A mounting frame and use method for facilitating maintenance of a wellhead Christmas tree

Abstract

The present invention provides a mounting frame and a use method for facilitating the maintenance of a wellhead Christmas tree. The mounting frame comprises a base, on which an adjustment component, a mounting component and a pipeline guide component are arranged. The adjustment component is used to adjust the horizontality of the Christmas tree. The adjustment component comprises an adjustment bolt, an adjustment plate and a level. The mounting component is used to install the Christmas tree pipeline. The mounting component comprises a support plate, a support arm and an electric telescopic rod. The pipeline guide component is used for supporting when the Christmas tree pipeline is erected. The pipeline guide component comprises a hydraulic telescopic arm, a guide wheel and a linear motor. The problem that the Christmas tree at the wellhead lacks an effective support structure in the past and is not conducive to the stable erection of the Christmas tree is solved. The present invention has a reasonable structure, is conducive to the erection and installation of various pipelines, and is convenient for the later maintenance of the pipelines.

Description

Technical Field

[0001] The invention discloses a mounting frame and a use method for facilitating the maintenance of a wellhead Christmas tree, and relates to the technical field of petroleum exploitation. Background Art

[0002] The role of oil in the national economy Oil is an important energy source. Compared with coal, it has the advantages of high energy density (the heat of combustion of oil of the same weight is 50% higher than that of standard coal), convenient transportation and storage, and less pollution to the atmosphere after combustion. Fuel oil extracted from oil is the main fuel for transportation vehicles, power plant boilers, metallurgical industry and various kilns in the building materials industry. Liquefied gas and pipeline gas made from oil are high-quality fuels for urban residents. Aircraft, tanks, ships, rockets and other spacecraft also consume a lot of oil fuel. Therefore, many countries have listed oil as a strategic material.

[0003] The Christmas tree is a component located at the opening to the top of the oil well, including valves for measurement and maintenance, safety systems and a series of monitoring equipment. The Christmas tree connects the production pipeline and the oil flow pipe from the well, and serves as an important barrier to isolate the top of the oil well from the external environment. It includes many valves that can be used to regulate or prevent the produced crude oil vapor, natural gas and liquid from gushing out of the well. The Christmas tree is connected to the production manifold system through a submarine pipeline.

[0004] There are many pipelines and valve components on the Christmas tree, the structure is relatively messy, and there is a lack of effective supporting structure, which can easily cause unstable support and cause the collapse of the Christmas tree structure, which can easily lead to the following problems: 1. The Christmas tree pipeline cannot be erected too high or too complicated; 2. In addition, the installation of the Christmas tree pipeline is extremely inconvenient. Without the use of a crane, it is completely impossible to connect the pipelines one by one manually, and even with the assistance of a crane, the process of hanging and placing the pipeline is prone to a greater risk of falling, and the pipelines are prone to mutual squeezing and scratching. Therefore, the installation efficiency is not high and the cost is high; 3. In the later stage, the Christmas tree pipeline is not conducive to maintenance by workers due to its own height problem; therefore, there is an urgent need for a mounting frame and a method of use that are convenient for wellhead Christmas tree maintenance to solve the above problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a mounting frame and a method of use that are convenient for the maintenance of the wellhead oil production tree, so as to solve the problems raised in the above-mentioned background technology. The present invention has a reasonable structure, is conducive to the installation of various pipelines, and facilitates the later maintenance of the pipelines.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions: a mounting frame for facilitating the maintenance of a wellhead Christmas tree, comprising a base, on which an adjustment component, a mounting component, and a pipeline guide component are arranged;

[0007] The adjustment assembly is used to adjust the horizontality of the Christmas tree, and the adjustment assembly includes an adjustment bolt, an adjustment plate and a level meter, wherein the adjustment plate is arranged above the base, the adjustment bolt is arranged between the adjustment plate and the base, and the level meter is arranged inside the adjustment plate;

[0008] The mounting assembly is used to install the Christmas tree pipeline, and the mounting assembly includes a support plate, a support arm and an electric telescopic rod. The support plate is arranged above the adjustment plate, and a plurality of electric telescopic rods are arranged on the adjustment plate. The support arm is arranged on the power shaft of the electric telescopic rod, and a mounting plate is arranged on the top of the support arm.

