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Geothermal well excavation protection device

A protection device, geothermal well technology, applied in drilling equipment, wellbore/well components, drill pipe, etc., can solve problems such as poor guiding device effect, deformation of geothermal pipeline, unfavorable geothermal energy transmission, etc.

Active Publication Date: 2019-09-20
广东省地质技术工程咨询公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] After the geothermal well is excavated, the geothermal pipeline needs to be sent into the geothermal well for the transportation of geothermal energy. When the geothermal pipeline enters the geothermal well, the traditional geothermal well wellhead position for the geothermal pipeline guide device is not effective, and the geothermal pipeline enters the geothermal energy. During the well process, it is easy to touch hard objects such as rock bumps inside the geothermal well, resulting in deformation, scratches and small gaps in the geothermal pipeline, which is not conducive to the transmission of geothermal energy, and makes the geothermal pipeline prone to leakage during the process of conveying geothermal energy

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Please refer to figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 ,in, figure 1 A structural schematic diagram of a preferred embodiment of the geothermal well excavation protection device provided by the present invention; figure 2 for figure 1 The schematic diagram of the connection structure of the fixed cylinder, guide structure and support structure shown; image 3 for figure 2 The schematic diagram of the connection structure between the fixed cylinder and the guide structure shown; Figure 4 for figure 1 The schematic diagram of the connection structure of the protective structure and the supporting structure shown; Figure 5 for figure 1 The schematic diagram of the connection structure of the fixed cylinder and the fixed structure shown. The geothermal well excavation protection device includes: a guide head 4, a p...

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Abstract

The invention provides a geothermal well excavation protection device. The geothermal well excavation protection device comprises a guiding head, a protection structure and a guiding structure; the protection structure comprises a fixed cylinder, the inside of the fixed cylinder is of a hollow structure, the fixed cylinder is fixed to the guiding head; the guiding structure is connected to the fixed cylinder, the guiding structure comprises fixing block, sliding slots, springs, fixing plates and rollers, the sliding slots are formed in the fixed cylinder, the sliding slots communicate with the inside of the fixed cylinder, the fixing blocks are slidably connected to the fixed cylinder, the fixing blocks are located in the sliding slots, the fixing plates are fixed to the fixing blocks, and the springs are fixed between the fixing plates and the inner side wall of the fixed cylinder; and the fixing blocks penetrate through the insides of the springs, the rollers are rotatably connected to the fixing blocks, and the rollers are located in the fixed cylinder. The geothermal well excavation protection device has the advantages of facilitating protection of a geothermal pipeline and facilitating geothermal energy transportation.

Description

technical field [0001] The invention relates to the technical field of geothermal wells, in particular to a geothermal well excavation protection device. Background technique [0002] Geothermal wells refer to methods and devices for generating electricity using geothermal energy or hot spring water with a water temperature greater than 30°C. Geothermal energy is divided into three categories: high temperature, medium temperature and low temperature. If it is higher than 150°C and exists in the form of steam, it belongs to high-temperature geothermal; if it exists in the form of a mixture of water and steam between 90°C and 150°C, it belongs to medium-temperature geothermal; if it is higher than 25°C and lower than 90°C, it belongs to warm water Hot water, hot water, etc. exist in the form of low-temperature geothermal heat. Geothermal heat should be used in "cascades", so that geothermal resources can be "utilized". The first step is used for heating; the second step is sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/04E21B17/10
CPCE21B17/10E21B33/04
Inventor 李进
Owner 广东省地质技术工程咨询公司
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