CN104265242B - The ground thermal extraction method of geothermal well - Google Patents
The ground thermal extraction method of geothermal well Download PDFInfo
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- CN104265242B CN104265242B CN201410388987.9A CN201410388987A CN104265242B CN 104265242 B CN104265242 B CN 104265242B CN 201410388987 A CN201410388987 A CN 201410388987A CN 104265242 B CN104265242 B CN 104265242B
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Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery 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 is the ground thermal extraction method of a kind of geothermal well, is characterized in: step be geology physical prospecting, wellbore construction, measurement well parameter, the examination water that draws water, ask products, ask temperature, determine completion mode and under enter sealing sleeve pipe, water content is conventional well or rich in the well that well, hot water temperature are normal temperature or low temperature disposal, to lean well or low water well and can not water lift utilization, the temperature of well be normal temperature, high temperature or a kind of disposal of low temperature；Instlated tubular used includes that the two ends mouth of pipe of inner tube, outer tube and heat-barrier material, said inner tube and outer tube seals to be connected respectively and forms lacuna, filling with insulation material in lacuna, in being placed in well and be connected；Used by take thermal include closed sleeve pipe, high pressure centrifugal pump and instlated tubular, described closed sleeve pipe be one end closure, the other end arranges input hole and is tightly connected with high pressure centrifugal pump；Instlated tubular be placed in closed sleeve pipe and seal be connected be placed on well in and be connected.
Description
Technical field
The present invention relates to extract underground heat technical field, be a kind of by drilling mode extraction geothermal water or the underground heat of heat energy
The ground thermal extraction method of well, extracts ground by underground heat energy to greatest extent, it is ensured that well head hot water reaches maximum temperature.
Background technology
It is the most commonly used a kind of ground thermal extraction method that machinery drilling well pumping underground hot water extracts underground heat.It is to pass through
Machinery boring method brill reaches a certain water layer in underground and extracts this layer of geothermal water.In extraction process, in pipe, hot water enters with annular space cold water
Row heat exchange, heat loses much on the way, causes geothermal water to reach hot water temperature during well head and declines, it is impossible to fully extracts underground
Heat energy.
When extracting geothermal water or heat energy by drilling mode, restricted by existing geological exploration techniques, the most completely can not
Determine the reserves of underground water, reservoir and crack, stratum accurately, cannot be avoided when drilling through geothermal well and run into lean well or low water
Well.Present stage such as lean well underground water does not seldom reach application purpose, and heat production water in underground can not meet needs, or run into low water
Well can not cause well to scrap by heat production water, it is impossible to extracts underground heat and all can cause huge economic loss, even has geothermal water
Although but amount enough salinities are high, extract and use and cause environmental pollution with rear discharge, thus extract underground heat be restricted or
Situation about cannot use occurs.
Summary of the invention
The technical problem to be solved is: improve the ground thermal extraction method of a kind of geothermal well, it is to avoid or reduce carry
Thermal loss when taking underground heat and extract geothermal water, ensure that geothermal water reaches well head to greatest extent, solve lean well, withered
The underground heat of the geothermal well that the underground heat of well extracts and salinity is high extracts the problem that maybe cannot use that is restricted, and improves and utilizes ground
The economic benefit of lower heat energy and social benefit.
