Inner Mongolia Autonomous Region Daihai Area Of Liangcheng County Geothermal Resources Evaluation And Forecast Analysis

The project area is located in eastern Liangcheng County, long 7.1km,7km wide from north to south, an area of 50km2. Geographical coordinates:longitude 112°35 '47 "-112°40'45"; north latitude,40 °35'50 "-40°39'37", construction hot hole eyes, DR1 geothermal hole is located in the East North pond, the geographical coordinates of longitude 112 ° 38',30', north latitude 40 ° 38'09 "; DR2 geothermal hole is located in the South pond, the geographical coordinates of longitude 112° 38', 30', north latitude 40 ° 37'23". The project is divided into two stages, the first stage is the ground work,the main work is to collect data and ground geothermal surveying and geophysical prospecting, drilling second stage. Ground geothermal surveying and mapping work carried out in 2012 May, to 2012 the end of 6 geophysical exploration work carried out in 2012 August, to 2012 the end of 10. Geothermal well drilling construction in 2013 July, DR1 in July 10,2013 August 27th, hole drilling, hole, hole depth 230.0 meters. Pumping test in static water level drawdown of water 45.40 meters,47.22 meters,75.08 cubic meters per day, water temperature 37 degrees, the degree of mineralization of water 1.03 grams per liter, HCO3. Cl-Na type geothermal resources is low; the DR2 hole drilling in October 15th September 15,2013, the final hole, hole depth 308.6meters. Pumping test in static water leve1+79.37 meters, drop 83.75 meters deep, water 4483.64 cubic meters per day, water temperature 36 degrees, the degree of mineralization of 1.01 grams per liter of water, which belongs to HCO3-Cl-Na type low temperature geothermal resources. The work belongs to the banded geothermal geothermal, geothermal reservoir of Archaean granite and its fracture zone, according to the comprehensive analysis of drilling, logging and well logging data, the thickness of twenty to thirty meters, the cover layer is mainly composed of a heat the upper reservoir of the Quaternary, Neogene, Paleogene strata. Region faults, deep underground heat transport to provide a good channel, and create a good water and geothermal geological conditions for the. The geothermal field is a small and low temperature geothermal field, using heat storage method and analytical method of geothermal resource in working area were evaluated, geothermal field area of about 0.69 square kilometers, recoverable heat resources amount to one hundred and nineteen billion two hundred million. The analytical method to predict the geothermal field of new extraction volume is one thousand one hundred cubic meters per day, or four hundred and one thousand five hundred cubic meters per year. This exploitation, exploitation of hot water well one hundred years down the depth is 197.72 meters, the average annual waterlevel drawdown value is 1.98 meters, a high degree of assurance.