CN203452693U - Environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water - Google Patents
Environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water Download PDFInfo
- Publication number
- CN203452693U CN203452693U CN201320233927.0U CN201320233927U CN203452693U CN 203452693 U CN203452693 U CN 203452693U CN 201320233927 U CN201320233927 U CN 201320233927U CN 203452693 U CN203452693 U CN 203452693U
- Authority
- CN
- China
- Prior art keywords
- gas
- water
- boring
- moisture trap
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
An environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water is provided. During coal bed gas extraction, as a result of excessive extraction of groundwater, there are often ground surface subsidence and groundwater level decline, leading to leaks of toxic and hazardous gases such as coal bed gas and even causing severe environmental disasters. To solve the problems, we invent the environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water. The device is characterized in that groundwater extracted during gas extraction is sent back underground, so that the novel device allows coal bed gas extraction to be carried out without damaging the environment while the drilling water level and the negative pressure of gas exhaust are in a dynamic balance.
Description
technical field:while bleeding, the environmental protection air extractor of circulation water filling belongs to a gas production field for coal petrography device in Gas, natural gas, Oil/gas Well, is specially adapted to environmental protection, the field that protection coal bearing seams and earth's surface are not affected by gas production.
background technology:by retrieval comprehensively both at home and abroad, the exploitation of the various coal petrography gas that use at present, natural gas, Oil/gas Well, all do not have to consider after bleeding underground water, subterranean strata even to the impact on earth's surface, and take to note other gas or fluid injection body or medicine in boring, object is all to increase the gas flow of extraction or the oil and gas content of extraction.The never impact of consideration of regional the earth integrated environment, the impact on local environment after an even independent hole pumping and mining process and extraction.
summary of the invention:content of the present utility model is the problem for above-mentioned existence, by follow-up study and the work place study of decades, has invented this technology.A kind of environmental protection degassing method of the circulation water filling while bleeding can be used in natural gas exploitation, coal-bed gas exploitation, shale gas exploitation, oil gas well mining.
Boring is by concentric tubes sealing of hole, innermost tube is water injection pipe, water injection pipe is directly connected with the water out of storage tank, the outer tube bottom of concentric tubes is presbyopia pipe, presbyopia pipe is positioned at the gas storage interval of boring, outer tube is directly connected with gas pumping pipe, gas pumping pipe is connected with air water pump, air water delivery side of pump is connected with the coal petrography device in Gas entrance on water storage moisture trap, gas is exported by the gas gas outlet on water storage moisture trap, the crosspoint outlet of the water injection pipe in concentric tubes and coal petrography gas pumping pipe is high density, high-intensity welding is connected, it is all that high strength flange screw is connected that all pipeline equipments connect.After boring completion, at the center of boring, water injection pipe is set one time, the port of export of water injection pipe is positioned at below the water level of boring rock stratum, more than the whole nose end of the holing position of 5 meters.After boring completion, coal seam gas and rock stratum water are extracted out by the ring-like passage between drill hole wall and water injection pipe, after the coal petrography gas extracting and the mixed liquor of water, directly by pipeline, enter in the water storage moisture trap on ground.Water storage moisture trap is comprised of water butt, coal petrography device in Gas water inlet, gas export and water out, boring aqueous vapor mixture is extracted out and is transported in water storage moisture trap by pumping plant after, water is because deadweight falls into the bottom water butt of water storage moisture trap, and flowed out by delivery port, the gas export that the automatic separation of gas enters the ，Bing You top, top of water storage moisture trap flows out.Boring extract out after isolated water by delivery port by the road facility be connected with water injection pipe entrance, thereby realize to water filling in holing.
A kind of environmental protection air extractor of the circulation water filling while bleeding compared with prior art has the following advantages:
1, a kind of environmental protection air extractor of the circulation water filling while bleeding can be according to the gush out water yield of water level of boring coal rock layer, determine the size of water storage moisture trap, by circulation, take out water filling and rate of air sucked in required and mutually adjust and determine that rate of air sucked in required and circulation water injection rate guarantee to bleed unimpeded, boring can be extracted out to the ambient influnence that aqueous vapor bring and be reduced to minimum.
