Environment self-adaptive adjustment pipeline plugging process evaluation device and method

Abstract

The invention discloses an environment self-adaptive adjustment pipeline plugging process evaluation device and method, a plugging material is plugged in a second cavity through a closed space established by an evaluation pipe body and two sealing structures, an external gas source is connected to a gas introduction structure, and an external liquid source is connected to a liquid introduction structure. A gas leading-in structure, a liquid leading-in structure, a liquid leading-out structure, a first pressure gauge and a second pressure gauge are adopted to adjust the pressure and the liquid volume in the evaluation pipe body; the inclination angle of the evaluation pipe body is adjusted by controlling the lifting device, the test temperature is adjusted through the temperature control device, and finally performance evaluation of the plugging process under different working conditions is achieved. The device is simple in structure, and performance parameters such as limit plugging pressure, plugging time and the like of various plugging materials under different pipe diameters, materials, media, pressures, temperatures and gradients can be obtained. The problem that various performances of a pipeline plugging process have no clear index parameters is solved, and a plugging technical scheme under different working conditions is provided for field plugging operation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of oil and gas pipeline maintenance, and relates to an environment self-adaptive regulation pipeline plugging process evaluation device and method. BACKGROUND

[0002] Oilfield pipelines are responsible for transporting oil, gas, water and various mixtures, and have the characteristics of flammable, explosive and easily diffused hazardous chemicals. Changqing Oilfield has tens of thousands of kilometers of existing oil and gas pipelines, and a large number of oil and gas pipelines are repaired, expanded, repaired and connected every year. Pipeline plugging has become an important part of oil and gas field safety production by isolating the operating pipeline section and the oil and gas pipeline space to ensure the relative safety of pipeline operation.

[0003] Pipeline plugging is a local plugging technology in the pipeline when the fire point is far away from the valve to effectively reduce oil and gas leakage and ensure the safety of the fire environment. The common non-hole pipeline plugging methods include butter wall plugging, air bag plugging, cellulose water-soluble paper plugging, water-soluble resin plugging and freezing plugging. However, there are no clear index parameters for the performance of these pipeline plugging processes, which cannot guide the on-site plugging operation. Due to the lack of clear index parameters for the performance of pipeline plugging processes, technicians cannot make correct choices for plugging materials and methods when facing different working conditions on site, and there is no perfect evaluation system for the failure evolution process of plugging materials under different working conditions. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provide an environment self-adaptive regulation pipeline plugging process evaluation device and method.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The environment self-adaptive regulation pipeline plugging process evaluation device provided by the present application comprises an evaluation pipe body; the evaluation pipe body comprises a first cavity, a second cavity and a third cavity connected in sequence; a first sealing structure is arranged at the end of the first cavity, a first pressure gauge and a gas introduction structure are arranged on the first cavity, and a liquid introduction structure is arranged on the first sealing structure; a second sealing structure is arranged at the end of the third cavity, a second pressure gauge is arranged on the third cavity, and a liquid outlet structure is arranged on the second sealing structure; a pipeline lifting device is installed below the evaluation pipe body.

[0007] Preferably, the first sealing structure comprises a first sealing cover and a first sealing gasket; a first flange plate is installed at the end of the first cavity, and the first sealing gasket is located between the first sealing cover and the first flange plate.

[0008] Preferably, the second sealing structure includes a second sealing cover and a second sealing gasket; a second flange is installed at the end of the third cavity, and the second sealing gasket is located between the second sealing cover and the second flange.

[0009] Preferably, the pipe lifting device includes a base and a telescopic lifting rod;

[0010] One end of the telescopic lifting rod is mounted on the base, and buckles are installed on both the first and third cavities. The other end of the telescopic lifting rod is connected to the buckles. There are graduations on the two sections of the telescopic lifting rod.

[0011] Preferably, a scale and an observation window are provided on the second cavity, and the first pressure gauge, the second pressure gauge, and the gas inlet structure are located on the extension line of the scale.

[0012] Preferably, a temperature control box is provided on the outside of the evaluation tube.

