A steam injection heat isolation compensator for thermal recovery wells and methods of using same

Abstract

The present application relates to the technical fields of heat insulation compensator, and discloses a hot production well steam injection heat insulation compensator and a using method thereof, which comprises a production pipe body and a gas inlet connecting end, the gas inlet connecting end is fixedly connected to the outer wall of the production pipe body, and is characterized in that it further comprises a compensator mechanism, the compensator mechanism is arranged on the outer wall of the gas inlet connecting end, the compensator mechanism comprises a mounting assembly, the mounting assembly is clamped to the outer wall of the gas inlet connecting end, and the top of the mounting assembly is fixedly connected with a main body. When the closed ring cylinder blocks the exhaust hole, a limiting clamping frame is arranged on the top outer wall of the control rod, the control rod is fixed at a specified position, the steam is stored in the heat preservation layer between the main body and the gas inlet pipe, the heat energy lost when the steam enters the production pipe body through the compensator is reduced, the method of filling the heat insulation material in the inner wall of the compensator is replaced, the use cost and the maintenance cost of the compensator are reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation compensator technology, specifically to a steam injection thermal insulation compensator for thermal recovery wells and its usage method. Background Technology

[0002] Heavy oil is an important component of my country's oil and gas resource extraction. Currently, most of the extraction methods used are thermal oil recovery methods such as steam injection or steam-driven extraction. In this process, high-temperature and high-pressure steam above 300°C is injected to reduce the viscosity of heavy oil and improve its fluidity.

[0003] To reduce steam temperature loss, most compensators are filled with insulation material on their inner walls to improve their thermal insulation performance. However, when exposed to high temperatures for extended periods, the insulation material can undergo thermal aging, deformation, embrittlement, or chemical changes, all of which affect its performance and lifespan. Consequently, the insulation material needs to be replaced periodically during long-term use of the compensator, increasing the operating and maintenance costs and reducing the device's practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a steam injection insulation compensator for thermal recovery wells and its usage method, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a steam injection insulation compensator for thermal recovery wells and its usage method, comprising a production pipe body and an air inlet connection end, the air inlet connection end being fixedly connected to the outer wall of the production pipe body, characterized in that it further comprises:

[0007] The compensator mechanism is located on the outer wall of the air intake connection end. The compensator mechanism includes an installation component, which is snapped onto the outer wall of the air intake connection end. The main body is fixedly connected to the top of the installation component. An inner tube is fixedly connected to the top of the installation component inside the main body. An air intake pipe is fixedly connected to the top of the inner tube. A dispersion cylinder is fixedly connected to the top of the main body. An insulation layer is provided between the main body, the air intake pipe, and the inner tube. Three through holes are opened on the top of the insulation layer between the air intake pipe and the main body.

[0008] Furthermore, a clamping extension ring is fixedly connected to the top of the mining pipe near the installation component. The bottom of the clamping extension ring is flat, and a one-way valve is installed inside the air inlet connection end.

[0009] The one-way valve is opened by applying pressure to the one-way valve inside the air inlet connection end using high-temperature and high-pressure steam.

[0010] Furthermore, the mounting component is connected to the inner tube, the inner tube is connected to the air intake pipe, the air intake pipe is connected to the dispersion cylinder, and the compensator mechanism also includes multiple exhaust holes, all of which are opened on the outer wall of the main body near the mounting component. A strip-shaped sliding hole strip is fixedly connected to the inner wall of the inner tube near the mounting component.

[0011] Furthermore, two limiting grooves are provided at the end of the inner wall of the intake pipe away from the dispersion cylinder, and three lifting grooves are provided at the end of the inner wall of the inner pipe near the strip-shaped sliding hole. A partition is fixedly connected to the inner wall of the dispersion cylinder, and three dispersion holes are provided at the top edge of the partition. The dispersion holes are correspondingly set with the through holes. A closed ring cylinder is slidably connected to the outer wall of the main body, and a control rod is rotatably connected to the outer wall of the closed ring cylinder.

