CN109721303A - A kind of well cementing material and geothermal well of mid-deep strata geothermal well - Google Patents
A kind of well cementing material and geothermal well of mid-deep strata geothermal well Download PDFInfo
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- CN109721303A CN109721303A CN201910003586.XA CN201910003586A CN109721303A CN 109721303 A CN109721303 A CN 109721303A CN 201910003586 A CN201910003586 A CN 201910003586A CN 109721303 A CN109721303 A CN 109721303A
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- well
- cementing material
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- geothermal well
- cement
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 239000000843 powder Substances 0.000 claims abstract description 55
- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 239000004568 cement Substances 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000011398 Portland cement Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000003469 silicate cement Substances 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to the well cementing material and geothermal well of a kind of mid-deep strata geothermal well, the well cementing material includes cement and metal powder.The thermal coefficient of well cementing material of the invention is 3-10 times of cement, can effectively improve the utilization efficiency of geothermal energy.
Description
Technical field
The present invention relates to geothermal well fields, and in particular to a kind of well cementing material and geothermal well of mid-deep strata geothermal well.
Background technique
Geothermal energy as a kind of renewable energy, have be distributed it is wide, at low cost, be easy to exploit, be clean and can direct benefit
The advantages that using.The utilization for wideling popularize geothermal energy is resource-effective and environmental protection effective measures, is to realize that human society can
The approach of sustainable development.Currently, geothermal energy utilization technology develops constantly, becomes building heating and is preferably selected with what is freezed.
The well cementing material of " heat is taken not fetch water " mid-deep strata geothermal well, generally cement, the thermal coefficient of cement are generally
0.19~0.65W/m 〃 K, affects the utilization efficiency of geothermal energy.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of consolidating for mid-deep strata geothermal well
Well material and geothermal well.
The technical scheme to solve the above technical problems is that a kind of well cementing material of mid-deep strata geothermal well, including
Cement and metal powder.
The beneficial effects of the present invention are: the thermal coefficient of well cementing material of the invention is 3-10 times of cement, can effectively mention
The utilization efficiency of high geothermal energy.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the weight ratio of the cement is 30%-90%, and the weight ratio of the metal powder is 10%-70%.
Beneficial effect using above-mentioned further scheme is: it is effectively limited by the ratio to cement and metal powder,
Reservoir heat transfer range can effectively be increased, greatly increase the utilization efficiency of geothermal energy.
Further, the metal powder is one or more of iron powder, aluminium powder, copper powder, comminuted steel shot.
Beneficial effect using above-mentioned further scheme is: by metal powder using one kind of iron powder, aluminium powder, copper powder or comminuted steel shot
Or it is several, it can effectively improve the thermal coefficient of well cementing material.
Further, the mesh number of the metal powder is 200-800 mesh.
Using the beneficial effect of above-mentioned further scheme is: the mesh number of metal powder can make metal powder and water for 200-800 mesh
Mud is effectively mixed, and keeps the fixed effect of cement more preferable.
Further, the cement is 425 or 325 portland cements.
Beneficial effect using above-mentioned further scheme is: using portland cement, can effectively improve metal powder and cement
Cementation.
A kind of well cementing material of mid-deep strata geothermal well, including 325 portland cements and iron powder.
The beneficial effects of the present invention are: the thermal coefficient of well cementing material of the invention is 3-10 times of cement, can effectively mention
The utilization efficiency of high geothermal energy.
Further, the mesh number of the iron powder is 500 mesh.
Further, the weight ratio of 325 portland cement is 70%, and the weight ratio of the iron powder is 30%.
A kind of geothermal well, including geothermal well ontology, casing and heat-conducting layer, described sleeve pipe are arranged in the geothermal well ontology
In, one layer of heat-conducting layer is equipped between described sleeve pipe lateral wall and the geothermal well ontology inner sidewall, described in the heat-conducting layer uses
Well cementing material be made.
The beneficial effects of the present invention are: geothermal well of the invention, can effectively improve the utilization efficiency of geothermal energy.
Further, several horizontally disposed perforations have been penetrated on the inner sidewall of the geothermal well ontology, have been filled in the perforation
There is the heat-conducting layer.
Beneficial effect using above-mentioned further scheme is: substantially increasing the heating conduction of well cementing material compared with Neng Gouyou
Effect improves the utilization efficiency of geothermal energy.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1
A kind of well cementing material of mid-deep strata geothermal well of the present embodiment, including cement and metal powder.The well cementation of the present embodiment
The thermal coefficient of material is 3-10 times of cement, can effectively improve the utilization efficiency of geothermal energy.
The weight ratio of the embodiment of the present invention cement is 30%-90%, and the weight ratio of the metal powder is 10%-70%.
It is effectively limited by the ratio to cement and metal powder, can effectively increase reservoir heat transfer range, greatly mention
The high utilization efficiency of geothermal energy.
The embodiment of the present invention metal powder is one or more of iron powder, aluminium powder, copper powder, comminuted steel shot.Metal powder is used
The one or more of iron powder, aluminium powder, copper powder or comminuted steel shot can effectively improve the thermal coefficient of well cementing material.
The mesh number of the embodiment of the present invention metal powder is 200-800 mesh.The mesh number of metal powder is 200-800 mesh, can make gold
Belong to powder effectively to be mixed with cement, keeps the fixed effect of cement more preferable.
The embodiment of the present invention cement is 425 or 325 portland cements.Using portland cement, metal can be effectively improved
The cementation of powder and cement.
Wherein, the specific embodiment of the well cementing material is as follows:
Embodiment one: the well cementing material includes the cement of 3 parts by weight and the metal powder of 7 parts by weight, the specific water
The weight ratio of mud is 30%, and the weight ratio of metal powder is 70%, after cement and metal powder are mixed, be uniformly mixed i.e. with water
It can.
Wherein, the metal powder is that the one or more of iron powder, aluminium powder, copper powder, comminuted steel shot etc. are mixed.The mesh of metal powder
Number is 200 mesh.The cement is 425 or 325 portland cements.The thermally conductive well cementing material of present embodiment is the 3-10 of cement
Times, it can effectively improve the utilization efficiency of geothermal energy.
Embodiment two: the well cementing material includes the cement of 6 parts by weight and the metal powder of 4 parts by weight, the specific water
The weight ratio of mud is 60%, and the weight ratio of metal powder is 40%, after cement and metal powder are mixed, be uniformly mixed i.e. with water
It can.
Wherein, the metal powder is that the one or more of iron powder, aluminium powder, copper powder, comminuted steel shot etc. are mixed.The mesh of metal powder
Number is 500 mesh.The cement is 425 or 325 portland cements.The thermally conductive well cementing material of present embodiment is the 3-10 of cement
Times, it can effectively improve the utilization efficiency of geothermal energy.
Embodiment three: the well cementing material includes the cement of 9 parts by weight and the metal powder of 1 parts by weight, the specific water
The weight ratio of mud is 90%, and the weight ratio of metal powder is 10%, after cement and metal powder are mixed, be uniformly mixed i.e. with water
It can.
Wherein, the metal powder is that the one or more of iron powder, aluminium powder, copper powder, comminuted steel shot etc. are mixed.The mesh of metal powder
Number is 800 mesh.The cement is 425 or 325 portland cements.The thermally conductive well cementing material of present embodiment is the 3-10 of cement
Times, it can effectively improve the utilization efficiency of geothermal energy.
Embodiment four: the well cementing material includes the cement of 4.5 parts by weight and the metal powder of 5.5 parts by weight, specific institute
The weight ratio for stating cement is 45%, and the weight ratio of metal powder is 55%, after cement and metal powder are mixed, mix with water
It is even.
Wherein, the metal powder is that the one or more of iron powder, aluminium powder, copper powder, comminuted steel shot etc. are mixed, such as can be selected
Iron powder and aluminium powder are mixed with any than mixing, or selection copper powder and comminuted steel shot with any ratio, or select aluminium powder and comminuted steel shot arbitrarily to compare
Mixing.The mesh number of metal powder is 450 mesh.The cement is 425 or 325 portland cements.The thermally conductive well cementation material of present embodiment
Material is 3-10 times of cement, can effectively improve the utilization efficiency of geothermal energy.
One preferred embodiment of the present embodiment is a kind of well cementing material of mid-deep strata geothermal well, including 325 silicate cements
Mud and iron powder.The thermal coefficient of the well cementing material of the present embodiment is 3-10 times of cement, and can effectively improve geothermal energy utilizes effect
Rate.The mesh number of the iron powder is 500 mesh.The weight ratio of 325 portland cement is 70%, and the weight ratio of the iron powder is
30%.
Embodiment 2
A kind of geothermal well of the present embodiment, including geothermal well ontology, casing and heat-conducting layer, described sleeve pipe are arranged describedly
In hot well ontology, one layer of heat-conducting layer, the heat-conducting layer are equipped between described sleeve pipe lateral wall and the geothermal well ontology inner sidewall
It is made of the well cementing material.The geothermal well of the present embodiment can effectively improve the utilization efficiency of geothermal energy.
Several horizontally disposed perforations have been penetrated on the inner sidewall of the embodiment of the present invention geothermal well ontology, have been filled out in the perforation
Filled with the heat-conducting layer.Wherein, the perforation is provided on geothermal well ontology along the radial direction of the geothermal well ontology.It greatly improves
The heating conduction of well cementing material is compared with can effectively improve the utilization efficiency of geothermal energy.A kind of geothermal well of the present embodiment uses
Above-mentioned construction technology is made.The geothermal well of the present embodiment, the radius of influence can reach 30-50 meters, increase reservoir heat transfer
Range effectively improves the utilization efficiency of geothermal energy.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of well cementing material of mid-deep strata geothermal well, which is characterized in that including cement and metal powder.
2. a kind of well cementing material of mid-deep strata geothermal well according to claim 1, which is characterized in that the weight ratio of the cement
For 30%-90%, the weight ratio of the metal powder is 10%-70%.
3. a kind of well cementing material of mid-deep strata geothermal well according to claim 1, which is characterized in that the metal powder is iron
One or more of powder, aluminium powder, copper powder, comminuted steel shot.
4. a kind of well cementing material of mid-deep strata geothermal well according to claim 1, which is characterized in that the mesh number of the metal powder
For 200-800 mesh.
5. a kind of well cementing material of mid-deep strata geothermal well according to claim 1, which is characterized in that the cement be 425 or
325 portland cements.
6. a kind of well cementing material of mid-deep strata geothermal well, which is characterized in that including 325 portland cements and iron powder.
7. a kind of well cementing material of mid-deep strata geothermal well according to claim 6, which is characterized in that the mesh number of the iron powder is
500 mesh.
8. a kind of well cementing material of mid-deep strata geothermal well according to claim 6, which is characterized in that 325 silicate cement
The weight ratio of mud is 70%, and the weight ratio of the iron powder is 30%.
9. a kind of geothermal well, which is characterized in that including geothermal well ontology, casing and heat-conducting layer, described sleeve pipe is arranged describedly
In hot well ontology, one layer of heat-conducting layer, the heat-conducting layer are equipped between described sleeve pipe lateral wall and the geothermal well ontology inner sidewall
It is made of the described in any item well cementing materials of claim 1 to 8.
10. geothermal well according to claim 9, which is characterized in that if having penetrated solid carbon dioxide on the inner sidewall of the geothermal well ontology
The perforation that plain cloth is set is filled with the heat-conducting layer in the perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003586.XA CN109721303A (en) | 2019-01-03 | 2019-01-03 | A kind of well cementing material and geothermal well of mid-deep strata geothermal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003586.XA CN109721303A (en) | 2019-01-03 | 2019-01-03 | A kind of well cementing material and geothermal well of mid-deep strata geothermal well |
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| Publication Number | Publication Date |
|---|---|
| CN109721303A true CN109721303A (en) | 2019-05-07 |
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ID=66299557
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| CN201910003586.XA Pending CN109721303A (en) | 2019-01-03 | 2019-01-03 | A kind of well cementing material and geothermal well of mid-deep strata geothermal well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386780A (en) * | 2019-07-24 | 2019-10-29 | 中国煤炭地质总局水文地质局 | A kind of well cementing material of mid-deep strata geothermal well and preparation method thereof and geothermal well |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120073813A1 (en) * | 2010-09-28 | 2012-03-29 | Clearwater International, Llc | Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids |
| CN106839478A (en) * | 2017-01-23 | 2017-06-13 | 西安浩沃新能源有限公司 | A kind of method of construction of deep geothermal heat heat transfer root system |
| CN107676996A (en) * | 2017-09-29 | 2018-02-09 | 上海中金能源投资有限公司 | Underground heat bore hole heat exchanger and geothermal well well shaft fixing technology |
-
2019
- 2019-01-03 CN CN201910003586.XA patent/CN109721303A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120073813A1 (en) * | 2010-09-28 | 2012-03-29 | Clearwater International, Llc | Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids |
| CN106839478A (en) * | 2017-01-23 | 2017-06-13 | 西安浩沃新能源有限公司 | A kind of method of construction of deep geothermal heat heat transfer root system |
| CN107676996A (en) * | 2017-09-29 | 2018-02-09 | 上海中金能源投资有限公司 | Underground heat bore hole heat exchanger and geothermal well well shaft fixing technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386780A (en) * | 2019-07-24 | 2019-10-29 | 中国煤炭地质总局水文地质局 | A kind of well cementing material of mid-deep strata geothermal well and preparation method thereof and geothermal well |
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Application publication date: 20190507 |
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