CN207472663U - Pressure hole internal drainage release hydraulic type packer - Google Patents
Pressure hole internal drainage release hydraulic type packer Download PDFInfo
- Publication number
- CN207472663U CN207472663U CN201721667934.6U CN201721667934U CN207472663U CN 207472663 U CN207472663 U CN 207472663U CN 201721667934 U CN201721667934 U CN 201721667934U CN 207472663 U CN207472663 U CN 207472663U
- Authority
- CN
- China
- Prior art keywords
- flow valve
- pressure
- draining
- relief means
- valve body
- 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.)
- Withdrawn - After Issue
Links
- 208000005189 Embolism Diseases 0.000 claims abstract description 58
- 239000002775 capsule Substances 0.000 claims abstract description 32
- 238000007569 slipcasting Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 230000035699 permeability Effects 0.000 abstract description 13
- 230000009471 action Effects 0.000 abstract description 2
- 238000012669 compression test Methods 0.000 abstract description 2
- 238000005065 mining Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009699 differential effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010102 embolization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model is related to a kind of pressure hole internal drainage release hydraulic type packers, belong to the fields such as grouting and packer permeability test broken charges xegregating unit.Eccentric reducing catcher is threadedly coupled with draining pressure relief means thereon, high pressure is filled pipe and is connected through a screw thread with draining pressure relief means thereon, embolism capsule is threadedly coupled with draining pressure relief means thereon, core pipe upper end is threadedly coupled with draining pressure relief means thereon, core pipe lower end is slidably connected with embolism capsule lower end, and high-pressure slip-casting pipe is fixedly connected with draining pressure relief means thereon and runs through eccentric reducing catcher and core pipe.The utility model utilizes pressure balance principle, embolism capsule has been reliably achieved to repeat to fill and thorough draining release action in hole, sufficient verification has been obtained in engineering practice, ground adaptability is strong, has good popularizing application prospect in fields such as grouting, packer permeability test, diametral compression test and mining site gas drainage under suctions.
Description
Technical field
The utility model belongs to the fields such as grouting and packer permeability test broken charges xegregating unit.
Background technology
1st, China's grouting (pressure water) Industry
Grouting can be divided into aperture grouting and packer grouting, and China's grouting industry mostly carries out aperture filling using orifice closing method
Slurry, the technique carry out low-pressure grouting, and less efficient due to the shallow bore hole that the limitation of itself is generally only applicable within 15m.
Packer grouting and packer permeability test be unable to do without embolism, and embolism is the key that carry out drilling subsection isolation utensil.It is domestic normal
Grouting (packer permeability test) embolism seen has mechanical roof pressing type, vapour-pressure type and common hydraulic type.The rubber plug of mechanical roof pressing type embolism is swollen
Swollen property is limited, is adapted to complete ground consisting of hard rock, is not suitable in soft rock and is in the milk compared with fragmented rock body or packer permeability test (therefore pressure water
Testing regulations suggests preferential selection vapour-pressure type embolism or hydraulic type embolism), and be difficult to meet high-pressure grouting and be segmented from bottom to top
The requirement of grouting, efficiency is low, and casey accident easily occurs；Vapour-pressure type embolism is high using high-pressure pump cost, and use is high-pressure aerated
Bottle, uses cumbersome, exists simultaneously security risk, and since gas has compressibility, embolism can be shunk by high pressure
It deforms and leakage even sliding plug accident occurs, therefore be not suitable for progress high-pressure grouting or packer permeability test；Hydraulic type embolism safety, can
It leans on, is economical, since water has opposite Incoercibility, therefore hydraulic pressure embolism is a kind of ideal for carrying out high-pressure grouting and packer permeability test
Embolism.Domestic common hydraulic pressure embolism can only realize that aperture discharges water at present, and embolism capsule is in aperture to the water colunm pressure masterpiece for filling in position
Under, difficulty is shunk, casey and the failure of disconnected plug often occurs, therefore the general shallow bore hole being only suitable within 30m is in the milk or pressed water
Experiment.
