Anning Town Of Hot Springs Geothermal Field Model

Hot Springs Geothermal Field in the town of Anning is a broken deep cycle convective geothermal systems.natural hot spring exposed seven points, which are exposed on the bottom of Tanglang River front terrace aquifer base group, and overflowing from the Tanglang River both sides under the bridge, with "best in the world soup" movement in all directions, the total flow is 118 L/s, vent temperature is 28～47℃. "Best in the world soup" exposed elevation is 1824m, it is the maximum amount of water in the springs, the highest temperature, and the size of beaded bubbles too long. Determination of gas composition showed, mainly composed is N2, plays for the H2O (gas), CO2, Rn, He, Ar, etc., composition similar with the atmosphere,which reflecting the characteristics of water from precipitation. The spring colorless, odorless, crystal clear。In the past the temperature for long-term is 45～47℃, which decreased in recent years, maintained at 43～45℃.In this paper, previous research results, through the research of Hot heat geological background about Springs Geothermal Field in the town of Anning, the use of structural geology, hydrogeology, geophysics, drilling, exploration and other theories and methods of geothermal fields for analysis and research, summarizes geothermal field thermal energy storage exhibition,explore the geothermal field, geothermal reservoir structure, characteristics and boundary conditions.Under the hot spring water exposed and existing measurements, Hot Springs geothermal field was obtained banded structure, combined with thermal energy storage distribution strictly controlled by the Tanglang River fracture characteristics, the hot spring in the field can determine the vertical temperature field to the " best in the world soup "as the center, north-south length of about 200m,100m wide, the spindle-like things closed curve; the vertical temperature gradient is generally greater than 5℃/100m, south of 200～500m range, the geothermal gradient of 2.5～4.0℃/100m, west temperature gradient is less than 2.5℃/100m, north of 100～150m outside the geothermal gradient is less than 2.5～4.0℃/100m; Temperature Curve have four types,include warming type,temperature type,lowering a sudden change type,sudden changes in temperature to cool the other. Combined with Tanglang River fracture,hydrogeological conditions, summarizes the migration characteristics of hot springs, analysis variation of conditions under exploitation and natural conditions.In this paper, Analyzing Permian Qixia Maokou geothermal reservoir characteristics, with the existing hydrogeological parameters, geothermal and geological parameters and other information, using the finite element meshing, study of depth to 100m a diving hot aquifer system. Use feflow software to simulate the heat flow through the field identification and verification.Mading a convincing evidence for the genetic model of the geothermal field.