[0013] Preferably, a heat exchanger is provided on the outside of the temperature control box.

[0014] Preferably, a temperature controller is provided inside the temperature control box.

[0015] Preferably, valves are provided on the gas inlet structure, the liquid inlet structure, and the liquid outlet structure.

[0016] This invention proposes an environmentally adaptive pipeline plugging process evaluation method, comprising:

[0017] The sealing material is sealed in the second cavity, and an external gas source is connected to the gas inlet structure, while an external liquid source is connected to the liquid inlet structure.

[0018] The pressure and liquid volume in the evaluation tube are adjusted using a gas inlet structure, a liquid inlet structure, a liquid outlet structure, a first pressure gauge, and a second pressure gauge.

[0019] By controlling the lifting device to adjust the tilt angle of the evaluation tube and by adjusting the temperature control device to adjust the test temperature, the performance evaluation of the sealing process under different working conditions can be achieved.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention proposes an environmentally adaptive pipeline plugging process evaluation device. It evaluates the pipe body and establishes a sealed space with two sealing structures. The plugging material is then sealed in the second cavity. An external gas source is connected to a gas inlet structure, and an external liquid source is connected to a liquid inlet structure. The pressure and liquid volume within the evaluation pipe body are adjusted using the gas inlet structure, liquid inlet structure, liquid outlet structure, a first pressure gauge, and a second pressure gauge. The tilt angle of the evaluation pipe body is adjusted by controlling a lifting device, ultimately achieving performance evaluation of the plugging process under different operating conditions. This device has a simple structure and can obtain performance parameters such as ultimate plugging pressure, plugging time, dissolution state, and sealing aging under different pipe diameters, materials, media, pressures, temperatures, and tilt angles for various plugging materials. It solves the problem of lacking clear performance indicators for various pipeline plugging processes and provides an optimal solution for plugging technology under different operating conditions in field operations.

[0022] Furthermore, a temperature control chamber is used to control the test temperature, thereby simulating different working conditions in actual production. By adaptively adjusting various sealing conditions, the performance of the pipeline sealing process can be evaluated. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Fig. 1 This is a front view of the environmentally adaptive pipeline plugging process evaluation device of the present invention.

[0025] Fig. 2 This is a top view of the environmentally adaptive pipeline plugging process evaluation device of the present invention.

[0026] Wherein: 1-First sealing cap; 2-Inlet; 3-First sealing gasket; 4-First cavity; 5-Air inlet of front cavity; 6-First pressure gauge; 7-Observation window; 8-Second cavity; 9-Third cavity; 10-Second pressure gauge; 11-Second sealing gasket; 12-Second sealing cap; 13-Rear drain; 14-Telescopic lifting rod; 15-Base; 16-Snap fastener; 17-Evaluation tube; 18-Temperature controller; 19-Temperature control box; 20-Heat exchanger; 21-Scale. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0033] The present invention will now be described in further detail with reference to the accompanying drawings:

[0034] This invention proposes an environmentally adaptive pipeline plugging process evaluation device, such as... Figs. 1-2 As shown, the evaluation tube 17 includes a first cavity 4, a second cavity 8, and a third cavity 9 connected in sequence. A first sealing structure is provided at the end of the first cavity 4, and a first pressure gauge 6 and a gas inlet structure are provided on the first cavity 4. A liquid inlet structure is provided on the first sealing structure. A second sealing structure is provided at the end of the third cavity 9, and a second pressure gauge 10 is provided on the third cavity 9. A liquid outlet structure is provided on the second sealing structure. A pipe lifting device is installed below the evaluation tube 17. Valves are provided on the gas inlet structure, the liquid inlet structure, and the liquid outlet structure. A temperature control box 19 is provided outside the evaluation tube 17, a heat exchanger 20 is provided outside the temperature control box 19, and a temperature controller 18 is provided inside the temperature control box 19.

