Geothermal heating area determination method and device

Abstract

The invention provides a geothermal heating area determining method and device. The method comprises the steps that geothermal reservoir data and geothermal heating parameters of a target area are obtained; determining geothermal heating economic index evaluation data of the target area according to the geothermal resource data, the geothermal heating parameter data and a preset heating cost evaluation model; and determining a geothermal heating area in the target area according to the geothermal heating economic index evaluation data. According to the method, the geothermal heating economic index evaluation data of different positions of the target area are quantitatively compared and analyzed based on the obtained regional geothermal resource basic data, and the area with the geothermal heating advantage is determined based on the quantitative analysis result; and a favorable area which is most suitable for economical geothermal heating can be visually selected, so that a solid data and data foundation is laid for the next geothermal exploration and development.

Description

Technical Field

[0001] The invention relates to geothermal exploration and development technology, and in particular to a method and device for determining a geothermal heating area. Background Art

[0002] Geothermal resources are a clean energy source, which is of great significance for energy conservation, emission reduction, haze control, etc. At present, the uneven distribution of geothermal resources leads to different utilization levels of geothermal resources, and because there are many factors involved in the development and utilization of geothermal energy, it is not feasible to use geothermal resources for industrial / community heating in all regions, so it is necessary to evaluate geothermal resources and geothermal heating areas.

[0003] In the prior art, the area selection and evaluation work carried out for geothermal heating is mainly carried out based on the geothermal resource conditions, and an effective method for directly conducting economic evaluation of geothermal heating on a regional plane has not been formed. Summary of the invention

[0004] In view of the defects existing in the selection of geothermal heating areas in the prior art, in order to overcome at least one of the defects, the present invention provides a method for determining a geothermal heating area, comprising:

[0005] Obtain geothermal reservoir data and geothermal heating parameters in the target area;

[0006] Determining geothermal heating economic index evaluation data for the target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model;

[0007] The geothermal heating area within the target area is determined according to the geothermal heating economic index evaluation data.

[0008] In the embodiment of the present invention, the geothermal reservoir data include: the geothermal reservoir data include: the burial depth of the top of the geothermal reservoir, the water output of a single well, the water output temperature at the top of the reservoir and the return water temperature;

[0009] The geothermal heating parameter data include: geothermal heating total investment magnification coefficient, geothermal heating annual unit area net income data, geothermal heating equivalent heat capacity and equivalent resource tax rate.

[0010] In an embodiment of the present invention, the geothermal heating economic index evaluation data of the target area is determined according to the geothermal resource data, geothermal heating parameters and a pre-established heating cost evaluation model, including:

[0011] Determining model parameters of a preset heating cost evaluation model according to the geothermal heating parameters;

[0012] The geothermal heating economic index evaluation data of the target area is determined based on the geothermal reservoir data and the heating cost evaluation model after the model parameters are determined.

[0013] In the embodiment of the present invention, the geothermal reservoir data further includes: geothermal reservoir coordinate data;

[0014] The geothermal heating parameters also include: drilling unit price data, the number of wells required for a single group of wells, investment magnification factor, heating charge unit price, annual operation and maintenance fee unit price, heating power per unit area, heat exchange efficiency, annual heating period and resource tax rate.

[0015] In an embodiment of the present invention, the model parameters of the pre-set heating cost evaluation model are determined according to the geothermal heating parameters, including:

[0016] Determine the total investment magnification factor for geothermal heating based on the investment magnification factor, drilling unit price data, and the number of wells required for a single group of wells;

[0017] Determine the annual net income per unit area based on the heating charge unit price and annual operation and maintenance fee unit price;

[0018] Determine the equivalent heat capacity according to the heat exchange efficiency and heating power per unit area;

[0019] The equivalent resource tax rate is determined based on the resource tax rate and the annual heating period.

[0020] In the embodiment of the present invention, the determining of the geothermal heating area in the target area according to the geothermal heating economic index evaluation data includes:

[0021] Generate a geothermal heating economic index evaluation distribution map according to the coordinate position data and the geothermal heating economic index evaluation data;

[0022] The geothermal heating area within the target area is determined according to the geothermal heating economic index evaluation distribution map.

