Exploratory well supporting device

Abstract

The exploratory well supporting device comprises an upper inflatable supporting ring, a middle inflatable supporting ring and a lower inflatable supporting ring which are sequentially arranged from top to bottom, the upper inflatable supporting ring and the middle inflatable supporting ring are in through connection through a plurality of vertical face inflatable supporting columns, and the middle inflatable supporting ring and the lower inflatable supporting ring are in through connection through a plurality of vertical face inflatable supporting columns. Vertical face inflatable protective air curtains are arranged between the vertical face inflatable supporting columns located on the same horizontal plane, the upper portion of the upper inflatable supporting ring is connected with a tension-bearing type air supply pipeline through a plurality of upper inflatable protective air curtains, and the tension-bearing type air supply pipeline is connected with an automatic control device and an integrated life support device. By the adoption of the method, the temporary supporting effect can be achieved when an exploratory well encounters an emergency situation, and safety risks are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of geotechnical engineering exploration and relates to an exploration well supporting device. Background Art

[0002] In recent years, with the continuous standardization of engineering construction processes, the requirements for geotechnical engineering investigation work of projects have become increasingly stringent. In particular, with the continuous updating of relevant national and industry specifications and standards, higher requirements have been put forward for geotechnical investigation work in collapsible loess sites. For example, according to the relevant specifications of the "Construction Standards for Collapsible Loess Areas" (GB 50025-2018), a certain number of exploration wells must be available for the investigation of collapsible loess sites, and the maximum controlled depth of the exploration wells can reach 40m. At present, most of the exploration wells are dug manually underground. In this case, there is a safety hazard of burying people due to the collapse of the exploration wells.

[0003] The existing technologies mainly include: wooden splicing support, cement casing segmented support, steel pipe segmented support, etc. These existing technologies have technical problems such as complex support construction in the exploration well, difficulty in removing after the operation, and bulky original support structure. In particular, the above-mentioned existing support technologies do not have automatic protection systems and survival guarantee systems, and cannot provide basic living space and life guarantee for the operators. Summary of the invention

[0004] The purpose of the present invention is to provide an exploration well support device, which can play a role of temporary support when the exploration well encounters an emergency situation, thereby reducing safety risks.

[0005] The technical solution adopted by the present invention is that the exploration well support device includes an upper inflatable support ring, a middle inflatable support ring and a lower inflatable support ring which are arranged in sequence from top to bottom. The upper inflatable support ring and the middle inflatable support ring, as well as the middle inflatable support ring and the lower inflatable support ring are connected through a plurality of vertical inflatable support columns. Vertical inflatable protective air curtains are arranged between the vertical inflatable support columns located in the same horizontal plane. The upper inflatable support ring is connected to a support-pull type air supply pipeline through a plurality of upper inflatable protective air curtains, and the support-pull type air supply pipeline is respectively connected to an automatic control device and an integrated life support device.

[0006] The present invention is also characterized in that:

[0007] The automatic control device comprises a base, on which a compressed gas supply device is installed, on which a pressure control valve III is installed, and the pressure control valve III is connected with a tension-type gas supply pipeline through a compressed gas output pipeline.

[0008] A pressure gauge III is installed on the pressure control valve III.

[0009] The integrated life support device includes an oxygen storage pressure tank and a liquid food storage pressure tank, wherein an oxygen supply output pipeline is connected to the oxygen storage pressure tank, and a control valve I is provided at the connection between the oxygen supply output pipeline and the oxygen storage pressure tank;

[0010] The liquid food storage pressure tank is connected with a liquid food output pipeline, and a control valve II is arranged at the connection between the liquid food output pipeline and the liquid food storage pressure tank.

[0011] The oxygen supply output pipeline is connected to the oxygen supply pipeline wrapped in the support-pull type air supply pipeline; the liquid food supply output pipeline is connected to the liquid food supply pipeline wrapped in the support-pull type air supply pipeline.

