Wellhead device
By introducing limiting protrusions and grooves into the wellhead device, the problems of long maintenance time and high cost caused by wear and impact are solved, enabling rapid disassembly and installation, and improving equipment efficiency and drilling quality.
Patent Information
- Application Number
- CN202520558499.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing wellhead equipment is damaged during use due to wear and impact, resulting in long repair times and high costs, reducing equipment efficiency and increasing well drilling costs.
A wellhead device was designed. The cylindrical device body and the cylindrical pipe seat are positioned axially and circumferentially through the cooperation of limiting protrusions and sliding grooves, which facilitates quick disassembly and installation and reduces maintenance time and cost.
It enables rapid replacement of wellhead equipment, reduces maintenance time, lowers equipment maintenance costs, and improves drilling efficiency and work quality.
Smart Images
Figure CN223676217U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wellhead device technical field especially relates to a wellhead device. BACKGROUND
[0002] Mountain drilling machine is very important drilling equipment in oil exploration industry, it can solve in mountain, marsh, hilly, lake, prairie and shrub belt and other vehicle-mounted drilling machine cannot reach terrain area, and carry out geophysical well drilling operation.
[0003] Wellhead device of mountain drilling machine is the component of righting drill rod and guaranteeing drilling perpendicularity, because wellhead device and drill rod and ground gravel are closely and trivial contact, always cause wellhead device damage and cannot use after using a period of time because of abrasion and impact etc.
[0004] Current maintenance method is cutting wellhead device from derrick, re-welding wellhead device with complete function. However, this will increase maintenance time and maintenance cost, reduce equipment use efficiency, increase drilling cost. UTILITY MODEL CONTENTS
[0005] The utility model discloses a wellhead device, and the circular tube seat is fixed on the derrick, after the damage of the cylindrical device body, it can be conveniently replaced from the circular tube seat, thereby reducing the maintenance time and cost, reducing downtime, and improving the use efficiency.
[0006] To achieve this purpose, the utility model adopts the following technical scheme:
[0007] Wellhead device, the wellhead device includes cylindrical device body and upper and lower extending circular tube seat, the limit protrusion is fixed on the peripheral wall of one of the cylindrical device body and the circular tube seat, the first sliding groove that penetrates the end face of the sleeve joint and the second sliding groove that communicates with the first sliding groove are arranged on the peripheral wall of the other, the first sliding groove extends along the axial direction, the second sliding groove extends along the circumferential direction, the cylindrical device body is inserted into the circular tube seat from top to bottom and rotates in the circular tube seat, can make the limit protrusion slip from the first sliding groove into the second sliding groove.
[0008] Optionally, the first sliding groove and the second sliding groove are arranged on the peripheral wall of the circular tube seat, and the limit protrusion is arranged on the peripheral wall of the cylindrical device body.
[0009] Optionally, the first sliding groove and / or the second sliding groove penetrate the wall thickness of the circular tube seat.
[0010] Optionally, the second sliding groove extends along the clockwise direction from the first sliding groove in the perspective of the top view.
[0011] Optionally, the limiting protrusions, the first sliding grooves and the second sliding grooves are provided with multiple and one-to-one correspondence, multiple limiting protrusions are arranged in a circumferential direction, and multiple groups of the first sliding grooves and the second sliding grooves are arranged in a circumferential direction.
[0012] Optionally, the limiting protrusions, the first sliding grooves and the second sliding grooves are provided with two, two limiting protrusions are arranged in a radial direction, and two groups of the first sliding grooves and the second sliding grooves are arranged in a radial direction.
[0013] Optionally, when the limiting protrusion is in the first sliding groove and the second sliding groove, the limiting protrusion is in transition fit with the first sliding groove and the second sliding groove.
[0014] Optionally, the surface roughness of the first sliding groove and the surface roughness of the second sliding groove are both less than or equal to Ra1.6.
[0015] Optionally, the length of the first sliding groove in the axial direction is less than the length of the second sliding groove in the circumferential direction.
[0016] Optionally, the size of the first sliding groove in the axial direction is 10mm, and the size of the second sliding groove in the circumferential direction is 20mm.
