Sealed headstall logging instrument shell free of rubber sleeve and logging instrument with sealed headstall logging instrument shell
By designing a sealed rubber-free bridle logger in a petroleum logging device, the internal sealing and tensile balance are achieved using the balance sleeve and pressure relief hole structure, the problems of degradation of electrical insulation performance and cumbersome maintenance in the existing bridle structure are solved. , realizes efficient logging and torpedo assembly recovery in mud media.
Patent Information
- Application Number
- CN202420012518.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The bridle structure in existing petroleum logging devices can easily lead to degradation of electrical insulation performance, cumbersome maintenance and poor results, especially when used in mud media, water vapor infiltration problems are prone to occur.
A sealed rubber-free bridle logger is designed, using hollow logger shell, balance sleeve, tension bar joint and pressure nut structure, which realizes internal sealing and tension balance through pressure relief holes and balance space, allowing for the Drag the baton joint under sealing conditions to facilitate the recycling of torpedo components.
While ensuring the seal of the logging instrument housing, it can prevent sludge from entering, avoid the tension bar joint being pressed, realize the timely pulling of the tension bar and the recycling of torpedo components, and improve the efficiency and sealing of the logging instrument .
Smart Images
Figure CN222184745U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of petroleum logging devices, and in particular to a sealed rubber sleeve-free bridle logging instrument housing and a logging instrument thereof. Background Art
[0002] Oil well logging is one of the most important processes in the field of oil exploration and production. Whether it is the traditional open hole vertical well or the currently popular drill pipe horizontal logging, the bridle is an indispensable and important short section in the mature logging process. The various types of existing bridles basically adopt the electrical signal transmission method of the three-piece set of sealing needle, rubber sleeve and copper plug. First of all, this method has very high requirements for the design, manufacturing process and installation of the three-piece set. Secondly, the three-piece set is exposed to external media such as mud, and water vapor often enters the rubber sleeve and sealing needle, frequently causing the electrical insulation performance of the instrument to decrease, thereby affecting the logging effect of the entire string of instruments; this structure is very cumbersome to maintain and repair, and requires the circulation of high-temperature silicone grease before logging each well, which brings a huge workload to the user and the effect is average. Utility Model Content
[0003] In view of this, the present application proposes a sealed rubber sleeve-free bridle logging tool housing and a logging tool thereof, which can break the tension rod in an emergency while ensuring the sealing of the logging tool housing.
[0004] According to one aspect of the present application, a sealed rubber sleeve-free bridle logging tool is provided, comprising: a logging tool housing, a balancing sleeve, a tension rod joint, a tension rod and a pressure nut;
[0005] The logging instrument housing is hollow inside and open at both ends, and a first pressure relief hole and a second pressure relief hole are respectively provided at the upper and lower parts of the middle of the logging instrument;
[0006] The balancing sleeve is arranged inside the housing of the logging instrument, between the first pressure relief hole and the second pressure relief hole, and the balancing sleeve is provided with a penetrating balancing hole in the axial direction;
[0007] The top of the tension rod joint is suitable for being provided with a torpedo assembly, and the tension rod joint is embedded in the top opening of the logging instrument, and the bottom passes through the balance hole;
[0008] The tension rod is connected and arranged at the bottom of the tension rod joint and is connected to the well logging tool housing;
[0009] The pressure-bearing nut is arranged inside the housing of the logging instrument and is fixedly connected thereto, and the pressure-bearing nut abuts against the tension rod.
[0010] In a possible implementation, the cross section of the tension rod joint is a "convex"-shaped structure;
[0011] The end with a larger cross section of the tension rod joint is a cable end, and the cable end is in contact with the inner wall of the logging tool housing;
[0012] The end with a smaller cross-section of the tension rod joint is a tension end, and the tension end passes through the interior of the balancing sleeve. The tension ends of the tension rod joint correspond to the first pressure relief hole and the second pressure relief hole respectively.
[0013] In a possible implementation, the tension rod joint is a hollow structure, and a fixing hole is provided at the cable end of the tension rod joint, the fixing hole is communicated with the interior of the tension rod joint, and the torpedo assembly is embedded in the fixing hole;
[0014] A wiring hole is provided on the side wall of the tension end of the tension rod joint, and the wiring hole is communicated with the interior of the tension rod joint.
