Logging instrument feeding tool for highly-deviated well

Abstract

The utility model discloses a highly-deviated well logging instrument feeding tool, and relates to the technical field of well drilling corollary equipment, the highly-deviated well logging instrument feeding tool comprises a logging instrument main body, an anti-collision plate is fixed on the outer surface of the logging instrument main body, and one side of the top of the anti-collision plate is connected with a second weighting rod through a second ball universal joint; and the top of the second weighting rod is connected with a second buoy through a second ball universal joint. According to the anti-collision device for the logging instrument, the logging instrument is protected through the anti-collision plate, the second weighting rod, the second buoy and the second ball head universal joint, so that a barrier collides with the anti-collision plate before colliding with the logging instrument main body, the phenomenon that the logging instrument main body is damaged after being collided is effectively reduced, and when the logging instrument main body enters liquid such as muddy water, the logging instrument main body is prevented from being damaged. The tail end of the logging instrument main body is also floated through the buoyancy of the second buoy, and the situation that the floating height of the tail end of the logging instrument main body is large is avoided through the second weighting rod; and the protection effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling supporting equipment, in particular to a logging instrument feeding tool for highly deviated wells. Background Technique

[0002] Logging equipment is of great significance to oil exploration and development. Using logging equipment and logging technology to detect mines can effectively collect various physical information in the underground environment, such as force, heat, nuclear, etc. Analyzing these data can effectively interpret the thickness and location of oil and gas layers within the oilfield, and can also determine some performance parameters related to exploitation. Logging equipment is divided into two types: on-well and down-hole. The tools for sending logging equipment into the well are classified according to different types of wells, such as vertical wells, inclined wells, etc.

[0003] When the existing logging instrument feeding tool for highly deviated wells is in use, there are a float and a counterweight at the bottom end of the logging instrument, making the head end of the logging instrument tilt upward to easily cross obstacles such as steps. However, the tail end of the logging instrument faces downward and is prone to contact with the well wall, resulting in the tail end of the logging instrument being easily collided with obstacles such as steps and stones. In the light case, it will affect the service life of the logging instrument, and in the severe case, the logging instrument will be damaged on the spot, causing losses and affecting the logging work. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a logging instrument feeding tool for highly deviated wells to solve the technical problem that the tail end of the logging instrument is prone to being knocked and damaged.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A logging instrument feeding tool for highly deviated wells, including a logging instrument main body. An anti-collision plate is fixed on the outer surface of the logging instrument main body, and one side of the top of the anti-collision plate is connected to a second weight rod through a second ball head universal joint. The top of the second weight rod is connected to a second float through a second ball head universal joint.

[0006] By adopting the above technical scheme, the logging instrument is protected through the setting of the anti-collision plate, so that the obstacle collides with the anti-collision plate before colliding with the logging instrument main body, effectively reducing the occurrence of damage to the logging instrument main body after being collided. When entering liquids such as muddy water, the buoyancy of the second float makes the tail end of the logging instrument main body also float, and the second weight rod is used to prevent the tail end of the logging instrument main body from floating too high. At the same time, the combination of the two second weight rods and the second float is equal to the first weight rod and the first float, making the logging instrument main body float as a whole and effectively reducing collisions.

[0007] Further, the anti-collision plate is frustum-shaped and made of high manganese steel, and the diameter of the anti-collision plate is larger than the diameter of the logging instrument main body.

[0008] By adopting the above technical solution, the logging instrument is protected by the setting of the anti-collision plate, so that the obstacle collides with the anti-collision plate before colliding with the main body of the logging instrument, effectively reducing the occurrence of damage to the main body of the logging instrument after being collided.

[0009] Furthermore, two anti-collision plates, second weight rods and second floats are provided, and the two anti-collision plates, second weight rods and second floats are arranged in a mirror image.

[0010] By adopting the above technical solution, the combination of the two second weight rods and the second floats is equal to the first weight rod and the first float, making the main body of the logging instrument float as a whole.

[0011] Furthermore, the second weight rod is rotatably connected to the anti-collision plate through a second ball head universal joint, and the second float is rotatably connected to the second weight rod through a second ball head universal joint.

[0012] By adopting the above technical solution, the buoyancy of the second float causes the tail end of the main body of the logging instrument to float, and the second weight rod is used to prevent the tail end of the main body of the logging instrument from floating too high.

[0013] Furthermore, the bottom of the main body of the logging instrument is connected to a first weight rod through a first ball head universal joint, and the bottom of the first weight rod is connected to a first float through a first ball head universal joint, and a cable is connected to the top of the main body of the logging instrument.

