Multifunctional injection well
By designing multi-functional injection wells, integrating well pipes, barriers and other components, the problems of cumbersome construction process and waste of resources in existing injection wells are solved, and efficient and economical soil restoration and monitoring are achieved.
Patent Information
- Application Number
- CN202422052524.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The construction process of existing injection wells and monitoring wells is cumbersome, time-consuming and cost-effective, and after the repair is completed, these wells become waste wells, and consumables cannot be reused, resulting in waste of resources.
A multi-functional injection well is designed, integrating well pipes, barriers, drill bits, barriers, threading pipes, injection pipes, data lines and other components. It is inserted into the ground through hydraulic or vibrating hammers, supporting monitoring and repair operations, and can be reused.
It simplifies the operation process, reduces costs, saves resources, and realizes efficient reuse of injection wells and monitoring wells, suitable for large-scale soil restoration.
Smart Images
Figure CN222999357U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of environmental monitoring and / or remediation, and in particular to a multifunctional injection well. Background Art
[0002] According to the different locations of the remediation project, it can be divided into in-situ remediation and ex-situ remediation. In-situ remediation refers to the on-site treatment and disposal of site pollutants, which can simultaneously repair deeply contaminated soil and groundwater; ex-situ remediation is a technology that digs out the soil and then treats it above ground.
[0003] Ex situ remediation involves excavation and transportation, which poses a risk of secondary pollution. Compared with ex situ remediation, in situ remediation is more economical. It does not require the construction of expensive ground environmental engineering facilities and long-distance transportation of pollutants, and can degrade and reduce the toxicity of pollutants. It is relatively simple and convenient to operate and maintain. Another advantage of in situ remediation is that it can repair deep soil, with little damage to the soil, and is suitable for large-scale soil remediation.
[0004] In-situ remediation mode is increasingly used in the remediation of contaminated sites. Common in-situ remediation technologies include gas phase extraction, multiphase extraction, in-situ chemical oxidation, in-situ thermal desorption, in-situ biological ventilation, etc. In the in-situ remediation process, the injection and extraction of materials in the borehole and the setting of in-situ monitoring wells are basic operations. At present, the construction of commonly used injection wells and / or monitoring wells often adopts the workflow of drilling, expanding, lowering pipes, loading, well completion, and installing pipeline probes. The operation process is cumbersome, the process is time-consuming, and the cost is high. Once the remediation project is completed, these injection wells and / or monitoring wells will become waste wells and need to be backfilled. The consumables used in the well construction process cannot be reused, resulting in a waste of resources. Utility Model Content
[0005] In order to effectively solve the problem of complicated operating procedures in the prior art, while saving costs and making consumables reusable, the present application provides a multifunctional injection well.
[0006] A multifunctional injection well provided in this application adopts the following technical solution:
[0007] A multifunctional injection well, characterized in that it comprises a well pipe and a barrier installed on the well pipe, a drill bit, a barrier sheet, a threading pipe, an injection pipe, and a data line;
[0008] A screening section is provided at the lower part of the well pipe;
[0009] The barrier is fixedly mounted on the radial inner wall of the well pipe and divides the inner space of the well pipe into two independent spaces. The barrier is fixedly mounted above the screen section.
[0010] The drill bit is fixedly installed at the lower end of the well pipe. The drill bit is hollow and has through holes on its side surface;
[0011] The barrier sheet is installed between the drill bit and the well pipe to isolate the drill bit from the well pipe;
[0012] One end of the wire threading pipe passes through the barrier member and the barrier sheet and extends into the drill bit cavity;
[0013] One end of the pumping and injection pipe passes through the barrier member and extends into the screen section. The other end of the pumping and injection pipe is provided with a first pipe head and a second pipe head;
[0014] One end of the data line is electrically connected to a first monitoring probe. The first monitoring probe passes through the wire threading pipe and extends into the drill bit cavity.
[0015] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: The drill bit is configured as a conical shape.
[0016] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A lifting ring is also installed on the well pipe.
[0017] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A sealing cover is covered and installed at the upper end of the well pipe. One end of the wire threading pipe passes through the sealing cover and then through the barrier member. One end of the pumping and injection pipe passes through the sealing cover and then through the barrier member.
[0018] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A temperature and humidity detector is also included. The temperature and humidity detector is electrically connected to the other end of the data line.
[0019] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A pressure gauge is also included. A second monitoring probe of the pressure gauge passes through the wire threading pipe and extends into the drill bit cavity.
[0020] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A multi-functional gas detector is also included. A third monitoring probe of the multi-functional gas detector passes through the wire threading pipe and extends into the drill bit cavity.
[0021] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A soil gas monitoring device and a soil gas extraction pump are also included. The first pipe head is sequentially connected to the soil gas monitoring device and the soil gas extraction pump.
