Comparative analysis of ground source heat pump drilling construction techniques under complex geological conditions

Abstract

The buried pipe is an important part of the geothermal heat pumps system. One of the main reasons for the high initial installation cost of the ground source heat pump system is that its heavy drilling workload, long construction period and high cost account for the system cost. Especially in some complex geological conditions, the high proportion of drilling costs directly increase the overall cost of the geothermal heat pumps system, which to a certain extent restricts the popularization and application of geothermal heat pumps system. Based on the comparative analysis of different types of geological conditions and different ground source heat pump drilling technologies, this paper starts with the research and analysis of basic geological structure. On the premise of meeting the requirements of the system, this paper aims to improve the drilling efficiency and reduce the cost by rationally designing pipe Wells and optimizing the drilling technology scheme.