CN109386264A - Hot dry rock (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction - Google Patents
Hot dry rock (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction Download PDFInfo
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- CN109386264A CN109386264A CN201710671007.XA CN201710671007A CN109386264A CN 109386264 A CN109386264 A CN 109386264A CN 201710671007 A CN201710671007 A CN 201710671007A CN 109386264 A CN109386264 A CN 109386264A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/17—Interconnecting two or more wells by fracturing or otherwise attacking the formation
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Abstract
The present invention is a kind of hot dry rock (EGS) the twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction, is made of three digest journals: a. injected system, including injection pipe (1), every conduction type material (4)；B. heat-exchange system, including horizontal bare hole wellhole (2), artificial fracturing rock stratum (3)；C. discharge system, including discharge pipe (5), every conduction type material (4)；A certain amount of working medium (6) is injected inside injected system, heat-exchange system and discharge system.Three digest journals are connect with ground heat energy utilization equipment, form the circulatory system, expeditiously export the thermal energy of hot dry rock heat reservori, are applied to power generation, heating (refrigeration) etc., are realized the social value of low-carbon environment-friendly, energy regeneration.The present invention is a kind of technology of completely new development and utilization hot dry rock.
Description
Technical field
The invention belongs to hot dry rock (EGS) technologies, and more particularly, to twin-well, the big artificial fracturing of vertical depth long horizontal sections is changed in the same direction
Hot systems.
Background technique
" National Energy Board is about the instruction for establishing renewable energy development and utilization goal directed system " (state can new energy
[2016] No. 54) realize that 2020, the year two thousand thirty non-fossil energy accounts for the energy that non-renewable energy consumption specific gravity respectively reaches 5%, 20%
Development strategic objective.
" renewable energy " 13 " development plan " is in high temperature such as Qinghai-Tibet Railway, Tibet, western Sichuans within 2016
Geothermal energy resources Distribution Area creates several ten thousand multikilowatts high-temperature geothermal power generation projects, carries out skill to Tibet Yangbajing geothermal power station
Art upgrading.It supports to carry out deep layer high temperature hot dry rock hair in the eastern developed area such as Qinghai-Tibet Platean and adjacent area, Beijing-Tianjin-Tangshan
Electric system key technology research and project demonstration.
It is renewable actively to promote solar energy, geothermal energy, air heat energy etc. within 2016 " production of energy and consumption revolution strategy "
Energy construction scope application technology；Carry out geothermal energy demonstration county, the construction of demonstration small towns；Develop jointly water energy, photovoltaic, wind energy,
The resources such as biomass energy, geothermal energy, ocean energy, Clean cooperation in the field of energy template.
National Energy Board in 2016 proposes " to reinforce in " energy technology revolution innovates action plan (2016-the year two thousand thirty) "
Geothermal energy development utilizes, the transformation of research and development hot water type geothermal system and yield-increasing technology, breaks through hot dry rock exploitation key technology equipment, builds
If the power generation of MW class hot dry rock and the comprehensive cascade utilization demonstration project of underground heat ".
In January, 2017, National Development and Reform Committee, National Energy Board, " geothermal energy development utilizes " ten to National Resources Board's joint publication
Three or five " plan " specify the specific tasks that geothermal energy development utilizes during " 13 ", it is 4 years following in, China is by newly-increased underground heat
Can heat 1,100,000,000 square metres of (refrigeration) area, in which: newly-increased 700,000,000 square metres of (refrigeration) area of shallow layer geothermal energy heating is newly surged
400,000,000 square metres of heat type geothermal heating system area.To the year two thousand twenty, geothermal heating system (refrigeration) area has reached 1,600,000,000 square metres.Beijing-Tianjin
Ji area geothermal energy year utilization reaches about 20,000,000 tons of standard coals.For the developing goal for reaching the planning of above-mentioned underground heat, " 13
During five ", China increases geothermal power generation installed capacity newly every year on average will reach 100MW.Preresearch estimates, during " 13 ", shallowly
Layer geothermal energy heating (refrigeration) can pull about 140,000,000,000 yuan of investment, and the heating of hot water type geothermal energy can pull about 80,000,000,000 yuan of investment, ground
Heat power generation can pull about 40,000,000,000 yuan of investment, add up to about 260,000,000,000 yuan.
Summary of the invention
Energy-efficient the object of the present invention is to provide a kind of lower cost, heat utilization rate is high, low-carbon environment-friendly extraction and application
Hot dry rock (EGS) twin-well of geothermal energy artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction.