[0012] The oxygen supply pipeline and the liquid food supply pipeline are respectively connected with the sub-oxygen supply pipeline and the sub-liquid food supply pipeline wrapped in the vertical inflatable protective air curtain. The sub-oxygen supply pipeline and the sub-liquid food supply pipeline are respectively connected with the length-adjustable supply pipeline. The supply pipelines are respectively equipped with self-closing oxygen supply ports and self-closing liquid food supply ports. The self-closing oxygen supply port is connected with the sub-oxygen supply pipeline, and the self-closing liquid food supply port is connected with the sub-liquid food supply pipeline.

[0013] The control valve I is provided with a pressure gauge I, and the control valve II is provided with a pressure gauge II.

[0014] The beneficial effects of the present invention are that the wall of the exploration well can be supported by the present invention, the pressure and displacement parameters of the soil of the exploration well wall can be monitored in real time, and the instability of the soil can be effectively warned in advance and the safety problems of buried personnel due to the collapse of the exploration well can be reduced. At the same time, the present invention is equipped with an automatic wall collapse protection system and a survival guarantee system, which can provide basic living space and life guarantee for the trapped personnel in time when a buried personnel incident occurs due to special reasons. The present invention has a simple structure and overcomes the technical problems of complex support construction in the exploration well, difficulty in removal after operation, and bulky original support structure in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the exploration well support device (during support) of the present invention;

[0016] Figure 2 It is a schematic structural diagram of the well exploration support device (when folded) of the present invention;

[0017] Figure 3 It is a schematic diagram of the front structure of the automatic air supply device in the exploration well support device of the present invention;

[0018] Figure 4 It is a structural schematic diagram of an integrated life support device in the exploration well support device of the present invention;

[0019] Figure 5It is a schematic diagram of the front structure of the control handbook in the exploration well support device of the present invention.

[0020] In the figure, 1. tension-type air supply pipeline, 2. oxygen supply pipeline, 3. liquid food supply pipeline, 4. upper inflatable protective air curtain, 5. upper inflatable support ring, 6. vertical inflatable support column, 7. vertical inflatable protective air curtain, 8. middle inflatable support ring, 9. oxygen supply pipeline, 10. liquid food supply pipeline, 11. supply pipeline, 12. self-closing oxygen supply port, 13. self-closing liquid food supply port, 14. lower inflatable support ring, 15. control handbook, 16-1. control line I, 16-2. control Line II, 17-1. Pressure gauge I, 17-2. Pressure gauge II, 18-1. Control valve I, 18-2. Control valve II, 19. Integrated life support device, 20. Oxygen supply output pipeline, 21. Liquid food supply output pipeline, 22. Control line III, 23. Pressure gauge III, 24. Pressure control valve III, 25. Compressed gas supply equipment, 26. Base, 27. Compressed gas output pipeline, 28-1. Oxygen storage pressure tank, 28-2. Liquid food storage pressure tank. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The exploration well support device of the present invention is as follows: Figure 1 As shown, it includes a tension-bearing air supply pipeline 1 arranged in the vertical direction, and the tension-bearing air supply pipeline 1 is respectively connected with a plurality of upper inflatable protective air curtains 4, and each upper inflatable protective air curtain 4 is connected with a horizontally arranged upper inflatable support ring 5 (steel belt), and a middle inflatable support ring 8 and a lower inflatable support ring 14 are arranged in the horizontal direction below the upper inflatable support ring 5 in sequence, and the upper inflatable support ring 5 and the middle inflatable support ring 8, and the middle inflatable support ring 8 and the lower inflatable support ring 14 are connected through a plurality of vertical inflatable support columns 6, and vertical inflatable protective air curtains 7 are also arranged between the upper inflatable support ring 5 and the middle inflatable support ring 8, and between the middle inflatable support ring 8 and the lower inflatable support ring 14, and in the same horizontal plane, the vertical inflatable protective air curtains 7 are arranged between the vertical inflatable support columns 6.

