CN105507940A - Slotting, plugging and fracturing integrated type intensified marsh gas extraction device and method - Google Patents
Slotting, plugging and fracturing integrated type intensified marsh gas extraction device and method Download PDFInfo
- Publication number
- CN105507940A CN105507940A CN201610016804.XA CN201610016804A CN105507940A CN 105507940 A CN105507940 A CN 105507940A CN 201610016804 A CN201610016804 A CN 201610016804A CN 105507940 A CN105507940 A CN 105507940A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- flexible pouch
- grouting
- fracturing
- 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
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000605 extraction Methods 0.000 title claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 6
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims description 30
- 238000005728 strengthening Methods 0.000 claims description 20
- 230000010354 integration Effects 0.000 claims description 16
- 238000007569 slipcasting Methods 0.000 claims description 15
- 239000011440 grout Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007796 conventional method Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/261—Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention provides a slotting, plugging and fracturing integrated type intensified marsh gas extraction device and method. The device comprises a grouting cylinder which is mutually connected by threads, wherein a fracturing pipe with a plurality of small holes in the front end is arranged at the central position in the cylinder; the fracturing pipe penetrates through the front end of a front cover of the cylinder for 3m-4m, so that the cylinder passes through all the small holes; the rear end of the fracturing pipe is connected with a fracturing pump through a fracturing opening formed in the lower surface of the cylinder; the distance from the fracturing opening to the rear end face of the cylinder is 0.5m-1m; a flexible bag I is welded at the front end of the cylinder, and a flexible bag II is welded at the part which is 1.5m-3m far away from the rear end surface of the cylinder; a plurality of large holes are formed in the surface of the cylinder in the flexible bag II and the flexible bag I; a grouting pipe is welded at the upper part in the cylinder; and a grouting opening and a grouting opening are formed in the surface of the cylinder. A conventional drilled hole and a slotting drilled hole are formed by conventional hole drilling and hydraulic slotting; hole plugging slurry is filled into the flexible bag I and the flexible bag II through the large holes, and the conventional drilled hole and the slotting drilled hole are respectively plugged respectively; slurry is injected into a coal seam drilled hole through a slurry outlet in the surface of the cylinder; and after the slurry is condensed, hydraulic fracturing is carried out, so that effective sealing of a slotting, plugging and fracturing integrated type gas extraction drilled hole is guaranteed, and slotting, plugging and fracturing integrated type intensified marsh gas extraction is realized.
Description
Technical field
The present invention relates to one and cut envelope pressure integration strengthening gas pumping device and method, belong to underground coal mine regional gas control technical field, be particularly useful for carrying out the operation of strengthening gas pumping in the mash gas pumping drilling in soft easy collapse hole and difficult sealing of hole coal seam.
Background technology
China's high gassy and low permeability coal seam bearing features is micropore property, low-permeability and high adsorption, cause in recovery process often along with a large amount of Gas, particularly along with the high-efficiency intensifying of coal production and the increase of mining depth, gas emission is increasing, and the threat of gas explosion and Gas Outburst danger is more and more serious.Therefore, national control of coalmine gas policy determination highly gassy mine first must be taken out and adopt afterwards, and gas pumping is the measure of effecting a permanent cure.Along with carrying out in a deep going way of coal-bed gas Controlling research work, a lot of scholar has reached certain common recognition, proposing waterpower measure is the developing direction of following coal seam gas control particularly in deep fractures gas control, namely promote that the release in coal seam is anti-reflection by waterpower measures such as fracturing, coal-bed flooding, hydraulic slotted liner technique, hydraulic flushing in hole, improve coal seam permeability, strengthening gas extraction in advance.In many waterpower technology, comparatively early, application relative maturity, at home and abroad a lot of mine application achieves good effect in hydraulic fracturing technology development.But, carry out in various waterpower treatment process in the mash gas pumping drilling in some soft easy collapse hole coal seams and difficult sealing of hole coal seam, because sealing of hole is not tight, cause pressure break failure, waste time and energy, do not reach the ideal effect of gas pumping, therefore, be badly in need of wanting the measure of a kind of strengthening gas pumping, can either the high pressure resistant boring of effective sealing, the impact of boring inner high voltage can be born, the object of irrigation measure strengthening gas pumping can also be played simultaneously.
