Prospecting method for structural trap type weak open layered karst thermal storage geothermal field
An open, tectonic circle technology, applied in geophysical surveys, instruments, etc., can solve problems such as limited guidance and achieve accurate ore prospecting
Active Publication Date: 2019-05-03
山东省地质矿产勘查开发局 +1
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Problems solved by technology
Usually, the target area of the prospective area determined by remote sensing prospecting is also very large, and the guidance for the actual detailed investigation work to be carried out in the next step is very limited.
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Embodiment 1
[0027] Example 1, such as figure 1 (1) First apply remote sensing technology and remote sensing satellite data, through image information extraction, establish interpretation signs related to geothermal resources, conduct field verification, and quickly and accurately interpret the formation, rock mass, and structure of geothermal resources in the target area Translation, preliminarily delineate the geothermal anomaly area;
[0028] (2) Further carry out field work of geothermal geological survey, investigate whether there are geothermal wells and their distribution in abnormal areas, select suitable geothermal wells for geothermal survey, and further analyze the distribution law of geothermal field. Carry out large-scale surveys of areas where geothermal fields may be formed with high geothermal values, and analyze several major elements that form geothermal fields: heat source, water source, and channel;
[0029] (3) Channel analysis: Based on the analysis results of step (...
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The invention relates to a prospecting method for the structural trap type weak open layered karst thermal storage geothermal field. The method comprises steps that (1), firstly, the remote sensing technology and remote sensing satellite data are utilized, through image information extraction, an interpretation mark related to geothermal resources is established, field verification is performed, the strata, the rock mass and the structure of the geothermal resources in the target area are quickly and accurately interpreted, and preliminary delineation of a geothermal anomaly area is performed;(2), further development of geothermal geological survey field work is performed, whether the anomaly area has geothermal wells and their distribution are investigated, the suitable geothermal wellsare selected for geothermal surveying, and the distribution law of geothermal fields is further analyzed; (3), large-scale exploration of areas where geothermal fields may be formed with higher groundtemperature values is performed, and several major factors for forming the geothermal fields are analyzed, including a heat source, a water source and a channel; (4), model establishment is performed; and (5), discrimination of geothermal enrichment areas is performed.
Description
technical field [0001] The invention belongs to the technical field of geothermal prospecting, and in particular relates to a method for prospecting a structurally closed type weakly open layered karst heat storage geothermal field. Background technique [0002] Mineralization has a close genetic relationship with geological tectonics and the formation and evolution of regional structural types. 1) Geological structure has control over the formation of ore deposits. Large-scale fault structures and fold structures directly control the formation and distribution of ore deposits (such as hydrothermal deposits), and they provide favorable migration channels and accumulation sites for ore-forming materials. 2) The emergence of geological structures promoted the re-enrichment and re-embedding of pre-formed ore deposits (ore bodies). The combination of tectonic stress and other geological factors (thermodynamics, geological fluids, etc.) endows the initially enriched ore-forming...
Claims
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IPC IPC(8): G01V9/00
Inventor 康凤新马哲民陈洪年宋帅良孙英波贾琛史启朋
Owner 山东省地质矿产勘查开发局