Wellhead protector for oil-gas field development

Abstract

The utility model relates to the technical field of oil-gas field development, in particular to a wellhead protector for oil-gas field development, which comprises a protector body, a support block, a top cover, a fastening component and a sealing component, the fastening component comprises an upper mounting ring, a lower mounting ring, a tension spring and a connecting component, and the top cover is rotatably arranged at the top of the support block. The top cover is turned over to close the opening of the supporting block, the sealing assembly enables the opening to be closed tightly, leakage is prevented, the tension spring is pulled, the two ends of the tension spring tension the upper mounting ring and the lower mounting ring respectively, and the top cover and the supporting block are connected and fixed through traction force of the tension spring. The upper mounting rings, the lower mounting rings and the tension springs are arranged on the outer walls of the supporting blocks and the top cover, meanwhile, the connecting components are used for assisting in connection and fixation, and therefore when the top cover needs to be opened, the top cover can be opened only by pulling the tension springs to be taken down from the lower mounting rings and turning over the top cover, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas field development, in particular to a wellhead protector used for oil and gas field development. Background Art

[0002] An oil and gas field is a place where oil and gas gather. When exploiting resources in an oil and gas field, the prior art generally uses well drilling and installs a wellhead protector on the wellhead. The prior art discloses a wellhead protector for oil and gas field development with announcement number: 202222032844.7. In actual use, if the operator rotates open the top cover to detect the wellhead gas or check the situation in the well, and then rotates the top cover to close it again, there will be a problem of incomplete sealing. The gas in the well will easily escape, and there will even be a phenomenon of accumulated water flowing back into the wellhead in low-lying areas (rainwater), which increases the workload for subsequent exploitation.

[0003] The existing announcement number CN218862575U discloses a wellhead protector for oil and gas field development, including a protector body; a support block is fixedly installed on the top of the protector body, and a top cover is threadedly fixed on the upper end of the support block. A double sealing component is set up, and a first sealing structure is formed by a threaded fixing structure in conjunction with a first annular sealing gasket and an annular gasket block, and a second sealing structure is formed by a second annular sealing gasket and an annular protrusion. The formed double sealing structure can ensure the sealing after the top cover is opened and closed again, thereby preventing gas escape and rainwater backflow.

[0004] However, when the wellhead protector for oil and gas field development is used, it needs a screw top cover and a fastening bolt to be opened or closed, and a lot of time is consumed when rotating the thread, causing inconvenience. Utility Model Content

[0005] The utility model aims to provide a wellhead protector for oil and gas field development, which solves the problem that the wellhead protector for oil and gas field development needs a spiral top cover and a fastening bolt to open or close when in use, and consumes a lot of time when rotating the thread, causing inconvenience.

[0006] To achieve the above-mentioned purpose, the utility model provides a wellhead protector for oil and gas field development, comprising a protector body and a support block, wherein the support block is fixedly connected to the protector body and is located on the top of the protector body, and further comprises a top cover, a fastening assembly and a sealing assembly;

[0007] The top cover is rotatably connected to the support block and is located on the top of the support block. The fastening assembly includes an upper mounting ring, a lower mounting ring, a tension spring and a connecting member. The upper mounting ring is fixedly connected to the top cover and is located on the outer wall of the top cover. The lower mounting ring is fixedly connected to the protector body and is arranged relative to the upper mounting ring. The two ends of the tension spring are respectively connected to the upper mounting ring and the lower mounting ring. The connecting member is respectively connected to the top cover and the support block. The sealing assembly is connected to the top cover.

[0008] Wherein, the connecting component includes a locking column and a locking block, the locking column is fixedly connected to the top cover and is located on the outer wall of the top cover; the locking block is fixedly connected to the supporting block and is locked with the locking column.

[0009] Among them, the sealing assembly includes a first sealing layer, a second sealing layer and a third sealing layer, the first sealing layer is fixedly connected to the support block and is located on the side of the support block close to the protector body; the second sealing layer is fixedly connected to the top cover and is engaged with the first sealing layer; the third sealing layer is fixedly connected to the top cover and extends into the interior of the protector body.

[0010] Wherein, the sealing assembly further comprises a sealing ring, which is fixedly connected to the top cover and is located between the top cover and the support block.

[0011] Wherein, the wellhead protector for oil and gas field development further comprises an insertion rod, which is fixedly connected to the support block and is located on the outer wall of the support block.

