Oil injection and extraction pipe four-way structure for wellhead device of gas storage

Abstract

The utility model relates to the technical field of four-way structures, and discloses a four-way structure for an oil injection and extraction pipe of a wellhead device of a gas storage, which comprises a four-way pipe body and two side pipes, one side of the outer wall of the four-way pipe body is provided with two symmetrically arranged mounting cavities, the inner walls of the two mounting cavities are connected with mounting blocks in a sliding manner, and the mounting blocks are connected with the four-way pipe body. Mounting plates are fixedly connected to the sides, away from the four-way pipe body, of the two mounting blocks, protective covers are fixedly connected to the sides, away from each other, of the two mounting plates, the two protective covers are arranged on the outer walls of the two side pipes in a sleeving mode correspondingly, and a spring cavity is formed between the two mounting cavities in a penetrating mode. According to the oil injection and extraction pipe four-way structure for the gas storage wellhead device, when a user uses the four-way pipe body to inject and extract natural gas and other raw materials, the outer walls of the four-way pipe body and the two side pipes can be sleeved with the two protective covers, and then outdoor rainwater or sunlight can be prevented from directly acting on the four-way pipe body and the two side pipes; therefore, the probability of equipment damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of four-way structures, in particular to a four-way structure for injection and production oil pipes of a wellhead device of a gas storage reservoir. Background Art

[0002] The gas storage wellhead refers to the wellhead used to inject and extract natural gas from the gas storage (underground gas storage), while the injection and production pipeline refers to the pipeline used to transport crude oil, natural gas, water and other liquids or gases during oil field development and production. The connecting structure between the gas storage wellhead and the injection and production pipeline is the gas tree, also known as the oil tree.

[0003] After searching, it is found that the patent with the authorization publication number CN214365978U discloses an oil pipe four-way device for an oil tree, including a base, a second BT sealing ring is arranged inside the base, and a second grease injection port is arranged outside the second BT sealing ring, a first oil seal is installed on the outer wall of the second grease injection port, an oil pipe head is installed on the top, and an inner ring is installed on the surface wall of the oil pipe head, a rotating bead is arranged on the outer wall of the inner ring, and an auxiliary installation block is arranged on the outer wall of the rotating bead. The device installs an inner ring on the surface wall of the oil pipe head, and a rotating bead is arranged outside the inner ring, and an auxiliary installation block is installed outside the rotating bead. When installing water pipes on both sides, the columnar block is rotated to the side and the water pipe is placed above the auxiliary installation block. There is no need to lift the water pipe manually, which reduces labor. When installing the water pipe on the other side, the columnar block is rotated to assist in the installation of the water pipe while maintaining the balance of the oil pipe head, which reduces the difficulty of installing the water pipe.

[0004] However, the above-mentioned oil pipe spool device for the Christmas tree still has the following problems:

[0005] The tubing spool used in Christmas trees is usually installed outdoors near the wellhead. However, because it is often exposed to rain and sun outdoors, it is likely to accelerate the aging of materials such as metal and rubber in the Christmas tree, reduce its durability and corrosion resistance, increase the probability of equipment damage, and thus increase safety risks. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a four-way structure for injection and production oil pipes for a gas storage wellhead device. When the user uses the four-way pipe body to inject and produce natural gas and other raw materials, two protective covers can be sleeved on the outer walls of the four-way pipe body and the two side pipes, thereby preventing outdoor rain or sunlight from directly acting on the four-way pipe body and the two side pipes, thereby reducing the probability of equipment damage.

[0007] The utility model provides the following technical solutions: a four-way structure for injection and production oil pipes of a wellhead device of a gas storage reservoir, comprising a four-way pipe body and two side pipes installed on both sides of the four-way pipe body, one side of the outer wall of the four-way pipe body is provided with two symmetrically arranged installation cavities, the inner walls of the two installation cavities are slidably connected with installation blocks, the two installation blocks are fixedly connected with installation plates on the sides away from the four-way pipe body, the two installation plates are fixedly connected with protective covers on the sides away from each other, the two protective covers are respectively sleeved on the outer walls of the two side pipes, a spring cavity is penetrated between the two installation cavities, the inner wall of the spring cavity is connected with a limiting component, the two ends of the limiting component respectively penetrate the two ends of the spring cavity and are connected with the two installation plates.