[0035] The first sealing structure includes a first sealing cover 1 and a first sealing gasket 3; a first flange is installed at the end of the first cavity 4, and the first sealing gasket 3 is located between the first sealing cover 1 and the first flange. The second sealing structure includes a second sealing cover 12 and a second sealing gasket 11; a second flange is installed at the end of the third cavity 9, and the second sealing gasket 11 is located between the second sealing cover 12 and the second flange.

[0036] The pipeline lifting device includes a base 15 and a telescopic lifting rod 14; one end of the telescopic lifting rod 14 is installed on the base 15, and a buckle 16 is installed on both the first cavity 4 and the third cavity 9; the other end of the telescopic lifting rod 14 is connected to the buckle 16; there are graduations on the two sections of the telescopic lifting rod 14.

[0037] A scale 21 and an observation window 7 are provided on the second cavity 8. The first pressure gauge 6, the second pressure gauge 10 and the gas inlet structure are located on the extension line of the scale line 21.

[0038] Specifically, the evaluation pipe body 17 has a total length of 1.8 meters. The observation port of the observation window 7 is centered at the 0.9-meter pipe length, with an area ranging from one-sixth of the pipe diameter in width and 1 meter in length. Simultaneously, 0.5-meter graduation lines extend symmetrically from the center of the observation port to both sides parallel to the pipe. The observation port is made of transparent PVC material. The evaluation pipe body 17 is made of materials commonly used in oil and gas pipelines, mainly 20# steel, L245N, L290N, and L360N. The pipe diameter is mainly Φ60, Φ89, Φ114, Φ168, Φ219, and Φ273, and it can withstand pressures greater than 1MPa. Flanges of the same size as the pipe are welded to both sides of the evaluation pipe body 17.

[0039] The dimensions of the first sealing gasket 3 and the second sealing gasket 11 are both larger than the inner diameter of the evaluation pipe body 17 and smaller than the outer diameter of the flange. The gasket material is mainly rubber or plastic, which has good elasticity and plasticity and can adapt to different interface shapes and sizes. In addition, the surface of the sealing ring is coated with waterproof material to enhance its waterproof performance.

[0040] The first sealing cap 1 and the second sealing cap 12 are made of 20# steel and resin. Their dimensions are the same as the flanges manufactured on both sides of the evaluation tube body 17. They can withstand pressure greater than 1MPa. The sealing caps are connected to the evaluation tube body by bolts.

[0041] The pipeline lifting device consists of three parts: base 15, buckle 16, and telescopic lifting rod 14. The base is the fixing device of this test device. The evaluation pipe body 17 is connected to the base 15 by the buckles 16 on the left and right sides of the observation port. The telescopic lifting rod 14 is installed between the buckles 16 and the base 15. The two sections of the telescopic lifting rod 14 have scales, which can control the lifting height of the lifting rod.

[0042] The temperature control chamber consists of a temperature controller and a radiator, and is mainly used to simulate ambient temperature.

[0043] The first, second, and third chambers are divided by the observation port area. The pipe area to the left of the observation port is the first chamber, the observation port area is the second chamber, and the right side is the third chamber. The pressure gauge and air inlet are located on the extension line of the scale. The pressure gauge is a precision pressure gauge with a measurement accuracy of 0.0001MPa and a range of 1MPa.

[0044] The gas inlet structure is a front chamber air inlet 5, the liquid inlet structure is a front liquid inlet 2, and the liquid outlet structure is a rear liquid outlet 13. The front chamber air inlet and the first pressure gauge 6 are connected to the inner cavity of the evaluation tube 17, and the second pressure gauge 10 is also connected to the inner cavity of the evaluation tube 17. A valve connects the front chamber air inlet, the first pressure gauge 6, and the third pressure gauge 10 to the evaluation tube 17 to control the communication between the inside and outside of the evaluation tube 17. The front liquid inlet 2 is connected to the first sealing cap 1 and passes through it. A valve precedes the front liquid inlet 2 to the first sealing cap 1 to control the communication between the two sides of the first sealing cap 1. The rear liquid outlet 13 is connected to the second sealing cap 12 and passes through it. A valve precedes the rear liquid outlet 13 to the second sealing cap 12 to control the communication between the two sides of the second sealing cap 12. The valve can withstand pressures greater than 1 MPa, and the valve opening is fine-tunable to achieve fine-tuning of the pressure in the evaluation tube 17 cavity.