[0023] like Figure 2As shown, the oxygen supply pipe 2 and the liquid food supply pipe 3 are respectively connected with the sub-oxygen supply pipe 9 and the sub-liquid food supply pipe 10 wrapped in the vertical inflatable protective air curtain 7 (that is, the oxygen supply pipe 2 is connected with the sub-oxygen supply pipe 9, and the liquid food supply pipe 3 is connected with the sub-liquid food supply pipe 10), and the sub-oxygen supply pipe 9 and the sub-liquid food supply pipe 10 are respectively connected with the length-adjustable supply pipe 11 (the supply pipe is an oxygen (liquid food) supply pipe, and the structure is a corrugated pipe form), and the supply pipe 11 is respectively installed with a self-closing oxygen supply port 12 and a self-closing liquid food supply port 13, the self-closing oxygen supply port 12 is connected with the sub-oxygen supply pipe 9, and the self-closing liquid food supply port 13 is connected with the sub-liquid food supply pipe 10.

[0024] Also includes automatic air supply devices, such as Figure 3 As shown, the automatic air supply device includes a base 26, on which a compressed gas providing device 25 is installed, a pressure control valve III24 is installed at one end of the compressed gas providing device 25, a pressure gauge III23 is also installed on the pressure control valve III24, and a compressed gas output pipeline 27 is installed at the other end of the pressure control valve III24, and the compressed gas output pipeline 27 is connected to the tension type air supply pipeline 1.

[0025] like Figure 4 As shown, it also includes an integrated life support device 19, which includes an oxygen storage pressure tank 28-1 and a liquid food storage pressure tank 28-2. The oxygen storage pressure tank 28-1 is connected to an oxygen supply output pipeline 20. A control valve I18-1 is provided at the connection between the oxygen supply output pipeline 20 and the oxygen storage pressure tank 28-1. A pressure gauge I17-1 is provided on the control valve I18-1.

[0026] The liquid food storage pressure tank 28-2 is connected to a liquid food output pipe 21, a control valve II18-2 is provided at the connection between the liquid food output pipe 21 and the liquid food storage pressure tank 28-2, and a pressure gauge II17-2 is provided on the control valve II18-2;

[0027] The control valve I18-1 is connected to the control handbook 15 through the control line I16-1, the control valve II18-2 is connected to the control line II16-2, and the pressure control valve III24 is connected to the control handbook 15 through the control line III22. The control handbook 15 adopts the existing structure and mainly controls the opening and closing of the valves. Figure 5 shown.

[0028] The oxygen supply output pipe 20 is connected to the oxygen supply pipe 2 wrapped in the support-pull type air supply pipe 1; the liquid food supply output pipe 21 is connected to the liquid food supply pipe 3 wrapped in the support-pull type air supply pipe 1.

[0029] The working principle of each component in the exploration well support device of the present invention is: when it is necessary to support the exploration well operation of the rock formation, the exploration well support device of the present invention is placed in the position section in the exploration well that needs support or the position section where personnel operations need support, and the compressed gas providing device 25 is started by the control handbook 15 (equivalent to the controller), and the compressed gas is delivered to the support-type air supply pipeline 1 through the compressed gas output pipeline 27 through the pressure control valve III24 under the monitoring of the pressure gauge III23, and the compressed gas is transmitted from the support-type air supply pipeline 1 to the upper inflatable protective air curtain 4, the upper inflatable support ring 5, the vertical inflatable support column 6, the vertical inflatable protective air curtain 7, the middle inflatable support ring 8, and the lower inflatable support ring 14, so that they are inflated and expanded, wherein the expansion rate of the upper inflatable support ring 5, the middle inflatable support ring 8, and the lower inflatable support ring 14 is greater than that of the vertical inflatable support column 6 and the vertical inflatable protective air curtain 7, so that the entire exploration well support device is in a supporting state (see Figure 1 ); the compressed gas pressure is controlled by the pressure control valve III24 so that the upper inflatable support ring 5, the middle inflatable support ring 8, and the lower inflatable support ring 14 are partially embedded in the exploration well soil, and the outward expansion force generated by the vertical inflatable support column 6 and the vertical inflatable protective air curtain 7 is greater than or equal to the soil pressure of the exploration well support section. At this time, the exploration well support device can play a supporting role and ensure the safety of the workers therein. At the same time, the stability of the well wall can be monitored through the pressure changes of the compressed gas in the system.

