CN102767389A - Hole packer for drawing out gas and injecting slurry - Google Patents
Hole packer for drawing out gas and injecting slurry Download PDFInfo
- Publication number
- CN102767389A CN102767389A CN2012102774385A CN201210277438A CN102767389A CN 102767389 A CN102767389 A CN 102767389A CN 2012102774385 A CN2012102774385 A CN 2012102774385A CN 201210277438 A CN201210277438 A CN 201210277438A CN 102767389 A CN102767389 A CN 102767389A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- gas drainage
- joint
- under suction
- suction pipe
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000008961 swelling Effects 0.000 claims description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 22
- 239000003245 coal Substances 0.000 claims description 14
- 238000005553 drilling Methods 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000007712 rapid solidification Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
The invention relates to a hole packer for drawing out gas and injecting slurry. The hole packer is characterized in that a cavity is formed between a gas drainage tube A and a sleeve A; a slurry outlet hole A is formed in the sleeve A in an annular groove; a rubber expansion hose A is arranged on the periphery of the sleeve A; a gap is formed between the sleeve A and the rubber expansion hose A; a joint connecting disc A is arranged on the right side of the rubber expansion hose A on one end of the gas drainage tube A; a slurry injecting hole A and a slurry outlet joint A are arranged at the outer end of the joint connecting disc A; a cavity is formed between the sleeve B and the gas drainage tube B; a slurry outlet hole B is arranged in the annular groove in the sleeve B; inclined tubes are arranged in the joint connecting disc B and the joint connecting disc C; safety valves A are respectively arranged on the slurry outlet joint A and the slurry outlet joint B; and one end of the gas drainage tube A is connected with one end of the gas drainage tube B. The hole packer disclosed by the invention has the benefical effects that the use is convenient, the operation is safe, the sealing effect is good, the long-time sealing can be realized, and the sealing and the slurry injecting can be realized.
Description
Technical field
The present invention relates to the colliery industry, a kind ofly specifically draw out methane and the grouting hole packer, when being applied to draw out methane to the shutoff in slit and grouting between the coal seam in the colliery.
Background technology
Coal and gas are outstanding at present is the natural calamity of a kind of serious mistake under the coal mine; Constantly affect mine safety production; But the extraction coal-bed gas is very difficult usually, generally typically uses the woven bag shutoff now, or uses chemical material reaction shutoff; It is bad that these two kinds of methods all exist plugging effect, and the gas pumping rate is low; Easily burning and cause gas explosion, dangerous; Shortcomings such as constructor's troublesome poeration.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art; Providing a kind of draws out methane and the grouting hole packer; The technical solution adopted for the present invention to solve the technical problems is: structure of the present invention comprises gas drainage under suction pipe A, withholds locking jacket A, rubber swelling sebific duct A, filling adaptor A, joint terminal pad A, pulp joint A, easing valve A, sleeve A, annular groove, slurry outlet A, joint terminal pad B, filling adaptor B, withhold locking jacket B, rubber swelling sebific duct B, sleeve pipe B, gas drainage under suction pipe B, pulp joint B, easing valve B, slurry outlet B, tube connector A, tube connector B, rubber cushion, retainer ring, safety plate, joint terminal pad C; It is characterized in that gas drainage under suction pipe A periphery is provided with sleeve A; Have cavity between gas drainage under suction pipe A and the sleeve A, sleeve A is provided with annular groove, and the sleeve A in the annular groove is provided with slurry outlet A; Annular groove place on sleeve A also is provided with annular gum cover; The sleeve A periphery is provided with rubber swelling sebific duct A, has the gap between sleeve A and the rubber swelling sebific duct A, and the two ends of rubber swelling sebific duct A are fixed together through withholding locking jacket A and sleeve A; Right side at the end rubber swelling sebific duct A of gas drainage under suction pipe A is provided with joint terminal pad A; The outer end of joint terminal pad A is provided with filling adaptor A and pulp joint A, is provided with inclined tube in the joint terminal