A well testing drawworks centering device

Abstract

This invention relates to the field of oilfield testing technology, specifically to a well test winch alignment device, comprising: a Christmas tree, with a blowout preventer fixedly connected to its upper end, and upper and lower ends of the blowout preventer respectively connected to a top pulley and a bottom pulley; a well test winch, with an adjustable skew steering drum device connected to its upper end, and steel wires overlapping the adjustable skew steering drum device, the top pulley, and the bottom pulley; the adjustable skew steering drum device includes a skew steering drum, a drum baffle, a skew steering drum shaft, a lateral movable joint, and a lateral adjusting rod. Through the overall structure of the equipment, by adding an angle-adjustable skew steering drum device between the well test winch and the wellhead, steel wires coming from different angles first bypass the skew steering device before entering the winch drum, thereby ensuring that the well test winch can be aligned with the wellhead at multiple angles during construction. Simultaneously, video monitoring and alarm devices are added to ensure the safety of the construction site.

Description

Technical Field

[0001] This invention relates to the field of oilfield testing technology, and more specifically, to a well test winch centering device. Background Technology

[0002] Oil, gas, and water well testing is conducted using a well test truck in conjunction with various downhole instruments, including downhole pressure testing, downhole temperature testing, well inclination logging, bottom hole sampling, sand surface detection, and water well testing. These operations track the production dynamics of oil, gas, and water wells to obtain data on various physical properties of the oil, gas, and water layers and the test well, production capacity, reservoir parameters, well productivity and completion quality, and the connectivity between oil, gas, and water layers. This data helps solve practical production problems and improve oil and gas well production. The well test winch, as the power source for the well test truck, directly impacts the quality of the testing work due to its normal, safe, efficient, and accurate operation.

[0003] In related technical processes, during well testing, the well test winch is typically aligned with the wellhead using the operator's line of sight, the midpoint of the winch drum, and the center of the wellhead as a standard. Only after alignment can the next testing step be carried out. However, in some testing processes, unfavorable objective factors severely affect and hinder normal testing, even preventing testing altogether and impacting on-site production. Firstly, some wells have narrow well site roads or small well site areas, making it difficult to quickly and accurately align the well test winch with the wellhead, affecting testing efficiency. Secondly, during the rainy season, some well site areas have accumulated water or slippery roads, making it impossible to choose a suitable location for aligning the well test winch with the wellhead, thus affecting normal testing. Thirdly, when some well repair operations require testing, the well repair derrick occupies part of the wellhead area, and the instruments and equipment required for well repair operations occupy most of the well site, leaving little space for the well test truck to park. This makes it more difficult or even impossible to align the well test winch with the wellhead, affecting the progress of the well repair operation.

[0004] Currently, the main solutions to the above problems are as follows: First, expanding existing well sites by acquiring land for well sites and roads facilitates testing and related construction work, but this increases production costs and takes a long time. Second, when rain causes water accumulation at the well site, drainage is required, and testing can only proceed normally after the weather improves and the well site and roads are hardened. Third, when well repair operations prevent testing, it is necessary to coordinate with relevant departments to rearrange the placement of instruments and equipment at the well site, sometimes even requiring the removal of the well repair derrick before testing can resume, severely impacting the progress of well repair operations and increasing production costs.

[0005] Therefore, in the field implementation process, existing related technologies have at least the following problems: 1. The rectification and coordination process is complex and the rectification cycle is long, affecting the test construction progress; 2. The rectification and coordination process increases production costs; 3. It delays the test construction progress and affects the dynamic monitoring plan; 4. It delays the well workover operation progress and affects the normal production of the working well. Therefore, we propose a well test winch centering device. Summary of the Invention

[0006] This application provides a well test winch centering device to solve the following existing technical problems: 1. The rectification and coordination process is complex and the rectification cycle is long, affecting the test construction progress; 2. The rectification and coordination process increases production costs; 3. It delays the test construction progress and affects the dynamic monitoring plan; 4. It delays the well workover operation progress and affects the normal production of the working well.

[0007] or,

[0008] To solve, or at least partially solve, the aforementioned technical problems, this application provides a well test winch centering device, comprising:

[0009] The oil well tree has a blowout preventer fixedly connected to its upper end, and the upper and lower ends of the blowout preventer are respectively connected to a top pulley and a bottom pulley.

