Y-shaped auxiliary testing device for optical cable entering well
By designing the Y-type auxiliary test device for optical cable entry into the well of Y-type branchers and tool pulley components, the problem of wear and corrosion of optical cables during the well entry process is solved, the stable crossing and rolling support of optical cables is achieved, and the accuracy of logging data is improved. sex.
Patent Information
- Application Number
- CN202420963576.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-07
AI Technical Summary
During the exploration and development of resources such as oil and natural gas, optical cable logging technology is widely used due to high accuracy and high efficiency, but during the well entry process, it is susceptible to complex factors such as wear and corrosion, resulting in a decline in optical cable performance and affecting logging data accuracy.
A Y-type auxiliary test device for optical cable entry is designed, including a Y-type brancher and tool pulley assembly. Through anti-wear sleeves, support pulleys and limit slide rods, the optical cables are prevented from wear and rolling support and reduce friction.
The optical cable is realized without interruption during the well entry process, avoiding too much friction, ensuring the stability of the optical cable performance, facilitating the use of optical cables of different diameters, and improving the accuracy of logging data.
Smart Images
Figure CN222259672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical cable well entry, in particular to a Y-shaped auxiliary testing device for optical cable well entry. Background Art
[0002] Optical cable downhole refers to the process of lowering the optical cable through the wellhead into an oil well, gas well or other types of wells for data transmission, communication and monitoring. This process is one of the key links in the exploration and development of underground resources such as oil and natural gas.
[0003] However, in actual use of existing technologies, in the exploration and development of resources such as oil and natural gas, optical cable logging technology has been widely used due to its high precision and high efficiency. However, the test optical cable is often affected by various complex factors during the process of entering the well, such as wear and corrosion, which leads to the degradation of optical cable performance and affects the accuracy of logging data. Utility Model Content
[0004] The purpose of the utility model is to provide a Y-type auxiliary test device for optical cable well entry, so as to solve the problem that in the exploration and development of resources such as oil and natural gas, optical cable logging technology is widely used due to its high precision and high efficiency. However, the test optical cable is often affected by various complex factors during the well entry process, such as wear and corrosion, which leads to the degradation of optical cable performance and affects the accuracy of logging data.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a Y-type splitter and a tooling pulley assembly;
[0006] An upper joint is provided at the upper end of the Y-type splitter, a lower joint is provided at the lower end of the Y-type splitter, an optical cable channel for inserting an optical cable into the Y-type splitter is provided through the outer wall of the Y-type splitter, and an anti-wear sleeve for preventing the outer end of the optical cable from being worn is bonded to the inner wall of the optical cable channel;
[0007] An upper interface is provided at the upper end of the tooling pulley assembly, a tapered guide opening is provided on the inner wall in the middle of the tooling pulley assembly, a pulley groove is fixedly installed on the inner wall at the lower end of the tooling pulley assembly, limited straight slide grooves are provided on both sides of the inner wall of the pulley groove, and a limited sliding rod is fixedly installed on the inner wall of the limited straight slide groove, and sliders are movably connected to the outer curved surfaces at both ends of the limited sliding rod, and a supporting pulley for rolling support of the cable is rotatably connected to the middle part of the slider through a pin shaft, a supporting spring is fixedly installed on the outer side of the slider, and a lower interface is fixedly installed on the lower end of the tooling pulley assembly.
[0008] Preferably, the upper joint is connected to the oil pipe through a rotary joint.
[0009] Preferably, the optical cable channel is inclined downward and penetrates into the interior of the Y-type splitter.
[0010] Preferably, the inner wall of the anti-wear sleeve is interference-connected with a sealing plug for sealing the inner wall of the anti-wear sleeve.
[0011] Preferably, the outer end of the upper interface fits with the inner wall of the lower joint, and the upper and lower openings of the conical guide port are respectively provided with rounded corners.
[0012] Preferably, there are two limiting straight sliding grooves, which are symmetrically distributed on both sides of the inner wall of the pulley groove.
[0013] Preferably, there are two supporting pulleys, which are symmetrically distributed at the lower opening of the conical guide opening, and the supporting spring is fixedly installed on the inner wall of the limiting straight sliding groove at one end away from the sliding block.
[0014] Preferably, the lower interface is connected to the oil pipe through a rotary joint.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. When the joint part of the test optical cable is connected to the well-entering tool, the upper joint is connected with the oil pipe through the rotary joint. When the upper joint is connected with the oil pipe through the rotary joint, the inner wall of the lower joint is connected with the outer end of the upper interface through interference fit. When the inner wall of the lower joint is connected with the outer end of the upper interface through interference fit, the lower interface is connected with the oil pipe through the rotary joint. When the lower interface is connected with the oil pipe through the rotary joint, the test optical cable is continued to be inserted downward along the inside of the oil pipe through the lower interface. When the test optical cable is continued to be inserted downward along the inside of the oil pipe, the joint part of the test optical cable is connected to the well-entering tool and moves downward inside the oil pipe, thereby facilitating the test optical cable to pass through and convert from the outer wall of the oil pipe to the inside without being cut off. At the same time, the outer end of the test optical cable is supported by the support pulley to roll, so as to avoid excessive friction of the test optical cable during the well-entering process.
