CN110130850A - Packing_seal preventer - Google Patents
Packing_seal preventer Download PDFInfo
- Publication number
- CN110130850A CN110130850A CN201910555246.8A CN201910555246A CN110130850A CN 110130850 A CN110130850 A CN 110130850A CN 201910555246 A CN201910555246 A CN 201910555246A CN 110130850 A CN110130850 A CN 110130850A
- Authority
- CN
- China
- Prior art keywords
- packing
- preventer
- outer tube
- drilling rod
- rear end
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims abstract description 42
- 238000012856 packing Methods 0.000 claims abstract description 30
- 230000004308 accommodation Effects 0.000 claims abstract description 13
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 230000002265 prevention Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding 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
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
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 packing_seal preventer, including orifice tube, the rear end of orifice tube is connected to the first penstock by threeway, and the other end of the first penstock is connected to blowout prevention component by two-way joint；Blowout prevention component includes an outer tube, the front end of outer tube is provided with connecting flange, rear end, which is provided with outside preventer, fills in, outer tube is set in the outside of drilling rod, and it forms accommodation space between drilling rod, the front end of accommodation space is provided with packing, and rear end is arranged a pressure pipe, and the rear end of pressure pipe is connected with a gland；The present invention prevents drilling from squeezing into the water-jet that flows out in the biggish situation of aquifer water pressure to drilling machine, water yield can increase suddenly when especially pulling out of hole, according to water pump packing sealing structure and principle, preventer has been added on orifice tube, by installing and using, it solves above-mentioned security risk, provides safe practice guarantee during leting speeper is drilled, effectively to control water.
Description
[technical field]
The invention belongs to colliery downhole equipment technical field more particularly to a kind of packing_seal preventers.
[background technique]
In underground coal mine back production or tunneling process, inevitably approaches, discloses or involve and destroy certain water-bearing layers
(body), during drilling, once linking up water-bearing layer, the increase that inflow rate of mine water can be sudden, water is difficult to control, it will
It floods face, flood well, disconnected electricity of becalming, or even can also jeopardize the life of people, it will be catastrophic irreversible accident, at present not yet
The method having had is controlled.
[summary of the invention]
The object of the present invention is to provide a kind of packing_seal preventers, to solve the water yield in underground coal mine drill process
Big problem.
The invention adopts the following technical scheme: packing_seal preventer, for covering in the outside of well mouth drill, including aperture
Pipe, the rear end of orifice tube are connected to the first penstock by threeway, and the other end of the first penstock is connected to by two-way joint
Blowout prevention component；
Blowout prevention component include an outer tube, the front end of outer tube be provided with for two-way joint connecting flange, rear end is set
It is equipped with outside preventer and fills in, outer tube is set in the outside of drilling rod, and it forms accommodation space between drilling rod, before accommodation space
End is provided with packing, and rear end is arranged a pressure pipe, and the rear end of pressure pipe is connected with a gland, packing for being wrapped in drilling rod, and
It is filled in accommodation space under the pressure effect of pressure pipe, to realize the sealing outside drilling rod.
Further, the side of threeway is equipped with pressure gauge, and the other side is equipped with the second penstock.
Further, plug is identical as gland shape outside preventer, and through-hole is offered on corresponding position, and pass through fastening
Bolt is connected.
Further, the distance between housing bore and drilling rod outer diameter are equal to the wall thickness of pressure pipe.
Further, the sum of the length of pressure pipe and the circular length of packing are greater than the length of outer tube.
Further, the internal diameter of connecting flange is less than the outer diameter of outer tube.
Further, fill in outside preventer is rounded diamond.
The beneficial effects of the present invention are: the present invention prevents drilling from squeezing into the water-jet flowed out in the biggish situation of aquifer water pressure
To drilling machine, water yield can increase suddenly when especially pulling out of hole, and according to water pump packing sealing structure and principle, add on orifice tube
Preventer solves above-mentioned security risk, mentions leting speeper is drilled during, effectively to control water by installing and using
Safe practice guarantee is supplied.
