CN109488250A - Hole sealing device and method can be recycled in a kind of coal bed gas extraction drilling mucus dynamic - Google Patents
Hole sealing device and method can be recycled in a kind of coal bed gas extraction drilling mucus dynamic Download PDFInfo
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- CN109488250A CN109488250A CN201811544149.0A CN201811544149A CN109488250A CN 109488250 A CN109488250 A CN 109488250A CN 201811544149 A CN201811544149 A CN 201811544149A CN 109488250 A CN109488250 A CN 109488250A
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- dynamic
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- 238000007789 sealing Methods 0.000 title claims abstract description 91
- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 239000003245 coal Substances 0.000 title claims abstract description 40
- 238000000605 extraction Methods 0.000 title claims abstract description 27
- 210000003097 mucus Anatomy 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002775 capsule Substances 0.000 claims abstract description 98
- 239000003292 glue Substances 0.000 claims abstract description 58
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 16
- 230000001012 protector Effects 0.000 claims description 9
- 239000000084 colloidal system Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000001802 infusion Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000009897 systematic effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 9
- 238000005086 pumping Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—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
- 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
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)
Abstract
The present invention relates to coals, gas production technical field, a kind of recyclable hole sealing device of coal bed gas extraction drilling mucus dynamic, for blocking the drilling orifice section in coal seam, the second end of 3 the second high-pressure hoses respectively with orifice expansion capsule, bore end expanded capsule and block section, the dynamic grouting system is connected by changeable with the first end of 3 second high-pressure hoses, and dynamic grouting system is made to block glue to orifice expansion capsule, bore end expanded capsule inside or block section injection;The orifice expansion capsule and bore end expanded capsule outer wall are elastic wall, orifice expansion capsule and bore end expanded capsule expand after injection blocks glue, and then the gap between drill hole inner wall and sealing of hole pipe outer wall is blocked, the gap between drill hole inner wall and sealing of hole pipe outer wall is filled after block section injection closure glue.In addition, the present invention also proposes that encapsulation method can be recycled in a kind of coal bed gas extraction drilling mucus dynamic.
Description
Technical field
The present invention relates to coals, gas production technical field, especially coal bed gas extraction borehole sealing technology.
Background technique
As superficial part present low gas Regional Coal resource is gradually exploited totally, pit mining coal mine will extend into coalfield high methane
Region, a large amount of Gas restrict safety in production during exploiting in order to prevent, and State Administration of Quality and Technical Supervision promulgates
The total coal of safety supervision fills (2011) No. 163 file " coal mine gas drainage temporary provisions up to standard " clear stipulaties this coal bed gas extractions and reaches
Target mandatory term.
The important technology hand that face gas is gushed out during highly gassy mine this coal bed gas extraction technique is exploitation reducig
Section, the principal element for restricting this coal bed gas extraction efficiency at this stage is coal bed drilling method for sealing and corollary apparatus, both at home and abroad
Polyurethane sealing of hole method and " a two stifled notes " method of pore sealing are mainly taken, sealing material is mainly cement mortar and polyurethane, cement
Mortar easily shrinks dry and cracked, and the sealing of hole time is longer;Polyurethane meets water and easily softens contraction, and poor permeability is difficult to penetrate into drilling
In the microfissure of periphery;These method for sealing exist after coal bed drilling sealing of hole extraction occur crack gas leakage can not secondary hole sealing remedy
The problem of and the sealing material in coal bed drilling and the irretrievable problem of drainage tube.
Summary of the invention
To solve the above problems, the present invention proposes that hole sealing device can be recycled in a kind of coal bed gas extraction drilling mucus dynamic,
The device can effectively block mash gas pumping drilling relaxation zone crack.In addition the present invention also proposes that a kind of coal bed gas extraction drilling is glutinous
Method for sealing can be recycled in state of surging.
