Anti-splashing safety protection device for oil well

Abstract

The utility model discloses an oil well anti-splashing safety protection device which comprises a protection pipe, a containing groove is formed in an inner cavity of the protection pipe, a rubber ring is arranged in an inner cavity of the containing groove, and a compression assembly for compressing the rubber ring so as to improve the sealing effect is arranged on the opening portion of the protection pipe. The sealing effect can be effectively improved, leakage of media such as liquid and gas can be prevented, meanwhile, the rubber ring is formed by splicing the two sets of rubber semi-rings, the two sets of rubber semi-rings can be sequentially placed in the containing groove of the protection pipe firstly and then spliced in the installation process, compared with an integral rubber ring, the installation and taking-out process is more convenient, the needed time is short, and the installation efficiency is improved. Compared with the prior art, the maintenance time can be greatly shortened, meanwhile, the damaged part can be independently replaced, the whole part does not need to be replaced, and the maintenance material cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil well blowout and splash safety protection device technical field, concretely is a kind of oil well blowout and splash safety protection device. BACKGROUND

[0002] Once the gap between the oil well casing and the oil well occurs spatter or leakage phenomenon, due to the high pressure in the well, its jetting force is strong, which can cause the oil pumping unit and the wellhead around large area pollution, even cause personal injury, so that the operator cannot operate the wellhead at close range.

[0003] At present, the Chinese patent with announcement number CN212359702U discloses a kind of anti-splashing device for oil well bottom, the anti-splashing device is composed of two major parts of sealing locking clamp and anti-splashing cover, when using, anti-splashing device is fitted on the casing at the bottom of oil well mouth, wherein, sealing locking clamp just wraps the thread connection of casing at the bottom of oil well mouth inside, then the sealing locking clamp is locked in position with the upper and lower casing at the bottom of oil well mouth by first locking screw and second locking screw, then glue is injected into glue injection groove by glue injection valve, to increase the strength of thread connection of upper and lower casing, avoid the occurrence of leakage phenomenon, at the same time, through the setting of anti-splashing cover, even if the phenomenon of spatter occurs on the ground, under the block of anti-splashing cover, spatter can be limited within a certain range, reduce spattering force, can reduce spattering range, improve safety factor;The anti-splashing device has the advantages of simple structure, reasonable design, convenient use, good anti-splashing effect and the like.

[0004] The anti-splashing device for oil well bottom has some problems in use, although it can limit spatter within a certain range, reduce spattering force, reduce spattering range and improve safety factor, but once the glue in glue injection groove is found to be aged and invalid, it needs to be re-glued, and when re-gluing, the aged glue and impurities need to be removed, which inevitably consumes a lot of manpower and time. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an oil well blowout and splash safety protection device to solve the problem that the glue in glue injection groove is found to be aged and invalid, and needs to be re-glued, and when re-gluing, the aged glue and impurities need to be removed, which inevitably consumes a lot of manpower and time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An oil well blowout prevention safety protection device, including a protection pipe, the inner cavity of the protection pipe is provided with a containing groove, the inner cavity of the containing groove is provided with a rubber ring, the mouth of the protection pipe is provided with a compression assembly for improving the sealing effect, the lower mouth of the protection pipe is connected with a blowout prevention assembly through a detachable connecting piece, and the lower mouth of the protection pipe is provided with a fixing assembly for fixing the protection pipe.

[0008] As a preferred technical scheme, the compression assembly comprises external threads arranged on the upper surface of the protection pipe, a threaded cap is threadedly connected to the upper mouth of the protection pipe through the external threads, a through hole corresponding to the inner diameter of the rubber ring is formed in the middle portion of the threaded cap, and an abutting ring is fixedly connected to the inner wall of the top portion of the threaded cap and located on the outer circular surface of the through hole.

[0009] As a preferred technical scheme, the detachable connecting assembly comprises an annular clamping groove formed in the lower surface of the protection pipe, connecting half-rings are clamped in the inner cavities of the two sides of the annular clamping groove, fixed half-rings are fixedly connected to the opposite side surfaces of the two connecting half-rings, and the two fixed half-rings are folded together and mounted on the outer circular surface of the protection pipe through a fixing piece.

[0010] As a preferred technical scheme, the fixing piece comprises fixing bolts threadedly connected to the top portions of the opposite sides of the two fixed half-rings, respectively, and the fixing bolts are threadedly penetrated through the fixed half-rings, the corresponding connecting half-rings and the inner cavities of the annular clamping groove.

