Petroleum casing pipe anti-collision drift diameter rod
By designing a diameter rod structure with front and rear guide anti-collision components with guide conical surfaces, the collision problem of the diameter rod when entering and exiting the oil pipeline is solved, and the effect of reducing damage, improving efficiency and reducing costs is achieved.
Patent Information
- Application Number
- CN202421469383.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-26
AI Technical Summary
When entering and exiting the oil pipeline, existing diameter rods are prone to collision with the external threads of the oil casing and the internal threads of the joints, resulting in damage, increasing the scrap rate of the oil casing and the difficulty of the work of the workers.
A diameter rod structure including a front guide anti-collision member and a rear guide anti-collision member is designed. The front guide anti-collision member has a guide conical surface gradually narrowing from rear to front, and the rear guide anti-collision member has a guide gradually from front to rear. The narrowed guide conical surface, through the inclination angle and design of these components, reduces collision with the oil tubing sleeve and joint threads.
Effectively reduce the collision between the diameter rod and the oil casing and coupling during the diameter operation, protect the thread, improve the yield and work efficiency, and save resources and costs because the anti-collision parts can be replaced.
Smart Images
Figure CN222526284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a through-diameter rod structure of an oil casing. Background Art
[0002] In the process of oil well exploration and exploitation, oil pipelines are indispensable tools. When in use, two sections of oil casing are generally connected by oil pipe couplings with internal threads at both ends to achieve continuous lengthening. Therefore, there are precise requirements for the straightness and inner diameter of the oil casing. In order to avoid blockage after the pump is turned on due to obstruction of the inner diameter, a diameter rod is generally used to conduct full-length diameter of the oil casing to determine whether the oil casing meets the use requirements. This is a key process.
[0003] The front and rear ends of the commonly used drift rods are both at 90° angles. When entering the oil pipeline, it is very easy for the front end of the drift rod to collide with the external threads of the oil casing, thereby causing damage to the external threads. When the drift rod is withdrawn after the drift is completed, the rear end of the drift rod collides with the internal threads of the oil casing coupling, thereby causing damage to the internal threads, resulting in a high scrap rate for the oil casing. Workers need to be cautious when using it, and the work efficiency is not high.
[0004] Patent announcement number CN214308519U discloses an oil casing anti-collision diameter rod, including a diameter rod body and a guide anti-collision part arranged at one end of the diameter rod body, the guide anti-collision part includes a cylindrical part and a frustum part, the cylindrical part and the frustum part are an integrated structure, the cylindrical part is directly connected to the diameter rod body, and the frustum part is located at the end of the guide anti-collision part. The utility model can ensure that the oil casing coupling diameter rod will not cause diameter collision during use, and has a simple structure, which is conducive to saving production costs. The diameter rod structure can avoid damage to the external thread of the oil casing when the front end is extended, but does not consider the damage caused by collision to the internal thread of the oil pipe coupling when withdrawing. The front end guide anti-collision part is a solid conical structure with poor deformability. Utility Model Content
[0005] The utility model provides a petroleum casing anti-collision diameter rod in view of the above-mentioned prior art, which reduces the collision damage with the internal thread of the petroleum casing and the external thread of the petroleum coupling during the diameter adjustment process, avoids diameter damage, and improves the yield and work efficiency.
[0006] The technical solution adopted by the utility model to solve the above-mentioned problem is: a petroleum casing anti-collision diameter rod, characterized in that it comprises a diameter rod body, a diameter rod, a front guide anti-collision component arranged at the front end of the diameter rod body and a rear guide anti-collision component arranged at the rear end of the diameter rod body, the diameter rod passes through the diameter rod body front and back and is respectively detachably fixedly connected with the front guide anti-collision component and the rear guide anti-collision component, the front guide anti-collision component has a guide conical surface that gradually narrows from the back to the front, and the rear guide anti-collision component has a guide conical surface that gradually narrows from the front to the back.
[0007] As one of the preferred embodiments of the present application, a front frustum is provided at the rear end of the front guide anti-collision component, and a rear frustum is provided at the front end of the rear guide anti-collision component. The diameter rod body is cylindrical, and the front and rear ends are supported on the front frustum and the rear frustum respectively.
[0008] As one of the preferred embodiments of the present application, the outer diameters of the front and rear truncated cones are the same as the inner diameter of the through-diameter rod body, the axial length is 50 to 60 mm, and the radial thickness is 30 to 40 mm.
