Efficient filtration system for geothermal well

Abstract

The invention discloses an efficient filtration system for a geothermal well, and relates to the technical field of geothermal heating. The system includes a top pipe, a middle section pipe and a bottom pipe, the top pipe communicates with the middle section pipe through a detachable pipe opening connecting mechanism, the middle section pipe communicates with the bottom pipe through a fixing flange, the detachable pipe opening connecting mechanism includes a connecting inner pipe and a sleeving outer pipe, and the connecting inner pipe is fixedly mounted with the outer side of the middle section pipe. According to the efficient filtration system for the geothermal well, through the arrangement of the detachable pipe opening connecting mechanism, a lifting rod drives a guide wheel to slidealong the direction of a guide plate, and the connecting inner pipe is connected with the sleeving outer pipe, so that the top pipe is connected with the middle section pipe. Furthermore, the whole connecting process adopts a mode of inserting fixing, compared with the connecting of an existing bolt and a nut, the connecting mode is more convenient, the disassembly and assembly between pipelines can be more quick and efficient, so that the disassembly and assembly can be convenient, and the daily maintenance schedule of a well can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of geothermal heating, in particular to a high-efficiency filtration system applied to geothermal wells. Background technique [0002] Geothermal energy is renewable heat energy from the interior of the earth. It originates from the decay of magma and radioactive substances in the interior of the earth. The heat conducts heat through the formation, and is continuously transferred from the lower high-temperature rock layer to the upper low-temperature rock layer. The reserves are huge and renewable. At present, geothermal energy can be divided into two types from the utilization form, hydrothermal geothermal and dry hot rock. [0003] Hydrothermal geothermal, directly extracting high-temperature hot water through submersible pumps, through surface heat exchange, low-temperature tail water is reinjected into the formation, the whole system is fixed production by irrigation, recharge on the same layer, heat is ...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the only limiting factor for geothermal projects is the recharge volume of recharge wells. If the problem of 100% recharge in the same layer cannot be solved, even if the temperature of the production well is high and the water volume is large, it cannot be used in large quantities. The current geothermal Production and irrigation wells generally adopt the same process, and a single well generally uses the same filter pipe and filter material, but in fact there are differences in the particle size of underground rock formations, and the degree of cementation is also different at different depths. If the same process is used without distinction , has an impact on the sand control and water passing capacity of geothermal wells

Images