[0022] Furthermore, to better implement the present application, the following structural arrangement is particularly adopted: A chemical agent injection pump is also included. The second pipe head is connected to the chemical agent injection pump.
[0023] The present application includes at least one of the following beneficial technical effects:
[0024] 1. By integrating the barrier, drill bit, barrier sheet, threading pipe, injection and extraction pipe, data cable, and first monitoring probe into the well pipe, the working procedures of drilling, reaming, lowering the pipe, filling with packing, forming the well, and installing the pipeline probe, which are commonly used in the prior art, are avoided. The operation process is greatly simplified. At the same time, when the multifunctional injection well is in use, it can be inserted into the ground to a set depth by hydraulic pressure or a vibratory hammer for monitoring and / or repair operations. After the operation is completed, it can be lifted off the ground by a lifting ring, that is, it can be reused, reducing costs and saving resources;
[0025] 2. The drill bit is set to be conical. The conical drill bit will have less resistance when penetrating the ground. The through hole is opened on the side of the drill bit to reduce the resistance when inserting the multifunctional injection well into the ground. The soil enters the drill bit cavity through the through hole on the side of the drill bit and comes into full contact with the first monitoring probe of the temperature and humidity detector, so that the temperature and humidity detector can monitor the temperature and humidity data of the soil in real time;
[0026] 3. By setting the sieve opening section, the soil gas enters the cavity of the sieve opening section, and the soil gas extraction pump extracts the soil gas through the first pipe head to the soil gas monitoring equipment, and the soil gas monitoring equipment monitors the data of the soil gas;
[0027] 4. By setting the chemical injection pump, according to the relevant data monitored above, the chemical is prepared, and the prepared chemical is injected into the cavity of the sieve opening section through the second pipe head by the chemical injection pump and diffuses into the soil to repair the soil;
[0028] 5. By setting the barrier, when injecting the chemical, the barrier restricts the chemical below the barrier to prevent the chemical from filling the entire well pipe;
[0029] 6. By setting the barrier sheet, the barrier sheet is to prevent the chemical from entering the drill bit cavity and affecting the monitoring data;
[0030] 7. By setting the lifting ring, after the repair of the target soil is completed, the multifunctional injection well can be more conveniently lifted off the ground by the lifting ring for convenient reuse;
[0031] 8. By setting the sealing cover, on the one hand, the sealing cover can circumferentially fix the threading pipe and the injection and extraction pipe, and on the other hand, it can keep the cavity of the well pipe above the barrier clean;
[0032] 9. By setting the pressure gauge and the multifunctional gas detector, various types of data of the soil can be monitored to provide more comprehensive data support for the dispensing of the drug.
[0033] 10. The overall structure is ingeniously designed, easy to operate, and at the same time, the cost is low. Description of the Drawings
[0034] Figure 1 Schematic diagram of the multi-functional injection well in this embodiment;
[0035] Figure 2 Schematic diagram of the multi-functional injection well in this embodiment.
[0036] Explanation of reference numerals: 1, well pipe; 11, sealing cover; 12, lifting ring; 13, barrier member; 14, slotted section; 15, barrier sheet; 16, drill bit; 161, through hole; 2, wire threading pipe; 21, data line; 211, first monitoring probe; 22, temperature and humidity detector; 23, pressure gauge; 231, second monitoring probe; 24, multi-functional gas detector; 241, third monitoring probe; 3, injection and extraction pipe; 31, first pipe head; 32, soil gas monitoring equipment; 33, soil gas extraction pump; 34, second pipe head; 35, chemical injection pump. Detailed implementation manners
[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.
[0038] An embodiment of the present application discloses a multi-functional injection well. Refer to Figure 1 , Figure 2 , the multi-functional injection well includes a well pipe and a barrier member, a drill bit, a barrier sheet, a wire threading pipe, an injection and extraction pipe, a data line, a first monitoring probe, a temperature and humidity detector, a pressure gauge, and a multi-functional gas detector installed on the well pipe.
[0039] The upper end of the well pipe is covered and welded with a sealing cover, lifting rings are welded on the outer sides of the upper part of the well pipe, and a slotted section (perforated pipe, slotted pipe) is arranged at the lower part of the well pipe.
[0040] The barrier member is welded and installed on the radial inner wall of the well pipe and divides the internal space of the well pipe into two independent spaces. The barrier member is fixedly welded and installed above the slotted section.
[0041] The drill bit is conical and is fixedly connected to the lower end of the well pipe by threads. The drill bit is hollow and has a through hole on the side. The through hole is a circular hole; the barrier sheet is installed between the drill bit and the well pipe to isolate the drill bit cavity from the well pipe relatively.