pad A, and filling adaptor A is communicated with cavity between the gas drainage under suction pipe A through the inclined tube in the joint terminal pad A and sleeve A; Pulp joint A also is communicated with cavity between the gas drainage under suction pipe A through the inclined tube in the joint terminal pad A and sleeve A; Gas drainage under suction pipe B periphery is provided with sleeve pipe B, has cavity between sleeve pipe B and the gas drainage under suction pipe B, and sleeve pipe B is provided with annular groove; Annular groove place on sleeve pipe B is provided with annular gum cover; Be provided with slurry outlet B in the annular groove on sleeve pipe B, the both sides that gas drainage under suction pipe B goes up rubber swelling sebific duct B are respectively arranged with joint terminal pad B and joint terminal pad C, are provided with inclined tube in joint terminal pad B and the joint terminal pad C; Pulp joint B is communicated with cavity between the gas drainage under suction pipe B through the inclined tube in the joint terminal pad C and sleeve pipe B; Filling adaptor B is communicated with cavity between the gas drainage under suction pipe B through the inclined tube in the joint terminal pad B and sleeve pipe B, is provided with easing valve A on pulp joint A and the pulp joint B, is disposed with rubber cushion, safety plate, retainer ring from the inside to surface between easing valve A and the pulp joint A; Pulp joint B is connected with filling adaptor A, and the end of gas drainage under suction pipe A is connected with the end of gas drainage under suction pipe B.
Method for using: drawing out methane and the grouting hole packer is deep in the coal bed drilling of certain depth; Inject chemical pulp or accelerated cement etc.; Make to draw out methane and grouting hole packer connection gas drainage under suction pipeline, the expansion sealing of hole also injects slurry, the slurry rapid solidification in the coal seam; Robust sealed more around the gas extraction hole, draw out methane and the grouting hole packer in the gas drainage under suction pipe insert gas suction pump collection methane gas.An end of hole packer A being gone up gas drainage under suction pipe A inserts in the coal bed drilling, and the other end is connected with gas drainage under suction pipe B, and the pulp joint B on the gas drainage under suction pipe B is connected with filling adaptor A; At first from filling adaptor B slip casting, slurry gets in the cavity between sleeve pipe B and the gas drainage under suction pipe B, in slurry outlet B flows out the space that gets between rubber swelling pipe B and the sleeve pipe B; Through pressure rubber swelling sebific duct B is expanded, when pressure increased to a certain degree, easing valve B was opened; Continue slip casting, slurry gets in the cavity between gas drainage under suction pipe A and the sleeve A through pulp joint B, tube connector B, filling adaptor A, comes out to get in the space between rubber swelling pipe A and the sleeve A through slurry outlet A then; A expands with the rubber swelling sebific duct, and when pressure acquired a certain degree, easing valve A was opened; Continue to inject slurry; Slurry stream flows out from pulp joint A through pulp joint B, tube connector B, filling adaptor A at last, and the slurry of outflow fills up coal bed drilling, the slurry rapid solidification; With the slit shutoff in the coal seam, gas extraction will obtain higher gas drainage efficiency and can not produce leakage accident so again.
The invention has the beneficial effects as follows that the present invention is easy to use, handling safety, plugging effect is good, can realize long-time shutoff, and can shutoff can be in the milk again.
Description of drawings
Fig. 1: embodiment of the invention cross-sectional view.
Fig. 2: embodiment of the invention expansion sebific duct distending structural representation.
Fig. 3: the local structure for amplifying sketch map of the embodiment of the invention.
Fig. 4: embodiment of the invention easing valve structure for amplifying sketch map.
Among the figure: gas drainage under suction pipe A1; Withhold locking jacket A2; Rubber swelling sebific duct A3; Filling adaptor A4; Joint terminal pad A5; Pulp joint A6; Easing valve A7; Sleeve A 8; Annular groove 9; Slurry outlet A10; Joint terminal pad B11; Filling adaptor B12; Withhold locking jacket B13; Rubber swelling sebific duct B14; Sleeve pipe B15; Gas drainage under suction pipe B16; Pulp joint B17; Easing valve B18; Slurry outlet B19; Tube connector A20; Tube connector B21; Rubber cushion 22; Retainer ring 23; Safety plate 24; Joint terminal pad C25.