To achieve the above object, the technical solution adopted by the present invention is that:
In first technical solution, the recyclable hole sealing device of a kind of coal bed gas extraction drilling mucus dynamic, for sealing
Drilling orifice section in chute blockage layer, including dynamic grouting system and static seal systems, wherein static seal systems include 3 the
Two high-pressure hoses, orifice expansion capsule, bore end expanded capsule and hole sealing tube, wherein the hole sealing tube is placed in the drilling,
The orifice expansion capsule and bore end expanded capsule interval set and are sleeved on outside hole sealing tube, and the bore end expanded capsule is close
Side is block section in hole, and the first end of 3 second high-pressure hoses is free end, the second of 3 the second high-pressure hoses
Respectively with orifice expansion capsule, bore end expanded capsule and block section, the dynamic grouting system passes through changeable and 3 at end
The first end of second high-pressure hose connects, and makes dynamic grouting system to orifice expansion capsule, bore end expanded capsule
The injection of internal or block section blocks glue;The orifice expansion capsule and bore end expanded capsule outer wall are elastic wall, and aperture is swollen
Swollen capsule and bore end expanded capsule expand after injection blocks glue, and then between blocking between drill hole inner wall and sealing of hole pipe outer wall
The gap after closure glue between filling drill hole inner wall and sealing of hole pipe outer wall is injected in gap, block section.
In first technical solution, preferably, the orifice expansion capsule and bore end expanded capsule are drilling
The both ends for opening up direction are equipped with head protector, protection cap of the head protector as orifice expansion capsule and bore end expanded capsule end,
And head protector is the elastic component with retractility.
In first technical solution, preferably, the dynamic grouting system include liquid storage container, into glue hose,
Pressurize glue-injecting pump and the first hose, described to be placed in liquid storage container into glue hose first segment, second end connection pressurization glue-injecting pump
Glue inlet, the gum outlet of the first end connection pressurization glue-injecting pump of first hose are described to close on pressurization glue-injecting pump into glue hose
Position be equipped with glue-feeder regulating valve, first hose and close on the position of pressurization glue-injecting pump and be equipped with gum outlet regulating valve.
In first technical solution, preferably, second high-pressure hose is equipped with for detecting the second high pressure
The pressure gauge component of colloid pressure in hose pipe.
In first technical solution, preferably, the pressure gauge component includes injecting glue shut-off valve, monitoring pressure gauge
Regulating valve, pressure gauge connector and pressure gauge, wherein injecting glue shut-off valve is arranged on intermediate hose tube body, and the pressure gauge passes through
Pressure gauge connector is connected between on hose, and pressure gauge connector is equipped with monitoring pressure gauge regulating valve.
In second technical solution, the recyclable method for sealing of a kind of coal bed gas extraction drilling mucus dynamic, using such as
Hole sealing device can be recycled in the drilling mucus dynamic of coal bed gas extraction described in first technical solution, includes the following steps,
Two intermediate hoses are connected to orifice expansion capsule, bore end expanded capsule respectively before step 1, sealing of hole, and will
Orifice expansion capsule, bore end expanded capsule are sleeved on hole sealing tube;
The orifice expansion capsule connected, bore end expanded capsule and hole sealing tube are sent into drilling and sealing section by step 2;
Step 3 will be placed on the bottom in liquid storage container into glue hose, fill viscolloid in liquid storage container, will be into glue
Hose is connected with pressurization glue-injecting pump;
Step 4, the glue-injecting pump that will pressurize in the first hose and intermediate hose by connecting;
Step 5 opens injecting glue shut-off valve and monitoring pressure gauge regulating valve, opens pressurization glue-injecting pump, by the glutinous of liquid storage container
Property colloid is implanted sequentially orifice expansion capsule, bore end expanded capsule and sealing section;
Step 6, after pressure gauge numerical value reaches certain numerical value, be first shut off injecting glue shut-off valve, then rapidly close pressurization
Glue-injecting pump, drilling and sealing are completed.
In second technical solution, preferably, after the completion of drilling and sealing, periodic observation pressure gauge data work as pressure
When power table numerical value is decreased obviously, step 3-step 6 is repeated, secondary fluid infusion is carried out.
