CN207033403U - One kind only takes hot ground hot hole solid hole plugging device of not fetching water - Google Patents
One kind only takes hot ground hot hole solid hole plugging device of not fetching water Download PDFInfo
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- CN207033403U CN207033403U CN201721029384.5U CN201721029384U CN207033403U CN 207033403 U CN207033403 U CN 207033403U CN 201721029384 U CN201721029384 U CN 201721029384U CN 207033403 U CN207033403 U CN 207033403U
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- hole
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Abstract
The utility model possession thermal technology field, disclose one kind and only take hot ground hot hole solid hole plugging device of not fetching water, be provided with drilling slurry layer, drilling slurry layer is filled in the outside of drilling well inner sleeve, and the upper end of drilling slurry layer is filled with isolation liquid layer；Isolate the upper end of liquid layer filled with the first closure bed of material, block the upper end of the bed of material filled with the second isolation liquid layer；Closure material is high in annular space fullness rate, and cementing flow resistance is small to be not easy to miss；Closure material and bore liquid blending are few；The utility model is applicable the shallow bore hole within 3000m；It is more efficient to smaller annular clearance or the hole of the super large annular space gap technology；Satisfaction only takes heat not fetch water ground hot hole heat supply process itself process requirements, under effective protecting field in 600m the solid hole water shutoff of pressure-bearing drinking water source closure material.
Description
Technical field
The utility model, which belongs to, only takes hot ground hot hole technical field of heat exchange of not fetching water, more particularly to one kind only to take heat not fetch water
Ground hot hole solid hole plugging device.
Background technology
At present, only take heat not fetch water ground hot hole heat supply process drilling deeply in 2100~3000m of underground, only take heat not fetch water ground
Hot hole heat supply process can penetrate above different water levels in boring procedure.And if do not taken effectively closure etc. in boring procedure
Safeguard measure, hot water layer's geothermal water and other corrosivity minerals etc. under pressure, can be influxed along in drilling and drunk
Water layer, the pollution of drinking water is in turn resulted in, for this case, then need research to take science, the closure guarantee of effective solid hole to arrange
Applying ensures underground drinking water will not be polluted and destroyed in boring procedure.
In summary, the problem of prior art is present be：If do not taken the effectively safeguard measure such as closure in boring procedure,
Hot water layer's geothermal water and other corrosivity minerals etc. under pressure, can influx along in drilling and drink water layer, and then
Cause the pollution of drinking water.
The content of the invention
The problem of existing for prior art, the utility model provide one kind and only take hot ground hot hole solid hole closure of not fetching water
Device.
The utility model is achieved in that this only takes hot ground hot hole solid hole plugging device of not fetching water to be provided with drilling slurry
Layer, drilling slurry layer are filled in the outside of drilling well inner sleeve, and the upper end of the drilling slurry layer is filled with the first isolation liquid layer；
The upper end of the first isolation liquid layer is filled with the closure bed of material.
Further, the upper end of the closure bed of material is filled with the second isolation liquid layer.It is described first isolation liquid layer and second every
Chaotropic layer material structures are identical.
The advantages of the utility model and good effect are：Closure material is high in annular space fullness rate, and cementing flow resistance is small not
Easily leakage；Closure material and bore liquid blending are few.It is required that closure material thickening time length and good fluidity.It is applicable shallow within 3000m
Hole.It is more efficient to smaller annular clearance or the hole of the super large annular space gap technology.Compare suitable conduit and sleeve pipe sealing hole.Meet
Only take heat not fetch water ground hot hole heat supply process itself process requirements, under effective protecting field in 600m pressure-bearing drinking water source solid hole envelope
The closure material of water.
Brief description of the drawings
Fig. 1 is the structural representation for only taking hot ground hot hole solid hole plugging device of not fetching water that the utility model embodiment provides
Figure.
In figure：1st, drilling slurry layer；2nd, the first isolation liquid layer；3rd, the bed of material is blocked；4th, the second isolation liquid layer.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows.
Structure of the present utility model is explained in detail below in conjunction with the accompanying drawings.