[0010] The well test winch has an adjustable deflection and steering drum device connected to its upper end, and the adjustable deflection and steering drum device, the top pulley, and the bottom pulley are connected by steel wire.

[0011] The adjustable eccentric steering roller device includes an eccentric steering roller, a roller baffle, an eccentric roller shaft, a lateral movable joint, and a lateral adjusting rod.

[0012] Optionally, the well test winch includes an "H"-shaped fixed base, a horizontal fixed rod, and a video monitoring and early warning device. The video monitoring and early warning device is fixedly connected to the left and right sides of the upper rear side of the "H"-shaped fixed base by support rods. The horizontal fixed rod is fixedly connected to the upper rear side of the "H"-shaped fixed base by bolts, and the front side of the "H"-shaped fixed base has fixing bolt holes.

[0013] Optionally, both ends of the transverse fixing rod are fixedly connected to ground anchor tensioning rings, and a lateral adjustment rod moving groove is opened on the right side of the middle part of the transverse fixing rod. A transverse adjustment hole is opened through the front and rear ends of the lateral adjustment rod moving groove on the transverse fixing rod.

[0014] Optionally, the upper and lower ends of the skew steering roller are fixedly connected to roller baffles, and the middle of the upper and lower ends of the skew steering roller is provided with a skew steering roller shaft. The opposite ends of the skew steering roller shaft are fixedly connected to lateral movable joints, and the lower part of the lateral movable joint on the lower side is connected to a transverse movable joint through a connecting shaft. The lower end of the transverse movable joint is fixedly connected to the upper left side of the transverse fixed rod.

[0015] Optionally, the lateral movable joint on the upper side of the skew steering roller is connected to a lateral adjusting rod via a rotating shaft. The lower part of the lateral adjusting rod has a lateral adjusting groove, and the lower part of the lateral adjusting rod is inserted into the lateral adjusting rod moving groove.

[0016] Optionally, an adjustment hole fixing bolt is inserted through the interior of the lateral adjustment groove, and the front and rear sides of the adjustment hole fixing bolt are inserted into the lateral adjustment hole.

[0017] Optionally, the outer wall of the skew-adjusting roller is arc-shaped, and an anti-slip rotation groove is provided on the outer side of the skew-adjusting roller.

[0018] Optionally, the adjusting roller shaft includes an upper adjusting bushing and a lower adjusting bushing. Positioning rods are fixedly connected to both the upper and lower ends of the adjusting roller shaft, and the positioning rods on the upper and lower sides are respectively inserted into the inner sides of the upper adjusting bushing and the lower adjusting bushing through bearings. Lateral movable joints are fixedly connected to the outer ends of both the upper adjusting bushing and the lower adjusting bushing.

[0019] Optionally, multiple lateral adjustment holes are provided, and the lateral adjustment holes are symmetrically and evenly spaced on the front and rear sidewalls of the lateral adjustment rod moving groove.

[0020] The beneficial effects of this invention are as follows:

[0021] By adding an adjustable tilting and steering drum device between the well test winch and the wellhead through the overall structure of the equipment, steel wires coming from different angles can first bypass the tilting and steering device before entering the winch drum. This ensures that the well test winch can be aligned with the wellhead at multiple angles for construction. At the same time, video monitoring and alarm devices are added to ensure the safety of the construction site.

[0022] During testing, the steel wire changes its lateral and longitudinal extension direction as it passes through the adjustable tilting roller. This allows the well-testing winch to operate normally even when it's not directly aligned with the wellhead, thanks to the wellhead auxiliary device of the well-testing winch testing system. This eliminates the problem of the well-testing winch being unable to align with the wellhead while ensuring site safety. This improves testing efficiency and saves production costs. Attached Figure Description

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

[0024] Figure 1 This is an overall structural diagram of an embodiment of the present invention.

[0025] Figure 2 This is a structural diagram showing the connection between the well testing winch and the adjustable deflection steering drum device in an embodiment of the present invention.

[0026] Figure 3 This is a structural diagram of the eccentric steering roller according to an embodiment of the present invention.

[0027] Figure 4 This is a structural diagram of the alignment roller shaft according to an embodiment of the present invention.