[0012] Furthermore, a pushing mechanism is provided inside the inner tube. The pushing mechanism includes a blocking plate, which is slidably connected to the inner wall of the intake pipe. Two connecting strips are fixedly connected to the bottom of the blocking plate. The two connecting strips are slidably connected to the inside of two limiting slide grooves respectively. A lifting ring is fixedly connected to the bottom of the two connecting strips.

[0013] Furthermore, the outer wall of the lifting ring is provided with three sliding blocks, and the three sliding blocks are slidably connected to the interior of three limiting slide grooves respectively. A pressure spring is fixedly connected between the bottom inner wall of the lifting slide groove and the bottom of the sliding block on the lifting ring. A double sliding hole strip is fixedly connected to the inner wall of the lifting ring, and two sliding holes are opened on the outer wall of the double sliding hole strip.

[0014] Furthermore, a closing mechanism is provided at the top of the blocking plate. The closing mechanism includes a connecting rod, which is fixedly connected to the top of the blocking plate. A connecting frame is fixedly connected to the top of the connecting rod. Multiple tension springs are fixedly connected between the connecting frame and the partition. Three closing blocks are fixedly connected to the bottom of the connecting frame. Connecting rings are fixedly connected to the top of the three closing blocks. The three closing blocks are respectively inserted into three through holes.

[0015] Furthermore, a clamping mechanism is provided inside the double sliding hole strip. The clamping mechanism includes a slide frame one, which is slidably connected to the inside of one of the sliding holes on the double sliding hole strip. A slide frame two is slidably connected to the inside of a sliding hole on the double sliding hole strip away from the slide frame one. A double connecting strip is rotatably connected to the bottom of the slide frame one, and a single connecting strip is rotatably connected to the bottom of the slide frame two. The double connecting strip and the single connecting strip are arranged intersectingly. A fitting clamping frame is rotatably connected to the bottom of both the single connecting strip and the double connecting strip. The fitting clamping frame is correspondingly arranged with the clamping extension ring.

[0016] A method for using a steam injection thermal insulation compensator in a thermal recovery well includes the following steps:

[0017] S1: Install the entire device on the air inlet connection end using the mounting components, and connect the connection end at the top of the dispersion cylinder to the high-pressure steam pipeline;

[0018] S2: After the steam enters the inside of the dispersion cylinder, it flows downward through multiple dispersion holes at the edge of the mounting component, allowing the high-pressure steam to enter the inside of the inlet pipe;

[0019] S3: It enters the insulation layer between the main body and the air inlet pipe through multiple through holes. When the steam enters the space between the main body and the installation components, it will gradually fill the insulation layer with high-temperature steam, allowing the excess gas inside the insulation layer to be discharged through the exhaust hole.

[0020] S4: Manually control the closed ring cylinder to slide down the outer wall of the main body via the control lever to block the exhaust port, so that the steam is stored inside the insulation layer between the main body and the air inlet pipe.

[0021] The present invention has the following beneficial effects:

[0022] (1) In this invention, the entire device is installed on the air inlet connection end via an installation assembly. Simultaneously, the connection end at the top of the dispersion cylinder is connected to a high-pressure steam pipe. After steam enters the dispersion cylinder, it flows downwards through multiple dispersion holes at the edge of the installation assembly, allowing high-pressure steam to enter the air inlet pipe. Simultaneously, it enters the insulation layer between the main body and the air inlet pipe through multiple through-holes. As the steam enters the space between the main body and the installation assembly, it gradually fills the insulation layer with high-temperature steam, causing excess gas inside the insulation layer to be discharged through the exhaust port. During the process of steam filling the insulation layer and discharging the gas inside through the exhaust port, some pressure will be released through the partition. The steam is dispersed to both sides, preventing the installation components from descending into the inner pipe due to air pressure. After filling the insulation layer with steam for a period of time, the sealing ring is manually controlled by the control rod to slide down the outer wall of the main body to seal the exhaust port. Once the sealing ring has sealed the exhaust port, a limit bracket is set on the outer wall of the top of the control rod to fix the control rod in a designated position, allowing the steam to be stored inside the insulation layer between the main body and the air inlet pipe. This reduces the heat energy lost when the steam enters the mining pipe through the compensator, replacing the method of filling the inner wall of the compensator with heat insulation material. This reduces the use and maintenance costs of the compensator and improves the practicality of the device.