The present invention solves the scheme of technical problem: it comprises the following steps:
1) geology physical prospecting
Plain sediments rock area is determined water depth, rock cuttings crack is found in mountain area, to determine well head position, ground
Put or drilling well orientation impact point；
2) wellbore construction
Machinery spinning solution is utilized to carry out drilling well；
3) well parameter is measured
Use oil well logging device measuring well parameter, by well log interpretation drilled strata situation；
4) draw water examination water, seek products, ask warm
The well parameter measured according to step 3), uses the method for test of drawing water to measure the well water yield, determines containing of well
The water yield is conventional well, rich in well, lean well or the one of low water well, determine water yield per day, pump process measured water
Temperature, determines that well is normal temperature well, high temperature well or the one of low temperature well；
5) determine completion mode and under enter sealing sleeve pipe
The result measured according to step 3) and step 4), determines completion mode and determines the setting of casing number of plies and structure；
6) water content is conventional well or the disposal rich in the well that well, hot water temperature are normal temperature or low temperature
It is conventional well or rich in the well that well, hot water temperature be normal temperature or low temperature to water content, hot for improving outlet
Coolant-temperature gage, extracts underground heat to greatest extent, after completion under enter instlated tubular, a length of well depth of instlated tubular 4/5～5/6；
The structure of described instlated tubular is: it includes that inner tube, outer tube and heat-barrier material, said inner tube and outer tube are hollow
Cylinder, the two ends mouth of pipe of inner and outer tubes seals connected respectively, seals and forms lacuna between the tube wall of the inner and outer tubes being connected,
Filling with insulation material vacuumizing in lacuna, the mouth of pipe one end at two ends be flow inlet, the other end for going out head piece, instlated tubular flow inlet
Downwards, go out in head piece is upwards placed in well and be connected；
7) to lean well or low water well and can not water lift utilize, the disposal of the normal well of formation temperature gradient
A) enter to take thermal under
High to lean well or low water well and the degree of mineralization of ground water, can not extraction and application, stratum temperature containing poisonous and harmful substance
Entering to take thermal under the degree normal well of gradient, insulated by all for stratum fluids, the circulation of beam body carries out extracting underground heat in addition；
Described outer beam body round-robin method is: outer beam body is injected the annular sky taking thermal by the input hole taking thermal
Gap is also flow to shaft bottom by well head in annular space, outer beam body in annular space in flow process by well head to limit, shaft bottom
The heating of flowing limit, flow to bottom hole temperature (BHT) and rises to the highest, then flowed upward to take hot charging by the flow inlet taking thermal instlated tubular
The head piece that goes out putting instlated tubular flows out ground well head outlet；
Described take thermal structure be: it includes closed sleeve pipe, high pressure centrifugal pump and instlated tubular, described totally-enclosed set
Managing the hollow cylinder for one end closure, the other end at closed sleeve pipe is radially arranged input hole, and input hole is by pipeline and height
Pressure centrifugal pump seal connects；Instlated tubular includes that inner tube, outer tube and heat-barrier material, said inner tube and outer tube are the cylinder of hollow,
The two ends mouth of pipe of inner and outer tubes seals connected respectively, seals and forms lacuna, lacuna between the tube wall of the inner and outer tubes being connected
Interior filling with insulation material also vacuumizes, the mouth of pipe one end at two ends be flow inlet, the other end for going out head piece, instlated tubular flow inlet to
Under, go out head piece and be upwards placed in closed sleeve pipe and seal and be connected, seal outside connected closed sleeve pipe inwall and instlated tubular
Annular space is formed between wall；Take in thermal closure end is placed in downwards well and be connected；
Described closed sleeve pipe is oil J55 or N80, diameter 244.5mm or 273.05mm sleeve pipe；
B) water injection rate is determined
Startup takes thermal and carries out water filling, is taking the hot water temperature and the row that to measure at head piece water outlet of thermal simultaneously
Amount, when going out the hot water temperature discharged at head piece and reaching the highest, the hot water discharge capacity taking thermal discharge is the optimum amount of water spraying, or takes
The hot water discharge capacity that thermal is discharged is optimal discharge capacity and time temperature reaches requirement, now takes the hot water discharge capacity that thermal discharges and is
The optimum amount of water spraying.
The ground thermal extraction method of geothermal well of the present invention, its instlated tubular can effectively and to greatest extent extract underground heat energy,
Prevent extract underground heat energy time heat-energy losses, especially can effectively extract lean well and the heat energy of low water well and
Can not the degree of mineralization of ground water of extraction and application is high, the underground heat energy of well containing poisonous and harmful substance, environmental pollution can be dropped by it
Reach 0 pollution purpose to minimum, heat energy can be provided for each field.The application of this technology can bring to society cannot estimate economic effect
Benefit and social benefit.
Accompanying drawing explanation
The structural representation of the instlated tubular of Fig. 1 present invention；
The structural representation taking thermal of Fig. 2 present invention；
The structural representation of Fig. 3 embodiment 1；
The structural representation of Fig. 4 embodiment 2；
The structural representation of Fig. 5 embodiment 3.