[0009] The pipeline guide assembly is used for supporting when the pipeline of the oil tree is installed. The pipeline guide assembly includes a hydraulic telescopic arm, a guide wheel and a linear motor. The linear motor is arranged on a support plate. One end of the hydraulic telescopic arm is connected to the mover of the linear motor, and the guide wheel is rotatably arranged on the other end of the hydraulic telescopic arm.

[0010] Furthermore, a threaded hole is provided on the adjustment plate, and the threaded hole matches the adjustment bolt. A bearing is sleeved on the end of the adjustment bolt, and the bearing is arranged inside the base.

[0011] Furthermore, a plurality of the electric telescopic rods are connected to an external hydraulic source through parallel hydraulic pipelines, and a plurality of mounting holes are provided on the mounting plate.

[0012] Furthermore, a connecting slider is provided at the bottom of the hydraulic telescopic arm, a guide groove is provided on the supporting plate, and the guide groove matches the connecting slider, and the hydraulic telescopic arm is connected to the mover of the linear motor through the connecting slider.

[0013] Furthermore, the wheel rim cross-section of the guide wheel is a concave arc structure, a wheel seat is arranged on the guide wheel, a turning platform is arranged at the bottom of the wheel seat, and the wheel seat is rotatably connected to the top of the hydraulic telescopic arm through the turning platform.

[0014] Furthermore, it also includes a bench assembly, which is used for manually maintaining the oil production tree pipeline. The bench assembly includes a fixed block, a guide rail, a support rod, a hollow tube and a bench. The fixed block is arranged on the adjustment plate, the guide rail is opened on the upper surface of the fixed block, the support rod is arranged on the inner side of the guide rail, the hollow tube is penetrated and sleeved on the support rod, a piston is arranged on the top of the support rod, a tension spring is arranged between the piston and the inner wall of the hollow tube, the two ends of the tension spring are respectively connected to the piston and the inner wall of the hollow tube, an adjusting ruler is arranged on the support rod, and the bench is arranged on the top of the hollow tube.

[0015] Further, the piston is slidably arranged in the hollow tube, the adjusting ruler passes through the lower end of the hollow tube, a plurality of slots are evenly spaced on the vertical side of the adjusting ruler, a locking pin is arranged through the hollow tube, and the locking pin matches the slot, a bayonet is arranged through the bottom of the support rod, a plurality of positioning slots are arranged through the bottom of the guide rail, and the positioning slots match the bayonet.

[0016] Furthermore, the guide rail is provided with two sections, one section of the guide rail is a rectangular frame structure, and the other section of the guide rail is an X-shaped structure, the guide rail of the rectangular frame structure is arranged on the periphery of the guide rail of the X-shaped structure, and the guide rail of the rectangular frame structure is arranged on the guide rail of the X-shaped structure and is interconnected.

[0017] Furthermore, the support arm is a hollow structure, and the bottom of the support arm is fixedly connected to the support plate.

[0018] Furthermore, a method for using a mounting frame for facilitating maintenance of a wellhead Christmas tree of the present invention comprises the following steps:

[0019] Step 1: Place the base in the designated position and rotate the adjustment bolt on the adjustment plate until the level indicator shows level.

[0020] Step 2: The Christmas tree pipeline is placed on the guide wheel, the linear motor is powered on, and the mover of the linear motor drives the hydraulic telescopic arm to move along the guide groove until the pipeline reaches a suitable position, and the linear motor is powered off and stops;

[0021] Step 2-1, the hydraulic source is connected to the hydraulic telescopic arm, and the hydraulic telescopic arm is extended and retracted to a height where the pipeline is located above the mounting plate, and the hydraulic telescopic arm stops;

[0022] Step 2-2: Rotate the guide wheel to adjust the installation angle of the pipeline;

[0023] Step 2-3: After the installation angle of the pipeline is adjusted, the pipeline is fixed by a hoop, and the hoop is installed on the mounting plate;

[0024] Step 3: Then rotate the adjustment bolt on the adjustment plate again until the level indicator shows level;

[0025] Step 4: When maintaining the Christmas tree pipeline, first pull the bayonet upwards to separate the bayonet from the positioning groove;

[0026] Step 4-1, according to the position of the Christmas tree pipeline to be maintained, move the support rod on the guide rail;

[0027] Step 4-2: After the support rod moves to the specified position, lower the latch pin, and the lower end of the latch pin is re-engaged in the positioning groove under the action of gravity;