[0015] In a possible implementation, the invention further includes: a threading tube;
[0016] The balancing sleeve is provided with a wiring groove, and two ends of the wiring groove are respectively connected with the wiring hole and the second pressure relief hole;
[0017] One end of the threading tube is embedded in the wiring groove, and the other end extends to the inside of the logging instrument housing.
[0018] In a possible implementation, there are two first pressure relief holes, which penetrate the casing of the well logging tool along an axial direction perpendicular to the casing of the well logging tool;
[0019] There are four second pressure relief holes, which penetrate the casing of the well logging tool along an axial direction perpendicular to the casing of the well logging tool.
[0020] In one possible implementation, a tension rod mounting hole is provided at the tension end of the tension rod joint, an internal thread is provided inside the tension rod mounting hole, an external thread is provided at one end of the tension rod, and the tension rod is threadedly connected to the tension rod mounting hole.
[0021] In a possible implementation, one end of the balancing sleeve in the axial direction is spaced apart from the cable end of the tension rod joint by a first preset distance, and the cable end of the tension rod, the balancing sleeve and the logging tool housing form a first balancing space, and the first balancing space is communicated with the first pressure relief hole;
[0022] The other end of the balancing sleeve in the axial direction is spaced apart from the tension end of the tension rod joint by a second preset distance, and the tension end of the tension rod, the balancing sleeve and the logging tool housing form a second balancing space, and the second balancing space is connected to the second pressure relief hole; and
[0023] The first preset distance is equal to the second preset distance
[0024] The threading tube passes through the second balancing space.
[0025] A sealed rubber sleeve-free bridle logging tool, comprising the sealed rubber sleeve-free bridle logging tool housing described above, and further comprising: a torpedo assembly, a wire, a sealing needle, a plug assembly and a lower plug;
[0026] The torpedo assembly is embedded in the top opening of the tension rod assembly;
[0027] The plug part is embedded in the housing of the logging instrument and is located below the pressure nut;
[0028] The sealing needle is arranged on the plug part;
[0029] One end of the wire is connected to the torpedo assembly, and the other end passes through the fixing hole, the wiring hole, the wiring groove and the threading tube in sequence to be connected to the sealing needle;
[0030] The lower plug is embedded in the bottom of the logging instrument housing and is sealed and connected to the logging instrument housing.
[0031] In a possible implementation, the invention further includes: a retaining spring;
[0032] The plug portion is provided with a rotating pin extending toward the lower plug, the rotating pin is in contact with the inner part of the logging tool housing, and a rotating hole is provided on the side wall of the rotating pin, a rotating groove is provided on the inner wall of the logging tool housing, the rotating groove is arranged along the circumferential direction of the logging tool housing, and the rotating hole is in contact with and communicated with the rotating groove;
[0033] The clamping spring is arranged inside the rotating pin, corresponding to the rotating hole and the rotating pin, and the extending direction of the clamping spring is the same as the opening direction of the rotating hole, extending to the inside of the rotating groove.
[0034] In a possible implementation, the plug portion is sealed and connected to a housing of the logging tool.
[0035] The beneficial effects of the sealed rubber sleeve-free bridle logging instrument of the embodiment of the present application are as follows: when the logging instrument housing is a sealed space, a balancing sleeve is arranged inside the logging instrument housing, the balancing sleeve is arranged outside the tension rod joint, and the logging instrument housing is provided with a first pressure relief hole and a second pressure relief hole which penetrate the logging instrument housing horizontally above and below the installation position of the balancing sleeve, respectively, so that two balancing spaces are formed between the balancing sleeve, the logging instrument housing and the tension rod joint. When the pressure outside the logging instrument housing is too large, by dragging the top tension rod joint, the internal tension between the logging instrument housing, the balancing sleeve and the tension rod joint can be balanced due to the two first pressure relief holes and the two second pressure relief holes. When the logging instrument housing is sealed, the tension rod joint can move relative to the logging instrument housing, so that the tension rod joint can break the tension rod, pull it out from the inside of the logging instrument housing, and carry the torpedo assembly on the top out of the logging instrument housing, thereby completing the recovery of the torpedo assembly. In this way, the logging instrument housing of the present application can avoid the pressure generated by the seal between the tension rod joint and the inside of the logging instrument housing while ensuring internal sealing, and the tension rod joint cannot be pulled out from the sealed logging instrument housing, thereby sealing the inside of the logging instrument housing and avoiding sludge from entering the logging instrument housing and destroying the wire. The tension rod can also be broken in time, so that the tension rod joint is separated from the logging instrument housing and the torpedo assembly is pulled out of the mine.
