Piston component for decontamination in steel wire well testing operation
By forming side discharge holes on the side wall of the main hole of the piston member, the jamming problem caused by dirt accumulation in steel wire well test operations is solved, and the effective discharge of dirt is achieved, reducing the cost and risk of understanding the jamming, and improving production safety and efficiency.
Patent Information
- Application Number
- CN202420488479.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-13
AI Technical Summary
During the steel wire well test operation, the dirt attached to the wire when the steel wire rises cannot be completely filtered by the anti-blast box packaging, resulting in dirt accumulation in the piston member, causing the steel wire to be stuck, requiring a lot of manpower and material resources to unblock, which is high risk And it is costly.
A piston member for decontamination of steel wire well test operations is designed, and at least one side discharge hole is formed on the side wall of the main hole so that dirt is discharged from the side discharge hole to avoid accumulation of dirt.
Through the design of side discharge holes, dirt can be effectively discharged, avoiding steel wires from being stuck, reducing the need and cost of understanding the card, and improving production safety and efficiency.
Smart Images
Figure CN222478686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of piston structures, in particular to a piston component used for decontamination in a steel wire well testing operation. Background Art
[0002] The reservoir conditions of oil and gas wells are complex. During the steel wire well testing operation, mud, residual acid, foaming agent and unknown dirt are attached to the steel wire as it rises. These dirt will pass through the blowout preventer box when the steel wire rises. The packing in the blowout preventer box cannot completely filter out these dirt, and then they enter the piston component of the blowout preventer box along with the rising steel wire.
[0003] At present, the commonly used piston components have narrow internal channels and no drainage holes, and dirt is easily accumulated in the piston component channels. When the dirt accumulates to a certain extent, it will cause the wire to get stuck, and then a large amount of manpower and material resources are needed to unblock it, which is not only time-consuming but also high-risk in operation. Summary of the invention
[0004] The utility model aims to provide a piston component for removing dirt in a steel wire well testing operation, wherein at least one side discharge hole is formed on the side wall of the main hole, so that dirt on the steel wire rope can be discharged from the side discharge hole, so that the steel wire rope can pass smoothly through the piston component for a long time, avoiding the use of a large amount of manpower and material resources for unblocking, and reducing production costs.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme.
[0006] A piston component for decontamination in a steel wire well testing operation comprises a piston and a piston rod. The piston is connected to one end of the piston rod. A main hole and a piston through hole are respectively formed on the piston and the piston rod. The piston through hole is communicated with the main hole. At least one side row hole is formed on the side wall of the main hole. The main hole and the piston through hole are used for the steel wire rope to pass through.
[0007] The utility model adopts the above-mentioned scheme, by forming a main hole and a piston through hole on the piston and the piston rod respectively, and making the piston through hole communicate with the main hole, so that when the rising wire rope passes through the main hole, the entrance edge of the main hole blocks part of the dirt, and at least one side discharge hole is formed on the side wall of the main hole, so that the dirt on the wire rope can be further discharged from the side discharge hole, which makes it easier for the wire rope to pass smoothly through the piston component for a long time, avoiding the use of a large amount of manpower and material resources for unblocking, reducing production costs, and improving production safety.
[0008] Preferably, a separation ring is formed at one end of the piston rod, and the separation ring is a convex ring protruding from the outer circumference of the piston rod, and the separation ring cooperates with the step of the inner cavity of the blowout preventer box.
[0009] In this way, a separation ring is formed at one end of the piston rod, and the separation ring cooperates with the step of the inner cavity of the blowout preventer box to position and seal the piston rod, dividing the blowout preventer box into two cavities to prevent dirt from entering the upper cavity of the inner cavity of the blowout preventer box.
[0010] Preferably, the cross-section of the piston through hole is in the shape of a frustum of a cone, and the bottom of the frustum of a cone is located at the outlet of the piston through hole.
[0011] In this way, by setting the cross-section of the piston through hole to a frustum of a cone and positioning the bottom of the frustum of a cone at the outlet of the piston through hole, the contact area between the piston through hole and the wire rope is reduced, thereby facilitating the ascent of the wire rope.
[0012] Preferably, a mounting hole is also formed on the piston rod, and the mounting hole is located below the top of the truncated cone, and cooperates with the piston through the mounting hole.
[0013] In this way, by setting the mounting hole, it is convenient for the mounting hole to cooperate with the piston, the piston is positioned, and then the main hole and the piston through hole are positioned, thereby reducing the resistance of the wire rope when it rises.
[0014] Preferably, the main hole is coaxial with the piston through hole.
[0015] In this way, the main hole is coaxial with the piston through hole, so that the wire rope can rise straightly and the resistance of the wire rope rising is reduced.
[0016] Preferably, a connecting portion is formed on the piston, the outer periphery of the connecting portion matches the mounting hole, and the bottom of the connecting portion abuts against the bottom of the mounting hole.
