CN209261527U - A kind of long range multi-stage cementing hole packer with slurry recovering tube - Google Patents
A kind of long range multi-stage cementing hole packer with slurry recovering tube Download PDFInfo
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- CN209261527U CN209261527U CN201821731324.2U CN201821731324U CN209261527U CN 209261527 U CN209261527 U CN 209261527U CN 201821731324 U CN201821731324 U CN 201821731324U CN 209261527 U CN209261527 U CN 209261527U
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- grouting pipe
- recovering tube
- slurry
- slurry recovering
- hole
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Abstract
The utility model discloses a kind of long range multi-stage cementing hole packer with slurry recovering tube, including Grouting Pipe and pouch, the Grouting Pipe is divided into two sections of front and back, explosive valve is equipped between the Grouting Pipe of two sections of front and back, a pouch is socketed in leading portion Grouting Pipe, it is socketed with several pouches in back segment Grouting Pipe, the part that Grouting Pipe is wrapped up by pouch is equipped with check valve, and the end of leading portion Grouting Pipe and back segment Grouting Pipe is respectively equipped with rubber hose coupling and plug；The fluid filling hole sealing device is equipped with slurry recovering tube, and slurry recovering tube is arranged in parallel with Grouting Pipe, and rubber hose coupling is equipped at the grouting port of slurry recovering tube.The utility model technique short-cut opera is convenient: after hole packer is sent into drilling, sealing of hole process can be completed by single slip casting, improve work efficiency；Grouting with pressure airtightness is strong: by grouting with pressure, so that slurries is sufficiently pressed into drilling circumferential crack, it is real to fill up note；Sealing of hole distance process, and the success rate of sealing of hole greatly improves.
Description
Technical field
The utility model relates to coal mine gas extraction drill hole technical fields, and in particular to for a kind of length with slurry recovering tube away from
From multi-stage cementing hole packer.
Background technique
90% or more coal mine of China uses pit mining, and highly gassy mine and Gas Outburst mine accounting be up to 48%, watt
This disaster problem is extremely prominent.According to statistics, the big major accident of China's coal-mine seven (top plate, gas, transport, it is permeable, blow out, fire
Calamity and Electromechanical Accidents) in, Gas Disaster accident accounts for 70%, becomes the No.1 factor for restricting highly gassy mine safety in production.To protect
Hinder high gas layer safe working, downhole coal mine production scene generally before working face is normally exploited, arranges one in work coal seam
Fixed extraction borehole installs extraction pump, by negative pressure extraction, until the gas bearing capacity in coal seam is reduced to safety value.Gas
Sealing of hole airtightness, gas permeability of coal seam, the design of drainage device and the operating personnel of extracting result and extraction drilling arrangement, drilling
The factors such as installation level are closely related, and a large amount of field research discovery: the tightness of extraction borehole sealing of hole directly decides watt
This extraction rate size, becoming influences one of most important factor of gas pumping effect.Domestic and international mash gas pumping drilling sealing of hole mode,
Current various hole packer sealed borehole lengths can not achieve long range sealing of hole, bag type paste hole packer sealed borehole length generally within 20m
When greater than 20m, the failure of injection hole sealing, especially long range inclined drill, upward hole are easily caused due to sealing of hole power deficiency
Rear pouch or lower there is sealing of hole failure because excessively high pressure cannot be born to the preceding pouch in hole；Existing hole packer can only seal
One hole, extraction sealing section is with inner gas, when in strata penetration hole including two layers of coal, cannot implement gas pumping to two layers of coal simultaneously
It adopts.
Utility model content
The utility model is exactly in view of the deficienciess of the prior art, provide a kind of long range multistage with slurry recovering tube
Fluid filling hole sealing device.