[0036] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.
[0038] Figure 1 A schematic diagram showing a sealed rubber sleeve-free bridle logging tool according to an embodiment of the present application;
[0039] Figure 2 A top partial schematic diagram of a sealed rubber sleeve-free bridle logging tool according to an embodiment of the present application is shown;
[0040] Figure 3 A partial bottom schematic diagram of a sealed rubber sleeve-free bridle logging tool according to an embodiment of the present application is shown;
[0041] Figure 4 A schematic diagram showing a sealed rubber sleeve-free bridle logging instrument and a pulling device according to an embodiment of the present application. DETAILED DESCRIPTION
[0042] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.
[0043] Among them, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0045] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0046] In addition, in order to better illustrate the present application, numerous specific details are provided in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.
[0047] See also Figure 1 , Figure 2 and Figure 3The sealed rubber sleeve-free bridle logging instrument housing of the embodiment of the present application comprises: a logging instrument housing 100, a balancing sleeve 300, a tension rod joint 200, a tension rod 400 and a pressure-bearing nut 500. The logging instrument housing 100 is hollow inside and open at both ends, and a first pressure relief hole 351 and a second pressure relief hole 361 are respectively opened at the upper and lower positions of the middle part of the logging instrument. The balancing sleeve 300 is arranged inside the logging instrument housing 100, between the first pressure relief hole 351 and the second pressure relief hole 361. The balance sleeve 300 is provided with a balance hole extending therethrough in the axial direction. The top of the tension rod joint 200 is suitable for being provided with a torpedo assembly, and the tension rod joint 200 is embedded in the top opening of the logging instrument, and the bottom passes through the balance hole. The tension rod 400 is connected to the bottom of the tension rod joint 200 and is connected to the logging instrument housing 100. The pressure-bearing nut 500 is arranged inside the logging instrument housing 100 and is fixedly connected, and the pressure-bearing nut 500 abuts against the tension rod 400.
[0048] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 When the logging tool housing 100 is a sealed space, a balancing sleeve 300 is arranged inside the logging tool housing 100, and the balancing sleeve 300 is sleeved on the outside of the tension rod joint 200, and the logging tool housing 100 is provided with a first pressure relief hole 351 and a second pressure relief hole 361 which horizontally penetrate the logging tool housing 100 above and below the installation position of the balancing sleeve 300, respectively, so that two balancing spaces are formed between the balancing sleeve 300, the logging tool housing 100 and the tension rod joint 200. When the pressure outside the logging tool housing 100 is too high, by dragging the top tension rod joint 200, the internal tension among the logging tool housing 100, the balance sleeve 300 and the tension rod joint 200 can be balanced due to the two first pressure relief holes 351 and the two second pressure relief holes 361. When the logging tool housing 100 is sealed, the tension rod joint 200 can move relative to the logging tool housing 100, so that the tension rod joint 200 can break the tension rod 400, pull it out from the inside of the logging tool housing 100, and carry the top torpedo assembly out of the logging tool housing 100, thereby completing the recovery of the torpedo assembly. In this way, the logging tool housing 100 of the present application can prevent the tension rod joint 200 from being pulled out from the sealed logging tool housing 100 due to the pressure generated by the seal between the tension rod joint 200 and the inside of the logging tool housing 100 while ensuring the internal seal, thereby sealing the inside of the logging tool housing 100 and preventing sludge from entering the logging tool housing 100 and damaging the wire. The tension rod 400 can also be broken in time to separate the tension rod joint 200 from the logging tool housing 100 and pull the torpedo assembly out of the mine.
[0049] In one specific embodiment, see Figure 2The cross section of the tension rod joint 200 is a "convex"-shaped structure, including a cable end 210 with a larger cross section and a tension end 220 with a smaller cross section. When the tension rod joint 200 is embedded in the top of the logging tool housing 100, the outer wall of the cable end 210 of the tension rod joint 200 is in contact with the inner wall of the logging tool housing 100, so that one end of the logging tool housing 100 is a sealed structure, and the tension end 220 of the tension rod joint 200 is inserted into the balance hole opened through the balance sleeve 300, and extends beyond the balance sleeve 300 to the inside of the logging tool housing 100. The cable end 210 of the tension rod joint 200 is provided with a sealing hole, which is embedded and fixed with the torpedo assembly.
