Wellhead fixing device of earthquake underground fluid observation well

Abstract

The utility model relates to the field of geoscience equipment, and discloses an earthquake underground fluid observation well mouth fixing device which comprises an observation site ground, embedded screws are fixedly connected to the interior of the observation site ground, fixing bottom plates are arranged on the two sides of the top of the observation site ground, fixing holes are formed in the fixing bottom plates, and fixing holes are formed in the fixing bottom plates. The embedded screws are arranged in the fixing holes, the exteriors of the embedded screws are in threaded connection with locking nuts, the tops of the fixing bottom plates are fixedly connected with stand columns, the tops of the stand columns are fixedly connected with fixing top plates, and the tops of the fixing top plates are provided with fixing guide supports; and threaded holes are formed in the fixed top plates. According to the utility model, through the arrangement of the U-shaped clamp, the data transmission line is prevented from slipping, so that the observation stability is improved, and through the cooperation of the plurality of groups of bolts and nuts, the observation is more stable. Therefore, the three components can be conveniently disassembled or combined, and the convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of geoscience equipment, in particular to a wellhead fixing device for a seismic underground fluid observation well. Background Art

[0002] As an important research field in earthquake monitoring and prediction, underground fluid discipline has a history of decades of observation of water level and water temperature in underground fluid observation wells. Water level and water temperature sensors are placed in underground observation wells and need to be kept in fixed layers for a long time for observation. The water level of each observation well is buried at a different depth, and the depth of the water level sensor from the wellhead is also different, ranging from less than 10m to tens of meters. The location of the water temperature sensor is determined according to the drilling data and the water temperature gradient test results. Generally, water temperature observations are carried out in shallow, middle and deep layers. The depth of sensor placement ranges from tens of meters to hundreds of meters, or even thousands of meters. Accurate placement and fixation of sensors are the prerequisites for good observation work.

[0003] During the observation process, some abnormal data are often encountered and need to be verified. The location of the sensor needs to be changed. At this time, the sensor needs to be lifted or lowered and water samples from different layers need to be collected. When carrying out the above work, the disturbance to the observation well should be minimized as much as possible.

[0004] The sensors in existing observation wells are directly suspended on the well wall through data cables. In particular, deep water temperature sensors are prone to slipping under the action of gravity, thereby changing the water temperature observation layer. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a wellhead fixing device for a seismic underground fluid observation well, aiming to improve the problem in the prior art that sensors are directly suspended on the well wall through data cables, especially deep water temperature sensors are prone to slipping under the action of gravity, thereby changing the water temperature observation layer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wellhead fixing device for an earthquake underground fluid observation well, comprising an observation site ground, the interior of the observation site ground is fixedly connected with embedded screws, fixed base plates are arranged on both sides of the top of the observation site ground, the interior of the fixed base plates is provided with fixing holes, the embedded screws are arranged inside the fixing holes, the exteriors of the embedded screws are threadedly connected with locking nuts, the top of the fixed base plates are fixedly connected with columns, the tops of the columns are fixedly connected with fixed top plates, the tops of the fixed top plates are provided with fixed guide supports, the interiors of the fixed top plates are provided with threaded holes, the interiors of the fixed guide supports are provided with threaded holes, the interiors of the threaded holes are threadedly connected with fixing bolts, the exteriors of the fixing bolts are threadedly connected with fixing nuts, the interiors of the fixed guide supports are provided with clamping components, and the clamping components are used to clamp the fixed connecting shaft for normal function.

[0007] Furthermore, the clamping assembly includes mounting holes, which are all opened inside the fixed guide support. The top of the fixed guide support is provided with an adjustment groove, which is communicated with the mounting hole. Adjustment holes are opened inside both sides of the fixed guide support, which are communicated with the adjustment groove.

[0008] Furthermore, a connecting shaft is provided inside the fixed guide support, and the connecting shaft is provided inside the mounting hole.

[0009] Furthermore, the outside of the connecting shaft is fixedly connected with a bearing pulley, and the outside of the bearing pulleys on both sides are provided with data transmission lines.

[0010] Furthermore, U-shaped cards are provided at the bottom of the bearing pulleys on both sides, and data transmission lines are provided inside the U-shaped cards.

[0011] Furthermore, the bottom ends of the data transmission lines are fixedly connected with sensors, and the sensors are arranged inside the observation well.

