Geothermal resource evaluation method and apparatus

A technology of geothermal resources and evaluation methods, applied in the field of geothermal resource evaluation, can solve the problem of insufficient certainty in the evaluation of geothermal resources utilization value, and achieve the effects of avoiding blindness, orderly development and utilization, and unique results.

Inactive Publication Date: 2017-08-25
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a method and device for evaluating geothermal resources, which are used to solve the problem of insufficient certainty in evaluating the utilization value of geothermal resources in the prior art

Method used

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  • Geothermal resource evaluation method and apparatus
  • Geothermal resource evaluation method and apparatus
  • Geothermal resource evaluation method and apparatus

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Experimental program
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Embodiment 1

[0068] figure 1 It is a schematic flow chart of a geothermal resource evaluation method according to Embodiment 1 of the present invention; figure 1 As shown, this embodiment provides a geothermal resource evaluation method, which is suitable for geothermal resource evaluation in karst geothermal fields, including:

[0069] The analysis step 101 is to analyze various factors that affect the evaluation of geothermal resources in geothermal fields, and obtain the analysis results. Among them, the various factors include karst reservoir quality, caprock, geothermal gradient, geothermal field area, thermal storage depth and market demand. The results include the value of karst reservoir quality, cap rock, geothermal gradient, geothermal field area, thermal storage depth and market demand.

[0070] Specifically, the evaluation of geothermal resources for karst geothermal fields depends on the geological reserves of geothermal fields and market demand. Among them, the factors that ...

Embodiment 2

[0084] This embodiment is a supplementary description based on the above embodiments.

[0085] figure 2 It is a schematic flow chart of a geothermal resource evaluation method according to Embodiment 2 of the present invention; as figure 2 As shown, the present embodiment provides a geothermal resource evaluation method, and the analysis step 101 includes:

[0086] The quality analysis step 1011 of the karst reservoir is to divide the quality of the karst reservoir into five grades from poor to excellent, and assign a value to the quality of the karst reservoir, wherein the value of the quality of the karst reservoir ranges from 0.1 to 1 Between, the worse the quality of karst reservoir, the smaller the value of karst reservoir quality.

[0087] Specifically, according to the results of oil and gas and geothermal exploration, karst reservoirs are mainly developed in the Middle-Upper Proterozoic (Pt 2+3 ), Lower Paleozoic (Pz 1 ) and Archean (Ar) strata. A single karst g...

Embodiment 3

[0140] This embodiment is an embodiment of a device, which is used to execute the method in the first embodiment above.

[0141] image 3 It is a schematic structural diagram of a geothermal resource evaluation device according to Embodiment 3 of the present invention; as image 3 As shown, this embodiment provides a geothermal resource evaluation device, which is suitable for geothermal resource evaluation in karst geothermal fields, and includes: an analysis module, a calculation module and an evaluation module.

[0142] Among them, the analysis module is used to analyze various factors that affect the evaluation of geothermal resources in geothermal fields and obtain analysis results. Among them, various factors include karst reservoir quality, cap rock, geothermal gradient, geothermal field area, thermal storage depth and market Demand, the analysis results include karst reservoir quality value, cap rock value, geothermal gradient value, geothermal field area value, therm...

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Abstract

The present invention provides a method and device for evaluating geothermal resources, wherein the method is suitable for evaluating geothermal resources in karst geothermal fields, including: an analysis step, analyzing various factors affecting the evaluation of geothermal resources in geothermal fields, and obtaining analysis results; calculating The step of calculating each factor according to the analysis result to obtain the calculation result; the evaluation step of matching the calculation result with the preset label to obtain the evaluation result. By applying the method of the invention, the karst geothermal field can be effectively graded and optimized, and the result is unique, which avoids blindness in exploration of the karst geothermal field, and enables the development and utilization of the karst geothermal field to be carried out more orderly.

Description

technical field [0001] The invention relates to the technical field of exploration and development of geothermal resources, in particular to a method and device for evaluating geothermal resources. Background technique [0002] Geothermal anomalous areas that contain exploitable geothermal resources within accessible depths are called geothermal fields. Among the hydrothermal medium and low temperature geothermal resources in eastern my country, bedrock karst geothermal resources are favored by geothermal development companies due to their high temperature, large single well water production, and easy recharge, and have become the first choice for geothermal development and utilization in eastern my country. important object. Chen Moxiang et al. (1990) estimated the accessible geothermal resources within 3000m (some 4000m) of buried hill karst geothermal heat in the Bohai Bay Basin of North China by using the heat storage volume method. The total heat content of karst hot wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06
CPCG06Q10/06393
Inventor 李朋威何治亮张英冯建赟胡宗全陈新军武晓玲孙杰夫
Owner CHINA PETROLEUM & CHEM CORP
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