Using the beneficial effects of the present invention are:
Dynamic grouting system is made of high-pressure hose, grouting pump, liquid storing barrel, the viscolloid that flyash is base-material.It is static
Sealing system is made of drainage tube, expansion plugging capsule, injecting glue valve, monitoring pressure gauge and connecting pipe hoop.Sealing of hole capsule difference
It is placed on the outside and inside of sealing section, sealing of hole capsule is by pipe collar and extraction piping connection, at the inlet of sealing of hole capsule outer end
Pressure gauge is installed, real-time monitoring sealing section and hole sealing glue intracapsular colloid pressure pass through high-pressure hose between sealing of hole capsule and connects
It connects.Present invention design is simple, structurally reasonable, it can be achieved that colloid infiltration coal seam gap and crack, real-time to the pressure in sealing section
Monitoring, timely fluid infusion effectively block drilling loosening and unload pressing ring, improve gas drainage efficiency.
Detailed description of the invention
Fig. 1 is that hole sealing device overall structure diagram can be recycled in coal bed gas extraction of the present invention drilling mucus dynamic.
Fig. 2 is that hole sealing device closure capsule structure schematic diagram can be recycled in coal bed gas extraction of the present invention drilling mucus dynamic.
Fig. 3 is that the signal of hole sealing device pressure gauge modular construction can be recycled in coal bed gas extraction of the present invention drilling mucus dynamic
Figure.
Appended drawing reference includes:
1- blocks glue, and 2- liquid storage container, 3- is into glue hose, 4- glue-injecting pump feed liquor nozzle, 5- glue-feeder regulating valve, 6- plastic emitting
Mouth regulating valve, 7- pressurization glue-injecting pump, 8- pressurization connection component, the first hose of 9-, 10- pressure gauge component, 11- orifice expansion glue
Capsule, 12- intermediate hose, 13- hole sealing tube, 14- bore end expanded capsule, 15- sealing section, the coal seam 16-, 17- connecting pipe hoop, 18-
Head protector;
101- high-pressure rubber pipe connector, 102- injecting glue shut-off valve, 103- monitor pressure gauge regulating valve, and 104- pressure gauge connects
Connector, 105- pressure gauge;I-dynamic grouting system, II-static seal systems;It is soft among 12-1- intermediate hose I, 12-2- second
Pipe, 12-3- third intermediate hose.
Specific embodiment
The present invention is described in detail below in conjunction with attached drawing.
Embodiment 1
As shown in Figure 1-Figure 3, the present embodiment provides a kind of 16 mash gas pumping drilling mucus dynamics of coal seam, and sealing of hole dress can be recycled
It sets, for blocking the drilling orifice section in coal seam 16, including dynamic grouting system I and static seal systems II, wherein static close
Envelope system II includes 3 the second high-pressure hoses, orifice expansion capsule 11, bore end expanded capsule 14 and hole sealing tube 13, wherein sealing
Hole pipe 13 is placed in drilling, and orifice expansion capsule 11 and the interval of bore end expanded capsule 14 set and be sleeved on outside hole sealing tube 13, hole
The side in the adjacent pores of end expanded capsule 14 is block section, and the first end of 3 the second high-pressure hoses is free end, 3 second
For the second end of high-pressure hose respectively with orifice expansion capsule 11, bore end expanded capsule 14 and block section, dynamic grouting system I is logical
Cross it is changeable connected with the first end of 3 the second high-pressure hoses, make dynamic grouting system I to inside orifice expansion capsule 11,
14 inside of bore end expanded capsule or block section injection block glue 1;14 outer wall of orifice expansion capsule 11 and bore end expanded capsule
It is that elastic wall, orifice expansion capsule 11 and bore end expanded capsule 14 expand after injection blocks glue 1, and then block in drilling
Gap between 13 outer wall of wall and hole sealing tube, block section injection are filled between drill hole inner wall and 13 outer wall of hole sealing tube after blocking glue 1
Gap.
