Telescopic offshore oil control oil pipe

Abstract

The utility model provides a telescopic offshore oil control pipe which comprises a first pipeline, a second pipeline, butt joint ends and an outer protection part, the second pipeline is connected with the inner side of the first pipeline in a sliding mode and correspondingly sealed, the butt joint ends are located at the lower end of the first pipeline and the upper end of the second pipeline respectively, and the outer protection part is connected with the butt joint ends. The butt joint end is provided with a connecting pipe, the outer protection part is located outside the first pipeline and the second pipeline, and the outer protection part is fixedly connected with the lower end of the first pipeline and the upper end of the second pipeline. According to the telescopic offshore oil control oil pipe, the telescopic function is achieved through sliding connection and sealing treatment of the first pipeline and the second pipeline in cooperation with the telescopic adjusting part, and the butt joint end is matched with the connecting pipe so that the telescopic offshore oil control oil pipe can be conveniently connected with other equipment; the outer protection part can protect the internal pipeline and adapt to the telescopic characteristic; the flow control part achieves flow control and pressure buffering, and the adaptability of the pipeline under different oil conveying working conditions is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil control tubing technology, and in particular to a retractable marine oil control tubing. Background Technology

[0002] In offshore oil extraction operations, control tubing is mainly used to transmit hydraulic power, chemical agents, or control signals to enable wellhead equipment operation and oil and gas transmission.

[0003] Traditional tubing is mostly designed to a fixed length, and its specifications need to be customized according to different operating scenarios (such as platform elevation and well spacing), resulting in poor adaptability and indirectly increasing costs.

[0004] Therefore, it is necessary to provide a retractable marine oil control tubing to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a telescopic marine oil control tubing, which solves the problem that traditional tubing is mostly designed to a fixed length, resulting in poor adaptability and indirectly increasing costs.

[0006] To solve the above-mentioned technical problems, this utility model provides a retractable marine oil control tubing, comprising: a first pipe, a second pipe, a connecting end, and an outer protective part. The second pipe is slidably connected to the inner side of the first pipe and is correspondingly sealed. The connecting end is located at the lower end of the first pipe and the upper end of the second pipe, respectively. A connecting pipe is provided on the connecting end. The outer protective part is located outside the first pipe and the second pipe and is fixedly connected to the lower end of the first pipe and the upper end of the second pipe, respectively. A telescopic adjustment part is provided on the outer side of the first pipe and the second pipe, and the telescopic adjustment part is located inside the outer protective part. A flow control part is provided at the lower end of the first pipe.

[0007] Preferably, the mating end includes a first mating connector, a second mating connector, and a mating seat. The first mating connector and the second mating connector correspond to the lower end of the first pipe and the upper end of the second pipe, respectively. The mating seat is fixedly connected to the lower part of the first pipe. The first mating head is provided with a first fixing member and is fixedly connected to the mating seat. A sealing ring is provided at the end of the first mating connector near the lower part of the first pipe. The first mating connector is fixedly connected to the connecting pipe.

[0008] Preferably, the outer protective part includes a fixed sleeve and an elastic sleeve. The two ends of the elastic sleeve are respectively provided with a first annular plate and a second annular plate. The elastic sleeve is fixedly connected to the upper end of the fixed sleeve through the first annular plate. The lower ends of the second annular plate and the fixed sleeve are provided with a second fixing member. The second fixing member is used to fixally connect the fixed sleeve and the first mating joint. The second fixing member is used to fixally connect the second annular plate and the second mating joint. The lower part of the fixed sleeve has an installation port corresponding to the mating seat.

[0009] Preferably, the telescopic adjustment part includes a first positioning block, a second positioning block, and a threaded adjustment rod. The first positioning block is fixedly connected to the outer wall of the first pipe, the second positioning block is fixedly connected to the outer wall of the second pipe, the threaded adjustment rod is sleeved with the first positioning block and the second positioning block, and a rotating wheel is fixedly connected to the upper end of the threaded adjustment rod.