[Detailed description of the invention]
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of blowout prevention component in the present invention.
Wherein: 1. orifice tubes；2. threeway；3. the first penstock；4. packing；5. pressure pipe；6. two-way joint；7. pressure gauge；
8. drilling rod；9. the second penstock；10. being filled in outside preventer；11. connecting flange；12. fastening bolt；13. gland；14. outer tube.
[specific embodiment]
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The invention discloses a kind of packing_seal preventers, as shown in Figure 1, for covering in the outside of well mouth drill 8, including
Orifice tube 1, is mounted at the aperture of drilling, for positioning drilling rod.The rear end of orifice tube 1 is connected to the first water by threeway 2
Valve 3, threeway 2 generally use T-type threeway, two opposite mouth is used to passing through for drilling rod 8, and vertical mouth is used to carry out when necessary
Draining., can be after the extraction of drilling rod 8 by the first penstock 3, connection water pipe is drained.
The other end of first penstock 3 is connected to blowout prevention component by two-way joint 6.Connecting mouth 6 by two can buffer
The pressure of first penstock 3, if being directly connected to blowout prevention component and the first penstock 3, the water in the first penstock 3 directly impacts
To seal assembly, the service life that long-time punching press will lead to seal assembly shortens.
In addition, being equipped with pressure gauge 7 in the side of threeway 2, the other side is equipped with the second penstock 9, can by pressure gauge 7
It to monitor the hydraulic pressure in entire drilling in real time, when hydraulic pressure is greater than certain pressure, needs to extract out drilling rod and is drained, by the
Two penstocks 9, water is small when due to drilling, the water in it can be discharged by the valve in drilling.In addition, by pressure gauge 7
It is separately positioned on the two sides of threeway 2 with the second penstock 9, is to reduce when pressure gauge 7 measures hydraulic pressure by the second penstock 9
The dynamic influence of ambient water, increases the accuracy of pressure gauge 7.
Blowout prevention component include an outer tube 14, the front end of outer tube 14 be provided with for 6 connecting flange 11 of two-way joint,
It is connected by connecting flange 11 with the rear end of two-way joint 6.Due to needing to wind packing 4 in outer tube 14, packing 4 is used for
It is wrapped on the drilling rod 8, and is filled in accommodation space under the effect of the pressure of pressure pipe 5, it is close outside drilling rod 8 to realize
Envelope.The baffle for stopping 4 forward slip of packing is needed in front of packing, and the internal diameter of connecting flange 11 is reduced in the present invention, is made
Its outer diameter for being less than outer tube 14, the baffle by the part that is inwardly indented as packing 4, blocking packing 4 receive forward pressure
When forward slip.
It is provided with outside preventer in the rear end of outer tube 14 and fills in 10, be connected by filling in 10 outside preventer with gland 13, with
Realize the fixation between gland 13 and pressure pipe 5 and outer tube 14.Outer tube 14 is set in the outside of drilling rod 8, and itself and drilling rod
Accommodation space is formed between 8, the front end of accommodation space is provided with packing 4.In order to apply pressure to packing 4, in outer tube 14
Portion rear end is arranged a pressure pipe 5, covers outside drilling rod, and packing 4 is squeezed by the closing of pressure pipe 5, makes packing 4 in the work of extruding force
With lower expansion and entire accommodation space, and then realize the sealing between outer tube 14 and drilling rod 8, water passes through the sky when placing drilling
Between spray.
The rear end of pressure pipe 5 is connected with a gland 13, and gland 13 is identical as 10 shapes are filled in outside preventer, and on corresponding position
Through-hole is offered, it is rounded diamond that 10 are filled in outside preventer, and is connected by fastening bolt 12, it is equipped with internal screw thread in through-holes,
For cooperating with fastening bolt 12, with tightening for fastening bolt 12, the continuous pressed forwards packing 4 of gland 13 makes packing 4 will
Water-stop, by the cooperation of screw thread and fastening bolt, effect cooperates better than screw bolt and nut.