[0023] At the same time, the present invention also provides a geothermal heating area determination device, comprising:

[0024] A data acquisition module, used to acquire geothermal reservoir data and geothermal heating parameters in a target area;

[0025] An evaluation module, used to determine geothermal heating economic index evaluation data of a target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model;

[0026] The determination module is used to determine the geothermal heating area within the target area according to the geothermal heating economic indicator evaluation data.

[0027] In the embodiment of the present invention, the evaluation module includes:

[0028] A parameter determination unit, used to determine model parameters of a preset heating cost evaluation model according to the geothermal heating parameters;

[0029] The evaluation unit is used to determine the geothermal heating economic index evaluation data of the target area according to the geothermal reservoir data and the heating cost evaluation model after the model parameters are determined.

[0030] At the same time, the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the above method is implemented when the processor executes the computer program.

[0031] At the same time, the present invention also provides a computer-readable storage medium, which stores a computer program for executing the above method.

[0032] The present invention provides a method and device for determining a geothermal heating area, which obtains geothermal reservoir data and geothermal heating parameters of a target area, determines geothermal heating economic index evaluation data of the target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model, and determines the geothermal heating area within the target area according to the geothermal heating economic index evaluation data. The present invention quantitatively compares and analyzes geothermal heating economic index evaluation data of different locations in the target area based on the acquired regional geothermal resource basic data, determines an area with more geothermal heating advantages based on the quantitative analysis results, and can also intuitively select the most suitable favorable area for geothermal economic heating to lay a solid data and information foundation for the next step of geothermal exploration and development.

[0033] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A flow chart of a method for determining a geothermal heating area provided by the present invention;

[0036] Figure 2 A block diagram of a geothermal heating area determination device provided by the present invention;

[0037] Figure 3A schematic diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The uneven distribution of geothermal resources leads to different utilization levels of geothermal resources in different regions. The cost / income structure in the process of geothermal development and utilization is different, and the drilling costs and heating charges in various regions vary greatly. It also directly determines that it is not feasible to use geothermal resources for industrial / community heating in all regions. Therefore, the present invention provides a method for determining geothermal heating areas, which determines the geothermal heating economic index evaluation data of the target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model of the target area, and determines the geothermal heating area in the target area according to the geothermal heating economic index evaluation data. A set of methods for quantitative economic evaluation of regional geothermal heating is formed, which is convenient for geothermal heating economic evaluation, has accurate and reliable index parameters, and has strong regional contrast, so as to meet the actual needs of conducting accurate economic evaluation in the early stage of geothermal development and utilization.

[0040] like Figure 1 FIG. 1 is a flow chart of a method for determining a geothermal heating area provided by the present invention, which includes:

[0041] Step S101, obtaining geothermal reservoir data and geothermal heating parameters of the target area;

[0042] Step S102, determining geothermal heating economic index evaluation data of the target area according to the geothermal resource data, geothermal heating parameter data and a preset heating cost evaluation model;

[0043] Step S103, determining the geothermal heating area within the target area according to the geothermal heating economic index evaluation data.

[0044] The geothermal heating area determination method provided by the present invention determines the geothermal heating economic indicator evaluation data of the target area according to the geothermal resource data, the geothermal heating parameter data and the pre-set heating cost evaluation model, and determines the geothermal heating area within the target area in combination with the geothermal heating economic indicator evaluation data, thereby forming a set of methods for quantitative economic evaluation of regional geothermal heating that is convenient for geothermal heating economic evaluation, has accurate and reliable indicator parameters and strong regional comparison, so as to meet the actual needs of conducting accurate economic evaluation in the early stage of geothermal development and utilization.

[0045] The technical solution of the present invention is further described in detail below in conjunction with a specific embodiment. This embodiment provides a method for quantitatively evaluating the economic efficiency of regional geothermal heating, comprising the following steps:

[0046] S1. Obtain basic data of regional geothermal resources;

[0047] Acquiring sufficient and effective geothermal resource basic data is an important prerequisite for conducting geothermal resource and economic evaluation. Based on the parameters required for geothermal economic evaluation, this embodiment collects geothermal resource basic data at different locations and different wells in the region in advance according to regional geological surveys and geothermal drilling conditions. The geothermal resource basic data in this embodiment mainly includes but is not limited to the top burial depth d (m) of the regional geothermal reservoir, the top temperature T1 (℃) of the geothermal reservoir, the final return water temperature T0 (℃), the geothermal water / steam output Q (m 3 / h), water / steam ratio r and coordinate positions of each data;