[0012] Furthermore, the observation well is fixedly connected to the inside of the ground of the observation site.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the connecting shaft is installed inside the mounting hole, and the distance of the adjusting groove is adjusted by adjusting the screw, so that the connecting shaft is fixed inside the mounting hole. The bearing pulleys are installed in the middle position of the connecting shaft. The bearing pulleys are used to guide the data transmission line into the well. The data transmission line is clamped by a U-shaped clamp to prevent the data transmission line and the sensor from slipping, thereby improving the stability of observation.

[0015] 2. In the utility model, the column is installed on the top of the ground of the observation site through a fixed bottom plate, the fixed bottom plate is fixed on the ground of the observation site by embedded screws and locking nuts, the top of the column is installed with a fixed guide support through a fixed top plate, the fixed guide support and the fixed top plate are installed by fixing bolts and fixing nuts, and the components are fixed by bolts, screws, etc., which can conveniently split or combine the three parts, provide convenience for product packaging, transportation and on-site work, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a wellhead fixing device for a seismic underground fluid observation well proposed by the utility model;

[0017] Figure 2 This is a partial structural development diagram of a wellhead fixing device for a seismic underground fluid observation well proposed by the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a wellhead fixing device for a seismic underground fluid observation well proposed by the utility model;

[0019] Figure 4 This is a partial structural cross-sectional view of a wellhead fixing device for a seismic underground fluid observation well proposed by the utility model;

[0020] Figure 5 This is an internal diagram of the observation well structure of a wellhead fixing device for a seismic underground fluid observation well proposed by the utility model.

[0021] Legend:

[0022] 1. Observation site ground; 2. Embedded screws; 3. Locking nuts; 4. Fixed bottom plate; 5. Columns; 6. Fixed top plate; 7. Fixed guide support; 8. Fixed bolts; 9. Fixed nuts; 10. Fixed holes; 11. Threaded holes; 12. Mounting holes; 13. Adjustment slots; 14. Adjustment holes; 15. Connecting shaft; 16. Bearing pulley; 17. Data transmission line; 18. Sensor; 19. Observation well; 20. U-shaped card. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 , Figure 2 and Figure 4 The utility model provides an embodiment: a wellhead fixing device for an underground fluid observation well of an earthquake, comprising an observation site ground 1, the inside of the observation site ground 1 is fixedly connected with embedded screws 2, fixed bottom plates 4 are arranged on both sides of the top of the observation site ground 1, the inside of the fixed bottom plates 4 are provided with fixing holes 10, the embedded screws 2 are arranged inside the fixing holes 10, the outside of the embedded screws 2 are threadedly connected with locking nuts 3, the top of the fixed bottom plates 4 are fixedly connected with columns 5, the top of the columns 5 are fixedly connected with fixed top plates 6, the top of the fixed top plates 6 are provided with fixed guide supports 7, and the inside of the fixed top plates 6 are provided with fixed guide supports 8. A threaded hole 11 is provided inside the fixed guide support 7, and a fixing bolt 8 is threadedly connected inside the threaded hole 11. A fixing nut 9 is threadedly connected outside the fixing bolt 8. A clamping assembly is provided inside the fixed guide support 7, and the clamping assembly is used to clamp the fixed connecting shaft 15 for normal function. The clamping assembly includes a mounting hole 12, and the mounting holes 12 are provided inside the fixed guide support 7. An adjustment groove 13 is provided on the top of the fixed guide support 7, and the adjustment groove 13 is communicated with the mounting hole 12. Adjustment holes 14 are provided inside both sides of the fixed guide support 7, and the adjustment hole 14 is communicated with the adjustment groove 13.

[0025] The embedded screws 2 cooperate with the locking nuts 3 to fix the fixed base plate 4 and the column 5 on the ground 1 of the observation site. The fixing holes 10 are used for the embedded screws 2 to pass through. The fixed top plate 6 on the top of the column 5 is fixedly installed on the fixed guide support 7 by fixing bolts 8 and fixing nuts 9. The threaded holes 11 are used for the fixing bolts 8 to insert the fixed top plate 6 and the fixed guide support 7 together, and then fix them with the fixing nuts 9. The mounting holes 12 are used to install the connecting shaft 15. The adjusting grooves 13 are used to clamp and fix the connecting shaft 15. The adjusting holes 14 are used to adjust the distance of the adjusting grooves 13.

[0026] Reference Figure 1 , Figure 3 and Figure 5 A connecting shaft 15 is provided inside the fixed guide support 7, and the connecting shaft 15 is arranged inside the mounting hole 12. The outside of the connecting shaft 15 is fixedly connected to a bearing pulley 16. Data transmission lines 17 are provided outside the bearing pulleys 16 on both sides. U-shaped cards 20 are provided at the bottom of the bearing pulleys 16 on both sides, and data transmission lines 17 are provided inside the U-shaped cards 20.