A kind of long range multi-stage cementing hole packer with slurry recovering tube, including Grouting Pipe and pouch, the Grouting Pipe are divided into
Two sections of front and back is equipped with explosive valve between the Grouting Pipe of two sections of front and back, is socketed with a pouch in leading portion Grouting Pipe, covers in back segment Grouting Pipe
Several pouches are connected to, the part that Grouting Pipe is wrapped up by pouch is equipped with check valve, the end of leading portion Grouting Pipe and back segment Grouting Pipe
It is respectively equipped with rubber hose coupling and plug.The fluid filling hole sealing device is equipped with slurry recovering tube, and slurry recovering tube is arranged in parallel with Grouting Pipe, slurry recovering tube
Grouting port at be equipped with rubber hose coupling.
As an improvement of the above scheme, the slurry recovering tube between adjacent two pouch, which is equipped with, returns slurry hole.
As an improvement of the above scheme, between two adjacent two pouches positioned at front end, and positioned at rearmost end
Slurry recovering tube between two adjacent two pouches, which is equipped with, returns slurry hole.
As an improvement of the above scheme, the explosive valve connects the slip casting of two sides by attaching type connector or fast-connecting type connector
Pipe.
As an improvement of the above scheme, the explosive valve is diaphragm type explosive valve or glue pipe type explosive valve.
As an improvement of the above scheme, the pouch is sewed by anti-electrostatic fire retardant cloth, and the number of plies is single-layer or multi-layer.
As an improvement of the above scheme, the pouch is fixed in Grouting Pipe by casing.
The utility model structure is simple, and rationally, technique short-cut opera is convenient for design: after hole packer is sent into drilling, passing through list
The sealing of hole process entirely to drill can be completed in one slip casting, greatly simplified compared with the sealing of hole operational sequence of other kind hole packers, subtracts
Labor intensity of workers is lacked, has improved work efficiency；Grouting with pressure airtightness is strong: by grouting with pressure, being pressed into slurries sufficiently
Note is filled up in fact in borehole circumference crack, and borehole sealing accomplishes closed tight, gas extraction concentration height；Sealing of hole distance process:
Many places, which block segmenting slip casting technique, may be implemented the sealing of hole of long range, and the success rate of sealing of hole greatly improves.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the long range multi-stage cementing hole packer with slurry recovering tube and three pouches；
Fig. 2 is the structural schematic diagram of the long range multi-stage cementing hole packer with slurry recovering tube and four pouches；
Fig. 3 is the structural schematic diagram of long range multi-stage cementing hole packer；
Fig. 4 is long range multi-stage cementing hole packer mounting process schematic diagram.
In figure: Grouting Pipe 1, pouch 2, explosive valve 3, check valve 4, rubber hose coupling 5, plug 6, slurry recovering tube 7 return slurry hole 71.
Specific embodiment
With reference to the accompanying drawing, the technical solution of the utility model is further described.Obviously, described embodiment
Only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ability
It is practical new to belong to this for domain those of ordinary skill every other embodiment obtained without making creative work
The range of type protection.
Embodiment 1 referring to Fig.1, a kind of long range multi-stage cementing hole packer with slurry recovering tube and three pouches, including note
Starch pipe 1 and pouch 2, Grouting Pipe 1 is divided to for two sections of front and back, is equipped with explosive valve 3 between the Grouting Pipe 1 of two sections of front and back, is covered in leading portion Grouting Pipe 1
It is connected to a pouch 2, there are two pouch 2, the part that Grouting Pipe 1 is wrapped up by pouch 2 is equipped with unidirectional for socket in back segment Grouting Pipe 1
The end of valve 4, leading portion Grouting Pipe 1 and back segment Grouting Pipe 1 is respectively equipped with rubber hose coupling 5 and plug 6.The fluid filling hole sealing device is equipped with
Slurry recovering tube 7, slurry recovering tube 7 are arranged in parallel with Grouting Pipe 1, and the slurry recovering tube 7 between adjacent two pouch 2, which is equipped with, returns slurry hole 71, slurry recovering tube
Rubber hose coupling 5 is equipped at 7 grouting port.