[0048] S2. Investigate local geothermal development methods and geothermal heating cost / income structure, and obtain basic economic data of regional geothermal heating;

[0049] Different geothermal heating methods and cost / income structures directly determine the economic feasibility of local geothermal heating. Therefore, it is necessary to understand in advance the initial investment, annual income and annual cost data that affect geothermal heating in the region. The data that determines the economic feasibility of local geothermal heating, namely the regional geothermal heating economic data, include:

[0050] Drilling unit length investment V u1 (10,000 yuan / m), other units' investment V ui (10,000 yuan / unit) and quantity n i , the total amount of other investments V' (10,000 yuan) or the total investment magnification factor α (i.e. the ratio of total investment to drilling investment, usually 1 to 3), the unit price of heating charges I u1 (Yuan / m 2 ), annual heating days t (days), annual unit area operation and maintenance cost C u1 (Yuan / m 2 ), annual unit geothermal water resource tax cost C u2 (Yuan / m 2 ), heating power per unit area P (W / m 2 ), heat exchange efficiency η, etc.;

[0051] S3. Form a plane distribution map of regional geothermal heating basic data through interpolation and segmentation;

[0052] The research scope boundary of the target area is determined according to the coordinate position. According to the geothermal resources and economic evaluation basic data obtained in steps S1 and S2, the existing variable data are interpolated and divided according to the same grid density. In this embodiment, drawing software such as surfer software is used to finally obtain a plane distribution map of regional geothermal basic or economic evaluation data, including: regional surface temperature T0 distribution map, reservoir top depth d distribution map, reservoir top temperature T1 distribution map, reservoir water yield Q distribution map, etc.

[0053] If the study area involves multiple geothermal reservoirs from top to bottom, the distribution maps of regional surface temperature, reservoir top depth, reservoir top temperature, reservoir water yield, etc. can be obtained for each reservoir.

[0054] S4. Form a planar distribution map of regional geothermal heating economic parameters based on the economic evaluation model;

[0055] The construction of the economic evaluation model in this embodiment includes: constructing a geothermal heating economic evaluation model based on the regional geothermal initial investment, cost and income structure;

[0056] The economic evaluation model is one of the key factors that determine whether the economic evaluation results of geothermal heating are reliable. The economic analysis involved in this embodiment is carried out on a group of wells (including one heat extraction well and its corresponding reinjection well);

[0057] In this embodiment, the parameters involved in the constructed economic evaluation model mainly include: initial investment V, annual cost C and annual income I. The basic model of the economic evaluation model in this embodiment is:

[0058] SPP=V / (IC) (1)

[0059] Where SPP stands for static payback period, which reflects the ratio of initial investment V to annual income (the difference between annual income and annual cost, IC), that is, the investment payback period without considering the time effect.

[0060] The initial investment V of geothermal heating involved in this embodiment mainly comprises: exploration investment V0, drilling investment V1, automatic control system investment V2, heat exchange station investment V3 and heating pipe network investment V4, etc.

[0061] Among them, the drilling investment V1 is closely related to the drilling depth d; assuming that the drilling depth is consistent with the burial depth of the reservoir top, the drilling unit price V u1 (10,000 yuan / m) remains unchanged, the total drilling investment V1 can be expressed as:

[0062] V1=V u1 ×d×n1 (2)

[0063] In the formula, n1 represents the number of wells required for a group of wells: if the development mode is "one production and one injection", then n1 = 2; if it is "one production and two injections", then n2 = 3.

[0064] The investment in the automatic control system V2 and the investment in the heat exchange station V3 are mainly related to the number of automatic control systems n2 and the number of heat exchange stations n3 required for a single group of wells, namely:

[0065] V2=V u2 ×n2 (3)

[0066] V3=V u3 ×n3 (4)

[0067] Among them, V u2 and V u3 They represent the unit price of the automatic control system (10,000 yuan / unit) and the unit price of the heat exchange station (10,000 yuan / unit) respectively.

