Anti-collision metal sealing hanger

Abstract

The utility model provides an anti-collision metal sealing hanger, which relates to the technical field of sealing hangers and comprises a tubing head main body, a metal sealing hanger main body is mounted in the tubing head main body, and a sealing cover is fixed at the top end of the tubing head main body through a bolt. Fixing assemblies are symmetrically installed on the left side and the right side of the top end of the sealing cover in a manner of penetrating through the bottom, a built-in groove is formed in the tubing head body, a limiting ring is welded to the position, close to the bottom, in the tubing head body, and reset assemblies are symmetrically installed on the positions, close to the left side and the right side, of the periphery of the tubing head body; the periphery of the metal sealing hanger body is close to the left side and the right side, the upper position and the lower position of the metal sealing hanger body can be fixed through cooperation of the fixing assemblies and the limiting rings, the collision capacity and the impact capacity are greatly improved through cooperation of the limiting assemblies, the probability of displacement is reduced, and the sealing effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealed hanger, especially to a kind of anti-collision metal sealed hanger. BACKGROUND

[0002] ‌Sealed hanger‌It is a kind of key equipment for petroleum drilling and well completion process, mainly installed in casing head, for suspending and supporting casing string in well, ensuring its stability in well, and providing necessary sealing to prevent leakage of fluid in well between different casing layers‌‌‌;

[0003] Common anti-collision metal sealed hanger structure is relatively simple, and its anti-collision and impact resistance is insufficient, and traditional hanger is prone to displacement when wellhead is subjected to external mechanical impact or internal pressure fluctuation, resulting in sealing failure, therefore, we propose a kind of anti-collision metal sealed hanger. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and the common anti-collision metal sealed hanger structure is relatively simple, and its anti-collision and impact resistance is insufficient, and traditional hanger is prone to displacement when wellhead is subjected to external mechanical impact or internal pressure fluctuation, resulting in sealing failure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An anti-collision metal sealed hanger, comprising a tubing head main body, a metal sealed hanger main body is installed inside the tubing head main body;

[0007] The top end of the tubing head main body is fixed with a sealing cover by bolts, a fixing assembly is installed through the bottom on the left and right sides of the top end of the sealing cover, an internal recess is formed in the inside of the tubing head main body, a limit ring is welded in the inside of the tubing head main body close to the bottom, and a reset assembly is symmetrically installed on the periphery of the tubing head main body close to the left and right sides;

[0008] The periphery of the metal sealed hanger main body close to the left and right sides is installed with a limit assembly in the inside of the internal recess, and a sliding groove is formed in the left and right sides of the metal sealed hanger main body close to the top end corresponding to the limit assembly.

[0009] As a preferred scheme of the utility model, a through hole corresponding to the metal sealed hanger main body is formed in the top end of the sealing cover close to the center, and a sealing gasket is bonded at the contact position of the bottom of the sealing cover and the tubing head main body.

[0010] The technical effect of the above-mentioned further scheme is that the sealing effect between the sealing cover and the tubing head main body can be improved by the sealing gasket.

[0011] As a preferred embodiment of this utility model, the fixing component includes a first threaded rod, which is threadedly connected to the sealing cover. A pressure block is rotatably connected to the bottom of the first threaded rod, and the pressure block abuts against the main body of the metal sealing hanger.

[0012] The technical effect of adopting the above-mentioned further solution is that by rotating the first threaded rod, the pressure block can be moved downward, thereby cooperating with the limiting ring to fix the upper and lower positions of the metal sealing hanger body, improving the stability of use.

[0013] As a preferred embodiment of this utility model, the inner side of the limiting ring is a downwardly inclined surface, and the metal sealing hanger body is located near the bottom periphery and is fitted with a conical sealing ring inside the limiting ring, the conical sealing ring being inserted into the limiting ring.

[0014] The technical effect of adopting the above-mentioned further solution is that by inserting the conical sealing ring and the limiting ring, the sealing effect between the limiting ring and the metal sealing hanger body can be improved, and the probability of fluid leakage can be reduced.

[0015] As a preferred embodiment of this utility model, the reset assembly includes an adjusting rod, which is threadedly connected to the main body of the oil pipe head. A baffle is welded to the periphery of one end of the adjusting rod extending into the inner side of the built-in groove, and a sealing sheet is bonded to the outer side of the baffle where it contacts the main body of the oil pipe head.