Further, explosive valve 3 connects the Grouting Pipe 1 of two sides by attaching type connector or fast-connecting type connector.
Further, explosive valve 3 is diaphragm type explosive valve or glue pipe type explosive valve.
Further, pouch 2 is sewed by anti-electrostatic fire retardant cloth, and the number of plies is single-layer or multi-layer.
Further, pouch 2 is fixed in Grouting Pipe 1 by casing.
When being worked, which ties up with gas drainage hole sealing tube
It pricks, the rubber hose coupling 5 in Grouting Pipe 1 is connect with grouting pump, starts grouting pump, cement grout enters Grouting Pipe 1, due to check valve
4 effect, slurries successively enter in three pouches 2, expand after 2 slip casting of pouch, the outer diameter of pouch 2 is fastened on hole wall, real
It is blocked at three in existing hole；Wherein 3 explosion of explosive valve when slurry pressure is greater than 1MPa, slurries flow into the brill among two pouches 2
Hole and its circumferential crack, slurries cover on slurry recovering tube 7 when returning slurry hole 71, slurries are by outside 7 tap hole of slurry recovering tube；By grouting pump
Slurry pipe be changed to from 7 slip casting of slurry recovering tube, Grouting Pipe 1 is closed；Slurries are infused from the slurry hole 71 of returning on slurry recovering tube 7 into drilling at this time
Slurry, with grouting filling, slurry pressure to design final pressure value 2Mpa or technical measures specified value, termination of pumping.Termination of pumping rear slurry because after
Continue and is permeated and pressure release, Ying Jixu turn on pump slip casting to crack；Until pressure gauge variable quantity no more than 0.5Mpa is in 30min after slip casting
Slip casting is completed.
Embodiment 2 is referring to Fig. 2, a kind of long range multi-stage cementing hole packer with slurry recovering tube and four pouches, including note
Starch pipe 1 and pouch 2, Grouting Pipe 1 is divided to for two sections of front and back, is equipped with explosive valve 3 between the Grouting Pipe 1 of two sections of front and back, is covered in leading portion Grouting Pipe 1
It is connected to a pouch 2, there are three pouch 2, the part that Grouting Pipe 1 is wrapped up by pouch 2 is equipped with unidirectional for socket in back segment Grouting Pipe 1
The end of valve 4, leading portion Grouting Pipe 1 and back segment Grouting Pipe 1 is respectively equipped with rubber hose coupling 5 and plug 6.The fluid filling hole sealing device is equipped with
Slurry recovering tube 7, slurry recovering tube 7 are arranged in parallel with Grouting Pipe 1, and the slurry recovering tube 7 between adjacent two pouch 2, which is equipped with, returns slurry hole 71, slurry recovering tube
Rubber hose coupling 5 is equipped at 7 grouting port.
Further, explosive valve 3 connects the Grouting Pipe 1 of two sides by attaching type connector or fast-connecting type connector.
Further, explosive valve 3 is diaphragm type explosive valve or glue pipe type explosive valve.
Further, pouch 2 is sewed by anti-electrostatic fire retardant cloth, and the number of plies is single-layer or multi-layer.
Further, pouch 2 is fixed in Grouting Pipe 1 by casing.
When being worked, which ties up with gas drainage hole sealing tube
It pricks, the rubber hose coupling 5 in Grouting Pipe 1 is connect with grouting pump, starts grouting pump, cement grout enters Grouting Pipe 1, due to check valve
4 effect, slurries successively enter in four pouches 2, expand after 2 slip casting of pouch, the outer diameter of pouch 2 is fastened on hole wall, real
It is blocked everywhere in existing hole；Wherein 3 explosion of explosive valve when slurry pressure is greater than 1MPa, slurries flow into the brill among two pouches 2
Hole and its circumferential crack, slurries cover on slurry recovering tube 7 when returning slurry hole 71, slurries are by outside 7 tap hole of slurry recovering tube；By grouting pump
Slurry pipe be changed to from 7 slip casting of slurry recovering tube, Grouting Pipe 1 is closed；Slurries are infused from the slurry hole 71 of returning on slurry recovering tube 7 into drilling at this time
Slurry, with grouting filling, slurry pressure to design final pressure value 2Mpa or technical measures specified value, termination of pumping.Termination of pumping rear slurry because after
Continue and is permeated and pressure release, Ying Jixu turn on pump slip casting to crack；Until pressure gauge variable quantity no more than 0.5Mpa is in 30min after slip casting
Slip casting is completed.
