CN106481328B - A method of the artificial heat storage of hot dry rock is built using graininess dry ice - Google Patents

A method of the artificial heat storage of hot dry rock is built using graininess dry ice Download PDF

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CN106481328B
CN106481328B CN201610842378.5A CN201610842378A CN106481328B CN 106481328 B CN106481328 B CN 106481328B CN 201610842378 A CN201610842378 A CN 201610842378A CN 106481328 B CN106481328 B CN 106481328B
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dry
rock
dry ice
well
heat
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CN106481328A (en
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郤保平
崔继明
李广林
赵阳升
冯增朝
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Taiyuan University of Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production
    • E21B43/26Methods for stimulating production by forming crevices or fractures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/20Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30Specific pattern of wells, e.g. optimising the spacing of wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Geophysics (AREA)
  • Hydrology & Water Resources (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention discloses a kind of methods for building the artificial heat storage of hot dry rock using graininess dry ice, heat absorption, volume expansion pressure increase, generate supercritical carbon dioxide when this method makes full use of graininess dry ice that phase-state change occurs in destination layer dry-heat rock body, during the entire process of dry ice phase-state change, dry-heat rock body is more prone to produce volume rupture or the rupture of clump formula under temperature difference and frac pressure coupling, to form Fracture Networks development, the artificial heat reservori with bigger heat exchange area.The present invention overcomes limitation of the hydraulic fracturing in the artificial heat storage of construction hot dry rock, solve the technical disadvantages such as hydraulic fracturing at high cost, the period is long, heat reservori crack agensis of formation present in the artificial heat reservori construction of hot dry rock.