[0008] Furthermore, the limit assembly includes a telescopic spring, two plugs and two push plates. A slide groove is formed through the side of the spring cavity away from the four-way tube body, and sockets are formed on the adjacent sides of the two mounting blocks. The two ends of the telescopic spring are fixedly connected to the same end of the two plugs, and the other ends of the two plugs respectively penetrate the two ends of the spring cavity and are slidably connected to the inner walls of the two sockets. The same end of the two push plates is fixedly connected to one end of the two plugs located in the spring cavity, and the other ends of the two plugs penetrate the slide groove and are slidably connected to the inner wall of the slide groove.

[0009] Furthermore, the two protective covers are designed to be split at one side away from the mounting plate.

[0010] Furthermore, a plurality of limiting Velcro strips are fixedly connected to one side of the protective cover away from the mounting plate.

[0011] Furthermore, the outer walls of the two protective covers are provided with a plurality of folding marks.

[0012] Furthermore, a push groove is formed through one side of the two adjacent mounting plates, and the two push grooves are connected to the slide groove.

[0013] Furthermore, shielding Velcro is bonded to adjacent parts of the two protective covers.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] This kind of injection and production oil pipe four-way structure for the wellhead device of the gas storage reservoir can prevent outdoor rain or sunlight from directly acting on the four-way pipe body and the two side pipes when the user uses the four-way pipe body to inject and produce natural gas and other raw materials, thereby reducing the probability of equipment damage by installing two protective covers on the outer walls of the four-way pipe body and the two side pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall appearance of the utility model;

[0017] Figure 2This is a schematic diagram of the overall appearance of the four-way pipe body of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall appearance of two protective covers of the utility model;

[0019] Figure 4 This is a schematic diagram of the overall appearance of a single protective cover of the utility model;

[0020] Figure 5 The utility model is based on Figure 4 The enlarged schematic diagram of point A in the middle;

[0021] Figure 6 This is a schematic diagram of another viewing angle of the four-way pipe body of the utility model;

[0022] Figure 7 The utility model is based on Figure 6 The enlarged schematic diagram of point B in the middle;

[0023] Figure 8 It is a partial cross-sectional schematic diagram of the four-way pipe body of the utility model;

[0024] Fig. 9 The utility model is based on Figure 8 Enlarged schematic diagram of point C in the middle.

[0025] In the figure: 1. Cross-tube body; 2. Side tube; 3. Protective cover; 4. Limiting Velcro; 5. Blocking Velcro; 6. Mounting plate; 7. Mounting block; 8. Plug; 9. Telescopic spring; 10. Push plate; 101. Mounting cavity; 102. Slide groove; 103. Spring cavity; 301. Folding mark; 601. Push groove; 701. Socket. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] See also Figure 1-Figure 9A four-way structure for injection and production oil pipes of a gas storage wellhead device comprises a four-way pipe body 1 and two side pipes 2 installed on both sides of the four-way pipe body 1. Two symmetrically arranged installation cavities 101 are provided on one side of the outer wall of the four-way pipe body 1. The inner walls of the two installation cavities 101 are slidably connected with installation blocks 7. The two installation blocks 7 are fixedly connected with installation plates 6 on the sides away from the four-way pipe body 1. The two installation plates 6 are fixedly connected with protective covers 3 on the sides away from each other. The two protective covers 3 are respectively sleeved on the outer walls of the two side pipes 2. A spring cavity 103 is penetrated between the two installation cavities 101. The inner wall of the spring cavity 103 is connected with a limiting component. The two ends of the limiting component respectively penetrate the two ends of the spring cavity 103 and are connected to the two installation plates 6.