[0050] In this embodiment, refer to Figure 2 After the installation, the tension rod joint 200 has its tension end 220 corresponding to the first pressure relief hole 351 and the second pressure relief hole 361 opened in the middle of the logging tool housing 100, so as to balance the internal pressure of the sealed logging tool housing 100. There are four first pressure relief holes 351, which penetrate the logging tool housing 100 along the axial direction perpendicular to the logging tool housing, and there are four second pressure relief holes 361, which penetrate the logging tool housing 100 along the axial direction perpendicular to the logging tool housing 100.
[0051] In this embodiment, refer to Figure 2 The tension rod joint 200 is a hollow structure, and a fixing hole is provided at a position of the cable end 210 of the tension rod joint 200 away from the tension end 220. The direction of the fixing hole is the same as the length direction of the tension rod joint 200, and the fixing hole extends to the middle position of the tension rod joint 200, so that the torpedo assembly can be fixedly installed at the fixing hole position of the tension rod joint 200. In addition, a wiring hole 240 is provided at the middle position of the side wall of the tension rod joint 200, so that the outside is connected to the inside of the tension rod joint 200 through the wiring hole 240.
[0052] In one specific embodiment, see Figure 2 and Figure 3 The balancing sleeve 300 is fixedly installed inside the logging instrument housing 100 and is fixed by anti-rotation nails. The balancing sleeve 300 is a hollow structure with openings at both ends, so that the tension end 220 of the tension rod joint 200 can be inserted into the balancing hole opened in the balancing sleeve 300, and a wiring space 320 is reserved in the middle position hole of the balancing sleeve 300. The wiring space 320 is arranged along the circumferential direction of the balancing sleeve 300, covering part of the tension end 220 of the tension rod joint 200, and corresponding to and connected with the wiring hole 240 opened in the tension rod joint 200.
[0053] In this embodiment, a wiring groove 330 is also opened on the balancing sleeve 300. The wiring groove 330 is arranged along the axial direction of the balancing sleeve 300, and is connected from the end of the balancing sleeve 300 adjacent to the tension rod 400 to the wiring space 320 inside the balancing sleeve 300, so that the wiring groove 330 can be connected with the interior of the tension rod joint 200 through the wiring hole 240.
[0054] In this embodiment, refer to Figure 2 and Figure 3 , further comprising: a threading tube 340, which is used to connect the wiring groove 330 to the bottom space of the logging tool housing 100. Specifically, one end of the threading tube 340 is embedded in the wiring groove 330, and the other end passes through the second balancing space 360 to the bottom of the logging tool housing 100, so as to realize the connection between the tension rod 400 and the bottom of the logging tool housing 100.
[0055] Among them, see Figure 3 , the position of the pressure nut 500 is set inside the logging tool shell, and the mounting part 110 extends toward the middle position, and the mounting part 110 is an annular structure, connecting the top and bottom of the logging tool shell 100, and the inner side of the mounting part 110 of the annular structure is provided with an internal thread, which is convenient for sealing and threading the pressure nut 500 with the logging tool shell 100. Therefore, a through hole is provided on the mounting part 110, and the opening direction and opening position of the through hole match the wiring groove 330, so that the two ends of the threading tube 340 are respectively connected to the wiring groove 330 and the through hole provided on the mounting part 110, so as to sequentially connect the top of the tension rod joint 200, the interior of the tension rod joint 200, the wiring hole 240, the wiring space 320, the wiring groove 330, the threading tube 340 and the through hole of the mounting part 110, and when the interior of the logging tool shell 100 is sealed, the top and bottom of the logging tool shell 100 are connected, which is convenient for wiring.
[0056] In one specific embodiment, see Figure 3 The inner side of the mounting portion 110 is provided with an internal thread, so that the pressure nut 500 can be connected to the inside of the logging tool housing 100 in a threaded connection manner. One end of the tension rod 400 is provided with an internal thread, and the other end is provided with an internal thread, and the tension end 220 of the tension rod joint 200 is provided with a tension rod 400 mounting hole, and the tension rod 400 mounting hole is provided with an internal thread, so that the tension rod joint 200 can be threadedly connected to one end of the tension rod 400, and the other end of the tension rod 400 is threadedly connected to the pressure nut 500.
[0057] In one specific embodiment, see Figure 3 The logging tool housing 100 further includes a lower plug 800 , which is embedded in the bottom of the logging tool housing 100 and is used to seal the bottom of the logging tool housing 100 .
[0058] From the above, see Figure 1 , Figure 2 and Figure 3 In a specific embodiment, the installation process of the logging tool housing 100 is as follows: first, the torpedo assembly is sealed and embedded in the fixing hole of the tension rod joint 200, and the tension rod 400 is installed in the tension rod 400 installation hole of the tension rod joint 200 by threaded connection. Then, the tension rod joint 200 installed with the torpedo assembly and the tension rod 400 is inserted into the inside of the logging tool housing 100 from the top of the logging tool housing 100 with one end installed with the tension rod 400, and the cable end 210 of the tension rod joint 200 is close to and sealed with the inside of the logging tool housing 100, and the threading tube 340 is used to connect the installation part 110 of the logging tool and the wiring groove 330 of the balance sleeve 300. Secondly, the pressure nut 500 is used to connect with the tension rod 400 from the bottom of the logging tool housing 100 by threaded connection, and the installation part 110 of the logging tool housing 100 and the pressure nut 500 are fixed by bolts. Secondly, the wires of the torpedo assembly are sequentially passed through the top of the tension rod joint 200, the inside of the tension rod joint 200, the wiring hole 240, the wiring space 320, the wiring groove 330, the threading tube 340 and the through hole of the installation part 110, and then to the bottom of the logging instrument, the wires are connected to the sealing needle 600 of the plug assembly 610, and the plug assembly 610 is sealed and installed inside the logging instrument housing 100. Finally, the lower plug 800 is used to seal and install at the bottom of the logging instrument housing 100.
[0059] Among them, it should be noted that one end of the balancing sleeve 300 in the axial direction is spaced apart from the cable end 210 of the tension rod joint 200 by a first preset distance, and the cable end 210 of the tension rod 400, the balancing sleeve 300 and the logging instrument housing 100 form a first balancing space 350, and the first balancing space 350 is connected to the first pressure relief hole 351, and the other end of the balancing sleeve in the axial direction is spaced apart from the tension end 220 of the tension rod joint 200 by a second preset distance, and the tension end 220 of the tension rod 400, the balancing sleeve 300 and the logging instrument housing 100 form a second balancing space 360, and the second balancing space 360 is connected to the second pressure relief hole 361. In this way, when the tension rod joint 200 is axially displaced relative to the logging tool housing 100, it will be "unable to be pulled open" due to the downhole pressure. The balance sleeve 300 cooperates with the first balance space 350, the second balance space 360, the first pressure relief hole 351 and the second pressure relief hole to achieve "volume compensation" inside the logging tool housing 100, so that the tension rod joint 200 can achieve "the same amount of input as the amount of output" relative to the logging tool housing 100, ensuring that the total volume of all components in the mud does not change and the pressure is balanced, so that the tension rod joint 200 can still drag the tension rod 400 when the inside of the logging tool housing 100 is sealed.
[0060] For further information, see Figure 2The first preset distance is equal to the second preset distance, ensuring that the tension rod joint 200 can achieve "more out, more in" relative to the first balance space 350 and the second balance space 360. The threading tube 340 passes through the second balance space 360 and is connected to the mounting portion 110 of the logging tool housing 100 to ensure the sealing of the wiring inside the logging tool housing 100.
[0061] A sealed rubber sleeve-free bridle logging instrument comprises a sealed rubber sleeve-free bridle logging instrument housing 100, and also comprises: a torpedo assembly, a wire, a sealing needle 600 and a plug assembly 610. The torpedo assembly is embedded in the top opening of the tension rod 400 assembly, the plug assembly 700 is embedded in the interior of the logging instrument housing 100, and is located below the tension rod 400. The sealing needle 600 is arranged in the plug assembly 700. One end of the wire is connected to the torpedo assembly, and the other end passes through a fixing hole, a wiring hole 240, a wiring groove 330 and a threading tube in sequence to be connected to the sealing needle 600.
[0062] In one specific embodiment, see Figure 3 , and further includes: a plug assembly 700, which is sealed and arranged inside the logging tool housing 100, and is located between the plug assembly 610 and the lower plug 800.
[0063] In a specific embodiment, the torpedo assembly includes: a protective cap 1100, a torpedo shell 1300, a sealing plug 1200, a first sealing ring, a second sealing ring, a wire clamp ring, and a white seven-core socket. The torpedo shell 1300 is a hollow structure with two ends open, embedded in the cable end 210 of the tension rod joint 200, sealed with a first sealing ring, the sealing plug 1200 and the white seven-core socket are arranged inside the torpedo shell 1300, the wire clamp ring is arranged at the end of the torpedo shell 1300, and the torpedo shell 1300 is connected to the inside of the tension rod joint 200. The protective cap 1100 is arranged at the other end of the torpedo shell 1300, and a second sealing ring is arranged between the protective cap 1100 and the torpedo shell 1300 for sealing.
[0064] Among them, see Figure 2 The torpedo shell 1300 is embedded in the cable end 210 of the tension rod joint 200, and the position where the torpedo shell 1300 is embedded in the tension rod joint 200, and a matching first anti-rotation hole 1400 is opened at the corresponding position of the tension rod joint 200, and is fixed with an anti-rotation nail.
[0065] In a specific embodiment, a sealing groove for installing a sealing ring is provided inside the balancing sleeve 300, and there are more than two sealing grooves, which are respectively arranged above and below the balancing space of the balancing sleeve 300, and a sealing ring is arranged inside the sealing groove. When the tension rod joint 200 drags the tension rod 400, when the tension rod joint 200 moves relative to the balancing sleeve 300, the sealing inside the logging tool housing 100 can also be ensured at this time. In order to ensure the sealing inside the logging tool housing 100, sealing rings are arranged between the pressure nut 500 and the mounting portion 110 of the logging tool housing 100, between the plug assembly 700 and the logging tool housing 100, and between the plug assembly 610 and the logging tool housing 100, so as to improve the internal sealing of the logging tool housing 100.
[0066] In this embodiment, anti-rotation pins are embedded in the corresponding positions of the balancing sleeve 300 and the logging tool housing 100, which can relatively fix the balancing sleeve 300 and the logging tool housing 100 and prevent the balancing sleeve 300 from rotating inside the logging tool housing 100.
[0067] In one specific embodiment, see Figure 4 The plug assembly 700 has a rotating pin 710 extending in the direction of the lower plug. The axial direction of the rotating pin 710 is the same as the axial direction of the logging tool housing 100. The rotating pin 710 is in contact with the inside of the logging tool housing 100, and a rotating hole is provided on the side wall of the rotating pin 710. A rotating groove 720 is provided on the inner wall of the logging tool housing 100. The rotating groove 720 is arranged along the circumferential direction of the logging tool housing 100. The rotating hole is in contact with and connected to the rotating groove 720. The retaining spring 711 is arranged inside the rotating pin 710, corresponding to the rotating hole and the rotating pin 710, and the extending direction of the retaining spring 711 is the same as the opening direction of the rotating hole, and extends to the inside of the rotating groove 720. When the tension rod needs to be replaced, the lower plug, the sealing needle, the plug assembly 700 and the plug assembly 610 can be quickly disassembled to disassemble and install the tension rod located in the middle. Specifically, the sealing needle, the plug assembly 700 and the plug assembly 610 are taken out by using the pulling device 2000, and the pulling device 2000 is inserted into the interior of the logging instrument housing 100 through the bottom of the logging instrument housing 100. The pulling rod 400 on the pushing member of the pulling device 2000 is inserted into the hole of the rotating pin 710, so that the retaining spring 711 undergoes elastic deformation and is compressed out from the inside of the rotating groove 720, thereby promoting the rotating pin 710 to unlock the logging instrument housing 100, and then the handle 2200 on the pulling device 2000 is rotated to rotate the pulling device 2000 and lock it with the logging instrument housing 100. After the handle 2200 is fixed to the plug assembly 610, the handle 2200 of the pulling device 2000 is pulled to quickly take out the sealing needle, the plug assembly 700 and the plug assembly 610.
[0068] In this embodiment, the plug 610 component is embedded in the plug assembly 700.
[0069] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A sealed rubber sleeve-free bridle logging tool housing, It is characterized in that include: Logging tool housing, balancing sleeve, tension rod joint, tension rod and pressure nut; The logging instrument housing is hollow inside and open at both ends, and a first pressure relief hole and a second pressure relief hole are respectively provided at the upper and lower parts of the middle of the logging instrument; The balancing sleeve is arranged inside the housing of the logging instrument, between the first pressure relief hole and the second pressure relief hole, and the balancing sleeve is provided with a penetrating balancing hole in the axial direction; The top of the tension rod joint is suitable for being provided with a torpedo assembly, and the tension rod joint is embedded in the top opening of the logging instrument, and the bottom passes through the balance hole; The tension rod is connected and arranged at the bottom of the tension rod joint and is connected to the well logging tool housing; The pressure-bearing nut is arranged inside the housing of the logging instrument and is fixedly connected thereto, and the pressure-bearing nut abuts against the tension rod.
2. The sealed rubber sleeve-free bridle logging tool housing according to claim 1, It is characterized in that The cross section of the tension rod joint is a "convex" shaped structure; The end with a larger cross section of the tension rod joint is a cable end, and the cable end is in contact with the inner wall of the logging tool housing; The end with a smaller cross-section of the tension rod joint is a tension end, and the tension end passes through the interior of the balancing sleeve. The tension ends of the tension rod joint correspond to the first pressure relief hole and the second pressure relief hole respectively.
3. The sealed rubber sleeve-free bridle logging tool housing according to claim 2, It is characterized in that The tension rod joint is a hollow structure, and a sealing hole is provided at the cable end of the tension rod joint, the sealing hole is communicated with the interior of the tension rod joint, and the torpedo assembly is embedded in the sealing hole; A wiring hole is provided on the side wall of the tension end of the tension rod joint, and the wiring hole is communicated with the interior of the tension rod joint.
4. The sealed rubber sleeve-free bridle logging tool housing according to claim 3, It is characterized in that Also includes: Threading tube; The balancing sleeve is provided with a wiring groove, and two ends of the wiring groove are respectively connected with the wiring hole and the second pressure relief hole; One end of the threading tube is embedded in the wiring groove, and the other end extends to the inside of the logging instrument housing.
5. The sealed rubber sleeve-free bridle logging tool housing according to claim 1, It is characterized in that There are four first pressure relief holes, which penetrate the casing of the well logging tool in an axial direction perpendicular to the casing of the well logging tool; There are four second pressure relief holes, which penetrate the casing of the well logging tool along an axial direction perpendicular to the casing of the well logging tool.
6. The sealed rubber sleeve-free bridle logging tool housing according to claim 2, It is characterized in that A tension rod mounting hole is provided at the tension end of the tension rod joint, an internal thread is provided inside the tension rod mounting hole, an external thread is provided at one end of the tension rod, and the tension rod is threadedly connected to the tension rod mounting hole.
7. The sealed rubber sleeve-free bridle logging tool housing according to claim 4, It is characterized in that One end of the balancing sleeve in the axial direction is spaced apart from the cable end of the tension rod joint by a first preset distance, and the cable end of the tension rod, the balancing sleeve and the logging tool housing form a first balancing space, and the first balancing space is communicated with the first pressure relief hole; The other end of the balancing sleeve in the axial direction is spaced apart from the tension end of the tension rod joint by a second preset distance, and the tension end of the tension rod, the balancing sleeve and the logging tool housing form a second balancing space, and the second balancing space is communicated with the second pressure relief hole; The threading tube passes through the second balancing space.
8. A sealed rubber sleeve-free bridle logging tool, comprising the sealed rubber sleeve-free bridle logging tool housing according to any one of claims 1 to 7, It is characterized in that Also includes: Torpedo components, wires, sealing pins, plug assemblies and lower plugs; The torpedo assembly is embedded in the cable end of the tension rod joint; The plug part is embedded in the housing of the logging instrument and is located below the pressure nut; The sealing needle is arranged on the plug part; One end of the wire is connected to the torpedo assembly, and the other end passes through the fixing hole, the wiring hole, the wiring groove and the threading tube in sequence to be connected to the sealing needle; The lower plug is embedded in the bottom of the logging instrument housing and is sealed and connected to the logging instrument housing.
9. The sealed rubber sleeve-free bridle logging tool according to claim 8, It is characterized in that Also includes: Circlip; The plug portion is provided with a rotating pin extending toward the lower plug, the rotating pin is in contact with the inner portion of the logging tool housing, a rotating hole is provided on the side wall of the rotating pin, a rotating groove is provided on the inner wall of the logging tool housing, the rotating groove is arranged along the circumferential direction of the logging tool housing, and the rotating hole is in contact with and communicated with the rotating groove; The clamping spring is arranged inside the rotating pin, corresponding to the rotating hole and the rotating pin, and the extending direction of the clamping spring is the same as the opening direction of the rotating hole, extending to the inside of the rotating groove.
10. The sealed rubber sleeve-free bridle logging tool according to claim 8, It is characterized in that The plug part is sealed and connected to the housing of the logging instrument.