[0030] When special reasons cause the wellbore wall to loosen and collapse, the upper inflatable support ring 5, the middle inflatable support ring 8, and the lower inflatable support ring 14 are all provided with pressure sensors. Through the measurement of the pressure sensors prefabricated in the upper inflatable support ring 5, the middle inflatable support ring 8, and the lower inflatable support ring 14, the protection mode is automatically started through the control handbook 15, and the control handbook 28 controls the pressure control valve III24 to increase the pressure of the supplied compressed gas, so that the outward expansion pressure in the exploration well support device of the present invention is always greater than the collapsed soil pressure, thereby ensuring that there is a certain living space at the working position where the personnel are located.

[0031] While ensuring that there is a certain living space at the working position of the personnel, the protection survival mode can be automatically started by the control handbook 15, and the control handbook 15 controls the integrated life support device 19 to start working.

[0032] The oxygen storage pressure tank 28-1 and the liquid food storage pressure tank 28-2 are opened respectively through the control valve I18-1 and the control valve II18-2, and the oxygen in the oxygen storage pressure tank 28-1 is transported to the sub-oxygen supply pipe 9 through the oxygen supply output pipe 20 and the oxygen supply pipe 2; the liquid food in the liquid food storage pressure tank 28-2 is transported to the sub-liquid food supply pipe 10 through the liquid food supply pipe 3, and the oxygen in the sub-oxygen supply pipe 9 and the liquid food in the sub-liquid food supply pipe 10 are finally transported to the self-closing oxygen supply port 12 and the self-closing liquid food supply port 13 through the length-adjustable (oxygen supply / liquid food supply) supply pipe 11. The controlled personnel can obtain the necessary survival substances for life through the self-closed oxygen supply port 12 and the self-closed liquid food supply port 13, effectively extending the survival time of the trapped personnel and gaining precious rescue time for external rescue personnel.

[0033] When the exploration well support work is finished, the end mode is started by controlling the handbook 15, and the automatic air supply device is controlled to release pressure to a normal pressure state, so that the upper inflatable support ring 5, the middle inflatable support ring 8, the lower inflatable support ring 14, the vertical inflatable support column 6, and the vertical inflatable protective air curtain 7 are separated from the exploration well wall after the pressure is released, and the supporting and tensioning air supply pipeline 1 is grasped to pull the exploration well support device of the present invention out of the exploration well as a whole. When on the ground, since the upper inflatable support ring 5, the middle inflatable support ring 8, the lower inflatable support ring 14, the vertical inflatable support column 6, and the vertical inflatable protective air curtain 7 are in a normal pressure state, the above-mentioned device can be folded to reduce storage space (folded state as shown in FIG. 1 ). Figure 2 shown).

[0034] The present invention aims at the safety risk of burying people due to the collapse of the soil layer of the exploration well when digging an exploration well in a loess site. The combined use of the integrated life support device, automatic air supply device, control handbook and other devices of the present invention can effectively play a temporary support operation, reduce safety risks, and provide a well wall collapse automatic protection system and survival support system for the buried people when a buried person event occurs due to special reasons, which can provide basic living space and life guarantee for the trapped people in time. The invention device has the characteristics of being simple, light, foldable, flexible, easy to operate and low cost.

[0035] Example 1

[0036] The exploration well support device includes an upper inflatable support ring 5, a middle inflatable support ring 8 and a lower inflatable support ring 14 which are arranged in sequence from top to bottom. The upper inflatable support ring 5 and the middle inflatable support ring 8, as well as the middle inflatable support ring 8 and the lower inflatable support ring 14 are connected through a plurality of vertical inflatable support columns 6. Vertical inflatable protective air curtains 7 are arranged between the vertical inflatable support columns 6 located in the same horizontal plane. The upper inflatable support ring 5 is connected to a tension-type air supply pipeline 1 through a plurality of upper inflatable protective air curtains 4. The tension-type air supply pipeline 1 is respectively connected to an automatic control device and an integrated life support device 19.

[0037] Example 2

[0038] On the basis of Embodiment 1, the facade inflatable protective air curtain 7 and the facade inflatable support column 6 are connected through.