[0009] As one of the preferred embodiments of the present application, a front circular hole is set at the center of the front guide anti-collision component, and a rear circular hole is set at the center of the rear guide anti-collision component. The through-diameter rod passes through the front circular hole and the rear circular hole. A front nut is set at the front end of the front circular hole and a rear nut is set at the rear end of the rear circular hole for locking the through-diameter rod.
[0010] As one of the preferred embodiments of the present application, the inner surfaces of the front circular hole and the rear circular hole are provided with internal threads which cooperate with the threads of the through-diameter rod.
[0011] As one of the preferred embodiments of the present application, the guiding angle of the guiding conical surface is 20° to 30°.
[0012] As one of the preferred embodiments of the present application, the front guide anti-collision component has a front end face, which is located in the middle of the guide conical surface. The front end face and the guide conical surface form two front and rear recesses, and the through-diameter rod is detachably fixedly connected to the front end face.
[0013] As one of the preferred embodiments of the present application, the rear guide anti-collision component has a rear end face, the rear end face is located at the rear end of the guide conical surface, and the through-diameter rod is detachably fixedly connected to the rear end face.
[0014] Compared with the prior art, the advantages of the utility model are: the diameter rod has a simple structure, can effectively reduce the collision between the diameter rod and the oil casing and the oil coupling during the diameter operation, protect the thread, improve the operation efficiency and the yield rate, and the guide anti-collision component in the diameter rod of the present application is replaceable, which can greatly save resources and costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the through-diameter rod in the embodiment of the utility model;
[0016] In the figure, 1, the diameter-passing rod body; 2, the front guide anti-collision component; 201, the front circular hole; 202, the front frustum; 203, the guide conical surface; 204, the front nut; 3, the rear guide anti-collision component; 301, the rear circular hole; 302, the rear frustum; 303, the rear nut; 4, the diameter-passing rod. DETAILED DESCRIPTION
[0017] The present invention is further described in detail below in conjunction with the accompanying drawings. The embodiments are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The text description in this embodiment corresponds to the accompanying drawings, and the description of the orientation is also based on the description of the accompanying drawings, and should not be understood as limiting the scope of protection of the present invention.
[0018] like Figure 1 As shown, a petroleum casing anti-collision diameter rod structure includes a diameter rod body 1, a diameter rod 4, a front guide anti-collision component 2 arranged at the front end of the diameter rod body, and a rear guide anti-collision component 3 arranged at the rear end of the diameter rod body. The diameter rod body 1 is barrel-shaped and made of wear-resistant 45# steel.
[0019] A front circular hole 201 is opened at the axial center of the front guide anti-collision component 2 arranged at the front end of the through-diameter rod body 1, and an internal thread is arranged inside the front circular hole 201. The diameter of the front circular hole 201 is the same as the diameter of the through-diameter rod 4. A front nut 204 is arranged in front of the front circular hole 201 for tightening and fixing the through-diameter rod 4 passing through the front circular hole 201.
[0020] The front guide anti-collision component 2 arranged at the front end of the diameter rod 4 body is made of nylon, has a guide angle at its head, the guide angle is 30°, and has a circle of protruding front cones 202 at the tail. The outer diameter of the front cone 202 is the same as the inner diameter of the diameter rod body 1, the axial length is 50-60mm, and the radial wall thickness is 30-40mm; when in use, the front guide anti-collision component 2 is pressed down with force to embed the front cone 202 into the diameter rod body 1.
[0021] The guide angle of the head of the front guide anti-collision component 2 is controlled by a frustum 203 (guide conical surface) with an inclined angle. The inside and outside of the frustum are formed into concave cavities, which reduces weight, saves materials, and has better deformability and is not afraid of collision.
[0022] A rear circular hole 301 is opened at the axial center of the rear guide anti-collision component 3 arranged at the rear end of the through-diameter rod body 1, and an internal thread is arranged inside the rear circular hole 301. The diameter of the rear circular hole 301 is the same as the diameter of the through-diameter rod 4. A rear nut 303 is arranged behind the rear circular hole 301 for tightening and fixing the through-diameter rod 4 passing through the rear circular hole 201.
[0023] The rear guide anti-collision component 3 arranged at the rear end of the through-diameter rod body 1 is made of nylon, is a guide conical surface, and has a guide angle of 20°. There is a circle of protruding rear truncated cone 302 at the front. The outer diameter of the rear truncated cone 302 is the same as the inner diameter of the through-diameter rod body 1, the axial length is 50-60mm, and the radial wall thickness is 30-40mm. When in use, the rear guide anti-collision component 3 is pressed down with force to embed the rear truncated cone 302 into the through-diameter rod body 1.
[0024] The through-diameter rod 4 is provided with an external thread at a position where it connects with the front circular hole 201 and the rear circular hole 301 .
[0025] When preparing for the diameter-passing process, the front guide anti-collision component 2 and the rear guide anti-collision component 3 are connected to the diameter-passing rod body 1 through the front truncated cone 202 and the rear truncated cone 302, and the internal threads of the front circular hole 201 and the rear circular hole 301 and the external threads of the diameter-passing rod 4, the front nut 204, and the rear nut 303 at the connection point are connected as a whole to form a diameter-passing structure. The anti-collision component is made of nylon and has a small inclination angle. It can enter the inside of the oil pipe sleeve without damaging the external thread of the oil pipe sleeve, and play a guiding role for the diameter-passing rod body 1; when exiting the oil pipe sleeve after the full-length diameter, the rear guide anti-collision component 3 has a small inclination angle, and can slide out of the oil pipe sleeve without damaging the internal thread of the oil coupling, and play a guiding role for the exit of the diameter-passing rod body 1. The diameter-passing rod with this structure can reduce collision damage in the diameter-passing process, and improve the yield rate and work efficiency.
[0026] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims
1. A petroleum casing anti-collision diameter rod, characterized in that: The invention comprises a through-diameter rod body (1), a through-diameter rod (4), a front guide anti-collision component (2) arranged at the front end of the through-diameter rod body (1), and a rear guide anti-collision component (3) arranged at the rear end of the through-diameter rod body (1); the through-diameter rod (4) passes through the through-diameter rod body (1) front and back and is respectively fixedly connected to the front guide anti-collision component (2) and the rear guide anti-collision component (3) in a detachable manner; the front guide anti-collision component (2) has a guide conical surface that gradually narrows from the back to the front, and the rear guide anti-collision component (3) has a guide conical surface that gradually narrows from the front to the back.
2. The anti-collision drift rod for oil casing according to claim 1 is characterized in that: A front truncated platform (202) is arranged at the rear end of the front guide anti-collision component (2), and a rear truncated platform (302) is arranged at the front end of the rear guide anti-collision component (3). The diameter rod body (1) is cylindrical, and the front and rear ends are respectively supported on the front truncated platform (202) and the rear truncated platform (302).
3. The anti-collision drift rod for oil casing according to claim 2 is characterized in that: The outer diameters of the front truncated cone (202) and the rear truncated cone (302) are the same as the inner diameter of the through-diameter rod body (1), the axial length is 50 to 60 mm, and the radial thickness is 30 to 40 mm.
4. The anti-collision drift rod for oil casing according to claim 1 is characterized in that: A front circular hole (201) is arranged at the center of the front guide anti-collision component (2), a rear circular hole (301) is arranged at the center of the rear guide anti-collision component (3), the through-diameter rod (4) passes through the front circular hole (201) and the rear circular hole (301), a front nut (204) is arranged at the front end of the front circular hole (201), and a rear nut (303) is arranged at the rear end of the rear circular hole (301) for locking the through-diameter rod (4).
5. The anti-collision drift rod for oil casing according to claim 4 is characterized in that: The inner surfaces of the front circular hole (201) and the rear circular hole (301) are provided with internal threads, and the diameter rod is provided with external threads at corresponding positions. The front circular hole (201) and the rear circular hole (301) are threadedly matched with the diameter rod (4).
6. The anti-collision drift rod for oil casing according to claim 1, characterized in that: The guiding angle of the guiding conical surface is 20° to 30°.
7. The anti-collision drift rod for oil casing according to claim 1 is characterized in that: The front guide anti-collision component (2) has a front end face, which is located in the middle of the guide conical surface. The front end face and the guide conical surface form two front and rear concave parts, and the through-diameter rod (4) is detachably fixedly connected to the front end face.
8. The anti-collision drift rod for oil casing according to claim 1 is characterized in that: The rear guide anti-collision component (3) has a rear end surface, the rear end surface is located at the rear end of the guide conical surface, and the through-diameter rod (4) is detachably fixedly connected to the rear end surface.