2, a kind of environmental protection air extractor of the circulation water filling while bleeding can be according to the air pressure of the pressure of groundwater table and coal rock layer gas, the geostatic stress on stratum distributes, boring penetrates coal petrography process and the determined pumping volume of dynamic equilibrium, drainage radius and the extraction influence basin matching equipped in extraction, and calculate thus the spacing of wells, drilling hole amount and extraction frequency, extraction time, convenient design, convenient construction.
3, a kind of while bleeding the water-filling method of the environmental protection air extractor extraction process of circulation water filling take static pressure water filling as main, take dynamical pressure water infusion as auxiliary, injected water volume should suitably be less than extraction amount, smooth to ensure extraction, after the coal rock layer gas extraction that extraction borehole is extracted out, adopt dynamical pressure water infusion, rock stratum water enough being injected in extraction borehole in full that extraction process is extracted out, and interval injection length must not, over 6 months, can facilitate continuously and inject.
4, a kind of environmental protection air extractor of the circulation water filling while bleeding can be guaranteed the balance of extraction and water burst to greatest extent in extraction process, guarantee the blowout that the dynamic equilibrium of underground coal rock layer stress there will not be concentrated stress sudden outburst to cause, more there will not be heavy and stress in large area to decline suddenly to cause crack, ground to gush out environmental disaster that extraction gas produces.
5, between each boring and boring, can set up dynamic pressure, flow, DATA REASONING network, in the time affecting in mutual extraction and scope, carry out mutual balance, mutually adjust, mutually create safe extraction conditions and environment protection and the extraction Dynamic Management System in regional extent.
Accompanying drawing explanation:
Accompanying drawing is a kind of environmental protection air extractor schematic diagram of the circulation water filling while bleeding.
1, boring; 2, water injection pipe; 3, coal petrography gas pumping pipe;
4, water storage moisture trap; 5, storage tank; 6, coal petrography device in Gas entrance;
7, device in Gas outlet; 8, water out; 9, air water pump.
the specific embodiment:now illustrate to the drawings as examples: the boring of completion is lowered to bilayer sleeve hole packer in (1), drill center is water injection pipe (2), between boring (1) and water injection pipe (2), it is coal petrography gas pumping pipe (3), it is presbyopia pipe afterwards that coal petrography gas pumping pipe (3) enters extraction gas-bearing formation position below boring, coal petrography device in Gas enters in coal petrography gas pumping pipe (3) by presbyopia, by air water pump (9), coal petrography gas aqueous vapor is sent in water storage moisture trap (4) by coal petrography device in Gas entrance (6), gas after separation exports (7) by device in Gas and enters place to use, water after separation enters storage tank (5) the delivery port (8) by bottom through water injection pipe (2) injection hole again, thereby realized a kind of environmental protection air extractor of the circulation water filling while bleeding.
Claims (3)
1. the environmental protection air extractor of a circulation water filling while bleeding, it is characterized in that: boring is by concentric tubes sealing of hole, innermost tube is water injection pipe, water injection pipe is directly connected with the water out of storage tank, the outer tube bottom of concentric tubes is presbyopia pipe, presbyopia pipe is positioned at the gas storage interval of boring, outer tube is directly connected with gas pumping pipe, gas pumping pipe is connected with air water pump, air water delivery side of pump is connected with the coal petrography device in Gas entrance on water storage moisture trap, gas is exported by the gas gas outlet on water storage moisture trap, the crosspoint outlet of the water injection pipe in concentric tubes and coal petrography gas pumping pipe is high density, high-intensity welding is connected, it is all that high strength flange screw is connected that all pipeline equipments connect.
2. the environmental protection air extractor of a kind of circulation water filling while bleeding according to claim 1, is characterized in that: the center in boring arranges water injection pipe one time, and the port of export of water injection pipe is positioned at below the water level of boring rock stratum, more than the whole nose end of the holing position of 5 meters.