[0016] The technical effect of adopting the above-mentioned further solution is that the arc-shaped card plate can be pushed inward by rotating the adjusting rod to reset it, which facilitates the removal of the metal sealing hanger body. The sealing plate can improve the sealing effect between the baffle and the built-in groove, reducing the probability of fluid leakage.

[0017] As a preferred embodiment of this utility model, a sealing ring assembly is fitted around the periphery of the metal sealing hanger body near the bottom, and a metal sealing ring is fitted around the periphery of the metal sealing hanger body near the bottom and above the limiting ring.

[0018] The technical effect of adopting the above-mentioned further solution is that the sealing effect between the tubing head body and the metal seal hanger body can be improved by using the sealing ring group and the metal seal ring.

[0019] As a preferred embodiment of this utility model, the limiting component includes a return spring, which is fixedly connected to the main body of the metal sealing hanger. A sliding rod is fixedly connected to the outer end of the return spring, and the sliding rod is slidably connected to the main body of the metal sealing hanger. An arc-shaped retaining plate is welded to the outer end of the sliding rod, and the arc-shaped retaining plate abuts against the built-in groove.

[0020] The technical effect of adopting the above-mentioned further solution is that the return spring can continuously push the slide bar outward, thereby causing it to drive the arc-shaped card plate to be embedded in the built-in groove, limiting the up-and-down movement of the metal sealing hanger body in the peripheral direction and reducing the probability of displacement.

[0021] As a preferred embodiment of this utility model, the top of the baffle is provided with a threaded opening.

[0022] The technical effect of adopting the above-mentioned further solution is that, by opening the threaded port, the external adapter threaded rod can be threadedly connected to the baffle, which makes it convenient for the baffle to move upward by pulling the external adapter threaded rod when the limiting component moves to the built-in groove, so that the arc-shaped card plate can be smoothly embedded into the built-in groove, thereby improving the stability of use.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] In this invention, the design of the main body of the oil pipe head and the main body of the metal sealing hanger allows for the vertical fixation of the main body of the metal sealing hanger using a fixing component and a limiting ring. The use of the limiting component further limits and fixes the main body of the metal sealing hanger in the vertical and peripheral directions, greatly improving its collision and impact resistance, reducing the probability of displacement, and effectively improving the sealing effect. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of an anti-collision metal sealing suspension device provided by this utility model;

[0026] Figure 2 A frontal anatomical view of the overall structure of an anti-collision metal sealing suspension device provided by this utility model;

[0027] Figure 3 A sectional view of the overall top structure of an anti-collision metal sealing suspension device provided by this utility model;

[0028] Figure 4 This is an enlarged schematic diagram of structure A of an anti-collision metal sealing suspension device provided by this utility model.

[0029] Legend: 1. Tube head body; 101. Sealing cap; 102. Fixing component; 1021. First threaded rod; 1022. Pressure block; 103. Internal groove; 104. Limiting ring; 105. Reset component; 1051. Adjusting rod; 1052. Baffle; 2. Metal seal hanger body; 201. Limiting component; 2011. Reset spring; 2012. Slide rod; 2013. Arc-shaped clamping plate; 202. Slide groove; 203. Baffle; 2031. Threaded opening; 204. Conical sealing ring; 205. Sealing ring assembly; 206. Metal sealing ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Example 1:

[0035] like Figures 1-4As shown, this utility model provides a technical solution: an anti-collision metal sealing suspension device, including an oil pipe head body 1, a metal sealing suspension device body 2 installed inside the oil pipe head body 1, a sealing cover 101 fixed to the top of the oil pipe head body 1 by bolts, fixing components 102 installed on the left and right sides of the top of the sealing cover 101 through the bottom, an internal groove 103 is provided inside the oil pipe head body 1, a limit ring 104 is welded to the inside of the oil pipe head body 1 near the bottom, a reset component 105 is symmetrically installed on the outer periphery of the oil pipe head body 1 near the left and right sides, a limit component 201 is installed on the outer periphery of the metal sealing suspension device body 2 near the left and right sides and inside the internal groove 103, and a sliding groove 202 is provided on the left and right sides of the metal sealing suspension device body 2 near the top corresponding to the limit component 201, a baffle 203 is slidably connected inside the sliding groove 202, the baffle 203 and the sliding groove 202 are connected by the static friction slider principle, and the position of the baffle 203 and the sliding groove 202 can be kept relatively stationary without the application of external thrust.