The specific embodiment
Concrete detailed description below with reference to description of drawings the present invention being done.Shown in accompanying drawing; Structure of the present invention comprises gas drainage under suction pipe A1, withholds locking jacket A2, rubber swelling sebific duct A3, filling adaptor A4, joint terminal pad A5, pulp joint A6, easing valve A7, sleeve A 8, annular groove 9, slurry outlet A10, joint terminal pad B11, filling adaptor B12, withhold locking jacket B13, rubber swelling sebific duct B14, sleeve pipe B15, gas drainage under suction pipe B16, pulp joint B17, easing valve B18, slurry outlet B19, tube connector A20, tube connector B21, rubber cushion 22, retainer ring 23, safety plate 24, joint terminal pad C25; It is characterized in that gas drainage under suction pipe A1 periphery is provided with sleeve A 8; There is cavity between gas drainage under suction pipe A1 and the sleeve A 8; Sleeve A 8 is provided with annular groove 9; Sleeve A 8 in the annular groove 9 is provided with slurry outlet A10; Annular groove 9 places on sleeve A 8 also are provided with annular gum cover; Sleeve A 8 peripheries are provided with rubber swelling sebific duct A3, have the gap between sleeve A 8 and the rubber swelling sebific duct A3, and the two ends of rubber swelling sebific duct A3 are through withholding locking jacket A2 and sleeve A 8 is fixed together; Right side at the end rubber swelling sebific duct A3 of gas drainage under suction pipe A1 is provided with joint terminal pad A5; The outer end of joint terminal pad A5 is provided with filling adaptor A4 and pulp joint A6, is provided with inclined tube in the joint terminal pad A5, and filling adaptor A4 is communicated with cavity between the gas drainage under suction pipe A1 through the inclined tube in the joint terminal pad A5 and sleeve A 8; Pulp joint A6 also is communicated with cavity between the gas drainage under suction pipe A1 through the inclined tube in the joint terminal pad A5 and sleeve A 8; Gas drainage under suction pipe B16 periphery is provided with sleeve pipe B15, has cavity between sleeve pipe B15 and the gas drainage under suction pipe B16, and sleeve pipe B15 is provided with annular groove; Annular groove place on sleeve pipe B15 is provided with annular gum cover; Be provided with slurry outlet B19 in the annular groove on sleeve pipe B15, the both sides that gas drainage under suction pipe B16 goes up rubber swelling sebific duct B14 are respectively arranged with joint terminal pad B11 and joint terminal pad C25, are provided with inclined tube in joint terminal pad B11 and the joint terminal pad C25; Pulp joint B17 is communicated with cavity between the gas drainage under suction pipe B16 through the inclined tube in the joint terminal pad C25 and sleeve pipe B15; Filling adaptor B12 is communicated with cavity between the gas drainage under suction pipe B16 through the inclined tube in the joint terminal pad B11 and sleeve pipe B15, is provided with easing valve A7 on pulp joint A6 and the pulp joint B17, is disposed with rubber cushion 22, safety plate 24, retainer ring 23 from the inside to surface between easing valve A7 and the pulp joint A6; Pulp joint B17 is connected with filling adaptor A4, and the end of gas drainage under suction pipe A1 is connected with the end of gas drainage under suction pipe B16.