[0023] (2) By setting up a baffle and a dispersion hole, the steam can flow downwards from both sides after entering the dispersion cylinder. This allows the steam to first enter the insulation layer between the main body and the inlet pipe through the through hole, avoiding the impact of high-pressure steam directly on the top of the blocking plate. This prevents the blocking plate from sliding downwards and causing the sealing block to block the through hole if the insulation layer between the main body and the inlet pipe is not filled with high-temperature steam. Furthermore, after the exhaust hole is blocked by the sealing ring, the pressure injected into the dispersion cylinder will quickly fill the insulation layer and the inside of the inlet pipe, thereby pushing the blocking plate inside the inlet pipe due to the pressure. The lower part slides down, causing the two connecting strips to slide inside the two lifting grooves respectively, so that the connecting strips disengage from the lifting grooves, thereby allowing the blocking plate to enter the inner tube. This allows high-pressure gas to enter the inner tube and continue to be transmitted downwards. When the blocking plate slides down, the connecting rod applies a downward pulling force to the connecting frame, stretching the tension spring, thereby driving the sealing block into the through hole to seal the through hole. This prevents the steam inside the insulation layer between the main body and the air inlet pipe from continuously exchanging heat with the steam transmitted into the mining pipe body, thus preventing the continuous loss of temperature of the steam transmitted into the mining pipe body.

[0024] (3) During the descent of the installation component of the present invention, the connecting strip pushes the lifting ring to slide on the inner wall of the inner tube, and the sliding block on the outer wall of the lifting ring slides down inside the lifting groove. At the same time, the pressure spring is compressed. Through the cross-set double connecting strip and single connecting strip, the pressure applied downward by the double sliding hole strip pushes the slide frame one and slide frame two to slide relative to each other in the two sliding holes on the double sliding hole strip. At the same time, it pushes the two fitting clamping frames to move away from each other inside the strip-shaped sliding hole strip, so that the fitting clamping frames gradually enter below the clamping extension ring. And through the continuous pressure of high-pressure steam during compensation, the two fitting clamping frames are continuously squeezed towards the inner wall of the air inlet connection end, thereby improving the tightness of the connection between the installation component and the air inlet connection end, making the connection between the installation component and the air inlet connection end more stable when the compensator is in use.

[0025] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a partial cross-sectional view of the present invention;

[0029] Figure 3 This is a schematic diagram of the compensator mechanism of the present invention;

[0030] Figure 4 This is a schematic diagram of the actuator structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the closed mechanism structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the clamping mechanism structure of the present invention;

[0033] Figure 7 for Figure 3 Enlarged view of point A in the middle;

[0034] Figure 8 for Figure 3 Enlarged view at point B in the middle;

[0035] Figure 9 for Figure 4 Enlarged view at point C;

[0036] Figure 10 This is a diagram of the method of the present invention.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] In the diagram: 1. Mining pipe body; 101. Air inlet connection end; 102. Clamping extension ring; 2. Compensator mechanism; 201. Mounting assembly; 202. Main body; 203. Inner pipe; 204. Air inlet pipe; 205. Exhaust port; 206. Strip-shaped sliding hole strip; 207. Lifting slide groove; 208. Limiting slide groove; 209. Dispersion cylinder; 210. Baffle plate; 211. Dispersion hole; 212. Through hole; 213. Sealing ring cylinder; 214. Control 3. Pushing mechanism; 301. Blocking plate; 302. Connecting bar; 303. Lifting ring; 304. Double sliding hole bar; 305. Pressure spring; 4. Closing mechanism; 401. Connecting rod; 402. Connecting frame; 403. Connecting ring; 404. Closing block; 405. Tension spring; 5. Clamping mechanism; 501. Slide 1; 502. Slide 2; 503. Double connecting bar; 504. Single connecting bar; 505. Fitting clamping frame. Detailed Implementation