Summary of the invention
Technical problem: the object of the invention is to overcome the problems such as the high pressure resistant drilling and sealing existed in prior art is tight, gas pumping weak effect, provide a kind of envelope pressure integration of cutting simple to operate, that cost is low, effective to strengthen gas pumping method.
Technical scheme: envelope of cutting of the present invention presses integration strengthening gas pumping device, comprise and adopt the interconnective slip casting cylinder of screw thread, layout front end, cylinder interior center has the pressure break pipe of some apertures, pressure break pipe is through cylinder protecgulum front end 3 ~ 4m, make aperture entirely across cylinder, pressure break pipe rear end is connected with fracturing pump by the pressure break mouth of cylinder soffit, pressure break mouth is apart from cylinder rear end face 0.5 ~ 1m, cylinder front end has been welded flexible pouch one, distance cylinder rear end face 1.5 ~ 3m position has been welded flexible pouch two, drum surface in flexible pouch two and flexible pouch one has some macropores, upper weld in cylinder has Grouting Pipe, Grouting Pipe is connected with grouting pump by the grouting port of drum surface, Grouting Pipe passes through the grout outlet of drum surface to slip casting in coal bed drilling.
The length of described slip casting cylinder is 15 ~ 18m, and diameter is 90mm, and Grouting Pipe diameter is 16mm, and pressure break pipe diameter is 25mm.
Described grouting port and pressure break mouth are arranged on the drum surface outside flexible pouch two, and grout outlet is arranged on the drum surface between flexible pouch two and flexible pouch one.
The length of described flexible pouch two is 0.5 ~ 1m, and diameter is 110mm, and flexible pouch one length is 1 ~ 2m, and diameter is 150mm.
Envelope of cutting of the present invention presses integration strengthening gas pumping method, comprises the following steps:
A. adopt conventional method to hole to the routine that rock stratum inner part drilling diameter is 100mm perpendicular to wall, conventional drillable length is 15 ~ 18m;
B. adopt conventional hydraulic slotting technique, continue to drill at conventional foot of hole, meanwhile, by waterpower driven rotary slot, cut out the slot boring that diameter is 120 ~ 140mm, slot drillable length is 80 ~ 100m;
C. connect cylinder and pressure break pipe successively, cylinder is sent into conventional bore inner, make flexible pouch one just pass conventional drill hole in slot boring;
D. connect slurry can and grouting pump, utilize high-pressure rubber pipe to connect grouting pump and slip casting cylinder successively, grouting pump and grouting port, water tank and fracturing pump, fracturing pump and pressure break mouth;
E. open grouting pump, in slip casting cylinder, inject sealing of hole slurries, sealing of hole slurries are full of flexible pouch one and flexible pouch two by macropore, and flexible pouch one and flexible pouch two expand, and shutoff is respectively conventional holes and slot boring;
F., when the pressure meter display grouting pressure of grouting pump stops rising, Grouting Pipe is utilized to inject sealing of hole slurries in the conventional borehole space between flexible pouch one and flexible pouch two;
G., after sealing of hole slurries all solidify, open fracturing pump and carry out fracturing 30min;
H. after pressure break terminates, connection pressure break pipe and coal mine gas extraction pipeline carry out gas pumping, complete and cut envelope pressure integration strengthening gas pumping process.
Beneficial effect: owing to have employed technique scheme, carry out in various waterpower treatment process in the mash gas pumping drilling in some soft easy collapse hole coal seams and difficult sealing of hole coal seam, can either the high pressure resistant boring of effective sealing, the impact of boring inner high voltage can be born, the object of irrigation measure strengthening gas pumping can also be played simultaneously.Achieve the effective sealing of hole of the high pressure resistant boring of weak seam, meet the needs of underground coal mine for strengthening gas pumping.It is simple to operate, cost is low, effective, workload is little, has practicality widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A generalized section of Fig. 1.
Fig. 3 is the B-B generalized section of Fig. 1.
Fig. 4 is cylindrical structure connection diagram.
Fig. 5 is pressure break tubular structure connection diagram.
Fig. 6 is that envelope of cutting of the present invention presses integration strengthening gas pumping method embodiment schematic diagram.