[0039] Example 3

[0040] Based on Example 1, the automatic control device includes a base 26, on which a compressed gas providing device 25 is installed, on which a pressure control valve III24 is installed, and the pressure control valve III24 is connected to the tension-type air supply pipeline 1 through a compressed gas output pipeline 27.

[0041] Example 4

[0042] On the basis of Example 3, the integrated life support device 19 includes an oxygen storage pressure tank 28-1 and a liquid food storage pressure tank 28-2, the oxygen storage pressure tank 28-1 is connected to an oxygen supply output pipeline 20, and a control valve 118-1 is provided at the connection between the oxygen supply output pipeline 20 and the oxygen storage pressure tank 28-1;

[0043] The liquid food storage pressure tank 28-2 is connected to a liquid food output pipeline 21, and a control valve II18-2 is provided at the connection between the liquid food output pipeline 21 and the liquid food storage pressure tank 28-2.

Claims

1. A well support device, characterized in that: The invention comprises an upper inflatable support ring (5), a middle inflatable support ring (8) and a lower inflatable support ring (14) which are arranged in sequence from top to bottom. The upper inflatable support ring (5) and the middle inflatable support ring (8), as well as the middle inflatable support ring (8) and the lower inflatable support ring (14) are connected through a plurality of vertical inflatable support columns (6). A vertical inflatable protective air curtain (7) is arranged between the vertical inflatable support columns (6) located on the same horizontal plane. A support-pull type air supply pipeline (1) is connected above the upper inflatable support ring (5) through a plurality of upper inflatable protective air curtains (4). The support-pull type air supply pipeline (1) is respectively connected to an automatic control device and an integrated life support device (19).

2. The exploration well support device according to claim 1, characterized in that: The facade inflatable protective air curtain (7) is connected to the facade inflatable support column (6).

3. The exploration well support device according to claim 1, characterized in that: The automatic control device comprises a base (26), a compressed gas supply device (25) is installed on the base (26), a pressure control valve III (24) is installed on the compressed gas supply device (25), and the pressure control valve III (24) is connected to the tension-type air supply pipeline (1) through a compressed gas output pipeline (27).

4. The exploration well support device according to claim 3, characterized in that: The pressure control valve III (24) is provided with a pressure gauge III (23).

5. The exploration well support device according to claim 3, characterized in that: The integrated life support device (19) comprises an oxygen storage pressure tank (28-1) and a liquid food storage pressure tank (28-2), wherein the oxygen storage pressure tank (28-1) is connected to an oxygen supply output pipeline (20), and a control valve I (18-1) is provided at the connection between the oxygen supply output pipeline (20) and the oxygen storage pressure tank (28-1); A liquid food output pipeline (21) is connected to the liquid food storage pressure tank (28-2), and a control valve II (18-2) is provided at the connection between the liquid food output pipeline (21) and the liquid food storage pressure tank (28-2).

6. The exploration well support device according to claim 5, characterized in that: The oxygen supply output pipe (20) is connected to the oxygen supply pipe (2) wrapped in the support-pull type air supply pipe (1); and the liquid food supply output pipe (21) is connected to the liquid food supply pipe (3) wrapped in the support-pull type air supply pipe (1).

7. The exploration well support device according to claim 6, characterized in that: The oxygen supply pipe (2) and the liquid food supply pipe (3) are respectively connected to the sub-oxygen supply pipe (9) and the sub-liquid food supply pipe (10) wrapped in the vertical inflatable protective air curtain (7); the sub-oxygen supply pipe (9) and the sub-liquid food supply pipe (10) are respectively connected to the length-adjustable supply pipe (11); the supply pipe (11) is respectively provided with a self-closing oxygen supply port (12) and a self-closing liquid food supply port (13); the self-closing oxygen supply port (12) is connected to the sub-oxygen supply pipe (9); and the self-closing liquid food supply port (13) is connected to the sub-liquid food supply pipe (10).

8. The exploration well support device according to claim 5, characterized in that: The control valve I (18-1) is provided with a pressure gauge I (17-1), and the control valve II (18-2) is provided with a pressure gauge II (17-2).

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