[0036] Example 2:

[0037] like Figures 1-4As shown, the top of the sealing cover 101 has a through hole near the center, corresponding to the metal seal hanger body 2. A sealing gasket is adhered to the bottom of the sealing cover 101 where it contacts the oil pipe head body 1. The sealing gasket improves the sealing effect between the sealing cover 101 and the oil pipe head body 1. The fixing assembly 102 includes a first threaded rod 1021, which is threadedly connected to the sealing cover 101. A pressure block 1022 is rotatably connected to the bottom of the first threaded rod 1021. The pressure block 1022 abuts against the metal seal hanger body 2. Rotating the first threaded rod 1021 moves the pressure block 1022 downwards, thereby cooperating with the limiting ring 104 to fix the metal seal hanger body 2 in its vertical position, improving stability during use. The inner side of the limiting ring 104 is a downwardly sloping surface. A conical sealing ring 204 is fitted inside the limiting ring 104 near the bottom periphery of the metal seal hanger body 2. The conical sealing ring 204 is inserted into the limiting ring 104. This insertion improves the sealing effect between the limiting ring 104 and the metal seal hanger body 2, reducing the probability of fluid leakage. The reset assembly 105 includes an adjusting rod 1051, which is threadedly connected to the oil pipe head body 1. A baffle 1052 is welded to the periphery of one end of the adjusting rod 1051 extending into the inner side of the built-in groove 103. A sealing plate is adhered to the outer side of the baffle 1052 where it contacts the oil pipe head body 1. By rotating the adjusting rod 1051… The arc-shaped retaining plate 2013 can be pushed inward to reset it, facilitating the removal of the metal seal hanger body 2. The sealing plate improves the sealing effect between the baffle 1052 and the internal groove 103, reducing the probability of fluid leakage. A sealing ring assembly 205 is fitted around the periphery of the metal seal hanger body 2 near the bottom. A metal sealing ring 206 is fitted around the periphery of the metal seal hanger body 2 near the bottom and above the limiting ring 104. The sealing ring assembly 205 and the metal sealing ring 206 improve the sealing effect between the oil pipe head body 1 and the metal seal hanger body 2. The limiting component 201 includes a return spring 2011, which is fixedly connected to the metal seal hanger body 2. A slide rod 2012 is fixedly connected to the outer end of 011. The slide rod 2012 is slidably connected to the metal sealing hanger body 2. An arc-shaped retaining plate 2013 is welded to the outer end of the slide rod 2012. The arc-shaped retaining plate 2013 abuts against the built-in groove 103. The slide rod 2012 can be continuously pushed outward by the return spring 2011, thereby causing it to drive the arc-shaped retaining plate 2013 to be embedded in the built-in groove 103, limiting the up-and-down movement of the metal sealing hanger body 2 in the peripheral direction and reducing the probability of displacement. The top of the baffle 203 has a threaded opening 2031. The threaded opening 2031 allows the external adapter threaded rod to be threadedly connected to the baffle 203, which is convenient when the limiting component 201 moves to the built-in groove 103.By pulling the externally connected threaded rod, the baffle 203 moves upward, allowing the arc-shaped clamping plate 2013 to smoothly embed into the built-in groove 103, thus improving operational stability.