2nd, in recent years the achievement in research of hydraulic type embolism and there are the problem of
Hydraulic type embolism opposite Incoercibility since safe and reliable, economic and water has, therefore in grouting and packer permeability test
There is irreplaceable advantage in the fields of grade, but due to the limitation of thorough this bottle of strength technical barrier of draining release of embolism capsule, make
Obtaining hydraulic type embolism can not further genralrlization application.For many years, many experts and scholar are thorough to solve hydraulic type embolism in industry
Draining unloading technology problem in bottom has made numerous studies work, also achieves many achievements in research, and it is substantially former that these achievements summarize it
Manage for using drilling rod rotation, lifting or pushing the embolism discharging valve opening channel that discharges water is driven to carry out thorough draining in hole.They
The shortcomings that maximum is to can not achieve to repeat to fill and discharge water therefore can not realize in hole in hole to work continuously or execute-in-place is very numerous
It is trivial to be not easy to control easily to be out of order to lead to drilling accident.When filling in that position is unreasonable to need in hole string to seek rationally plug position or need in hole
When carrying out contiguous segmentation grouting or packer permeability test, such embolism just seems awkward, helpless.
So drilling subsection partition method is still continued to use based on mechanical roof pressing type embolism in grouting at present and packer permeability test, hydraulic pressure
Construction method is isolated with the drilling subsection supplemented by vapour-pressure type embolism.
Invention content
The utility model provides a kind of pressure hole internal drainage release hydraulic type packer, to solve embolism capsule in hole
It cannot repeat to fill and the halfway problem of draining release.
The technical scheme adopted by the utility model is that eccentric reducing catcher is threadedly coupled with draining pressure relief means thereon, high pressure is filled
Plug pipe is connected through a screw thread with draining pressure relief means thereon and O-ring seal is utilized to seal, embolism capsule and draining pressure relief means thereon screw thread
It connects and O-ring seal is utilized to seal, core pipe upper end is threadedly coupled with draining pressure relief means thereon and O-ring seal is utilized to seal, core
Pipe lower end is slidably connected with embolism capsule lower end and O-ring seal is utilized to seal, and high-pressure slip-casting pipe is fixed with draining pressure relief means thereon
It connects and runs through eccentric reducing catcher and core pipe.
The structure of the draining pressure relief means thereon is：Balancing spring is installed in the eccentric orfice of flow valve body, flow valve rod from
Balancing spring upper end penetrates, the eccentric aperture of lower end and flow valve body is slidably connected, and flow valve rod upper end is slided with flow valve pocket
Coordinate and sealed with O-ring seal, flow valve pocket is threadedly coupled with flow valve body and is sealed with O-ring seal, flow valve pocket
Upper end is filled pipe screw thread with high pressure and is connect, and the mouth of a river connection flow valve body that fills of flow valve body fills water channel, flow valve body
That leaves the boundary mouth of a river connection embolism capsule water channel and flow valve body fills water channel, and the discharge outlet connection of flow valve body is extraneous and flat valve
The lower part of body.
The utility model has the advantages that：
(1) embolism capsule fills or draining stress-relief process in bottom hole, completely by adjust the supercharging of ground pressure regulator valve or depressurize Lai
It realizes, easy and safe to operate, light alarmed and panicky quickly realize in hole repeats to fill and draining release action.
(2) the draining release pressure value at draining pressure relief means thereon reaches as high as 10MPa, illustrates under 1000m water column pressures
Embolism capsule can still realize the thorough draining release of bottom hole, therefore embolism hole sealing depth is up to 1000m, in order to which the work for mitigating equipment is born
Lotus, for that can be lower value by draining release design of pressure compared with shallow bore hole.
(3) the pressure water in capsule is directly excreted in the annulus of embolism top hole wall and drilling rod, realizes embolism
The thorough release of capsule.
(4) draining pressure relief means thereon is simple and reliable for structure, and embolism will not occur can not the failures such as draining release.
(5) entire embolism and drilling rod connection are integral, once casey accident occurs, as long as rotate forward drilling rod a few, embolism core
Body is just detached from and extracts out with embolism capsule, thoroughly prevents casey and gives up hole accident.
(6) swollen plug pressure is intuitively reflected by geostatic pressure table, convenient for being monitored to swollen plug pressure.
By studying for many years, by a large number of experiments, the utility model dexterously using pressure balance principle, is reliably achieved
Embolism capsule is repeated to fill in hole and be acted with thorough draining release, has been pulled through prevention hydraulic type embolism and is further sent out
The bottleneck that exhibition technical barrier, and sufficient verification has been obtained in engineering practice, the utility model ground adaptability is strong, is filling
There is good popularizing application prospect in the fields such as slurry, packer permeability test, diametral compression test and mining site gas drainage under suction.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the utility model draining pressure relief means thereon；
Fig. 3 is the utility model use state reference chart.
