Detachable heat preservation device for wellhead of oil field

Abstract

The utility model discloses a detachable oil field well mouth heat preservation device which comprises a heat preservation device body, a cover plate is arranged on the top of the heat preservation device body, moving structures are arranged on the two sides of the top of the cover plate, clamping grooves are formed in the two sides of the top of the heat preservation device body, and each moving structure comprises a box body which is located on the top of the cover plate. During use, firstly, the square groove is separated from the square block, then the dustproof cover is rotated, secondly, the L-shaped block is rotated upwards to rotate with the cross rod as the center, the L-shaped block rotates to drive the moving block to move towards the inner side, the moving block moves towards the inner side to drive the clamping block to move towards the side, and the clamping block moves towards the inner side to be separated from the clamping groove. The detachable oil field wellhead heat preservation device has the advantage of being convenient to disassemble, the stability of the heat preservation device is improved, and meanwhile the problem that time and labor are wasted when bolts are fixed to disassemble the cover plate is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil fields, in particular to a detachable oil field wellhead insulation device. Background Art

[0002] The sum of oil and gas reservoirs in the same oil and gas producing area under the control of a single geological structure (or formation) factor. An oil and gas field may have one or more oil and gas reservoirs. The area mainly composed of oil reservoirs is called an oil field, and the area mainly composed of gas reservoirs is called a gas field. According to the geological factors controlling the oil and gas producing area, oil and gas fields are divided into three categories: structural oil and gas fields, which refer to oil and gas producing areas controlled by a single structural factor, such as folds and faults; stratigraphic oil and gas fields, which refer to oil-bearing areas controlled by stratigraphic factors (such as unconformity, pinch-out and lithology changes of strata) in the background of regional anticlines or monoclinal structures; composite oil and gas fields, which refer to oil and gas producing areas controlled by stratigraphic factors (such as unconformity, pinch-out and lithology changes of strata); An oil and gas field is an area that is not controlled by a single structural or stratigraphic factor but by multiple geological factors. An oil field refers to a specific area where crude oil is produced. Sometimes it is a general term for oil layers concentrated underground in a specific area. In a broad sense, several oil regions are collectively referred to as an oil field. An oil field is naturally occurring hydrocarbons underground that are liquid under surface conditions. On the contrary, if they are still gas under surface conditions, they are called natural gas. A specific area for natural gas production is a natural gas field. The size of recoverable oil reserves determines its value of exploitation, which requires accurate calculation of the size of the oil-bearing area, the number and thickness of oil layers, and oil reserves per unit area.

[0003] When the wellhead of an oil field is sealed and insulated, an insulation device is required to insulate the wellhead. The patent publication number is CN206592100U. The utility model discloses a wellhead insulation device including a main body cover, an upper arm cover and an upper valve cover connected to the upper arm cover are provided on at least one side of the upper part of the main body cover, and a lower arm cover and a lower valve cover connected to the lower arm cover are provided on at least one side of the lower part of the main body cover. The wellhead insulation device as a whole is composed of an inner layer, an insulation layer and an outer layer from the inside to the outside. The utility model wellhead insulation device has the advantages of being easy to use, fireproof, waterproof and heat-insulating.

[0004] The above-mentioned prior art solutions have the following defects: the cover plate of the existing heat preservation device is fixed by bolts, which is time-consuming and labor-intensive when removing the cover plate. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a detachable oilfield wellhead insulation device, which has the advantage of easy disassembly and solves the problem that the cover plate of the existing insulation device is fixed by bolts, which is time-consuming and labor-intensive when disassembling the cover plate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable oilfield wellhead insulation device, comprising an insulation device, a cover plate is arranged on the top of the insulation device, movable structures are arranged on both sides of the top of the cover plate, and card slots are opened on both sides of the top of the insulation device, and the movable structure comprises a box body, the box body is located on the top of the cover plate, an L-shaped block is arranged on the outer side of the inner wall of the box body, the right side of the L-shaped block passes through the outer side of the box body, the back side of the L-shaped block is movably connected to a cross bar through a bearing, the right side of the front side of the L-shaped block is movably connected to a moving block through a first round block, and the right side of the back side of the moving block is movably connected to a card block through a second round block, and the card block is used in conjunction with the card slot.