[0045] The present invention proposes an environmentally adaptive pipeline plugging process evaluation method, comprising the following steps:

[0046] The sealing material is sealed in the second cavity 8, and an external gas source is connected to the gas inlet structure, and an external liquid source is connected to the liquid inlet structure.

[0047] The pressure and liquid volume in the evaluation tube 17 are adjusted by using a gas inlet structure, a liquid inlet structure, a liquid outlet structure, a first pressure gauge 6, and a second pressure gauge 10.

[0048] By controlling the lifting device to adjust the tilt angle of the evaluation tube 17 and by adjusting the temperature control device to adjust the test temperature, the performance evaluation of the sealing process under different working conditions can be achieved.

[0049] The following analysis will be conducted using specific examples:

[0050] Example 1:

[0051] With a pipe diameter of Φ114, a temperature of 25℃, and water as the internal medium, the evaluation test was conducted on the seal failure time of a horizontally placed pipe (Pipe 17) with cellulose water-soluble paper as the sealing material.

[0052] Test preparation: Seal the prepared cellulose water-soluble paper material at the center of the scale of the second cavity 8 of the evaluation tube 17. The first sealing cap 1 is connected to the evaluation tube 17 by bolts, and sealed in the middle by the first sealing gasket 3. The second sealing cap 12 is connected to the evaluation tube 17 by bolts, and sealed in the middle by the second sealing gasket 11. Close the inlet 2, the air inlet 5 of the front cavity, and the outlet 13 valves. Open the first pressure gauge 6 and the second pressure gauge 10 valves. The pressure readings of the first pressure gauge 6 and the second pressure gauge 10 are 0 MPa. The inlet 2 is connected to 10L of pure water, and the air inlet of the front cavity is connected to 1MPa nitrogen.

[0053] Test steps: Open the inlet valve 2, adjust the liquid volume in the first chamber 4 to 1 / 2, and then slowly open the air inlet valve 5 of the inlet. Observe the first pressure gauge 6, adjust the pressure in the first chamber 4 to 0.0001MPa, and start timing. When the pressure reading on the second pressure gauge 10 suddenly increases and the pressure reading on the first pressure gauge 6 suddenly decreases, combine the displacement and expansion of the sealing material at the observation window 7 above the second chamber 8 (with scale 21 as a reference) to determine the sealing failure of the cellulose water-soluble paper sealing material. The time taken from the start of timing to the sealing failure is the time taken for the pipe diameter Φ114 and the standard temperature 25 degrees Celsius. Evaluate the sealing failure time of the cellulose water-soluble paper under the conditions of horizontal placement of the pipe and pressure and liquid inside the pipe.

[0054] Example 2:

[0055] With a pipe diameter of Φ89, no medium inside the pipe, and an ambient temperature of 40℃, the evaluation assesses the ultimate sealing pressure test of a horizontally placed pipe (17mm diameter) with a grease-coated wall as the sealing material.

[0056] Test preparation:

[0057] The prepared grease wall is sealed at the center of the scale of the second cavity 8 of the evaluation tube 17. The first sealing cap 1 is connected to the evaluation tube 17 by bolts, and sealed in the middle by the first sealing gasket 3. The second sealing cap 12 is connected to the evaluation tube 17 by bolts, and sealed in the middle by the second sealing gasket 11. The temperature controller 18 and heat exchanger 20 are turned on, and the temperature in the temperature control box 19 is adjusted to maintain 40 degrees Celsius. The valves of the inlet 2, the air inlet 5, and the outlet 13 of the evaluation tube 17 are closed. The valves of the first pressure gauge 6 and the second pressure gauge 10 are turned on. The pressure of the first pressure gauge 6 and the second pressure gauge 10 is 0 MPa. The external pressure of the air inlet of the front cavity is 1 MPa nitrogen.