[0028] Step 4-3: The maintenance personnel sits on the bench, pulls out the locking pin, and presses the bench with his buttocks;

[0029] Step 4-4, the seat is pressed downwards, the hollow tube is driven downwards, the downward movement of the hollow tube drives the tension spring to stretch, the seat is pressed down to the specified sitting height, the locking pin is reinserted, the locking pin is inserted into the slot on the adjustment tooth, the support rod is locked relative to the hollow tube, and the seat is locked;

[0030] Step 5: After the maintenance of the Christmas tree pipeline is completed, the locking pin is pulled out again, and the hollow tube moves upward and resets under the tension of the tension spring, and the bench resets;

[0031] Step 6: Then rotate the adjustment bolt on the adjustment plate again until the level indicator shows level;

[0032] Step 7: When disassembling the Christmas tree pipeline, separate the hoop sleeve on the pipeline from the mounting plate, and carefully place the pipeline on the guide wheel;

[0033] Step 7-1, the linear motor is powered on again, and the mover of the linear motor drives the hydraulic telescopic arm to move along the guide groove until the pipeline position is completely offset from the mounting plate, and the linear motor is powered off and stops;

[0034] Step 7-2: The hydraulic source is connected to the hydraulic telescopic arm, and the hydraulic telescopic arm contracts, driving the pipeline to descend. When the pipeline reaches the lowest end, the hydraulic telescopic arm stops, and the pipeline is moved away through an external transfer device.

[0035] Beneficial effects of the present invention:

[0036] 1. The adjustment assembly of the present invention is used to adjust the horizontality of the Christmas tree. With the addition of the adjustment assembly, the mounting plate is always horizontal, and the posture of the Christmas tree can always be maintained in a vertical state;

[0037] 2. The installation assembly of the present invention is used to install the pipeline of the Christmas tree, and the installation assembly is used to support the height of the Christmas tree and to finally install and fix the Christmas tree;

[0038] 3. The pipeline guide assembly of the present invention is used for supporting the installation of the pipeline of the oil tree. The pipeline guide assembly is used for lifting and lowering the pipeline on the oil tree and adjusting the installation angle of the pipeline of the oil tree, thereby eliminating the safety hazards caused by the installation using a crane in the past;

[0039] 4. The linear motor of the present invention drives the hydraulic telescopic arm to adjust the horizontal position, the hydraulic telescopic arm moves up and down to drive the pipeline, and the guide wheel on the hydraulic telescopic arm drives the Christmas tree pipeline to rotate the angle, thus forming a three-dimensional adjustment space from three moving dimensions, and finally delivering the Christmas tree pipeline to the designated installation position;

[0040] 5. The present invention also includes a bench assembly for manual maintenance of the Christmas tree pipeline;

[0041] 6. The present invention is conducive to the installation of various pipelines and convenient for the later maintenance of the pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0043] Figure 1 This is a structural schematic diagram of a mounting frame for facilitating maintenance of a wellhead Christmas tree according to the present invention;

[0044] Figure 2 This is a structural schematic diagram of a mounting frame for facilitating maintenance of a wellhead Christmas tree according to the present invention;

[0045] Figure 3 for Figure 1 Sectional view of the section B-B';

[0046] Figure 4 for Figure 1 A-A' section view;

[0047] Figure 5 for Figure 3 A magnified view of middle;

[0048] Figure 6 for Figure 4 Enlarged view of middle B;

[0049] In the figure: 1 base, 2 adjustment assembly, 21 adjustment bolt, 211 bearing, 22 adjustment plate, 23 spirit level, 3 mounting assembly, 31 support tray, 32 support arm, 33 mounting plate, 34 electric telescopic rod, 4 pipeline guide assembly, 41 guide groove, 42 hydraulic telescopic arm, 43 guide wheel, 431 wheel seat, 432 steering table, 44 connecting slider, 45 linear motor, 5 stool assembly, 51 fixing block, 511 guide rail, 512 bayonet, 52 stool, 53 hollow tube, 54 piston, 55 adjustment ruler, 551 locking pin, 56 support rod, 57 tension spring. DETAILED DESCRIPTION

[0050] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0051] See also Figure 1-Figure 6 The present invention provides a technical solution: a mounting frame for facilitating the maintenance of a wellhead Christmas tree, comprising a base 1, on which are arranged an adjustment component 2, a mounting component 3, and a pipeline guide component 4; the problem that the wellhead Christmas tree in the past lacks an effective supporting structure, which is not conducive to the stable installation of the Christmas tree, is solved.