[0017] Beneficial effects:
[0018] The wellhead device provided by the utility model, the cylindrical device body is inserted into the circular pipe seat from top to bottom, the circular pipe seat directly restricts the displacement of the cylindrical device body in the radial direction; through the cooperation of the limiting protrusion and the first sliding groove and the second sliding groove, the installation track or the disassembly track of the cylindrical device body relative to the circular pipe seat is further restricted, so that the cylindrical device body can only be installed or disassembled in a specific track, and the first sliding groove and the second sliding groove further limit the movement of the cylindrical device body only in the circumferential direction or only in the axial direction; through the above setting, the position of the cylindrical device can be constantly kept in the circular pipe seat, so that the installation positioning of the cylindrical device body on the circular pipe seat is realized, and the cylindrical device body can be disassembled according to the track defined by the first sliding groove and the second sliding groove, so that maintenance and replacement are facilitated. When the cylindrical device body is damaged, the cylindrical device body of the wellhead device can be quickly replaced on the construction site, the maintenance process time is saved, the equipment maintenance cost is reduced, the well drilling efficiency is improved, and the project well drilling cost is reduced.
[0019] The first sliding groove provides axial guidance for the insertion of the cylindrical device body, facilitating accurate insertion; the second sliding groove realizes circumferential positioning when the cylindrical device body rotates, and the two cooperate to make the installation process of the wellhead device accurate and stable, improve the reliability and stability of the wellhead device after installation, and avoid relative displacement due to vibration or stress during operation.
[0020] The wellhead device is positioned by cooperation of the limiting protrusion between the cylindrical device body and the circular pipe seat and the first sliding groove and the second sliding groove, and only needs to be inserted from top to bottom when installing, and then rotated to complete positioning, and the reverse operation can be completed when disassembling. The cooperation of the limiting protrusion and the first sliding groove and the second sliding groove can effectively prevent the relative displacement between the cylindrical device body and the circular pipe seat from occurring accidentally when the equipment is working, so that the wellhead device can still maintain stability under the action of external forces such as drill pipe vibration, ground gravel impact, and the like, thereby ensuring the drill pipe centralizing effect and the drilling verticality, and improving the well drilling operation quality. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is a front view of the wellhead device provided by the embodiment of the present application;
[0022] Figure 2 is a top view of the cylindrical device body provided by the embodiment of the present application.
[0023] In the drawings:
[0024] 11, cylindrical device body; 111, limiting protrusion;
[0025] 12, circular pipe seat; 121, first sliding groove; 122, second sliding groove. DETAILED DESCRIPTION
[0026] The technical scheme of the present application will be further described below by combining the drawings and specific embodiments.
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be clearly and completely described below by combining the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0029] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the utility model, it needs to explain, the term "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, or is the orientation or position relation of the utility model product when using commonly placed, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate with a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and so on are only used for differentiation, and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0031] In the description of the utility model, it also needs to explain that, unless otherwise specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0032] In the utility model, unless otherwise specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0033] In the description of the utility model, the term "and / or" is only a description of the association between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the utility model generally indicates that the front and rear associated objects have an "or" relationship.
[0034] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as a limitation on the utility model.
[0035] As Figure 1 And Figure 2As shown, the embodiment provides a wellhead device. The wellhead device comprises a cylindrical device body 11 and a circular pipe seat 12 extending upward and downward, a limiting protrusion 111 is fixed on the circumferential wall of one of the cylindrical device body 11 and the circular pipe seat 12, and a first sliding groove 121 penetrating the end surface of the other of the cylindrical device body 11 and the circular pipe seat 12 and a second sliding groove 122 communicating with the first sliding groove 121 are arranged on the circumferential wall of the other of the cylindrical device body 11 and the circular pipe seat 12, the first sliding groove 121 extends in the axial direction, and the second sliding groove 122 extends in the circumferential direction. The cylindrical device body 11 is inserted into the circular pipe seat 12 from top to bottom and rotated in the circular pipe seat 12, so that the limiting protrusion 111 is slid from the first sliding groove 121 into the second sliding groove 122.
[0036] The wellhead device provided by the embodiment, the cylindrical device body 11 is inserted into the circular pipe seat 12 from top to bottom, and the circular pipe seat 12 directly restricts the displacement of the cylindrical device body 11 in the radial direction. Through the cooperation of the limiting protrusion 111 and the first sliding groove 121 and the second sliding groove 122, the installation track or the disassembly track of the cylindrical device body 11 relative to the circular pipe seat 12 is further restricted, so that the cylindrical device body 11 can only be installed or disassembled in a specific track, and the first sliding groove 121 and the second sliding groove 122 further limit the movement of the cylindrical device body 11 only in the circumferential direction or only in the axial direction. Through the above arrangement, the position of the cylindrical device body 11 can be constantly kept in the circular pipe seat 12, so that the installation and positioning of the cylindrical device body 11 on the circular pipe seat 12 are realized, and the disassembly of the cylindrical device body 11 according to the track defined by the first sliding groove 121 and the second sliding groove 122 is facilitated, thereby facilitating maintenance and replacement.