[0017] In this way, by arranging the connection portion to cooperate with and abut against the mounting hole, the piston can be easily positioned axially and radially.
[0018] Preferably, an avoidance portion is formed on the piston rod, and the avoidance portion adopts a conical structure.
[0019] In this way, the avoidance portion with a conical structure is formed on the piston rod, thereby preventing the outer periphery of the piston from interfering with the piston rod.
[0020] Preferably, the side row holes include a first side row holes and a second side row holes, the first side row holes and the second side row holes penetrate the side wall of the main hole, and are symmetrically arranged with the central axis of the main hole as the axis of symmetry.
[0021] In this way, by forming the first side row holes and the second side row holes symmetrically arranged on the side wall of the main hole, the discharge effect of the dirt is improved.
[0022] Preferably, the plurality of side row holes are evenly distributed in a circle along the central axis of the main hole.
[0023] In this way, by evenly distributing the plurality of side discharge holes in a circle along the central axis of the main hole, it is convenient to evenly discharge the waste at multiple angles, thereby improving the waste discharge effect.
[0024] Preferably, the plurality of side row holes are all arranged obliquely, and the outlet ends of the side row holes are all inclined toward one end of the piston rod.
[0025] In this way, the several side discharge holes are all inclined, and the outlet ends are all inclined toward one end of the piston rod, so that the dirt can be discharged along the rising direction of the wire rope. The pulling force of the wire rope is used to apply force to the dirt, thereby improving the discharge effect.
[0026] The beneficial effects of the utility model are as follows: by forming a main hole and a piston through hole on the piston and the piston rod respectively, and making the piston through hole communicate with the main hole, when the rising wire rope passes through the main hole, the entrance edge of the main hole blocks part of the dirt, and at least one side discharge hole is formed on the side wall of the main hole, so that the dirt on the wire rope is further discharged from the side discharge hole, so that the wire rope can smoothly pass through the piston component for a long time, avoiding the use of a large amount of manpower and material resources for unblocking, reducing production costs, and improving production safety. The side discharge holes are all inclined, and the outlet ends are all inclined toward one end of the piston rod, so that the dirt is discharged in the direction of the rising wire rope, and the pulling force of the wire rope is used to apply force to the dirt, thereby improving the discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural diagram of the utility model;
[0028] Figure 2 This is a piston structure diagram of the utility model;
[0029] Figure 3 This is a structural diagram of the piston rod of the utility model. DETAILED DESCRIPTION
[0030] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described.
[0031] The reference numerals in the drawings of the specification include: piston 1, first side row of holes 11, second side row of holes 12, main hole 13, connecting portion 14, avoidance portion 15, piston rod 2, piston through hole 21, separator ring 22, mounting hole 23, wire rope 3.
[0032] The words "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one", "an" or "the" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. Similarly, words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections or communication connections, whether direct or indirect.
[0033] Embodiment 1, as Figure 1 , Figure 2 and Figure 3 As shown; a piston component for decontamination in a wireline well testing operation, comprising a piston 1 and a piston rod 2, wherein the piston 1 is connected to one end of the piston rod 2, and a main hole 13 and a piston through hole 21 are respectively formed on the piston 1 and the piston rod 2, wherein the piston through hole 21 is communicated with the main hole 13, and at least one side row hole is formed on the side wall of the main hole 13, and the main hole 13 and the piston through hole 21 are used for allowing a wire rope 3 to pass through.
[0034] See also Figure 1 and Figure 3 , a separator ring 22 is formed at one end of the piston rod 2, and the separator ring 22 is a convex ring protruding from the outer periphery of the piston rod 2, and the separator ring 22 cooperates with the step of the inner cavity of the blowout box. In this way, a separator ring 22 is formed at one end of the piston rod 2, and the separator ring 22 cooperates with the step of the inner cavity of the blowout box, so as to position and seal the piston rod 2, divide the blowout box into two cavities, and prevent dirt from entering the upper cavity of the inner cavity of the blowout box.
[0035] See also Figure 1 and Figure 2 The cross section of the piston through hole 21 is a truncated cone, and the bottom of the truncated cone is located at the outlet of the piston through hole 21. In this way, by setting the cross section of the piston through hole 21 to be a truncated cone and positioning the bottom of the truncated cone at the outlet of the piston through hole 21, the contact area between the piston through hole 21 and the wire rope 3 is reduced, and the wire rope 3 is facilitated to rise.
[0036] See also Figure 1 and Figure 3 The piston rod 2 is also provided with a mounting hole 23, which is located below the top of the truncated cone and is matched with the piston 1 through the mounting hole 23. In this way, by providing the mounting hole 23, it is convenient for the mounting hole 23 to match with the piston 1, to position the piston 1, and then to position the main hole 13 and the piston through hole 21, thereby reducing the resistance of the wire rope 3 when it rises.
