CN208996731U - A kind of coal bed gas ground drilling crosses goaf integrated system - Google Patents
A kind of coal bed gas ground drilling crosses goaf integrated system Download PDFInfo
- Publication number
- CN208996731U CN208996731U CN201821402776.6U CN201821402776U CN208996731U CN 208996731 U CN208996731 U CN 208996731U CN 201821402776 U CN201821402776 U CN 201821402776U CN 208996731 U CN208996731 U CN 208996731U
- Authority
- CN
- China
- Prior art keywords
- coal bed
- bed gas
- goaf
- well head
- dust
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of coal bed gas ground drilling complete set of equipments, goaf integrated system is crossed more particularly to a kind of coal bed gas ground drilling, including sequentially connected air-compressor set, nitrogen making machine and pressurization unit, the output end for being pressurized unit accesses well head, is pressurized on the pipeline between unit and well head and is equipped with ball-and-seat；Well head is circumscribed with row's rock powder device, and row's rock powder device includes connected dust-extraction unit and pollution discharge pond, and dust-extraction unit connects well head, external water in dust removal between dust-extraction unit and pollution discharge pond by surface line.For utility model device according to coal bed gas well drilling well site size, corollary equipment is structurally reasonable, while can directly real-time perfoming monitor, and is read out to monitoring data, facilitates management, safety higher, ensures that coal bed gas ground drilling crosses the safe and efficient progress in goaf.
Description
Technical field
The utility model belongs to the technical field of coal bed gas surface drilling system, and in particular to a kind of coal bed gas ground drilling
Cross goaf integrated system.
Background technique
Traditional multilayer coal mining method is the working from top down program of " thin after first thick, from top to bottom ", mined out to reduce
Area underlies coal seam gas-bearing capacity, ensures the following group coal seam safety and high efficiency, and the country, which had carried out, to be crossed goaf extraction and underlie coal
Wellbore test is taken out on layer gas ground in advance, achieves preferable pre- pumping effect.Compared with conventional ground takes out well in advance, gob well is crossed
Maximum difficulty of construction is that gob well liquid was crept into using clear water is missed, and normal circulation cannot be established；Using pneumatic drill
Goaf is passed through, portion of air can be injected in goaf and be mixed with gas, increase underground coal mine production safety hidden danger；To protect
Hindered mined out safe and efficient drilling well, and realized nitrogen injection and cross gob well technique, due to crossing the particularity of gob well, needed
Goaf integrated system is crossed to ground drilling to study.
Summary of the invention
The purpose of this utility model aims to solve the problem that coal field ground extraction goaf is underlied coal bed gas well nitrogen injection drilling process
In, according to gob well process requirement excessively, and proposes a kind of coal mine and cross goaf ground nitrogen injection drilling complexes system.
The utility model adopts the following technical solution:
A kind of coal bed gas ground drilling crosses goaf integrated system, including sequentially connected air-compressor set, nitrogen making machine and increasing
Press group is pressurized the output end access well head of unit, is pressurized on the pipeline between unit and well head and is equipped with ball-and-seat；Outer wellhead
The row's of being connected to rock powder device, row's rock powder device include connected dust-extraction unit and pollution discharge pond, and dust-extraction unit is connected by surface line
Well head, external water in dust removal between dust-extraction unit and pollution discharge pond.
The air-compressor set is that no less than four air compressor machines are formed in parallel, and pressurization unit is by being no less than three superchargers
It is formed in parallel.
Blow valve is connected between ball-and-seat and well head.
Monitoring device is connected on bottom surface pipeline between well head and dust-extraction unit.
For utility model device according to coal bed gas well drilling well site size, corollary equipment is structurally reasonable, while can be directly real
When be monitored, monitoring data are read out, facilitate management, safety higher, ensure coal bed gas ground drilling cross goaf
Safe and efficient progress.
Detailed description of the invention
Fig. 1 is the system connection schematic diagram of the utility model；
In figure: 1 air compressor machine, 2 nitrogen making machines, 3 superchargers, 4 ball-and-seats, 5 blow valves, 6 blow-down pipes, 7 well heads, 8 monitoring devices,
9 dust-extraction units, 10 water in dust removal, 11 pollution discharge ponds.
Specific embodiment
In conjunction with attached drawing, specific embodiment of the present utility model is described further:
As shown in Figure 1, a kind of coal mine crosses goaf ground nitrogen injection drilling complexes system, apparatus system includes pneumatics
Machine, nitrogen making machine, supercharger, monitoring device and row's (rock powder) liquid device.
The air compressor machine includes four unit parallel connections, and has separate system, is equipped with valve on the pipeline of separate system,
Separate system finally imports main pipe line;
The nitrogen making machine two connecting pins series connection in systems, import always imports pipeline with air compressor machine and connect, export and
Supercharger is connected, and is equipped with valve on the pipeline of outlet;
The supercharger has three unit parallel connections, and import always imports pipeline with nitrogen making machine and connect, outlet and well head drilling tool
It is connected, centre setting ball-and-seat, by-passing valve connects blow-down pipe.
Gas monitor device is accessed on row's rock powder device top, and lower part is accessed deduster and the dedusting mouth of a river, is finally discharged into
Mud pit.
The gas monitor device is gas multi-parameter sensor.