[0010] Preferably, the flow control unit includes an extension tube, which is mounted on a fixed sleeve. The inner wall of the extension tube has evenly distributed sliding grooves. An outer cover plate is provided at the outer end of the extension tube. A blocking block is slidably connected in the sliding groove. A lifting push rod is provided on the outer cover plate, and the end of the lifting push rod is fixedly connected to the blocking block.

[0011] Preferably, a pressure sensor is provided on the side of the outer cover plate facing the sealing block, and a spring is fixedly connected to the sealing block, with the other end of the spring connected to the pressure sensor.

[0012] Compared with related technologies, the telescopic marine oil control tubing provided by this utility model has the following advantages:

[0013] This utility model provides a telescopic marine oil control pipe. The telescopic function is achieved through the sliding connection and sealing treatment of the first and second pipes, combined with the telescopic adjustment part. The docking end cooperates with the connecting pipe for easy connection with other equipment. The outer protective part can protect the internal pipe and adapt to the telescopic characteristics. The flow control part realizes the flow control and pressure buffering, improving the adaptability of the pipeline under different oil transportation working conditions. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of a retractable marine oil control tubing provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the telescopic adjustment part in this utility model;

[0016] Figure 3 This is a schematic diagram of the flow control unit in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the first joint at the lower end of the first pipe in this utility model.

[0018] Numbered in the diagram: 1. First pipe, 2. Second pipe, 3. Connecting pipe, 4. Butt joint, 41. First joint, 42. Second joint, 43. Butt seat, 44. First fastener, 45. Sealing ring, 5. Outer protective part, 51. Fixed sleeve, 52. Elastic sleeve, 53. First annular plate, 54. Second annular plate, 55. Second fastener, 56. Mounting port, 6. Telescopic adjustment part, 61. First positioning block, 62. Second positioning block, 63. Threaded adjusting rod, 64. Rotary wheel, 7. Flow control part, 71. Extension pipe, 72. Sliding groove, 73. Outer cover plate, 74. Sealing block, 75. Lifting push rod, 76. Pressure sensor, 77. Spring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a retractable marine oil control tubing provided by this utility model;

[0021] Figure 2 This is a schematic diagram of the telescopic adjustment part in this utility model;

[0022] Figure 3 This is a schematic diagram of the flow control unit in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the first joint at the lower end of the first pipe in this utility model.

[0024] A retractable marine oil control tubing includes: a first pipe 1, a second pipe 2, a connecting end 4, and an outer protective part 5. The second pipe 2 is slidably connected to the inner side of the first pipe 1 and is correspondingly sealed. The connecting end 4 is located at the lower end of the first pipe 1 and the upper end of the second pipe 2, respectively. A connecting pipe 3 is provided on the connecting end 4. The outer protective part 5 is located outside the first pipe 1 and the second pipe 2, and is fixedly connected to the lower end of the first pipe 1 and the upper end of the second pipe 2, respectively. A telescopic adjustment part 6 is provided on the outer side of the first pipe 1 and the second pipe 2, and the telescopic adjustment part 6 is located inside the outer protective part 5. A flow control part 7 is provided at the lower end of the first pipe 1.

[0025] In use, the first pipe 1 and the second pipe 2 are pushed to slide relative to each other by the telescopic adjustment part 6 to adjust the length of the oil pipe; when it is necessary to adjust the flow rate of the oil, the flow control part 7 is used to change the flow cross-sectional area and monitor the pressure change at the same time. When the pressure fluctuates, adaptive adjustments are made to ensure the stable operation of the oil pipe; the outer protective part 5 provides protection and can adapt to the telescopic characteristics.

[0026] The docking end 4 includes a first docking connector 41, a second docking connector 42, and a docking seat 43. The first docking connector 41 and the second docking connector 42 correspond to the lower end of the first pipe 1 and the upper end of the second pipe 2, respectively. The docking seat 43 is fixedly connected to the lower part of the first pipe 1. The first docking connector 41 is provided with a first fixing member 44 and is fixedly connected to the docking seat 43. A sealing ring 45 is provided at the end of the first docking connector 41 near the lower part of the first pipe 1. The first docking connector 41 is fixedly connected to the connecting pipe 3.

[0027] The mating end 4 ensures the reliability of the connection between the first pipe 1 and the second pipe 2 during the expansion and contraction process, and avoids loosening or falling off at the connection between the upper and lower ends. The sealing ring 45 enhances the sealing performance of the connection between the first mating joint 41 and the first pipe 1, prevents leakage, and ensures stable transmission of oil through the first pipe 1, the second pipe 2 and the connecting pipe 3.

[0028] The outer protective part 5 includes a fixed sleeve 51 and an elastic sleeve 52. The two ends of the elastic sleeve 52 are respectively provided with a first annular plate 53 and a second annular plate 54. The elastic sleeve 52 is fixedly connected to the upper end of the fixed sleeve 51 through the first annular plate 53. The lower end of the second annular plate 54 and the fixed sleeve 51 is provided with a second fixing member 55. The second fixing member 55 is used to fixally connect the fixed sleeve 51 and the first mating joint 41. The second fixing member 55 is used to fixally connect the second annular plate 54 and the second mating joint 42. The lower part of the fixed sleeve 51 is provided with an installation port 56 corresponding to the mating seat 43.

[0029] The elastic sleeve 52 has a certain degree of elasticity and extensibility, and can deform according to the length expansion and contraction of the second pipe 2 within the first pipe 1. While protecting the internal pipe, it does not affect the expansion and contraction function of the oil pipe. The second annular plate 54 and the second fixing member 55 firmly connect the two ends of the outer protective part 5 to the docking end 4, enhancing the overall stability.

[0030] The telescopic adjustment part 6 includes a first positioning block 61, a second positioning block 62, and a threaded adjustment rod 63. The first positioning block 61 is fixedly connected to the outer wall of the first pipe 1, the second positioning block 62 is fixedly connected to the outer wall of the second pipe 2, the threaded adjustment rod 63 is sleeved with the first positioning block 61 and the second positioning block 62, and a rotating wheel 64 is fixedly connected to the upper end of the threaded adjustment rod 63.

[0031] By rotating the threaded adjusting rod 63, the first positioning block 61 and the second positioning block 62 can be moved relative to each other using the threaded transmission principle, thereby driving the first pipe 1 and the second pipe 2 to extend and retract, thus realizing the extension and retraction control of the oil pipe length.

[0032] The flow control unit 7 includes an extension tube 71, which is mounted on a fixed sleeve 51. The inner wall of the extension tube 71 has evenly distributed sliding grooves 72. The outer end of the extension tube 71 is provided with an outer cover plate 73. A blocking block 74 is slidably connected in the sliding groove 72. A lifting push rod 75 is provided on the outer cover plate 73. The end of the lifting push rod 75 is fixedly connected to the blocking block 74.

[0033] The lifting push rod 75 can drive the sealing block 74 to move up and down in the sliding groove 72, thereby changing the flow cross-sectional area of ​​the oil below the extension pipe 71, realizing the adjustment and control of the flow rate in the oil pipe, and meeting the flow requirements under different operating conditions.

[0034] A pressure sensor 76 is provided on the surface of the outer cover plate 73 facing the sealing block 74, and a spring 77 is fixedly connected to the sealing block 74. The other end of the spring 77 is connected to the pressure sensor 76.

[0035] The pressure sensor 76 can monitor the pressure change in the extension tube 71 by the deformation of the spring 77. When the pressure changes, the spring 77 works with the lifting push rod 75 to achieve dynamic adjustment of pressure and flow rate, while also playing a buffering role to ensure the stability and reliability of flow control.