[0014] By adopting the above technical solution, the main body of the logging instrument is sent into a highly deviated well by pushing the cable, and at the same time, electrical signals and currents are transmitted through the cable. When the main body of the logging instrument enters a liquid such as muddy water, the buoyancy of the first float causes the head end of the main body of the logging instrument to float, and the first weight rod is used to prevent the head end of the main body of the logging instrument from floating too high.

[0015] Furthermore, both the second weight rod and the second float are semi-circular, and the diameters of the second weight rod and the second float are equal to those of the first weight rod and the first float.

[0016] By adopting the above technical solution, both the two second weight rods and the second floats are semi-circular, and at the same time, the diameters of the second weight rod and the second float are also equal to those of the first weight rod and the first float. Therefore, the buoyancy generated by the two second weight rods and the second floats is approximately equal to the buoyancy generated by the first weight rod and the first float, making the main body of the logging instrument float as a whole.

[0017] Furthermore, the first float is rotatably connected to the first weight rod through a first ball head universal joint, and the first weight rod is rotatably connected to the main body of the logging instrument through a first ball head universal joint.

[0018] By adopting the above technical solution, the buoyancy of the first buoy makes the head end of the logging instrument body float, and the first weight rod is used to prevent the head end of the logging instrument body from floating too high.

[0019] Furthermore, both the first buoy and the second buoy are made of titanium alloy.

[0020] By adopting the above technical solution, since both the first buoy and the second buoy are made of titanium alloy material, first, the strength is relatively high, and second, the light weight can generate greater buoyancy, which is convenient for the logging instrument body to float in muddy water and reduce collisions.

[0021] In summary, the present utility model mainly has the following beneficial effects:

[0022] The present utility model uses an anti-collision plate, a second weight rod, a second buoy, and a second ball head universal joint. Through the setting of the anti-collision plate, the logging instrument is protected, so that the obstacle collides with the anti-collision plate before colliding with the logging instrument body, effectively reducing the occurrence of damage to the logging instrument body after being collided. When entering liquids such as muddy water, the buoyancy of the second buoy makes the tail end of the logging instrument body also float, and the second weight rod is used to prevent the tail end of the logging instrument body from floating too high. At the same time, the combination of the two second weight rods and the second buoy is equal to the first weight rod and the first buoy, making the whole logging instrument body float, effectively reducing collisions; the protection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is an exploded structural diagram of the logging instrument body of the present utility model;

[0025] Figure 3 is an exploded structural diagram of the anti-collision plate of the present utility model;

[0026] Figure 4 is an exploded structural diagram of the second weight rod of the present utility model.

[0027] In the figure: 1, logging instrument body; 2, cable; 3, first weight rod; 4, first buoy; 5, first ball head universal joint; 6, anti-collision plate; 7, second weight rod; 8, second buoy; 9, second ball head universal joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0029] The embodiments of the present utility model will be described below according to its overall structure.

[0030] Embodiment 1:

[0031] A logging tool for deviated wells, as Figure 1 、 Figure 3 and Figure 4 shown, includes a logging tool body 1. An anti-collision plate 6 is fixed on the outer surface of the logging tool body 1. The anti-collision plate 6 is frustum-shaped and made of high manganese steel. The diameter of the anti-collision plate 6 is larger than that of the logging tool body 1. There are two anti-collision plates 6, second weighting rods 7 and second floats 8, and the two anti-collision plates 6, second weighting rods 7 and second floats 8 are arranged in a mirror image. Through the setting of the anti-collision plate 6, the logging tool is protected, so that the obstacle collides with the anti-collision plate 6 before colliding with the logging tool body 1, effectively reducing the occurrence of damage to the logging tool body 1 after being collided;

[0032] One side of the top of the anti-collision plate 6 is connected to a second weighting rod 7 through a second ball head universal joint 9. The second weighting rod 7 is rotatably connected to the anti-collision plate 6 through the second ball head universal joint 9. The top of the second weighting rod 7 is connected to a second float 8 through a second ball head universal joint 9. The second float 8 is rotatably connected to the second weighting rod 7 through the second ball head universal joint 9. Through the buoyancy of the second float 8, the tail end of the logging tool body 1 is also floated, and the second weighting rod 7 is used to prevent the tail end of the logging tool body 1 from floating too high; Both the second weighting rod 7 and the second float 8 are semi-circular, and the diameters of the second weighting rod 7 and the second float 8 are equal to those of the first weighting rod 3 and the first float 4. The buoyancy generated by the two second weighting rods 7 and second floats 8 is approximately equal to the buoyancy generated by the first weighting rod 3 and the first float 4.