In figure: 1 instlated tubular, 2 go out head piece, 3 inner tubes, 4 outer tubes, 5 flow inlet, 6 annular spaces, and 7 seal entirely
Closing sleeve pipe, 8 input holes, 9 high pressure centrifugal pumps, 10 take thermal, 11 sealing sleeve pipes.
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Reference Fig. 1～Fig. 3, embodiment 1: digging a well in plain sediments rock area, step is as follows:
1) geology physical prospecting
Determine after plain sediments rock area is determined water depth that drilling depth is 2400m, determines well head with ground demand
Position；
2) wellbore construction
Utilize machinery spinning solution to carry out drilling well, drilling process measures a gradient, according to inclination for every 30～50 meters
Situation adjusts rig pressure and brill dish revolution, uses curved power drilling tool to carry out construction and ensure well when the gradient of straight well is more than 3 °
Beating straight, plain sediments rock area geothermal gradient average out to about 3.3 degree, drilling depth is 2400m；
3) well parameter is measured
Use oil well logging device measuring well parameter, explain drilled strata situation；
4) draw water examination water, seek products, ask warm
The well parameter measured according to step 3), uses the method for test of drawing water to measure the well water yield and hot water temperature, first
Measure hydrostatic level level, then use 20m3/ h, the deep water pump of more than lift 200m, under take out to below liquid level 50～80m
Water, the extraction time is 20h, because of the extraction less than 24h, extracts entering below liquid level 180 200 meters under deep water pump, extraction
Time is more than 24h, then trips out this pump, by 40m3/ h, more than lift 200m deep water pump under enter the same degree of depth and extract, extraction
Time is 19h, it is known that daily output hot water 760 m3, it is the highest 32 DEG C for measuring water temperature in pump process；Aquifer yield according to well
With the standard of perfection of hot water temperature, determine that this well is for rich in the water yield, low temperature well；
The water content standard of perfection of described well is: low water well: do not produce water, lean well: water yield per day≤50 m3.Standard
Well: water yield per day 120～200 m3, rich in well, water yield per day >=200 m3Above；
The standard of perfection of the hot water temperature of described well is: the hot water temperature measuring well head is normal-temperature water at 35～45 DEG C
Well, the hot water temperature of well head is low temperature well less than 35 DEG C, and the hot water temperature of well head is high temperature well more than 45 DEG C；
5) determine completion mode and under enter sealing sleeve pipe 11
According to step 3) measure parameter and step 4) measure rich in the water yield, the conclusion of low temperature well, use full well set
Pipe mode completion, and under enter sealing sleeve pipe 11 to down-hole 500 m；
6) this is rich in the water yield, the disposal of low temperature well
For improving outlet hot water's temperature, extract underground heat to greatest extent, after completion under to enter external diameter be φ 114.3mm, a length of
The instlated tubular 1 of 1950 m；
The structure of described instlated tubular 1 is: it includes that inner tube 3, outer tube 4 and heat-barrier material, said inner tube 3 and outer tube 4 are
The cylinder of hollow, the two ends mouth of pipe of inner tube 3 and outer tube 4 seals connected respectively, seals the inner tube 3 and the pipe of outer tube 4 being connected
Between wall formed lacuna, the mouth of pipe one end at two ends be flow inlet 5, the other end for going out head piece 2, heat-barrier material is placed in lacuna, heat insulation
Pipe 1 flow inlet 5 downwards, go out in head piece 2 is upwards placed in well and be connected.
With reference to Fig. 4, embodiment 2, digging a well in area, lithosphere crack, mountain area, step is as follows:
1) geology physical prospecting
Rock fracture area, mountain area is recorded by geological prospecting and descends crack water-bearing zone width 40 meters definitely, and definitely
Mouth coordinate position, face；
2) wellbore construction
Machinery spinning solution is utilized to carry out drilling well after the well head coordinate position of selected ground, in drilling process every 10～20 meters
Measure a hole angle and azimuth, full well maximum hole angle 1.8 °, radius R17.8m is hit home a little, drilling depth
2404m；
3) well parameter is measured
Use oil well logging device measuring well parameter, explain drilled strata situation；
4) draw water examination water, seek products, ask warm
The well parameter measured according to step 3), uses the method for test of drawing water to measure the well water yield and hot water temperature, first
Measure hydrostatic level level, then use 20m3/ h, the deep water pump of more than lift 200m, under take out to below liquid level 50～80m
Water, the extraction time is more than 24h, then trips out this pump, by 40m3/ h, more than lift 200m deep water pump under enter the same degree of depth and take out
Taking, the extraction time is 24h, it is known that daily output hot water 960 m3, it is the highest 51 DEG C for measuring water temperature in pump process；According to well
Aquifer yield and the standard of perfection of hot water temperature, determine that this well is for rich in the water yield, high temperature well；
The aquifer yield of described well and the standard of perfection of hot water temperature are with the step 4) of embodiment 1；
5) determine completion mode and under enter sealing sleeve pipe 11
According to step 3) measure parameter and step 4) measure rich in the water yield, the conclusion of high temperature well, subordinate in employing
Sealing sleeve pipe 11, bottom bore hole mode completion, and under enter sealing sleeve pipe 11 to down-hole 500 m.