In figure: 1. grouting port, 2. Grouting Pipe, 3. flexible pouch two, 4. grout outlet, 5. screw thread, 6. flexible pouch one, 7. pressure break mouth, 8. macropore, 9. pressure break pipe, 10. cylinder, 11. cylinder protecgulums, 12. apertures, 13. rock stratum, 14. coal seams, 15. slurry cans, 16. grouting pumps, 17. fracturing pumps, 18-1. valve, 18-2. valve, 18-3. valve, 19. common borings, 20. cut envelope boring, 21. high-pressure rubber pipes, 22. sealing of hole slurries, 23. water tanks, 24. pressure meters.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Shown in Fig. 1, one of the present invention cuts envelope pressure integration strengthening gas pumping device, comprise and adopt the interconnective slip casting cylinder 10 of screw thread 5, cylinder 10 inner hub location arranges that front end has the pressure break pipe 9 of some apertures 12, pressure break pipe 9 is through cylinder protecgulum 11 front end 3 ~ 4m, make aperture 12 entirely across cylinder 10, pressure break pipe 9 rear end is connected with fracturing pump by the pressure break mouth 7 of cylinder 10 soffit, pressure break mouth 7 is apart from cylinder 10 rear end face 0.5 ~ 1m, cylinder 10 front end has been welded flexible pouch 1, distance cylinder 10 rear end face 1.5 ~ 3m position has been welded flexible pouch 23, cylinder 10 surface in flexible pouch 23 and flexible pouch 1 has some macropores 8, upper weld in cylinder 10 has Grouting Pipe 2, Grouting Pipe 2 is connected with grouting pump by the grouting port 1 on cylinder 10 surface, Grouting Pipe 2 passes through the grout outlet 4 on cylinder 10 surface to slip casting in coal bed drilling.The length of described slip casting cylinder 10 is 15 ~ 18m, and diameter is 90mm, and Grouting Pipe 2 diameter is 16mm, and pressure break pipe 9 diameter is 25mm.Described grouting port 1 and pressure break mouth 7 are arranged in the outside cylindrical 10 of flexible pouch 23 on the surface, and grout outlet 4 is arranged in cylinder 10 between flexible pouch 23 and flexible pouch 1 on the surface.The length of described flexible pouch 23 is 0.5 ~ 1m, and diameter is 110mm, and flexible pouch 1 length is 1 ~ 2m, and diameter is 150mm.
Envelope of cutting of the present invention presses integration strengthening gas pumping method: first, and employing conventional method is the routine boring 19 of 100mm to rock stratum 13 inner part drilling diameter perpendicular to wall, and routine boring 19 length are 15 ~ 18m; Adopt conventional hydraulic slotting technique, continue to drill bottom routine boring 19, meanwhile, by waterpower driven rotary slot, cut out the slot boring 20 that diameter is 120 ~ 140mm, slot 20 length of holing are 80 ~ 100m; Connect cylinder 10 and pressure break pipe 9 successively, cylinder 10 is sent into conventional boring 19 inner, make flexible pouch 1 just be in slot boring 20 through conventional boring 19; Connect slurry can 15 and grouting pump 16, utilize high-pressure rubber pipe 21 to connect grouting pump 16 and slip casting cylinder 10 successively, grouting pump 16 and grouting port 1, water tank 23 and fracturing pump 17, fracturing pump 17 and pressure break mouth 7; Open grouting pump 16, in slip casting cylinder 10, inject sealing of hole slurries 22, sealing of hole slurries 22 are full of flexible pouch 1 and flexible pouch 23 by macropore 8, and flexible pouch 1 and flexible pouch 23 expansion be shutoff routine boring 19 and slot boring 20 respectively; When the pressure meter 24 of grouting pump 16 show grouting pressure stop rising time, utilize Grouting Pipe 2 to hole in 19 spaces to the routine between flexible pouch 1 and flexible pouch 23 and inject sealing of hole slurries 22; After sealing of hole slurries 22 all solidify, open fracturing pump 17 and carry out fracturing 30min; After pressure break terminates, connection pressure break pipe (9) and coal mine gas extraction pipeline carry out gas pumping, complete and cut envelope pressure integration strengthening gas pumping process.