In order to increase the pressure of pressure pipe 5, the distance between 14 internal diameter of outer tube and 8 outer diameter of drilling rod are equal to the wall thickness of pressure pipe 5,
The inner and outer wall of pressure pipe 5 in this way can be close to the inner wall of drilling rod and outer tube 14 respectively, the rear portion full of accommodation space, at this time
Packing 4 is squeezed again, and the lex primaria of packing 4 is stronger, and sealing effect is more.Since packing 4 is that have soft material support, pressure is being received
Have when power and slightly deform, so, when winding packing 4, the length that can be wrapped on drilling rod is slightly longer, in this way its
When receiving the pressure of pressure pipe 5, it can be sufficiently adjacent to 14 inner wall of drilling rod and outer tube, enhance leakproofness, i.e., with the length with pressure pipe 5
The sum of degree and the circular length of packing 4 are greater than the length of outer tube 14.
In the present embodiment, outer tube 14 designs overall length 100mm, and main body is made of 4 cun of ring flanges and steel pipe, and inside is filled out
Packing is filled to seal water outlet.
Two-way joint 6 is connected using 4 cun of two-way joints of one section of 200mm long with penstock, is led to by penstock and three
It connects, 2 cun of gate valves and pressure gauge is mounted in threeway, is finally linked together with the orifice tube of 3m long.
14 designing material of outer tube uses [Q235] 4 cun of steel pipes to make, the cost of material is low and ensure that steel pipe plasticity and
Toughness provides enough resistance external force intensity, the various ways such as can take welding, be bolted, being connected firmly, be not easy to take off
It falls, is fully able to meet underground work demand.
Packing_seal preventer of the invention plays extraordinary effect in the application of mine working face drilling leting speeper
Fruit, the device is simple, at low cost, light-weight, operation is easily grasped, and drills for leting speeper and provides reliable safe practice, answers
This is worthy of popularization.
The application method of preventer of the present invention are as follows:
Fastening bolt is tightened when under drilling rod to jewel hole bottom, forces packing 4 to be expanded, packing 4 is made to play the role of sealing water.
Since packing 4 is closed when recirculated water returns, outflow is opened by the penstock 9 (2 cun of gate valves) in threeway 2, without penetrating
To drilling machine.
When drilling rod squeezes into water-bearing layer, the instruction of 7 hydraulic pressure of pressure gauge increases, and can stop drilling.
When trip-out, when core barrel pulls out two-way joint 6, the first penstock 3 is closed, unclamps the screw on connecting flange 11,
Preventer is dismantled, discharge pipe line is connected, opens the brake gate door on the first penstock 3, so that it may proper drainage.
Claims (7)
1. packing_seal preventer, which is characterized in that described for covering the outside in well mouth drill (8), including orifice tube (1)
The rear end of orifice tube (1) is connected to the first penstock (3) by threeway (2), and the other end of first penstock (3) passes through two
Pass joint (6) is connected to blowout prevention component；
The blowout prevention component include an outer tube (14), the front end of the outer tube (14) be provided with for the two-way joint
(6) connecting flange (11) connected, rear end, which is provided with outside preventer, fills in (10), and the outer tube (14) is set in drilling rod (8)
Outside, and it forms accommodation space between the drilling rod (8), the front end of the accommodation space is provided with packing (4), rear end cap
If a pressure pipe (5), the rear end of the pressure pipe (5) is connected with a gland (13), and the packing (4) is for being wrapped in the drilling rod
(8) it on, and is filled in the accommodation space under the effect of the pressure of pressure pipe (5), to realize the external sealing of drilling rod (8).
2. packing_seal preventer as described in claim 1, which is characterized in that the side of the threeway (2) is equipped with pressure
Table (7), the other side are equipped with the second penstock (9).