With reference to Fig. 5, embodiment 3, in water-deficient area, low water is regional, the degree of mineralization of ground water is high, containing poisonous and harmful substance area
Underground heat is extracted in well-digging, and step is as follows:
1) geology physical prospecting
To plain sediments rock surveying areas underground no water layer, select pithead position according to surface condition and determine drilling depth；
2) wellbore construction
Utilize machinery spinning solution to carry out drilling well, drilling process measures a gradient, inclining of straight well for every 30～50 meters
Use curved power drilling tool to carry out construction when gradient is more than 3 ° and ensure that well is beaten directly, plain sediments rock area geothermal gradient average out to
About 3.3 degree, drilling depth is 2300m；
3) well parameter is measured
Using oil well logging device measuring well parameter, explain drilled strata situation, surveyed parameter is water in the 800m of top
Layer is abundant, temperature is low, bottom no water layer, bottom hole temperature (BHT) 68 DEG C；
4) draw water examination water, seek products, ask warm
The well parameter measured according to step 3), uses the method for test of drawing water to measure the well water yield and hot water temperature, first
Measure hydrostatic level level, then use 20m3/ h, the deep water pump of more than lift 200m, under take out to below liquid level 50～80m
Water, the extraction time is 16 minutes, because of the extraction less than 24h, extracts entering below liquid level 180 200 meters under pump, during extraction
Between be 38 minutes, because of the extraction less than 24h, trip out this pump, by 10m3/ h, more than lift 200m deep water pump under enter the same degree of depth
Extracting, the extraction time is 1 hour 20 minutes, by being interrupted extraction daily output hot water less than 50 m3, measure in pump process
Water temperature is the highest 32 DEG C；Aquifer yield according to well and the standard of perfection of hot water temperature, determine that this well is poor-water, water at low temperature
Well；
The aquifer yield of described well and the standard of perfection of hot water temperature are with the step 4) of embodiment 1；
5) determine completion mode and under enter sealing sleeve pipe 11
The parameter measured according to step 3) and the poor-water of step 4) measurement, the conclusion of low temperature well, full casing under employing
Method completion, and under enter sealing sleeve pipe 11 to down-hole 500 m；
6) disposal of the lean well of the present embodiment
A) enter to take thermal 10 under
Entering to take thermal 10 to the poor-water down-hole of the present embodiment, beam body round-robin method extracts underground heat, the present embodiment in addition
Outer beam body be water at low temperature, it may be assumed that outer note water at low temperature is injected the annular space taking thermal 10 by the input hole 8 taking thermal 10
In 6, and flow to shaft bottom by well head in annular space 6, outer note water at low temperature in annular space 6 in flow process by well head to well
Flowing limit, base is heated, and flow to bottom hole temperature (BHT) and rises to the highest, then by taking the flow inlet 5 of thermal 10 instlated tubular 1 to upstream
Go out head piece 2 to take thermal 10 instlated tubular 1, thus flow out well head；
Described take thermal 10 structure be: it includes closed sleeve pipe 7, high pressure centrifugal pump 9 and instlated tubular 1, described entirely
Oil J55, the diameter × wall thickness 244.48mm × 8.94(10.03 that closed casing 7 blocks for one end) mm sleeve pipe, at totally-enclosed set
The other end of pipe 7 is radially arranged input hole 8, and input hole 8 is tightly connected with high pressure centrifugal pump 9 by pipeline；In instlated tubular 1 includes
Pipe 3, outer tube 4 and heat-barrier material, said inner tube 3 and outer tube 4 are the cylinder of hollow, instlated tubular 1 external diameter 114.3mm, inner tube 3
Seal connected respectively with the two ends mouth of pipe of outer tube 4, seal and form lacuna, in lacuna between the tube wall of the inner tube 3 and outer tube 4 being connected