[0058] Test steps:

[0059] Slowly open the air inlet valve 5 of the front chamber, adjust the pressure of the first chamber 4 to increase by 0.0001 MPa every 5 minutes, and observe the pressure change of the second pressure gauge 10. When the pressure reading of the first pressure gauge 6 suddenly decreases and the pressure reading of the second pressure gauge 10 suddenly increases, and the pressure reading of the first pressure gauge 6 is equal to the pressure reading of the second pressure gauge 10, it indicates that the grease wall sealing material has failed. The maximum pressure displayed by the first pressure gauge 6 is the pipe diameter Φ89, there is no medium in the pipe, the ambient temperature is 40 degrees Celsius, and the pipe is placed horizontally. The sealing material is the ultimate sealing pressure of the grease wall.

[0060] Example 3:

[0061] With a pipe diameter of Φ168 and water as the internal medium, at a room temperature of -10°C, the evaluation focuses on the dissolution time of pipe 17 at a 20-degree angle to the ground, using water-soluble resin as the sealing material.

[0062] Test preparation: Seal the prepared water-soluble resin sealing material at the center of the scale of the second cavity 8 of the evaluation tube 17. The first sealing cap 1 is connected to the evaluation tube 17 by bolts, and sealed in the middle by the first sealing gasket 3. The second sealing cap 12 is connected to the evaluation tube 17 by bolts, and sealed in the middle by the second sealing gasket 11. Adjust the buckle 16 to connect the evaluation tube 17 to the base 15. Adjust the telescopic lifting rod 14 so that the angle between the evaluation tube and the ground is 20 degrees. Turn on the temperature controller 18 and the heat exchanger 20, and adjust the temperature in the temperature control box 19 to maintain it at -10 degrees Celsius. Close the valves of the inlet 2, the air inlet 5 of the front cavity, and the outlet 13 of the evaluation tube 17. Open the valves of the first pressure gauge 6 and the second pressure gauge 10. The pressure display of the first pressure gauge 6 and the second pressure gauge 10 is 0 MPa. The external liquid volume of the inlet 2 is 10L of pure water.

[0063] Test Procedure: Open the inlet valve 2 to fill the first chamber 4 with an oil-water mixture. Start timing and observe the dissolution status of the sealant in the evaluation tube 17 through the observation window 7. Continue injecting liquid into the inlet valve 2 until the tube is filled with the oil-water mixture. Open the outlet valve 13 and control the flow rates at the inlet valve 2 and outlet valve 13 to be consistent, ensuring that the evaluation tube 17 is always filled with the oil-water mixture and forms a flow loop. When no obvious flocculent material is observed in the tube at the observation port, it indicates that the sealant has completely dissolved. The time taken from the start of timing to the complete dissolution of the sealant is the dissolution time of the water-soluble resin sealant under the following conditions: tube diameter Φ168, room temperature -10 degrees Celsius, evaluation tube at a 20-degree angle to the ground, and full liquid flow in the tube.

[0064] The environmentally adaptive pipeline plugging process evaluation device provided by this invention uses an evaluation pipe body 17, two sealing gaskets, and two sealing caps to create a sealed space. The plugging material is then sealed in the second cavity. An external air source is connected to the air inlet 5 of the front cavity, and the pressure in the front and rear cavities is adjusted via the air inlet 5 and the rear drain port 13 to create a pressure difference. An external liquid source is connected to the inlet 2, and the liquid volume in the front and rear cavities is adjusted via the inlet 2, the air inlet 5, and the rear drain port 13 to create different liquid contents. The tilt angle of the evaluation pipe body is adjusted by controlling the length of the two electric telescopic lifting rods of the lifting device, creating a height difference between the front and rear cavities. A temperature control chamber is used to control the test temperature, simulating different operating conditions in actual production. By adaptively adjusting various plugging conditions, the device aims to evaluate the performance of the pipeline plugging process.

