A sandstone pore-type geothermal recharge method and device
A geothermal and pore technology, applied in water supply devices, drinking water devices, buildings, etc., can solve the problems of wasting geothermal water, prolonging the time of lifting and washing wells, etc., and achieve the goal of reducing waste and shortening the time of raising and washing wells Effect
Active Publication Date: 2018-06-29
BEIJING TALENT NEW ENERGY TECH DEV CO LTD
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Problems solved by technology
[0003] Aiming at the defects in the prior art, the present invention provides a sandstone pore-type geothermal recharge method and device, which are used to solve the problem of prolonging the time for lifting and flushing the well due to the need to lift the pipe and lower the pump when flushing wells in the prior art, thereby wasting geothermal water problem
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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] Such as figure 1 As shown, the embodiment of the present invention provides a sandstone pore-type geothermal recharge method, including:
[0029] S1. Obtain the pressure, temperature, liquid level and / or flow rate of geothermal water in real time;
[0030] S2. According to the pressure, temperature, liquid level and / or flow velocity of th...
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The invention relates to a method and device for sandstone pore type terrestrial heat reinjection. The method comprises the steps of obtaining pressure, temperature, liquid level and / or flow speed of geothermal water in real time; judging whether each parameter of the geothermal water meets a first preset condition according to the pressure, temperature, liquid level and / or flow speed obtained by a monitoring unit; generating a pump lifting control command when the first preset condition is met, and performing a pump lifting well flushing operation for a reinjection channel by utilizing a gap according to the pump lifting control command. According to the method and device for sandstone pore type terrestrial heat reinjection, a pump pipe and an electric submersible pump do not need to be taken or placed, geothermal resource waste is reduced, and the service life of a cable is not affected.
Description
technical field [0001] The invention relates to the technical field of energy processing, in particular to a sandstone pore type geothermal recharge device. Background technique [0002] Sandstone pore-type heat storage recharge is known as a worldwide problem. In the existing sandstone pore-type heat storage recharge projects in China, due to the low porosity and permeability of the formation, even if the geothermal water is filtered to 3-5um , After a short period of recharge, the recharge well will still be blocked, and the recharge volume will drop sharply. In the geothermal recharge of the prior art, since the pump pipe is used as the recharge channel to transport the geothermal water into the recharge well, once the formation is blocked, the pump pipe can only be lifted up, and the electric submersible pump is lowered into the recharge well. In the irrigation well, carry out the return and wash the well. After the well flushing process is completed, the pump pipe is ...
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IPC IPC(8): E03B3/34
CPCE03B3/34
Inventor 叶宏宇叶洪岩刘敏
Owner BEIJING TALENT NEW ENERGY TECH DEV CO LTD