3. packing_seal preventer as claimed in claim 2, which is characterized in that fill in (10) and the gland outside the preventer
(13) shape is identical, and through-hole is offered on corresponding position, and is connected by fastening bolt (12).
4. packing_seal preventer as claimed in claim 3, which is characterized in that outer tube (14) internal diameter and drilling rod (8)
The distance between outer diameter is equal to the wall thickness of the pressure pipe (5).
5. packing_seal preventer as described in claim 3 or 4, which is characterized in that the length of the pressure pipe (5) and the disk
The sum of circular length of root (4) is greater than the length of the outer tube (14).
6. packing_seal preventer as described in claim 3 or 4, which is characterized in that the internal diameter of the connecting flange (11) is small
Outer diameter in the outer tube (14).
7. packing_seal preventer as described in claim 3 or 4, which is characterized in that filling in (10) outside the preventer is fillet
Diamond shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555246.8A CN110130850A (en) | 2019-06-25 | 2019-06-25 | Packing_seal preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555246.8A CN110130850A (en) | 2019-06-25 | 2019-06-25 | Packing_seal preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110130850A true CN110130850A (en) | 2019-08-16 |
Family
ID=67579516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910555246.8A Pending CN110130850A (en) | 2019-06-25 | 2019-06-25 | Packing_seal preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130850A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203285380U (en) * | 2013-04-17 | 2013-11-13 | 河北同成科技股份有限公司 | Blowout preventer for water exploration operation in underground coal mine |
| CN203702071U (en) * | 2014-01-17 | 2014-07-09 | 湖南涟邵建设工程(集团)有限责任公司 | Water inrush preventing drill ejecting device for water exploration and grouting construction of vertical shaft |
| CN104863605A (en) * | 2015-04-20 | 2015-08-26 | 北京中煤矿山工程有限公司 | Once-through drilling method capable of cutting barriers in water-rich sand layer |
| CN205778694U (en) * | 2016-06-28 | 2016-12-07 | 平煤神马建工集团有限公司 | Leting speeper high-tension blowout-prevention device |
| CA2961815A1 (en) * | 2017-03-23 | 2018-09-23 | Brian Gibbs | Sonic coring blowout preventer system and method |
| CN208057083U (en) * | 2018-04-08 | 2018-11-06 | 徐州大屯工程咨询有限公司 | A kind of high hydraulic pressure drilling orifice blowout hookup |
| CN210105808U (en) * | 2019-06-25 | 2020-02-21 | 陕西陕煤韩城矿业有限公司 | Packing sealing blowout preventer |
-
2019
- 2019-06-25 CN CN201910555246.8A patent/CN110130850A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203285380U (en) * | 2013-04-17 | 2013-11-13 | 河北同成科技股份有限公司 | Blowout preventer for water exploration operation in underground coal mine |
| CN203702071U (en) * | 2014-01-17 | 2014-07-09 | 湖南涟邵建设工程(集团)有限责任公司 | Water inrush preventing drill ejecting device for water exploration and grouting construction of vertical shaft |
| CN104863605A (en) * | 2015-04-20 | 2015-08-26 | 北京中煤矿山工程有限公司 | Once-through drilling method capable of cutting barriers in water-rich sand layer |
| CN205778694U (en) * | 2016-06-28 | 2016-12-07 | 平煤神马建工集团有限公司 | Leting speeper high-tension blowout-prevention device |
| CA2961815A1 (en) * | 2017-03-23 | 2018-09-23 | Brian Gibbs | Sonic coring blowout preventer system and method |
| CN208057083U (en) * | 2018-04-08 | 2018-11-06 | 徐州大屯工程咨询有限公司 | A kind of high hydraulic pressure drilling orifice blowout hookup |
| CN210105808U (en) * | 2019-06-25 | 2020-02-21 | 陕西陕煤韩城矿业有限公司 | Packing sealing blowout preventer |
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