[0036] The working principle of the retractable marine oil control tubing provided by this utility model is as follows:

[0037] In use, the first pipe 1 and the second pipe 2 are pushed to slide relative to each other by the telescopic adjustment part 6 to adjust the length of the oil pipe; when it is necessary to adjust the flow rate of the oil, the flow control part 7 is used to change the flow cross-sectional area and monitor the pressure change at the same time. When the pressure fluctuates, adaptive adjustments are made to ensure the stable operation of the oil pipe; the outer protective part 5 provides protection and can adapt to the telescopic characteristics.

[0038] Compared with related technologies, the telescopic marine oil control tubing provided by this utility model has the following advantages:

[0039] The sliding connection and sealing treatment between the first pipe 1 and the second pipe 2, together with the expansion adjustment part 6, realize the expansion function. The docking end 4 cooperates with the connecting pipe 3 to facilitate connection with other equipment. The outer protection part 5 can protect the internal pipe and adapt to the expansion characteristics. The flow control part 7 realizes the flow control and pressure buffering, and improves the adaptability of the pipeline under different oil transportation working conditions.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A retractable marine oil control tubing, characterized in that, include: The system comprises a first pipe, a second pipe, a connecting end, and an outer protective part. The second pipe is slidably connected to the inner side of the first pipe and is correspondingly sealed. The connecting end is located at the lower end of the first pipe and the upper end of the second pipe, respectively. A connecting pipe is provided on the connecting end. The outer protective part is located outside the first pipe and the second pipe and is fixedly connected to the lower end of the first pipe and the upper end of the second pipe, respectively. An extension adjustment part is provided on the outer side of the first pipe and the second pipe, and the extension adjustment part is located inside the outer protective part. A flow control part is provided at the lower end of the first pipe.

2. The retractable marine oil control tubing according to claim 1, characterized in that, The docking end includes a first connector, a second connector, and a docking seat. The first connector and the second connector correspond to the lower end of the first pipe and the upper end of the second pipe, respectively. The docking seat is fixedly connected to the lower part of the first pipe. The first docking head is provided with a first fixing member and is fixedly connected to the docking seat. A sealing ring is provided at the end of the first connector near the lower part of the first pipe. The first connector is fixedly connected to the connecting pipe.

3. A retractable marine oil control tubing according to claim 2, characterized in that, The outer protective part includes a fixed sleeve and an elastic sleeve. The two ends of the elastic sleeve are respectively provided with a first annular plate and a second annular plate. The elastic sleeve is fixedly connected to the upper end of the fixed sleeve through the first annular plate. The lower ends of the second annular plate and the fixed sleeve are provided with a second fixing member. The second fixing member is used to fixally connect the fixed sleeve and the first mating joint. The second fixing member is used to fixally connect the second annular plate and the second mating joint. The lower part of the fixed sleeve has an installation port corresponding to the mating seat.

4. A retractable marine oil control tubing according to claim 3, characterized in that, The telescopic adjustment part includes a first positioning block, a second positioning block, and a threaded adjustment rod. The first positioning block is fixedly connected to the outer wall of the first pipe, the second positioning block is fixedly connected to the outer wall of the second pipe, the threaded adjustment rod is sleeved with the first positioning block and the second positioning block, and a rotating wheel is fixedly connected to the upper end of the threaded adjustment rod.

5. A retractable marine oil control tubing according to claim 3, characterized in that, The flow control unit includes an extension tube, which is mounted on a fixed sleeve. The inner wall of the extension tube has evenly distributed sliding grooves. An outer cover plate is provided at the outer end of the extension tube. A blocking block is slidably connected in the sliding groove. A lifting push rod is provided on the outer cover plate, and the end of the lifting push rod is fixedly connected to the blocking block.

6. A retractable marine oil control tubing according to claim 5, characterized in that, A pressure sensor is provided on the side of the outer cover plate facing the sealing block, and a spring is fixedly connected to the sealing block, with the other end of the spring connected to the pressure sensor.

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