[0027] The connecting shaft 15 is used to install the bearing pulley 16, the bearing pulley 16 is used to guide the data transmission line 17 into the well, the data transmission line 17 drives the sensor 18 to observe the water temperature and water level, and the U-shaped clamp 20 is used to clamp the data transmission line 17 to prevent the sensor 18 from slipping.

[0028] Reference Figure 1 and Figure 5The bottom end of the data transmission line 17 is fixedly connected with a sensor 18, and the sensor 18 is arranged inside an observation well 19, and the observation well 19 is fixedly connected to the inside of the ground 1 of the observation site.

[0029] The sensor 18 is used to provide observation data of water level and water temperature, and the observation well 19 is used to store underground fluid.

[0030] Working principle: When using the device, the column 5 is installed on the top of the ground 1 of the observation site through the fixed base plate 4. The fixed base plate 4 is fixed on the ground 1 of the observation site through the embedded screws 2 and the locking nuts 3. The column 5 is installed with a fixed guide support 7 through the fixed top plate 6 on the top. The fixed guide support 7 and the fixed top plate 6 are installed through the fixing bolts 8 and the fixing nuts 9. The components are fixed by bolts, screws, etc., which can conveniently split or combine the three parts of the components, provide convenience for product packaging, transportation and on-site work, thereby improving convenience. After the fixed guide support 7 is installed, the connecting shaft 15 is installed in the inside of the mounting hole 12 and the distance of the adjusting groove 13 is adjusted by the adjusting screw, so that the connecting shaft 15 is fixed in the inside of the mounting hole 12. The bearing pulleys 16 are all installed in the middle position of the connecting shaft 15, which is used to guide the data transmission line 17 into the well. The data transmission line 17 is clamped by the U-shaped card 20 to prevent the data transmission line 17 from slipping, thereby improving the stability of the observation.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wellhead fixing device for seismic underground fluid observation well, comprising an observation site surface (1), characterized in that: The interior of the observation site ground (1) is fixedly connected with embedded screws (2), the top two sides of the observation site ground (1) are provided with fixed bottom plates (4), the interior of the fixed bottom plates (4) is provided with fixed holes (10), the embedded screws (2) are arranged inside the fixed holes (10), the exteriors of the embedded screws (2) are threadedly connected with locking nuts (3), the top of the fixed bottom plates (4) is fixedly connected with columns (5), and the tops of the columns (5) are fixedly connected with fixed top plates (6), A fixed guide support (7) is arranged on the top of the fixed top plate (6), a threaded hole (11) is provided inside the fixed top plate (6), a threaded hole (11) is provided inside the fixed guide support (7), a fixing bolt (8) is threadedly connected inside the threaded hole (11), a fixing nut (9) is threadedly connected outside the fixing bolt (8), and a clamping assembly is provided inside the fixed guide support (7), and the clamping assembly is used to clamp the fixed connecting shaft (15) to function normally.

2. A wellhead fixing device for seismic underground fluid observation well according to claim 1, characterized in that: The clamping assembly comprises a mounting hole (12), wherein the mounting holes (12) are all provided inside the fixed guide support (7), the top of the fixed guide support (7) is provided with an adjustment groove (13), the adjustment groove (13) is communicated with the mounting hole (12), and the inside of both sides of the fixed guide support (7) is provided with an adjustment hole (14), the adjustment hole (14) is communicated with the adjustment groove (13).

3. The wellhead fixing device for seismic underground fluid observation well according to claim 1, characterized in that: A connecting shaft (15) is arranged inside the fixed guide support (7), and the connecting shaft (15) is arranged inside the mounting hole (12).

4. The wellhead fixing device for seismic underground fluid observation well according to claim 1, characterized in that: The outside of the connecting shaft (15) is fixedly connected to a bearing pulley (16), and the outside of the bearing pulleys (16) on both sides are provided with data transmission lines (17).

5. A wellhead fixing device for seismic underground fluid observation well according to claim 4, characterized in that: The bottoms of the bearing pulleys (16) on both sides are provided with U-shaped cards (20), and the interiors of the U-shaped cards (20) are provided with data transmission lines (17).

6. A wellhead fixing device for seismic underground fluid observation well according to claim 4, characterized in that: The bottom end of each of the data transmission lines (17) is fixedly connected to a sensor (18), and the sensor (18) is arranged inside the observation well (19).

7. A wellhead fixing device for seismic underground fluid observation well according to claim 6, characterized in that: The observation well (19) is fixedly connected to the inside of the ground (1) of the observation site.

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