The specific implementation method of the utility model is: air enters system by high pressure header system by four air-compressor sets
Nitrogen machine is isolated to obtain the nitrogen that purity is 95% or more by nitrogen making machine, supplies respectively to three pressurization units, make supercharger
The nitrogen of outlet has enough pressure to carry the water flooding in rock powder and pit shaft, generates high pressure gas by pressurization unit and passes through
Ball-and-seat feeds well head, if high pressure nitrogen can be vented by blow valve by occurring abnormal conditions in system.High pressure nitrogen
It feeds shaft bottom from well head to purge to surface line rock powder, surface line interface top access monitoring instrument first is
Gas multi-parameter sensor monitors gas density, ensures drilling safe construction, and deduster and the dedusting mouth of a river are accessed in lower part, finally
Rock powder is discharged into mud pit.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, all according to the technical essence of the utility model, any simple modification to the above embodiments, equivalent variations are fallen
Enter within the protection scope of the utility model.Wherein, the equipment, component etc. of without specific instruction is existing in the utility model
Technology, those skilled in the art can directly type selecting use.
Claims (4)
1. a kind of coal bed gas ground drilling crosses goaf integrated system, it is characterised in that: including sequentially connected air-compressor set, system
Nitrogen machine and pressurization unit are pressurized the output end access well head of unit, are pressurized on the pipeline between unit and well head and are equipped with single stream
Valve；Well head is circumscribed with row's rock powder device, and row's rock powder device includes connected dust-extraction unit and pollution discharge pond, and dust-extraction unit passes through ground
Pipeline connects well head, external water in dust removal between dust-extraction unit and pollution discharge pond.
2. coal bed gas ground drilling according to claim 1 crosses goaf integrated system, it is characterised in that: the air compressor machine
Group is that no less than four air compressor machines are formed in parallel, and pressurization unit is formed in parallel by being no less than three superchargers.
3. coal bed gas ground drilling according to claim 2 crosses goaf integrated system, it is characterised in that: ball-and-seat and well
Blow valve is connected between mouthful.
4. coal bed gas ground drilling according to claim 3 crosses goaf integrated system, it is characterised in that: well head and dedusting
Monitoring device is connected on bottom surface pipeline between device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402776.6U CN208996731U (en) | 2018-08-29 | 2018-08-29 | A kind of coal bed gas ground drilling crosses goaf integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402776.6U CN208996731U (en) | 2018-08-29 | 2018-08-29 | A kind of coal bed gas ground drilling crosses goaf integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996731U true CN208996731U (en) | 2019-06-18 |
Family
ID=66799056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821402776.6U Active CN208996731U (en) | 2018-08-29 | 2018-08-29 | A kind of coal bed gas ground drilling crosses goaf integrated system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996731U (en) |
-
2018
- 2018-08-29 CN CN201821402776.6U patent/CN208996731U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109057795A (en) | It is a kind of to cross goaf coal bed gas ground drilling method | |
| CN108678802A (en) | A kind of coal mine bores, punching, takes out integrated outburst prevention device and method | |
| CN105114038A (en) | System and method for increasing drainage quantity of coal bed gas of ground well drainage goaf | |
| CN110242215B (en) | Adjustable gas directional drilling equipment and method for underground broken soft coal seam of coal mine | |
| CN207761627U (en) | A kind of oil well air water mixed water injection device | |
| CN101629491B (en) | Coal mine omnipotent gas extraction agent | |
| CN101985877A (en) | High pressure water jet cutting drum coal dropping double power shearer | |
| CN208996731U (en) | A kind of coal bed gas ground drilling crosses goaf integrated system | |
| CN110439525A (en) | Coal bed gas horizontal well de-plugging, anti-reflection completion method | |
| CN206190278U (en) | Bi -polar water pressure control single loop blocks up water detection instrument | |
| CN102128047A (en) | Gas-slag separation and recovering system for drilling construction | |
| CN207527290U (en) | A kind of safe extraction supercharging gathering system in goaf coal bed gas ground | |
| CN204729086U (en) | Gas pressure measurement instrument | |
| CN201738924U (en) | Dual-power coal mining machine with seam-cutting high-pressure water jet flow and coal dropping roller | |
| CN205477467U (en) | Restore device of gas drainage drilling from advancing rotatory gas jet of formula | |
| CN101387203A (en) | Rapid dust removal method and device in tunnel | |
| CN215170174U (en) | Coal mining system for gas fracturing and gas displacement | |
| CN114000834A (en) | Coal mine mining area ground gas extraction well expansion device and use method thereof | |
| CN110541697B (en) | Expansion hose type hydraulic fracturing method for permeability increase of coal seam | |
| CN202788934U (en) | Underground coal mine downward hole drainage device | |
| CN203891861U (en) | Ground simulation device for hydraulic ejector | |
| CN207017985U (en) | Stope adopts the pre- gas-removing shallow bore hole hydraulic fracturing device of section in advance | |
| CN1975111A (en) | Heading face coal seal water-infusion technology and application thereof | |
| CN109113784B (en) | Coal seam gas extraction-water injection coupling device and method | |
| CN109138831A (en) | A kind of fire-extinguishing integrated technique of New well drilling applied to mine fire rescue |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |