CN109577934A - A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium - Google Patents
A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium Download PDFInfo
- Publication number
- CN109577934A CN109577934A CN201811442313.7A CN201811442313A CN109577934A CN 109577934 A CN109577934 A CN 109577934A CN 201811442313 A CN201811442313 A CN 201811442313A CN 109577934 A CN109577934 A CN 109577934A
- Authority
- CN
- China
- Prior art keywords
- anaerobic methane
- methane oxidation
- bacterium
- hole
- coal seam
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium, belongs to coal mine gas drainage technical field, is to be improved, innovated using biological treatment on the basis of conventional hydraulic fracturing technique.This method, which is mainly included in coal body, bores angling hole, with water punching, arranges pipeline, and anaerobic methane oxidation bacterium pressure break coal body is added in fracturing fluid, methane-oxidizing bacteria bacterium solution is added into hole at regular intervals after pressure break.This method can preferably increase gas permeability of coal seam, improve gas drainage efficiency and extracting result, shorten the time of gas drainage, and recycle bacterium solution, save cost, there is preferable application prospect and economic effect.
Description
Technical field
This method belongs to coal mine gas field of biological control, using the characteristic of microorganism, combines with engineering is practical, improves
The permeability coefficient in coal seam is a kind of innovation to existing coal mine underground coal bed anti-reflection technology.
Background technique
Existing underground for poor air permeability, containing gas compared with the anti-reflection processing technique of commonly using of multiple seam be mainly waterpower pressure
Split method, technical step predominantly drills, sealing of hole, pressure break, draining, mash gas extraction, but the change of gas permeability of coal seam is not achieved
It is required that as achieved the effect that extraction in engineering, it is often necessary to the time-consuming several months, seriously affect the duration.If arranged intensively
Hole carries out pressure break it will cause Coal body Instability, and the stability and one-tenth porosity in hole are affected, and are easy to promote gas is too fast to gush instead
Out, cause Gas Outburst, cause security risk, and drilling hole amount is more, will lead to the difficult in maintenance and consumption fund amount in hole compared with
Greatly.Thus it is necessary to improve to current technology, the permeability coefficient in coal seam is improved.
Summary of the invention
This method takes off methane in coal body on the basis of conventional hydraulic fracturing technique, using anaerobic methane oxidation bacterium
Attached, oxidation destroys original methane-coal body balance, simultaneously because metathesis of the oxidation products carbon dioxide to methane,
It can be further improved the desorption effect of methane.Concrete mode is to bore angling hole in coal body, with water punching, reasonable Arrangement pipeline
Afterwards, anaerobic methane oxidation bacterium is added in fracturing fluid, the hole that anaerobic methane oxidation bacterium generates by pressure break enters with fracturing fluid
Into coal body, anaerobic methane oxidation bacterium bacterium solution is added in supplement at regular intervals later, except the work played to methane progress, desorption
With outer, the effect of the minute fissure of support generation is also acted as, to further increase Permeability Coefficent in Coal Seam, shortens gas drainage
Time saves engineering funds investment.
A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium, comprising the following steps:
S101: angling hole is bored in coal body.
S102: using water punching, and the small clast in hole gone out, and the water in hole is extracted out.
S103: arrangement pipeline.
S104: into hole, fracturing fluid of the injection containing anaerobic methane oxidation bacterium carries out pressure break.
S105: into hole, anaerobic methane oxidation bacterium bacterium solution is added in supplement at regular intervals.
Detailed description of the invention
Fig. 1 is the viewgraph of cross-section of pipeline arrangement
It include: 1-note tube in Fig. 1；2-exhaust tubes；3-drillings
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium of the invention, preferable specific embodiment is:
The feature in hole described in S101 step are as follows: the extending direction in hole should be downward, and the axis and hole horizontal in hole
Face should keep 3/1000ths tilt angle, and hole wall should be smooth, and the wall portion and axially bored line of protrusion or recess are most
Big distance should be no more than 1.5cm, and the diameter in hole should be 100mm, and hole is long depending on actual requirement of engineering.
Pipeline described in S103 step arrangement, line characteristics be include note tube 1, exhaust tube 2.Infuse the feature of tube 1
It should be 1cm, duct thickness 2mm apart from bottom hole 20-25cm, the outer radius of pipeline to stretch to one end of hole bottom.Exhaust tube 2
Feature be stretch to one end of hole bottom should be apart from bottom hole 20-25cm, the outer radius of pipeline is 2cm, duct thickness 2mm.
Note tube 1 should have high-pressure sealed valve outside drilling, and the pressure that valve can be born should be at least above in hole and press after injection bacterium solution
Pressure 1MPa when splitting.Exhaust tube 2 should have high pressure gas valve outside drilling, and the pressure that valve can be born should be at least above hole
Pressure 1MPa after interior injection bacterium solution when pressure break.