To achieve the above object, the present invention takes following technical scheme: step 1: according to calorific requirement, geothermic gradient construction one
It is the wellhole of horizontal well that two mouthfuls of upper sections of depthkeeping degree, which are straight well, lower section,.
Step 2: injection pipe (1) being installed in the straight well section of a bite wellhole, filling is every conduction type material outside injection pipe
(4), injected system is constituted.
Step 3: discharge pipe (5) being installed in the straight well section of another mouthful of wellhole, external in discharge pipe is filled every conduction profile
Expect (4), constitutes discharge system.
Step 4: so that dry-heat rock body is formed artificial fracturing rock stratum (3) using fracturing technique in the net horizontal section of two mouthfuls of wellholes,
Heat-exchange system is constituted with horizontal bare hole wellhole (2).
Step 5: filling working medium (6) inside injection pipe (1), discharge pipe (5), horizontal bare hole wellhole (2), loading foundation
Calorific requirement, which calculates, to be determined.
The present invention has the advantage that 1, is environmentally protective due to taking above technical scheme, no exhaust gas, waste liquid, useless
Slag discharge.2, water intaking is convenient, available after city tap-water, poor-quality water transformation.3, aqueous medium iterative cycles utilize, and can protect
Save urban groundwater resource.4, water source is stablized, and water temperature is adjustable, and heat utilization rate is high, energy-efficient.5, without inflammable, explosive dress
It sets, use is safe.6, system long service life.Underground and ground tubing, corrosion-resistant, high temperature resistant, high pressure resistant, service life is reachable
70 years or more.7, hole diameter is relatively small, and through cementing operation, cement is consolidated, and underground without motion equipment not will cause stratum and collapse
It collapses, will not influence surface structures and urban facilities safety.8, well construction technology is mature, at low cost, high-efficient, remarkable in economical benefits.
9, occupied area is small, can break through that ground space is narrow and the limitation of underground urban geology red line.10, to fine and close dry-heat rock body into
Pedestrian is exquisite to be split, and is expanded heat exchange area and volume, is more efficiently exported the thermal energy in dry-heat rock body.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention
(1) injection pipe in figure, (2) horizontal bare hole wellhole, (3) artificial fracturing rock stratum (4) every conduction type material, (5) discharge pipe,
(6) working medium.
Specific embodiment
1, according to geologic prospect early period, suitable hot dry rock heat reservori position is chosen, selected well location, foundation calorific requirement,
Two mouthfuls of upper sections of thermal gradient construction certain depth are the wellholes that straight well, lower section are horizontal well.
2, injection pipe (1) is installed in the straight well section of a bite wellhole, filling is built every conduction type material (4) outside injection pipe
At injected system.
3, discharge pipe (5) are installed in the straight well section of another mouthful of wellhole, are filled outside discharge pipe every conduction type material (4),
Build up discharge system.
4, dry-heat rock body is made to form artificial fracturing using artificial fracturing technology between the horizontal bare hole well section of two mouthfuls of wellholes
Heat-exchange system is built up with horizontal bare hole wellhole (2) in rock stratum (3).
5, a certain amount of working medium (6) are disposably injected inside injection pipe (1), discharge pipe (5), horizontal bare hole wellhole (2).
6, activation system, working medium enter heat-exchange system by injected system and complete thermal energy exchange, then arranged by discharge system
Out.Working medium enters back into injected system and carries out next circulation after doing work in the heat energy utilization equipment of ground.
Technical characterstic: establishing big vertical depth open-hole horizontal well hole in the same direction in the lower section of two mouthfuls of straight wells, using artificial fracturing technology,
So that the dry-heat rock body between two mouthfuls of horizontal wellbores is formed crack, artificial heat-exchange system is built, more efficiently by dry-heat rock body
Thermal energy export.
Using this techniques save space occupied, water resource to be saved, reduces cost, heat utilization rate is high, and it is environmentally protective, without useless
Gas, waste liquid, waste sludge discharge, social benefit are significant.