[0068] The heating network investment V4 is mainly related to the distance of the network. Let the unit price of the network per unit length be V u4 (10,000 yuan / m), the length of the pipe network controlled by a single group of wells is l4 (m). According to the numerical simulation results, it can usually be taken as 500±50m, then V4 can be expressed as:

[0069] V4=V u4 ×l4 (5)

[0070] Therefore, the total initial investment V can be expressed as:

[0071] V=V0+V1+V2+V3+V4=V0+V u1 ×d×n1+V u2 ×n2+V u3 ×n3+V u4 ×l4 (6)

[0072] Since the exploration investment V0 is a common investment in different locations in the region and does not affect the economic comparison and optimization in the region, it is not included in the calculation in this embodiment; the drilling investment V1 is the key to the total investment, so for simplicity, the investment magnification coefficient α is set, and the total initial investment is expressed as:

[0073] V=α×V1=α×V u1 ×n1×d (7)

[0074] The amplification factor α can be 1 to 3 according to actual conditions.

[0075] The economic evaluation model in this embodiment mainly considers the income from district heating charges. If there are other incomes, they can also be considered. Therefore, the total annual income I of geothermal heating can be expressed as:

[0076] I=I1+I'=I u1×S+I' (8)

[0077] In the formula, I u1 Representative geothermal heating unit price (yuan / m 2 ), which can be determined according to the actual local heating charges; S represents the actual heating area (m 2 ), I' represents other income excluding heating charges, such as government subsidies.

[0078] The heating area S is based on the actual geothermal resource supply capacity, heating power per unit area P (W / m 2 ) and heat transfer efficiency η are jointly determined by:

[0079] S = 1000 × C w ×Q×(T1-T0)×η / P / 3600 (9)

[0080] In the formula, C w is the specific heat capacity of water (J / (kg·℃)), T1 is the top temperature of the geothermal reservoir, T0 is the final return water temperature, Q is the geothermal water / steam output, P is the heating power per unit area, and η is the heat exchange efficiency. Therefore, the total annual income can be expressed as:

[0081] I=I u1 ×S+I'=I u1 ×C w ×Q×(T1-T0)×η / P / 3.6 / 10000+I' (10)

[0082] The annual total cost C mainly includes the annual operation and maintenance cost C1 and the resource tax cost C2, namely:

[0083] C=C1+C2 (11)

[0084] Among them, the annual operation and maintenance cost C1 is mainly composed of the annual unit area heating cost C u1 and the heating area S, namely:

[0085] C1=C u1 ×S / 10000 (12)

[0086] According to different regional conditions, usually C u1 8~15 yuan / m 2 ; The resource tax cost C2 is mainly related to the amount of geothermal water used and can be expressed as:

[0087] C2=C u2 ×m2 / 10000 (13)

[0088] In the formula, m2 represents the total amount of geothermal water used annually, which can be further expressed as:

[0089] m2=Q×24×t (14)

[0090] t is the annual heating days in the local area; therefore, the basic economic evaluation model can be expressed as:

[0091] SPP=V / (IC)=(V0+V u1 ×d×n1+V u2 ×n2+V u3 ×n3+V u4 ×l4) / [(I u1 –

[0092] C u1 )×C w ×Q×(T1-T0)×η / P / 3.6 / 10000+24×C u2 ×Q×t / 10000+I'] (15)

[0094] Without considering other incomes such as exploration investment and policy subsidies and simplifying the cost by the magnification factor, the above economic evaluation model can be simplified as follows:

[0095] SPP=α×V u1 ×d×n1 / [(I u1 –C u1 )×C w ×Q×(T1-T0)×η / P / 36000+0.0024×C u2 ×Q×t] (16)

[0097] If the unit depth total investment magnification coefficient ε=α×V u1 ×n1, let annual net income per unit area I u '=I u1 –C u1 , let the equivalent heat capacity k w '=C w ×η / P / 36000, let the equivalent resource tax rate C u2 '=0.0024×C u2 ×t, the economic evaluation model preset in this embodiment can be further simplified as follows:

[0098]

[0099] It can be seen that in a certain area, the cost magnification factor α, the drilling price per linear meter V u1 , the number of wells required for a single group of wells n1, the unit price of heating charges I u1 Specific heat capacity of water C w , heat transfer efficiency η, heating power per unit area P, heating period t and resource tax rate C u2Under the premise that the overall value is a constant, the static payback period SPP mainly depends on the top depth d of the thermal reservoir, the water output of a single well Q, the water output temperature T1 at the top of the reservoir and the return water temperature T0.