[0028] Figure 5 This is a structural diagram of the lateral adjustment rod according to an embodiment of the present invention.

[0029] The diagram shows the following markings: 1. Christmas tree; 2. Blowout preventer; 3. Top pulley; 4. Bore pulley; 5. Adjustable yaw control roller device; 6. Well test winch; 7. Yaw control roller; 7-1. Anti-slip rotation groove; 8. Roller baffle; 9. Yaw control roller shaft; 9-1. Upper adjusting bushing; 9-2. Lower adjusting bushing; 10. Lateral movable joint; 11. Lateral adjusting rod; 11-1. Lateral adjusting groove; 12. Lateral fixing rod; 13. Lateral adjusting rod moving groove; 14. Lateral adjusting hole; 15. Adjusting hole fixing bolt; 16. Lateral movable joint; 17. "H" type fixed base; 18. Fixing bolt hole; 19. Ground anchor tension ring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] In existing technologies, the main solutions to the problems described in the background technology are as follows: First, expanding the existing well site by acquiring land for well site and road access facilitates testing and related construction work, but this increases production costs and takes a long time. Second, when rain causes water accumulation at the well site, drainage is required, and testing can only proceed normally after the weather improves and the well site and roads are hardened. Third, when well repair operations prevent testing, it is necessary to coordinate with relevant departments to rearrange the placement of instruments and equipment at the well site, sometimes even requiring the removal of the well repair derrick before testing can resume, severely impacting the progress of well repair operations and increasing production costs.

[0035] To address the aforementioned problems, this invention proposes a well test winch centering device to resolve the following existing technical issues: 1. Complex rectification and coordination processes with long rectification cycles, affecting the progress of testing and construction; 2. Increased production costs due to rectification and coordination processes; 3. Delays in testing and construction progress, affecting dynamic monitoring plans; 4. Delays in well workover operations, affecting normal production of the working well.

[0036] like Figures 1 to 5 As shown, this embodiment provides a well test winch centering device, including:

[0037] Oil production tree 1, the upper end of which is fixedly connected to a blowout preventer 2, and the upper and lower ends of the blowout preventer 2 are respectively connected to a top pulley 3 and a bottom pulley 4;

[0038] The well test winch 6 has an adjustable deflection and steering drum device 5 connected to its upper end, and the adjustable deflection and steering drum device 5, the top pulley 3 and the bottom pulley 4 are connected by steel wire.

[0039] The adjustable eccentric steering roller device 5 includes an eccentric steering roller 7, a roller baffle 8, an eccentric steering roller shaft 9, a lateral movable joint 10, and a lateral adjusting rod 11.

[0040] Specifically: the blowout preventer 2 is fixed on the tree trunk 1, the top pulley 3 is installed on the upper end of the blowout preventer 2, and the bottom pulley 4 is installed at the lower end of the blowout preventer 2 where it connects to the tree trunk 1. It can rotate freely, and the height of the bottom pulley 4 varies with the height of the tree trunk 1.

[0041] In this embodiment, as Figure 2 As shown: The well test winch includes an "H"-shaped fixed base 17, a horizontal fixed rod 12, and a video monitoring and early warning device 20. The video monitoring and early warning device 20 is fixedly connected to the left and right sides of the upper rear side of the "H"-shaped fixed base 17 by support rods. The horizontal fixed rod 12 is fixedly connected to the upper rear side of the "H"-shaped fixed base 17 by bolts, and the front side of the "H"-shaped fixed base 17 has a fixing bolt hole 18.

[0042] Specifically: The H-shaped fixing base 17 is H-shaped, and the transverse fixing rod 12 is fixed to one end of the H-shaped fixing base 17, thereby fixing the skew-adjusting roller 7 to the base. The other end of the H-shaped fixing base 17 has four fixing bolt holes 18, which cooperate with the corresponding reserved fixing bolts on the well test vehicle to fix the adjustable skew-adjusting roller device 5. The H-shaped fixing base 17 can also be installed at the rear of a temporary pickup truck, making it more mobile and adaptable. At the other end of the H-shaped fixing base 17, two video monitoring and early warning devices 20 are provided to assist operators in observing the dynamic situation at the wellhead.