Specific embodiment
Eccentric reducing catcher 1 is threadedly coupled with draining pressure relief means thereon 4, and high pressure fills pipe 3 and passes through spiral shell with draining pressure relief means thereon 4
Line connects and O-ring seal is utilized to seal, and embolism capsule 5 is threadedly coupled with draining pressure relief means thereon 4 and utilizes O-ring seal close
Envelope, 6 upper end of core pipe is threadedly coupled with draining pressure relief means thereon 4 and is sealed using O-ring seal, under 6 lower end of core pipe and embolism capsule 5
End is slidably connected and is sealed using O-ring seal, and high-pressure slip-casting pipe 2 is fixedly connected with draining pressure relief means thereon 4 and becomes through eccentric
Diameter catcher 1 and core pipe 6.
The structure of the draining pressure relief means thereon 4 is：Balancing spring 403, flow are installed in the eccentric orfice of flow valve body 404
Valve rod 402 is penetrated from 403 upper end of balancing spring, the eccentric aperture of lower end and flow valve body 404 is slidably connected, flow valve rod 402
Upper end is slidably matched with flow valve pocket 401 and is sealed with O-ring seal, flow valve pocket 401 is threadedly coupled with flow valve body 404,
And sealed with O-ring seal, 401 upper end of flow valve pocket is filled pipe 3 with high pressure and is threadedly coupled, and flow valve body 404 fills the mouth of a river
405 connection flow valve bodies 404 fill water channel 407, and the mouth of a river 406 of leaving the boundary of flow valve body 404 connects 5 water channel of embolism capsule and matches
Stream valve body 404 fills water channel 407, and the discharge outlet 408 of flow valve body 404 connects extraneous and flow valve body 404 lower part.
The pressure balance operation principle of the draining pressure relief means thereon：
Increase by force when filling pipe 3 by high pressure and filling hydraulic pressure to the hole in flow valve pocket 401, and reach setting fills pressure
Qiang Shi under the effect of water pressure on 402 flow valve rod tops, overcomes the elastic force resistance of 403 balancing springs, pushes flow valve rod
402 downlinks open the mouth of a river 405 of leaving the boundary filled the mouth of a river 405, simultaneously close off flow valve body 404 of flow valve body 404, fill water
Filling the mouth of a river and filling water channel 407 and directly filled to embolism capsule 5 by flow valve body 404；
At the end of needs are filled, pipe 3 is filled by high pressure and is decreased to less than by force to the hydraulic pressure in the hole in flow valve pocket 401
During the draining pressure of setting, flow valve rod 402 is common in embolism capsule water pressure suffered by the elastic force of balancing spring 403 and its underpart
Under effect, the resistances such as 402 top water pressure of flow valve rod are overcome, push 402 uplink of flow valve rod, close flow valve body 404
Fill the mouth of a river 405, open simultaneously the mouth of a river 406 of leaving the boundary of flow valve body 404, the pressure water in embolism by fill water channel 407, into
Enter the mouth of a river 406 of leaving the boundary of flow valve body 404, the free space being directly discharged to again by discharge outlet 408 outside embolization, go out in fact
Thorough draining release.
The setting of pressure values and draining pressure values is filled, is realized by changing the elasticity of balancing spring 403.
Operation principle：
(packer permeability test is relatively simple, can refer to grouting construction to implement) is new to introduce this practicality by taking grouting construction as an example
Type specific implementation, as shown in figure 3, wherein slurry storing tank 8, grouting pump 9, derrick 10；
(1) using fill water pump 7 by high pressure fill pipe 3 to embolism capsule 5 carry out water-filling pressurization, ground adjust pressure regulation
Valve, hydraulic pressure, which reaches by force, at draining pressure relief means thereon fills pressure and (fills pressure to be set as needed, setting range is general
For 4-15MPa) when, the flow valve rod in draining pressure relief means thereon under pressure differential effect, fill the mouth of a river and fill water channel by opening,
To embolism capsule carry out the swollen plug of water-filling, when reach embolism capsule it is swollen plug design pressure after, closing fill water pump, entire embolism capsule
Stablize just reliably to be extruded in and only starch in section；
(2) slip casting is carried out to slip casting section by high-pressure grouting pipe using grouting pump；
(3) after grouting, release is carried out to the high pressure water in embolism capsule using ground pressure regulator valve, when draining release
Hydraulic pressure at mechanism, which unloads by force, to be depressed into draining pressure (draining pressure can be set as needed, and setting range is generally 1-
When 10MPa), under pressure differential effect, that closes embolism capsule fills the mouth of a river 405 for flow valve rod in draining pressure relief means thereon, and
Open embolism capsule the mouth of a river 406 of leaving the boundary, by the pressure water in capsule by discharge outlet 408 be directly discharged to outside embolization from
By space, embolism capsule is realized the thorough release of bottom hole and is shunk；
(4) play the utility model to next plug position, repeats above step, can realize the grouting of next grout compartment in hole
Work.
