage sealing structure for pneumatic down-the-hole hammer drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710761897.3A CN107489389B (en) | 2017-08-30 | 2017-08-30 | Wellhead three-stage sealing structure for pneumatic down-the-hole hammer drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107489389A true CN107489389A (en) | 2017-12-19 |
| CN107489389B CN107489389B (en) | 2023-08-08 |
Family
ID=60646148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710761897.3A Active CN107489389B (en) | 2017-08-30 | 2017-08-30 | Wellhead three-stage sealing structure for pneumatic down-the-hole hammer drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107489389B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716377A (en) * | 2018-08-15 | 2018-10-30 | 杨福苗 | A kind of gas well device for plugging and gas well drilling equipment |
| CN110700788A (en) * | 2019-09-29 | 2020-01-17 | 魏海虎 | Broken water pipe reinforcing device |
| CN110792407A (en) * | 2018-08-02 | 2020-02-14 | 中国石油天然气股份有限公司 | Oil sleeve annular flow control device |
| CN112360342A (en) * | 2020-09-28 | 2021-02-12 | 中煤科工开采研究院有限公司 | Quick drilling hole sealing integration drilling rod |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792407A (en) * | 2018-08-02 | 2020-02-14 | 中国石油天然气股份有限公司 | Oil sleeve annular flow control device |
| CN108716377A (en) * | 2018-08-15 | 2018-10-30 | 杨福苗 | A kind of gas well device for plugging and gas well drilling equipment |
| CN108716377B (en) * | 2018-08-15 | 2024-04-16 | 杨福苗 | Gas well plugging device and gas well drilling equipment |
| CN110700788A (en) * | 2019-09-29 | 2020-01-17 | 魏海虎 | Broken water pipe reinforcing device |
| CN112360342A (en) * | 2020-09-28 | 2021-02-12 | 中煤科工开采研究院有限公司 | Quick drilling hole sealing integration drilling rod |
| CN112360342B (en) * | 2020-09-28 | 2022-12-20 | 中煤科工开采研究院有限公司 | Quick drilling hole sealing integration drilling rod |
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| Publication number | Publication date |
|---|---|
| CN107489389B (en) | 2023-08-08 |
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Address after: Floor 23, Henan Coalfield Science and Technology Center Building, No. 70, Shangding Road, Zhengzhou District (Zhengdong), Zhengzhou Free Trade Zone, 450,000, Henan Applicant after: Henan Yuzhong Geological Exploration Engineering Co.,Ltd. Address before: East of 1-6, 10th Floor, Henan Coalfield Science and Technology Center Building, No. 70 Shangding Road, Zhengdong New District, Zhengzhou City, Henan Province, 450000 Applicant before: HENAN YUZHONG GEOLOGICAL PROSPECTING ENGINEERING CO. |
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