[0007] As a preferred embodiment of the present invention, a slide groove is provided on the back side of the inner wall of the box body, a slider is slidably connected inside the slide groove, and a front side of the slider is fixedly connected to a back side of the block.

[0008] As a preferred embodiment of the present invention, an elastic sheet is fixedly connected to the inner side of the inner wall of the box body, and the outer side of the elastic sheet is fixedly connected to the inner side of the clamping block.

[0009] As a preferred embodiment of the utility model, a movable hole is opened on the top of the left side of the box body, and a fixing block is fixedly connected to the inner side of the top of the box body.

[0010] As a preferred embodiment of the utility model, the inner side of the fixed block is movably connected to a dust cover via a third round block, a square groove is provided at the bottom of the dust cover, and square blocks are fixedly connected to both sides of the top of the cover plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. When the utility model is used, the square groove is first separated from the square block and then the dust cover is rotated, and then the L-shaped block is rotated upward to rotate around the cross bar. The rotation of the L-shaped block drives the moving block to move inward, and the moving block moves inward to drive the clamping block to move sideways. The clamping block moves inward and separates from the clamping groove, and the cover plate can be removed, achieving the effect of easy disassembly. The detachable oilfield wellhead insulation device has the advantage of easy disassembly, improves the stability of the insulation device, and avoids the problem of time-consuming and labor-intensive bolt fixing when removing the cover plate.

[0013] 2. The utility model can drive the card block to move inwards through the setting of the moving structure so that the card block is separated from the card slot, and the cover plate can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the structural insulation device of the utility model;

[0015] Figure 2 This is the front view of the structural insulation device of the utility model;

[0016] Figure 3 This is a top view of the structural box of the utility model;

[0017] Figure 4 The utility model structure Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. Insulation device; 2. Cover plate; 3. Moving structure; 301. Box body; 302. L-shaped block; 303. Cross bar; 304. Moving block; 305. Block; 4. Slot; 5. Slide; 6. Slider; 7. Shrapnel; 8. Movable hole; 9. Fixed block; 10. Dust cover; 11. Square slot; 12. Block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 4 As shown, the utility model provides a detachable oilfield wellhead insulation device, including an insulation device 1, a cover plate 2 is arranged on the top of the insulation device 1, and movable structures 3 are arranged on both sides of the top of the cover plate 2. Card slots 4 are opened on both sides of the top of the insulation device 1, and the movable structure 3 includes a box body 301, the box body 301 is located on the top of the cover plate 2, an L-shaped block 302 is arranged on the outer side of the inner wall of the box body 301, the right side of the L-shaped block 302 passes through the outer side of the box body 301, the back side of the L-shaped block 302 is movably connected with a cross bar 303 through a bearing, the right side of the front side of the L-shaped block 302 is movably connected with a movable block 304 through a first round block, and the right side of the back side of the movable block 304 is movably connected with a card block 305 through a second round block, and the card block 305 is used in conjunction with the card slot 4.

[0021] refer to Figure 3 A slide groove 5 is provided on the back of the inner wall of the box body 301 , and a slider 6 is slidably connected inside the slide groove 5 , and the front side of the slider 6 is fixedly connected to the back side of the block 305 .

[0022] As a technical optimization solution of the present invention, by setting the slide groove 5 and the slider 6, the block 305 can be limited to prevent the block 305 from shaking during the movement.

[0023] refer to Figure 4 The inner side of the inner wall of the box body 301 is fixedly connected with a spring piece 7 , and the outer side of the spring piece 7 is fixedly connected with the inner side of the clamping block 305 .