Claims (1)
- Hot dry rock 1. (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction, it is characterised in that: one depthkeeping of construction Two mouthfuls of upper sections of degree are wellholes that straight well lower section is horizontal well, build three digest journals: a. injected system, including injection pipe (1), every Conduction type material (4)；B. heat-exchange system, including horizontal bare hole wellhole (2), artificial fracturing rock stratum (3)；C. discharge system, including Discharge pipe (5), every conduction type material (4)；Injected system, heat-exchange system and discharge system constitute a circulatory system, inside note Enter a certain amount of working medium (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710671007.XA CN109386264A (en) | 2017-08-08 | 2017-08-08 | Hot dry rock (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710671007.XA CN109386264A (en) | 2017-08-08 | 2017-08-08 | Hot dry rock (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109386264A true CN109386264A (en) | 2019-02-26 |
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|---|---|---|---|
| CN201710671007.XA Pending CN109386264A (en) | 2017-08-08 | 2017-08-08 | Hot dry rock (EGS) twin-well artificial fracturing heat-exchange system of big vertical depth long horizontal sections in the same direction |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772618A (en) * | 2007-08-01 | 2010-07-07 | 哈利伯顿能源服务公司 | Drainage of heavy oil reservoirs via horizontal wellbore |
| CN105201468A (en) * | 2015-09-06 | 2015-12-30 | 中国石油天然气股份有限公司 | Method for assisting communication between horizontal wells |
| CN105283633A (en) * | 2012-11-28 | 2016-01-27 | 尼克森能源无限责任公司 | Method for increasing product recovery in fractures proximate fracture treated wellbores |
| CN105358793A (en) * | 2013-07-04 | 2016-02-24 | Ior加拿大有限公司 | Improved hydrocarbon recovery process exploiting multiple induced fractures |
| CN105840146A (en) * | 2016-04-14 | 2016-08-10 | 中国石油大学(华东) | A geothermal method for self-circulation exploitation of hot dry rock by volume fracturing of branch wells |
| CN205939790U (en) * | 2016-07-05 | 2017-02-08 | 河南圆方干热岩勘探开发股份有限公司 | Do exquisite heat transfer system that splits of two horizontal multiple -limb wells of hot dry rock (EGS) butt joint people |
| CN205957524U (en) * | 2016-07-05 | 2017-02-15 | 河南圆方干热岩勘探开发股份有限公司 | Do exquisite heat transfer system that splits of two horizontal people of hot dry rock (EGS) |
| CN106978993A (en) * | 2017-05-16 | 2017-07-25 | 中国地质大学（武汉） | A kind of medium and deep sandstone underground heat horizontal well recovery method and structure |
-
2017
- 2017-08-08 CN CN201710671007.XA patent/CN109386264A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772618A (en) * | 2007-08-01 | 2010-07-07 | 哈利伯顿能源服务公司 | Drainage of heavy oil reservoirs via horizontal wellbore |
| CN105283633A (en) * | 2012-11-28 | 2016-01-27 | 尼克森能源无限责任公司 | Method for increasing product recovery in fractures proximate fracture treated wellbores |
| CN105358793A (en) * | 2013-07-04 | 2016-02-24 | Ior加拿大有限公司 | Improved hydrocarbon recovery process exploiting multiple induced fractures |
| CN105201468A (en) * | 2015-09-06 | 2015-12-30 | 中国石油天然气股份有限公司 | Method for assisting communication between horizontal wells |
| CN105840146A (en) * | 2016-04-14 | 2016-08-10 | 中国石油大学(华东) | A geothermal method for self-circulation exploitation of hot dry rock by volume fracturing of branch wells |
| CN205939790U (en) * | 2016-07-05 | 2017-02-08 | 河南圆方干热岩勘探开发股份有限公司 | Do exquisite heat transfer system that splits of two horizontal multiple -limb wells of hot dry rock (EGS) butt joint people |
| CN205957524U (en) * | 2016-07-05 | 2017-02-15 | 河南圆方干热岩勘探开发股份有限公司 | Do exquisite heat transfer system that splits of two horizontal people of hot dry rock (EGS) |
| CN106978993A (en) * | 2017-05-16 | 2017-07-25 | 中国地质大学（武汉） | A kind of medium and deep sandstone underground heat horizontal well recovery method and structure |
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Effective date of registration: 20200616 Address after: Room 104, East unit, family home, Jicheng hospital, No. 5, Shenghe street, Zhengdong New District, Zhengzhou City, Henan Province 450017 Applicant after: HENAN YUANFANG DRY ROCK EXPLORATION AND DEVELOPMENT Co.,Ltd. Address before: 450000 floor four, central LED trading center, 5 Shangdu Road, Zheng Dong New District, Zhengzhou, Henan. Applicant before: Wei Zhihai |
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Application publication date: 20190226 |
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