Orifice expansion capsule 11 and bore end expanded capsule 14 are equipped with head protector 18 at the both ends that drilling opens up direction, the shield
First 18 protection cap as 14 end of orifice expansion capsule 11 and bore end expanded capsule, and head protector 18 is the bullet with retractility
Property part.
Dynamic grouting system I includes liquid storage container 2, into glue hose 3, pressurization glue-injecting pump 7 and the first hose 9, into glue hose 3
First segment is placed in liquid storage container 2, and the glue inlet of second end connection pressurization glue-injecting pump 7, the first end of the first hose 9 connects pressurization
The gum outlet of glue-injecting pump 7, the position for closing on pressurization glue-injecting pump 7 into glue hose 3 is equipped with glue-feeder regulating valve 5, the first hose 9 closes on
The position of pressurization glue-injecting pump 7 is equipped with gum outlet regulating valve 6.
Second high-pressure hose is equipped with 105 component 10 of pressure gauge for detecting colloid pressure in the second high-pressure hose pipe.
105 component 10 of pressure gauge includes injecting glue shut-off valve 102, monitoring pressure gauge regulating valve 103, pressure gauge connector 104
With pressure gauge 105, wherein injecting glue shut-off valve 102 is arranged on 12 tube body of intermediate hose, and pressure gauge 105 passes through pressure gauge connector
104 are connected between on hose 12, and pressure gauge connector 104 is equipped with monitoring pressure gauge regulating valve 103.
In the present embodiment, liquid storage container 2, which is put into, blocks glue 1, blocks glue 1 by entering pressurization glue-injecting pump into glue hose 3
7, pressurization glue-injecting pump 7 by pressurization connection component 8 pressurize, be connected to glue-injecting pump feed liquor nozzle 4 into glue hose 3, glue-injecting pump into
Be equipped with gum outlet regulating valve 6 at liquid pipe mouth 4, the gum outlet regulating valve 6 of pressurization glue-injecting pump 7 by the first hose 9 it is selectable and
First intermediate hose 12-1, the second intermediate hose 12-2 or the 12-3 connection of third intermediate hose, the first intermediate hose 12-1, second
Intermediate hose 12-2 or third intermediate hose 12-3 interface position are equipped with high-pressure rubber pipe connector 101, and injecting glue shut-off valve 102 is used for
End at high-pressure rubber pipe connector 101, monitoring pressure gauge regulating valve 103 is used for cutoff pressure table connector 104, pressure gauge 105
It is connected between on hose 12 by pressure gauge connector 104.
In intermediate hose 12, the first intermediate hose 12-1 is connected to the second intermediate hose 12-2 in orifice expansion capsule 11
Connection is in bore end expanded capsule 14, and third intermediate hose 12-3 is connected in sealing section 15, and hole sealing tube 13 passes through connecting pipe hoop
17 are supported on drill hole inner wall, while hole sealing tube 13 is the splicing of multiple pipes, and the end of the fixed two neighboring pipe of connecting pipe hoop 17 is realized
Splicing.
Embodiment 2
The present embodiment provides a kind of 16 mash gas pumping drilling mucus dynamics of coal seam, and method for sealing can be recycled, and uses such as embodiment
Hole sealing device can be recycled in 16 mash gas pumping drilling mucus dynamic of coal seam in 1, includes the following steps,
Two intermediate hoses 12 are connected with orifice expansion capsule 11, bore end expanded capsule 14 respectively before step 1, sealing of hole
It is logical, and orifice expansion capsule 11, bore end expanded capsule 14 are sleeved on hole sealing tube 13;
The orifice expansion capsule 11 connected, bore end expanded capsule 14 and hole sealing tube 13 are sent into drilling envelope by step 2
Hole section 15;
Step 3, the bottom that will be placed in liquid storage container 2 into glue hose 3 fill viscolloid in liquid storage container 2, will be into
Glue hose 3 and pressurization glue-injecting pump 7 connect;
Step 4, the glue-injecting pump 7 that will pressurize in the first hose 9 and intermediate hose 12 by connecting;
Step 5 opens injecting glue shut-off valve 102 and monitoring pressure gauge regulating valve 103, opens pressurization glue-injecting pump 7, liquid storage is held
The viscolloid of device 2 is implanted sequentially orifice expansion capsule 11, bore end expanded capsule 14 and sealing section 15;
Step 6, after 105 numerical value of pressure gauge reaches certain numerical value, be first shut off injecting glue shut-off valve 102, then rapidly close
Pressurization glue-injecting pump 7 is closed, drilling and sealing is completed.
