A prefabricated well wall flange anti-deformation reinforcement structure

Abstract

The utility model relates to the technical field of wellhead device installation, and discloses a prefabricated well wall flange anti-deformation reinforcement structure, comprising a vertical shaft, wherein the upper and lower ends of the vertical shaft are respectively fixedly connected with an upper flange and a lower flange, and the characteristic is that: an upper flange cap mechanism is arranged at the upper end of the upper flange, and a lower flange fixing mechanism is arranged at the lower end of the lower flange, and the lower flange fixing mechanism comprises a gravel layer, a concrete layer, a rail and a steel plate. In the utility model, embedded iron is added through the vertical shaft foundation design to fix the lower flange, and the upper end faces of the rails are located in the same plane, and the maximum height difference is not more than 3mm. In the process of making the well wall, the lower flange is placed on the rail, and the outer edge of the lower flange is fixed on the embedded iron, which can effectively prevent the flange from being deformed, thereby improving the overall anti-deformation effect of the lower flange.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead device installation, in particular to a prefabricated well wall flange anti-deformation reinforcement structure. Background Art

[0002] In drilling engineering, the well flange is a key component connecting the drilling pipe string and the wellhead equipment. It is usually located near the wellhead on the deck of the drilling platform and is used to fix and support the drill pipe, drill collar and other drilling tools.

[0003] Under complex geological conditions, the well flange may be subjected to great force, resulting in deformation or damage. For example, when encountering high-pressure oil and gas layers, geological faults or other abnormal conditions during drilling, the well flange may be subjected to huge pressure and torque, causing it to deform. The gap between the two sections of the well flange can reach more than 10cm, which directly leads to long welding time between the two sections of the well flange, low construction efficiency, increased labor costs, low efficiency of well placement, and long well placement time, which may cause safety accidents in the hole and bring immeasurable consequences to the entire project. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a prefabricated well wall flange anti-deformation reinforcement structure to solve the safety problem.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a prefabricated shaft wall flange anti-deformation reinforcement structure, including a vertical shaft, wherein the upper and lower ends of the vertical shaft are respectively fixedly connected with an upper flange and a lower flange, characterized in that: an upper flange hanging cap mechanism is provided at the upper end of the upper flange, and a lower flange fixing mechanism is provided at the lower end of the lower flange, and the lower flange fixing mechanism includes a crushed stone layer, a concrete layer, a rail and a steel plate, a concrete layer is provided on the upper surface of the crushed stone layer, a steel plate is fixedly connected to the middle of the upper surface of the concrete layer, and a plurality of rails are fixedly connected to the outer side of the upper surface of the concrete layer.

[0006] Preferably, there are 30 rails in total and they are arranged in a circular array.

[0007] Preferably, the gravel layer is paved with a 20 cm thick gravel layer.

[0008] Preferably, the concrete layer is C30 concrete.

[0009] Preferably, the lower end of the shaft is provided with embedded iron and is fixedly connected to the middle part of the upper surface of the lower flange through the embedded iron.

[0010] Preferably, the upper flange cap mechanism includes a cap ring, a support frame and fixing bolts, the inner side of the cap ring is fixedly connected to the support frame, the upper surface of the support frame is threaded with a plurality of fixing bolts, and the support frame is fixedly connected to the upper flange via the fixing bolts.

[0011] Preferably, the support frame is composed of a plurality of I-beams cross-fixedly connected.

[0012] Preferably, the hanging cap ring is a 20 mm thick steel plate.

[0013] Beneficial Effects

[0014] The utility model provides a prefabricated well wall flange anti-deformation reinforcement structure. Compared with the prior art, it has the following beneficial effects:

[0015] 1. In the utility model, embedded iron is added through the vertical shaft foundation design to fix the lower flange, the foundation for the shaft wall is excavated, and then compacted and leveled, a layer of crushed stone with a thickness of 20cm is laid on the bottom, and C30 concrete with a thickness of 300mm is poured thereon; 30 24# rails are buried in the upper concrete along the radial direction of the center of the steel plate; tools such as level rulers, bolts, and levels are fully utilized, the upper end faces of the rails are located in the same plane, and the maximum height difference is not more than 3mm. In the process of making the shaft wall, the lower flange is placed on the rail, and the outer edge of the lower flange is fixed on the embedded iron, which can effectively prevent the flange from deformation, thereby improving the overall anti-deformation effect of the lower flange;

[0016] 2. In the utility model, the upper flange is first fixed to the lower part of the support frame with fixing bolts through the upper flange lifting cap mechanism, and the upper flange is lifted onto the guide frame together with the upper flange as a whole after the inner mold is assembled, and then the upper flange lifting cap mechanism is leveled with a spirit level, and at the same time, two magnetic lines of force are used to align the upper and lower flanges in two directions perpendicular to each other, so that they are consistent from top to bottom, and the horizontality and upper and lower position errors of the upper and lower flanges are not greater than 5mm; the lifting cap can effectively control the deformation of the upper flange, and the deviation is within 5mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of a prefabricated shaft wall flange anti-deformation reinforcement structure proposed by the utility model;

[0018] Figure 2 This is a solid diagram of the flange cap structure on a prefabricated shaft flange anti-deformation reinforcement structure proposed by the utility model;

[0019] Figure 3 This is a partial structural schematic diagram of a prefabricated shaft wall flange anti-deformation reinforcement structure proposed by the utility model;

[0020] Figure 4 This is a structural entity diagram of the flange fixing mechanism under the prefabricated well wall flange anti-deformation reinforcement structure proposed by the utility model.

[0021] Legend:

[0022] 1. Vertical shaft; 2. Upper flange; 3. Lower flange; 4. Upper flange cap mechanism; 401. Cap ring; 402. Support frame; 403. Fixing bolts; 5. Lower flange fixing mechanism; 501. Gravel layer; 502. Concrete layer; 503. Track; 504. Steel plate; 6. Embedded iron. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4 The utility model provides two technical solutions, which specifically include the following embodiments:

[0025] Embodiment 1:

[0026] A prefabricated shaft wall flange anti-deformation reinforcement structure comprises a shaft 1, wherein the upper and lower ends of the shaft 1 are respectively fixedly connected with an upper flange 2 and a lower flange 3, and the characteristic is that an upper flange cap mechanism 4 is arranged at the upper end of the upper flange 2, and a lower flange fixing mechanism 5 is arranged at the lower end of the lower flange 3, and the lower flange fixing mechanism 5 comprises a crushed stone layer 501, a concrete layer 502, a rail 503 and a steel plate 504, a concrete layer 502 is arranged on the upper surface of the crushed stone layer 501, a steel plate 504 is fixedly connected to the middle part of the upper surface of the concrete layer 502, and a plurality of rails 503 are fixedly connected to the outer side of the upper surface of the concrete layer 502, and a total of 30 rails 503 are arranged in a circular array, the crushed stone layer 501 is paved as a 20 cm thick crushed stone layer, and the concrete layer 502 is C30 concrete, and an embedded iron 6 is arranged at the lower end of the shaft 1 and is fixedly connected to the middle part of the upper surface of the lower flange 3 through the embedded iron 6.

[0027] During operation, embedded iron 6 is added through the foundation design of the vertical shaft 1 to fix the lower flange 3. The foundation for the shaft wall is excavated and then compacted and leveled. A layer of 20cm thick crushed stone is laid on the bottom, and 300mm thick C30 concrete is poured thereon. 30 24# rails are buried radially along the center of the steel plate in the upper concrete. Level rulers, bolts, levels and other tools are fully utilized. The upper end faces of the rails are located in the same plane, and the maximum height difference is not more than 3mm. During the shaft wall manufacturing process, the lower flange is placed on the rail, and the outer edge of the lower flange is fixed on the embedded iron, which can effectively prevent the flange from deformation, thereby improving the overall anti-deformation effect of the lower flange 3.

[0028] Embodiment 2:

[0029] On the basis of the first embodiment, the upper flange cap mechanism 4 includes a cap ring 401, a support frame 402 and a fixing bolt 403. The inner side of the cap ring 401 is fixedly connected with the support frame 402. The upper surface of the support frame 402 is threaded with a plurality of fixing bolts 403. The support frame 402 is fixedly connected to the upper flange 2 by the fixing bolts 403. The support frame 402 is composed of a plurality of I-beams cross-fixedly connected. The cap ring 401 is a 20 mm thick steel plate.

[0030] By setting up the upper flange cap mechanism 4, first fix the upper flange 2 to the lower part of the support frame 402 with the fixing bolts 403, and after assembling the inner mold, lift the upper flange cap mechanism 4 together with the upper flange 2 onto the guide frame as a whole, and then use a spirit level to level the upper flange cap mechanism 4, and at the same time use two magnetic lines of force to align the positions of the upper flange 2 and the lower flange 3 in two directions perpendicular to each other, so that they are consistent from top to bottom, and the horizontality and upper and lower position errors of the upper flange 2 and the lower flange 3 are not more than 5mm; the cap can effectively control the deformation of the upper flange 2, and the deviation is within 5mm.

[0031] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A prefabricated shaft flange anti-deformation reinforcement structure, comprising a shaft (1), characterized in that: The upper and lower ends of the vertical shaft (1) are respectively fixedly connected with an upper flange (2) and a lower flange (3), and are characterized in that: an upper flange cap mechanism (4) is provided at the upper end of the upper flange (2), and a lower flange fixing mechanism (5) is provided at the lower end of the lower flange (3), and the lower flange fixing mechanism (5) includes a crushed stone layer (501), a concrete layer (502), a rail (503) and a steel plate (504), a concrete layer (502) is provided on the upper surface of the crushed stone layer (501), a steel plate (504) is fixedly connected to the middle of the upper surface of the concrete layer (502), and a plurality of rails (503) are fixedly connected to the outer side of the upper surface of the concrete layer (502).

2. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 1, characterized in that: There are 30 rails (503) in total and they are arranged in a circular array.

3. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 1, characterized in that: The crushed stone layer (501) is laid to a thickness of 20 cm.

4. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 1, characterized in that: The concrete layer (502) is C30 concrete.

5. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 1, characterized in that: The lower end of the vertical shaft (1) is provided with embedded iron (6) and is fixedly connected to the middle part of the upper surface of the lower flange (3) through the embedded iron (6).

6. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 1, characterized in that: The upper flange cap mechanism (4) comprises a cap ring (401), a support frame (402) and fixing bolts (403); the inner side of the cap ring (401) is fixedly connected to the support frame (402); a plurality of fixing bolts (403) are threadedly connected to the upper surface of the support frame (402); and the support frame (402) is fixedly connected to the upper flange (2) via the fixing bolts (403).

7. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 6, characterized in that: The support frame (402) is composed of a plurality of I-beams that are cross-fixed and connected.

8. The prefabricated shaft flange anti-deformation reinforcement structure according to claim 6, characterized in that: The hanging cap ring (401) is a 20 mm thick steel plate.

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