Pipeline described in S103 step arrangement, infuse tube 1 pipe cross section should in drainage holes circular cross section, and with pumping
The minimum range for adopting hole circular cross section should be 1cm.The pipe cross section of exhaust tube 2 should in drainage holes circular cross section, and with
The minimum range of drainage holes circular cross section should be 1cm.Under the pipe cross section of note tube 1 should be in drilling circular cross section
The pipe cross section in portion, exhaust pipe 2 should infuse the pipe cross section center of circle and the exhaust tube 2 of tube 1 on the top in drilling circular cross section
The pipe cross section center of circle answer the center of circle of through hole cross section.Note tube 1, exhaust tube 2 are consolidated in sealing of hole by sealing material
It is fixed.
In the fracturing fluid of injection described in S104 step be added anaerobic methane oxidation bacterium after should be uniformly mixed, and as far as possible compared with
Few fracturing fluid aerial exposure duration should carry out pressure break coal body in injection hole as early as possible after mixing.Open note 1 He of tube
The high-pressure sealed valve of exhaust tube 2 is added after fracturing fluid reaches pre-provisioning request, closing exhaust tube 2 by infusing tube 1 into drilling
High-pressure sealed valve, pass through note tube 1 carry out pressure break.The concentration that anaerobic methane oxidation bacterium is added should be according to engineering practice
It determines.
After method described in S105 step is pressure break, the high-pressure sealed valve of exhaust tube 2 is opened, exhaust tube 2 is passed through
It is evacuated, opens the high-pressure sealed valve of note tube 1 at regular intervals, anaerobic methane oxidation bacterium bacterium is added into drilling
Liquid.The concentration and volume that anaerobic methane oxidation bacterium bacterium solution is added should be determined according to engineering is practical.
Described herein is the explanation to a kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium.Institute of the present invention
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (4)
1. a kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium, it is characterised in that make on the basis of hydraulic fracturing method
With anaerobic methane oxidation bacterium.
2. a kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium, it is characterised in that anaerobic methane oxygen is added in fracturing fluid
Change bacterium.
3. fracturing fluid according to claim 2, anaerobic methane oxidation bacterium and fracturing fluid should be uniformly mixed, and are being uniformly mixed
It carries out pressure break as early as possible afterwards, reduces fracturing fluid aerial exposure duration.
4. a kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium, it is characterised in that at regular intervals to brill after pressure break
Anaerobic methane oxidation bacterium bacterium solution is added in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442313.7A CN109577934A (en) | 2018-11-29 | 2018-11-29 | A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442313.7A CN109577934A (en) | 2018-11-29 | 2018-11-29 | A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109577934A true CN109577934A (en) | 2019-04-05 |
Family
ID=65925586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811442313.7A Pending CN109577934A (en) | 2018-11-29 | 2018-11-29 | A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577934A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492238A (en) * | 1976-06-23 | 1977-11-16 | Moskov Gor Inst | Method for reducing gas and dust emission from a coal sea |
| RU2166073C2 (en) * | 1998-01-28 | 2001-04-27 | Трубецкой Климент Николаевич | Method of forming methane technogenic reservoir in coal seam |
| RU2166072C2 (en) * | 1997-07-24 | 2001-04-27 | Трубецкой Климент Николаевич | Method of forming methane technogenic reservoir in coal seam |
| WO2002034931A2 (en) * | 2000-10-26 | 2002-05-02 | Guyer Joe E | Method of generating and recovering gas from subsurface formations of coal, carbonaceous shale and organic-rich shales |
| CN1701840A (en) * | 2005-05-13 | 2005-11-30 | 陈东科 | Microbiological degradation technology for coal mine gas |
| CN101906989A (en) * | 2010-07-29 | 2010-12-08 | 吴星剑 | Gas decomposition eliminating liquid and coal mine gas control method |
| CN102536305A (en) * | 2012-03-06 | 2012-07-04 | 中国矿业大学 | Method for increasing permeability of inert gas and extracting gas |
| CN104963670A (en) * | 2015-05-18 | 2015-10-07 | 太原理工大学 | Method for expanding and increasing permeability of hole volumes for drilling in underground coal seam |
| CN106150540A (en) * | 2016-07-01 | 2016-11-23 | 重庆市能源投资集团科技有限责任公司 | The anti-gas pumping method that transfinites in the tunnel of a kind of progressively blood pressure lowering |
| CN106368730A (en) * | 2016-11-08 | 2017-02-01 | 淮南矿业(集团)有限责任公司 | Coal seam hydraulic pressure jetting breathability-improving system and construction method thereof |