[0011] As a preferred technical scheme, the blowout prevention assembly comprises half-circular covers fixedly connected to the bottom portions of the two fixed half-rings, respectively, and the end portions of the two half-circular covers are aligned and folded together.

[0012] As a preferred technical scheme, the fixing assembly comprises strip-shaped grooves formed in the inner walls on the two bottom portions of the protection pipe, respectively, the inner cavities of the two strip-shaped grooves are provided with abutting strips, the surfaces of the two sides of the protection pipe are threadedly connected with counterbores, the end portions of the two counterbores are fixedly connected with connecting columns, respectively, and the connecting columns are rotatably inserted into the surfaces of the corresponding abutting strips.

[0013] As a preferred technical scheme, the rubber ring is composed of two rubber half-rings.

[0014] Compared with the prior art, the oil well blowout prevention safety protection device has the advantages that:

[0015] 1. The utility model discloses a rubber ring is set up, and is compressed to it through compression component, can effectively improve the sealing effect, is applicable to the occasion of higher sealing requirement, and the rubber ring is by two groups of rubber half ring splicing composition, when installing, can first two groups of rubber half ring are put into the containing groove of protection tube in proper order, then carry out splicing, compared with integral type rubber ring, the process of installation and taking out is more convenient, required time is less, can greatly shorten the maintenance time, simultaneously, can replace the damaged part alone, need not to replace the whole, reduced the material cost of maintenance.

[0016] 2. The utility model discloses the setting of compression component, rotates screw cap, can realize the compression of rubber ring, simple and convenient operation, need not complicated tool and process, reduced the use difficulty and cost, and when replacing rubber ring, dismounts very conveniently, greatly shortens the time needed for maintenance, simultaneously, can control the compression degree of abutment ring to rubber ring through rotating screw cap according to actual need, to adjust the sealing effect flexibly. DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of oil well blowout preventer safety protection device of the utility model;

[0018] Figure 2 It is the structure schematic drawing of containing groove of the utility model;

[0019] Figure 3 It is the sectional structure schematic drawing of protection tube of the utility model;

[0020] Figure 4 It is the structure schematic drawing of fixed half ring of the utility model.

[0021] In the drawing:

[0022] 100, protection tube; 101, outer thread; 102, annular clamping groove; 103, containing groove; 104, rubber ring; 105, strip groove; 106, rubber half ring;

[0023] 200, screw cap; 203, abutment ring; 204, through -hole;

[0024] 300, fixed half ring; 301, semicircular cover; 302, fixed bolt; 303, connecting half ring;

[0025] 400, countersunk bolt; 401, abutment strip; 402, connecting column. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Please refer to Figures 1-4 The present embodiment provides an oil well blowout splash safety protection device, which comprises a protection pipe 100, the inner cavity of the protection pipe 100 is provided with a containing groove 103, the inner cavity of the containing groove 103 is provided with a rubber ring 104, the mouth of the protection pipe 100 is provided with a compression assembly for compressing the rubber ring 104 to improve the sealing effect, the lower mouth of the protection pipe 100 is connected with a blowout splash assembly through a detachable connecting piece, and the lower mouth of the protection pipe 100 is provided with a fixing assembly for fixing the protection pipe 100; the rubber ring 104 is composed of two groups of rubber half rings 106, the sealing effect can be effectively improved by the setting of the rubber ring 104 and the compression of the rubber ring 104 by the compression assembly, and the rubber ring 104 is suitable for occasions with high sealing requirements, and the two groups of rubber half rings 106 can be sequentially placed in the containing groove 103 of the protection pipe 100 and then spliced during installation, compared with the integral rubber ring 104, the installation and removal process is more convenient, the required time is less, the maintenance time can be greatly shortened, damaged parts can be replaced separately, the entire device does not need to be replaced, and the material cost of maintenance is reduced.

[0028] The compression assembly comprises an outer thread 101 arranged on the upper surface of the protection pipe 100, the upper mouth of the protection pipe 100 is threadedly connected with a threaded cap 200 through the outer thread 101, the middle part of the threaded cap 200 is provided with a through hole 204 corresponding to the inner diameter of the rubber ring 104, the inner wall of the top of the threaded cap 200 and the outer circular surface of the through hole 204 are fixedly connected with an abutting ring 203, the bottom of the abutting ring 203 contacts the top surface of the rubber ring 104, the rubber ring 104 can be compressed by rotating the threaded cap 200, the operation is simple and convenient, complex tools and processes are not needed, the use difficulty and cost are reduced, the rubber ring 104 can be easily disassembled when being replaced, the maintenance time is greatly shortened, and the compression degree of the rubber ring 104 by the abutting ring 203 can be controlled by rotating the threaded cap 200 according to actual needs, so that the sealing effect can be flexibly adjusted.

[0029] The detachable connecting assembly comprises an annular clamping groove 102 formed on the lower surface of the protection pipe 100, the two side cavities of the annular clamping groove 102 are clamped with connecting half-rings 303, the opposite side surfaces of the two groups of connecting half-rings 303 are fixedly connected with fixed half-rings 300, and the two groups of fixed half-rings 300 are folded together and are mounted on the outer circular surface of the protection pipe 100 through fixing members. Through the arrangement of the detachable connecting assembly, the clamping mode of the annular clamping groove 102 and the connecting half-ring 303, and the mounting of the fixed half-ring 300 on the outer circular surface of the protection pipe 100 through the fixing member, the anti-splashing assembly can be quickly and conveniently detached when the device needs to be maintained, overhauled or replaced, thereby improving the work efficiency.

[0030] The fixing member comprises fixed bolts 302 which are respectively screwed on the top of the opposite side of the two groups of fixed half-rings 300, the two groups of fixed bolts 302 are respectively screwed through the fixed half-rings 300 and the corresponding side connecting half-rings 303 and are screwed in the cavities of the annular clamping grooves 102, and through the arrangement of the fixing member, a strong fastening force can be provided to ensure that the connection between the anti-splashing assembly and the protection pipe 100 is firm and reliable.

[0031] The anti-splashing assembly comprises half-circular covers 301 which are respectively fixedly connected on the bottom of the two groups of fixed half-rings 300, and the end portions of the two groups of half-circular covers 301 are aligned and folded together, through the arrangement of the anti-splashing assembly, the end portions of the two groups of half-circular covers 301 are aligned and folded together to form a complete anti-splashing cover, which can effectively block the splashing objects and limit the splashing range within the anti-splashing cover, thereby reducing the harm of the splashing objects to the surrounding environment and personnel. Meanwhile, the half-circular covers 301 are respectively fixed on the bottom of the two groups of fixed half-rings 300, so that the half-circular covers 301 can naturally form an anti-splashing structure after the fixed half-rings 300 are installed, the installation process is simple and fast, the work efficiency is improved, and if the half-circular covers 301 are damaged or need to be replaced, since the half-circular covers 301 are fixedly connected with the fixed half-rings 300, the damaged half-circular covers 301 can be conveniently detached together with the fixed half-rings 300 for replacement, thereby reducing the maintenance cost and difficulty.

[0032] The fixing assembly comprises strip-shaped grooves 105 respectively formed in the inner walls of the bottom of the protection pipe 100, and the inner cavities of the two groups of strip-shaped grooves 105 are provided with abutting strips 401, the two side surfaces of the protection pipe 100 are threadedly connected with counterbores 400, the ends of the two groups of counterbores 400 are fixedly connected with connecting columns 402, and the two groups of connecting columns 402 are rotatably inserted into the surfaces of the corresponding side abutting strips 401. Through the arrangement of the fixing assembly, the counterbores 400 are rotated to drive the connecting columns 402 and the abutting strips 401 to move in the strip-shaped grooves 105, so that the abutting strips 401 are in close contact with the surface of the object to be fixed and generate pressure, the protection pipe 100 can be firmly fixed at the required position, the device will not be displaced or shaken during the working process, the stability and reliability of the device are improved, and the design of the counterbores 400 enables the heads to be sunk into the surface of the protection pipe 100 and not to protrude outward, so that the damage of the counterbores caused by collision or other reasons is avoided.

[0033] The cross section of the connecting column 402 is T-shaped.

[0034] Working principle

[0035] Firstly, the protection pipe 100 is sleeved on the outer surface of the oil well casing head, and the protection pipe 100 is moved to the position to be fixed, then the counterbores 400 on the two side surfaces of the protection pipe 100 are rotated, so that the two groups of counterbores 400 are continuously screwed into the protection pipe 100, and the abutting strips 401 are pushed by the connecting columns 402 to move in the strip-shaped grooves 105 until the abutting strips 401 are in close contact with the surface of the oil well casing, and the counterbores 400 are continuously screwed to make the abutting strips 401 generate sufficient pressure on the surface of the object, so that the fixing of the protection pipe 100 is completed.

[0036] At this time, the anti-splashing assembly is installed, the two groups of connecting half-rings 303 are clamped into the two sides of the annular clamping groove 102 on the lower surface of the protection pipe 100, and the two groups of fixed half-rings 300 are ensured to be folded so that they are attached to the outer surface of the protection pipe 100, then the fixed bolts 302 are screwed from the top of the opposite side of the two groups of fixed half-rings 300, and the fixed bolts 302 are sequentially inserted into the fixed half-rings 300 and the corresponding connecting half-rings 303, and are screwed into the inner cavities of the annular clamping grooves 102, so as to ensure firm connection.

[0037] Then, the two groups of rubber half-rings 106 are taken out and sleeved on the surface of the oil well casing and completely sunk into the accommodating grooves 103 formed in the inner wall of the protection pipe 100, at this time, the threaded cap 200 is taken out and screwed to the upper port of the protection pipe 100 through the external thread 101, so as to ensure that the abutting ring 203 is aligned with the top of the two groups of rubber half-rings 106, and the threaded cap 200 is tightened to compress the rubber half-rings 106 and fill the gap between the protection pipe 100 and the oil well casing, so as to improve the airtightness of the protection pipe 100 and effectively prevent liquid or gas leakage.

[0038] When the rubber half ring 106 is aged after long time use, unscrew the threaded cap 200, take out the old rubber half ring 106, splice the new rubber half ring 106 into the accommodating groove 103, then reinstall the threaded cap 200 and adjust the seal.

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

Claims

1. An oil well blowout preventer safety protection device, characterized in that, The utility model provides a protection tube (100), the inner chamber of protection tube (100) is provided with containing groove (103), the inner chamber of containing groove (103) is provided with rubber ring (104), the mouth of protection tube (100) is provided with compression rubber ring (104) so that the compression assembly of improving sealing effect, the lower mouth of protection tube (100) is connected with the anti -splash assembly through detachable connecting piece, and the lower mouth of protection tube (100) is provided with the fixed assembly of protection tube (100) is fixed.

2. An oil well blowout preventer safety protection device according to claim 1, characterized in that: The compression assembly includes an external thread (101) provided on the upper surface of the protection tube (100), the upper mouth of the protection tube (100) is threadedly connected with a threaded cap (200) through the external thread (101), the middle part of the threaded cap (200) is provided with a through hole (204) corresponding to the inner diameter of the rubber ring (104), the top inner wall of the threaded cap (200) and located at the outer circular surface of the through hole (204) is fixedly connected with an abutting ring (203), and the bottom of the abutting ring (203) contacts the top surface of the rubber ring (104).

3. An oil well blowout preventer safety protection device according to claim 1, characterized in that: The detachable connecting assembly includes an annular clamping groove (102) provided on the lower surface of the protection tube (100), the inner cavities of the two sides of the annular clamping groove (102) are clamped with connecting half-rings (303), the opposite side surfaces of the two connecting half-rings (303) are fixedly connected with fixed half-rings (300), and the two fixed half-rings (300) are folded together and installed on the outer circular surface of the protection tube (100) through a fixing member.

4. An oil well blowout preventer safety protection device according to claim 3, characterized in that: The fixing member includes fixing bolts (302) threadedly connected with the top of the opposite side of the two fixed half-rings (300) respectively, the fixing bolts (302) are threadedly penetrated through the fixed half-rings (300) and the corresponding connecting half-rings (303) and threadedly connected with the inner cavities of the annular clamping grooves (102) respectively.

5. An oil well blowout preventer safety protection device according to claim 4, characterized in that: The anti-splash assembly includes half-circular covers (301) fixedly connected with the bottoms of the two fixed half-rings (300) respectively, and the ends of the two half-circular covers (301) are aligned and folded together.

6. An oil well blowout preventer safety protection device according to claim 1, characterized in that: The fixing assembly includes strip-shaped grooves (105) provided on the inner walls of the bottoms of the two sides of the protection tube (100) respectively, the inner cavities of the two strip-shaped grooves (105) are provided with abutting strips (401), the surfaces of the two sides of the protection tube (100) are threadedly connected with countersunk bolts (400), the ends of the two countersunk bolts (400) are fixedly connected with connecting columns (402) respectively, and the surfaces of the two connecting columns (402) are rotatably inserted into the corresponding abutting strips (401) respectively.

7. An oil well blowout preventer safety protection device according to claims 1-6, characterized in that: The rubber ring (104) is composed of two rubber half-rings (106).

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