[0037] See also Figure 1 , the main hole 13 is coaxial with the piston through hole 21. In this way, the main hole 13 is coaxial with the piston through hole 21, so that the steel wire rope 3 can rise straightly, so that the steel wire rope 3 runs straightly during the rising and falling process, and the resistance of the steel wire rope 3 to rise is reduced.
[0038] See also Figure 1 and Figure 2 The piston 1 is formed with a connecting portion 14, the outer periphery of the connecting portion 14 matches with the mounting hole 23, and the bottom of the connecting portion 14 abuts against the bottom of the mounting hole 23. In this way, by arranging the connecting portion 14 to match and abut against the mounting hole 23, the piston 1 is conveniently positioned axially and radially.
[0039] See also Figure 1 and Figure 2 The piston rod 2 is provided with a relief portion 15, which has a conical structure. Thus, the relief portion 15 having a conical structure is formed on the piston rod 2 to prevent the outer periphery of the piston 1 from interfering with the piston rod 2.
[0040] See also Figure 1 and Figure 2 The side row holes include a first side row hole 11 and a second side row hole 12, which penetrate the side wall of the main hole 13 and are symmetrically arranged with the central axis of the main hole 13 as the symmetry axis. In this way, by forming the first side row holes 11 and the second side row holes 12 symmetrically arranged on the side wall of the main hole 13, the discharge effect of the dirt is improved.
[0041] See also Figure 1 and Figure 2 , the plurality of side row holes are evenly distributed in a circle along the central axis of the main hole 13. In this way, by evenly distributing the plurality of side row holes in a circle along the central axis of the main hole 13, it is convenient to evenly discharge the waste at multiple angles, thereby improving the waste discharge effect.
[0042] See also Figure 1 and Figure 2 , several of the side row holes are arranged at an angle, and the outlet ends of the side row holes are inclined toward one end of the piston rod 2. In this way, the several side row holes are arranged at an angle, and the outlet ends are inclined toward one end of the piston rod 2, so that the dirt can be discharged along the rising direction of the wire rope 3, thereby improving the discharge effect.
[0043] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A piston component for decontamination in a wireline well testing operation, characterized in that: The invention comprises a piston (1) and a piston rod (2), wherein the piston (1) is connected to one end of the piston rod (2), and a main hole (13) and a piston through hole (21) are respectively formed on the piston (1) and the piston rod (2), wherein the piston through hole (21) is communicated with the main hole (13), and at least one side row hole is formed on the side wall of the main hole (13), and the main hole (13) and the piston through hole (21) are used for allowing a steel wire rope (3) to pass through.
2. The piston member for decontamination in a wireline well testing operation according to claim 1, characterized in that: A separation ring (22) is formed at one end of the piston rod (2). The separation ring (22) is a convex ring protruding from the outer periphery of the piston rod (2). The separation ring (22) is used to cooperate with the step of the inner cavity of the blowout prevention box.
3. The piston member for decontamination in a wireline well testing operation according to claim 1, characterized in that: The cross section of the piston through hole (21) is in the shape of a truncated cone, and the bottom of the truncated cone is located at the outlet of the piston through hole (21).
4. The piston member for decontamination in a wireline well testing operation according to claim 3, characterized in that: The piston rod (2) is also formed with a mounting hole (23), the mounting hole (23) being located below the top of the truncated cone and being matched with the piston (1) through the mounting hole (23).
5. The piston member for decontamination in a wireline well testing operation according to claim 1, characterized in that: The main hole (13) is coaxial with the piston through hole (21).
6. The piston member for decontamination in a wireline well testing operation according to claim 4, characterized in that: A connecting portion (14) is formed on the piston (1), the outer periphery of the connecting portion (14) matches the mounting hole (23), and the bottom of the connecting portion (14) abuts against the bottom of the mounting hole (23).
7. The piston member for decontamination in a wireline well testing operation according to claim 4, characterized in that: The piston rod (2) is formed with an avoidance portion (15), and the avoidance portion (15) has a conical structure.
8. The piston component for decontamination in a wireline well testing operation according to any one of claims 1 to 7, characterized in that: The side row holes include a first side row hole (11) and a second side row hole (12); the first side row hole (11) and the second side row hole (12) penetrate the side wall of the main hole (13) and are symmetrically arranged with the central axis of the main hole (13) as a symmetry axis.
9. The piston component for decontamination in a wireline well testing operation according to any one of claims 1 to 7, characterized in that: The plurality of side row holes are evenly distributed in a circle along the central axis of the main hole (13).
10. The piston component for decontamination in a wireline well testing operation according to any one of claims 1 to 7, characterized in that: The plurality of side row holes are all arranged obliquely, and the outlet ends of the side row holes are all inclined toward one end of the piston rod (2).