[0028] The utility model is similar to the existing four-way structure for injection and production of oil pipes used in gas storage wellhead devices, such as the oil pipe four-way device for oil production trees disclosed in the patent with publication number CN214365978U. The main improvement of the utility model is that when the user uses the four-way pipe body 1 to inject and produce natural gas and other raw materials, two protective covers 3 can be set on the outer walls of the four-way pipe body 1 and the two side pipes 2 to prevent outdoor rain or sunlight from directly acting on the four-way pipe body 1 and the two side pipes 2, thereby reducing the probability of equipment damage. Figures 1 to 9 As shown, when installing the four-way structure of the injection and production oil pipe of the wellhead device of the gas storage reservoir in the utility model, first, the two protective covers 3 are inserted from the side of the two side pipes 2 away from the four-way pipe body 1, and then the two mounting blocks 7 are respectively inserted into the two mounting cavities 101 and fixed by the limit assembly, and then formally put into use. During use, because the outer walls of the four-way pipe body 1 and the two side pipes 2 are protected and shielded by the protective covers 3, outdoor rain and sunlight can be isolated, and rain or sunlight can be prevented from directly acting on the four-way pipe body 1 and the two side pipes 2, thereby reducing the probability of equipment damage; and it is worth mentioning here that: the material of the above-mentioned protective cover 3 can be glass fiber, ceramic fiber or rock wool, etc., of course, it can also be other materials, as long as it can achieve the functions of heat insulation and rain protection, and there is no specific limitation.

[0029] Please refer to Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig. 9The limit assembly includes a telescopic spring 9, two plugs 8 and two push plates 10. A slide groove 102 is provided on the side of the spring cavity 103 away from the four-way pipe body 1. Plug holes 701 are provided on the adjacent sides of the two mounting blocks 7. The two ends of the telescopic spring 9 are fixedly connected to the same end of the two plugs 8 respectively. The other ends of the two plugs 8 respectively penetrate the two ends of the spring cavity 103 and are slidably connected to the inner walls of the two plug holes 701 respectively. The same end of the two push plates 10 is fixedly connected to one end of the two plugs 8 located in the spring cavity 103 respectively. The other ends of the two plugs 8 penetrate the slide groove 102 and are slidably connected to the inner wall of the slide groove 102.

[0030] More specifically, before inserting the mounting block 7 into the mounting cavity 101, it is necessary to manually push the push plate 10 to one side first. The push plate 10 is forced to squeeze the telescopic spring 9, so that the plug 8 can be retracted into the spring cavity 103, and then the mounting block 7 continues to slide down. When the mounting block 7 drops to the bottom surface of the mounting cavity 101, the push plate 10 is released, and the telescopic spring 9 restores its deformation, so that the plug 8 can be passed through the spring cavity 103 again and inserted into the socket 701 of the mounting block 7, thereby preventing the mounting block 7 from falling off by itself without canceling the limit.

[0031] Please refer to Figure 1 , Figure 3 and Figure 4 The side of the two protective covers 3 away from the mounting plate 6 is a split design. By setting it as a split design, firstly, it is convenient for the early installation, and it is not necessary to insert the side pipe 2 from the end away from the four-way pipe body 1, and it can be directly bundled from one side of the side pipe 2, which is more convenient and quick; in addition, other docking pipes can be connected to the two side pipes 2, which makes it inconvenient to replace the protective cover 3, and it can be quickly removed and replaced by unfolding it from one side of the side pipe 2.

[0032] Please refer to Figure 1 , Figure 3 and Figure 4 , a plurality of limiting Velcro 4 are fixedly connected to the side of the protective cover 3 away from the mounting plate 6. By providing the limiting Velcro 4, firstly, the protective cover 3 can be prevented from automatically unfolding during use; secondly, the limiting Velcro 4 can be used to fix the protective cover 3 tightly to the outer wall of the side tube 2, thereby further increasing the protective effect; and it should be particularly noted here that: because the protective cover 3 is a split design, one end of the limiting Velcro 4 can be fixed to one side of the protective cover 3, and after the protective cover 3 is wrapped around the side tube 2, the other end of the limiting Velcro 4 can be glued to the other side of the protective cover 3 for fixing.

[0033] Please refer to Figure 1 , Figure 3 and Figure 4The outer walls of the two protective covers 3 are provided with a plurality of folding marks 301. By providing a plurality of folding marks 301, the protective covers 3 can be folded and stored more conveniently when they are not installed or have been removed.