[0043] Furthermore, the intelligent control and early warning system mainly includes a video monitoring and early warning device 20 and a drum rotation counter. Both can transmit relevant data to the central control display for the operator. Because the winch operator's field of vision is not aligned with the center of the wellhead, the operator cannot observe the wellhead and its surroundings, posing a significant drawback. The video monitoring and early warning device 20 effectively compensates for this drawback. There can be two, three, or even more video monitoring and early warning devices, depending on the complexity of the wellhead conditions. The video monitoring and early warning device monitors whether personnel have entered the danger zone. When personnel enter the video monitoring range, an intrusion warning audible alarm will immediately appear on the central control display, prompting the operator to observe and proceed with the next step. At the wellhead, the video monitoring and early warning device can observe whether the packing is tight enough and whether there are any leaks, ensuring safe and environmentally friendly operation. The drum rotation counter counts the number of drum rotations and transmits this information to the central control display. When the number of rotations is less than 100, an audible warning is issued, which can be correlated with the data on the winch operation panel, allowing for a slow and deliberate next step.

[0044] In this embodiment, as Figure 2 As shown: both the left and right ends of the horizontal fixing rod 12 are fixedly connected to ground anchor tensioning rings 19, and a lateral adjustment rod moving groove 13 is opened on the right side of the middle part of the horizontal fixing rod 12. The horizontal fixing rod 12 has lateral adjustment holes 14 through the front and rear ends of the lateral adjustment rod moving groove 13.

[0045] Specifically: The transverse fixing rod 12 has a lateral adjusting rod moving groove 13, slightly wider than the lateral adjusting rod 11, machined longitudinally, allowing the lateral adjusting rod 11 to move within the lateral adjusting rod moving groove 13. The transverse fixing rod 12 has several transverse adjusting holes 14 machined laterally upwards, which cooperate with the lateral adjusting groove 21 and are fixed by adjusting hole fixing bolts 15. Both ends of the transverse fixing rod 12 have fixing bolt holes 18, allowing for fixation with a flexible rope connection when the lateral tension of the steel wire is large.

[0046] In this embodiment, as Figure 2 As shown: The upper and lower ends of the skew steering roller 7 are fixedly connected to roller baffles 8, and the middle of the upper and lower ends of the skew steering roller 7 is provided with a skew steering roller shaft 9. The opposite ends of the skew steering roller shaft 9 are fixedly connected to lateral movable joints 10, and the lower part of the lateral movable joint 10 is connected to a transverse movable joint 16 through a connecting shaft. The lower end of the transverse movable joint 16 is fixedly connected to the upper left side of the transverse fixed rod 12.

[0047] Specifically: The skew-adjusting roller 7 is hyperbolic in shape, gradually widening from the center to both ends. This design allows the steel wire to rotate as close to the center as possible, ensuring the highest safety and preventing it from detaching from the roller. Two roller baffles 8 are located at both ends of the roller, with a diameter larger than the maximum diameter of the roller, further preventing the wire from slipping off. The roller is hollow to reduce its weight, and bearings are installed at both ends to ensure free rotation. An internal roller rotation counter counts the number of rotations and transmits the data to the operation display panel via a data cable. The surface of the skew-adjusting roller 7 has spiral-shaped anti-slip rotating grooves 7-1 surrounding its outer surface, further preventing the steel wire from detaching and ensuring it moves as close to the center as possible, guaranteeing safety during testing.

[0048] In this embodiment, as Figure 2 and Figure 5 As shown: The lateral movable joint 10 on the upper side of the eccentric steering roller 7 is connected to a lateral adjusting rod 11 via a rotating shaft. The lower part of the lateral adjusting rod 11 has a lateral adjusting groove 11-1, and the lower part of the lateral adjusting rod 11 is inserted into the lateral adjusting rod moving groove 13.

[0049] Specifically, the eccentric adjustment roller shaft 9, the lateral adjustment rod 11, and the transverse fixing rod 12 form a triangle. Using the three rotatable vertices—the transverse movable joint 16, the transverse adjustment hole 14, and the lateral movable joint 10—as base points, the roller shaft moves within the lateral adjustment rod moving groove 13 via the lateral adjustment groove 21, engaging with the transverse adjustment hole 14. This changes the angle between the eccentric adjustment roller shaft 9 and the transverse fixing rod 12, further preventing the steel wire from detaching from the eccentric adjustment roller 7 and ensuring it moves as close to the center position as possible, guaranteeing safety during the testing process. The adjustable angle range of the eccentric adjustment roller shaft 9 is between 30° and 150°.

