Geophysical Exploration And Research For Geothermal Energy In Jinyue District, Changchun City

As a green and renewable resources, Geothermal energy have caused moreand more attention.because it avoide the heavy using of traditional energysources to bring resource depletion, environmental pollution problems.There are two large the units of geological structure in Jinyue District,Changchun City: Yishu graben and the Songliao Basin,either, the Yishu graben isa geothermal anomaly zone that controlled by the recent active faults wherehave rich underground water.In this paper, geothermal controlling heated structure is the main object of study,we collected geological and geophysical data in the study area, the analysis andsummary of hydrogeology, geothermal geology and tectonic, rock, strata data,wepreliminary determine the tectonic frame on the work area; through the remotesensing data interpretation, can be delineated geothermal anomaly target area;regional gravity and magnetic, electric (magnetic) method and other geophysicaldata used the delineation of controlling heatstructure,the Comprehensive interpretation were used to delineate of heatcontrolling structure, determine the main object of underground mediumparameters, division of fracture,it is an important method.Through the detection of the following conclusions can be obtained:Comprehensive geophysical methods in the exploration and studying ofthe geothermal field is high efficiency, which can quickly discover geothermalanomaly zone, effectively narrowing the target range in terms of determining thethermal reservoir, Overlay and thermal channels, etc. to determine the positionof controlling the thermal structure, the results can be verified with each other toimprove the accuracy of interpretation, effectively avoiding the multi-solution. The method of Electric (magnetic) is used to determine thethermal structure, the thickness of the cover layer and the distributionof geothermal storage conditions and storage space, the effect is significant.Gravity and magnetic methods in the field of geothermal exploration can bedirectly used to determine the thermal control structure,either as indicativly usedto narrow target range.Electric (magnetic) method is used to identify the structure and extend in thecase of geothermal exploration, the effect is significant...