Claims (5)
1. one kind is cut envelope pressure integration strengthening gas pumping device, it is characterized in that: comprise and adopt screw thread (5) interconnective slip casting cylinder (10), cylinder (10) inner hub location arranges that front end has the pressure break pipe (9) of some apertures (12), pressure break pipe (9) is through cylinder protecgulum (11) front end 3 ~ 4m, make aperture (12) entirely across cylinder (10), pressure break pipe (9) rear end is connected with fracturing pump by the pressure break mouth (7) of cylinder (10) soffit, pressure break mouth (7) is apart from cylinder (10) rear end face 0.5 ~ 1m, cylinder (10) front end has been welded flexible pouch one (6), distance cylinder (10) rear end face 1.5 ~ 3m position has been welded flexible pouch two (3), cylinder (10) surface in flexible pouch two (3) and flexible pouch one (6) has some macropores (8), upper weld in cylinder (10) has Grouting Pipe (2), Grouting Pipe (2) is connected with grouting pump by the grouting port (1) on cylinder (10) surface, Grouting Pipe (2) by cylinder (10) surface grout outlet (4) to slip casting in coal bed drilling.
2. cut envelope pressure integration strengthening gas pumping device as claimed in claim 1, it is characterized in that: the length of described slip casting cylinder (10) is 15 ~ 18m, diameter is 90mm, and Grouting Pipe (2) diameter is 16mm, and pressure break pipe (9) diameter is 25mm.
3. cut envelope pressure integration strengthening gas pumping device as claimed in claim 1, it is characterized in that: described grouting port (1) and pressure break mouth (7) are arranged in the outside cylindrical (10) of flexible pouch two (3) on the surface, grout outlet (4) is arranged in cylinder (10) between flexible pouch two (3) and flexible pouch one (6) on the surface.
4. cut envelope pressure integration strengthening gas pumping device as claimed in claim 1, it is characterized in that: the length of described flexible pouch two (3) is 0.5 ~ 1m, diameter is 110mm, and flexible pouch one (6) length is 1 ~ 2m, and diameter is 150mm.
5. as described in the claims, a gas pumping method is strengthened in the envelope pressure integration of cutting of device, it is characterized in that, comprises the following steps:
A. adopt conventional method to hole (19) to the routine that rock stratum (13) inner part drilling diameter is 100mm perpendicular to wall, conventional boring (19) length is 15 ~ 18m;
B. conventional hydraulic slotting technique is adopted, continue to drill, meanwhile, by waterpower driven rotary slot in routine boring (19) bottom, cut out slot boring (20) that diameter is 120 ~ 140mm, slot boring (20) length is 80 ~ 100m;
C. cylinder (10) and pressure break pipe (9) is connected successively, cylinder (10) is sent into conventional boring (19) inner, make flexible pouch one (6) just be in slot boring (20) through conventional boring (19);
D. slurry can (15) and grouting pump (16) is connected, high-pressure rubber pipe (21) is utilized to connect grouting pump (16) and slip casting cylinder (10) successively, grouting pump (16) and grouting port (1), water tank (23) and fracturing pump (17), fracturing pump (17) and pressure break mouth (7);
E. grouting pump (16) is opened, open valve (18-1), sealing of hole slurries (22) is injected in slip casting cylinder (10), sealing of hole slurries (22) are full of flexible pouch one (6) and flexible pouch two (3) by macropore (8), and flexible pouch one (6) and flexible pouch two (3) expand, and shutoff is respectively conventional holes (19) and slot boring (20);
F. when pressure meter (24) the display grouting pressure of grouting pump (16) stops rising, valve-off (18-1), open valve (18-2), utilize Grouting Pipe (2) to inject sealing of hole slurries (22) in routine boring (19) space between flexible pouch one (6) and flexible pouch two (3);
G., after sealing of hole slurries (22) all solidify, open fracturing pump (17) and carry out fracturing 30min;
H. after pressure break terminates, connection pressure break pipe (9) and coal mine gas extraction pipeline carry out gas pumping, complete and cut envelope pressure integration strengthening gas pumping process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610016804.XA CN105507940B (en) | 2016-01-11 | 2016-01-11 | One kind cuts envelope pressure integration and strengthens gas pumping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610016804.XA CN105507940B (en) | 2016-01-11 | 2016-01-11 | One kind cuts envelope pressure integration and strengthens gas pumping device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105507940A true CN105507940A (en) | 2016-04-20 |