[0050] In this embodiment, as Figure 2 and Figure 5 As shown: An adjustment hole fixing bolt 15 is inserted through the interior of the lateral adjustment groove 11-1, and the front and rear sides of the adjustment hole fixing bolt 15 are inserted into the transverse adjustment hole 14.

[0051] Specifically: the lower end of the lateral adjustment rod 11 is machined with a lateral adjustment groove 21, which is used in conjunction with the lateral adjustment hole 14.

[0052] In this embodiment, as Figure 2 and Figure 3 As shown: the outer wall of the skew-adjusting roller 7 is arc-shaped, and the outer side of the skew-adjusting roller 7 has an anti-slip rotation groove 7-1.

[0053] Specifically: the anti-slip rotating groove 7-1 has spiral protrusions around the outer surface of the roller, which can further prevent the steel wire from detaching from the deflection roller 7 and move in the middle position as much as possible to ensure the safety of the testing process.

[0054] In this embodiment, as Figure 2 and Figure 4 As shown: The adjusting roller shaft 9 includes an upper adjusting bushing 9-1 and a lower adjusting bushing 9-2. The upper and lower ends of the adjusting roller shaft 9 are fixedly connected with positioning rods, and the positioning rods on the upper and lower sides are respectively inserted into the inner side of the upper adjusting bushing 9-1 and the lower adjusting bushing 9-2 through bearings. The outer ends of the upper adjusting bushing 9-1 and the lower adjusting bushing 9-2 are fixedly connected with lateral movable joints 10.

[0055] Specifically: The adjusting roller shaft 9 has an upper adjusting sleeve 9-1 and a lower adjusting sleeve 9-2 at both ends. The lengths of the upper and lower adjusting sleeves 9-1 and 9-2 can be adjusted to a certain extent to ensure that the center of the adjusting roller 7 is as close as possible to the ground pulley 4. This further prevents the steel wire from detaching from the adjusting roller 7, ensuring it moves as close to the center position as possible and guaranteeing safety during testing. The adjusting roller shaft 9 also has a lateral movable joint 10 and a transverse movable joint 16 at both ends, which are threadedly connected and fixed to the adjusting roller shaft 9. The lateral movable joint 10 is connected and fixed to the lateral adjusting rod 11 and can rotate. The transverse movable joint 16 is connected and fixed to the transverse fixed rod 12 and can rotate.

[0056] In this embodiment, as Figure 2 As shown: There are multiple lateral adjustment holes 14, which are symmetrically and evenly spaced on the front and rear side walls of the lateral adjustment rod moving groove 13.

[0057] Specifically: the lateral adjustment hole 14 is provided in pairs, which can adjust the tilt angle of the lateral adjustment rod 11, thereby adjusting the tilt angle of the deflection roller 7.

[0058] When using the equipment, select a suitable location to park the well test winch 6, ensuring that the well test winch 6 is aligned with the wellhead device and that there are no instruments or equipment between it and the wellhead tree 1, so as not to affect the test operation. Then, fix the blowout preventer 2 to the wellhead tree 1, install the top pulley 3 on the upper end of the blowout preventer 2, and install the bottom pulley 4 on the lower end of the blowout preventer 2. Then, connect the fixing bolt holes 18 on the "H"-shaped fixing base 17 to the fixing screws reserved on the well test vehicle, and tighten the screws to fix it. Determine the height difference between the pulley 4 and the well test winch 6. Adjust the upper adjusting sleeve 9-1 and the lower adjusting sleeve 9-2 to keep the center of the skewer 7 as close as possible to the center of the pulley 4 and the well test winch 6. When the center of the skewer 7 is not at the same height as the pulley 4, adjust the lateral adjusting rod 11 to move within the lateral adjusting rod moving groove 13 to maintain a suitable tilt angle for easy on-site operation. Tighten all bolts, then install and fix the video monitoring and early warning device 20 in a suitable position, connect the connecting wires, and... Connect the central control display, debug the equipment to ensure normal operation, pass the steel wire through the middle part of the skew roller 7, connect the test instrument, and put it into the blowout preventer 2. Prepare the instrument before entering the well. Finally, adjust the positions of the top pulley 3 and the bottom pulley 4 so that the tangent points of the top pulley 3, the bottom pulley 4, and the skew roller 7 are in a straight line. Open the test valve of the wellhead 1 to start the test. When the adjustable skew roller device 5 is under great force, a rope can be used to fix and support it at the ground anchor tension ring 19, and the H-shaped fixed base 17 can be used to fix the skew roller 7.