[0100] According to the economic evaluation model constructed in this embodiment, the basic constant economic parameters within the input area (including cost magnification factor α, drilling unit price per linear meter V u1 , the number of wells required for a single group of wells n1, the unit price of heating charges I u1 Specific heat capacity of water C w , heat transfer efficiency η, heating power per unit area P, heating period t and resource tax rate C u2 etc.), forming an economic evaluation model that only lacks geothermal resource parameters, namely:

[0101] SPP=f(d,Q,T1,T0) (13)

[0102] Combined with the regional reservoir top depth d distribution map, reservoir top temperature T1 distribution map, surface temperature T0 distribution map and reservoir water yield Q distribution map with the same grid density formed by S3, a functional relationship is established through an economic evaluation model that only lacks geothermal resource parameters, and the geothermal resource parameter distribution maps of each region are converted into geothermal heating economic parameter SPP distribution maps using functional operations.

[0103] That is, in this embodiment, the geothermal reservoir data include: the burial depth of the top of the geothermal reservoir, the water output of a single well, the water output temperature at the top of the reservoir and the return water temperature;

[0104] The geothermal heating parameter data include: geothermal heating total investment magnification coefficient, geothermal heating annual unit area net income data, geothermal heating equivalent heat capacity and equivalent resource tax rate.

[0105] In an embodiment of the present invention, the geothermal heating economic index evaluation data of the target area is determined according to the geothermal resource data, geothermal heating parameters and a pre-established heating cost evaluation model, including:

[0106] Determining model parameters of a preset heating cost evaluation model according to the geothermal heating parameters;

[0107] The geothermal heating economic index evaluation data of the target area is determined based on the geothermal reservoir data and the heating cost evaluation model after the model parameters are determined.

[0108] In the embodiment of the present invention, the geothermal reservoir data further includes: geothermal reservoir coordinate data;

[0109] The geothermal heating parameters also include: drilling unit price data, the number of wells required for a single group of wells, investment magnification factor, heating charge unit price, annual operation and maintenance fee unit price, heating power per unit area, heat exchange efficiency, annual heating period and resource tax rate.

[0110] S5. Based on the distribution map of geothermal development economic parameters, select the areas with favorable regional geothermal economic heating.

[0111] In this embodiment, combined with the formed regional geothermal heating economic parameter distribution map, the static payback period SPP of each region can be quantitatively compared and analyzed. Locations with short static payback periods have more advantages in geothermal economic heating than locations with long static payback periods. At the same time, based on the geothermal heating economic parameter distribution map, the most suitable favorable areas for geothermal economic heating within the region can be intuitively selected, laying a solid data and information foundation for the next step of geothermal exploration and development.

[0112] In order to enable ordinary technicians in the field to have a deeper understanding of the method for quantitatively evaluating the economic efficiency of regional geothermal heating in the patent of this invention, the method for quantitatively evaluating the economic efficiency of regional geothermal heating provided by the present invention will be described in detail below by taking area A as an example.

[0113] Step 1: Obtain basic data on regional geothermal resources;

[0114] Obtaining sufficient and effective basic data on geothermal resources is an important prerequisite for conducting geothermal resource and economic evaluation. Based on the parameters required for geothermal economic evaluation, and targeting the geological survey and geothermal drilling conditions in area A, basic data on geothermal resources at different locations and different wells in the region are collected in advance, mainly including the top burial depth d (m) of the geothermal reservoir in area A, the top temperature T1 (℃), the surface temperature T0 (℃), the geothermal water / steam output Q (m 3 / h) and geothermal extraction-injection mode. Among them, due to the small scope of area A, the overall area is only about 35.64km 2 Therefore, the surface temperature T0 does not change much, and the return water temperature can also be approximately taken as the surface temperature T0 = 15°C; the water output Q (m 3 / h) can also be taken as a constant, that is, 100m 3 / h; This area mainly adopts the "one extraction and one injection" geothermal development model, so the total number of wells in a single group is n1=2.

