CN214365981U

CN214365981U - Totally enclosed scalable horn mouth system for offshore drilling

Info

Publication number: CN214365981U
Application number: CN202120457221.7U
Authority: CN
Inventors: 赵国海; 杨福涛; 刘志华; 冯明强; 李锋
Original assignee: Beijing Chengdao West Project Department Of Sinopec
Current assignee: Beijing Chengdao West Project Department Of Sinopec
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-10-08
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses a totally enclosed scalable horn mouth system for marine drilling belongs to drilling equipment technical field, and it is including flexible going up the takeover, flexible going up the takeover joint at antifouling dish middle part, the upper surface of antifouling dish is provided with the carousel, the inner wall joint of antifouling dish has spray assembly, the back of antifouling dish is linked together with mud backflow pipeline's one end, flexible going up the takeover cup joint in flexible lower clutch, the top of flexible lower clutch outer wall and the inner wall fixed connection of backup pad. This totally enclosed scalable horn mouth system for marine drilling through setting up flexible upper hose, mud backflow pipeline, flexible lower hose, horn mouth, annular rubber piece and holder, through adjustable flexible upper hose, applicable in the operation demand of different environment, can promote the essential safety of site operation efficiency, improve equipment by a wide margin, greatly reduced oil spilling risk has avoided the risk of dismantling, hoist and mount, cut and weld the operation in-process of moving a fire simultaneously.

Description

Totally enclosed scalable horn mouth system for offshore drilling

Technical Field

The utility model belongs to the technical field of drilling equipment, specifically be a totally enclosed scalable horn mouth system for ocean drilling.

Background

The bell mouth is installed on blowout preventer BOP, and the position plays the function of retrieving mud under the rolling disc face, forms by the sleeve pipe processing usually, and the side is opened has mud backflow pipeline and grout pipeline connector, can make things convenient for grout and retrieve the drilling floor and leak down and the mud of returning in the well.

The technical problems of the prior art are that firstly, the length of a pipeline is not adjustable, and the pipeline is only suitable for the well and cannot be recycled; secondly, do not seal between bellmouth and the antifouling dish, in case mud performance is not good, the detritus easily piles up in back flow department and causes the back flow jam, therefore causes in the well to return the liquid and spills over from the bellmouth top, causes the environmental pollution incident.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the utility model provides a totally enclosed scalable horn mouth system for ocean drilling, this system have the structure simple and easy, operation simple process, the installation with dismantle conveniently, solved horn mouth and antifouling dish unsealed and environmental pollution's problem simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a totally enclosed scalable horn mouth system for marine drilling, is taken over on flexible, take over the joint in antifouling dish middle part on flexible, the upper surface of antifouling dish is provided with the carousel, the inner wall joint of antifouling dish has spray assembly, the back of antifouling dish is linked together with mud backflow pipeline's one end, it cup joints intraductally under flexible to take over on flexible, the top of the outer wall of pipe and the inner wall fixed connection of backup pad under flexible.

The upper surface of backup pad is provided with six holders, the lower surface of six holders and the upper surface overlap joint of same annular rubber piece, annular rubber piece and lower surface overlap joint mutually with the inner wall of horn mouth, the lower surface of horn mouth and the flexible top fixed connection who takes over down, the inner wall of annular rubber piece and the flexible outer wall overlap joint of taking over of going up.

As a further aspect of the present invention: the spray assembly comprises a connecting pipe, the connecting pipe is connected to the inner wall of the antifouling plate in a clamping mode, a plurality of jet nozzles are arranged on the connecting pipe in an inclined mode, and the antifouling plate is connected with the telescopic upper connecting pipe in a composite mode.