[0052] The adjustment assembly 2 of the present invention is used to adjust the levelness of the Christmas tree. The adjustment assembly 2 includes an adjustment bolt 21, an adjustment plate 22 and a level 23. The adjustment plate 22 is arranged above the base 1, the adjustment bolt 21 is arranged between the adjustment plate 22 and the base 1, and the level 23 is arranged on the inner side of the adjustment plate 22. The addition of the adjustment assembly 2 makes the mounting plate 33 always horizontal, and the posture of the Christmas tree can always be maintained in a vertical state.

[0053] The mounting assembly 3 of the present invention is used for installing the pipeline of the oil production tree. The mounting assembly 3 includes a supporting plate 31, a supporting arm 32 and an electric telescopic rod 34. The supporting plate 31 is arranged above the adjusting plate 22. A plurality of electric telescopic rods 34 are arranged on the adjusting plate 22. The supporting arm 32 is arranged on the power shaft of the electric telescopic rod 34. A mounting plate 33 is arranged on the top of the supporting arm 32. The mounting assembly 3 is used to support the height of the oil production tree and to finally install and fix the oil production tree.

[0054] The pipeline guide assembly 4 of the present invention is used for supporting the installation of the pipeline of the oil tree. The pipeline guide assembly 4 includes a hydraulic telescopic arm 42, a guide wheel 43 and a linear motor 45. The linear motor 45 is arranged on the support plate 31. One end of the hydraulic telescopic arm 42 is connected to the mover of the linear motor 45. The guide wheel 43 is rotatably arranged at the other end of the hydraulic telescopic arm 42. The pipeline guide assembly 4 is used for lifting and lowering the pipeline on the oil tree and adjusting the installation angle of the pipeline of the oil tree, thereby eliminating the safety hazards caused by the use of crane installation in the past.

[0055] The adjusting plate 22 of the present invention is provided with a threaded hole, and the threaded hole matches the adjusting bolt 21. The end of the adjusting bolt 21 is sleeved with a bearing 211, and the bearing 211 is arranged inside the base 1. By rotating the adjusting bolt 21, the horizontal posture of the adjusting plate 22 is adjusted, so that the adjusting plate 22 is finally maintained in a horizontal position.

[0056] The plurality of electric telescopic rods 34 of the present invention are connected to an external hydraulic source through parallel hydraulic pipelines, and the mounting plate 33 is provided with a plurality of mounting holes to ensure that the final supporting positions of the Christmas tree are all on the same horizontal plane.

[0057] A connecting slider 44 is provided at the bottom of the hydraulic telescopic arm 42 of the present invention, a guide groove 41 is provided on the support plate 31, and the guide groove 41 matches the connecting slider 44. The hydraulic telescopic arm 42 is connected to the mover of the linear motor 45 through the connecting slider 44. The linear motor 45 drives the hydraulic telescopic arm 42 to adjust the position horizontally. The hydraulic telescopic arm 42 drives the pipeline to move up and down when it is telescoped. The guide wheel 43 on the hydraulic telescopic arm 42 drives the oil tree pipeline to rotate at an angle. In this way, a three-dimensional adjustment space is formed from three moving dimensions, and finally the oil tree pipeline is delivered to the designated installation position.

[0058] The wheel rim cross-section of the guide wheel 43 of the present invention is a concave arc structure for clamping the circumferential wall of the pipeline. A wheel seat 431 is provided on the guide wheel 43, and a turning platform 432 is provided at the bottom of the wheel seat 431. The wheel seat 431 is rotatably connected to the top of the hydraulic telescopic arm 42 through the turning platform 432, so that the guide wheel 43 has a horizontal turning function.