[0115] Step 2: Investigate local geothermal development methods and geothermal heating cost / income structure to obtain basic data on regional geothermal heating economics;

[0116] Different geothermal heating methods and cost / income structures directly determine the economic feasibility of local geothermal heating. Therefore, it is necessary to know the initial investment, annual income and annual cost data of geothermal heating in area A in advance. The economic data collected in this embodiment are all constants, mainly including: the unit investment V of drilling u1 (take 20,000 yuan / m), total investment magnification factor α (i.e. the ratio of total investment to drilling investment, based on the actual situation of the work in this area, take the value of 2.0), heating charge unit price I u1 (Take 19 yuan / m 2 ), annual operation and maintenance cost unit price C u1 (10 yuan / m 2 ), heating power per unit area P (take 40W / m 2 ), heat transfer efficiency η (take 90%), annual heating period t (120 days) and resource tax rate C u2 (5 yuan / m 3 ), and there is no other income such as government subsidies.

[0117] Step 3: Form a plane distribution map of regional geothermal heating basic data through interpolation and segmentation;

[0118] Determine the boundaries of area A. Based on the basic data on geothermal resources and economic evaluation collected in steps one and two, use surfer drawing software within the research scope to interpolate and divide the existing variable data according to a grid density of 500×500, and finally obtain a planar distribution map of regional geothermal basic or economic data.

[0119] Considering that the main variables in region A are the top depth d of the geothermal reservoir and the top temperature T1 of the geothermal reservoir, the main distribution maps of the top depth d and the top temperature T1 of the geothermal reservoir in region A are formed.

[0120] Step 4: Combine the economic evaluation model to form a planar distribution map of regional geothermal heating economic parameters;

[0121] According to the economic evaluation model constructed in the present invention, the basic constant economic parameters of region A are input, including the cost magnification factor α, the drilling unit price per linear meter V u1 , the number of wells required for a single group of wells n1, the unit price of heating charges I u1 Specific heat capacity of water C w , heat transfer efficiency η, heating power per unit area P, heating period t and resource tax rate C u2 As shown in Table 1:

[0122] Table 1 Main constant parameters of geothermal heating in region A

[0123]

[0124]

[0125] That is, the total investment magnification factor of geothermal heating is determined according to the investment magnification factor, the drilling unit price data, and the number of wells required for a single group of wells;

[0126] Determine the annual net income per unit area based on the heating charge unit price and annual operation and maintenance fee unit price;

[0127] Determine the equivalent heat capacity according to the heat exchange efficiency and heating power per unit area;

[0128] The equivalent resource tax rate is determined based on the resource tax rate and the annual heating period.

[0129] After substitution, an economic evaluation model for region A that only lacks geothermal resource parameters can be formed, namely:

[0130]

[0131] Combined with the reservoir top depth d distribution map of area A with the same grid density formed in step three and the reservoir top temperature T1 distribution map of area A, a functional relationship is established through an economic evaluation model that only lacks geothermal resource parameters, and functional operations are used to convert the geothermal resource parameter distribution maps of various locations into geothermal heating economic parameter SPP distribution maps.

[0132] Step 5: Based on the geothermal development economic parameter SPP distribution map, evaluate the economic feasibility of regional geothermal economic heating;

[0133] The SPP distribution map of geothermal heating economic parameters in area A can be combined to quantitatively compare and analyze the static payback periods at different locations in the region. Locations with short static payback periods have more advantages in geothermal economic heating than locations with long static payback periods.

[0134] Those skilled in the art should understand that accurate acquisition of geothermal resources and development parameters is an important prerequisite for accurate economic evaluation of geothermal heating, and the accuracy and richness of actual drilling and ground survey data can affect the accuracy of the subsequent economic evaluation of geothermal heating. Therefore, in order to ensure that the calculation results of this method can effectively guide the further development of geothermal heating in the local and neighboring areas, it is necessary to carry out sufficient geothermal geological exploration and investigation before the economic evaluation, so that the economic evaluation parameters obtained have a higher degree of credibility.

[0135] At the same time, the present invention also provides a device for determining a geothermal heating area, such as Figure 2 As shown, the device comprises:

[0136] Data acquisition module 201, used to acquire geothermal reservoir data and geothermal heating parameters in a target area;

[0137] An evaluation module 202, for determining geothermal heating economic index evaluation data of a target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model;

[0138] The determination module 203 is used to determine the geothermal heating area within the target area according to the geothermal heating economic index evaluation data.