[0059] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A well test winch centering device, characterized in that, include: The oil production tree (1) is fixedly connected to the upper end of the oil production tree (1), and the upper and lower ends of the blowout preventer (2) are respectively connected to the top pulley (3) and the bottom pulley (4). The well test winch (6) is connected to an adjustable deflection steering drum device (5) at its upper end, and the adjustable deflection steering drum device (5), the top pulley (3) and the bottom pulley (4) are connected with steel wires. The adjustable skew steering roller device (5) includes a skew steering roller (7), a roller baffle (8), a skew steering roller shaft (9), a lateral movable joint (10), and a lateral adjusting rod (11). The upper and lower ends of the skew steering roller (7) are fixedly connected to roller baffles (8), and the middle of the upper and lower ends of the skew steering roller (7) is provided with a skew steering roller shaft (9). The opposite ends of the skew steering roller shaft (9) are fixedly connected to lateral movable joints (10), and the lower part of the lateral movable joint (10) is connected to a transverse movable joint (16) through a connecting shaft. The lower end of the transverse movable joint (16) is fixedly connected to the upper left side of the transverse fixed rod (12). The lateral movable joint (10) on the upper side of the eccentric steering roller (7) is connected to a lateral adjusting rod (11) via a rotating shaft. The lower part of the lateral adjusting rod (11) has a lateral adjusting groove (11-1), and the lower part of the lateral adjusting rod (11) is inserted into the lateral adjusting rod moving groove (13). The lateral adjustment groove (11-1) is internally connected to an adjustment hole fixing bolt (15), and the front and rear sides of the adjustment hole fixing bolt (15) are inserted into the transverse adjustment hole (14).

2. The well test winch centering device according to claim 1, characterized in that: The well test winch (6) includes an "H"-shaped fixed base (17), a horizontal fixed rod (12), and a video monitoring and early warning device (20). The video monitoring and early warning device (20) is fixedly connected to the left and right sides of the upper rear side of the "H"-shaped fixed base (17) by a support rod. The horizontal fixed rod (12) is fixedly connected to the upper rear side of the "H"-shaped fixed base (17) by a bolt. The front side of the "H"-shaped fixed base (17) has a fixing bolt hole (18).

3. The well test winch centering device according to claim 2, characterized in that: Both ends of the horizontal fixing rod (12) are fixedly connected to ground anchor tensioning rings (19), and a lateral adjustment rod moving groove (13) is opened on the right side of the middle part of the horizontal fixing rod (12). A horizontal adjustment hole (14) is opened through the front and rear ends of the lateral adjustment rod moving groove (13) of the horizontal fixing rod (12).

4. The well test winch centering device according to claim 1, characterized in that: The outer wall of the skew-adjusting roller (7) is arc-shaped, and the outer side of the skew-adjusting roller (7) has an anti-slip rotation groove (7-1).

5. A well test winch centering device according to claim 1, characterized in that: The adjusting roller shaft (9) includes an upper adjusting bushing (9-1) and a lower adjusting bushing (9-2). The upper and lower ends of the adjusting roller shaft (9) are fixedly connected with positioning rods, and the positioning rods on the upper and lower sides are respectively inserted into the inner side of the upper adjusting bushing (9-1) and the lower adjusting bushing (9-2) through bearings. The outer ends of the upper adjusting bushing (9-1) and the lower adjusting bushing (9-2) are fixedly connected with lateral movable joints (10).

6. The well test winch centering device according to claim 1, characterized in that: The lateral adjustment holes (14) are provided in multiple ways, and the lateral adjustment holes (14) are symmetrically and evenly opened on the front and rear side walls of the lateral adjustment rod moving groove (13).

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