As a further aspect of the present invention: the clamp holder comprises a pressing plate, the lower surface of the pressing plate is in lap joint with the upper surface of the annular rubber block, a threaded rod is sleeved on the upper surface of the pressing plate, a threaded sleeve is in threaded connection with the outer wall of the threaded rod, the lower surface of the threaded sleeve is in lap joint with the upper surface of the pressing plate, the bottom end of the threaded rod is movably connected with the opposite surfaces of the two check blocks through a pin shaft, and the two check blocks are fixedly connected with the upper surface of the supporting plate.

As a further aspect of the present invention: the telescopic lower connecting pipe is internally provided with a reducing short joint pipe, and the reducing short joint pipe is connected with the telescopic lower connecting pipe through a flange.

As a further aspect of the present invention: the middle of the slurry backflow pipeline is provided with a flexible connecting pipe, the left side and the right side of the outer wall of the slurry backflow pipeline, corresponding to the flexible connecting pipe, are provided with spraying pipes in an inclined mode, and the bottom end of the slurry backflow pipeline is provided with an elevated groove.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the totally-sealed telescopic bell mouth system for offshore drilling is characterized in that a telescopic upper connecting pipe, a slurry return pipeline, a telescopic lower connecting pipe, a bell mouth, an annular rubber block and a clamp holder are arranged, when the distance between the telescopic upper connecting pipe and the telescopic lower connecting pipe needs to be adjusted, a plurality of thread sleeves need to be sequentially rotated, the thread sleeves can be turned over after moving for a certain distance, six pressure plates are all separated from the annular rubber block, the distance between the telescopic upper connecting pipe and the telescopic lower connecting pipe is adjusted, the plurality of thread sleeves can be sequentially turned over and rotated, the annular rubber block is downwards extruded by the six pressure plates, the annular rubber block effectively seals a gap between the telescopic upper connecting pipe and the telescopic lower connecting pipe, and through the adjustable telescopic upper connecting pipe, the totally-sealed telescopic bell mouth system is suitable for the operation requirements of different environments, the field operation efficiency can be greatly improved, and the safety essence of equipment is improved, greatly reduces the risk of oil spilling, and simultaneously avoids the risks in the processes of disassembly, hoisting, cutting, welding and firing.

2. This totally enclosed scalable horn mouth system for marine drilling, through setting up flexible upper hose, antifouling dish, fluidic sprinkler and connecting pipe, flexible upper hose direct joint is on antifouling dish, mode through compound connection, make flexible upper hose and antifouling dish between can effectively realize sealed purpose, prevent that the detritus from piling up in mud return line department and causing the jam condition, antifouling dish collection carousel below mud simultaneously, mud return line is in with mud that returns in the preventer well head and the mud water conservancy diversion that antifouling dish was collected to the overhead tank, the volume is great in the antifouling dish, the liquid of mud back-discharge liquid and carousel lower afflux flow can have sufficient buffering space, through being equipped with a plurality of fluidic sprinklers in the antifouling dish, easily to antifouling dish high pressure flushing clearance, replace artifical drilling to go into antifouling dish clearance, be favorable to the personnel to carry out the clearance work.

3. This totally enclosed scalable horn mouth system for offshore drilling, through setting up flexonics pipe, mud return line, spray tube and reducing nipple joint pipe, because of being equipped with the flexonics pipe on the mud return line, the spray tube that sets up through the slope is washed its inside, is convenient for unpack it apart clearance mud return line, because of being equipped with the reducing nipple joint pipe, can select to take over under will stretching out and drawing back or the reducing nipple joint is installed above that as required, satisfies different drilling demands.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a rear view of the anti-fouling disc of the present invention;