[0065] This invention simulates the actual working conditions of the pipe section being sealed during actual sealing operations by injecting different oil, gas, and water media through the air inlet. It can simulate normal or special pressure changes during the actual sealing process by slowly or rapidly increasing the air pressure through the first chamber air inlet. By adjusting the length of the two electric telescopic lifting rods of the lifting device, it can simulate different tilt angles of the pipe during the actual sealing process. A temperature control chamber simulates the ambient temperature during the actual sealing process. In short, by adjusting variables such as pressure, medium, temperature, time, and tilt, various actual sealing conditions can be simulated, and performance parameters such as the material's ultimate sealing pressure, sealing time, dissolution evolution process, and sealing aging time under different sealing processes and working conditions can be determined.

[0066] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An environmentally self-adapting, regulated pipe plugging process evaluation device, characterized in that, The device comprises an evaluation tube (17), the evaluation tube (17) comprises a first cavity (4), a second cavity (8) and a third cavity (9) connected in sequence, a first sealing structure is arranged at the end of the first cavity (4), a first pressure gauge (6) and a gas inlet structure are arranged on the first cavity (4), and a liquid inlet structure is arranged on the first sealing structure; a second sealing structure is arranged at the end of the third cavity (9), a second pressure gauge (10) is arranged on the third cavity (9), and a liquid outlet structure is arranged on the second sealing structure; a pipeline lifting device is arranged below the evaluation tube (17).

2. The environmentally adaptive conditioning pipe-plugging process evaluation device of claim 1, wherein, The first sealing structure comprises a first sealing cover (1) and a first sealing gasket (3); a first flange plate is arranged at the end of the first cavity (4), and the first sealing gasket (3) is located between the first sealing cover (1) and the first flange plate.

3. The environmentally adaptive conditioning pipe-plugging process evaluation device of claim 1, wherein, The second sealing structure comprises a second sealing cover (12) and a second sealing gasket (11); a second flange plate is arranged at the end of the third cavity (9), and the second sealing gasket (11) is located between the second sealing cover (12) and the second flange plate.

4. The environmentally adaptive conditioning pipe-plugging process evaluation device of claim 1, wherein, The pipeline lifting device comprises a base (15) and a telescopic lifting rod (14); One end of the telescopic lifting rod (14) is arranged on the base (15), buckles (16) are arranged on the first cavity (4) and the third cavity (9), and the other end of the telescopic lifting rod (14) is connected with the buckles (16); scales are arranged on the two-section tube of the telescopic lifting rod (14).

5. The environmentally adaptive conditioning pipe-plugging process evaluation device of claim 1, wherein, A scale (21) and an observation window (7) are arranged on the second cavity (8), and the first pressure gauge (6), the second pressure gauge (10) and the gas inlet structure are located on the scale line extension line of the scale (21).

6. The environmentally-adaptable, regulated-piping plugging process evaluation apparatus of claim 1, wherein, A temperature control box (19) is arranged outside the evaluation tube (17).

7. The environmentally-adaptable regulated-piping-plugging process evaluation device of claim 6, wherein, A heat exchanger (20) is arranged outside the temperature control box (19).

8. The environmentally-adaptable, regulated-piping plugging process evaluation apparatus of claim 6, wherein, A temperature controller (18) is arranged inside the temperature control box (19).

9. The environmentally adaptive conditioning pipe-plugging process evaluation device of claim 1, wherein, Valves are arranged on the gas inlet structure, the liquid inlet structure and the liquid outlet structure.

10. An environmentally adaptive, regulated pipe plugging process evaluation method, characterized by, The device comprises: The sealing material is sealed in the second cavity (8), an external gas source is connected to the gas inlet structure, and an external liquid source is connected to the liquid inlet structure; The gas inlet structure, the liquid inlet structure, the liquid outlet structure, the first pressure gauge (6) and the second pressure gauge (10) are used to adjust the pressure and liquid content in the evaluation tube (17); The inclination angle of the evaluation tube (17) is adjusted by controlling the lifting device, and the test temperature is adjusted by the temperature control device, so that the performance evaluation of the sealing process under different working conditions is realized.

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