Draw out methane and grouting hole packer method for sealing, an end of hole packer A being gone up gas drainage under suction pipe A1 inserts in the coal bed drilling, and the other end is connected with gas drainage under suction pipe B16; Pulp joint B17 on the gas drainage under suction pipe B16 is connected with filling adaptor A4, and at first from filling adaptor B12 slip casting, slurry gets in the cavity between sleeve pipe B15 and the gas drainage under suction pipe B16; In slurry outlet B19 flows out the space that gets between rubber swelling pipe B14 and the sleeve pipe B15, through pressure rubber swelling sebific duct B14 is expanded, when pressure increases to a certain degree; Easing valve B18 is opened, and continues slip casting, and slurry gets in the cavity between gas drainage under suction pipe A1 and the sleeve A 8 through pulp joint B17, tube connector B21, filling adaptor A4; Come out to get in the space between rubber swelling pipe A3 and the sleeve A 8 through slurry outlet A10 then; A3 expands with the rubber swelling sebific duct, and when pressure acquired a certain degree, easing valve A7 was opened; Continue to inject slurry; Slurry stream flows out from pulp joint A6 through pulp joint B17, tube connector B21, filling adaptor A4 at last, and the slurry of outflow fills up coal bed drilling, the slurry rapid solidification; With the slit shutoff in the coal seam, gas extraction just can not produce and leak and obtain higher extraction efficient so again.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and scope are limited; Under the prerequisite that does not break away from design concept of the present invention, common engineers and technicians make technical scheme of the present invention in this area various modification and improvement all should fall into protection scope of the present invention; The technology contents that the present invention asks for protection all is documented in claims.
Claims (2)
1. draw out methane and the grouting hole packer; Comprise gas drainage under suction pipe A (1), withhold locking jacket A (2), rubber swelling sebific duct A (3), filling adaptor A (4), joint terminal pad A (5), pulp joint A (6), easing valve A (7), sleeve A (8), annular groove (9), slurry outlet A (10), joint terminal pad B (11), filling adaptor B (12), withhold locking jacket B (13), rubber swelling sebific duct B (14), sleeve pipe B (15), gas drainage under suction pipe B (16), pulp joint B (17), easing valve B (18), slurry outlet B (19), tube connector A (20), tube connector B (21), rubber cushion (22), retainer ring (23), safety plate (24), joint terminal pad C (25); It is characterized in that gas drainage under suction pipe A (1) periphery is provided with sleeve A (8); There is cavity between gas drainage under suction pipe A (1) and the sleeve A (8); Sleeve A (8) is provided with annular groove (9); Sleeve A (8) in the annular groove (9) is provided with slurry outlet A (10); Annular groove (9) on sleeve A (8) locates also to be provided with annular gum cover; Sleeve A (8) periphery is provided with rubber swelling sebific duct A (3); There is the gap between sleeve A (8) and the rubber swelling sebific duct A (3); The two ends of rubber swelling sebific duct A (3) are fixed together through withholding locking jacket A (2) and sleeve A (8), are provided with joint terminal pad A (5) on the right side of the end rubber swelling sebific duct A (3) of gas drainage under suction pipe A (1), and the outer end of joint terminal pad A (5) is provided with filling adaptor A (4) and pulp joint A (6); Be provided with inclined tube in the joint terminal pad A (5); Filling adaptor A (4) is communicated with cavity between the gas drainage under suction pipe A (1) through the inclined tube in the joint terminal pad A (5) and sleeve A (8), and pulp joint A (6) also passes through the interior inclined tube of joint terminal pad A (5) and sleeve A (8) and is communicated with cavity between the gas drainage under suction pipe A (1), and gas drainage under suction pipe B (16) periphery is provided with sleeve pipe B (15); There is cavity between sleeve pipe B (15) and the gas drainage under suction pipe B (16); Sleeve pipe B (15) is provided with annular groove, and the annular groove place on sleeve pipe B (15) is provided with annular gum cover, is provided with slurry outlet B (19) in the annular groove on sleeve pipe B (15); The both sides that gas drainage under suction pipe B (16) goes up rubber swelling sebific duct B (14) are respectively arranged with joint terminal pad B (11) and joint terminal pad C (25); Be provided with inclined tube in joint terminal pad B (11) and the joint terminal pad C (25), pulp joint B (17) is communicated with cavity between the gas drainage under suction pipe B (16) through the inclined tube in the joint terminal pad C (25) and sleeve pipe B (15), and filling adaptor B (12) passes through the interior inclined tube of joint terminal pad B (11) and sleeve pipe B (15) and is communicated with cavity between the gas drainage under suction pipe B (16); Be provided with easing valve A (7) on pulp joint A (6) and the pulp joint B (17); Be disposed with rubber cushion (22), safety plate (24), retainer ring (23) between easing valve A (7) and the pulp joint A (6) from the inside to surface, pulp joint B (17) is connected with filling adaptor A (4), and the end of gas drainage under suction pipe A (1) is connected with the end of gas drainage under suction pipe B (16).