Description

A method of the artificial heat storage of hot dry rock is built using graininess dry ice
Technical field
It is the invention belongs to the artificial heat storage construction applications of hot dry rock, in particular to a kind of that graininess dry ice is pumped into hot dry rock people Work heat stores up destination layer Rockmass fractures, and dry ice heat absorption in crack (crack) occurs phase-state change, generates supercritical carbon dioxide, stream Body pressure increases, and volume rupture is more readily formed at elevated pressures or clump formula is broken while thermal fracture weakens for destination layer rock mass The method to build the artificial heat storage of hot dry rock is split, it is specially a kind of to carry out what the artificial heat storage of hot dry rock was built using graininess dry ice Method.
Background technique
Underground heat is determined as maintaining the new " green of social sustainable development as green, renewable resource, by countries in the world The color energy ".Dry-hot-rock geothermal generally refers to the geothermal energy resource that temperature is contained in 200 DEG C or more of rock mass, can be by artificial Exploitation directly extracts heat for generating electricity from rock mass.
The key technology of dry-hot-rock geothermal (or enhanced underground heat) development and utilization is the construction of artificial heat storage, artificial heat Storage refers to the water built up in dry-heat rock body using manual method and dry-heat rock body carries out the region of heat exchange, normally behaves as The crack clump (slit band) of cranny development is formed between two wells or group wells.Building artificial heat at present and storing up common method is that waterpower causes Method is split, crack is generated in rock mass and extends intersection, forms the fracture network or fissure zone of development.U.S. Los Alamos National Laboratory is pointed out after summarizing Fenton Hill dry-hot-rock geothermal exploration project: artificial heat storage hydraulic fracturing Connection be it is very difficult, formation it is artificial heat storage is limited.
Dry ice is the solid carbon dioxide existing for 1 normal atmosphere pressure, -78.5 DEG C, and dry ice cold-storage is the 2 of water-ice Times, carbon dioxide gas, no any residual, non-toxic, free from extraneous odour are sublimed into after absorbing heat.The production is simple and convenient for it, dioxy It is very low to change carbon source abundance, cost.Dry ice has good physical characteristic: it is volatile, it will be sent out when temperature is higher than -78.5 DEG C Raw distillation absorbs heat and is quickly converted to nontoxic, tasteless carbon dioxide gas;Meanwhile volume can expand rapidly 600-800 Times, therefore in finite volume, dry ice, which meets high temperature endothermic, can occur the variation of phase, and the gaseous carbon dioxide being converted to can be to container Wall generates high pressure, and is likely to occur explosion.When the temperature of CO 2 fluid, pressure reach 31.1 DEG C and 7.4MPa, two Carbon oxide fluid is at supercriticality.Supercritical carbon dioxide has gas and liquid double properties concurrently: density is big, usually The hundred times of gas, are bordering on liquid;Viscosity is low, two orders of magnitude smaller than liquid viscosity, diffusion coefficient is high, about liquid 10-100 times.Therefore stream of supercritical carbon dioxide has the low viscosity and easy diffusion, the high density of liquid and diffluent spy of gas Property.
Therefore, for fine and close, low-permeability dry-heat rock body, heat absorption, volume when making full use of carbon dioxide phase-state change The characteristics of variation generates pressure change, and supercritical carbon dioxide is generated after heat absorption, it is broken in conjunction with supercritical carbon dioxide pressure break rock mass Split pressure is low, the characteristic that heat absorption formation temperature gradient causes dry-heat rock body mechanical property to weaken when carbon dioxide phase-state change, will Graininess dry ice is pumped into the artificial heat storage destination layer of hot dry rock, and iterative cycles carry out, and dry-heat rock body is total in temperature difference and frac pressure The rupture of same-action lower volume or the rupture of clump formula, so that artificial heat reservori of the formation with bigger heat exchange area, builds artificial heat Storage has longer service life and biggish power output.
Summary of the invention
In order to overcome limitation of the hydraulic fracturing when building the artificial heat of hot dry rock and storing up, dry ice phase-state change is made full use of When heat absorption, volume expansion pressure increase, the supercritical carbon dioxide of generation be easier in rock mass formed volume rupture characteristic, The present invention provides a kind of methods for carrying out artificial reservoir structure using graininess dry ice.
The present invention adopts the following technical scheme that realization:
A method of artificial heat storage is carried out using graininess dry ice and is built: making full use of graininess dry ice dry in destination layer Heat absorption, volume expansion pressure increase, generate supercritical carbon dioxide when phase-state change occurring in hot rock mass, in dry ice phase-state change During the entire process of, dry-heat rock body is more prone to produce volume rupture under temperature difference and frac pressure coupling or clump formula is broken It splits, to form Fracture Networks development, the artificial heat reservori with bigger heat exchange area.
The step of it is embodied are as follows:
(1) geologic information prospecting is carried out in dry-hot-rock geothermal developing zone, determines that Optimal Production well group is arranged, the producing well Group is by injection well and production well construction.Well group arrangement, the cloth of well group are carried out according to geothermal area range and dry-hot-rock geothermal gradient It sets mode usually and has and is following several: a bite injection well and two mouthfuls of producing wells (three well modes), a bite injection well and four mouthfuls of producing wells (five well modes), injection well and producing well spacing L=500-800m.
(2) it in hot dry rock developing zone, determines Optimal Production well group arrangement form, successively determines injection well and production well location It sets, passes through wellbore construction to destination layer, i.e. hot dry rock depth of stratum of the temperature at 200 DEG C or more.