[0139] In the embodiment of the present invention, the evaluation module 202 includes:

[0140] A parameter determination unit, used to determine model parameters of a preset heating cost evaluation model according to the geothermal heating parameters;

[0141] The evaluation unit is used to determine the geothermal heating economic index evaluation data of the target area according to the geothermal reservoir data and the heating cost evaluation model after the model parameters are determined.

[0142] An embodiment of the present invention further provides an electronic device, which may be a desktop computer, a tablet computer, a mobile terminal, etc., but the present embodiment is not limited thereto. In this embodiment, the electronic device may refer to the description of the method embodiment, the contents of which are incorporated herein, and the repeated parts are not repeated.

[0143] Figure 3 FIG. 6 is a schematic block diagram of a system structure of an electronic device 600 according to an embodiment of the present invention. Figure 3 As shown, the electronic device 600 may include a central processor 100 and a memory 140; the memory 140 is coupled to the central processor 100. It should be noted that this figure is exemplary; other types of structures may also be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0144] In one embodiment, the geothermal heating area determination function may be integrated into the central processor 100. The central processor 100 may be configured to perform the following control:

[0145] Obtain geothermal reservoir data and geothermal heating parameters in the target area;

[0146] Determining geothermal heating economic index evaluation data for the target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model;

[0147] The geothermal heating area within the target area is determined according to the geothermal heating economic index evaluation data.

[0148] In another embodiment, the geothermal heating area determination device can be configured separately from the central processor 100. For example, the geothermal heating area determination device can be configured as a chip connected to the central processor 100, and the geothermal heating area determination function is realized through the control of the central processor.

[0149] like Figure 3 As shown, the electronic device 600 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, and a power supply 170. It is worth noting that the electronic device 600 does not necessarily have to include Figure 3 In addition, the electronic device 600 may also include Figure 3 For components not shown, reference may be made to the prior art.

[0150] like Figure 3 As shown, the central processor 100 is sometimes also referred to as a controller or an operation control, and may include a microprocessor or other processor devices and / or logic devices. The central processor 100 receives inputs and controls the operations of various components of the electronic device 600.

[0151] The memory 140 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory or other suitable devices. The above-mentioned information related to the failure may be stored, and a program for executing the relevant information may also be stored. The CPU 100 may execute the program stored in the memory 140 to implement information storage or processing.

[0152] The input unit 120 provides input to the CPU 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used to display display objects such as images and text. The display may be, for example, an LCD display, but is not limited thereto.

[0153] The memory 140 may be a solid-state memory, such as a read-only memory (ROM), a random access memory (RAM), a SIM card, etc. It may also be a memory that saves information even when the power is off, can be selectively erased, and is provided with more data, examples of which are sometimes referred to as EPROMs, etc. The memory 140 may also be some other type of device. The memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application / function storage unit 142, which is used to store application programs and function programs or processes for executing the operation of the electronic device 600 through the central processor 100.

[0154] The memory 140 may also include a data storage unit 143 for storing data, such as contacts, digital data, pictures, sounds, and / or any other data used by the electronic device. The driver storage unit 144 of the memory 140 may include various drivers for communication functions of the electronic device and / or for executing other functions of the electronic device (such as messaging applications, address book applications, etc.).

[0155] The communication module 110 is a transmitter / receiver 110 that transmits and receives signals via an antenna 111. The communication module (transmitter / receiver) 110 is coupled to the central processor 100 to provide input signals and receive output signals, which may be the same as the case of a conventional mobile communication terminal.

[0156] Based on different communication technologies, multiple communication modules 110 may be provided in the same electronic device, such as a cellular network module, a Bluetooth module and / or a wireless LAN module. The communication module (transmitter / receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide an audio output via the speaker 131 and receive an audio input from the microphone 132, thereby realizing a common telecommunication function. The audio processor 130 may include any suitable buffer, decoder, amplifier, etc. In addition, the audio processor 130 is also coupled to the central processor 100, so that the sound can be recorded on the local machine through the microphone 132, and the sound stored on the local machine can be played through the speaker 131.

[0157] At the same time, the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the above method is implemented when the processor executes the computer program.

[0158] At the same time, the present invention also provides a computer-readable storage medium, which stores a computer program for executing the above method.

