CN212774210U

CN212774210U - Waterproof device of oil exploitation well head

Info

Publication number: CN212774210U
Application number: CN202021838303.8U
Authority: CN
Inventors: 徐太平; 周京伟; 袁发明
Original assignee: Sichuan Jiebeitong Energy Technology Co ltd
Current assignee: Sichuan Jiebeitong Energy Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-03-23
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a waterproof device of oil development well head, including waterproof section of thick bamboo, buckler, baffle and backup pad, the bottom of waterproof section of thick bamboo is equipped with the opening, the top periphery welding of waterproof section of thick bamboo has the platform that has the entrance to a cave, the buckler includes first frustum and second frustum, first frustum and second frustum are symmetrical and slidable mounting on the platform and lie in the both sides of entrance to a cave, baffle fixed mounting is at the waterproof section of thick bamboo inner wall, set up the through-hole with oil development well head complex on the baffle, the backup pad is installed on the outer wall of waterproof section of thick bamboo and is the same level with the baffle; the inner wall of the waterproof barrel is also provided with a buffer component. This watertight fittings of oil development well head when playing sealed waterproof effect, its buffering subassembly still can avoid the too big pressure in the well to strike first frustum and second frustum and cause the emergence of the phenomenon of buckler damage.

Description

Waterproof device of oil exploitation well head

Technical Field

The utility model relates to a well head technical field, concretely relates to watertight fittings of oil development well head.

Background

Petroleum is one of the main objects of geological exploration, and is a viscous dark brown liquid called "industrial blood", the upper part of the earth crust has petroleum storage, the main component is a mixture of various alkanes, cyclanes and aromatics, and the petroleum is mainly used as fuel oil and gasoline, and is also a raw material of many chemical industry products, such as solution, fertilizer, pesticide, plastics, and the like.

In the field of oil exploitation, fracturing means is generally used to improve the yield of oil, and the use of such means generally seals the environment in a well from the external environment by using a blowout preventer at the wellhead of the well, so as to prevent the oil from accidentally overflowing and causing waste. However, in the wellhead devices in the current market, a wellhead flange is fixed on a wellhead through a bolt in a sealing manner, the petroleum wellhead sealing device has poor stability, and external water easily enters the wellhead and the well to influence the quality of petroleum; in addition, when the pressure of the wellhead is increased, the impact force for forming upward movement is larger, so that the damage of the sealing waterproof device of the oil wellhead is more easily caused; in addition, safety accidents such as blowout and the like can be caused due to factors such as pressure and the like in the process of exploitation, and at the moment, the oil well needs to be quickly plugged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a watertight fittings of oil development well head can play the effect of waterproof sealing and shutoff to solve the technical problem who mentions in the background art.

The purpose of the utility model is realized through the following technical scheme:

a waterproof device of an oil exploitation wellhead comprises a waterproof barrel, a waterproof cover, a baffle and a supporting plate, wherein an opening is formed in the bottom of the waterproof barrel, a platform with a hole is welded on the periphery of the top of the waterproof barrel, the waterproof cover comprises a first frustum and a second frustum, the first frustum and the second frustum are symmetrically and slidably mounted on the platform and located on two sides of the hole, the baffle is fixedly mounted on the inner wall of the waterproof barrel, the distance from the baffle to the bottom of the waterproof barrel is smaller than the distance from the baffle to the top of the waterproof barrel, a through hole matched with an oil exploitation wellhead is formed in the baffle, and the supporting plate is mounted on the outer wall of the waterproof barrel and is flush with the baffle; and the inner wall of the waterproof barrel is also provided with a buffer component.

Further, all be equipped with the slider on the diapire of first frustum and second frustum, be equipped with on the platform with slider complex spout.

Further, the quantity of buffering subassembly is 2 groups, every group the buffering subassembly include first telescopic link, spring, connecting plate and second telescopic link, the one end fixed mounting of first telescopic link is in on the diapire of first frustum or second frustum, the other end of first telescopic link is connected the connecting plate, the first end slidable mounting of second telescopic link in on the inner wall of waterproof section of thick bamboo, the spring is located the second end of second telescopic link with between the connecting plate.

Further, when the first frustum and the second frustum slide relatively and are closed, the second ends of the two second telescopic rods symmetrically installed on the inner wall of the waterproof cylinder are closed to form a piston.

Furthermore, two all install sealed cushion on the end of the second end of second telescopic link.

Further, watertight fittings still includes the shutoff subassembly, the shutoff subassembly includes air compression pump, air duct, a plurality of gasbag and gravity hammer, a plurality of the gasbag through waterproof glue merge the intercommunication in the air duct, the gravity hammer connect in the end of air duct, the diameter after the gasbag is full is greater than the internal diameter of oil development well head.

