Development and Protection of Geothermai Resources in Tianjin China

Abstract

The exploitation and utilization of geothermal resources in Tianjin can be traced back to the 1930s. The successful effluent from Old Xikai well in 1935. Since then, the number of geothermal wells has grown from few to more. Depth of geothermal reservoirs are from shallow to deep, from single to multiple layers. Development and utilization are from simple to intensive. It has promoted the economic development of Tianjin and promoted the exploration and development of geothermal in the whole country, which has attracted the attention of the world. With the development and conservation of geothermal resources, The Tianjin Bureau of Land and Resources has successively issued the following documents for the management of geothermal resources: Circular on further standardizing the way of developing and utilizing geothermal resources to improve the utilization rate of geothermal resources, in order to promote the sustainable utilization of geothermal resources, It is clear that the policy of encouraging supplement recharge wells. Notice on further strengthening the work of geothermal reinjection, requires the heating projects to be approved strictly according to the examination and approval of the double wells (production and rejection). Take a new well must build a reinjection well. By 2017, a total of 249 wells had been produced, with an annual production capacity of 51.81 million cubic meters and a recharge well 217, with an annual recharge capacity of 27.89 million cubic meters recharge rate 54%.