FIG. 3 is an enlarged schematic view of the gripper of the present invention;

fig. 4 is a schematic structural view of the support plate of the present invention viewed from above;

in the figure: the device comprises a 1 telescopic upper connecting pipe, a 2 antifouling disc, a 3 rotary disc, a 4 spray assembly, a 41 jet spray head, a 42 connecting pipe, a 5 slurry backflow pipeline, a 6 telescopic lower connecting pipe, a 7 supporting plate, an 8 horn mouth, a 9 annular rubber block, a 10 clamp, a 101 pressing plate, a 102 thread bush, a 103 stop block, a 104 threaded rod, a 11 flexible connecting pipe, a 12 spray pipe, a 13 elevated groove and a 14 reducing short-section pipe.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-4, the utility model provides a technical solution: a totally-sealed telescopic bell mouth system for offshore drilling comprises a telescopic upper connecting pipe 1, wherein the telescopic upper connecting pipe 1 is clamped in the middle of an antifouling disc 2, a rotary disc 3 is arranged on the upper surface of the antifouling disc 2, a spraying assembly 4 is clamped on the inner wall of the antifouling disc 2, the plurality of jet flow nozzles 41 are arranged in the antifouling plate 2, so that the antifouling plate 2 is easy to clean under high pressure, the antifouling plate 2 is replaced by a manual drill to clean, the cleaning work of personnel is facilitated, the telescopic upper connecting pipe 1 is directly clamped on the antifouling plate 2, by means of composite connection, the sealing purpose between the telescopic upper connecting pipe 1 and the antifouling disc 2 can be effectively realized, the blocking condition caused by accumulation of rock debris at the mud backflow pipeline 5 is prevented, the back of the antifouling disc 2 is communicated with one end of a slurry backflow pipeline 5, the telescopic upper connecting pipe 1 is sleeved in the telescopic lower connecting pipe 6, and the upper part of the outer wall of the telescopic lower connecting pipe 6 is fixedly connected with the inner wall of the supporting plate 7.

The upper surface of backup pad 7 is provided with six holders 10, the lower surface of six holders 10 and the upper surface overlap joint of same annular block rubber 9, through the mutually supporting between annular block rubber 9 and horn mouth 8, annular block rubber 9 is effectively to taking over 1 and the flexible gap of taking over between 6 under to flexible, annular block rubber 9 and lower surface and horn mouth 8's inner wall overlap joint mutually, the lower surface of horn mouth 8 and the flexible top fixed connection who takes over 6 down, the inner wall of taking over 1's outer wall overlap joint on annular block rubber 9 and the flexible.

Specifically, as shown in fig. 1-3, the spray assembly 4 includes connecting pipe 42, the inner wall of connecting pipe 42 joint at antifouling dish 2, the slope is provided with a plurality of fluidic sprinkler 41 on connecting pipe 42, and antifouling dish 2 links to each other with flexible upper pipe 1 is compound, holder 10 includes clamp plate 101, the lower surface of clamp plate 101 and the upper surface overlap joint of annular rubber piece 9, the upper surface of clamp plate 101 has cup jointed threaded rod 104, the outer wall threaded connection of threaded rod 104 has thread bush 102, the lower surface of thread bush 102 and the upper surface overlap joint of clamp plate 101, the opposite face swing joint of round pin axle and two dogs 103 is passed through to the bottom of threaded rod 104, two dogs 103 all are connected with the upper surface fixed of backup pad 7, flexible upper pipe 1 and flexible lower pipe 6 between the height-adjusting can reach 5m, can be applicable to different well bodies, the commonality has been strengthened.

Specifically, as shown in fig. 1, be provided with reducing nipple pipe 14 in the flexible takeover 6 down, because of being equipped with reducing nipple pipe 14, can select flexible takeover 6 or reducing nipple to install on it under will stretching out and drawing back as required, satisfy different well drilling demands, the flange sets up to BOP flange, reducing nipple pipe 14 is connected with flexible takeover 6 down through the flange, mud return line 5 middle part is provided with flexible connection pipe 11, because of being equipped with flexible connection pipe 11, spray tube 12 through the slope setting washes its inside, be convenient for unpack its clearance mud return line 5 apart, mud return line 5's the outer wall corresponds the left and right sides of flexible connection pipe 11 and all inclines to be provided with spray tube 12, mud return line 5's bottom is provided with overhead groove 13.

The utility model discloses a theory of operation does: when the distance between the telescopic upper connecting pipe 1 and the telescopic lower connecting pipe 6 needs to be adjusted, the plurality of thread sleeves 102 need to be sequentially rotated, the thread sleeves 102 can be turned over after moving upwards for a certain distance, so that the six pressing plates 101 are all separated from the annular rubber block 9, the distance between the telescopic upper connecting pipe 1 and the telescopic lower connecting pipe 6 is adjusted, then the plurality of thread sleeves 102 can be sequentially turned over and rotated, the six pressing plates 101 downwards extrude the annular rubber block 9, the adjustment of the distance between the telescopic upper connecting pipe 1 and the telescopic lower connecting pipe 6 can be completed, when the device is used, the mud below the rotary table 3 is collected by the anti-fouling disc 2, the mud returning from the wellhead of the blowout preventer and the mud collected by the anti-fouling disc 2 are guided to the elevated tank 13 by the mud return pipeline 5 and then flows to the mud vibrating screen for further treatment.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a totally enclosed scalable horn mouth system for ocean drilling, is taken over (1) including flexible, its characterized in that: the anti-pollution device is characterized in that the telescopic upper connecting pipe (1) is clamped in the middle of the anti-pollution disc (2), the upper surface of the anti-pollution disc (2) is provided with a rotary disc (3), the inner wall of the anti-pollution disc (2) is clamped with a spraying assembly (4), the back surface of the anti-pollution disc (2) is communicated with one end of a slurry backflow pipeline (5), the telescopic upper connecting pipe (1) is sleeved in the telescopic lower connecting pipe (6), and the upper part of the outer wall of the telescopic lower connecting pipe (6) is fixedly connected with the inner wall of the supporting plate (7);

the upper surface of backup pad (7) is provided with six holders (10), the lower surface of six holders (10) and the upper surface overlap joint of same annular rubber piece (9), annular rubber piece (9) and the inner wall looks overlap joint of lower surface and horn mouth (8), the lower surface of horn mouth (8) and the flexible top fixed connection who takes over (6) down, the outer wall overlap joint of taking over (1) on the inner wall of annular rubber piece (9) and the flexibility.

2. The fully sealed retractable bell mouth system for offshore drilling as claimed in claim 1, wherein: spray assembly (4) are including connecting pipe (42), connecting pipe (42) joint is at the inner wall of antifouling dish (2), slope on connecting pipe (42) is provided with a plurality of jet shower nozzle (41), and just antifouling dish (2) with stretch out and draw back and go up takeover (1) complex and link to each other.

3. The fully sealed retractable bell mouth system for offshore drilling as claimed in claim 1, wherein: the clamp holder (10) comprises a pressing plate (101), the lower surface of the pressing plate (101) is in lap joint with the upper surface of the annular rubber block (9), a threaded rod (104) is sleeved on the upper surface of the pressing plate (101), the outer wall of the threaded rod (104) is in threaded connection with a threaded sleeve (102), the lower surface of the threaded sleeve (102) is in lap joint with the upper surface of the pressing plate (101), the bottom end of the threaded rod (104) is movably connected with the opposite surfaces of two check blocks (103) through a pin shaft, and the two check blocks (103) are fixedly connected with the upper surface of the supporting plate (7).

4. The fully sealed retractable bell mouth system for offshore drilling as claimed in claim 1, wherein: the telescopic lower connecting pipe (6) is internally provided with a reducing short-joint pipe (14), and the reducing short-joint pipe (14) is connected with the telescopic lower connecting pipe (6) through a flange.

5. The fully sealed retractable bell mouth system for offshore drilling as claimed in claim 1, wherein: the mud return line (5) middle part is provided with flexible connection pipe (11), the outer wall of mud return line (5) all inclines to be provided with spray tube (12) corresponding to the left and right sides of flexible connection pipe (11), the bottom of mud return line (5) is provided with overhead groove (13).