[0059] The present invention also includes a bench assembly 5, which is used for manually maintaining the oil production tree pipeline. The bench assembly 5 includes a fixed block 51, a guide rail 511, a support rod 56, a hollow tube 53 and a bench 52. The fixed block 51 is arranged on the adjustment plate 22, the guide rail 511 is opened on the upper surface of the fixed block 51, the support rod 56 is arranged on the inner side of the guide rail 511, the hollow tube 53 is penetrated and sleeved on the support rod 56, a piston 54 is arranged on the top of the support rod 56, a tension spring 57 is arranged between the piston 54 and the inner wall of the hollow tube 53, and the two ends of the tension spring 57 are respectively connected to the piston 54 and the inner wall of the hollow tube 53, an adjusting ruler 55 is arranged on the support rod 56, and the bench 52 is arranged on the top of the hollow tube 53. The addition of the bench assembly 5 facilitates the later maintenance of the inside of the oil production tree.

[0060] The piston 54 of the present invention is slidably arranged in the hollow tube 53, the adjusting ruler 55 passes through the lower end of the hollow tube 53, and a plurality of slots are provided at equal intervals on the vertical side of the adjusting ruler 55. A locking pin 551 is provided through the hollow tube 53, and the locking pin 551 matches the slot. A bayonet 512 is provided through the bottom of the support rod 56, and a plurality of positioning grooves are provided through the bottom of the guide rail 511, and the positioning grooves match the bayonet pin 512, which are used for moving the position of the stool 52 in the guide rail 511 and locking the position of the stool 52.

[0061] The guide rail 511 of the present invention is provided with two sections, one section of the guide rail 511 is a rectangular frame structure, and the other section of the guide rail 511 is an X-shaped structure. The guide rail 511 of the rectangular frame structure is arranged on the periphery of the guide rail 511 of the X-shaped structure, and the guide rail 511 of the rectangular frame structure is arranged on the guide rail 511 of the X-shaped structure and is interconnected, providing more working angles, making maintenance personnel more comfortable and labor-saving.

[0062] The support arm 32 of the present invention is a hollow structure, and the bottom of the support arm 32 is fixedly connected to the support plate 31 .

[0063] As an embodiment of the present invention, first, the base 1 is fixedly placed at a designated position, and the adjusting bolt 21 on the adjusting plate 22 is rotated until the level meter 23 shows level, so that the adjusting plate 22 is in a horizontal state, and then the Christmas tree pipeline is placed on the guide wheel 43, and the linear motor 45 is powered on, and the mover of the linear motor 45 drives the hydraulic telescopic arm 42 to move along the guide groove 41 until the pipeline reaches a suitable position, and the linear motor 45 is powered off and stopped;

[0064] Then the hydraulic source is introduced into the hydraulic telescopic arm 42, and the hydraulic telescopic arm 42 is extended and retracted to a height where the pipeline is located above the mounting plate 33, and the hydraulic telescopic arm 42 stops, and the pipeline is driven to adjust the installation angle by rotating the guide wheel 43. After the pipeline adjusts the installation angle, the pipeline is fixed by a hoop, and the hoop is installed on the mounting plate 33;

[0065] Then, the adjusting bolt 21 on the adjusting plate 22 is rotated again until the level meter 23 shows horizontal. When the Christmas tree pipeline is maintained, the card pin 512 is first pulled upward, and the card pin 512 is separated from the positioning groove. According to the position of the Christmas tree pipeline to be maintained, the support rod 56 is moved to the position of the guide rail 511. After the support rod 56 moves to the specified position, the card pin 512 is lowered, and the lower end of the card pin 512 is re-engaged in the positioning groove under the action of gravity. The maintenance personnel sits on the bench 52, pulls out the locking pin 551, and presses the bench 52 with the buttocks. The bench 52 is driven by the downward pressure to move the hollow tube 53 downward. The downward movement of the hollow tube 53 drives the tension spring 57 to stretch, and the bench 52 is pressed down to the specified sitting height, and the locking pin 551 is reinserted. The locking pin 551 is inserted into the card slot on the adjusting tooth, and the support rod 56 is locked relative to the hollow tube 53, and the position of the bench 52 is locked;

[0066] After the maintenance of the Christmas tree pipeline is completed, the locking pin 551 is pulled out again, and the hollow tube 53 is moved upward and reset by the tension of the tension spring 57, and the bench 52 is reset. Then, the adjusting bolt 21 on the adjusting plate 22 is rotated again until the level meter 23 shows level.