[0038] The working process of this utility model is as follows: When installing and using a collision-resistant metal sealing suspension device, initially, the baffle 203 is located at the bottom of the slide groove 202, the inner side of the arc-shaped clamping plate 2013 is in contact with the metal sealing suspension device body 2, and the outer side abuts against the inner side of the baffle 203, while the return spring 2011 is also in a compressed state. The metal sealing suspension device body 2 is then inserted into the oil pipe head body 1 from the top, causing the conical sealing ring 204 to be inserted into the limiting ring 104, limiting its bottom. At this time, the limiting component 201 will also... Positioned in the built-in groove 103, the external threaded rod is rotated into the threaded opening 2031. After a secure connection, the external threaded rod is pulled upwards, causing the baffle 203 to slide upwards within the slide groove 202, disengaging from the arc-shaped retaining plate 2013. Without the baffle 203's restraint, the return spring 2011 pushes the slide rod 2012 outwards, causing the slide rod 2012 to drive the arc-shaped retaining plate 2013 into the built-in groove 103, and bringing the outer side of the arc-shaped retaining plate 2013 into contact with the adjusting rod 1051. The metal seal hanger body 2 is then positioned and fixed vertically and peripherally. Next, the external threaded rod is rotated and disassembled. The sealing cover 101 is fixed to the top of the oil pipe head body 1 by rotating the bolts. The first threaded rod 1021 is then rotated, causing the pressure block 1022 to move downwards. This, combined with the limiting ring 104, further secures the vertical position of the metal seal hanger body 2. When the metal seal hanger body 2 needs to be removed, the sealing cover 101 is opened first. Rotate the adjusting rod 1051 to push the arc-shaped clamping plate 2013 inward, remove it from the built-in groove 103, and make the inner side of the arc-shaped clamping plate 2013 fit against the outer periphery of the metal seal hanger body 2. Repeat the above steps to take out the external threaded rod, make its threaded opening 2031 threaded connection, and press it down to make the baffle 203 slide through the slide groove 202 to the outside of the arc-shaped clamping plate 2013 to limit the arc-shaped clamping plate 2013. After the arc-shaped clamping plate 2013 is retracted, the metal seal hanger body 2 can be taken out from the inside of the oil pipe head body.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A collision-resistant metal sealing suspension device, comprising an oil pipe head body (1), characterized in that: The body of the oil pipe head (1) is equipped with a metal sealing hanger body (2). The top of the oil pipe head body (1) is fixed with a sealing cap (101) by bolts. The top left and right sides of the sealing cap (101) are connected to the bottom and fixed components (102). The inside of the oil pipe head body (1) is provided with an internal groove (103). The inside of the oil pipe head body (1) is welded with a limit ring (104) near the bottom. The outside of the oil pipe head body (1) is symmetrically installed with reset components (105) near the left and right sides. The outer periphery of the metal sealing hanger body (2) is close to the left and right sides, and a limiting component (201) is installed inside the built-in groove (103). The left and right sides of the metal sealing hanger body (2) near the top are provided with a sliding groove (202) corresponding to the limiting component (201). A baffle (203) is slidably connected inside the sliding groove (202).

2. The anti-collision metal sealing suspension device according to claim 1, characterized in that: The top of the sealing cap (101) has a through hole near the center that corresponds to the metal sealing hanger body (2), and a sealing gasket is bonded to the bottom of the sealing cap (101) where it contacts the oil pipe head body (1).

3. The anti-collision metal sealing suspension device according to claim 1, characterized in that: The fixing component (102) includes a first threaded rod (1021), which is threadedly connected to the sealing cover (101). A pressure block (1022) is rotatably connected to the bottom of the first threaded rod (1021), and the pressure block (1022) abuts against the metal sealing hanger body (2).

4. The anti-collision metal sealing suspension device according to claim 1, characterized in that: The inner side of the limiting ring (104) is a downward inclined surface. The metal sealing hanger body (2) is located near the bottom periphery and is fitted with a conical sealing ring (204) inside the limiting ring (104). The conical sealing ring (204) is inserted into the limiting ring (104).

5. The anti-collision metal sealing suspension device according to claim 1, characterized in that: The reset assembly (105) includes an adjusting rod (1051), which is threadedly connected to the oil pipe head body (1). A baffle (1052) is welded to the outer periphery of one end of the adjusting rod (1051) extending into the inner side of the built-in groove (103). A sealing sheet is bonded to the outer side of the baffle (1052) at the contact point with the oil pipe head body (1).

6. The anti-collision metal sealing suspension device according to claim 1, characterized in that: A sealing ring assembly (205) is fitted around the periphery of the metal sealing hanger body (2) near the bottom, and a metal sealing ring (206) is fitted around the periphery of the metal sealing hanger body (2) near the bottom and above the limiting ring (104).

7. The anti-collision metal sealing suspension device according to claim 1, characterized in that: The limiting component (201) includes a return spring (2011), which is fixedly connected to the metal seal hanger body (2). A slide rod (2012) is fixedly connected to the outer end of the return spring (2011). The slide rod (2012) is slidably connected to the metal seal hanger body (2). An arc-shaped clamping plate (2013) is welded to the outer end of the slide rod (2012). The arc-shaped clamping plate (2013) abuts against the built-in groove (103).

8. The anti-collision metal sealing suspension device according to claim 1, characterized in that: The top of the baffle (203) is provided with a threaded opening (2031).

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