CN218844273U

CN218844273U - Rubber plug for petroleum drilling surface well cementation

Info

Publication number: CN218844273U
Application number: CN202223468258.3U
Authority: CN
Inventors: 孙培全; 吕良升
Original assignee: Qingdao Xinyuansheng Petroleum Technology Co ltd
Current assignee: Qingdao Xinyuansheng Petroleum Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-11
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a rubber plug for oil drilling top layer well cementation, including the plug body, be equipped with top leather cup, a plurality of lateral part leather cups and end head on the plug body, movable mounting has the annular slab on the plug body, the catch plate is installed through the extrusion subassembly to the top side of annular slab, the catch plate is connected through the direction subassembly with the plug body, this rubber plug for oil drilling top layer well cementation, be equipped with the annular slab on the plug body, the gasket is installed to the bottom side of annular slab, can follow the bottom side through the gasket, the grout of separation lower part, but the grout of lower part can use powerful pressure, can promote the gasket rebound, under the effect of extrusion subassembly this moment, it removes to drive the catch plate, and drive and prevent that the clamp plate removes, and with the inner wall contact and the extrusion of well drilling, through the extrusion, can fix the position of plug body, effectively avoid the plug body to take place pivoted problem.

Description

Rubber plug for petroleum drilling surface well cementation

Technical Field

The utility model relates to a well cementation plug technical field especially relates to a rubber plug is used in oil drilling top layer well cementation.

Background

The cementing plug has the functions of isolating cement slurry, cleaning the wall of a casing, preventing cement slurry from being polluted and the like, after the plug is pressed against the floating collar, the cement slurry replacement position and the sealing performance of the casing can be accurately indicated, the upper plug and the lower plug are generally used in a set, the upper plug separates the upper cement slurry and the mud, the cement slurry is prevented from being polluted, and meanwhile, the cement slurry is displaced to an annular space.

The rubber plug for surface cementing of the existing well drilling is used, a leather cup of the side part is in contact with a hole wall, in the contact process, the leather cup of the side part can be tightened, the sealing performance is poor, and meanwhile, the rubber plug is easy to rotate in the use process, so that the sealing performance is influenced, and therefore, the rubber plug for surface cementing of the oil drilling is required to meet the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a rubber stopper for oil drilling top layer well cementation for solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rubber plug for oil drilling top layer well cementation, includes the rubber plug body, be equipped with top leather cup, a plurality of lateral part leather cups and end head on the rubber plug body, movable mounting has the annular plate on the rubber plug body, and the catch plate is installed through extrusion components in the top side of annular plate, and the catch plate is connected through direction subassembly with the rubber plug body, one side fixed mounting of catch plate has prevents changeing the clamp plate, the outside of lateral part leather cup is equipped with seal assembly.

Preferably, the direction subassembly includes the L type frame of fixed mounting in the plug body outside, and one side fixed mounting of L type frame has two slip posts, and the one end of two slip posts all with plug body fixed connection, and the sliding block has been cup jointed in the slip on two slip posts, the bottom side and the slurcam fixed connection of sliding block.

Preferably, the extrusion subassembly is including rotating two stripper bars of installing on the annular plate, the top of two stripper bars is all rotated and is installed on the bottom side of catch bar, two stripper bars on the extrusion subassembly will upwards promote, and drive the catch bar and remove, the catch bar removes will be under the effect of direction subassembly, it is spacing to remove, sliding block and sliding column on the direction subassembly, it is spacing to carry out the horizontal direction to the removal of catch bar, the catch bar will remove towards the one side of keeping away from the plug body this moment, and drive and prevent that the catch bar removes, and contact and the extrusion with the inner wall of well drilling, through the extrusion, can fix the position of plug body, effectively avoid the plug body to take place the pivoted problem.

Preferably, the outer side of the rubber plug body is provided with an annular groove, and the annular plate is slidably mounted in the annular groove.

Preferably, the bottom side fixed mounting of annular plate has the gasket, and the gasket sets up for annular structure, is equipped with the annular plate on the plug body, and the gasket is installed to the bottom side of annular plate, can follow the grout of bottom side, separation lower part through the gasket.

Preferably, seal assembly is including installing the annular rubber in the lateral part leather cup outside, and the outside fixed mounting of annular rubber has a plurality of annular adhesive tapes, and the outside of annular rubber is equipped with annular adhesive tape, through annular rubber and annular adhesive tape, can with the inner wall in close contact with of well drilling to improve the leakproofness of plug body.

Preferably, one side fixed mounting of lateral part leather cup has a plurality of strengthening ribs, and the equal fixed mounting in one end of a plurality of strengthening ribs is on the plug body, and the strengthening rib is hard rubber, and the strengthening rib that sets up can carry out the lateral part to the lateral part leather cup and support, effectively avoids the lateral part leather cup the condition of tightening up to appear, causes sealed not rigorous problem.

Compared with the prior art, the beneficial effects of the utility model are that: the rubber plug for surface well cementation of petroleum drilling is characterized in that an annular plate is arranged on a rubber plug body, a sealing sheet is arranged on the bottom side of the annular plate, lower cement slurry can be separated from the bottom side through the sealing sheet, but the lower cement slurry can use strong pressure to push the sealing sheet to move upwards, at the moment, a pushing plate is driven to move under the action of an extrusion assembly, the pushing plate can move and limit under the action of a guide assembly, and is driven to move and move to drive an anti-rotation pressing plate to move and to contact and extrude with the inner wall of a drilling well, the position of the rubber plug body can be fixed through extrusion, and the problem that the rubber plug body rotates is effectively avoided;

be equipped with annular rubber in the outside of lateral part leather cup, the outside of annular rubber is equipped with annular adhesive tape, through annular rubber and annular adhesive tape, can with the inner wall in close contact with of well drilling to improve the leakproofness of plug body, the strengthening rib of setting can carry out the lateral part to the lateral part leather cup and support, effectively avoids the condition that the lateral part leather cup tightens up to appear, causes sealed not rigorous problem.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic view of a portion A of FIG. 2 according to the present invention;

fig. 4 is a schematic structural diagram of a portion B in fig. 2 according to the present invention.

In the figure: 1. a rubber plug body; 2. a top leather cup; 3. a side leather cup; 4. a bottom end; 5. an annular groove; 6. an annular plate; 7. sealing the sheet; 8. an L-shaped frame; 9. a sliding post; 10. a slider; 11. a push plate; 12. a rotation-proof pressing plate; 13. an extrusion stem; 14. an annular rubber; 15. an annular adhesive tape; 16. and (7) reinforcing ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1-4, a rubber plug for petroleum drilling surface layer well cementation comprises a rubber plug body 1, wherein the rubber plug body 1 is provided with a top leather cup 2, a plurality of side leather cups 3 and a bottom end 4, the rubber plug body 1 is movably provided with an annular plate 6, the top side of the annular plate 6 is provided with a push plate 11 through an extrusion assembly, the push plate 11 is connected with the rubber plug body 1 through a guide assembly, one side of the push plate 11 is fixedly provided with an anti-rotation pressing plate 12, the outer side of the side leather cup 3 is provided with a sealing assembly, the guide assembly comprises an L-shaped frame 8,L frame 8 fixedly arranged on the outer side of the rubber plug body 1, one side of each of the two sliding columns 9 is fixedly provided with two sliding columns 9, one end of each of the two sliding columns 9 is fixedly connected with the rubber plug body 1, the sliding blocks 10 are sleeved on the two sliding columns 9 in a sliding manner, the bottom sides of the sliding blocks 10 are fixedly connected with the push plate 11, the extrusion assembly comprises two extrusion rods 13 rotatably arranged on the annular plate 6, the top ends of the two extrusion rods 13 are rotatably arranged on the bottom side of the pushing plate 11, the two extrusion rods 13 on the extrusion assembly are pushed upwards and drive the pushing plate 11 to move, the pushing plate 11 moves to be limited under the action of the guide assembly, the sliding block 10 and the sliding column 9 on the guide assembly can limit the movement of the pushing plate 11 in the horizontal direction, at the moment, the pushing plate 11 moves towards one side away from the rubber plug body 1 and drives the anti-rotation pressing plate 12 to move and contact and extrude with the inner wall of a well, the position of the rubber plug body 1 can be fixed through extrusion, the problem that the rubber plug body 1 rotates is effectively avoided, the annular groove 5 is arranged on the outer side of the rubber plug body 1, the annular plate 6 is slidably arranged in the annular groove 5, and the sealing sheet 7 is fixedly arranged on the bottom side of the annular plate 6, the gasket 7 sets up for the loop configuration, be equipped with annular plate 6 on plug body 1, gasket 7 is installed to the bottom side of annular plate 6, can follow the bottom side through gasket 7, the grout of separation lower part, seal assembly is including installing the annular rubber 14 in the 3 outsides of lateral part leather cup, annular rubber 14's outside fixed mounting has a plurality of annular adhesive tape 15, annular rubber 14's the outside is equipped with annular adhesive tape 15, through annular rubber 14 and annular adhesive tape 15, can with the inner wall in close contact with of well drilling, thereby improve plug body 1's leakproofness, one side fixed mounting of lateral part leather cup 3 has a plurality of strengthening ribs 16, the equal fixed mounting in one end of a plurality of strengthening ribs 16 is on plug body 1, strengthening rib 16 is the ebonite, the strengthening rib 16 of setting, can carry out the lateral part support to lateral part leather cup 3, effectively avoid the condition that tightens up to appear in lateral part leather cup 3, cause the problem of sealing imprecisely.

When in use: be equipped with annular plate 6 on plug body 1, sealing strip 7 is installed to annular plate 6's bottom side, can follow the bottom side through sealing strip 7, the grout of separation lower part, but the grout of lower part can use powerful pressure, can promote sealing strip 7 rebound, this moment under extrusion subassembly's effect, two stripper bars 13 on the extrusion subassembly will upwards promote, and drive slurcam 11 and remove, slurcam 11 removes will be under guide assembly's effect, it is spacing to remove, sliding block 10 and sliding column 9 on the guide assembly, can carry out the horizontal direction spacing to pushing plate 11's removal, pushing plate 11 will remove towards one side of keeping away from plug body 1 this moment, and drive and prevent changeing the pressure plate 12 and remove, and with the inner wall contact and the extrusion of well drilling, through the extrusion, can fix plug body 1's position, effectively avoid plug body 1 to take place pivoted problem, be equipped with annular rubber 14 in the outside of lateral part leather cup 3, the outside of annular rubber 14 is equipped with annular rubber 15, can cause with the inner wall in close contact with of plug body, thereby improve the leakproofness of plug body 1, 16 to the setting up, can support the effective use condition of lateral part 3, the effective use of tight side portion of taking place, 3, the convenient use of cup, the side of taking place.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rubber plug for oil drilling top layer well cementation, includes plug body (1), its characterized in that, be equipped with top leather cup (2), a plurality of lateral part leather cups (3) and end (4) at the bottom on plug body (1), movable mounting has annular slab (6) on plug body (1), and the top side of annular slab (6) installs slurcam (11) through extrusion subassembly, and slurcam (11) are connected through the direction subassembly with plug body (1), one side fixed mounting of slurcam (11) has and prevents changeing clamp plate (12), the outside of lateral part leather cup (3) is equipped with seal assembly.

2. The rubber plug for surface cementing of petroleum drilling according to claim 1, characterized in that the guiding component comprises an L-shaped frame (8) fixedly mounted on the outer side of the rubber plug body (1), two sliding columns (9) are fixedly mounted on one side of the L-shaped frame (8), one ends of the two sliding columns (9) are fixedly connected with the rubber plug body (1), sliding blocks (10) are slidably sleeved on the two sliding columns (9), and the bottom sides of the sliding blocks (10) are fixedly connected with a pushing plate (11).

3. Rubber plug for surface cementing in oil drilling according to claim 1, characterized in that the said extrusion assembly comprises two extrusion rods (13) rotatably mounted on the annular plate (6), the top ends of both extrusion rods (13) being rotatably mounted on the bottom side of the push plate (11).

4. The rubber plug for surface cementing of petroleum drilling according to claim 1, characterized in that the outer side of the rubber plug body (1) is provided with an annular groove (5), and the annular plate (6) is slidably mounted in the annular groove (5).

5. The rubber plug for surface cementing of petroleum drilling according to claim 1, characterized in that the bottom side of the annular plate (6) is fixedly provided with a sealing sheet (7), and the sealing sheet (7) is arranged in an annular structure.

6. The rubber plug for surface cementing of petroleum drilling according to claim 1, characterized in that the sealing component comprises an annular rubber (14) arranged outside the side cup (3), and a plurality of annular rubber strips (15) are fixedly arranged outside the annular rubber (14).

7. The rubber plug for surface cementing of petroleum drilling according to claim 1, characterized in that one side of the lateral part leather cup (3) is fixedly provided with a plurality of reinforcing ribs (16), one end of each reinforcing rib (16) is fixedly arranged on the rubber plug body (1), and the reinforcing ribs (16) are made of hard rubber.