[0039] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1, please refer to Figures 1-9 As shown, this invention relates to a steam injection insulation compensator for thermal recovery wells and its usage method, comprising a production pipe body 1 and an air inlet connection end 101, the air inlet connection end 101 being fixedly connected to the outer wall of the production pipe body 1, characterized in that it further comprises:

[0041] Compensator mechanism 2 is located on the outer wall of the air inlet connection end 101. Compensator mechanism 2 includes a mounting component 201, which is snapped onto the outer wall of the air inlet connection end 101. A main body 202 is fixedly connected to the top of the mounting component 201. An inner tube 203 is fixedly connected to the top of the mounting component 201 inside the main body 202. An air inlet pipe 204 is fixedly connected to the top of the inner tube 203. A dispersion cylinder 209 is fixedly connected to the top of the main body 202. A heat insulation layer is provided between the main body 202, the air inlet pipe 204, and the inner tube 203. Three through holes 212 are opened at the top of the heat insulation layer between the air inlet pipe 204 and the main body 202. The mounting component 201 communicates with the inner tube 203. The compensator mechanism 2 is connected to the intake pipe 204, which in turn is connected to the dispersion cylinder 209. The compensator mechanism 2 also includes multiple exhaust ports 205, all located on the outer wall of the main body 202 near the mounting component 201. A strip-shaped sliding hole strip 206 is fixedly connected to the inner wall of the inner pipe 203 near the mounting component 201. Two limiting grooves 208 are provided on the inner wall of the intake pipe 204 away from the dispersion cylinder 209. Three lifting grooves 207 are provided on the inner wall of the inner pipe 203 near the strip-shaped sliding hole strip 206. A partition plate 210 is fixedly connected to the inner wall of the dispersion cylinder 209. Three dispersion holes 211 are provided at the top edge of the partition plate 210, corresponding to the through holes 212. A closed ring cylinder 213 is slidably connected to the outer wall of the body 202, and a control rod 214 is rotatably connected to the outer wall of the closed ring cylinder 213. The entire device is mounted on the air inlet connection end 101 via the mounting assembly 201, while the connection end at the top of the dispersion cylinder 209 is connected to the high-pressure steam pipeline. After steam enters the interior of the dispersion cylinder 209, it flows downward through multiple dispersion holes 211 at the edge of the mounting assembly 201, allowing the high-pressure steam to enter the interior of the air inlet pipe 204. Simultaneously, it enters the interior of the insulation layer between the body 202 and the air inlet pipe 204 through multiple through holes 212. When steam enters the space between the body 202 and the mounting assembly 201, it gradually fills the interior of the insulation layer with high-temperature steam, thus eliminating excess steam inside the insulation layer. The steam is discharged through the exhaust port 205. During the process of filling the insulation layer with steam, some of the pressure will be dispersed to both sides through the partition plate 210, so that the installation component 201 will not fall into the inner tube 203 due to air pressure. After the insulation layer is filled with steam for a period of time, the sealing ring cylinder 213 is manually controlled to slide down the outer wall of the main body 202 by the control rod 214 to block the exhaust port 205. After the sealing ring cylinder 213 blocks the exhaust port 205, the control rod 214 is fixed in a designated position by setting a limit bracket on the top outer wall of the control rod 214, so that the steam is stored in the insulation layer between the main body 202 and the air inlet pipe 204.

[0042] A clamping extension ring 102 is fixedly connected to one end of the top of the mining pipe 1 near the installation component 201. The bottom of the clamping extension ring 102 is flat, and a one-way valve is provided inside the air inlet connection end 101.