[0037] The first sliding groove 121 provides axial guidance for the insertion of the cylindrical device body 11, facilitating accurate insertion, and the second sliding groove 122 realizes circumferential positioning when the cylindrical device body 11 rotates, and the two cooperate to make the installation process of the wellhead device accurate and stable, ensuring the reliability and stability of the wellhead device after installation and avoiding relative displacement due to vibration or stress during operation.
[0038] The wellhead device cooperates the limiting protrusion 111 with the first sliding groove 121 and the second sliding groove 122 between the cylindrical device body 11 and the circular pipe seat 12, so that during installation, the cylindrical device body 11 only needs to be inserted into the circular pipe seat 12 from top to bottom, and then rotated to complete positioning, and during disassembly, reverse operation can be performed. The cooperation of the limiting protrusion 111 with the first sliding groove 121 and the second sliding groove 122 can effectively prevent accidental relative displacement between the cylindrical device body 11 and the circular pipe seat 12 during equipment operation, so as to ensure that the wellhead device can still maintain stability under the action of external forces such as drill pipe vibration, ground gravel impact, and the like, thereby ensuring the drill pipe centralizing effect and the drilling perpendicularity and improving the quality of well drilling operation.
[0039] Optionally, the first sliding groove 121 and the second sliding groove 122 are arranged on the circumferential wall of the circular pipe seat 12, and the limiting protrusion 111 is arranged on the circumferential wall of the cylindrical device body 11. The limiting protrusion 111 arranged on the circumferential wall of the cylindrical device body 11 and the first sliding groove 121 and the second sliding groove 122 arranged on the circumferential wall of the circular pipe seat 12 make the force transmission more reasonable when the wellhead device is working. The cylindrical device body 11 is one of the main force components, and the limiting protrusion 111 on the circumferential wall of the cylindrical device body 11 can better transmit external force to the first sliding groove 121 and the second sliding groove 122 of the circular pipe seat 12, thereby enhancing the mechanical properties of the overall structure and ensuring the stability of the wellhead device under complex stress conditions.
[0040] As shown in Figure 1 , optionally, the first sliding groove 121 and / or the second sliding groove 122 penetrate the wall thickness of the circular pipe seat 12. The penetrating first sliding groove 121 or second sliding groove 122 facilitates observation of the movement of the limiting protrusion 111 in the first sliding groove 121 and the second sliding groove 122 from the outside of the circular pipe seat 12, facilitates installation and disassembly, and facilitates maintenance and replacement.
[0041] Optionally, in a top view, the second sliding groove 122 extends in a clockwise direction from the first sliding groove 121. In this way, a unified operation specification is provided for the installation of the wellhead device, right-handed installation is achieved, and left-handed disassembly is achieved, which helps different operators to install according to the same standard.
[0042] Optionally, the limiting protrusion 111, the first sliding groove 121 and the second sliding groove 122 are each provided with a plurality of and one-to-one correspondence. The plurality of limiting protrusions 111 are arranged in a circumferential direction, and the plurality of first sliding grooves 121 and the plurality of second sliding grooves 122 are arranged in a circumferential direction. Such an arrangement makes the connection between the cylindrical device body 11 and the circular pipe seat 12 more uniform in the circumferential direction. Thus, during the working process of the wellhead device, it can better withstand external forces from different directions, such as eccentric loads of drill pipes, uneven impacts of gravel on the ground, etc., thereby enhancing the stability and reliability of the overall wellhead device and further ensuring the drill pipe centralizing effect and the drilling perpendicularity.
[0043] As shown in Figure 1 and Figure 2 , in some embodiments, the limiting protrusion 111, the first sliding groove 121 and the second sliding groove 122 are each provided with two, the two limiting protrusions 111 are arranged in a radial direction, and the two first sliding grooves 121 and the two second sliding grooves 122 are arranged in a radial direction. In other words, the first sliding groove 121 and the second sliding groove 122 corresponding thereto as a whole form a group as a limiting groove, and there are two groups of limiting grooves, and the two groups of limiting grooves are arranged in a radial direction. While ensuring the stability of the connection of the wellhead device, the number of components is reduced, and the production cost is reduced.
[0044] As shown in Figure 1As shown, optionally, when the limiting protrusion 111 is in the first sliding groove 121 and the second sliding groove 122, the limiting protrusion 111 is in transition fit with the first sliding groove 121 and the limiting protrusion 111 is in transition fit with the second sliding groove 122. The transition fit can ensure a certain degree of tightness between the limiting protrusion 111 and the first sliding groove 121 and the second sliding groove 122, prevent the wellhead device from shaking due to too large gap during the working process, and affect the drill rod centralizing and the drilling perpendicularity; and the transition fit can also be relatively easy during installation and disassembly, so as not to cause installation difficulty due to interference fit or unstable connection due to gap fit, thereby ensuring that the wellhead device can work stably and reliably under different working conditions.
