Hydraulic wrench for disassembling and assembling high-pressure circulating manifold union for well drilling

Abstract

The utility model relates to a hydraulic wrench for disassembling and assembling a high-pressure circulating manifold union for well drilling. The hydraulic wrench comprises a fixed clamp, a rotary clamp and a telescopic cylinder, a first wrench is arranged at one end of the fixed clamp, the other end of the fixed clamp is hinged to one end of the telescopic cylinder, the other end of the telescopic cylinder is hinged to one end of the rotary clamp, and a second wrench is arranged at the other end of the rotary clamp. The first wrench can be selectively and fixedly arranged on the manifold body in a sleeving mode, the second wrench can be selectively and fixedly arranged on a fastening wing nut of the union in a sleeving mode, and the telescopic cylinder can drive the rotating clamp and the second wrench to rotate around the axis of the manifold body so that the fastening wing nut can rotate relative to the manifold body. According to the hydraulic wrench, the telescopic cylinder is used for pushing the rotary clamp, the rotary clamp drives the fastening wing nut to rotate through the second wrench, and therefore the union is disassembled and assembled, the original manual knocking operation mode is changed, the operation safety and efficiency are greatly improved, and meanwhile the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of union assembly and disassembly equipment technology, and in particular to a hydraulic wrench for assembling and disassembling high-pressure circulating manifolds in drilling. Background Technology

[0002] In the oil drilling industry, the high-pressure circulation manifold is an essential part of the drilling circulation system, requiring installation and disassembly before drilling or after well completion. A union, also known as an oil union, is a widely used pipeline connection component in the oil and natural gas industries. Existing unions mainly consist of a male union, a female union, and a fastening nut. The male union connects to one manifold body, the female union connects to another, and the fastening nut connects the male and female unions.

[0003] Chinese patent document CN221443594U discloses an improved sealing structure for a union, including a male union head, a female union head, and a fastening nut. The lower part of the female union head forms a sleeve for the male union head to be inserted into. The interior of the female union head has a boss corresponding to the end of the male union head. The contact surface between the female union head and the male union head is parallel to the axial direction and has multiple sealing rings. The sealing rings include circumferential grooves set on the outside of the male union head or the inside of the female union head and sealing rubber rings set in the circumferential grooves. Currently, the main method for disassembling and assembling a union is to use a hammer to strike the fastening nut to complete the disassembly and assembly of the manifold. The defects and shortcomings of this disassembly and assembly method are: (1) When the union is in a high position with limited space, it is unsafe and inconvenient for operators to disassemble the union by hammering; (2) When the drilling high-pressure circulation manifold is jammed, it is very difficult and time-consuming to disassemble and assemble the union by hammering.

[0004] Therefore, there is an urgent need to provide a hydraulic wrench for disassembling and assembling high-pressure circulation manifolds in drilling. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a hydraulic wrench for disassembling and assembling high-pressure circulating manifolds in drilling, which solves the technical problem of difficult disassembly of manifolds and potential safety hazards.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] This utility model provides a hydraulic wrench for disassembling and assembling a high-pressure circulating manifold in drilling, including a fixed clamp, a rotating clamp, and a telescopic cylinder;

[0010] One end of the fixed clamp is equipped with a first wrench, the other end of the fixed clamp is hinged to one end of the telescopic cylinder, the other end of the telescopic cylinder is hinged to one end of the rotating clamp, and the other end of the rotating clamp is equipped with a second wrench.

[0011] The first wrench can be selectively fixedly fitted onto the manifold body, and the second wrench can be selectively fixedly fitted onto the fastening nut of the union. The telescopic cylinder can drive the rotating clamp and the second wrench to rotate around the axis of the manifold body, so that the fastening nut rotates relative to the manifold body.

[0012] Optionally, the first wrench includes a first semicircular clamp, a second semicircular clamp, a fastening bolt, and a fastening nut;

[0013] The fixing clamp is connected to the outer side of the first semicircular hoop. The two ends of the first semicircular hoop protrude outward to form a first connecting plate, and the two ends of the second semicircular hoop protrude outward to form a second connecting plate. Through holes are provided on the first and second connecting plates. After the fastening bolt passes through the through holes, it is screwed into the fastening nut to fix the first and second semicircular hoops together.