(3) sufficient graininess dry ice is pumped into destination layer circulation by dry ice pressure pump, vertical fragmentation is implemented to destination layer Fracturing, every section of height of lift 2-5m, every section of height are determined by drilling depth and suffered crustal stress size.
(4) to guarantee fracturing effect, graininess dry ice is implemented to destination layer and recycles pressure break, and is supervised by pressure sensor Control destination layer environmental pressureP 0 , injection dry ice flow is adjusted by dry ice pressure pump, is guaranteedP 0 Greater than rock stratum minimum initial cracking pressureP t
(5) above-mentioned (3), (4) step successively are implemented to each well in production well group.In work progress, pass through carbon dioxide Carbon dioxide flow in the adjacent drilling well of detector monitorsV 0, to differentiate destination layer fracturing effect, until reaching design requirement, stop Pressure break.
(6) after above-mentioned pressure break is completed, sufficient graininess dry ice is pumped by injection well, it is small that 24-48 is recycled between well group When, while detecting carbon dioxide flow situation in producing well.Closing of fracture is effectively avoided, realizes splitting for hot dry rock destination layer generation Gap extension, perforation, ultimately form that permeability is strong, heat exchange area is larger, the artificial heat reservori of ideal of cranny development.
(7) a large amount of water at low temperature (20 DEG C -30 DEG C) is injected from injection well, carries out sufficient heat exchange in artificial heat reservori Afterwards, hyperthermia and superheating water is discharged from producing well, generates electricity for hot water, realizes ground thermal extraction.
It is above-mentioned it is a kind of carry out the method that the artificial heat storage of hot dry rock is built using graininess dry ice, the step (3), (4), (6) its particle size diameter size of graininess dry ice used in is 2-4mm, at a temperature below -78.5 DEG C, is arranged by well head dry Ice pressure is pumped to be pumped into destination layer.
Compared with prior art, the beneficial effects of the present invention are: the preparation of (1) graininess dry ice is simple, carbon dioxide source Abundance, it is low in cost, it is safe and non-toxic.(2) make full use of the heat absorption of graininess dry ice that phase-state change occurs, generates gaseous state titanium dioxide Carbon, the characteristics of generating higher pressure stress with volume increase, supercritical carbon dioxide is generated after heat absorption, in conjunction with overcritical titanium dioxide It is low that carbon pressure splits rock masses fracturing pressure, and heat absorption formation temperature gradient in dry-heat rock body when dry ice phase-state change, causes hot dry rock Graininess dry ice is pumped into the artificial heat storage destination layer of hot dry rock, recycles pressure break, split to be formed by the characteristic of hydrodynamic properties reduction The strong artificial heat reservori of ideal of gap development, storage capacity, more preferable than conventional hydraulic fracturing effect, cost is lower.
Detailed description of the invention
Fig. 1 is production well group " three well modes " arrangement schematic diagram.
Fig. 2 is production well group " five well modes " arrangement schematic diagram.
Fig. 3 is graininess dry ice in the artificial heat storage schematic diagram of xeothermic rock stratum generation phase-state change construction.
In figure: 1- water injection well, 2- producing well, 3- dry ice pressure pump, 4- destination layer, 5- graininess dry ice, 6- pressure sensing Device, the crack 7-, 8- carbon dioxide, 9- carbon dioxide stream amount detector.
Specific embodiment
The following further describes the present invention with reference to the drawings.
The step of specific implementation of the invention are as follows:
(1) in certain dry-hot-rock geothermal developing zone, progress geologic information prospecting first, according to geothermal distribution regional scope and Dry-hot-rock geothermal gradient determines that Optimal Production well group is arranged as a bite water injection well 1 and four mouthfuls of five well modes of producing well 2(), water filling Well 1 and 2 spacing L=750m of producing well.
(2) it in the hot dry rock developing zone, successively determines 2 position of injection well 1 and producing well, passes through wellbore construction to target Layer 4, depth 2500m, monitoring rock temperature are 280 DEG C, meet business development requirement.
(3) sufficient graininess dry ice 5 is pumped into the circulation of destination layer 4 by dry ice pressure pump 3, vertical point is implemented to destination layer Section fracturing, every section of height 2.5m are divided into 4 sections.
(4) graininess dry ice 5 is implemented to destination layer 4 and recycles pressure break, and pass through 6 monitoring objective layer environment of pressure sensor PressureP 0 , injection dry ice flow is adjusted by dry ice pressure pump 3, guarantees that destination layer has enough fracture pressuresP t
(5) successively to produce into group each well implement above-mentioned (3), (4) step.In work progress, pass through carbon dioxide Detector 9 monitors 8 flow of carbon dioxide in adjacent drilling well, to differentiate 4 fracturing effect of destination layer, until reaching design requirement, stops Only pressure break.
(6) after above-mentioned pressure break is completed, sufficient graininess dry ice 5 is pumped by injection well 1, it is small that 48 are recycled between well group When, while detecting carbon dioxide flow in producing well 2V 0Situation.It effectively avoids crack 7 from being closed, realizes that hot dry rock destination layer 4 produces Raw crack 7 can extend, penetrate through, and ultimately form that permeability is strong, heat exchange area is larger, the artificial heat storage of the ideal of cranny development Layer.
(7) after completing above-mentioned construction, inject a large amount of water at low temperature (20 DEG C -30 DEG C) from injection well 1, artificial heat reservori into After the sufficient heat exchange of row, hyperthermia and superheating water is discharged from producing well 2, generates electricity for hot water, realizes ground thermal extraction.