3. the environmental protection air extractor of a kind of circulation water filling while bleeding according to claim 1, it is characterized in that: water storage moisture trap is comprised of water butt, coal petrography device in Gas water inlet, gas export and water out, boring aqueous vapor mixture is extracted out and is transported in water storage moisture trap by pumping plant after, water is because deadweight falls into the bottom of water storage moisture trap, and flowed out by delivery port, the gas export that the automatic separation of gas enters the ，Bing You top, top of water storage moisture trap flows out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320233927.0U CN203452693U (en) | 2013-04-16 | 2013-04-16 | Environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320233927.0U CN203452693U (en) | 2013-04-16 | 2013-04-16 | Environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452693U true CN203452693U (en) | 2014-02-26 |
Family
ID=50132578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320233927.0U Expired - Fee Related CN203452693U (en) | 2013-04-16 | 2013-04-16 | Environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575263A (en) * | 2017-09-30 | 2018-01-12 | 太原理工大学 | A kind of device of underground heat injection enhanced gas extraction gas |
-
2013
- 2013-04-16 CN CN201320233927.0U patent/CN203452693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575263A (en) * | 2017-09-30 | 2018-01-12 | 太原理工大学 | A kind of device of underground heat injection enhanced gas extraction gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2014336858B2 (en) | Method for enhanced fuel gas extraction by coal mine underground gas-liquid dual-phase alternating phase-driven fracturing of coal body | |
| CN107401393B (en) | Drainage and gas production integrated goaf gas extraction well body structure and construction method thereof | |
| CN204609832U (en) | A kind of coal mine gas quick fluid filling hole sealing device with pressure | |
| CN103696800B (en) | A kind of brill cuts pressure and takes out method | |
| CN103061684B (en) | Open-hole horizontal well segmentation many bunches of homogeneous acidification tubing strings and acidization tool thereof | |
| CN206722798U (en) | A kind of combined type coal-bed flooding pressure break and gas pumping one hole sealing device | |
| CN101915086B (en) | Coal mine underground gas borehole fracturing method | |
| CN103306657B (en) | A kind of coal seam cutting release is anti-reflection and slot holding device and method | |
| CN207093047U (en) | A kind of negative pressure gas-lift production tubing string | |
| CN205063929U (en) | Colliery is sealed in pit and is pressed integration segmentation hydraulic fracturing device | |
| CN204754895U (en) | Device is adopted to colliery slot of pulse water conservancy in pit - anti -reflection taking out of fracturing integration | |
| CN105507940A (en) | Slotting, plugging and fracturing integrated type intensified marsh gas extraction device and method | |
| US20160145979A1 (en) | Method for Extracting Coalbed Gas through Water and Coal Dust Drainage and a Device Thereof | |
| CN104696006B (en) | Ground drilling penetrates the method for abandoned coal pillar extraction multilamellar old dead zone remnants coal bed gas | |
| CN201843600U (en) | SAGD (Steam Assisted Gravity Drainage) mechanical lifting circulating preheating equipment | |
| WO2020151207A1 (en) | Coordinative extraction and pressure relief method for high confined water high gas coal seam group | |
| WO2015010461A1 (en) | Fissured substrata water pumping apparatus and method | |
| CN109322644B (en) | Pressure-control drainage gas production method and system for coal-bed gas well | |
| CN102434192A (en) | Device and method for enhancing coal seam fracturing effect | |
| RU2387784C1 (en) | Method for preliminary degassing of coal beds | |
| CN103195470A (en) | Gas discharge collecting device for drilling construction | |
| CN203452693U (en) | Environment-friendly gas exhaust device capable of exhausting gas and cyclically injecting water | |
| CN103233710A (en) | Environment-friendly gas extracting method capable of extracting gases and circularly injecting water simultaneously | |
| CN204082100U (en) | Large span long well section partition-type flow string | |
| CN103541679B (en) | Method for sealing underground hydraulic fracture drilled hole of coal mine in combined manner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20160416 |