[0024] As a technical optimization solution of the present invention, the arrangement of the spring piece 7 can drive the clamping block 305 to reset, thereby preventing the clamping block 305 from being unable to accurately fix the cover plate 2 .

[0025] refer to Figure 4 A movable hole 8 is opened on the top of the left side of the box body 301, and a fixing block 9 is fixedly connected to the inner side of the top of the box body 301.

[0026] As a technical optimization solution of the utility model, the L-shaped block 302 can be rotated through the setting of the movable hole 8, and the third circular block can be supported through the setting of the fixed block 9.

[0027] refer to Figure 4 The inner side of the fixed block 9 is movably connected with a dust cover 10 through a third round block, a square groove 11 is provided at the bottom of the dust cover 10, and square blocks 12 are fixedly connected to both sides of the top of the cover plate 2.

[0028] As a technical optimization solution of the utility model, the provision of the dust cover 10 can prevent dust from entering the interior of the box body 301 through the movable hole 8, and the provision of the square groove 11 and the block 12 can limit and fix the dust cover 10.

[0029] The working principle and use process of the utility model are as follows: when in use, first separate the square groove 11 from the square block 12 and then rotate the dust cover 10, and then rotate the L-shaped block 302 upward to rotate around the cross bar 303, the rotation of the L-shaped block 302 drives the moving block 304 to move inward, the moving block 304 moves inward and drives the clamping block 305 to move sideways, the clamping block 305 moves inward and separates from the clamping groove 4, and the cover plate 2 can be removed, achieving the effect of easy disassembly.

[0030] In summary: the detachable oilfield wellhead insulation device, through the use of insulation device 1, cover plate 2, movable structure 3, box body 301, L-shaped block 302, cross bar 303, movable block 304, clamping block 305 and clamping slot 4, solves the problem that the cover plate of the existing insulation device is fixed by bolts, and the bolt fixing is time-consuming and labor-intensive when removing the cover plate.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable oilfield wellhead insulation device, comprising an insulation device (1), characterized in that: The top of the heat preservation device (1) is provided with a cover plate (2), and both sides of the top of the cover plate (2) are provided with a movable structure (3), and both sides of the top of the heat preservation device (1) are provided with a card slot (4), and the movable structure (3) comprises a box body (301), and the box body (301) is located on the top of the cover plate (2), and an L-shaped block (302) is provided on the outer side of the inner wall of the box body (301), and the right side of the L-shaped block (302) passes through the outer side of the box body (301), and the back side of the L-shaped block (302) is movably connected to a cross bar (303) through a bearing, and the right side of the front side of the L-shaped block (302) is movably connected to a movable block (304) through a first round block, and the right side of the back side of the movable block (304) is movably connected to a card block (305) through a second round block, and the card block (305) is used in conjunction with the card slot (4).

2. A detachable oilfield wellhead insulation device according to claim 1, characterized in that: A sliding groove (5) is provided on the back of the inner wall of the box body (301), a sliding block (6) is slidably connected inside the sliding groove (5), and the front side of the sliding block (6) is fixedly connected to the back side of the clamping block (305).

3. The detachable oilfield wellhead insulation device according to claim 1 is characterized in that: The inner side of the inner wall of the box body (301) is fixedly connected with a spring sheet (7), and the outer side of the spring sheet (7) is fixedly connected to the inner side of the clamping block (305).

4. The detachable oilfield wellhead insulation device according to claim 1, characterized in that: A movable hole (8) is provided on the top of the left side of the box body (301), and a fixing block (9) is fixedly connected to the inner side of the top of the box body (301).

5. The detachable oilfield wellhead insulation device according to claim 4, characterized in that: The inner side of the fixed block (9) is movably connected to a dust cover (10) via a third round block, a square groove (11) is provided at the bottom of the dust cover (10), and square blocks (12) are fixedly connected to both sides of the top of the cover plate (2).

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