[0014] Optionally, the first wrench includes a first semicircular clamp, a second semicircular clamp, a fastening bolt, and a fastening nut;

[0015] The fixing clamp is connected to the outer side of the first semicircular hoop. One end of the first semicircular hoop is hinged to one end of the second semicircular hoop. The other end of the first semicircular hoop protrudes outward to form a first connecting plate, and the other end of the second semicircular hoop protrudes outward to form a second connecting plate. Through holes are provided on the first and second connecting plates. After the fastening bolt passes through the through holes, it is screwed into the fastening nut to fix the first and second semicircular hoops together.

[0016] Optionally, toothed plates are provided on the inner circumferential surfaces of the first semicircular hoop and the second semicircular hoop, and the toothed plates are provided with serrated teeth.

[0017] Optionally, the tooth plate is a high-strength steel tooth plate.

[0018] Optionally, the second wrench includes a first limiting member, a second limiting member, and a connecting pin;

[0019] The rotating clamp is connected to the first limiting member. The two ends of the first limiting member are respectively connected to the two ends of the second limiting member through connecting pins to form a detachable connection, thereby forming a ring structure. This ring structure can be fitted onto the fastening wing nut.

[0020] The first and second limiting members have grooves inside, and the grooves are provided with baffles corresponding to the protrusions on the fastening wing nut. The baffles are used to abut against the protrusions.

[0021] Optionally, both the first and second limiting members include two parallel semi-circular ring plates, with the groove formed between the two semi-circular ring plates, and pin holes are provided at the ends of the two semi-circular ring plates for insertion of connecting pins.

[0022] Alternatively, the telescopic cylinder can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0023] (III) Beneficial Effects

[0024] The beneficial effects of this utility model are as follows: The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling includes a fixed clamp, a rotating clamp, and a telescopic cylinder. One end of the fixed clamp has a first wrench, and the other end of the fixed clamp is hinged to one end of the telescopic cylinder. The other end of the telescopic cylinder is hinged to one end of the rotating clamp, and the other end of the rotating clamp has a second wrench. The first wrench can be selectively fixedly fitted onto the manifold body, and the second wrench can be selectively fixedly fitted onto the fastening nut of the union. The telescopic cylinder can drive the rotating clamp and the second wrench to rotate around the axis of the manifold body, causing the fastening nut to rotate relative to the manifold body. Compared to existing manual hammering disassembly and assembly methods, this hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling can drive the rotating clamp to rotate via the telescopic cylinder, and the rotating clamp drives the fastening nut to rotate via the second wrench, thereby achieving the disassembly and assembly of the union. This changes the previous manual hammering operation method, greatly improving the safety and efficiency of union disassembly and assembly operations, while reducing the labor intensity of workers. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the drilling high-pressure circulation manifold of this utility model, connected by unions.

[0026] Figure 2 This is a three-dimensional schematic diagram of the hydraulic wrench for disassembling and assembling a high-pressure circulation manifold for drilling according to the present invention.

[0027] Figure 3 This is a front view schematic diagram of the hydraulic wrench for disassembling and assembling a high-pressure circulation manifold for drilling according to this utility model.

[0028] [Explanation of Labels in the Attached Image]

[0029] 1: Fixing clamp; 11: First semicircular clamp; 12: Second semicircular clamp; 13: Fastening bolt; 14: Tooth plate;

[0030] 2: Rotary clamp; 21: First limiting component; 22: Second limiting component; 23: Connecting pin; 24: Baffle;

[0031] 3: Telescopic cylinder; 4: Manifold body; 5: Fastening nut; 51: Protrusion. Detailed Implementation

[0032] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1:

[0034] Reference Figure 1 , Figure 2 and Figure 3 This embodiment provides a hydraulic wrench for disassembling and assembling a high-pressure circulating manifold in drilling, including a fixed clamp 1, a rotating clamp 2, and a telescopic cylinder 3;

[0035] One end of the fixed clamp 1 is provided with a first wrench, the other end of the fixed clamp 1 is hinged to one end of the telescopic cylinder 3, the other end of the telescopic cylinder 3 is hinged to one end of the rotating clamp 2, and the other end of the rotating clamp 2 is provided with a second wrench.