Claims (2)

1. a kind of carry out the method that the artificial heat storage of hot dry rock is built using graininess dry ice, which is characterized in that make full use of particle Heat absorption, volume expansion pressure increase, generate overcritical titanium dioxide when phase-state change occurs in destination layer dry-heat rock body for shape dry ice The characteristics of carbon, during the entire process of dry ice phase-state change, dry-heat rock body more holds under temperature difference and frac pressure coupling It is also easy to produce volume rupture or the rupture of clump formula, to form Fracture Networks development, the artificial heat reservori with bigger heat exchange area;
The step of it is embodied are as follows:
(1) dry-hot-rock geothermal developing zone carry out geologic information prospecting, determine Optimal Production well group arrange, the production well group by Injection well (1) and producing well (2) composition;Well group arrangement is carried out according to geothermal area range and dry-hot-rock geothermal gradient, well group Arrangement has following several: a bite injection well (1) and two mouthfuls of producing wells (2), a bite injection well (1) and four mouthfuls of producing wells (2), Injection well (1) and the numberical range of producing well (2) spacing L are 500 m -800m;
(2) it in hot dry rock developing zone, determines Optimal Production well group arrangement form, successively determines injection well (1) and producing well (2) Position passes through wellbore construction to destination layer (4), i.e. hot dry rock stratum of the temperature at 200 DEG C or more;
(3) graininess dry ice (5) are pumped into destination layer (4) circulation by dry ice pressure pump (3), destination layer (4) are implemented vertical It is segmented fracturing, height of lift is every section of 2-5m, and every section of height is determined by drilling depth and suffered crustal stress size;
(4) to guarantee fracturing effect, implement graininess dry ice (5) and recycle pressure break, and pass through pressure sensor (6) monitoring objective Layer (4) environmental pressureP 0 , injection graininess dry ice (5) flow is adjusted by dry ice pressure pump (3), guarantees environmental pressureP 0 It is greater than Rock stratum minimum initial cracking pressureP t
(5) above-mentioned (3), (4) step successively are implemented to each well in production well group, in work progress, is detected by carbon dioxide Device (9) monitors carbon dioxide (8) flow in adjacent drilling wellV 0, to differentiate destination layer (4) fracturing effect, wanted until reaching design It asks, stops pressure break;
(6) after above-mentioned pressure break is completed, graininess dry ice (5) is pumped by injection well (1), are recycled 24-48 hours between well group, Carbon dioxide (8) flow in producing well (2) is detected simultaneously, crack (7) is effectively avoided to be closed, realizes what hot dry rock destination layer generated Crack (7) can extend, penetrate through, and ultimately form that permeability is strong, heat exchange area is larger, the artificial heat reservori of ideal of cranny development;
(7) water at low temperature is injected from injection well (1), the temperature of water at low temperature is 20 DEG C -30 DEG C, carries out adequately heat in artificial heat reservori After exchange, the discharge from producing well (2) of hyperthermia and superheating water generates electricity for hot water, realizes ground thermal extraction.
2. a kind of method for carrying out the artificial heat storage construction of hot dry rock using graininess dry ice according to claim 1, special Sign is: the step (3), (4), its particle size diameter size of graininess dry ice (5) used in (6) are 2-4mm, and temperature is low In -78.5 DEG C, it is pumped by the dry ice pressure pump (3) that well head is arranged to destination layer (4).
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6668554B1 (en) * 1999-09-10 2003-12-30 The Regents Of The University Of California Geothermal energy production with supercritical fluids
JP2014185822A (en) * 2013-03-25 2014-10-02 Mitsui Kagaku Sanshi Kk Geothermal heat utilization heat exchanger and heat pump system using the same
CN104675374A (en) * 2013-11-29 2015-06-03 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Unconventional CO2 fracturing site operation technology
CN105546860A (en) * 2016-02-17 2016-05-04 姚国敏 Device and method for extracting and using geothermal energy
CN105696996A (en) * 2016-01-29 2016-06-22 太原理工大学 Building method for artificial dry-hot-rock geothermal reservoir

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6668554B1 (en) * 1999-09-10 2003-12-30 The Regents Of The University Of California Geothermal energy production with supercritical fluids
JP2014185822A (en) * 2013-03-25 2014-10-02 Mitsui Kagaku Sanshi Kk Geothermal heat utilization heat exchanger and heat pump system using the same
CN104675374A (en) * 2013-11-29 2015-06-03 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Unconventional CO2 fracturing site operation technology
CN105696996A (en) * 2016-01-29 2016-06-22 太原理工大学 Building method for artificial dry-hot-rock geothermal reservoir
CN105546860A (en) * 2016-02-17 2016-05-04 姚国敏 Device and method for extracting and using geothermal energy

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"中原油田二氧化碳压裂改造初探";曾雨辰;《天然气勘探与开发》;20051231;第28卷(第2期);第27-31页 *

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