2. draw out methane and the method for sealing of grouting hole packer, it is characterized in that an end of hole packer A being gone up gas drainage under suction pipe A (1) inserts in the coal bed drilling, the other end is connected with gas drainage under suction pipe B (16); Pulp joint B (17) on the gas drainage under suction pipe B (16) is connected with filling adaptor A (4), and at first from filling adaptor B (12) slip casting, slurry gets in the cavity between sleeve pipe B (15) and the gas drainage under suction pipe B (16); In slurry outlet B (19) flows out the space that gets between rubber swelling pipe B (14) and the sleeve pipe B (15), through pressure rubber swelling sebific duct B (14) is expanded, when pressure increases to a certain degree; Easing valve B (18) is opened; Continue slip casting, slurry gets in the cavity between gas drainage under suction pipe A (1) and the sleeve A (8) through pulp joint B (17), tube connector B (21), filling adaptor A (4), passes through slurry outlet A (10) then and comes out to get in the space between rubber swelling pipe A (3) and the sleeve A (8); Rubber swelling sebific duct A (3) is expanded; When pressure acquired a certain degree, easing valve A (7) was opened, and continued to inject slurry; Slurry stream flows out from pulp joint A (6) through pulp joint B (17), tube connector B (21), filling adaptor A (4) at last; The slurry that flows out fills up coal bed drilling, and the slurry rapid solidification is with the slit shutoff in the coal seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277438.5A CN102767389B (en) | 2012-08-02 | 2012-08-02 | Hole packer for drawing out gas and injecting slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277438.5A CN102767389B (en) | 2012-08-02 | 2012-08-02 | Hole packer for drawing out gas and injecting slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102767389A true CN102767389A (en) | 2012-11-07 |
| CN102767389B CN102767389B (en) | 2014-10-08 |
Family
ID=47094929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210277438.5A Active CN102767389B (en) | 2012-08-02 | 2012-08-02 | Hole packer for drawing out gas and injecting slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767389B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966368A (en) * | 2012-11-24 | 2013-03-13 | 周春雷 | Hole packer for coal seam crushing |
| CN102979478A (en) * | 2012-12-05 | 2013-03-20 | 山东大学 | Water stopping device for water inrush borehole drilling |
| CN103850697A (en) * | 2014-03-18 | 2014-06-11 | 周春雷 | Hole packer for drawing out methane and grouting |
| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN107939333A (en) * | 2018-01-10 | 2018-04-20 | 河南理工大学 | Multistage pressure-bearing type osmosis type method for sealing and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7819191B2 (en) * | 2006-03-28 | 2010-10-26 | Schlumberger Technology Corporation | Method of fracturing a coalbed gas reservoir |
| CN201826807U (en) * | 2010-10-29 | 2011-05-11 | 北京中矿天安科技发展有限公司 | Gas drainage hole sealing device |
| CN201924876U (en) * | 2010-10-23 | 2011-08-10 | 李至芳 | Novel mine-used slurry injection hole sealing device |
| CN202023530U (en) * | 2011-04-01 | 2011-11-02 | 贵州省矿山安全科学研究院 | Step-by-step expansion fast hole packer for coal mine gas extraction |
| CN202358437U (en) * | 2011-12-02 | 2012-08-01 | 河北同成矿业科技有限公司 | Hole sealing bag for gas drainage hole |
| CN202866867U (en) * | 2012-08-05 | 2013-04-10 | 周春雷 | Hole packer for drawing out gas and grouting |
-
2012
- 2012-08-02 CN CN201210277438.5A patent/CN102767389B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7819191B2 (en) * | 2006-03-28 | 2010-10-26 | Schlumberger Technology Corporation | Method of fracturing a coalbed gas reservoir |
| CN201924876U (en) * | 2010-10-23 | 2011-08-10 | 李至芳 | Novel mine-used slurry injection hole sealing device |