After the completion of drilling and sealing, 105 data of periodic observation pressure gauge repeat to walk when 105 numerical value of pressure gauge is decreased obviously
Rapid 3-step 6, carries out secondary fluid infusion.
Dynamic grouting system I is made of high-pressure hose, grouting pump, liquid storing barrel, the viscolloid that flyash is base-material.It is static
Sealing system II is made of drainage tube, 1 capsule of expansion plugging glue, injecting glue valve, monitoring pressure gauge 105 and connecting pipe hoop 17.Sealing of hole
Capsule is individually positioned in the outside and inside of sealing section 15, and sealing of hole capsule is by pipe collar and extraction piping connection, outside sealing of hole capsule
Pressure gauge 105 is installed at the inlet of end, real-time monitoring sealing section 15 and the intracapsular colloid pressure of hole sealing glue, sealing of hole capsule it
Between pass through high-pressure hose connect.Present invention design is simple, structurally reasonable, it can be achieved that colloid infiltration 16 gap of coal seam and crack, right
Pressure real-time monitoring in sealing section 15, timely fluid infusion effectively block drilling loosening and unload pressing ring, improve gas drainage efficiency.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from structure of the invention
Think, all belongs to the scope of protection of the present invention.
Claims (7)
1. hole sealing device can be recycled in a kind of coal bed gas extraction drilling mucus dynamic, for blocking the drilling orifice section in coal seam,
It is characterized by comprising dynamic grouting system and static seal systems, and wherein static seal systems include that 3 the second high pressures are soft
Pipe, orifice expansion capsule, bore end expanded capsule and hole sealing tube, wherein the hole sealing tube is placed in the drilling, the aperture
Expanded capsule and bore end expanded capsule interval set and are sleeved on outside hole sealing tube, and the bore end expanded capsule is by side in adjacent pores
For block section, the first end of 3 second high-pressure hoses is free end, the second end of 3 the second high-pressure hoses respectively and
Orifice expansion capsule, bore end expanded capsule and block section, the dynamic grouting system pass through changeable and 3 described second
The first end of high-pressure hose connects, and makes dynamic grouting system to orifice expansion capsule, bore end expanded capsule inside or envelope
Stifled section injection blocks glue;The orifice expansion capsule and bore end expanded capsule outer wall are elastic wall, orifice expansion capsule and
Bore end expanded capsule expands after injection blocks glue, and then blocks the gap between drill hole inner wall and sealing of hole pipe outer wall, blocks
The gap between drill hole inner wall and sealing of hole pipe outer wall is filled after section injection closure glue.
2. hole sealing device can be recycled in coal bed gas extraction drilling mucus dynamic according to claim 1, it is characterised in that: institute
It states orifice expansion capsule and bore end expanded capsule and is equipped with head protector at the both ends that drilling opens up direction, the head protector is swollen as aperture
The protection cap of swollen capsule and bore end expanded capsule end, and head protector is the elastic component with retractility.
3. hole sealing device can be recycled in coal bed gas extraction drilling mucus dynamic according to claim 2, it is characterised in that: institute
Stating dynamic grouting system includes liquid storage container, into glue hose, pressurization glue-injecting pump and the first hose, described to set into glue hose first segment
In in liquid storage container, the glue inlet of second end connection pressurization glue-injecting pump, the first end of first hose connects pressurization glue-injecting pump
Gum outlet, the position for closing on pressurization glue-injecting pump into glue hose be equipped with glue-feeder regulating valve, first hose close on plus
The position of pressure glue-injecting pump is equipped with gum outlet regulating valve.