[0036] The first wrench can be selectively fixedly sleeved on the manifold body 4, and the second wrench can be selectively fixedly sleeved on the fastening nut 5 of the union. The telescopic cylinder 3 can drive the rotating clamp 2 and the second wrench to rotate around the axis of the manifold body 4 so that the fastening nut 5 rotates relative to the manifold body 4.

[0037] The hydraulic wrench for disassembling and assembling the high-pressure circulating manifold in this embodiment uses a telescopic cylinder 3 to push a rotating clamp 2. The rotating clamp 2, through a second wrench, drives the fastening nut 5 to rotate, thereby realizing the disassembly and assembly of the union. This changes the previous manual hammering operation method, greatly improving the safety and efficiency of the operation, while reducing the labor intensity of workers.

[0038] Preferably, the first wrench includes a first semicircular clamp 11, a second semicircular clamp 12, a fastening bolt 13, and a fastening nut. The fixing clamp 1 is connected to the outer side of the first semicircular clamp 11. The two ends of the first semicircular clamp 11 protrude outward to form a first connecting plate, and the two ends of the second semicircular clamp 12 protrude outward to form a second connecting plate. Through holes are provided on the first and second connecting plates. After the fastening bolt 13 passes through the through holes, it engages with the fastening nut to fix the first semicircular clamp 11 and the second semicircular clamp 12 together. Alternatively, the fixing clamp 1 is connected to the outer side of the first semicircular hoop 11, one end of the first semicircular hoop 11 is hinged to one end of the second semicircular hoop 12, the other end of the first semicircular hoop 11 protrudes outward to form a first connecting plate, the other end of the second semicircular hoop 12 protrudes outward to form a second connecting plate, and through holes are provided on the first connecting plate and the second connecting plate. After the fastening bolt 13 passes through the through hole, it is screwed into the fastening nut to fix the first semicircular hoop 11 and the second semicircular hoop 12 together.

[0039] Furthermore, the inner circumferential surfaces of the first semicircular hoop 11 and the second semicircular hoop 12 are provided with protruding toothed plates 14, and the toothed plates 14 have serrated teeth on their sides facing the manifold body 4. The purpose of providing toothed plates 14 is to increase the friction between the first wrench and the manifold body 4, so as to prevent the first wrench from slipping.

[0040] Furthermore, the fixing clamp 1, the first semicircular hoop 11, and the second semicircular hoop 12 are welded steel structures, and the first semicircular hoop 11 and the second semicircular hoop 12 can be made with corresponding circular grooves according to different manifold sizes.

[0041] Furthermore, the toothed plate 14 is a high-strength steel toothed plate. For example, the high-strength steel can be grade Q460 steel. Q460 steel has high strength, especially in the normalized or normalized and tempered state, where it has high comprehensive mechanical properties.

[0042] In this embodiment, the second wrench includes a first limiting member 21, a second limiting member 22, and a connecting pin 23.

[0043] The rotating clamp 2 is connected to the first limiting member 21. The two ends of the first limiting member 21 are respectively connected to the two ends of the second limiting member 22 through the connecting pin 23, thereby forming a ring structure. This ring structure can be fitted onto the fastening wing nut 5.

[0044] The first limiting member 21 and the second limiting member 22 have grooves inside. A baffle 24 is provided in the groove corresponding to the protrusion 51 on the fastening nut 5. The baffle 24 is used to abut against the protrusion 51. In use, the first limiting member 21 and the second limiting member 22 are sleeved on the fastening nut 5 and connected with the connecting pin 23. Then, by extending the telescopic cylinder 3, the rotating clamp 2 drives the fastening nut 5 to rotate, realizing the assembly and disassembly of the drilling high-pressure circulation manifold.

[0045] Furthermore, both the first limiting member 21 and the second limiting member 22 include two parallel semi-circular ring plates, forming the groove between them. The ends of the two semi-circular ring plates are provided with pin holes for the insertion of the connecting pin 23. Specifically, in use, the pin holes at the ends of the first limiting member 21 and the second limiting member 22 overlap, and the connecting pin 23 passes through the pin holes to fix the first limiting member 21 and the second limiting member 22 together.