[0045] Optionally, the surface roughness of the first sliding groove 121 and the surface roughness of the second sliding groove 122 are both ≤Ra1.6. Such roughness ensures that the surfaces of the first sliding groove 121 and the second sliding groove 122 have high smoothness. During the sliding process of the limiting protrusion 111 in the first sliding groove 121 and the second sliding groove 122, the low roughness surface can reduce the friction between the two, facilitating installation and disassembly.
[0046] As shown, Figure 1 Optionally, the length of the first sliding groove 121 in the axial direction is less than the length of the second sliding groove 122 in the circumferential direction. When the limiting protrusion 111 is located in the second sliding groove 122 away from the first sliding groove 121, the longer second sliding groove 122 can reduce the risk of the limiting protrusion 111 sliding from the second sliding groove 122 to the first sliding groove 121 and sliding out, which is conducive to ensuring the relative stability of the cylindrical device body 11 and the circular pipe seat 12 in the radial direction.
[0047] In some embodiments, the size of the first sliding groove 121 in the axial direction is 10 mm, and the size of the second sliding groove 122 in the circumferential direction is 20 mm. In this embodiment, the inner diameter of the circular pipe seat 12 is 100 mm, the length in the axial direction is 100 mm, and the pipe wall thickness is 5 mm. The diameter of the cylindrical device body 11 is 95 mm, and the length in the axial direction is 150 mm. Specifically, the cylindrical device body 11 is a pipe type, and the wall thickness is 3 mm. The size of the limiting protrusion 111 in the axial direction is 10 mm, and the size in the radial direction is 8 mm.
[0048] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A wellhead installation, characterised in that The wellhead device comprises a cylindrical device body (11) and a circular pipe seat (12) extending upward and downward, a limiting protrusion (111) is fixed on the peripheral wall of one of the cylindrical device body (11) and the circular pipe seat (12), a first sliding groove (121) penetrating the end face of the sleeve joint end is arranged on the peripheral wall of the other one, and a second sliding groove (122) in communication with the first sliding groove (121) is arranged, the first sliding groove (121) extends in the axial direction, the second sliding groove (122) extends in the circumferential direction, the cylindrical device body (11) is inserted into the circular pipe seat (12) from top to bottom and rotates in the circular pipe seat (12), so that the limiting protrusion (111) can slide from the first sliding groove (121) into the second sliding groove (122).
2. A wellhead assembly according to claim 1, characterised in that The peripheral wall of the circular pipe seat (12) is provided with the first sliding groove (121) and the second sliding groove (122), and the peripheral wall of the cylindrical device body (11) is provided with the limiting protrusion (111).
3. A wellhead installation according to claim 2, characterised in that The first sliding groove (121) and / or the second sliding groove (122) penetrates the wall thickness of the circular pipe seat (12).
4. The wellhead assembly of claim 1, wherein, When viewed from the top, the second sliding groove (122) extends in the clockwise direction from the first sliding groove (121).
5. The wellhead assembly of claim 1, wherein, The limiting protrusion (111), the first sliding groove (121) and the second sliding groove (122) are each provided with a plurality of and one-to-one correspondence, a plurality of limiting protrusions (111) are arranged in a circumferential direction, and a plurality of first sliding grooves (121) and second sliding grooves (122) are arranged in a circumferential direction.
6. A wellhead assembly according to claim 5, characterised in that The limiting protrusion (111), the first sliding groove (121) and the second sliding groove (122) are each provided with two, two limiting protrusions (111) are arranged in a radial direction, and two first sliding grooves (121) and second sliding grooves (122) are arranged in a radial direction.
7. The wellhead assembly of claim 1, wherein, When the limiting protrusion (111) is in the first sliding groove (121) and the second sliding groove (122), the limiting protrusion (111) is in transition fit with the first sliding groove (121) and the second sliding groove (122).
8. The wellhead assembly of claim 1, wherein, The surface roughness of the first sliding groove (121) and the surface roughness of the second sliding groove (122) are each ≤Ra1.
6.
9. The wellhead assembly of claim 1, wherein, The length of the first sliding groove (121) in the axial direction is less than the length of the second sliding groove (122) in the circumferential direction.
10. A wellhead installation according to claim 9, characterised in that The size of the first sliding groove (121) in the axial direction is 10mm, and the size of the second sliding groove (122) in the circumferential direction is 20mm.