[0159] For those skilled in the art, the implementation of the geothermal heating area determination device, computer equipment and computer-readable storage medium provided by the present invention can be clearly understood through the description of the aforementioned embodiments, and will not be repeated here.

[0160] The present invention obtains geothermal reservoir data and geothermal heating parameters of the target area, determines geothermal heating economic index evaluation data of the target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model, and determines the geothermal heating area in the target area according to the geothermal heating economic index evaluation data. The present invention quantitatively compares and analyzes geothermal heating economic index evaluation data of different locations in the target area based on the acquired regional geothermal resource basic data, determines the area with more geothermal heating advantages based on the quantitative analysis results, and can also intuitively select the most suitable favorable area for geothermal economic heating to lay a solid data and information foundation for the next step of geothermal exploration and development.

[0161] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0162] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0163] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0164] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0165] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A method for determining a geothermal heating area, characterized in that: The method includes: Obtain geothermal reservoir data and geothermal heating parameters in the target area; Determining geothermal heating economic index evaluation data for the target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model; The geothermal heating area within the target area is determined according to the geothermal heating economic index evaluation data.

2. The method for determining a geothermal heating area according to claim 1, characterized in that: The geothermal reservoir data include: the burial depth of the top of the geothermal reservoir, the water output of a single well, the water output temperature at the top of the reservoir and the return water temperature; The geothermal heating parameter data include: geothermal heating total investment magnification factor, geothermal heating annual unit area net income data, geothermal heating equivalent heat capacity and equivalent resource tax rate; The geothermal heating economic indicator evaluation data include: static payback period data.

3. The method for determining a geothermal heating area according to claim 2, wherein: The geothermal heating economic index evaluation data of the target area determined according to the geothermal resource data, geothermal heating parameters and a pre-established heating cost evaluation model includes: Determining model parameters of a preset heating cost evaluation model according to the geothermal heating parameters; The static payback period data of the target area is determined based on the geothermal reservoir data and the heating cost evaluation model after the model parameters are determined.

4. The method for determining a geothermal heating area according to claim 3, wherein: The geothermal reservoir data also includes: geothermal reservoir coordinate data; The geothermal heating parameters also include: drilling unit price data, the number of wells required for a single group of wells, investment magnification factor, heating charge unit price, annual operation and maintenance fee unit price, heating power per unit area, heat exchange efficiency, annual heating period and resource tax rate.

5. The method for determining a geothermal heating area according to claim 4, characterized in that: The model parameters of the pre-set heating cost evaluation model determined according to the geothermal heating parameters include: Determine the total investment magnification factor for geothermal heating based on the investment magnification factor, drilling unit price data, and the number of wells required for a single group of wells; Determine the annual net income per unit area based on the heating charge unit price and annual operation and maintenance fee unit price; Determine the equivalent heat capacity according to the heat exchange efficiency and heating power per unit area; The equivalent resource tax rate is determined based on the resource tax rate and the annual heating period.

6. The method for determining a geothermal heating area according to claim 4, characterized in that: The geothermal heating area within the target area determined according to the geothermal heating economic index evaluation data includes: Generate a geothermal heating economic index evaluation distribution map according to the coordinate position data and the geothermal heating economic index evaluation data; The geothermal heating area within the target area is determined according to the geothermal heating economic index evaluation distribution map.

7. A geothermal heating area determination device, characterized in that: The device comprises: A data acquisition module, used to acquire geothermal reservoir data and geothermal heating parameters in a target area; An evaluation module, used to determine geothermal heating economic index evaluation data of a target area according to the geothermal resource data, geothermal heating parameter data and a pre-set heating cost evaluation model; A determination module is used to determine the geothermal heating area within the target area according to the geothermal heating economic indicator evaluation data.

8. The geothermal heating area determination device according to claim 7, characterized in that: The evaluation module includes: A parameter determination unit, used to determine model parameters of a preset heating cost evaluation model according to the geothermal heating parameters; The evaluation unit is used to determine the geothermal heating economic index evaluation data of the target area according to the geothermal reservoir data and the heating cost evaluation model after the model parameters are determined.

9. A computer device, characterized in that: The computer device comprises: a memory, a processor and a computer program stored in the memory and executable on the processor, and the method described in claims 1 to 7 is implemented when the processor executes the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program for executing the method according to claims 1-7.

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