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Geothermal resource same-well injection-extraction recycling method and device

A technology of injection-production and geothermal resources in the same well, applied in the field of injection-production and recycling of geothermal resources in the same well, can solve the problems of high input cost and large area, save time and cost, simplify procedures, save space and investment cost effect

Active Publication Date: 2019-07-12
西安宏冠能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of process technology has high investment cost, wells must appear in pairs (1 production and 1 injection), and the occupied area is also large

Method used

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  • Geothermal resource same-well injection-extraction recycling method and device
  • Geothermal resource same-well injection-extraction recycling method and device
  • Geothermal resource same-well injection-extraction recycling method and device

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Embodiment Construction

[0029] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] Such as Figure 1 to Figure 3 As shown, the present invention provides a geothermal resource recycling device for injection and production in the same well, which can produce geothermal water by injection and production in the same well, which saves the production cost and land cost of drilling wells, and utilizes it through the ground heat exchange device. Its thermal energy, and then al...

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Abstract

The embodiment of the invention discloses a geothermal resource same-well injection-extraction recycling device. The geothermal resource same-well injection-extraction recycling device comprises a base fixed to the ground and a production pipe column mounted through the base, the production pipe column is internally provided with a liner composite heat-insulation pipe, and the top and the bottom of the production pipe column are connected with the liner composite heat-insulation pipe through a tubing anchor and a packer correspondingly, wherein the tubing anchor is of a hollow structure, an extracted water backflow channel is formed between the production pipe column and the liner composite heat-insulation pipe, the edge of the packer is of a closed structure, and a geothermal water extraction channel is formed in the liner composite heat-insulation pipe. The invention further comprises an injection-extraction recycling method, extraction of high-temperature formation water and reinjection of low-temperature formation water are achieved through a same-well injection-extraction mode, the procedures of failure processing are simplified, the site and the input cost are saved, and theefficiency is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of geothermal injection and production, and in particular to a method and device for the same well injection and production recycling of geothermal resources. Background technique [0002] Geothermal resources refer to the renewable heat energy stored in the interior of the earth. It is not only a very valuable comprehensive mineral resource, but also a clean energy resource. It has many functions and is widely used for power generation and heating. The practice shows that the comprehensive development and utilization of geothermal resources has significant social, economic and environmental benefits, and has shown an increasingly important role in the development of the national economy. [0003] At present, the exploitation of geothermal resources mainly adopts a single well to extract high-temperature formation water, use it through a ground heat exchanger, and use another well t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/24E21B17/00E21B43/116E21B43/267E21B33/12E21B43/08F04C2/16F24T10/20
CPCE21B17/00E21B33/12E21B43/08E21B43/116E21B43/24E21B43/267F04C2/16F24T10/20Y02E10/10
Inventor 赵秀侠
Owner 西安宏冠能源科技有限公司
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