Add heat-barrier material and vacuumize.The mouth of pipe one end at two ends be flow inlet 5, the other end for going out head piece 2, instlated tubular 1 flow inlet 5
Downwards, going out in head piece 2 is upwards placed in closed sleeve pipe 7 and sealed by petroleum casing screw to be connected, it is totally-enclosed that sealing is connected
Annular space 6 is formed between the tube wall of sleeve pipe 7 and instlated tubular 1；Take thermal 10 block in end is placed in downwards well and be connected；Described
High pressure centrifugal pump 9, oil J55 sleeve pipe are the commercially available prod of prior art；
B) water injection rate is determined
Startup takes thermal 10 and carries out water filling, and the hot water temperature in the equipped at outlet port measurement water outlet taking thermal 10 is simultaneously
When 48 DEG C, the hot water discharge capacity now taking thermal 10 discharge is 15 m3/h。
Claims (4)
1. a ground thermal extraction method for geothermal well, is characterized in that: it comprises the following steps:
1) geology physical prospecting
Plain sediments rock area is determined water depth, to mountain area find rock cuttings crack, with determine ground pithead position or
Drilling well orientation impact point；
2) wellbore construction
Machinery spinning solution is utilized to carry out drilling well；
3) well parameter is measured
Use oil well logging device measuring well parameter, by well log interpretation drilled strata situation；
4) draw water examination water, seek products, ask warm
The well parameter measured according to step 3), uses the method for test of drawing water to measure the well water yield, according to the water content of well
Determine well be conventional well, rich in well, lean well or the one of low water well, determine water yield per day, survey in pump process
Amount water temperature, determines that well is normal temperature well, high temperature well or the one of low temperature well；
5) determine completion mode and under enter sealing sleeve pipe
The result measured according to step 3) and step 4), determines completion mode and determines the setting of casing number of plies and structure；
6) water content is conventional well or the disposal rich in the well that well, hot water temperature are normal temperature or low temperature
It is conventional well or rich in the well that well, hot water temperature be normal temperature or low temperature to water content, for raising outlet hot water's temperature
Degree, extract underground heat to greatest extent, after completion under enter instlated tubular, a length of well depth of instlated tubular 4/5～5/6；
7) to lean well or low water well and can not water lift utilize, the disposal of the normal well of formation temperature gradient
A) enter to take thermal under
To lean well or low water well and the degree of mineralization of ground water, the high poisonous and harmful substance that contains can not extraction and application, formation temperature ladder
Spending to enter to take thermal under normal well, insulated by all for stratum fluids, the circulation of beam body carries out extracting underground heat in addition；Described
The circulation of outer beam body is to inject outer beam body by the input hole taking thermal to take the annular space of thermal and in annular space
In flow to shaft bottom by well head, outer beam body in annular space in flow process by well head to flowing limit, limit, shaft bottom heat, flow
Rise to bottom hole temperature (BHT) the highest, then gone out stream by what the flow inlet taking thermal instlated tubular flowed upward to take thermal instlated tubular
Mouthful, thus flow out well head；
B) water injection rate is determined
Startup takes thermal and carries out water filling, is taking the hot water temperature and the discharge capacity that to measure at head piece water outlet of thermal simultaneously, when
Going out the hot water temperature discharged at head piece when reaching the highest, taking the hot water discharge capacity that thermal discharges is the optimum amount of water spraying, or takes hot charging
Putting the hot water discharge capacity of discharge and be optimal discharge capacity and time temperature reaches requirement, it is optimal for now taking the hot water discharge capacity that thermal discharges
Water injection rate.