[0046] Preferably, the telescopic cylinder 3 in this embodiment is a hydraulic cylinder. This hydraulic cylinder is a one-way hydraulic telescopic cylinder with connection holes at both ends for easy connection to the fixing clamp 1 and the rotating clamp 2. In actual use, the operator can select a standard hydraulic cylinder with the appropriate thrust according to the different pressure ratings of the manifold.

[0047] Example 2:

[0048] Reference Figure 3This embodiment provides another hydraulic wrench for disassembling and assembling high-pressure circulating manifolds for drilling. The difference from embodiment 1 is that the telescopic cylinder 3 in this embodiment is a pneumatic cylinder or an electric cylinder.

[0049] The remaining parts that are the same as in Example 1 will not be repeated here.

[0050] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0052] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hydraulic wrench for disassembling and assembling a high-pressure circulating manifold in drilling, characterized in that: It includes a fixed clamp (1), a rotating clamp (2), and a telescopic cylinder (3); One end of the fixed clamp (1) is provided with a first wrench, the other end of the fixed clamp (1) is hinged to one end of the telescopic cylinder (3), the other end of the telescopic cylinder (3) is hinged to one end of the rotating clamp (2), and the other end of the rotating clamp (2) is provided with a second wrench. The first wrench can be selectively fixed on the manifold body (4), and the second wrench can be selectively fixed on the fastening nut (5) of the union. The telescopic cylinder (3) can drive the rotating clamp (2) and the second wrench to rotate around the axis of the manifold body (4) so ​​that the fastening nut (5) rotates relative to the manifold body (4).

2. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 1, characterized in that: The first wrench includes a first semicircular clamp (11), a second semicircular clamp (12), a fastening bolt (13), and a fastening nut; The fixing clamp (1) is connected to the outer side of the first semicircular hoop (11). The two ends of the first semicircular hoop (11) protrude outward to form a first connecting plate, and the two ends of the second semicircular hoop (12) protrude outward to form a second connecting plate. Through holes are provided on the first connecting plate and the second connecting plate. After the fastening bolt (13) passes through the through hole, it is screwed with the fastening nut to fix the first semicircular hoop (11) and the second semicircular hoop (12) together.

3. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 1, characterized in that: The first wrench includes a first semicircular clamp (11), a second semicircular clamp (12), a fastening bolt (13), and a fastening nut; The fixing clamp (1) is connected to the outer side of the first semicircular hoop (11). One end of the first semicircular hoop (11) is hinged to one end of the second semicircular hoop (12). The other end of the first semicircular hoop (11) protrudes outward to form a first connecting plate. The other end of the second semicircular hoop (12) protrudes outward to form a second connecting plate. Through holes are provided on the first connecting plate and the second connecting plate. After the fastening bolt (13) passes through the through hole, it is screwed into the fastening nut to fix the first semicircular hoop (11) and the second semicircular hoop (12) together.

4. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 2 or 3, characterized in that: The inner circumferential surface of the first semicircular hoop (11) and the inner circumferential surface of the second semicircular hoop (12) are provided with tooth plates (14), and the tooth plates (14) are provided with serrated teeth.

5. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 4, characterized in that: The tooth plate (14) is a high-strength steel tooth plate.

6. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 1, characterized in that: The second wrench includes a first limiting member (21), a second limiting member (22), and a connecting pin (23); The rotating clamp (2) is connected to the first limiting member (21). The two ends of the first limiting member (21) are respectively connected to the two ends of the second limiting member (22) through the connecting pin (23), thereby forming a ring structure. This ring structure can be fitted onto the fastening wing nut (5). The first limiting member (21) and the second limiting member (22) have grooves inside. The grooves are provided with baffles (24) corresponding to the protrusions (51) on the fastening nut (5). The baffles (24) are used to abut against the protrusions (51).

7. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 6, characterized in that: The first limiting member (21) and the second limiting member (22) both include two parallel semi-circular ring plates, and the groove is formed between the two semi-circular ring plates. The ends of the two semi-circular ring plates are provided with pin holes for the insertion of connecting pins (23).

8. The hydraulic wrench for disassembling and assembling high-pressure circulation manifolds for drilling as described in claim 1, characterized in that: The telescopic cylinder (3) is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

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