[0043] The one-way valve is opened by applying pressure to the one-way valve inside the air inlet connection 101 using high-temperature and high-pressure steam.

[0044] An internal pushing mechanism 3 is provided inside the inner tube 203. The pushing mechanism 3 includes a blocking plate 301, which is slidably connected to the inner wall of the intake pipe 204. Two connecting strips 302 are fixedly connected to the bottom of the blocking plate 301. The two connecting strips 302 are slidably connected to the inside of two limiting slide grooves 208, respectively. A lifting ring 303 is fixedly connected to the bottom of the two connecting strips 302. Three sliding blocks are provided on the outer wall of the lifting ring 303, and the three sliding blocks are slidably connected to the inside of the three limiting slide grooves 208, respectively. A pressure spring 305 is fixedly connected between the bottom inner wall of the lifting slide groove 207 and the bottom of the sliding block on the lifting ring 303. A double sliding hole strip 304 is fixedly connected to the inner wall of the descending ring 303. Two sliding holes are opened on the outer wall of the double sliding hole strip 304. After the exhaust hole 205 is blocked by the sealing ring cylinder 213, the pressure injected into the dispersion cylinder 209 will quickly fill the insulation layer and the interior of the air inlet pipe 204. As a result, the pressure will push the blocking plate 301 to slide down inside the air inlet pipe 204, causing the two connecting strips 302 to slide in the two lifting sliding grooves 207 respectively. This will cause the connecting strips 302 to disengage from the lifting sliding grooves 207, thereby allowing the blocking plate 301 to enter the interior of the inner tube 203, so that the high-pressure gas enters the interior of the inner tube 203 and continues to be transmitted downward.

[0045] A sealing mechanism 4 is provided at the top of the blocking plate 301. The sealing mechanism 4 includes a connecting rod 401, which is fixedly connected to the top of the blocking plate 301. A connecting frame 402 is fixedly connected to the top of the connecting rod 401. Multiple tension springs 405 are fixedly connected between the connecting frame 402 and the partition plate 210. Three sealing blocks 404 are fixedly connected to the bottom of the connecting frame 402. A connecting ring 403 is fixedly connected to the top of the three sealing blocks 404. The three sealing blocks 404 are respectively inserted into three through holes 212. When the blocking plate 301 slides down, the connecting rod 401 applies a downward pulling force to the connecting frame 402, which stretches the tension springs 405, thereby driving the sealing blocks 404 into the through holes 212 to seal the through holes 212 and prevent the steam inside the insulation layer between the main body 202 and the air inlet pipe 204 from continuously exchanging heat with the steam transmitted to the mining pipe 1.

[0046] The double sliding hole strip 304 is internally equipped with a clamping mechanism 5, which includes a first slide 501 slidably connected to one of the sliding holes on the double sliding hole strip 304. A second slide 502 is slidably connected to a sliding hole on the double sliding hole strip 304 away from the first slide 501. A double connecting strip 503 is rotatably connected to the bottom of the first slide 501, and a single connecting strip 504 is rotatably connected to the bottom of the second slide 502. The double connecting strip 503 and the single connecting strip 504 are arranged intersectingly. A fitting clamping frame 505 is rotatably connected to the bottom of both the single connecting strip 504 and the double connecting strip 503. The fitting clamping frame 505 is correspondingly arranged to clamp the extension ring 102. The lifting ring 303 is pushed by the connecting strip 302 within the inner tube. The inner wall of 203 slides, and the sliding block of the outer wall of the lifting ring 303 slides down inside the lifting groove 207. At the same time, the pressure spring 305 is compressed. Through the cross-arranged double connecting bar 503 and single connecting bar 504, the pressure applied downward by the double sliding hole bar 304 pushes the slide frame 1 501 and slide frame 2 502 to slide relative to each other in the two sliding holes on the double sliding hole bar 304. At the same time, it pushes the two fitting clamping frames 505 to move away from each other inside the strip sliding hole bar 206, so that the fitting clamping frames 505 gradually enter below the clamping extension ring 102. And through the continuous pressure of high pressure steam during compensation, the two fitting clamping frames 505 are continuously squeezed towards the inner wall of the air inlet connection end 101.

[0047] In use, the entire device is mounted on the air inlet connection end 101 via the mounting assembly 201. Simultaneously, the top connection end of the dispersion cylinder 209 is connected to the high-pressure steam pipeline. Steam enters the dispersion cylinder 209 and flows downwards through multiple dispersion holes 211 at the edge of the mounting assembly 201, allowing high-pressure steam to enter the air inlet pipe 204. Simultaneously, it enters the insulation layer between the main body 202 and the air inlet pipe 204 through multiple through holes 212. As steam enters the space between the main body 202 and the mounting assembly 201, it gradually fills the insulation layer with high-temperature steam, causing excess gas inside the insulation layer to be discharged through the exhaust hole 205. The steam fills the insulation layer, allowing the gas inside to be discharged through the exhaust hole 205. During the process, some pressure will be distributed to both sides through the partition 210, thus preventing the installation component 201 from descending into the inner tube 203 due to air pressure. After filling the insulation layer with steam for a period of time, the closing ring cylinder 213 is manually controlled to slide down the outer wall of the main body 202 by the control rod 214 to block the exhaust hole 205. After the closing ring cylinder 213 blocks the exhaust hole 205, the control rod 214 is fixed in a designated position by setting a limit bracket on the top outer wall of the control rod 214, so that the steam is stored in the insulation layer between the main body 202 and the air inlet pipe 204, thereby reducing the heat energy lost when the steam enters the mining pipe 1 through the compensator, replacing the method of filling the inner wall of the compensator with heat insulation material.

[0048] Example 2, please refer to Figures 1-9 As shown, during use, by setting the baffle 210 and the dispersion hole 211, steam can flow downwards from both sides after entering the dispersion cylinder 209. This allows the steam to first enter the insulation layer between the main body 202 and the inlet pipe 204 through the through hole 212, preventing high-pressure steam from directly impacting the top of the blocking plate 301. This prevents the blocking plate 301 from sliding downwards and causing the sealing block 404 to seal the through hole 212 before the insulation layer between the main body 202 and the inlet pipe 204 is filled with high-temperature steam. After the exhaust hole 205 is sealed by the sealing ring cylinder 213, the pressure injected into the dispersion cylinder 209 will quickly fill the insulation layer and the interior of the inlet pipe 204, thus preventing the steam from being trapped due to pressure. The blocking plate 301 is pushed down inside the air inlet pipe 204, causing the two connecting bars 302 to slide inside the two lifting slide grooves 207 respectively. This causes the connecting bars 302 to disengage from the lifting slide grooves 207, allowing the blocking plate 301 to enter the inner pipe 203. This allows high-pressure gas to enter the inner pipe 203 and continue to be transmitted downwards. When the blocking plate 301 slides down, the connecting rod 401 applies a downward pulling force to the connecting frame 402, stretching the tension spring 405. This causes the sealing block 404 to enter the through hole 212, sealing the through hole 212 and preventing the steam inside the insulation layer between the main body 202 and the air inlet pipe 204 from continuously exchanging heat with the steam transmitted to the mining pipe body 1.

[0049] During the descent of the mounting assembly 201, the connecting strip 302 pushes the lifting ring 303 to slide on the inner wall of the inner tube 203, and causes the sliding block on the outer wall of the lifting ring 303 to slide down inside the lifting groove 207. At the same time, the pressure spring 305 is compressed. Through the cross-arranged double connecting strip 503 and single connecting strip 504, the downward pressure applied by the double sliding hole strip 304 pushes the slide frame 1 501 and slide frame 2 502 to slide relative to each other in the two sliding holes on the double sliding hole strip 304. At the same time, it pushes the two fitting clamping frames 505 away from each other inside the strip-shaped sliding hole strip 206, so that the fitting clamping frames 505 gradually enter below the clamping extension ring 102. And through the continuous pressure of high-pressure steam during compensation, the two fitting clamping frames 505 are continuously squeezed towards the inner wall of the air inlet connection end 101, thereby improving the tightness of the connection between the mounting assembly 201 and the air inlet connection end 101.

[0050] A method for using a steam injection thermal insulation compensator in a thermal recovery well includes the following steps:

[0051] S1: The entire device is installed on the air inlet connection end 101 via the mounting assembly 201, and the connection end at the top of the dispersion cylinder 209 is connected to the high-pressure steam pipeline.

[0052] S2: After the steam enters the dispersion cylinder 209, it flows downward through multiple dispersion holes 211 at the edge of the mounting component 201, allowing the high-pressure steam to enter the air inlet pipe 204;

[0053] S3: The steam enters the insulation layer between the main body 202 and the air inlet pipe 204 through multiple through holes 212. When the steam enters the space between the main body 202 and the mounting component 201, it will gradually fill the insulation layer with high-temperature steam, allowing the excess gas inside the insulation layer to be discharged through the exhaust hole 205.

[0054] S4: Manually control the closed ring cylinder 213 to slide down the outer wall of the main body 202 via the control lever 214 to block the exhaust port 205, so that the steam is stored inside the insulation layer between the main body 202 and the air inlet pipe 204.

[0055] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A steam injection insulation compensator for a thermal recovery well, comprising a production pipe (1) and an air inlet connection end (101), wherein the air inlet connection end (101) is fixedly connected to the outer wall of the production pipe (1), characterized in that, Also includes: The compensator mechanism (2) is disposed on the outer wall of the air inlet connection end (101). The compensator mechanism (2) includes an installation component (201). The installation component (201) is snapped onto the outer wall of the air inlet connection end (101). The top of the installation component (201) is fixedly connected to the main body (202). The top of the installation component (201) is fixedly connected to an inner tube (203) located inside the main body (202). The top of the inner tube (203) is fixedly connected to an air inlet pipe (204). The top of the main body (202) is fixedly connected to a dispersion cylinder (209). An insulation layer is provided between the main body (202), the air inlet pipe (204), and the inner tube (203). The top of the insulation layer between the air inlet pipe (204) and the main body (202) has three through holes (212).

2. The steam injection insulation compensator for thermal recovery wells according to claim 1, characterized in that: The top of the mining pipe (1) is fixedly connected to a clamping extension ring (102) near the installation assembly (201). The bottom of the clamping extension ring (102) is flat, and a one-way valve is provided inside the air inlet connection end (101). The one-way valve is opened by applying pressure to the one-way valve inside the air inlet connection (101) using high-temperature and high-pressure steam.

3. A steam injection insulation compensator for thermal recovery wells according to claim 2, characterized in that: The mounting assembly (201) is connected to the inner tube (203), the inner tube (203) is connected to the air intake pipe (204), the air intake pipe (204) is connected to the dispersion cylinder (209), the compensator mechanism (2) also includes a plurality of exhaust holes (205), the plurality of exhaust holes (205) are all opened on the outer wall of the main body (202) near the mounting assembly (201), and a strip-shaped sliding hole strip (206) is fixedly connected to the inner wall of the inner tube (203) near the mounting assembly (201).

4. A steam injection insulation compensator for thermal recovery wells according to claim 3, characterized in that: Two limiting grooves (208) are provided at the end of the inner wall of the air inlet pipe (204) away from the dispersion cylinder (209). Three lifting grooves (207) are provided at the end of the inner wall of the inner pipe (203) near the strip-shaped sliding hole strip (206). A partition plate (210) is fixedly connected to the inner wall of the dispersion cylinder (209). Three dispersion holes (211) are provided at the top edge of the partition plate (210). The dispersion holes (211) are correspondingly arranged with the through holes (212). A closed ring cylinder (213) is slidably connected to the outer wall of the main body (202). A control rod (214) is rotatably connected to the outer wall of the closed ring cylinder (213).

5. A steam injection insulation compensator for thermal recovery wells according to claim 4, characterized in that: The inner tube (203) is provided with a pushing mechanism (3), which includes a blocking plate (301). The blocking plate (301) is slidably connected to the inner wall of the air intake pipe (204). Two connecting strips (302) are fixedly connected to the bottom of the blocking plate (301). The two connecting strips (302) are slidably connected to the inside of two limiting slide grooves (208) respectively. A lifting ring (303) is fixedly connected to the bottom of the two connecting strips (302).

6. A steam injection insulation compensator for thermal recovery wells according to claim 5, characterized in that: The outer wall of the lifting ring (303) is provided with three sliding blocks, and the three sliding blocks are respectively slidably connected to the interior of the three limiting grooves (208). A pressure spring (305) is fixedly connected between the bottom inner wall of the lifting groove (207) and the bottom of the sliding block on the lifting ring (303). A double sliding hole strip (304) is fixedly connected to the inner wall of the lifting ring (303), and two sliding holes are opened on the outer wall of the double sliding hole strip (304).

7. A steam injection insulation compensator for thermal recovery wells according to claim 6, characterized in that: The top of the blocking plate (301) is provided with a closing mechanism (4), the closing mechanism (4) includes a connecting rod (401), the connecting rod (401) is fixedly connected to the top of the blocking plate (301), the top of the connecting rod (401) is fixedly connected to a connecting frame (402), a plurality of tension springs (405) are fixedly connected between the connecting frame (402) and the partition plate (210), three closing blocks (404) are fixedly connected to the bottom of the connecting frame (402), the top of the three closing blocks (404) is fixedly connected to a connecting ring (403), and the three closing blocks (404) are respectively inserted into three through holes (212).

8. A steam injection insulation compensator for thermal recovery wells according to claim 7, characterized in that: The double sliding hole strip (304) is provided with a clamping mechanism (5). The clamping mechanism (5) includes a slide frame one (501). The slide frame one (501) is slidably connected to one of the sliding holes on the double sliding hole strip (304). A slide frame two (502) is slidably connected to one of the sliding holes on the double sliding hole strip (304) away from the slide frame one (501). A double connecting strip (503) is rotatably connected to the bottom of the slide frame one (501). A single connecting strip (504) is rotatably connected to the bottom of the slide frame two (502). The double connecting strip (503) and the single connecting strip (504) are arranged crosswise. The bottom of both the single connecting strip (504) and the double connecting strip (503) is rotatably connected to a fitting clamping frame (505). The fitting clamping frame (505) is correspondingly arranged with the clamping extension ring (102).

9. A method for using a steam injection insulation compensator for thermal recovery wells, employing the steam injection insulation compensator for thermal recovery wells as described in claim 8, characterized in that: Includes the following steps: S1: The entire device is installed on the air inlet connection end (101) via the mounting assembly (201), while the connection end at the top of the dispersion cylinder (209) is connected to the high-pressure steam pipeline; S2: After the steam enters the interior of the dispersion cylinder (209), it flows downward through multiple dispersion holes (211) at the edge of the mounting component (201), allowing the high-pressure steam to enter the interior of the air inlet pipe (204); S3: It enters the insulation layer between the main body (202) and the air inlet pipe (204) through multiple through holes (212). When the steam enters between the main body (202) and the installation component (201), it will gradually fill the insulation layer with high temperature steam, so that the excess gas inside the insulation layer is discharged through the exhaust hole (205). S4: Manually control the closed ring cylinder (213) to slide down the outer wall of the main body (202) by controlling the control rod (214) to block the exhaust hole (205) and keep the steam inside the insulation layer between the main body (202) and the air inlet pipe (204).

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