4. hole sealing device can be recycled in coal bed gas extraction drilling mucus dynamic according to claim 3, it is characterised in that: institute
It states the second high-pressure hose and is equipped with the pressure gauge component for being used for detecting colloid pressure in the second high-pressure hose pipe.
5. hole sealing device can be recycled in coal bed gas extraction drilling mucus dynamic according to claim 4, it is characterised in that: institute
Stating pressure gauge component includes injecting glue shut-off valve, monitoring pressure gauge regulating valve, pressure gauge connector and pressure gauge, and wherein injecting glue ends
Valve is arranged on intermediate hose tube body, and the pressure gauge is connected between on hose by pressure gauge connector, and pressure gauge connects
Connector is equipped with monitoring pressure gauge regulating valve.
6. method for sealing can be recycled in a kind of coal bed gas extraction drilling mucus dynamic, coal seam watt as claimed in claim 5 is used
Hole sealing device can be recycled in this extraction borehole mucus dynamic, it is characterised in that: include the following steps,
Two intermediate hoses are connected to orifice expansion capsule, bore end expanded capsule respectively before step 1, sealing of hole, and by aperture
Expanded capsule, bore end expanded capsule are sleeved on hole sealing tube;
The orifice expansion capsule connected, bore end expanded capsule and hole sealing tube are sent into drilling and sealing section by step 2;
Step 3 will be placed on the bottom in liquid storage container into glue hose, fill viscolloid in liquid storage container, will be into glue hose
It is connected with pressurization glue-injecting pump;
Step 4, the glue-injecting pump that will pressurize in the first hose and intermediate hose by connecting;
Step 5 opens injecting glue shut-off valve and monitoring pressure gauge regulating valve, pressurization glue-injecting pump is opened, by the sticky glue of liquid storage container
Body is implanted sequentially orifice expansion capsule, bore end expanded capsule and sealing section;
Step 6, after pressure gauge numerical value reaches certain numerical value, be first shut off injecting glue shut-off valve, then rapidly close pressurization injecting glue
Pump, drilling and sealing are completed.
7. method for sealing can be recycled in coal bed gas extraction drilling mucus dynamic according to claim 6, it is characterised in that: bore
After the completion of the sealing of hole of hole, periodic observation pressure gauge data repeat step 3-step 6 when pressure gauge numerical value is decreased obviously, and carry out
Secondary fluid infusion.
Priority Applications (1)
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CN201811544149.0A CN109488250A (en) | 2018-12-17 | 2018-12-17 | Hole sealing device and method can be recycled in a kind of coal bed gas extraction drilling mucus dynamic |
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Cited By (8)
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CN110068256A (en) * | 2019-06-04 | 2019-07-30 | 吕梁学院 | A kind of mechanical swelling type sealing of hole and slip casting integration LARGE APERTURE STATIC IMAGING broken rock device and application method |
CN110984908A (en) * | 2019-12-26 | 2020-04-10 | 河南理工大学 | Hole sealing equipment for gas extraction |
CN111550281A (en) * | 2020-05-11 | 2020-08-18 | 平顶山天安煤业股份有限公司 | Drilling and hole sealing structure for coal mine gas drainage |
CN113027423A (en) * | 2021-01-21 | 2021-06-25 | 河南理工大学 | Device and method for detecting sealing performance of extraction plugging section of cross-layer drilling |
CN113216936A (en) * | 2021-06-21 | 2021-08-06 | 山东科技大学 | Overburden crack detection drilling device with data monitoring function |
CN113466059A (en) * | 2021-06-18 | 2021-10-01 | 武汉科技大学 | Seepage-proofing device, shearing box and use method of seepage-proofing device |
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