[0012] The utility model discloses a wellhead protector for oil and gas field development, wherein the top cover is rotatably arranged on the top of the support block, the top cover is flipped to close the opening of the support block, the sealing component closes it tightly to prevent leakage, the tension spring is pulled so that the two ends of the tension spring respectively tighten the upper mounting ring and the lower mounting ring, the top cover and the support block are connected and fixed by the traction force of the tension spring, in order to increase stability, a plurality of the upper mounting rings, the lower mounting rings and the tension springs are arranged on the outer walls of the support block and the top cover, and at the same time, the connection and fixation are assisted by the connecting member, so that when the top cover needs to be opened, it is only necessary to pull the tension spring to remove it from the lower mounting ring, and the top cover can be opened by flipping it, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1It is a schematic diagram of the overall structure of a wellhead protector for oil and gas field development according to the first embodiment of the utility model.

[0015] Figure 2 It is a cross-sectional view of a wellhead protector for oil and gas field development according to the first embodiment of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the insertion rod of the second embodiment of the utility model.

[0017] In the figure: 101-protector body, 102-support block, 103-top cover, 104-upper mounting ring, 105-lower mounting ring, 106-tension spring, 107-clamping column, 108-clamping block, 109-first sealing layer, 110-second sealing layer, 111-third sealing layer, 112-sealing ring, 201-insertion rod. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figure 1 and Figure 2 ,in, Figure 1 It is a schematic diagram of the overall structure of a wellhead protector for oil and gas field development according to the first embodiment of the utility model. Figure 2 It is a cross-sectional view of a wellhead protector for oil and gas field development according to the first embodiment of the utility model. The utility model provides a wellhead protector for oil and gas field development: comprising a protector body 101, a support block 102, a top cover 103, a fastening assembly and a sealing assembly, wherein the fastening assembly comprises an upper mounting ring 104, a lower mounting ring 105, a tension spring 106 and a connecting member, wherein the connecting member comprises a snap-fit ​​column 107 and a snap-fit ​​block 108, and the sealing assembly comprises a first sealing layer 109, a second sealing layer 110, a third sealing layer 111 and a sealing ring 112. The above-mentioned scheme solves the problem that the wellhead protector for oil and gas field development in the background technology needs a spiral top cover 103 and a fastening bolt to be opened or closed when in use, and consumes a lot of time when rotating the thread, causing inconvenience. It can be understood that the above-mentioned scheme can be used when the wellhead protector is convenient to open or close, and can also be used to solve the sealing problem of the wellhead protector.

[0021] According to this specific embodiment, the support block 102 is fixedly connected to the protector body 101 and is located on the top of the protector body 101. The protector body 101 is installed in the wellhead, and the support block 102 is fixed to the ground, thereby fixing the protector body 101.

[0022] Among them, the top cover 103 is rotatably connected to the support block 102 and is located on the top of the support block 102, the upper mounting ring 104 is fixedly connected to the top cover 103 and is located on the outer wall of the top cover 103, the lower mounting ring 105 is fixedly connected to the protector body 101 and is arranged relative to the upper mounting ring 104, the two ends of the tension spring 106 are respectively connected to the upper mounting ring 104 and the lower mounting ring 105, the connecting members are respectively connected to the top cover 103 and the support block 102, and the sealing assembly is connected to the top cover 103. The top cover 103 is rotatably connected to the support block 102 through a pin shaft or a hinge, etc. There are multiple upper mounting rings 104 and lower mounting rings 105, which are respectively fixed on the top cover 103 and the support block 102 and arranged opposite to each other. The tension spring 106 is arranged between the upper mounting ring 104 and the lower mounting ring 105, and the two ends of the tension spring 106 respectively pull the upper mounting ring 104 and the lower mounting ring 105, so that the support block 102 is firmly connected to the top cover 103. The tension spring 106 is pulled to move out of the upper mounting ring 104 or the lower mounting ring 105 to open the top cover 103. The sealing assembly seals the top cover 103 and the support block 102, and the connecting member assists in fixing the top cover 103 and the support block 102.

[0023] Secondly, the snap-fitting column 107 is fixedly connected to the top cover 103 and is located on the outer wall of the top cover 103; the snap-fitting block 108 is fixedly connected to the support block 102 and snap-fits with the snap-fitting column 107. The snap-fitting column 107 and the snap-fitting block 108 snap-fit ​​each other, and after the top cover 103 is closed, the snap-fitting column 107 extends into the snap-fitting block 108 to snap-fit, which helps to stabilize the connection and facilitate opening.