[0067] As an embodiment of the present invention: when the pipeline of the oil tree is disassembled, the hoop on the pipeline is separated from the mounting plate 33, and the pipeline is carefully placed on the guide wheel 43; the linear motor 45 is powered on again, and the mover of the linear motor 45 drives the hydraulic telescopic arm 42 to move along the guide groove 41 until the pipeline position is completely offset from the mounting plate 33, and the linear motor 45 is powered off and stopped; the hydraulic source is connected to the hydraulic telescopic arm 42, and the hydraulic telescopic arm 42 contracts, driving the pipeline to descend, until the pipeline reaches the lowest end, the hydraulic telescopic arm 42 stops, and the pipeline is moved away through the external transfer device, completing the disassembly and assembly process of the oil tree.

[0068] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mounting frame for facilitating maintenance of a wellhead Christmas tree, comprising a base (1), characterized in that: The base (1) is provided with an adjustment component (2), a mounting component (3), a pipeline guide component (4), and a bench component (5); The adjusting assembly (2) is used to adjust the horizontality of the Christmas tree, and the adjusting assembly (2) comprises an adjusting bolt (21), an adjusting plate (22) and a level gauge (23), wherein the adjusting plate (22) is arranged above the base (1), the adjusting bolt (21) is arranged between the adjusting plate (22) and the base (1), and the level gauge (23) is arranged on the inner side of the adjusting plate (22); The mounting assembly (3) is used to install a Christmas tree pipeline, and the mounting assembly (3) comprises a support plate (31), a support arm (32) and an electric telescopic rod (34); the support plate (31) is arranged above the adjustment plate (22); a plurality of electric telescopic rods (34) are arranged on the adjustment plate (22); the support arm (32) is arranged on a power shaft of the electric telescopic rod (34); and a mounting plate (33) is arranged on the top of the support arm (32); The pipeline guide assembly (4) is used for supporting the installation of the pipeline of the oil tree, and the pipeline guide assembly (4) comprises a hydraulic telescopic arm (42), a guide wheel (43) and a linear motor (45), wherein the linear motor (45) is arranged on the support plate (31), one end of the hydraulic telescopic arm (42) is connected to the mover of the linear motor (45), and the guide wheel (43) is rotatably arranged on the other end of the hydraulic telescopic arm (42); The bench assembly (5) is used for manually maintaining a Christmas tree pipeline. The bench assembly (5) comprises a fixed block (51), a guide rail (511), a support rod (56), a hollow tube (53) and a bench (52). The fixed block (51) is arranged on an adjustment plate (22). The guide rail (511) is provided on the upper surface of the fixed block (51). The support rod (56) is arranged on the inner side of the guide rail (511). The hollow tube (53) is sleeved through the support rod (56). A piston (54) is arranged at the top end of the support rod (56). A tension spring (57) is arranged between the piston (54) and the inner wall of the hollow tube (53). Two ends of the tension spring (57) are respectively connected to the piston (54) and the inner wall of the hollow tube (53). An adjustment ruler (55) is arranged on the support rod (56). The bench (52) is arranged at the top end of the hollow tube (53). The piston (54) is slidably arranged in the hollow tube (53); the adjusting ruler (55) passes through the lower end of the hollow tube (53); a plurality of slots are provided at equal intervals on the vertical side surface of the adjusting ruler (55); a locking pin (551) is provided through the hollow tube (53), and the locking pin (551) matches the slot; a locking pin (512) is provided through the bottom of the support rod (56); a plurality of positioning slots are provided through the bottom of the guide rail (511), and the positioning slots match the positioning pin (512); The guide rail (511) is provided with two sections, one section of the guide rail (511) is a rectangular frame structure, and the other section of the guide rail (511) is an X-shaped structure, the guide rail (511) of the rectangular frame structure is arranged outside the guide rail (511) of the X-shaped structure, and the guide rail (511) of the rectangular frame structure is arranged on the guide rail (511) of the X-shaped structure and is interconnected.

2. The mounting frame for facilitating wellhead Christmas tree maintenance according to claim 1, characterized in that: The adjustment plate (22) is provided with a threaded hole, and the threaded hole matches the adjustment bolt (21); a bearing (211) is sleeved on the end of the adjustment bolt (21), and the bearing (211) is arranged inside the base (1).

3. The mounting frame for facilitating wellhead Christmas tree maintenance according to claim 1, characterized in that: A plurality of the electric telescopic rods (34) are connected to an external hydraulic source via parallel hydraulic pipelines, and a plurality of mounting holes are provided on the mounting plate (33).