[0017] 2. The utility model also further realizes that when the test optical cable passes through the inner side of the support pulley, the outer end of the test optical cable will push the support pulley to move outward. When the support pulley moves outward, it will drive the slider to move straight outward along the outer curved surface of the limit slide bar. When the slider moves straight outward, it will push the compressed support spring. When the support spring is pushed and compressed, the elastic potential energy generated by its own compression deformation will push the slider in the opposite direction to move straight inward, so that the slider pushes the inner side of the support pulley to always roll and support the outer end of the test optical cable, thereby facilitating the rolling support of test optical cables of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1This is a schematic diagram of the overall structure of a Y-type auxiliary test device for optical cable entering a well. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the overall structure of a Y-type auxiliary test device for optical cable entering a well. Figure 2 ;
[0020] Figure 3 This is a schematic cross-sectional view of the overall structure of a Y-shaped auxiliary test device for optical cable entering a well according to the utility model;
[0021] Figure 4 The utility model is a schematic cross-sectional view of the local structure of a Y-shaped auxiliary test device for optical cable entering a well.
[0022] In the figure: 1. Y-type splitter; 101. upper joint; 102. lower joint; 103. optical cable channel; 104. anti-wear sleeve; 105. sealing plug; 2. tooling pulley assembly; 201. upper interface; 202. conical guide port; 203. pulley groove; 204. limiting straight slide groove; 205. limiting slide rod; 206. slider; 207. support pulley; 208. support spring; 209. lower interface. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-4 , the utility model provides a technical solution of a Y-type auxiliary test device for optical cable entering a well: comprising a Y-type branching device 1 and a tooling pulley assembly 2;
[0025] An upper joint 101 is provided at the upper end of the Y-type branch 1, and the upper joint 101 is connected with the oil pipe through a rotating joint, and a lower joint 102 is provided at the lower end of the Y-type branch 1. An optical cable channel 103 for inserting the optical cable into the Y-type branch 1 is provided through the outer wall of the Y-type branch 1, and the optical cable channel 103 is downwardly inclined and penetrates into the Y-type branch 1. An anti-wear sleeve 104 for preventing the outer end of the optical cable from being worn is bonded to the inner wall of the optical cable channel 103, and a sealing plug 105 for sealing the inner wall of the anti-wear sleeve 104 is interference-connected to the inner wall of the anti-wear sleeve 104;
[0026] An upper interface 201 is provided at the upper end of the tooling pulley assembly 2, and the outer end of the upper interface 201 fits with the inner wall of the lower joint 102, so that the outer end of the upper interface 201 and the inner wall of the lower joint 102 can be interference connected with each other, and a conical guide opening 202 is provided on the inner wall of the middle part of the tooling pulley assembly 2, and the upper and lower openings of the conical guide opening 202 are respectively provided with rounded corners, so that the upper and lower openings of the conical guide opening 202 remain smooth, which is convenient for guiding the cable to pass through, and a pulley groove 203 is fixedly installed on the inner wall of the lower end of the tooling pulley assembly 2, and limited straight sliding grooves 204 are provided on both sides of the inner wall of the pulley groove 203, and there are two limited straight sliding grooves 204, which are symmetrically distributed on both sides of the inner wall of the pulley groove 203, and the inner wall of the limited straight sliding groove 204 is fixedly installed A limit slide bar 205 is provided, and the outer curved surfaces at both ends of the limit slide bar 205 are movably connected with a slide bar 206. The middle part of the slide bar 206 is rotatably connected with a support pulley 207 for rolling support of the cable through a pin shaft. There are two support pulleys 207, which are symmetrically distributed at the opening of the lower end of the tapered guide opening 202. A support spring 208 is fixedly installed on the outer side of the slide bar 206, and the support spring 208 is fixedly installed on the inner wall of the limit straight slide groove 204 at one end away from the slide bar 206, so that the slide bar 206 is elastically supported in a limited position by the support spring 208 and the limit slide bar 205. A lower interface 209 is fixedly installed at the lower end of the tooling pulley assembly 2, and the lower interface 209 is connected with the oil pipe through a rotating joint.
[0027] Working principle: When in use, the utility model pulls out the sealing plug 105 along the inner wall of the anti-wear sleeve 104. When the sealing plug 105 is pulled out, the test optical cable required to go into the well is passed through the inner wall of the optical cable channel 103 into the Y-type splitter 1. When the test optical cable is passed through the inner wall of the optical cable channel 103 into the Y-type splitter 1, the anti-wear sleeve 104 will play a role in preventing the outer end of the test optical cable from being worn, and the test optical cable will continue to be passed downward. When the test optical cable continues to be passed downward, the test optical cable will pass downward along the tapered guide opening 202. When the test optical cable is passed downward along the tapered guide opening 202, it will pass through the inner side of the support pulley 207. When the test optical cable passes through the inner side of the support pulley 207, the support pulley 207 will play a rolling support role for the test optical cable. When the test optical cable passes through the inner side of the support pulley 207, the connector part of the test optical cable is connected to the well tool. When the connector part of the test optical cable When connecting the downhole tool, the upper joint 101 is matched and connected with the oil pipe through the rotary joint. When the upper joint 101 is matched and connected with the oil pipe through the rotary joint, the inner wall of the lower joint 102 is connected with the outer end of the upper interface 201 through an interference fit. When the inner wall of the lower joint 102 is connected with the outer end of the upper interface 201 through an interference fit, the lower interface 209 is matched and connected with the oil pipe through the rotary joint. When the lower interface 209 is matched and connected with the oil pipe through the rotary joint, the test optical cable is continued to be inserted downward along the inside of the oil pipe through the lower interface 209. When the test optical cable is continued to be inserted downward along the inside of the oil pipe, the joint part of the test optical cable is connected to the downhole tool and moves downward inside the oil pipe, thereby facilitating the test optical cable to pass and convert from the outer wall of the oil pipe to the inside without being cut off. At the same time, the outer end of the test optical cable is supported by the support pulley 207 to roll, so as to avoid excessive friction of the test optical cable during the downhole process.
[0028] At the same time, when the test optical cable passes through the inner side of the support pulley 207, the outer end of the test optical cable will push the support pulley 207 to move outward. When the support pulley 207 moves outward, it will drive the slider 206 to move straight outward along the outer curved surface of the limiting slide bar 205. When the slider 206 moves straight outward, it will push the compression support spring 208. When the support spring 208 is pushed and compressed, the elastic potential energy generated by its own compression deformation will push the slider 206 to move straight inward in the opposite direction, so that the slider 206 pushes the inner side of the support pulley 207 to always roll and support on the outer end of the test optical cable, thereby facilitating the rolling support of test optical cables of different diameters.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A Y-type auxiliary test device for optical cable entering a well, characterized in that: It comprises a Y-shaped branching device (1) and a tooling pulley assembly (2); The upper end of the Y-type branching device (1) is provided with an upper joint (101), the lower end of the Y-type branching device (1) is provided with a lower joint (102), the outer wall of the Y-type branching device (1) is provided with an optical cable channel (103) for inserting an optical cable into the Y-type branching device (1), and the inner wall of the optical cable channel (103) is bonded with an anti-wear sleeve (104) for preventing the outer end of the optical cable from being worn; An upper interface (201) is provided at the upper end of the tooling pulley assembly (2), a conical guide opening (202) is provided at the middle inner wall of the tooling pulley assembly (2), a pulley groove (203) is fixedly installed on the inner wall of the lower end of the tooling pulley assembly (2), limited straight slide grooves (204) are provided on both sides of the inner wall of the pulley groove (203), and a limited slide rod (205) is fixedly installed on the inner wall of the limited straight slide groove (204), and sliders (206) are movably connected to the outer curved surfaces at both ends of the limited slide rod (205), and a support pulley (207) for rolling support of the cable is rotatably connected to the middle part of the slider (206) through a pin shaft, and a support spring (208) is fixedly installed on the outer side of the slider (206), and a lower interface (209) is fixedly installed at the lower end of the tooling pulley assembly (2).
2. A Y-type auxiliary test device for optical cable entering a well according to claim 1, characterized in that: The upper joint (101) is connected to the oil pipe through a rotary joint.
3. A Y-type auxiliary test device for optical cable entering a well according to claim 2, characterized in that: The optical cable channel (103) is inclined downward and penetrates into the interior of the Y-shaped branching device (1).
4. A Y-type auxiliary test device for optical cable entering a well according to claim 3, characterized in that: The inner wall of the anti-wear sleeve (104) is interference-connected with a sealing plug (105) for sealing the inner wall of the anti-wear sleeve (104).
5. A Y-type auxiliary test device for optical cable entering a well according to claim 4, characterized in that: The outer end of the upper interface (201) fits with the inner wall of the lower joint (102), and the upper and lower openings of the conical guide opening (202) are respectively provided with rounded corners.
6. A Y-type auxiliary test device for optical cable entering a well according to claim 5, characterized in that: There are two position-limiting straight sliding grooves (204), which are symmetrically distributed on both sides of the inner wall of the pulley groove (203).
7. A Y-type auxiliary test device for optical cable entering a well according to claim 6, characterized in that: There are two supporting pulleys (207), which are symmetrically distributed at the lower opening of the conical guide opening (202), and the supporting spring (208) is fixedly installed on the inner wall of the limiting straight sliding groove (204) at one end away from the sliding block (206).
8. A Y-type auxiliary test device for optical cable entering a well according to claim 7, characterized in that: The lower interface (209) is connected to the oil pipe through a rotary joint.