| CN105507940B CN105507940B (en) | 2018-01-30 |
Family
ID=55716202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610016804.XA Active CN105507940B (en) | 2016-01-11 | 2016-01-11 | One kind cuts envelope pressure integration and strengthens gas pumping device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105507940B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499360A (en) * | 2016-12-27 | 2017-03-15 | 中煤科工集团重庆研究院有限公司 | Underground coal mine hydraulic fracturing drilling and sealing device |
| CN106930724A (en) * | 2017-04-17 | 2017-07-07 | 山东科技大学 | One kind is rich in water borehole sealing and gas pumping integral method |
| CN107905762A (en) * | 2017-10-11 | 2018-04-13 | 山东科技大学 | A kind of solid powder band pressure grouting dynamic seal hole method |
| CN107905760A (en) * | 2017-11-06 | 2018-04-13 | 辽宁工程技术大学 | From anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break and control method |
| CN108756883A (en) * | 2018-06-11 | 2018-11-06 | 陕西煤业化工技术研究院有限责任公司 | A kind of coal mine tight roof slip casting fracturing process and system |
| CN109915065A (en) * | 2019-04-18 | 2019-06-21 | 重庆大学 | The portable pure pressure packer hole packer of bushing type |
| CN110080703A (en) * | 2019-06-15 | 2019-08-02 | 王海峰 | A kind of pulp water separation drilling method for aperture erosion control |
| WO2019196503A1 (en) * | 2018-04-12 | 2019-10-17 | 山东科技大学 | Drilling machine power-based downhole rapid slotting directional hydraulic fracturing system and method |
| CN112228013A (en) * | 2020-09-14 | 2021-01-15 | 山东科技大学 | Device and method for sealing holes with pressure in full-length sieve tube protecting hole in soft coal layer |
| CN112681299A (en) * | 2020-12-22 | 2021-04-20 | 山东农业大学 | Existing pile foundation grouting reinforcement hole sealing device and using method |
| CN113236342A (en) * | 2021-06-02 | 2021-08-10 | 山东科技大学 | Gas extraction device and method capable of repeatedly and circularly utilizing multi-angle bag |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628352A (en) * | 2012-04-23 | 2012-08-08 | 中国矿业大学 | Multi-section fixed point hydraulic fracturing method |
| CN103452525A (en) * | 2013-09-06 | 2013-12-18 | 河南理工大学 | Gas pumping fixing occluder and use method thereof |
| CN203430473U (en) * | 2013-09-05 | 2014-02-12 | 西安科技大学 | Underground hydraulic fracturing drill hole sealing device of coal mine |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
| CN203626880U (en) * | 2013-11-20 | 2014-06-04 | 西安大昱光电科技有限公司 | Plugging device for gas extraction |
| CN204060615U (en) * | 2014-09-19 | 2014-12-31 | 西安科技大学 | Mine fracturing drilling and sealing device |
| CN104329114A (en) * | 2014-09-16 | 2015-02-04 | 太原理工大学 | Underground drilling intermittent gas extraction method |
| CN104343415A (en) * | 2014-10-20 | 2015-02-11 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilling hole injection expanding type bag hole sealing device |
-
2016
- 2016-01-11 CN CN201610016804.XA patent/CN105507940B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628352A (en) * | 2012-04-23 | 2012-08-08 | 中国矿业大学 | Multi-section fixed point hydraulic fracturing method |
| CN203430473U (en) * | 2013-09-05 | 2014-02-12 | 西安科技大学 | Underground hydraulic fracturing drill hole sealing device of coal mine |
| CN103452525A (en) * | 2013-09-06 | 2013-12-18 | 河南理工大学 | Gas pumping fixing occluder and use method thereof |
| CN203626880U (en) * | 2013-11-20 | 2014-06-04 | 西安大昱光电科技有限公司 | Plugging device for gas extraction |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
| CN104329114A (en) * | 2014-09-16 | 2015-02-04 | 太原理工大学 | Underground drilling intermittent gas extraction method |
| CN204060615U (en) * | 2014-09-19 | 2014-12-31 | 西安科技大学 | Mine fracturing drilling and sealing device |
| CN104343415A (en) * | 2014-10-20 | 2015-02-11 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilling hole injection expanding type bag hole sealing device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499360A (en) * | 2016-12-27 | 2017-03-15 | 中煤科工集团重庆研究院有限公司 | Underground coal mine hydraulic fracturing drilling and sealing device |
| CN106930724A (en) * | 2017-04-17 | 2017-07-07 | 山东科技大学 | One kind is rich in water borehole sealing and gas pumping integral method |
| CN106930724B (en) * | 2017-04-17 | 2019-03-15 | 山东科技大学 | One kind being rich in water borehole sealing and gas drainage integral method |