The utility model has the advantages that:

the utility model discloses a waterproof device of oil exploitation well head, the baffle of its waterproof section of thick bamboo is used for supporting in the well head, and the backup pad is laminated in the well head outer fringe, and the barrel of the waterproof section of thick bamboo below the baffle inserts in the soil body near the well head; the first cone table and the second cone table are installed on the platform in a sliding mode, the first cone table and the second cone table can be relatively close to or away from each other on the platform, so that an opening-closing structure can be formed at the top of the waterproof cylinder, the first cone table and the second cone table can form a waterproof cover of an oil exploitation wellhead when being closed, and the problem that water flows into the wellhead and enters the well to affect the quality of oil exploitation is avoided; can constitute the opening when first frustum and second frustum expand to open, the through-hole on opening and the buckler baffle forms the passageway that supplies other exploitation equipment to pass through, and the effect of the buffering subassembly that is equipped with on the buckler inner wall is: when the waterproof cover is sealed and the pressure of the wellhead is increased, the phenomenon that the waterproof cover is damaged due to the fact that the first frustum and the second frustum are impacted by overlarge pressure is avoided.

Drawings

FIG. 1 is a schematic structural view of the working state of the present invention;

FIG. 2 is a schematic structural view of the non-operating state of the present invention;

FIG. 3 is a schematic view of a sliding installation structure of the waterproof cover and the platform of the present invention;

fig. 4 is a schematic structural view of the plugging assembly of the present invention;

fig. 5 is a schematic structural view of the installation of the plugging assembly and the waterproof barrel of the present invention;

fig. 6 is a schematic structural view of the working state of the plugging assembly of the present invention;

in the figure, 1-a waterproof cylinder, 2-a waterproof cover, 201-a first frustum, 202-a second frustum, 3-a baffle, 4-a supporting plate, 5-a hole, 6-a platform, 7-a through hole, 8-a sliding block, 9-a sliding chute, 10-a first telescopic rod, 11-a spring, 12-a connecting plate, 13-a second telescopic rod, 14-a piston, 15-an air compression pump, 16-an air duct, 17-an air bag and 18-a gravity hammer.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

example 1

Referring to fig. 1-2, a waterproof device of an oil production wellhead comprises a waterproof cylinder 1, a waterproof cover 2, a baffle plate 3 and a support plate 4, wherein an opening is formed in the bottom of the waterproof cylinder 1, a platform 6 with a hole 5 is welded on the periphery of the top of the waterproof cylinder 1, the waterproof cover 2 comprises a first frustum 201 and a second frustum 202, the first frustum 201 and the second frustum 202 are symmetrically and slidably mounted on the platform 6 and located on two sides of the hole 5, the baffle plate 3 is fixedly mounted on the inner wall of the waterproof cylinder 1, the distance from the baffle plate 3 to the bottom of the waterproof cylinder 1 is smaller than the distance from the baffle plate 3 to the top of the waterproof cylinder 1, a through hole 7 matched with the oil production wellhead is formed in the baffle plate 3, and the support plate 4 is mounted on the outer wall of the waterproof cylinder 1 and is flush with the baffle plate 3; and the inner wall of the waterproof barrel 1 is also provided with a buffer component.

The utility model discloses a waterproof device of oil exploitation well head, the baffle 3 of the waterproof cylinder 1 is used for supporting on the well head, the supporting plate 4 is attached to the outer edge of the well head, the cylinder body of the waterproof cylinder 1 below the baffle 3 is inserted into the soil body near the well head; the first frustum 201 and the second frustum 202 are installed on the platform 6 in a sliding mode, the first frustum 201 and the second frustum 202 can be relatively close to or away from each other on the platform 6, therefore, an open-close type structure can be formed at the top of the waterproof barrel 1, the first frustum 201 and the second frustum 202 can form a waterproof cover 2 of an oil exploitation wellhead when closed, and the problem that water flows into the wellhead and enters a well to affect the quality of oil exploitation is avoided; can constitute the opening when first frustum 201 and second frustum 202 expand to open, the opening forms the passageway that supplies other mining equipment to pass through with through-hole 7 on the 2 baffles of buckler 3, and the effect of the buffer unit who is equipped with on the inner wall of waterproof section of thick bamboo 1 is: when the waterproof cover 2 is closed and the pressure of the wellhead is increased, the phenomenon that the waterproof cover 2 is damaged due to the fact that the first frustum 201 and the second frustum 202 are impacted by overlarge pressure is avoided.

The through hole 7 may be slightly larger in diameter than the wellhead.

Referring to fig. 2 to 3, the bottom walls of the first frustum 201 and the second frustum 202 are both provided with a sliding block 8, and the platform 6 is provided with a sliding groove 9 matched with the sliding block 8.

The utility model discloses a slider 8 with the slip of first frustum 201 or second frustum 202 on platform 6 is realized to spout 9 complex structure, and cost low in cost.

Referring to fig. 1-2, the number of the buffer assemblies is 2, each buffer assembly includes a first telescopic rod 10, a spring 11, a connecting plate 12 and a second telescopic rod 13, one end of the first telescopic rod 10 is fixedly mounted on the bottom wall of the first frustum 201 or the second frustum 202, the other end of the first telescopic rod 10 is connected to the connecting plate 12, the first end of the second telescopic rod 13 is slidably mounted on the inner wall of the waterproof cylinder 1, and the spring 11 is disposed between the second end of the second telescopic rod 13 and the connecting plate 12.

Referring to fig. 1, when the first frustum 201 and the second frustum 202 slide and close relatively, the second ends of the two second telescopic rods 13 symmetrically installed on the inner wall of the waterproof cylinder 1 close to form a piston 14.

The utility model discloses a concrete working process of buffering subassembly is: when the waterproof cover 2 is in a working state, the second ends of the two second telescopic rods 13 are in close contact and are closed to form a piston 14, and the whole waterproof cylinder 1 seals a well mouth; when the petroleum gas in the well causes the pressure increase of the well head, the piston 14 can push the inner rod of the first telescopic rod 10 to move upwards along with the elastic movement of the spring 11, when the air pressure in the barrel is reduced, the piston 14 returns downwards to move, the inner rod of the first telescopic rod 10 slides out of the outer rod, two frustum platforms are guaranteed not to be affected by impact force, the waterproof barrel 1 cannot be damaged, and the sealing stability of the waterproof cover 2 is further guaranteed.

Preferably, the ends of the second ends of the two second telescopic rods 13 are both provided with a sealing rubber pad.

The utility model discloses when the sealed cushion on the end of the second end of second telescopic link 13 contacted each other, the gas tightness that two second telescopic links 13 were connected can be strengthened.

Example 2

Referring to fig. 4-6, the waterproof device further includes a plugging assembly, the plugging assembly includes an air compression pump 15, an air duct 16, a plurality of air bags 17 and a gravity hammer 18, the plurality of air bags 17 are bonded and communicated with the air duct 16 by waterproof glue, the gravity hammer 18 is connected to the end of the air duct 16, and the diameter of the inflated air bags 17 is larger than the inner diameter of the oil production wellhead.

Work as first frustum 201 and second frustum 202 constitute the opening when expanding, mining equipment can also enter into the interior exploitation oil of well through the opening, but still can meet the phenomenon because of factors such as pressure cause the blowout at the exploitation in-process, consequently need use the shutoff subassembly, the utility model discloses a gasbag 17 of shutoff subassembly impresses gasbag 17 with gas with the help of air compressor pump 15, and the gasbag 17 diameter is greater than the internal diameter of oil exploitation well head after filling, and gasbag 17 can closely laminate with the wall of a well, carries out the shutoff with the help of the resistance of gasbag 17 with the oil well, and gasbag 17 is the distribution of string formula structure and can disperse pressure again, improves the shutoff effect.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a watertight fittings of oil development well head which characterized in that: comprises a waterproof cylinder (1), a waterproof cover (2), a baffle plate (3) and a supporting plate (4), an opening is arranged at the bottom of the waterproof cylinder (1), a platform (6) with a hole (5) is welded on the periphery of the top of the waterproof cylinder (1), the waterproof cover (2) comprises a first frustum (201) and a second frustum (202), the first frustum (201) and the second frustum (202) are symmetrically and slidably mounted on the platform (6) and are positioned at two sides of the hole (5), the baffle (3) is fixedly arranged on the inner wall of the waterproof cylinder (1), the distance between the baffle (3) and the bottom of the waterproof cylinder (1) is less than the distance between the baffle (3) and the top of the waterproof cylinder (1), the baffle (3) is provided with a through hole (7) matched with an oil exploitation wellhead, the supporting plate (4) is arranged on the outer wall of the waterproof barrel (1) and is flush with the baffle (3); the inner wall of the waterproof barrel (1) is also provided with a buffer component.

2. The apparatus of claim 1, wherein: all be equipped with slider (8) on the diapire of first frustum (201) and second frustum (202), be equipped with on platform (6) with slider (8) complex spout (9).

3. The apparatus of claim 1, wherein: the quantity of buffering subassembly is 2 groups, every group the buffering subassembly include first telescopic link (10), spring (11), connecting plate (12) and second telescopic link (13), the one end fixed mounting of first telescopic link (10) be in on the diapire of first frustum (201) or second frustum (202), the other end of first telescopic link (10) is connected connecting plate (12), the first end slidable mounting of second telescopic link (13) be in on the inner wall of waterproof section of thick bamboo (1), spring (11) are located the second end of second telescopic link (13) with between connecting plate (12).

4. The apparatus of claim 3, wherein: when the first frustum (201) and the second frustum (202) slide relatively and are closed, the second ends of the two second telescopic rods (13) symmetrically arranged on the inner wall of the waterproof cylinder (1) are closed to form a piston (14).

5. The apparatus of claim 4, wherein: and sealing rubber pads are arranged at the tail ends of the second ends of the two second telescopic rods (13).

6. The apparatus of claim 1, wherein: still include the shutoff subassembly, the shutoff subassembly includes air compression pump (15), air duct (16), a plurality of gasbag (17) and gravity hammer (18), a plurality of gasbag (17) through waterproof glue merge communicate in air duct (16), gravity hammer (18) connect in the end of air duct (16), the diameter after gasbag (17) are sufficient is greater than the internal diameter of oil development well head.