Embodiment 3 is referring to Fig. 3-4, a kind of long range multi-stage cementing hole packer with slurry recovering tube and three pouches, packet
Include Grouting Pipe 1 and pouch 2, the Grouting Pipe 1 is divided to for two sections of front and back, is equipped with explosive valve 3, leading portion note between the Grouting Pipe 1 of two sections of front and back
A pouch 2 is socketed on slurry pipe 1, socket is there are three pouch 2 in back segment Grouting Pipe 1, the part that Grouting Pipe 1 is wrapped up by pouch 2
Equipped with check valve 4, the end of leading portion Grouting Pipe 1 and back segment Grouting Pipe 1 is respectively equipped with rubber hose coupling 5 and plug 6；The injection hole sealing
Device is equipped with slurry recovering tube 7, and slurry recovering tube 7 is arranged in parallel with Grouting Pipe 1, between two adjacent two pouches 2 of front end, Yi Jiwei
Slurry recovering tube 7 between two adjacent two pouches 2 of rearmost end, which is equipped with, returns slurry hole 71, is equipped with sebific duct at the grouting port of slurry recovering tube 7
Connector 5.
When being worked, which ties up with gas drainage hole sealing tube
It pricks, the rubber hose coupling 5 in Grouting Pipe 1 is connect with grouting pump, starts grouting pump, cement grout enters Grouting Pipe 1, due to check valve
4 effect, slurries successively enter in four pouches 2, expand after 2 slip casting of pouch, the outer diameter of pouch 2 is fastened on hole wall, real
It is blocked everywhere in existing hole；Wherein 3 explosion of explosive valve when slurry pressure is greater than 1MPa, slurries flow into the brill among two pouches 2
Hole and its circumferential crack, slurries cover on slurry recovering tube 7 when returning slurry hole 71, slurries are by outside 7 tap hole of slurry recovering tube；By grouting pump
Slurry pipe be changed to from 7 slip casting of slurry recovering tube, Grouting Pipe 1 is closed；Slurries are infused from the slurry hole 71 of returning on slurry recovering tube 7 into drilling at this time
Slurry, with grouting filling, slurry pressure to design final pressure value 2Mpa or technical measures specified value, termination of pumping.Termination of pumping rear slurry because after
Continue and is permeated and pressure release, Ying Jixu turn on pump slip casting to crack；Until pressure gauge variable quantity no more than 0.5Mpa is in 30min after slip casting
Slip casting is completed.The utility model can be to two coal seams while gas extraction.
The technical performance and basic size of the utility model:
| Project | Unit | FKW-3-113/1.2 |
| Slip casting length of tube 1 | m | 20~30 (three pouches) |
| Slip casting length of tube 2 | m | 30~40 (four pouches) |
| Slip casting length of tube 3 | m | 20~40 (extracting double coal-bed gas) |
| Gas sealing of hole pipe outside diameter | mm | 30~63 |
| Pouch inflated outer diameter | mm | 160 |
| It is applicable in outer diameter | mm | 63~133 |
| Pouch minimum burst pressure | MPa | 3.6 |
| Operating pressure | MPa | 1.2 |
The utility model has the advantages that the utility model structure is simple, technique short-cut opera is convenient: after hole packer is sent into drilling, passing through list
The sealing of hole process entirely to drill can be completed in one slip casting, greatly simplified compared with the sealing of hole operational sequence of other kind hole packers, subtracts
Labor intensity of workers is lacked, has improved work efficiency；Grouting with pressure airtightness is strong: by grouting with pressure, being pressed into slurries sufficiently
Note is filled up in fact in borehole circumference crack, and borehole sealing accomplishes closed tight, gas extraction concentration height；Sealing of hole distance process:
Many places, which block segmenting slip casting technique, may be implemented the sealing of hole of long range, and the success rate of sealing of hole greatly improves.
Claims (7)
1. a kind of long range multi-stage cementing hole packer with slurry recovering tube, including Grouting Pipe (1) and pouch (2), it is characterised in that:
The Grouting Pipe (1) is divided into two sections of front and back, is equipped with explosive valve (3) between the Grouting Pipe (1) of two sections of front and back, leading portion Grouting Pipe covers on (1)
It is connected to a pouch (2), several pouches (2), the portion that Grouting Pipe (1) is wrapped up by pouch (2) are socketed in back segment Grouting Pipe (1)
It is arranged with check valve (4), the end of leading portion Grouting Pipe (1) and back segment Grouting Pipe (1) is respectively equipped with rubber hose coupling (5) and plug
(6)；The fluid filling hole sealing device is equipped with slurry recovering tube (7), and slurry recovering tube (7) is arranged in parallel with Grouting Pipe (1), the slip casting of slurry recovering tube (7)
Rubber hose coupling (5) are equipped at mouthful.
2. a kind of long range multi-stage cementing hole packer with slurry recovering tube according to claim 1, it is characterised in that: institute
It states slurry recovering tube (7) between adjacent two pouch (2) and is equipped with and return slurry hole (71).
3. a kind of long range multi-stage cementing hole packer with slurry recovering tube according to claim 1, it is characterised in that: institute
Rheme is between two adjacent two pouches (2) of front end, and the slurry recovering tube between two adjacent two pouches (2) of rearmost end
(7) it is equipped with and returns slurry hole (71).
4. a kind of long range multi-stage cementing hole packer with slurry recovering tube according to claim 1, it is characterised in that: institute
State the Grouting Pipe (1) that explosive valve (3) connect two sides by attaching type connector or fast-connecting type connector.
5. a kind of long range multi-stage cementing hole packer with slurry recovering tube according to claim 1, it is characterised in that: institute
Stating explosive valve (3) is diaphragm type explosive valve or glue pipe type explosive valve.
6. a kind of long range multi-stage cementing hole packer with slurry recovering tube according to claim 1, it is characterised in that: institute
Stating pouch (2) is sewed by anti-electrostatic fire retardant cloth, and the number of plies is single-layer or multi-layer.
7. a kind of long range multi-stage cementing hole packer with slurry recovering tube according to claim 1, it is characterised in that: institute
Pouch (2) is stated to be fixed on Grouting Pipe (1) by casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821731324.2U CN209261527U (en) | 2018-10-25 | 2018-10-25 | A kind of long range multi-stage cementing hole packer with slurry recovering tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821731324.2U CN209261527U (en) | 2018-10-25 | 2018-10-25 | A kind of long range multi-stage cementing hole packer with slurry recovering tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209261527U true CN209261527U (en) | 2019-08-16 |
Family
ID=67558822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821731324.2U Active CN209261527U (en) | 2018-10-25 | 2018-10-25 | A kind of long range multi-stage cementing hole packer with slurry recovering tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209261527U (en) |
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2018
- 2018-10-25 CN CN201821731324.2U patent/CN209261527U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 232000 4th floor, building B1, Huainan Internet Economic Industrial Park, high tech Zone, Huainan City, Anhui Province Patentee after: HUAINAN DATUN GROUTING ENGINEERING Co.,Ltd. Address before: 232000 High-tech Enterprise Incubator Building 2, Huainan High-tech Zone, Anhui Province, 3 and 4 floors Patentee before: HUAINAN DATUN GROUTING ENGINEERING Co.,Ltd. |