[0034] Please refer to Figure 4 , the two adjacent sides of the two mounting plates 6 are penetrated with a push groove 601, and the two push grooves 601 are communicated with the slide groove 102. By setting the push groove 601, it is more convenient to push the push plate 10 when pushing the push plate 10.

[0035] Please refer to Figure 1 and Figure 3 , the adjacent parts of the two protective covers 3 are bonded with shielding Velcro 5. By setting the shielding Velcro 5, firstly, the connection of the two protective covers 3 can be shielded to prevent rain or sunlight from directly acting on the four-way pipe body 1; in addition, the mounting plate 6 and the push groove 601 can be shielded to prevent dust and debris from entering the spring cavity 103 from the push groove 601 and the slide groove 102, and jamming the telescopic spring 9, thereby affecting the subsequent disassembly and replacement; and it is worth noting here that the shielding Velcro 5 can be fixedly connected to one protective cover 3 and then bonded to the other protective cover 3 like the limiting Velcro 4, or it can be bonded to both protective covers 3, and there is no specific limitation; it is also necessary to explain that the material of the shielding Velcro 5 can be the same as the material of the protective cover 3.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A four-way structure for oil injection and production pipes for a gas storage wellhead device, comprising a four-way pipe body (1) and two side pipes (2) installed on both sides of the four-way pipe body (1), characterized in that: Two symmetrically arranged installation cavities (101) are provided on one side of the outer wall of the four-way pipe body (1); the inner walls of the two installation cavities (101) are slidably connected with installation blocks (7); the two installation blocks (7) are fixedly connected with installation plates (6) on the sides away from the four-way pipe body (1); the two installation plates (6) are fixedly connected with protection covers (3) on the sides away from each other; the two protection covers (3) are respectively sleeved on the outer walls of the two side pipes (2); a spring cavity (103) is provided between the two installation cavities (101); the inner wall of the spring cavity (103) is connected with a limiting assembly; the two ends of the limiting assembly respectively pass through the two ends of the spring cavity (103) and are connected to the two installation plates (6).

2. The four-way structure of the injection and production oil pipe for the wellhead device of the gas storage reservoir according to claim 1 is characterized by: The limit assembly comprises a telescopic spring (9), two plugs (8) and two push plates (10); a slide groove (102) is provided through the side of the spring cavity (103) away from the four-way pipe body (1); two adjacent sides of the two mounting blocks (7) are provided with plug holes (701); two ends of the telescopic spring (9) are respectively fixedly connected to the same end of the two plugs (8); the other ends of the two plugs (8) respectively penetrate the two ends of the spring cavity (103) and are respectively slidably connected to the inner walls of the two plug holes (701); the same end of the two push plates (10) is respectively fixedly connected to one end of the two plugs (8) located in the spring cavity (103); the other ends of the two plugs (8) penetrate the slide groove (102) and are slidably connected to the inner wall of the slide groove (102).

3. The four-way structure of the injection and production oil pipe for the wellhead device of the gas storage reservoir according to claim 1 or 2, characterized in that: The sides of the two protective covers (3) away from the mounting plate (6) are of split-open design.

4. The four-way structure of the injection and production oil pipe for the wellhead device of the gas storage reservoir according to claim 1 or 2, characterized in that: A plurality of position limiting Velcro strips (4) are fixedly connected to one side of the protective cover (3) away from the mounting plate (6).

5. The four-way structure of the injection and production oil pipe for the wellhead device of the gas storage reservoir according to claim 1 or 2, characterized in that: The outer walls of the two protective covers (3) are each provided with a plurality of folding marks (301).

6. The four-way structure of the injection and production oil pipe for the wellhead device of the gas storage reservoir according to claim 1 or 2, characterized in that: A push groove (601) is formed through one adjacent side of the two mounting plates (6), and the two push grooves (601) are communicated with the slide groove (102).

7. The four-way structure of the injection and production oil pipe for the wellhead device of the gas storage reservoir according to claim 1 or 2, characterized in that: Adjacent portions of the two protective covers (3) are bonded with shielding Velcro (5).

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