[0033] Referring to Figures 1 - 3 , in the above embodiment, the bottom of the logging tool body 1 is connected to a first weighting rod 3 through a first ball head universal joint 5. The first weighting rod 3 is rotatably connected to the logging tool body 1 through the first ball head universal joint 5. The bottom of the first weighting rod 3 is connected to a first float 4 through a first ball head universal joint 5. The first float 4 is rotatably connected to the first weighting rod 3 through the first ball head universal joint 5. Through the buoyancy of the first float 4, the head end of the logging tool body 1 is floated, and the first weighting rod 3 is used to prevent the head end of the logging tool body 1 from floating too high; A cable 2 is connected to the top of the logging tool body 1 for facilitating the transmission of electrical signals and current.

[0034] Embodiment 2:

[0035] On the basis of the above Embodiment 1, in order to increase the structural buoyancy, the following settings are now made.

[0036] Referring to Figure 1 、 Figure 2 and Figure 4, in the above embodiment, both the first buoy 4 and the second buoy 8 are made of titanium alloy. Firstly, it has relatively high strength. Secondly, it is lightweight and can generate greater buoyancy, facilitating the logging instrument body 1 to float in muddy water and reducing collisions.

[0037] The implementation principle of the present utility model is as follows: Firstly, the logging instrument body 1 is sent into a highly deviated well through the pushing cable 2. During this process, the logging instrument is protected by the anti-collision plate 6, enabling the obstacle to collide with the anti-collision plate 6 before hitting the logging instrument body 1, effectively reducing the occurrence of damage to the logging instrument body 1 after being collided.

[0038] When the logging instrument body 1 enters a liquid such as muddy water, the buoyancy of the first buoy 4 causes the head end of the logging instrument body 1 to float, and the first weight rod 3 is used to prevent the head end of the logging instrument body 1 from floating too high. At the same time, the buoyancy of the second buoy 8 causes the tail end of the logging instrument body 1 to float, and the second weight rod 7 is used to prevent the tail end of the logging instrument body 1 from floating too high. Moreover, both the two second weight rods 7 and the second buoy 8 are semi-circular, and the diameters of the second weight rods 7 and the second buoy 8 are also equal to those of the first weight rod 3 and the first buoy 4. Therefore, the buoyancy generated by the two second weight rods 7 and the second buoy 8 is approximately equal to the buoyancy generated by the first weight rod 3 and the first buoy 4, enabling the logging instrument body 1 to float as a whole, effectively reducing collisions. At the same time, since both the first buoy 4 and the second buoy 8 are made of titanium alloy material, firstly, it has relatively high strength. Secondly, it is lightweight and can generate greater buoyancy, facilitating the logging instrument body 1 to float in muddy water and reducing collisions.

[0039] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and do not limit the utility model. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principles and purposes of the present utility model, make modifications, substitutions, and variations that do not contribute creatively to the embodiments as needed. However, as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A highly deviated well logging instrument delivery tool, comprising a logging instrument body (1), characterized in that: An anti-collision plate (6) is fixed on the outer surface of the logging instrument body (1), and a second weighting rod (7) is connected to one side of the top of the anti-collision plate (6) via a second ball head universal joint (9), and a second buoy (8) is connected to the top of the second weighting rod (7) via a second ball head universal joint (9).

2. The highly deviated well logging instrument delivery tool according to claim 1, characterized in that: The anti-collision plate (6) is in a truncated cone shape and is made of high manganese steel. The diameter of the anti-collision plate (6) is greater than the diameter of the well logging instrument body (1).

3. The highly deviated well logging instrument delivery tool according to claim 2, characterized in that: The anti-collision plate (6), the second weight rod (7) and the second buoy (8) are each provided with two, and the two anti-collision plates (6), the second weight rod (7) and the second buoy (8) are all arranged in a mirror image.

4. The highly deviated well logging instrument delivery tool according to claim 3, characterized in that: The second weight rod (7) is rotatably connected to the anti-collision plate (6) via a second ball joint (9), and the second buoy (8) is rotatably connected to the second weight rod (7) via a second ball joint (9).

5. The highly deviated well logging instrument delivery tool according to claim 1, characterized in that: The bottom of the well logging instrument body (1) is connected to a first weight rod (3) via a first ball head universal joint (5), and the bottom of the first weight rod (3) is connected to a first buoy (4) via a first ball head universal joint (5), and the top of the well logging instrument body (1) is connected to a cable (2).

6. The highly deviated well logging instrument delivery tool according to claim 5, characterized in that: The second weight rod (7) and the second buoy (8) are both semicircular, and the diameters of the second weight rod (7) and the second buoy (8) are equal to those of the first weight rod (3) and the first buoy (4).

7. The highly deviated well logging instrument delivery tool according to claim 5, characterized in that: The first buoy (4) is rotatably connected to the first weight rod (3) via a first ball joint (5), and the first weight rod (3) is rotatably connected to the well logging instrument body (1) via the first ball joint (5).

8. The highly deviated well logging instrument delivery tool according to claim 5, characterized in that: The first buoy (4) and the second buoy (8) are both made of titanium alloy.

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