[0042] One end of the conduit passes through the sealing cover, the barrier member, and the barrier sheet in sequence and then extends into the drill bit cavity. One end of the data cable is electrically connected to a first monitoring probe. The first monitoring probe passes through the conduit and extends into the drill bit cavity. The temperature and humidity detector is electrically connected to the other end of the data cable and monitors the temperature and humidity data of the soil through the first monitoring probe. The second monitoring probe of the pressure gauge and the third monitoring probe of the multi-functional gas detector both pass through the conduit and extend into the drill bit cavity. The other end of the conduit extends out of the sealing cover.
[0043] One end of the injection and extraction pipe passes through the sealing cover and the barrier member in sequence and then extends into the sieve opening section. The other end of the injection and extraction pipe extends out of the sealing cover and is provided with a first pipe head and a second pipe head. The first pipe head is sequentially connected to a soil gas monitoring device and a soil gas extraction pump. The second pipe head is connected to a chemical agent injection pump.
[0044] It can be understood that in different monitoring or / and remediation construction environments, monitoring devices may or may not be equipped and electrically connected to the other end of the data cable, and the monitoring probes of other detection devices may or may not be equipped at the same time and pass through the conduit and extend into the drill bit cavity for monitoring. Similarly, the first pipe head and the second pipe head may not be used, or different detection or / and remediation devices may be connected according to the on-site construction conditions, that is, different functional operation modes or mode combinations can be enabled as needed: such as soil gas detection, soil temperature and humidity detection, injection of liquid-phase materials, extraction of groundwater, monitoring of groundwater, etc.
[0045] The implementation method of a multi-functional injection well in an embodiment of the present application is as follows: Refer to Figure 1 - Figure 2 After the multi-functional injection well is installed, insert the multi-functional injection well into the ground to a set depth through hydraulic pressure or a vibratory hammer. Soil enters the drill bit cavity through the through holes on the side of the drill bit. The soil is in full contact with the first monitoring probe of the temperature and humidity detector, the second monitoring probe of the pressure gauge, and the third monitoring probe of the multi-functional gas detector, so that the temperature and humidity and other various data of the soil can be monitored in real time. Soil gas enters the sieve opening section cavity. The soil gas extraction pump extracts the soil gas through the first pipe head to the soil gas monitoring device. The soil gas monitoring device monitors the soil gas. According to the above-mentioned monitored data, the chemical agent is prepared, and the prepared chemical agent is injected into the sieve opening section cavity through the second pipe head by the chemical agent injection pump and diffuses into the soil to repair the soil. Since the soil extraction and the chemical agent injection share the injection and extraction pipe, they cannot be carried out simultaneously and are adjusted according to the construction conditions. After the repair of the target soil is completed, the multi-functional injection well can be lifted off the ground through the lifting ring and can be reused.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A multifunctional injection well, characterized in that: Including well pipe and barrier parts, drill bits, barrier sheets, threading pipes, pumping pipes, and data cables installed on the well pipe; A screening section is provided at the lower part of the well pipe; The barrier is fixedly mounted on the radial inner wall of the well pipe and divides the inner space of the well pipe into two independent spaces. The barrier is fixedly mounted above the screen section. The drill bit is fixedly installed at the lower end of the well pipe, and the drill bit is hollow and has a through hole on the side; The barrier sheet is installed between the drill bit and the well pipe to relatively isolate the drill bit from the well pipe; One end of the threading tube passes through the barrier and the barrier sheet and then extends into the drill bit cavity; One end of the extraction pipe passes through the barrier and then extends into the open screen section, and the other end of the extraction pipe is provided with a first pipe head and a second pipe head; One end of the data line is electrically connected to a first monitoring probe, and the first monitoring probe passes through the threading tube and extends into the drill bit cavity.
2. The multifunctional injection well according to claim 1, characterized in that: The drill bit is configured to be conical.
3. The multifunctional injection well according to claim 1, characterized in that: A lifting ring is also installed on the well pipe.
4. The multifunctional injection well according to claim 1, characterized in that: The upper end of the well pipe is covered with a sealing cover, one end of the threading tube passes through the sealing cover and then through the barrier, and one end of the pumping tube passes through the sealing cover and then through the barrier.
5. The multifunctional injection well according to claim 1, characterized in that: It also includes a temperature and humidity detector, which is electrically connected to the other end of the data line.
6. The multifunctional injection well according to claim 1, characterized in that: It also includes a pressure gauge, wherein a second monitoring probe of the pressure gauge passes through the threading tube and extends into the drill bit cavity.
7. The multifunctional injection well according to claim 1, characterized in that: It also includes a multifunctional gas detector, a third monitoring probe of which passes through the threading tube and extends into the drill bit cavity.
8. The multifunctional injection well according to claim 1, characterized in that: It also includes soil gas monitoring equipment and a soil gas extraction pump, and the first pipe head is connected to the soil gas monitoring equipment and the soil gas extraction pump in sequence.
9. The multifunctional injection well according to claim 1, characterized in that: It also includes a medicine injection pump, and the second tube head is connected to the medicine injection pump.