| CN107905762A (en) * | 2017-10-11 | 2018-04-13 | 山东科技大学 | A kind of solid powder band pressure grouting dynamic seal hole method |
| CN107905760A (en) * | 2017-11-06 | 2018-04-13 | 辽宁工程技术大学 | From anchoring, self-sealing, the integrated apparatus of high pressure water injection pressure break and control method |
| CN107905760B (en) * | 2017-11-06 | 2023-11-14 | 辽宁工程技术大学 | Self-anchoring, self-sealing and high-pressure water injection fracturing integrated device and control method |
| WO2019196503A1 (en) * | 2018-04-12 | 2019-10-17 | 山东科技大学 | Drilling machine power-based downhole rapid slotting directional hydraulic fracturing system and method |
| CN108756883A (en) * | 2018-06-11 | 2018-11-06 | 陕西煤业化工技术研究院有限责任公司 | A kind of coal mine tight roof slip casting fracturing process and system |
| CN109915065A (en) * | 2019-04-18 | 2019-06-21 | 重庆大学 | The portable pure pressure packer hole packer of bushing type |
| CN110080703A (en) * | 2019-06-15 | 2019-08-02 | 王海峰 | A kind of pulp water separation drilling method for aperture erosion control |
| CN112228013A (en) * | 2020-09-14 | 2021-01-15 | 山东科技大学 | Device and method for sealing holes with pressure in full-length sieve tube protecting hole in soft coal layer |
| CN112228013B (en) * | 2020-09-14 | 2021-10-15 | 山东科技大学 | Device and method for sealing holes with pressure in full-length sieve tube protecting hole in soft coal layer |
| CN112681299A (en) * | 2020-12-22 | 2021-04-20 | 山东农业大学 | Existing pile foundation grouting reinforcement hole sealing device and using method |
| CN113236342A (en) * | 2021-06-02 | 2021-08-10 | 山东科技大学 | Gas extraction device and method capable of repeatedly and circularly utilizing multi-angle bag |
| CN113236342B (en) * | 2021-06-02 | 2022-08-09 | 山东科技大学 | Gas extraction device and method capable of repeatedly and circularly utilizing multi-angle bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105507940B (en) | 2018-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105507940A (en) | Slotting, plugging and fracturing integrated type intensified marsh gas extraction device and method | |
| CN105332684B (en) | A kind of water under high pressure is quick-fried and CO2The coal bed gas displacement extraction technique that pressure break is combined | |
| AU2014336858B2 (en) | Method for enhanced fuel gas extraction by coal mine underground gas-liquid dual-phase alternating phase-driven fracturing of coal body | |
| CN103696800B (en) | A kind of brill cuts pressure and takes out method | |
| CN101294500B (en) | Heavy pressure slip-casting hole-sealing method for large-diameter extraction borehole | |
| CN205063929U (en) | Colliery is sealed in pit and is pressed integration segmentation hydraulic fracturing device | |
| CN103306657B (en) | A kind of coal seam cutting release is anti-reflection and slot holding device and method | |
| CN202250166U (en) | Secondary high-pressure grouting hole packer | |
| CN204984343U (en) | Split combined type bag hole sealing device | |
| CN102996159A (en) | Multiphase medium plugging device and method for gas extraction drill hole | |
| CN102937011A (en) | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group | |
| CN105370256A (en) | Method for increasing wetting radius of high-pressure water injection of low-air-permeability coal seams through sectioned pre-splitting | |
| CN102587958A (en) | Method for mining coal seam gas | |
| CN203531877U (en) | Underground coal mine fracturing connecting device | |
| CN109578058B (en) | Method for improving gas extraction concentration of extraction borehole through auxiliary drilling | |
| CN208456572U (en) | Packaged type hydraulic fracturing and injection hole sealing integrated apparatus | |
| CN204960882U (en) | Underground hydraulic fracturing drill hole sealing device of coal mine | |
| CN101319604B (en) | Inverse squeezing tie-back sealing plug | |
| CN105317397A (en) | Double cloth bags type grouting sealing set and method | |
| CN108071376B (en) | Injection and production string in coal-bed gas well | |
| CN201196059Y (en) | Oil well cementing system | |
| CN201696048U (en) | Coal seam gob fracture zone water-injection observation system | |
| CN105673064B (en) | A kind of high pressure resistant drilled hole sealing device and method | |
| CN202851052U (en) | A delay self-expanding capsule and paste body combination hole sealing device for drilled holes of gas extraction | |
| CN203476278U (en) | Grouting type hole sealing and automatic water discharging device for underground drilling gas extraction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |