Logging headstall tension bar
By using weak columns and hydraulic cylinders in the logging bridle tension bar to achieve fast disassembly and snap-on connection, the problems of operation troubles and cable wear in the prior art are solved, and the working efficiency and the practicality of the equipment are improved.
Patent Information
- Application Number
- CN202421154358.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-24
AI Technical Summary
When the instrument is stuck, the existing logging bridle tension rod needs to be disconnected from the base by rotating the bearing shaft, which is troublesome and inefficient. The screw connection structure will cause wear on the cable and affect use.
Use a weak point cylinder to replace the weak point screw, and set a card slot at the bottom of the bearing shaft. The card block is controlled away from the fixed block through the hydraulic cylinder to achieve rapid disassembly between the bearing shaft and the weak point cylinder. The clamping connection method is adopted to avoid screws The effect of connection rotation on the cable.
Improves work efficiency, simplifies operation, avoids cable wear, and enhances the practicality and stability of the equipment.
Smart Images
Figure CN222207814U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of well logging accessories, in particular to a well logging bridle tension rod. Background Art
[0002] The tension rod in the cable head is a weak point device set up during the logging construction process. Its purpose is that when the instrument string is stuck in the well, the cable may be broken and fall into the well during the unblocking process, which will complicate the accident. The setting of the tension rod enables the cable to release the instrument smoothly when needed to avoid breaking the cable.
[0003] After searching, the patent with application number 201821829786.8 discloses a weak point screw replaceable logging bridle tension rod. The bearing shaft, weak point screw and separate insulating sleeve of the patent all adopt a split replaceable structure. When the weak point screw is broken due to a card in the well during logging, or when the fixing rod or the weak point screw of the logging bridle tension rod is deformed and the high-temperature insulating rubber surface is broken, the fixing rod, the weak point screw or the corresponding insulating sleeve can be replaced separately, which will not cause the logging bridle tension rod to be scrapped and need to be replaced as a whole. However, due to the screw connection between the weak point screw 2 and the bearing shaft 3, in actual use, when the instrument is stuck in the well, it is necessary to use equipment to rotate the bearing shaft 3 to achieve separation from the base 1. This method is not only cumbersome to operate, but also cannot make the bearing shaft 3 and the base 1 separate quickly, and has low work efficiency. Moreover, when the bearing shaft 3 rotates, it will cause wear to the cable, affecting its later use. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the utility model provides a logging bridle tension rod, which adopts a weak point column instead of a weak point screw, and opens a card slot at the bottom end of the load-bearing shaft, and a card connection method is adopted between the load-bearing shaft and the weak point column. When the instrument is stuck in the well, the hydraulic cylinder is controlled to shrink so that the card block is away from the fixed block, thereby realizing rapid disassembly between the weak point column and the load-bearing shaft, greatly improving work efficiency, and avoiding the influence of the screw connection structure on the cable when rotating, and the utility model is highly practical.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A logging bridle tension rod, comprising a base, a weak point column fixed in the upper inner cavity of the base, the upper end of the weak point column extending to the outside of the upper end of the base, a load-bearing shaft detachably mounted on the upper end of the weak point column, a rubber sleeve provided on the outer side of the load-bearing shaft, a sealing ring provided between the rubber sleeve and the base; a slot is provided in the middle of the bottom end of the load-bearing shaft, the upper end of the weak point column is engaged in the slot, and fixed blocks are fixed on both sides of the left and right sides of the slot, the fixed blocks are triangular in structure, and a left-right symmetrical slide groove is provided inside the upper end of the load-bearing shaft. A hydraulic cylinder is installed inside, and the telescopic end of the hydraulic cylinder is fixed with a card block which is slidably connected in the slide groove. The card block is carded on the upper side of the fixed block. A weak point column is used instead of a weak point screw, and a card slot is opened at the bottom end of the load-bearing shaft, and a card connection method is adopted between the load-bearing shaft and the weak point column. When the instrument is stuck in the well, the hydraulic cylinder is controlled to shrink, so that the card block is away from the fixed block, thereby realizing rapid disassembly between the weak point column and the load-bearing shaft, greatly improving work efficiency, and avoiding the influence of the screw structure on the cable when rotating, and the practicability is strong.
[0007] Furthermore, limiting grooves are provided on both sides of the left and right sides of the card slot, and the fixed blocks are respectively located in the limiting grooves. Limiting plates are provided on both sides of the left and right sides of the weak point column for matching and sliding connection in the limiting grooves, and the sliding grooves extend to the outside of the limiting plates. By setting the limiting grooves and limiting plates, the load-bearing shaft and the weak point column can be easily installed, and the stability of use is guaranteed while ensuring that the card block can match and engage with the fixed block.
[0008] Compared with the prior art, the beneficial effects of the utility model are: a weak point column is used instead of a weak point screw, and a card slot is opened at the bottom end of the load-bearing shaft, and a card-connection method is adopted between the load-bearing shaft and the weak point column. When the instrument is stuck in the well, the hydraulic cylinder is controlled to shrink so that the card block is away from the fixed block, thereby realizing rapid disassembly between the weak point column and the load-bearing shaft, greatly improving work efficiency, and avoiding the influence of the screw connection structure on the cable when rotating. It is highly practical, and by setting the limit groove and the limit plate, it is convenient to install the load-bearing shaft and the weak point column, and the stability of use is guaranteed while ensuring that the card block can be carded with the fixed block. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the utility model.
[0010] Figure 2 It is a schematic diagram of the connection structure between the weak point column and the load-bearing shaft of the utility model.
[0011] In the figure: 1 base, 2 weak point column, 3 load-bearing shaft, 4 sealing ring, 5 rubber sleeve, 6 slot, 7 fixed block, 8 slide groove, 9 hydraulic cylinder, 10 block, 11 limit slot, 12 limit plate. DETAILED DESCRIPTION
[0012] 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 them. 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.
[0013] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example
[0014] See attached Figure 1-2 As shown, a logging bridle tension rod comprises a base 1, a weak point column 2 is fixed in the upper inner cavity of the base 1, the upper end of the weak point column 2 extends to the upper outer end of the base 1, a load-bearing shaft 3 is detachably mounted on the upper end of the weak point column 2, a rubber sleeve 5 is arranged on the outer side of the load-bearing shaft 3, a sealing ring 4 is arranged between the rubber sleeve 5 and the base 1; a card slot 6 is provided in the middle of the bottom end of the load-bearing shaft 3, the upper end of the weak point column 2 is engaged in the card slot 6, and a fixing block 7 is fixed on both sides of the card slot 6, the fixing block 7 is in a triangular structure, and a left-right symmetrical slide groove 8 is provided inside the upper end of the load-bearing shaft 3, and a A hydraulic cylinder 9 is provided at the telescopic end thereof with a card block 10 which is slidably connected in the slide groove 8. The card block 10 is card-connected to the upper side of the fixed block 7. A weak point column 2 is used instead of a weak point screw, and a card slot 6 is provided at the bottom end of the load-bearing shaft 3. A card-connection type connection is adopted between the load-bearing shaft 3 and the weak point column 2. When the instrument is stuck in the well, the hydraulic cylinder 9 is controlled to contract so that the card block 10 is moved away from the fixed block 7, thereby realizing rapid disassembly between the weak point column 2 and the load-bearing shaft 3, greatly improving work efficiency, and avoiding the influence of the screw connection structure on the cable when rotating, and having strong practicality.
[0015] Limiting grooves 11 are provided on both sides of the card slot 6, and the fixed blocks 7 are respectively located in the limiting grooves 11. Limiting plates 12 are provided on both sides of the weak point column 2 for sliding connection in the limiting grooves 77. The slide grooves 8 extend to the outside of the limiting plates 12. By setting the limiting grooves 11 and the limiting plates 12, it is convenient to install the load-bearing shaft 3 and the weak point column 2, and the stability of use is guaranteed while ensuring that the card block 10 can cooperate with the fixed block 7 for engagement.
[0016] Working principle: insert the weak point column 2 of the base 1 into the slot 6 at the bottom end of the load-bearing shaft 3. When the bottom end of the load-bearing shaft 3 contacts the upper side of the base 1, the hydraulic cylinder 9 extends, thereby driving the block 10 to move outward until the block 10 is engaged with the fixed block 7. At this time, the fixation between the weak point column 2 and the load-bearing shaft 3 is completed, and then the sealing ring 4 is sleeved on the base 1, and then the rubber sleeve 5 is sleeved on the outside of the weak point column 2. When the instrument is stuck in the well, the hydraulic cylinder 9 is controlled to contract, so that the block 10 is away from the fixed block 7, thereby realizing the rapid disassembly between the weak point column 2 and the load-bearing shaft 3, greatly improving the work efficiency, and avoiding the influence of the screw structure on the cable when rotating, and having strong practicality. By setting the limit groove 11 and the limit plate 12, it is convenient to install the load-bearing shaft 3 and the weak point column 2, and the stability of use is also guaranteed. At the same time, it can ensure that the block 10 can be engaged with the fixed block 7.
[0017] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.
[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A logging bridle tension rod, comprising a base, a weak point column fixed in the upper inner cavity of the base, the upper end of the weak point column extending to the outer portion of the upper end of the base, a load-bearing shaft detachably mounted on the upper end of the weak point column, a rubber sleeve provided on the outer side of the load-bearing shaft, a sealing ring provided between the rubber sleeve and the base, Features: A slot is provided in the middle of the bottom end of the load-bearing shaft, and the upper end of the weak point column is engaged in the slot. Fixed blocks are fixed on both sides of the left and right sides of the slot, and the fixed blocks are triangular in structure. A left-right symmetrical sliding groove is provided inside the upper end of the load-bearing shaft, and hydraulic cylinders are installed in the sliding grooves. The telescopic ends of the hydraulic cylinders are fixed with blocks that are slidably connected in the sliding grooves, and the blocks are engaged in the upper side of the fixed blocks.
2. A logging bridle tension rod according to claim 1, Features: The left and right sides of the card slot are both provided with limiting grooves, the fixed blocks are respectively located in the limiting grooves, the left and right sides of the weak point column are both provided with limiting plates that are slidably connected in the limiting grooves, and the sliding grooves extend to the outside of the limiting plates.