As shown in figure 1, this only takes hot ground hot hole solid hole plugging device of not fetching water to be provided with drilling slurry layer 1, drilling slurry
Layer 1 is filled in the outside of drilling well inner sleeve, and the upper end of the drilling slurry layer 1 is filled with the first isolation liquid layer 2；
The upper end of the first isolation liquid layer 2 is filled with second filled with the closure bed of material 3, the upper end of the closure bed of material 3
Isolate liquid layer 4.
As preferred embodiment of the present utility model, the depth of described sleeve pipe is 2500m.
The utility model is further described with reference to application method.
First drilling tool is then played out, then bunch tube tripping in is sealed to a certain amount of closure material 3 of the certain position injection in hole with drilling tool
Solid hole technology to be solidified in putty 3.It is required that the thickening time of closure material 3 is longer, and antipollution, stable performance.
Closure material 3 use nontoxic, harmless inorganic material, be prepared under interference-free take thermic boring closure mud jacking required for
Long-time fluidised form press mortar, press mortar is upper flow regime slurry only, is still had during slurry 24h under 50~70 DEG C of environment
There are good mobility, 28d compression strength to be not less than 5MPa, the density of press mortar is 1.30~1.40g/cm3, above and below 24h
Layer density contrast is no more than 0.02g/cm3。
The cement formula of closure material 3：
(1) cement：Strength of cement grade is 42.5.
(2) flyash (FA)：II grade of flyash, 0.045mm sieve apertures screen over-size are 29%.
(3) miberal powder (GGBS)：The S95 level slag micropowders of Hancheng De Long miberal powders Co., Ltd production.
(4) light materials (LA)：Porous ceramic grain, bulk density 512kg/m3.
(4) water reducer (BNS)：Naphthalene series high-efficiency water-reducing agent.
(5) retarder (SG)：Sodium gluconate.
(6) fluid loss agent (FLA)：BXF-200L types.
The material prescription of table 1 and its test result
For only taking heat not fetch water ground hot hole heat supply process feature and requirement to protection of groundwater resource, constructing
Taken in journey closure material 3 solid hole water shutoff technologies and according to this technical characterstic innovate develop it is noiseless under the conditions of underground take
The fluidization of thermic boring long-time blocks press mortar through experiment, and effectively closure can be achieved, reach the requirement and protection of solid hole sealing
Groundwater resources purpose.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (2)
1. one kind only takes hot ground hot hole solid hole plugging device of not fetching water, it is characterised in that described takes hot ground hot hole of not fetching water to consolidate
Hole plugging device is provided with drilling slurry layer, and the drilling slurry layer is filled in the outside of drilling well inner sleeve, the drilling mud
The upper end of pulp layer is filled with the first isolation liquid layer；
The upper end of the first isolation liquid layer is filled with the closure bed of material.
2. as claimed in claim 1 only take hot ground hot hole solid hole plugging device of not fetching water, it is characterised in that the closure bed of material
Upper end filled with second isolation liquid layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029384.5U CN207033403U (en) | 2017-08-17 | 2017-08-17 | One kind only takes hot ground hot hole solid hole plugging device of not fetching water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721029384.5U CN207033403U (en) | 2017-08-17 | 2017-08-17 | One kind only takes hot ground hot hole solid hole plugging device of not fetching water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033403U true CN207033403U (en) | 2018-02-23 |
Family
ID=61487935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721029384.5U Expired - Fee Related CN207033403U (en) | 2017-08-17 | 2017-08-17 | One kind only takes hot ground hot hole solid hole plugging device of not fetching water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207033403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288578A (en) * | 2017-08-17 | 2017-10-24 | 李建峰 | One kind only takes hot ground hot hole solid hole plugging device and the method for not fetching water |
-
2017
- 2017-08-17 CN CN201721029384.5U patent/CN207033403U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288578A (en) * | 2017-08-17 | 2017-10-24 | 李建峰 | One kind only takes hot ground hot hole solid hole plugging device and the method for not fetching water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHAANXI SIJICHUN CLEANING HEAT Co.,Ltd. Assignor: Li Jianfeng Contract record no.: X2020980003800 Denomination of utility model: Sealing and blocking device and method for geothermal holes only extracting heat rather than water Granted publication date: 20180223 License type: Common License Record date: 20200706 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |