Device and method for exploiting heavy oil reservoir

Abstract

The invention relates to the technical field of thickened oil exploitation, and particularly discloses a device and method for exploiting a thickened oil reservoir, the device comprises a high-temperature material pipe, an oil pumping pipe is arranged in the high-temperature material pipe, a supporting sleeve is fixedly installed on the outer side face of the high-temperature material pipe, and a gap is formed between the high-temperature material pipe and the oil pumping pipe; a supporting ring is arranged on the outer side of the high-temperature material pipe. Third penetrating openings are evenly formed in the circumferential face of the supporting ring in an annular array mode. Under the action of the supporting ring, conveying and oil pumping of high-temperature fluid can be conducted at the same time, at the moment, moisture in thickened oil can be isolated under the action of the hydrophobic oil film, the thickened oil can pass through the hydrophobic oil film, the high-temperature fluid can pass through the high-temperature fluid isolation net, the thickened oil cannot pass through the high-temperature fluid isolation net, and at the moment, the situation that two tube wells are formed can be avoided; and therefore, the early-stage operation time is shortened, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy oil exploitation, and in particular to a device and method for exploiting heavy oil reservoirs. Background Art

[0002] As a heavy crude oil with high viscosity, heavy oil has attracted much attention due to its poor fluidity and difficulty in extraction. The extraction of heavy oil faces many challenges. Traditional extraction methods are often difficult to adapt to the characteristics of heavy oil, resulting in low extraction efficiency and high costs.

[0003] For example, most traditional mining methods on the market use external material injection to allow the heavy oil to flow before conducting heavy oil operations.

[0004] However, the above-mentioned injection method requires the opening of two pipeline wells on the seabed during the operation, one for pumping oil and the other for transporting external materials. The mining operation time is relatively long at this time. Moreover, the preliminary operation requires the establishment of a dedicated pipeline well for high-temperature materials, and the operation method is relatively time-consuming.

[0005] Therefore, we propose a device and method for exploiting heavy oil reservoirs. Summary of the Invention

[0006] The purpose of the present invention is to provide a device and method for exploiting heavy oil reservoirs to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a device and method for exploiting a heavy oil reservoir, comprising a high-temperature material pipe, an oil pumping pipe being provided inside the high-temperature material pipe, and a support sleeve being fixedly installed on the outer side of the high-temperature material pipe; There is a gap between the high-temperature material pipe and the oil pumping pipe, and a support ring is provided on the outside of the high-temperature material pipe. The circumferential surface of the support ring is evenly provided with third through-holes in an annular array. Two of the third through-holes are fixedly installed with hydrophobic oil films, and the other two third through-holes are fixedly installed with high-temperature fluid isolation nets; A second connecting pipe is fixedly installed on the inner circumferential surface of two of the third through-holes, and a rectangular frame is fixedly installed on the other end of the second connecting pipe. Sealing plates are evenly arranged in an annular array inside the rectangular frame, and a third connecting pipe is arranged on the inner side of the rectangular frame. The other end of the third connecting pipe passes through the circumferential surface of the high-temperature material pipe and the oil pumping pipe and is fixedly connected.

[0008] Preferably, first through-holes are evenly arranged in a circular array on the circumferential surface of the high-temperature material pipe, and four first through-holes are grouped together and arranged at equal intervals on the circumferential surface of the high-temperature material pipe. Second through-holes are symmetrically opened on the circumferential surface of the oil extraction pipe, and the second through-holes and adjacent first through-holes are in an aligned state.

[0009] Preferably, the interior of the first through-hole and the adjacent third connecting pipe are in sliding connection, the first connecting pipe is fixedly installed on the outside of the first through-hole, the outside of the first connecting pipe is fixedly connected to the support ring, and the first connecting pipe and the third through-hole are connected.

[0010] Preferably, a fourth through-hole is opened from the upper end surface of the rectangular frame to the inside, a first motor is fixedly mounted on the upper end surface of the rectangular frame, and a driving gear is fixedly mounted on the output shaft of the first motor.

[0011] Preferably, a first ring groove is provided inside the rectangular frame, a gear ring is rotatably installed inside the first ring groove, and an inner side surface of the gear ring is provided with six beveled grooves that are interconnected.

[0012] Preferably, the inner annular array of adjacent ends of the rectangular frame is evenly fixed with inclined plates, the inner sides of the inclined plates are commonly fixed with connecting rings, the outer sides of the connecting rings are fixed with a second connecting pipe, the outer end of the second connecting pipe is fixedly connected to the support ring, and is connected to the adjacent third through-hole, and is connected to the hydrophobic oil film, an inclined groove is provided from the outer side surface to the inner side surface of the inclined plate, and a sealing plate is provided between the inclined plate and the gear ring.

[0013] Preferably, a slider is fixedly installed at a right-angle position on the straight edge of the sealing plate, and the slider is slidably installed inside the beveled groove. A sliding rod is fixedly installed at the inner center position of the straight edge of the sealing plate, and one inner end of the sliding rod is slidably installed inside the beveled groove.

[0014] Preferably, telescopic pumps are evenly fixedly installed in a circular array on the outer circumferential surface of the high-temperature material pipe, and a first arc-shaped plate is fixedly installed on the telescopic rod of the telescopic pump. The outer side surface of the first arc-shaped plate is a U-shaped structure, and first sliding grooves are provided at the upper and lower ends of the inner side of the U-shape of the outer side of the first arc-shaped plate. Arc-shaped sliding rods are slidably installed inside the first sliding grooves, and a second arc-shaped plate is fixedly installed on the inner side of the arc-shaped sliding rods.

[0015] Preferably, a triangular tube is fixedly installed on the upper end surface of the high-temperature material tube, a connecting tube is fixedly installed on the upper end of the oil pumping pipe, an anti-leakage clamp is provided on the outer side of the lower end of the triangular tube, and the upper end of the connecting tube is located outside the triangular tube.

[0016] A method for exploiting offshore heavy oil reservoirs comprises the following steps: Step 1: Assemble the high-temperature material pipe and the pumping pipe together, fix the support casing to the outside of the high-temperature material pipe to form a basic wellbore structure, pass the third connecting pipe through the second through-hole and fixedly connect it to the pumping pipe, and pass the third connecting pipe through the first through-hole; Step 2: Install a hydrophobic oil film and a high-temperature fluid separator in the third through-hole of the support ring. Check the linkage flexibility of the sealing plate, gear ring, and drive gear in the rectangular frame. Use the first motor to adjust the opening and closing of the sealing plate to determine the oil pumping speed. Step 3: Fix the telescopic pump to the outside of the high-temperature material pipe, connect the first curved plate and the second curved plate, adjust the sliding performance of the curved slide bar in the first slide groove, ensure that the outer diameter of the wellbore can be adjusted by the telescopic pump when encountering obstructions, install the triangular pipe on the top of the high-temperature material pipe, connect the connecting pipe at the upper end of the pumping pipe, and ensure that the anti-leakage clamp is sealed reliably to prevent seawater backflow during offshore operations; Step 4: The triangular pipe injects high-temperature fluid into the high-temperature material pipe, passes through the second connecting pipe, and then passes through the high-temperature fluid isolation net to perform high-temperature operation on the heavy oil. At this time, the sealing plate is in a sealed state. When the heavy oil reaches the appropriate temperature, the oil pump is started, and the heated and viscosity-reduced heavy oil is sucked into the wellbore through the oil pumping pipe and transported to the offshore platform through the connecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, under the action of the support ring, can simultaneously transport external substances and pump oil. At this time, under the action of the hydrophobic oil film, it can isolate the water in the heavy oil, allowing the heavy oil to pass through. The high-temperature fluid separator can allow the high-temperature fluid to pass through without letting the heavy oil pass through. This can solve the problem of opening two pipe wells, thereby reducing the initial operation time and improving operation efficiency.

[0018] 2. The present invention, through the mutual cooperation between the telescopic pump, the first curved plate, the second curved plate, the curved slide rod and the first slide groove, can adjust the outer diameter of the high-temperature material pipe through the telescopic pump when the wellbore is blocked, thereby supporting the interior of the pipe well, thereby avoiding damage to the equipment when the pipe well is damaged, and further improving the flexibility and reliability of the operation.

[0019] 3. During operation, in order to ensure the extraction of heavy oil, the present invention starts the first motor, and the output shaft of the first motor rotates the driving gear, which in turn rotates the gear ring, which in turn rotates the sealing plate. This allows the heavy oil to be sealed in the event of a blowout, ensuring the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the main body of the present invention; Figure 2 The triangular tube and the anti-leakage holder of the present invention; Figure 3 This is a structural diagram of the support sleeve of the present invention; Figure 4 It is a schematic diagram of the component structure of the present invention; Figure 5 Schematic diagram of the high-temperature material pipe and the oil pumping pipe of the present invention; Figure 6 This is a schematic diagram of the interior of the support ring of the present invention; Figure 7 This is a structural diagram of the gear ring of the present invention; Figure 8 This is a structural diagram of the first curved plate and the second curved plate of the present invention.

[0022] Description of reference numerals: 1. Triangular tube; 2. Connecting tube; 3. Anti-leakage clamp; 4. High-temperature material tube; 401. First through-hole; 5. Pumping tube; 501. Second through-hole; 6. Support sleeve; 7. Telescopic pump; 8. First curved plate; 9. First slide groove; 10. Second curved plate; 11. Curved slide rod; 12. Support ring; 13. Third through-hole; 14. Hydrophobic oil film; 15. High-temperature fluid separator; 16. First connecting tube; 17. Second connecting tube; 18. Rectangular frame; 19. Fourth through-hole; 20. First motor; 21. Drive gear; 22. First ring groove; 23. Gear ring; 24. Beveled slide groove; 25. Inclined plate; 26. Inclined groove; 27. Connecting ring; 28. Third connecting tube; 29. ​​Sealing plate; 30. Slider; 31. Slide rod. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 8, the present invention provides a technical solution: A device for exploiting heavy oil reservoirs includes a triangular tube 1, a connecting tube 2 is fixedly installed inside the triangular tube 1, and the top of the connecting tube 2 is located outside the triangular tube 1. Figure 1 As shown, an anti-leakage clamp 3 is vertically provided on the outer circumferential surface of the lower end of the triangular tube 1. During use, the anti-leakage clamp 3 can ensure the stability of the triangular tube 1 in the deep sea and avoid leakage problems caused by water impact or geological changes.

[0025] The anti-leakage clamp 3 is designed with high-strength alloy materials, which have good corrosion resistance and wear resistance, and can operate stably for a long time in harsh marine environments. In addition, the anti-leakage clamp 3 is also equipped with an intelligent monitoring system that can monitor the clamp's tightening status and sealing performance in real time. Once an abnormal situation is detected, an alarm will be immediately issued to ensure that the operator can take timely measures to deal with it.

[0026] The tops of the triangular tube 1 and the connecting tube 2 are connected to high-temperature equipment and an oil pump, respectively. During operation, the high-temperature equipment can provide the necessary heat energy to heat the crude oil in the heavy oil reservoir, reduce its viscosity, and improve its fluidity, making it easier to mine. At the same time, the oil pump is responsible for extracting the heated crude oil from the connecting tube 2 and transporting it to subsequent processing equipment. This design not only improves mining efficiency, but also effectively reduces energy consumption and environmental pollution. During operation, the working status of the high-temperature equipment and the oil pump can be precisely adjusted through the control system to ensure the stability and reliability of the entire mining process.

[0027] Then, a high-temperature material pipe 4 is fixedly installed at the lower end of the triangular pipe 1, and an oil pumping pipe 5 is fixedly installed at the lower end of the connecting pipe 2, wherein the oil pumping pipe 5 is located on the inner side of the high-temperature material pipe 4. Then, a support sleeve 6 is fixedly installed on the outer circumferential surface of the high-temperature material pipe 4 to support the pipe well and avoid collapse. Figure 3 As shown, there is a gap between the high-temperature substance pipe 4 and the oil extraction pipe 5 .

[0028] like Figure 3 As shown, there are multiple support sleeves 6, and the spacing between two adjacent support sleeves 6 is mainly used to prevent the support sleeves 6 from sealing the high-temperature fluid and oil pumping operations of the subsequent operations in order to facilitate the subsequent operations of the first curved plate 8 and the second curved plate 10, resulting in the high-temperature fluid being unable to be discharged and the oil pumping being unable to be carried out.

[0029] First through-holes 401 are evenly arranged in a circular array on the outer circumferential surface of the high-temperature material pipe 4. It should be noted that the first through-holes 401 are grouped into four. Then, symmetrical second through-holes 501 are opened from the outer circumferential surface to the inner part of the oil pumping pipe 5, and the third connecting pipe 28 is fixedly installed on the outer side of the second through-hole 501. One end of the outer side of the third connecting pipe 28 passes through the adjacent first through-hole 401 and is located on the outer side of the high-temperature material pipe 4.

[0030] Then, a support ring 12 is provided on the outside of the high-temperature material pipe 4 and on the outside of the first through-hole 401. Four third through-holes 13 are evenly arranged in an annular array from the circumference of the support ring 12 to the inner portion. Two of the third through-holes 13 are fixedly installed with hydrophobic oil films 14, and the other two third through-holes 13 are fixedly installed with high-temperature fluid isolation nets 15. It should be noted that the hydrophobic oil films 14 and the third connecting pipe 28 are aligned for subsequent oil pumping operations, such as Figure 6 shown.

[0031] When the other two high-temperature fluid partitions 15 are in a straight line, a first connecting pipe 16 is fixedly installed on the inner circumferential surface of the support ring 12. The first connecting pipe 16 is fixedly connected to the high-temperature material pipe 4 and communicates with the first through-hole 401 for transporting high-temperature fluid.

[0032] Then, a second connecting pipe 17 is fixedly installed on the inner side of the support ring 12 and on the outer side of the hydrophobic oil film 14, and a rectangular frame 18 is fixedly installed on one end of the inner side of the second connecting pipe 17. A fourth through-hole 19 is provided on the top of the rectangular frame 18, and a first motor 20 is fixedly installed on the top of the rectangular frame 18. A driving gear 21 is installed on the output shaft of the first motor 20, and a first annular groove 22 is provided on the inner circumferential surface of the rectangular frame 18. A gear ring 23 is rotatably installed inside the first annular groove 22, and the gear ring 23 and the driving gear 21 are meshed with each other, and the left side of the gear ring 23 is in a through state to the center of the right side, and is through the second connecting pipe 17.

[0033] Then, six beveled slots 24 are provided on the inner side of the gear ring 23, and the six beveled slots 24 are interconnected. Figure 7 As shown, six inclined plates 25 are evenly fixedly installed in a circular array at one end of the rectangular frame 18 away from the second connecting pipe 17, and an inclined groove 26 is opened from the left side to the right side of the inclined plate 25, and six sealing plates 29 are arranged between the inclined plate 25 and the gear ring 23. A slider 30 is fixedly installed at a right angle position of the straight line of the outer side of the sealing plate 29, and the slider 30 is slidably installed in the inside of the inclined side groove 24, and a slide rod 31 is fixedly installed in the center of the straight edge of the inner side, and the slide rod 31 is slidably installed in the inside of the inclined groove 26.

[0034] It should be noted that a connecting ring 27 is fixedly mounted on the inner sides of the six inclined plates 25 .

[0035] During use, when the first motor 20 is started, its output shaft drives the driving gear 21 to rotate. Since the driving gear 21 and the gear ring 23 are engaged with each other, the gear ring 23 will also rotate accordingly. As the gear ring 23 rotates, the bevel groove 24 opened thereon will drive the slider 30 to slide inside the bevel groove 24. At the same time, the slider 30 drives the sealing plate 29 to move. Since the inner side surface of the sealing plate 29 is slidably connected to the bevel groove 26 on the bevel plate 25 through the slide rod 31, the sealing plate 29 will tilt or translate along the path of the bevel groove 26 during the movement, thereby changing the relative position between the sealing plate 29 and the gear ring 23, thereby realizing the sealing or opening function.

[0036] As the gear ring 23 continues to rotate, the six sealing plates 29 will open and close in sequence, thereby controlling the flow of fluid inside the gear ring 23. When fluid needs to pass through, the corresponding sealing plate 29 will open, and the fluid can enter the gear ring 23 through the second connecting tube 17 and flow out through the opened sealing plate 29. When the fluid needs to be blocked, the corresponding sealing plate 29 will close, blocking the fluid passage.

[0037] In addition, since the inner sides of the six inclined plates 25 are fixedly mounted with a connecting ring 27, when the gear ring 23 rotates, the connecting ring 27 will remain stable and motionless, providing a stable support structure for the inclined plates 25 and the sealing plates 29. This design not only improves the stability of the device, but also makes the movement of the sealing plates 29 more stable and reliable.

[0038] Finally, on the outside of the high-temperature material pipe 4 and at the upper and lower ends of the support ring 12, a telescopic pump 7 is evenly fixedly installed in an annular array. A first arc plate 8 is fixedly installed on the telescopic rod of the telescopic pump 7, and the outer side of the first arc plate 8 is a concave structure. In addition, a through first slide groove 9 is opened at the upper and lower ends of the outer side of the first arc plate 8. An arc slide rod 11 is slidably installed inside the first slide groove 9, and a second arc plate 10 is fixedly installed inside the arc slide rod 11. Figure 8 shown.

[0039] During use, the telescopic pump 7 will be started as needed to drive the first curved plate 8 closer to the inner wall of the pipe well, so that the gathering between the first curved plates 8 can be increased. At this time, the second curved plate 10 will slide to make up for the distance between the two adjacent first curved plates 8, thereby forming an annular structure to support the inside of the pipe well.

[0040] Then, during operation, it can be adjusted according to the diameter of the pipe well. It should be noted that the two adjacent first curved plates 8 each occupy half the length of the second curved plate 10. This ensures that when the first curved plates 8 expand outward, the two ends of the second curved plates 10 can be evenly positioned inside the adjacent first curved plates 8 to avoid slipping.

[0041] Working Principle: Step 1: Assemble the high-temperature material pipe 4 and the pumping pipe 5 together, secure the support sleeve 6 to the outside of the high-temperature material pipe 4 to form the basic wellbore structure, allow the third connecting pipe 28 to pass through the second through-hole 501 and be fixedly connected to the pumping pipe 5, and allow the third connecting pipe 28 to pass through the first through-hole 401; Step 2: Install the hydrophobic oil film 14 and the high-temperature fluid isolation net 15 in the third through-hole 13 of the support ring 12, check the linkage flexibility of the sealing plate 29, gear ring 23 and driving gear 21 in the rectangular frame 18, and adjust the opening and closing of the sealing plate 29 by the first motor 20 to determine the oil pumping speed; Step 3: Fix the telescopic pump 7 to the outside of the high-temperature material pipe 4, connect the first curved plate 8 and the second curved plate 10, adjust the sliding performance of the curved slide rod 11 in the first slide groove 9, and ensure that the outer diameter of the wellbore can be adjusted by the telescopic pump 7 when encountering obstructions. Install the triangular pipe 1 on the top of the high-temperature material pipe 4, connect the connecting pipe 2 at the upper end of the pumping pipe 5, and ensure that the anti-leakage clamp 3 is sealed reliably to prevent seawater backflow during offshore operations; Step 4: The triangular pipe 1 injects high-temperature fluid into the high-temperature material pipe 4, passes through the second connecting pipe 17, and then passes through the high-temperature fluid isolation net 15 to perform high-temperature operation on the heavy oil. At this time, the sealing plate 29 is in a sealed state. When the heavy oil reaches the appropriate temperature, the oil pump is started, and the heated and viscosity-reduced heavy oil is sucked into the wellbore through the oil pumping pipe 5 and transported to the offshore platform through the connecting pipe 2.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for exploiting heavy oil reservoirs, characterized in that: It comprises a high-temperature material pipe (4), an oil pumping pipe (5) is provided inside the high-temperature material pipe (4), and a supporting sleeve (6) is fixedly installed on the outer side of the high-temperature material pipe (4); There is a gap between the high-temperature material pipe (4) and the oil pumping pipe (5), and a support ring (12) is provided on the outside of the high-temperature material pipe (4), and a third through-hole (13) is evenly arranged in an annular array on the circumferential surface of the support ring (12); Two of the third through-holes (13) are fixedly installed with hydrophobic oil films (14), and the other two of the third through-holes (13) are fixedly installed with high-temperature fluid isolation nets (15); A second connecting pipe (17) is fixedly mounted on the inner circumferential surface of two of the third through-holes (13), a rectangular frame (18) is fixedly mounted on the other end of the second connecting pipe (17), a sealing plate (29) is evenly arranged in an annular array on the inner side of the rectangular frame (18), a third connecting pipe (28) is arranged on the inner side of the rectangular frame (18), and the other end of the third connecting pipe (28) passes through the circumferential surface of the high-temperature material pipe (4) and the oil pumping pipe (5) and is fixedly connected.

2. The device for exploiting heavy oil reservoirs according to claim 1, characterized in that: The circumferential surface of the high-temperature material pipe (4) is uniformly provided with first through-holes (401) in an annular array, and four first through-holes (401) are arranged in a group at equal intervals on the circumferential surface of the high-temperature material pipe (4). The circumferential surface of the oil pumping pipe (5) is symmetrically provided with second through-holes (501), and the second through-holes (501) and the adjacent first through-holes (401) are in an aligned state.

3. The device for exploiting heavy oil reservoirs according to claim 2, characterized in that: The interior of the first through-hole (401) and the adjacent third connecting pipe (28) are in sliding connection, the outside of the first through-hole (401) is fixedly mounted with a first connecting pipe (16), the outside of the first connecting pipe (16) is fixedly connected to the support ring (12), and the first connecting pipe (16) and the third through-hole (13) are in communication.

4. The device for exploiting heavy oil reservoirs according to claim 1, characterized in that: A fourth through-hole (19) is provided from the upper end surface of the rectangular frame (18) to the interior thereof. A first motor (20) is fixedly mounted on the upper end surface of the rectangular frame (18), and a driving gear (21) is fixedly mounted on the output shaft of the first motor (20).

5. The device for exploiting heavy oil reservoirs according to claim 4, characterized in that: A first annular groove (22) is provided inside the rectangular frame (18), a gear ring (23) is rotatably mounted inside the first annular groove (22), and an oblique side sliding groove (24) is provided on the inner side surface of the gear ring (23), and the oblique side sliding grooves (24) are six and interconnected.

6. The device for exploiting heavy oil reservoirs according to claim 5, characterized in that: An inclined plate (25) is evenly fixedly installed in a circular array on the inner side of the adjacent end of the rectangular frame (18), and a connecting ring (27) is fixedly installed on the inner side of the inclined plate (25). A second connecting pipe (17) is fixedly installed on the outer side of the connecting ring (27). One end of the outer side of the second connecting pipe (17) is fixedly connected to the support ring (12), and is connected to the adjacent third through-hole (13) and the hydrophobic oil film (14). An inclined groove (26) is provided from the outer side surface to the inner side surface of the inclined plate (25), and a sealing plate (29) is provided between the inclined plate (25) and the gear ring (23).

7. The device for exploiting heavy oil reservoirs according to claim 5, characterized in that: A slider (30) is fixedly installed at a right angle position on the straight edge of the sealing plate (29), and the slider (30) is slidably installed inside the oblique edge slot (24). A slide rod (31) is fixedly installed at the center position on the inner side of the straight edge of the sealing plate (29), and one inner end of the slide rod (31) is slidably installed inside the oblique slot (26).

8. The device for exploiting heavy oil reservoirs according to claim 1, characterized in that: Telescopic pumps (7) are evenly fixedly installed in an annular array on the outer circumferential surface of the high-temperature material pipe (4), and a first arc plate (8) is fixedly installed on the telescopic rod of the telescopic pump (7). The outer side surface of the first arc plate (8) is a U-shaped structure. First sliding grooves (9) are provided at both upper and lower ends of the inner side of the U-shape on the outer side of the first arc plate (8). Arc sliding rods (11) are slidably installed inside the first sliding grooves (9), and a second arc plate (10) is fixedly installed on the inner side of the arc sliding rods (11).

9. The device for exploiting heavy oil reservoirs according to claim 1, characterized in that: A triangular tube (1) is fixedly mounted on the upper end surface of the high-temperature material tube (4), a connecting tube (2) is fixedly mounted on the upper end of the oil pumping tube (5), an anti-leakage clamp (3) is provided on the outer side of the lower end of the triangular tube (1), and the upper end of the connecting tube (2) is located on the outer side of the triangular tube (1).

10. A method for exploiting offshore heavy oil reservoirs, according to the apparatus for exploiting heavy oil reservoirs according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Combine the high-temperature material pipe (4) and the pumping pipe (5), fix the support sleeve (6) on the outside of the high-temperature material pipe to form a basic wellbore structure, allow the third connecting pipe (28) and the second through-hole (501) to pass through and be fixedly connected to the pumping pipe (5), and allow the third connecting pipe (28) to pass through the first through-hole (401); Step 2: Install the hydrophobic oil film (14) and the high-temperature fluid separator (15) in the third through-hole (13) in the support ring (12), check the linkage flexibility of the sealing plate (29), the gear ring (23) and the driving gear (21) in the rectangular frame (18), debug the opening and closing of the sealing plate (29) through the first motor (20), and determine the speed of oil extraction; Step 3: Fix the telescopic pump (7) to the outside of the high-temperature material pipe, connect the first curved plate (8) and the second curved plate (10), adjust the sliding performance of the curved slide rod (11) in the first slide groove (9), ensure that the outer diameter of the wellbore can be adjusted by the telescopic pump when encountering resistance, install the triangular pipe (1) on the top of the high-temperature material pipe, connect the connecting pipe (2) at the upper end of the pumping pipe, ensure that the anti-leakage clamp (3) is sealed reliably to avoid seawater backflow during offshore operations; Step 4: The triangular pipe (1) injects high-temperature fluid into the high-temperature material pipe, passes through the second connecting pipe (17), and then passes through the high-temperature fluid isolation net (15) to perform high-temperature operation on the heavy oil. At this time, the sealing plate (29) is in a sealed state. When the heavy oil reaches a suitable temperature, the oil pump is started, and the heated and viscosity-reduced heavy oil is sucked into the wellbore through the oil pumping pipe (5), and transported to the offshore platform through the connecting pipe (2).

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