| CN108425662A (en) * | 2018-02-09 | 2018-08-21 | 河南工程学院 | A kind of microorganism displacement gas experimental rig and test method |
-
2018
- 2018-11-29 CN CN201811442313.7A patent/CN109577934A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492238A (en) * | 1976-06-23 | 1977-11-16 | Moskov Gor Inst | Method for reducing gas and dust emission from a coal sea |
| RU2166072C2 (en) * | 1997-07-24 | 2001-04-27 | Трубецкой Климент Николаевич | Method of forming methane technogenic reservoir in coal seam |
| RU2166073C2 (en) * | 1998-01-28 | 2001-04-27 | Трубецкой Климент Николаевич | Method of forming methane technogenic reservoir in coal seam |
| WO2002034931A2 (en) * | 2000-10-26 | 2002-05-02 | Guyer Joe E | Method of generating and recovering gas from subsurface formations of coal, carbonaceous shale and organic-rich shales |
| CN1701840A (en) * | 2005-05-13 | 2005-11-30 | 陈东科 | Microbiological degradation technology for coal mine gas |
| CN101906989A (en) * | 2010-07-29 | 2010-12-08 | 吴星剑 | Gas decomposition eliminating liquid and coal mine gas control method |
| CN102536305A (en) * | 2012-03-06 | 2012-07-04 | 中国矿业大学 | Method for increasing permeability of inert gas and extracting gas |
| CN104963670A (en) * | 2015-05-18 | 2015-10-07 | 太原理工大学 | Method for expanding and increasing permeability of hole volumes for drilling in underground coal seam |
| CN106150540A (en) * | 2016-07-01 | 2016-11-23 | 重庆市能源投资集团科技有限责任公司 | The anti-gas pumping method that transfinites in the tunnel of a kind of progressively blood pressure lowering |
| CN106368730A (en) * | 2016-11-08 | 2017-02-01 | 淮南矿业(集团)有限责任公司 | Coal seam hydraulic pressure jetting breathability-improving system and construction method thereof |
| CN108425662A (en) * | 2018-02-09 | 2018-08-21 | 河南工程学院 | A kind of microorganism displacement gas experimental rig and test method |
Non-Patent Citations (8)
| Title |
|---|
| 于红等: "模拟实体煤赋存环境下厌氧微生物降解煤吸附甲烷实验", 《煤矿安全》 * |
| 刘小敏: "利用厌氧型微生物降解煤矿瓦斯现状研究", 《现代矿业》 * |
| 周霏等: "甲烷氧化菌应用于煤矿甲烷防治途径探讨", 《煤炭技术》 * |
| 尹振林等: "瓦斯较难抽放煤层水力压裂增透技术的应用", 《化工管理》 * |
| 李栋等: "煤矿井下穿层水力压裂钻孔布置优化分析及应用", 《矿业安全与环保》 * |
| 田坤云: "《高压水载荷下煤体变形特性及瓦斯渗流规律》", 31 March 2018, 中国矿业大学出版社 * |
| 程卫民等: "《矿井通风与安全》", 29 February 2016, 煤炭工业出版社 * |
| 蔡传辉: "甲烷氧化菌降解甲烷的性能及其影响因素实验研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107882531B (en) | Selective water control channeling sealing method for flooding production well of water-flooded oil reservoir | |
| CN204255690U (en) | Piston type underground water sampler | |
| CN202560157U (en) | Grouting device | |
| CN201517406U (en) | Three-channel closed coal bed gas well gas-lift system | |
| CN206647079U (en) | Bag type paste fluid filling hole sealing device with pressure | |
| CN109681262A (en) | A method of improving gas drilling extraction concentration in broken coal body | |
| CN105114116A (en) | Method for strengthening regional gas extraction through hydro-thermal coupling fracturing | |
| CN113847082A (en) | Method for enhancing coal seam fracturing and extraction effects by ultrasonic field | |
| CN106014363A (en) | Method for improving underground coal mine gas extraction efficiency | |
| CN107387044A (en) | A kind of method that biological methane output is improved using coal seam origin fungi | |
| CN108661603B (en) | Method for improving methane recovery ratio by inducing coal bed self-transformation through nitrogen injection | |
| US20110067874A1 (en) | Method of redistributing well bore fluid | |
| CN105756637B (en) | A method of coal bed gas recovery ratio is improved beneficial to endogenous microbes using coal seam | |
| CN109577934A (en) | A kind of coal seam anti-reflection method using anaerobic methane oxidation bacterium | |
| CN103410467A (en) | Hole drilling and sealing device and method with continuous belt pressure | |
| US20130223935A1 (en) | Methods and arrangements for carbon dioxide storage in subterranean geological formations | |
| CN105201546A (en) | Device and method for improving gas extraction concentration | |
| CN114607319B (en) | Method for improving coalbed methane yield of multi-branch butt joint well by intermittent circulating liquid injection | |
| CN111075496B (en) | Device for comprehensively eliminating and suppressing outburst and dust of coal bed by injecting flue gas absorption liquid at low pressure and outburst-eliminating and dust-suppressing method | |
| CN206387780U (en) | A kind of microbial degradation raw coal adsorbed methane experimental provision | |
| CN201187324Y (en) | Gas column hole packer | |
| CN210964557U (en) | Device for treating carbon dioxide in industrial waste gas based on coal mine goaf | |
| CN114411827A (en) | Vacuum prepressing microorganism grouting rib composite pile foundation model for foundation stabilization | |
| CN202690005U (en) | Expanded secondary quick pressure hole sealing device | |
| CN207583343U (en) | The safe blowout hookup of oil field well oil pipe Operating Pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |