CN206874267U - A kind of coal underground gasifying furnace furnace body structure - Google Patents
A kind of coal underground gasifying furnace furnace body structure Download PDFInfo
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- CN206874267U CN206874267U CN201720709384.3U CN201720709384U CN206874267U CN 206874267 U CN206874267 U CN 206874267U CN 201720709384 U CN201720709384 U CN 201720709384U CN 206874267 U CN206874267 U CN 206874267U
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Abstract
The utility model provides a kind of coal underground gasifying furnace furnace body structure, it is characterised in that including：U-shaped well, at least one branch's inclination section and at least one branch levels section；U-shaped well construction is divided into straight well section, docking straight well section, trunk horizontal segment and trunk inclination section；Each branch's inclination section is connected with straight well section, and each branch levels section is connected with each branch's inclination section, and each branch levels section does not connect with the U-shaped well docking straight well section, and the U-shaped well wellhole section is circle.The underground gasification furnace of U-shaped multiple-limb butt shaft technique construction integration is made full use of, thick sandstone is divided into different layers position and carries out gasification exploitation.The structure of the type of furnace is by the way that trunk horizontal well is parallel with least one branch horizontal well, three-dimensional arrangement, thick sandstone layering is gasified using each branch horizontal well, greatly save and build stove cost, meanwhile, fundamentally solve the problems, such as the thick sandstone wasting of resources of gasifying.
Description
Technical field
Underground coal gasification(UCG) production technique is the utility model is related to, in particular to a kind of coal
Charcoal underground gasification furnace furnace body structure.
Background technology
Coal causes various dirts during the exploitation of routine, transport, equipment and processing and utilization to environment for human survival
Dye, such as ground caves in, the discharge of sewage and pernicious gas, has a strong impact on people's health and living environment.It is and current complete
Ball atmosphere pollution is increasingly severe, continues to develop the common recognition that clean energy resource has become countries in the world.Especially the proximal segment time I
The many city haze weather of state continues, and pollution that caused by coal burning turns into denouncing for more and more people, development of coal clean mining and burning skill
Art, in China, this coal reserves and consumption big country seem all the more important.In Underground Coal Gasification Process, burned ash
Slag, other harmful substances and radiogen all stay in underground, reduce land subsidence and it is above-mentioned it is each during environmental pollution, this is just
So that coal underground gasification technology has obtained increasing attention.
Without well formula underground coal gasification(UCG) production technique be by subterranean coal construction geology drilling carry out gas in situ
Change, the solid organic matters in coal are changed into by heating power and chemical action the process of fuel gas.In this course, gasify
The entrance of agent, the discharge of the chemical reaction in coal seam, gas be both needed to realize by underground gasification furnace, and underground gasification furnace furnace type structure rises
Vital effect.The existing gasification furnace type of furnace is mainly little both for China Middle Eastern coal seam general thickness
Occurrence characteristics and design, and the NORTHWEST CHINA portion area condition of coal formation is superior, and by taking Turpan- Hami basin as an example, its coal accumulation is extensive and strong
Strong, the thick sandstone for occurring nearly hundred meters of individual layer average thickness repeatedly is its feature, then the existing gasification furnace type of furnace of application is at me
State northwestward thick sandstone preservation region carries out underground gasification engineering, will cause very big wave to non-renewable coal resources
Take.
Utility model content
In consideration of it, it is in view of the above-mentioned problems, proposing structure one the utility model proposes a kind of the purpose of this utility model
The new coal underground gasifying furnace type of furnace of kind.
The utility model proposes a kind of coal underground gasifying furnace furnace body structure, it is characterised in that including：U-shaped well, at least
One branch's inclination section and at least one branch levels section；U-shaped well construction is divided into straight well section, docking straight well section, trunk horizontal segment
With trunk inclination section；Each branch's inclination section connects with straight well section, each branch levels section and each branch's inclination section
Connection, each branch levels section do not connect with the U-shaped well docking straight well section, and the U-shaped well wellhole section is circle.
Further, above-mentioned coal underground gasifying furnace furnace body structure, it is characterised in that including at least one reserved side opening,
Each reserved side opening is opened in the docking straight well section side wall of U-shaped well, and the reserved side opening is used to connect the branch levels section.
Further, above-mentioned coal underground gasifying furnace furnace body structure, it is characterised in that the reserved side opening is away from the branch
Horizontal segment horizontal range 2m.
Further, above-mentioned coal underground gasifying furnace furnace body structure, it is characterised in that the well straight well section of U-shaped well, docking are straight
Well section and trunk inclination section are provided with petroleum casing pipe and cemented the well, and trunk horizontal segment is provided with coal seam branch pillar.
Further, above-mentioned coal underground gasifying furnace furnace body structure, it is characterised in that be provided with oil in branch's inclination section
Sleeve pipe, branch levels section are provided with coal seam branch pillar.
Further, above-mentioned coal underground gasifying furnace furnace body structure, it is characterised in that the trunk horizontal segment of the U-shaped well
It is arranged in bottom.
The beneficial effects of the utility model：Make full use of the underground gasification of U-shaped multiple-limb butt shaft technique construction integration
Stove, thick sandstone is divided into different layers position and carries out gasification exploitation, it will cause above mentioned problem to be addressed, and be a kind of practical
Utility model.The structure of the type of furnace is by the way that trunk horizontal well is parallel with least one second branch horizontal well, three-dimensional cloth
Put, thick sandstone layering is gasified using each branch horizontal well, greatlys save and builds stove cost, meanwhile, fundamentally solve
Certainly the problem of the gasification thick sandstone wasting of resources.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality
New limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the utility model embodiment front view
Fig. 2 is the utility model embodiment left view
Fig. 3 is the utility model embodiment right view
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the case where not conflicting, the implementation in the utility model
Feature in example and embodiment can be mutually combined.It is below with reference to the accompanying drawings and in conjunction with the embodiments new to describe this practicality in detail
Type.
Embodiment one：
The technical solution of the utility model：Feature is that type of furnace structure uses U-shaped multiple-limb butt shaft technology.Pass through trunk
Horizontal well builds the first gasification tunnel in coal seam bottom, docks and links up with target spot straight well.Pass through the vertical section of trunk horizontal well
In coal seam, top construct at least one two branch horizontal well, the gasification tunnel of structure second or the 3rd, docked with target spot straight well but
Do not link up.Trunk gasification is first carried out, then top branch is gasified successively again, is total to using a set of gas injection device by horizontal well
Vertical section is sequentially placed into the difference branch of underground, and product gas is discharged successively by shared docking straight well.
As shown in figure 1, a kind of coal underground gasifying furnace furnace body structure mainly includes：U-shaped well straight well section 1, docking straight well 2,
Trunk inclination section 4, two branch's inclination sections 3, trunk horizontal segment 6, two branch levels sections 5, straight well reserve side opening 7.U-shaped well wellhole is cut
Face is circle.
Construction straight well 2 passes through the bottom plate above 2-3 rice of rock stratum 8 to coal seam 9, and tripping in petroleum casing pipe is simultaneously cemented the well, wherein in coal seam
Sleeve pipe reserves side opening 7 at the 2-3 rice on the upper side of middle part.
Construct U-shaped well straight well section 1, tripping in petroleum casing pipe is simultaneously cemented the well；Continue trunk inclination section 4 of constructing, tripping in petroleum casing pipe
And cement the well；Continue to construct trunk horizontal segment 6 to the bottom of straight well 2 and link up, the coal seam branch pillar of tripping in punching, do not cement the well.
In the U-shaped inner sleeve uplifting window of well straight well section 1, two branch's inclination sections 3 of constructing, tripping in petroleum casing pipe is simultaneously cemented the well；After
Two branch levels sections 5 of continuous construction to reserved 2 meters or so of the left side of side opening 7 stops boring, and the coal seam branch pillar of tripping in punching, does not cement the well.
In the lowered inside injection point backing device of trunk horizontal segment 6 and ignite and start to gasify, gas is discharged by straight well 2；
The lowered inside temperature measuring equipment of two branch levels section 5, channel interior temperature variations is monitored in real time, when temperature is Celsius more than 100
When spending, to bottom injection point backing 3-5 rice.
After trunk coal resources gasify, temperature measuring equipment and injection point backing device are proposed to earth's surface, overhaul gas injection
After point backing device is errorless inside decentralization to two branch levels sections 5, ignites and start to gasify, gas is by reserved side opening 7 by straight well 2
Discharge.
If there are three branches, four branches, it is only necessary to repeat aforesaid operations process.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (6)
- A kind of 1. coal underground gasifying furnace furnace body structure, it is characterised in that including：U-shaped well, at least one branch's inclination section and extremely A few branch levels section；U-shaped well construction is divided into straight well section, docking straight well section, trunk horizontal segment and trunk inclination section；It is each described Branch's inclination section is connected with straight well section, and each branch levels section is connected with each branch's inclination section, each branch levels Section does not connect with the U-shaped well docking straight well section, and the U-shaped well wellhole section is circle.
- 2. coal underground gasifying furnace furnace body structure according to claim 1, it is characterised in that including at least one reserved side Hole, each reserved side opening are opened in the docking straight well section side wall of U-shaped well, and the reserved side opening is used to connect the branch levels Section.
- 3. coal underground gasifying furnace furnace body structure according to claim 2, it is characterised in that the reserved side opening is away from described Branch levels section horizontal range 2m.
- 4. coal underground gasifying furnace furnace body structure according to claim 1, it is characterised in that the well straight well section of U-shaped well, right Connect straight well section and trunk inclination section is provided with petroleum casing pipe and cemented the well, trunk horizontal segment is provided with coal seam branch pillar.
- 5. coal underground gasifying furnace furnace body structure according to claim 1, it is characterised in that be provided with branch's inclination section Petroleum casing pipe, branch levels section are provided with coal seam branch pillar.
- 6. coal underground gasifying furnace furnace body structure according to claim 1, it is characterised in that the trunk water of the U-shaped well Flat section is arranged in bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720709384.3U CN206874267U (en) | 2017-06-16 | 2017-06-16 | A kind of coal underground gasifying furnace furnace body structure |
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| CN201720709384.3U CN206874267U (en) | 2017-06-16 | 2017-06-16 | A kind of coal underground gasifying furnace furnace body structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083948A (en) * | 2017-06-16 | 2017-08-22 | 新疆国利衡清洁能源科技有限公司 | A kind of coal underground gasifying furnace furnace body structure and construction method |
| CN108894765A (en) * | 2018-08-24 | 2018-11-27 | 广州海洋地质调查局 | The major-minor well construction and its method of deep water shallow layer gas hydrate exploitation |
| CN113482588A (en) * | 2021-07-12 | 2021-10-08 | 四川盐业地质钻井大队 | Double-layer simultaneous mining method for salt mine |
-
2017
- 2017-06-16 CN CN201720709384.3U patent/CN206874267U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083948A (en) * | 2017-06-16 | 2017-08-22 | 新疆国利衡清洁能源科技有限公司 | A kind of coal underground gasifying furnace furnace body structure and construction method |
| CN108894765A (en) * | 2018-08-24 | 2018-11-27 | 广州海洋地质调查局 | The major-minor well construction and its method of deep water shallow layer gas hydrate exploitation |
| CN113482588A (en) * | 2021-07-12 | 2021-10-08 | 四川盐业地质钻井大队 | Double-layer simultaneous mining method for salt mine |
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