Important technological parameters：Seal bore diameter：75mm-110mm；Maximum hole sealing depth：1000m；Fill operating pressure：4-
15MPa；Embolism draining pressure：1-10MPa.
Claims (2)
1. a kind of pressure hole internal drainage release hydraulic type packer, it is characterised in that：Eccentric reducing catcher unloads press with draining
Structure is threadedly coupled, and high pressure fills pipe and draining pressure relief means thereon and is connected through a screw thread and O-ring seal utilize to seal, embolism capsule and
Draining pressure relief means thereon is threadedly coupled and O-ring seal is utilized to seal, and core pipe upper end is threadedly coupled with draining pressure relief means thereon and utilizes O
Type sealing ring seals, and core pipe lower end is slidably connected with embolism capsule lower end and O-ring seal is utilized to seal, high-pressure slip-casting pipe and row
Water pressure relief means thereon is fixedly connected and runs through eccentric reducing catcher and core pipe.
2. a kind of pressure hole internal drainage release hydraulic type packer according to claim 1, it is characterised in that：The draining
The structure of pressure relief means thereon is：Balancing spring is installed in the eccentric orfice of flow valve body, flow valve rod penetrates from balancing spring upper end,
Lower end and the eccentric aperture of flow valve body are slidably connected, and flow valve rod upper end and flow valve pocket are slidably matched and use O-ring seal
Sealing, flow valve pocket are threadedly coupled with flow valve body and are sealed with O-ring seal, and pipe spiral shell is filled in flat valve set upper side with high pressure
Line connects, the water channel that fills for filling mouth of a river connection flow valve body of flow valve body, the mouth of a river connection embolism glue of leaving the boundary of flow valve body
Capsule water channel and flow valve body fill water channel, and the discharge outlet connection of flow valve body is extraneous and the lower part of flow valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721667934.6U CN207472663U (en) | 2017-12-04 | 2017-12-04 | Pressure hole internal drainage release hydraulic type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721667934.6U CN207472663U (en) | 2017-12-04 | 2017-12-04 | Pressure hole internal drainage release hydraulic type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472663U true CN207472663U (en) | 2018-06-08 |
Family
ID=62257061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721667934.6U Withdrawn - After Issue CN207472663U (en) | 2017-12-04 | 2017-12-04 | Pressure hole internal drainage release hydraulic type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207472663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831062A (en) * | 2017-12-04 | 2018-03-23 | 中水东北勘测设计研究有限责任公司 | Pressure hole internal drainage release hydraulic type is in the milk and packer permeability test embolism |
| CN109162660A (en) * | 2018-10-30 | 2019-01-08 | 中国电建集团成都勘测设计研究院有限公司 | Interior anchor formula orifice closing device |
-
2017
- 2017-12-04 CN CN201721667934.6U patent/CN207472663U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831062A (en) * | 2017-12-04 | 2018-03-23 | 中水东北勘测设计研究有限责任公司 | Pressure hole internal drainage release hydraulic type is in the milk and packer permeability test embolism |
| CN107831062B (en) * | 2017-12-04 | 2024-03-08 | 中水东北勘测设计研究有限责任公司 | High-pressure hole internal drainage pressure relief hydraulic grouting and pressurized water test plug |
| CN109162660A (en) * | 2018-10-30 | 2019-01-08 | 中国电建集团成都勘测设计研究院有限公司 | Interior anchor formula orifice closing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180608 Effective date of abandoning: 20240308 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180608 Effective date of abandoning: 20240308 |