[0024] At the same time, the first sealing layer 109 is fixedly connected to the support block 102 and is located on the side of the support block 102 close to the protector body 101; the second sealing layer 110 is fixedly connected to the top cover 103 and is engaged with the first sealing layer 109; the third sealing layer 111 is fixedly connected to the top cover 103 and extends into the interior of the protector body 101. A boss is formed between the support block 102 and the protector body 101, the first sealing layer 109 is fixed on the boss, the top cover 103 has a protrusion, the protrusion extends into the interior of the support block 102 and cooperates with it, the second sealing layer 110 is fixed at the end of the protrusion and is engaged with the first sealing layer 109, after closing the top cover 103, the second sealing layer 110 is embedded in the first sealing layer 109 to fill the gap and prevent leakage, the third sealing layer 111 is fixed at the end of the protrusion and extends into the interior of the protector body 101 to further fill the gap and prevent leakage.

[0025] In addition, the sealing ring 112 is fixedly connected to the top cover 103 and is located between the top cover 103 and the support block 102. The sealing ring 112 is located between the top cover 103 and the support block 102 to further fill the gap and prevent leakage.

[0026] A wellhead protector for oil and gas field development according to the present embodiment is used, and the top cover 103 is flipped to achieve closing. At this time, the top cover 103 extends into the interior of the support block 102, the first sealing layer 109 is engaged with the second sealing layer 110, and the third sealing layer 111 extends into the interior of the protector body 101. The sealing ring 112 is placed between the top cover 103 and the support block 102 to prevent leakage. At the same time, the locking column 107 is locked into the locking block 108 to fix the top cover 103, and the tension spring 106 is pulled to connect the upper mounting ring 104 and the lower mounting ring 105 to fix the top cover 103, which is easy to operate. When opening the top cover 103, the tension spring 106 is pulled to keep one end away from the upper mounting ring 104 or the lower mounting ring 105, and the top cover 103 is flipped, which is easy to operate.

[0027] The second embodiment of the present application is:

[0028] Based on the first embodiment, please refer to Figure 3 ,in, Figure 3 2 is a schematic diagram of the structure of the plug rod 201 of the second embodiment of the utility model. The wellhead protector for oil and gas field development in this embodiment also includes the plug rod 201.

[0029] According to this specific embodiment, the insertion rod 201 is fixedly connected to the support block 102 and is located on the outer wall of the support block 102. There are multiple insertion rods 201, each of which is hollow inside and has a pointed top with multiple through holes.

[0030] A wellhead protector for oil and gas field development according to the present embodiment is used. After the protector body 101 is installed into the wellhead, the insertion rod 201 is inserted into the ground, and then concrete is filled from the top opening of the insertion rod 201. The concrete flows out through the through hole to fix the insertion rod 201 to the ground, thereby fixing the support block 102 and the protector body 101.

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A wellhead protector for oil and gas field development, comprising a protector body and a support block, wherein the support block is fixedly connected to the protector body and is located on the top of the protector body, characterized in that: Also includes a top cover, a fastening assembly and a sealing assembly; The top cover is rotatably connected to the support block and is located on the top of the support block. The fastening assembly includes an upper mounting ring, a lower mounting ring, a tension spring and a connecting member. The upper mounting ring is fixedly connected to the top cover and is located on the outer wall of the top cover. The lower mounting ring is fixedly connected to the protector body and is arranged relative to the upper mounting ring. The two ends of the tension spring are respectively connected to the upper mounting ring and the lower mounting ring. The connecting member is respectively connected to the top cover and the support block. The sealing assembly is connected to the top cover.

2. The wellhead protector for oil and gas field development according to claim 1, characterized in that: The connecting component comprises a locking column and a locking block. The locking column is fixedly connected to the top cover and is located on the outer wall of the top cover. The locking block is fixedly connected to the supporting block and is locked with the locking column.

3. The wellhead protector for oil and gas field development according to claim 1, characterized in that: The sealing assembly includes a first sealing layer, a second sealing layer and a third sealing layer. The first sealing layer is fixedly connected to the support block and is located on a side of the support block close to the protector body; the second sealing layer is fixedly connected to the top cover and is engaged with the first sealing layer; the third sealing layer is fixedly connected to the top cover and extends into the interior of the protector body.

4. The wellhead protector for oil and gas field development as claimed in claim 3, characterized in that: The sealing assembly also includes a sealing ring, which is fixedly connected to the top cover and is located between the top cover and the support block.

5. The wellhead protector for oil and gas field development according to claim 1, characterized in that: The wellhead protector for oil and gas field development further comprises an insertion rod, which is fixedly connected to the support block and is located on the outer wall of the support block.

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