2. the ground thermal extraction method of geothermal well as claimed in claim 1, is characterized in that: its bag of instlated tubular used by described step 6)
Including inner tube, outer tube and heat-barrier material, said inner tube and outer tube and be the cylinder of hollow, the two ends mouth of pipe of inner and outer tubes is respectively
Seal and be connected, seal and between the tube wall of the inner and outer tubes being connected, form lacuna, filling with insulation material vacuumizing, two ends in lacuna
Mouth of pipe one end be flow inlet, the other end for going out head piece, instlated tubular flow inlet downwards, go out in head piece is upwards placed in well and solid
Even.
3. the ground thermal extraction method of geothermal well as claimed in claim 1, is characterized in that: take used by described step 7) thermal it
Including closed sleeve pipe, high pressure centrifugal pump and instlated tubular, described closed sleeve pipe is the hollow cylinder of one end closure, totally-enclosed
The other end of sleeve pipe is radially arranged input hole, and input hole is tightly connected with high pressure centrifugal pump by pipeline；Instlated tubular include inner tube,
Outer tube and heat-barrier material, said inner tube and outer tube are the cylinder of hollow, and the two ends mouth of pipe of inner and outer tubes seals solid respectively
Even, seal and between the tube wall of the inner and outer tubes being connected, form lacuna, filling with insulation material vacuumizing, the mouth of pipe at two ends in lacuna
One end be flow inlet, the other end for going out head piece, instlated tubular flow inlet downwards, go out in head piece is upwards placed in closed sleeve pipe and seal
It is connected, seals and form annular space between the outer wall of closed sleeve pipe inwall and the instlated tubular being connected；Take thermal closure end downward
It is placed in well and is connected.
4. the ground thermal extraction method of geothermal well as claimed in claim 3, is characterized in that: described closed sleeve pipe is oil J55
Or N80 sleeve pipe.
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| CN104930892A (en) * | 2015-07-06 | 2015-09-23 | 徐德龙 | Heat pipe type rock stratum heat exchanger |
| CN106403379A (en) * | 2016-08-30 | 2017-02-15 | 湖南中大经纬地热开发科技有限公司 | Geotherm utilizing method based on bed rock geology |
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| CN107023294B (en) * | 2017-06-06 | 2018-05-11 | 西安科技大学 | Mineral deposit cooperates with recovery method and system with underground heat |
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| CN107642329A (en) * | 2017-11-14 | 2018-01-30 | 中国煤炭地质总局水文地质局 | A kind of process of the U-shaped docking geothermal well casings pipeline sealing operation of mid-deep strata |
| CN108412463A (en) * | 2018-04-27 | 2018-08-17 | 吉林建筑大学 | A kind of geothermal well and its completion method |
| CN108678719B (en) * | 2018-05-04 | 2020-10-30 | 艾科尔新能源科技有限公司 | Geothermal well geothermal composite exploitation pipe |
| CN110230896B (en) * | 2019-05-24 | 2020-10-27 | 中国石油大学(北京) | Underground heat extraction device and underground heat extraction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606869Y (en) * | 2003-01-09 | 2004-03-17 | 何满潮 | Producing, filling and energy taking device for single well |
| CN201652970U (en) * | 2010-01-27 | 2010-11-24 | 龚智勇 | Device for conducting geothermal energy by using oil well casing |
| CN201909483U (en) * | 2010-12-28 | 2011-07-27 | 徐毅 | Induced convection device for extracting terrestrial heat through underground heat exchange |
| CN203586593U (en) * | 2013-11-15 | 2014-05-07 | 刘建生 | Geothermal energy resource device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4782462B2 (en) * | 2005-04-13 | 2011-09-28 | 新日鉄エンジニアリング株式会社 | Geothermal heat pump device, geothermal heat device equipped with the same, and control method for geothermal heat pump device |
-
2014
- 2014-08-09 CN CN201410388987.9A patent/CN104265242B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606869Y (en) * | 2003-01-09 | 2004-03-17 | 何满潮 | Producing, filling and energy taking device for single well |
| CN201652970U (en) * | 2010-01-27 | 2010-11-24 | 龚智勇 | Device for conducting geothermal energy by using oil well casing |
| CN201909483U (en) * | 2010-12-28 | 2011-07-27 | 徐毅 | Induced convection device for extracting terrestrial heat through underground heat exchange |
| CN203586593U (en) * | 2013-11-15 | 2014-05-07 | 刘建生 | Geothermal energy resource device |
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