4. The mounting frame for facilitating wellhead Christmas tree maintenance according to claim 1, characterized in that: A connecting slide block (44) is provided at the bottom of the hydraulic telescopic arm (42), a guide groove (41) is provided on the support plate (31), and the guide groove (41) matches the connecting slide block (44), and the hydraulic telescopic arm (42) is connected to a mover of a linear motor (45) via the connecting slide block (44).

5. The mounting frame for facilitating wellhead Christmas tree maintenance according to claim 1, characterized in that: The wheel rim cross-section of the guide wheel (43) is an inwardly concave arc-shaped structure; a wheel seat (431) is provided on the guide wheel (43); a turning platform (432) is provided at the bottom of the wheel seat (431); and the wheel seat (431) is rotatably connected to the top of the hydraulic telescopic arm (42) via the turning platform (432).

6. The mounting frame for facilitating maintenance of a wellhead Christmas tree according to claim 1, characterized in that: The support arm (32) is a hollow structure, and the bottom of the support arm (32) is fixedly connected to the support plate (31).

7. The method for using a mounting frame for facilitating wellhead Christmas tree maintenance according to claim 1, characterized in that: The steps include: Step 1: The base (1) is fixedly placed at a designated position, and the adjusting bolt (21) on the adjusting plate (22) is rotated until the level gauge (23) indicates a level; Step 2: The Christmas tree pipeline is placed on the guide wheel (43), the linear motor (45) is powered on, and the mover of the linear motor (45) drives the hydraulic telescopic arm (42) to move along the guide groove (41) until the pipeline reaches a suitable position, and the linear motor (45) is powered off and stopped; Step 2-1, a hydraulic source is introduced into the hydraulic telescopic arm (42), the hydraulic telescopic arm (42) is extended to a height where the pipeline is located above the mounting plate (33), and the hydraulic telescopic arm (42) stops; Step 2-2, by rotating the guide wheel (43), the pipeline is driven to adjust the installation angle; Step 2-3, after the installation angle of the pipeline is adjusted, the pipeline is fixed by a hoop, and the hoop is installed on the installation plate (33); Step 3: Then, rotate the adjustment bolt (21) on the adjustment plate (22) again until the level gauge (23) indicates a level; Step 4: When maintaining the Christmas tree pipeline, first pull the bayonet pin (512) upwards to separate the bayonet pin (512) from the positioning groove; Step 4-1, moving the support rod (56) on the guide rail (511) according to the position of the Christmas tree pipeline to be maintained; Step 4-2, after the support rod (56) moves to the designated position, the latch pin (512) is lowered, and the lower end of the latch pin (512) is re-engaged in the positioning groove under the action of gravity; Step 4-3, the maintenance personnel sits on the bench (52), pulls out the locking pin (551), and presses the bench (52) with the buttocks; Step 4-4, the seat (52) is subjected to downward pressure to drive the hollow tube (53) to move downward, the downward movement of the hollow tube (53) drives the tension spring (57) to stretch, the seat (52) is pressed down to the specified sitting height, the locking pin (551) is reinserted, the locking pin (551) is inserted into the slot on the adjustment tooth, the support rod (56) is locked relative to the hollow tube (53), and the position of the seat (52) is locked; Step 5: After the maintenance of the Christmas tree pipeline is completed, the locking pin (551) is pulled out again, and the hollow tube (53) is moved upward and reset due to the tension of the tension spring (57), and the bench (52) is reset; Step 6: Then, rotate the adjustment bolt (21) on the adjustment plate (22) again until the level gauge (23) shows level; Step 7: When disassembling the Christmas tree pipeline, the collar on the pipeline is separated from the mounting plate (33), and the pipeline is carefully placed on the guide wheel (43); Step 7-1, the linear motor (45) is powered on again, and the mover of the linear motor (45) drives the hydraulic telescopic arm (42) to move along the guide groove (41) until the pipeline position is completely offset from the mounting plate (33), and the linear motor (45) is powered off and stopped; Step 7-2: The hydraulic source is introduced into the hydraulic telescopic arm (42), and the hydraulic telescopic arm (42) contracts, driving the pipeline to descend. When the pipeline reaches the lowest end, the hydraulic telescopic arm (42) stops, and the pipeline is moved away through an external transfer device.

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