CN108005617A - Individual well exploits closed recharge system - Google Patents
Individual well exploits closed recharge system Download PDFInfo
- Publication number
- CN108005617A CN108005617A CN201810035780.1A CN201810035780A CN108005617A CN 108005617 A CN108005617 A CN 108005617A CN 201810035780 A CN201810035780 A CN 201810035780A CN 108005617 A CN108005617 A CN 108005617A
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- Prior art keywords
- recharge
- water
- underground heat
- casing
- layer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 141
- 238000005553 drilling Methods 0.000 claims abstract description 54
- 230000004888 barrier function Effects 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 3
- 239000003673 groundwater Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract 1
- 238000010009 beating Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The present invention provides a kind of individual well to exploit closed recharge system, belong to geothermal well applied technical field, including excavating the underground heat pit shaft below earth's surface and the casing in the underground heat pit shaft, the drilling rod being used for layer recharge is equipped with underground heat pit shaft, underground heat pit shaft is from top to bottom divided into three layers from earth's surface, the recharge layer respectively for geothermal water reinjection, the water barrier for separating GEOTHERMAL WATER and the mined bed for exploiting GEOTHERMAL WATER.Individual well provided by the invention exploits closed recharge system, GEOTHERMAL WATER is exploited using individual well, GEOTHERMAL WATER and recharge water carry out in the same stratum of underground heat pit shaft, GEOTHERMAL WATER and recharge water are separated using water barrier, it can meet that geothermal energy exploitation requires using individual well exploitation, inverted well need not be beaten again, have and improve well-digging speed, do not influence groundwater occurrence, the individual well technique effect low with the filling of layer pumping, cost.
Description
Technical field
The invention belongs to geothermal well applied technical field, is to be related to a kind of individual well to exploit closed recharge more specifically
System.
Background technology
Energy crisis and environmental pollution have become current an important factor for threatening human survival, how to solve the problems, such as this,
It is the common research topic of the mankind.In this background, using it is environmentally friendly and it is energy saving be main feature using water as the ground of exchange media
Lower water evaluation and exploration technology, geothermal well technology have obtained extensive utilization in factory, school, hospital etc., and are mostly using geothermal well
Twin-well or more wells, which are taken out, to be filled, i.e., a well draws water, another or multiple well recharges, and not only drilling hole number is more for this technology, Er Qierong
The distribution of malleable underground water, longtime running can reduce the level of ground water near pumped well, the problems such as ground settlement occur, into
And the basis of crisis surrounding building.
The content of the invention
It is an object of the invention to provide a kind of individual well to exploit closed recharge system, existing in the prior art to solve
Geothermal well with twin-well take out fill, influence groundwater occurrence, technical problem of high cost, drilling well is long in time limit, have improve well-digging speed,
Groundwater occurrence is not influenced, individual well is taken out with layer and fills, reduces the characteristics of cost.
To achieve the above object, the technical solution adopted by the present invention is：A kind of individual well is provided and exploits closed recharge system,
If fix the underground heat pit shaft including excavating underground heat pit shaft below earth's surface and being used in the underground heat pit shaft
Dry section casing, is equipped with the drilling rod being used for layer recharge in the underground heat pit shaft, and the drilling rod is divided into the first drilling rod and with described the
Second drilling rod of one drilling rod connection, the underground heat pit shaft are from top to bottom divided into three layers from earth's surface, are respectively recharge layer, water proof
Layer and mined bed；
The recharge layer includes the recharge layer casing for recharge for being arranged on the underground heat upper wellbore, the recharge layer
Casing is divided into the epimere of recharge layer casing and the hypomere of recharge layer casing, is uniformly provided with the recharge layer casing hypomere some
A recharge hole passed through for recharge water；
The water barrier include mutually be socketed with the recharge layer sleeve bottom water barrier casing, be fixed on the water proof
Layer internal surface of sleeve pipe on card convex, be fixed on the second drilling rod bottom be used for separate GEOTHERMAL WATER water stop and be arranged on institute
Several sealing rings between card convex and the water stop are stated, the water barrier is used for the GEOTHERMAL WATER of the underground heat wellbore bottom
Keep apart with recharge water；
The mined bed includes mined bed casing, the mined bed casing being mutually socketed with the water barrier sleeve bottom
On be uniformly provided with several and be used to extract the suction eye of GEOTHERMAL WATER, the mined bed is used for suction pump and extracts in the underground heat pit shaft
Water.
Further, second drilling rod passes through the recharge layer, and bottom outside and the card convex of the water barrier
Connection, gap of the recharge water between the recharge layer casing and first drilling rod are entered in the recharge layer, describedly
Hot water is extracted in earth's surface from the bottom of second drilling rod, the water barrier be arranged on second drilling-rod external wall with it is described
Between water barrier internal surface of sleeve pipe, for stopping the GEOTHERMAL WATER extracted out from the underground heat pit shaft.
Further, the pump house that draws water for being used for extracting GEOTHERMAL WATER is equipped between first drilling rod and second drilling rod.
Further, a diameter of 89mm of first drilling rod, a diameter of 127mm of second drilling rod.
Further, a diameter of 339.7mm of epimere of the recharge layer casing, a diameter of 177.8mm of hypomere；The water proof
The diameter of layer casing and the mined bed casing is 177.8mm.
Further, the hypomere of the recharge layer, the water barrier and the mined bed are arranged in the shop below earth's surface
Make pottery in stratum, the water source temperature on the Guantao stratum is 50-55 DEG C.
Further, the side in the recharge hole connects the gap between the recharge layer casing and second drilling rod,
Opposite side is extended in the surrounding formation of the recharge layer.
Further, the side of the suction eye connects the mined bed inside pipe casing, and opposite side extends to the exploitation
In the surrounding formation of layer.
Further, the sealing ring is O-ring seal, is fixed between the water stop and the card convex.
Further, the depth of the underground heat pit shaft is 1230-1240m, and the water barrier is located in the underground heat pit shaft
Depth be 1100-1200m.
The beneficial effect that individual well provided by the invention exploits closed recharge system is：Compared with prior art, this hair
Bright individual well exploits closed recharge system, exploits GEOTHERMAL WATER using individual well, GEOTHERMAL WATER and recharge water are in the same of underground heat pit shaft
Carrying out in stratum, separated GEOTHERMAL WATER and recharge water using water barrier, the lower part of water barrier is used to draw water, and top is used for recharge,
It can meet that geothermal energy exploitation requires using individual well exploitation, without beating inverted well again, solve geothermal well twin-well and take out filling, drilling well number
Amount it is more, influence groundwater occurrence, there is the technical problem of ground settlement, have improve dig a well speed, do not influence groundwater occurrence,
Individual well takes out the technique effect for filling, reducing cost with layer.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the profile that individual well provided in an embodiment of the present invention exploits closed recharge system.
Wherein, each reference numeral in figure：1- earth's surfaces；2- casings；21- recharge layer casings；211- recharges hole；22- water barriers
Casing；23- mined bed casings；231- suction eyes；3- recharge layers；4- water barriers；41- water stops；42- card convexs；43- sealing rings；
5- mined beds；6- drilling rods；The first drilling rods of 61-；The second drilling rods of 62-；7- earth's surfaces；8- Guantaos stratum；9- pump houses.
The flow direction of GEOTHERMAL WATER is represented wherein in figure to upward arrow, down arrow represents the flowing side of recharge water in figure
To.
Embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", " on ", " under ", "front", "rear", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position
System, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple ", " several " be meant that two or
Two or more, unless otherwise specifically defined.
Referring to Fig. 1, existing illustrate the closed recharge system of individual well provided by the invention exploitation.The individual well exploitation
Closed recharge system, including excavate solid in underground heat pit shaft 1 of the earth's surface below 7 and being used in the underground heat pit shaft 1
Some sections of casings 2 of the fixed underground heat pit shaft 1, the underground heat pit shaft 1 is interior to be equipped with the drilling rod 6 being used for layer recharge, the drilling rod 6
Be divided into the first drilling rod 61 and the second drilling rod 62 being connected with first drilling rod 61, the underground heat pit shaft 1 from earth's surface 7 from top to bottom
Three layers are divided into, is respectively recharge layer 3, water barrier 4 and mined bed 5；
Recharge layer casing 21 for recharge of the recharge layer 3 including being arranged on 1 top of underground heat pit shaft, described time
The hypomere of epimere and recharge layer casing 21 that layer casing 21 divides for recharge layer casing 21 is filled, on 21 hypomere of recharge layer casing
It is uniformly provided with several and is used for the recharge hole 211 that recharge water passes through；
The water barrier 4 include mutually be socketed with 21 bottom of recharge layer casing water barrier casing 22, be fixed on institute
State the card convex 42 on 22 inner wall of water barrier casing, be fixed on the water stop for being used to separate GEOTHERMAL WATER of 62 bottom of the second drilling rod
41 and several sealing rings 43 for being arranged between the card convex 42 and the water stop 41, the water barrier 4 be used for will described in
The GEOTHERMAL WATER of 1 bottom of underground heat pit shaft is kept apart with recharge water；
The mined bed 5 include mutually be socketed with 22 bottom of water barrier casing mined bed casing 23, the exploitation
Several suction eyes 231 for being used to extract GEOTHERMAL WATER are uniformly provided with layer casing 23, the mined bed 5 is used for suction pump and extracts institute
State the water in underground heat pit shaft 1.
Individual well provided by the invention exploits closed recharge system, compared with prior art, GEOTHERMAL WATER is exploited using individual well,
GEOTHERMAL WATER and recharge water carry out in the same stratum of underground heat pit shaft 1, are separated GEOTHERMAL WATER and recharge water using water barrier 4, every
The lower part of water layer 4 is used to draw water, and top is used for recharge, can meet that geothermal energy exploitation requires using individual well exploitation, without beating again
Inverted well, solve geothermal well twin-well take out fill, drilling hole number it is more, influence groundwater occurrence, there is the technical problem of ground settlement,
With improve well-digging speed, do not influence groundwater occurrence, individual well is taken out with layer and fills, reduces the technique effect of cost.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Mode is applied, second drilling rod 62 passes through the recharge layer 3, and bottom outside is connected with the card convex 42 of the water barrier 4,
Recharge water is entered in the recharge layer 3 from the gap between the recharge layer casing 21 and first drilling rod 61, describedly
Hot water is extracted in earth's surface 7 from the bottom of second drilling rod 62, and the water barrier 4 is arranged on 62 outer wall of the second drilling rod
Between 22 inner wall of water barrier casing, for stopping the GEOTHERMAL WATER extracted out from the underground heat pit shaft 1.
The installation casing 2 after geothermal well pit shaft 1 punches, it is necessary in underground heat pit shaft 1, then 62 He of the second drilling rod is installed
First drilling rod 61, then installs the pump house 9 that draws water for extracting the GEOTHERMAL WATER in underground heat pit shaft 1 again, and casing 2 sequentially passes through recharge
Layer 3, water barrier 4 and mined bed 5, the lower part of casing 2 are extended in Guantao stratum 8 of the earth's surface below 7, and casing 2 will from Guantao
Underground heat water source is extracted in layer 8.Water barrier 4 separates the GEOTHERMAL WATER in underground heat pit shaft 1 and recharge water, realizes on Guantao stratum 8
In be carried out at the same time and draw water and recharge, without beating inverted well again, reduce shaft building cost.
Water stop 41 in the water barrier 4 is loop configuration, is fixed on the outer wall of the water barrier casing 22, can be incited somebody to action
The underground heat water source in recharge water and mined bed 5 in recharge layer 3 keeps apart, and the using effect that influences each other is avoided, in same underground heat
The purpose of same layer recharge, and the GEOTHERMAL WATER satisfactory quality extracted out are realized in pit shaft 1.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Mode is applied, the pump house 9 that draws water for being used for extracting GEOTHERMAL WATER is equipped between first drilling rod 61 and second drilling rod 62.Pump house 9
The upper end of the second drilling rod 62 is arranged on, for storing suction pump, beneficial to management.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Apply mode, a diameter of 89mm of first drilling rod 61, a diameter of 127mm of second drilling rod 62.The recharge layer casing
The 21 a diameter of 339.7mm of epimere, a diameter of 177.8mm of hypomere；The water barrier casing 22 and the mined bed casing 23
Diameter is 177.8mm.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Mode is applied, hypomere, the water barrier 4 and the mined bed 5 of the recharge layer 3 are arranged in Guantao stratum 8 of the earth's surface below 7
In, the water source temperature on the Guantao stratum 8 is 50-55 DEG C.Water source temperature height, energy in Guantao stratum 8 is big, mineral substances of water
The non-CL-Na types of type are learned, salinity is generally 2g/L, is adapted to the heat supply application of large-scale industry, can utilize industrial heat pump skill
Art fully improves system load ability and heat utilization efficiency.Underground heat pit shaft 1 is extended in Guantao stratum 8, and 8 water temperature of Guantao stratum is high,
Calorific value is high, is the preferred stratum at geothermal well individual well exploitation underground heat water source.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Mode is applied, the side in the recharge hole 211 connects the gap between the recharge layer casing 21 and second drilling rod 62, another
Side is extended in the surrounding formation of the recharge layer 3.The side of the suction eye 231 is connected inside the mined bed casing 23,
Opposite side is extended in the surrounding formation of the mined bed 5.Using recharge hole 211 recharge water can be realized to Guantao stratum 8
In flowing, by the abundant recharge of used recharge water, the not utilization of waste water resource, takes out compared to twin-well and fills, without beating again
Inverted well, recharge effect are good.Suction eye 231 leads in Guantao stratum 8, for extracting the GEOTHERMAL WATER in Guantao stratum 8.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Mode is applied, the sealing ring 43 is O-ring seal, is fixed between the water stop 41 and the card convex 42.The sealing ring
43 installation number is three, plays the role of three seals.
Further, referring to Fig. 1, exploiting a kind of specific real of closed recharge system as individual well provided by the invention
Mode is applied, the depth of the underground heat pit shaft 1 is 1230-1240m, and the depth that the water barrier 4 is located in the underground heat pit shaft 1 is
1100-1200m。
To sum up, closed recharge system is exploited by using individual well, is that the same layer that GEOTHERMAL WATER can be achieved draws water using individual well
And recharge, it will be drawn water using water barrier and be separated with recharge, without beating inverted well again, mined bed is used to extract the ground in underground heat pit shaft
Hot water, recharge layer are used to used GEOTHERMAL WATER carrying out recharge, take out and fill compared to twin-well, advantage is reduction of cost, no
Groundwater occurrence is influenced, and the water quality extracted out meets the requirements.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. individual well exploits closed recharge system, including excavate underground heat pit shaft below earth's surface and installed in the underground heat pit shaft
In be used for fix some sections of casings of the underground heat pit shaft, it is characterised in that：It is equipped with the underground heat pit shaft and is used to return with layer
The drilling rod of filling, the drilling rod are divided into the first drilling rod and the second drilling rod being connected with first drilling rod, and the underground heat pit shaft is from ground
Table is from top to bottom divided into three layers, is respectively recharge layer, water barrier and mined bed；
The recharge layer includes the recharge layer casing for recharge for being arranged on the underground heat upper wellbore, the recharge layer casing
It is divided into the epimere of recharge layer casing and the hypomere of recharge layer casing, several use is uniformly provided with the recharge layer casing hypomere
In the recharge hole that recharge water passes through；
The water barrier include mutually be socketed with the recharge layer sleeve bottom water barrier casing, be fixed on the water barrier set
Card convex on inside pipe wall, be fixed on being used to separate the water stop of GEOTHERMAL WATER and being arranged on the card for the second drilling rod bottom
Convex several sealing rings between the water stop, the water barrier are used for the GEOTHERMAL WATER of the underground heat wellbore bottom with returning
Pour water and keep apart；
Mined bed casing that the mined bed includes mutually being socketed with the water barrier sleeve bottom, on the mined bed casing
The even suction eye for being used to extract GEOTHERMAL WATER equipped with several, the mined bed are used for suction pump and extract in the underground heat pit shaft
Water.
2. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：Second drilling rod is described in
Recharge layer, and bottom outside is connected with the card convex of the water barrier, recharge water is from the recharge layer casing and described first
Gap between drilling rod is entered in the recharge layer, and the GEOTHERMAL WATER is extracted to earth's surface from the bottom of second drilling rod
On, the water barrier is arranged between second drilling-rod external wall and the water barrier internal surface of sleeve pipe, for stopping from described
The GEOTHERMAL WATER extracted out in hot well cylinder.
3. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：First drilling rod and described the
The pump house that draws water for being used for extracting GEOTHERMAL WATER is equipped between two drilling rods.
4. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：First drilling rod it is a diameter of
89mm, a diameter of 127mm of second drilling rod.
5. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：The epimere of the recharge layer casing
A diameter of 339.7mm, a diameter of 177.8mm of hypomere；The diameter of the water barrier casing and the mined bed casing is
177.8mm。
6. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：The hypomere of the recharge layer, institute
State water barrier and the mined bed is arranged in the Guantao stratum below earth's surface, the water source temperature on the Guantao stratum is 50-
55℃。
7. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：The side connection in the recharge hole
Gap between the recharge layer casing and second drilling rod, opposite side are extended in the surrounding formation of the recharge layer.
8. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：The side connection of the suction eye
The mined bed inside pipe casing, opposite side are extended in the surrounding formation of the mined bed.
9. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：The sealing ring is O-shaped sealing
Circle, is fixed between the water stop and the card convex.
10. individual well as claimed in claim 1 exploits closed recharge system, it is characterised in that：The depth of the underground heat pit shaft
For 1230-1240m, the depth that the water barrier is located in the underground heat pit shaft is 1100-1200m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035780.1A CN108005617A (en) | 2018-01-15 | 2018-01-15 | Individual well exploits closed recharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810035780.1A CN108005617A (en) | 2018-01-15 | 2018-01-15 | Individual well exploits closed recharge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005617A true CN108005617A (en) | 2018-05-08 |
Family
ID=62050648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810035780.1A Pending CN108005617A (en) | 2018-01-15 | 2018-01-15 | Individual well exploits closed recharge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005617A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186112A (en) * | 2018-09-26 | 2019-01-11 | 张雨 | A kind of deep layer hot dry rock, mid-deep strata geothermal source cumulative heat-exchanger rig |
| CN111412673A (en) * | 2020-04-30 | 2020-07-14 | 中国石油天然气股份有限公司大港油田分公司 | Single-well irrigation and production heat extraction system |
| CN113531929A (en) * | 2021-07-29 | 2021-10-22 | 青海省环境地质勘查局 | Geothermal single-well pressurizing and recharging device and method |
| CN114659295A (en) * | 2022-05-05 | 2022-06-24 | 中国科学院电工研究所 | Comprehensive energy system combining gravity energy storage with heat pump heat supply |
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| US4060988A (en) * | 1975-04-21 | 1977-12-06 | Texaco Inc. | Process for heating a fluid in a geothermal formation |
| CN103925739A (en) * | 2013-01-10 | 2014-07-16 | 江苏望远节能科技开发有限公司 | Closed single-tube vertical borehole ground-coupled heat pump system |
| CN105863569A (en) * | 2016-04-14 | 2016-08-17 | 中国石油大学(华东) | Single-well fracture gravity self-circulation dry-hot-rock geotherm mining method |
| CN105909214A (en) * | 2016-04-14 | 2016-08-31 | 中国石油大学(华东) | Method for exploiting compact dry heat rock geothermal energy by utilizing long horizontal well self-circulation structure |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4060988A (en) * | 1975-04-21 | 1977-12-06 | Texaco Inc. | Process for heating a fluid in a geothermal formation |
| CN103925739A (en) * | 2013-01-10 | 2014-07-16 | 江苏望远节能科技开发有限公司 | Closed single-tube vertical borehole ground-coupled heat pump system |
| CN105863569A (en) * | 2016-04-14 | 2016-08-17 | 中国石油大学(华东) | Single-well fracture gravity self-circulation dry-hot-rock geotherm mining method |
| CN105909214A (en) * | 2016-04-14 | 2016-08-31 | 中国石油大学(华东) | Method for exploiting compact dry heat rock geothermal energy by utilizing long horizontal well self-circulation structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186112A (en) * | 2018-09-26 | 2019-01-11 | 张雨 | A kind of deep layer hot dry rock, mid-deep strata geothermal source cumulative heat-exchanger rig |
| CN109186112B (en) * | 2018-09-26 | 2024-02-13 | 泛亚绿能(陕西)能源科技有限公司 | Deep dry-hot rock and medium-deep geothermal source energy-gathering heat exchange device |
| CN111412673A (en) * | 2020-04-30 | 2020-07-14 | 中国石油天然气股份有限公司大港油田分公司 | Single-well irrigation and production heat extraction system |
| CN113531929A (en) * | 2021-07-29 | 2021-10-22 | 青海省环境地质勘查局 | Geothermal single-well pressurizing and recharging device and method |
| CN114659295A (en) * | 2022-05-05 | 2022-06-24 | 中国科学院电工研究所 | Comprehensive energy system combining gravity energy storage with heat pump heat supply |
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