| CN201826807U (en) * | 2010-10-29 | 2011-05-11 | 北京中矿天安科技发展有限公司 | Gas drainage hole sealing device |
| CN202023530U (en) * | 2011-04-01 | 2011-11-02 | 贵州省矿山安全科学研究院 | Step-by-step expansion fast hole packer for coal mine gas extraction |
| CN202358437U (en) * | 2011-12-02 | 2012-08-01 | 河北同成矿业科技有限公司 | Hole sealing bag for gas drainage hole |
| CN202866867U (en) * | 2012-08-05 | 2013-04-10 | 周春雷 | Hole packer for drawing out gas and grouting |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966368A (en) * | 2012-11-24 | 2013-03-13 | 周春雷 | Hole packer for coal seam crushing |
| CN102979478A (en) * | 2012-12-05 | 2013-03-20 | 山东大学 | Water stopping device for water inrush borehole drilling |
| CN103850697A (en) * | 2014-03-18 | 2014-06-11 | 周春雷 | Hole packer for drawing out methane and grouting |
| CN103850697B (en) * | 2014-03-18 | 2015-03-11 | 周春雷 | Hole packer for drawing out methane and grouting |
| CN105545250A (en) * | 2016-01-21 | 2016-05-04 | 淮南久辉工贸有限责任公司 | Deep sealing type hole sealing device and hole sealing method |
| CN107939333A (en) * | 2018-01-10 | 2018-04-20 | 河南理工大学 | Multistage pressure-bearing type osmosis type method for sealing and device |
| WO2019137073A1 (en) * | 2018-01-10 | 2019-07-18 | 河南理工大学 | Multi-stage pressure bearing permeable hole sealing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102767389B (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103452525B (en) | Gas extraction fixed occluder and method of use thereof | |
| CN102767389B (en) | Hole packer for drawing out gas and injecting slurry | |
| CN105715230B (en) | Ooze paddle list pouch injection hole sealing device and its method for sealing in middle part | |
| CN103206190B (en) | Fast aeration slip-casting hole-sealing method | |
| CN102926700B (en) | Grouting bag type hole packer with multi-section seal | |
| CN103541663B (en) | Special three hole pipe and the usings method thereof of stopper | |
| CN204344065U (en) | The outer fluid filling hole sealing device of a kind of pipe | |
| CN203742542U (en) | Non-pipe grouting hole sealing device | |
| CN103758486A (en) | Pipeless grouting hole sealing device | |
| CN209670939U (en) | A kind of coal mine gas extraction drill hole long range multi-stage cementing hole packer | |
| CN202866867U (en) | Hole packer for drawing out gas and grouting | |
| CN203626720U (en) | Anti-spray orifice multi-section bag hole packer | |
| CN203515458U (en) | Double-hole pipe slurry filling hole sealing device | |
| CN106437610B (en) | A kind of gas pumping secondary hole sealing method based on swelling agent | |
| CN107989648A (en) | A kind of coal mine gas drainage samples pipe connection | |
| CN208619154U (en) | A gas drilling and sealing equipment based on the combination of positive and negative pressure sealing | |
| CN203285386U (en) | Rapid inflation grouting hole sealing device | |
| CN212774391U (en) | Gas drainage device in coal mine tunnel and grouting part thereof | |
| CN102966329B (en) | Drainage borehole plugging device and method | |
| CN102966371B (en) | Drainage borehole plugging device and method | |
| CN202220581U (en) | Plugging device for extraction drill hole | |
| CN212337212U (en) | Device for coal mine tunnel pressurized drilling | |
| CN106639962B (en) | Secondary hole sealing pressure measuring device based on expanding agent | |
| CN203097814U (en) | Fixed type air bag hole packer | |
| CN112539040A (en) | Novel grouting hole sealing device and process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160804 Address after: 053700 Hengshui City Economic Development Zone West Hebei Fucheng County Patentee after: Hebei Bangtian Mine Safety Equipment Co., Ltd. Address before: 053500 Hengshui province Hebei City West Development Zone Jingxian County Dragon King Lu Nan Chang Zhuang Cun Bei Hengshui Borui Alwayseal Technology Ltd Patentee before: Zhou Chunlei |