CN114809975B

CN114809975B - Packer

Info

Publication number: CN114809975B
Application number: CN202210353117.2A
Authority: CN
Inventors: 邵正祥; 徐成林; 曹兆国
Original assignee: FUNING COUNTY HONGDA PETROCHEMICAL MACHINERY CO LTD
Current assignee: FUNING COUNTY HONGDA PETROCHEMICAL MACHINERY CO LTD
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2023-11-17
Anticipated expiration: 2042-04-01
Also published as: CN114809975A

Abstract

The application discloses a packer, which relates to the technical field of packers and comprises a packer main body, wherein a mounting end head is arranged at the bottom end of the packer main body, a mounting sealing cover is arranged on the upper surface of the packer main body, a positioning hole is formed in the upper surface of the mounting sealing cover, a conveying mounting pipe is arranged on the inner wall of the positioning hole, a thread fixing groove is formed in the surface of the packer main body, a first sealing ring and a second sealing ring are respectively arranged on the surface of the packer main body, and a threaded hole is formed in the upper surface of the packer main body. Through setting up the sealed lid of installation, seal, be convenient for fix through setting up the screw thread fixed slot, through setting up first sealing washer, second sealing washer, seal the operation, through setting up mechanical pressurization sealing mechanism, be convenient for the manual work carries out mechanical pressurization to it for first sealing washer, second sealing washer are sealed more firm, borrow by above-mentioned structure, and the manual physical carries out mechanical pressurization, make sealed effect better.

Description

Packer

Technical Field

The application relates to the technical field of packers, in particular to a packer.

Background

The packer refers to a downhole tool connected to a downhole tubular column and used for sealing the annular space between the oil and gas well casing or the open hole wall, when the packer is used, the packer is connected to the downhole tubular column and is driven to the designed depth by hydraulic pressure when the annular space between the oil and gas well casing or the open hole wall is required to be sealed, so that the sealing piece on the packer expands to seal the annular space of the oil and gas well casing.

When the existing packer is used, mechanical pressing operation is usually needed through external pressurizing equipment, the pressure difference in some scene pipes is small, the mechanical pressure can be manually applied, but the conditions of incomplete pressurization and poor sealing effect exist, and therefore, the packer is provided.

Disclosure of Invention

The application aims to provide a packer, which solves the problems that when the existing packer is used, mechanical pressing operation is usually needed through external pressing equipment, the pressure difference in some scene pipes is small, the mechanical pressure can be manually applied, but the pressurization is not thorough, and the sealing effect is poor.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a packer, includes the packer main part, the bottom of packer main part is provided with the installation end, the upper surface of packer main part is provided with the installation sealed lid, the locating hole has been seted up to the upper surface of installation sealed lid, the inner wall of locating hole is provided with carries the installation tube, the screw thread fixed slot has been seted up on the surface of packer main part, the surface of packer main part is provided with first sealing washer, second sealing washer respectively, the screw hole has been seted up to the upper surface of packer main part, the inner wall threaded connection of screw hole has mechanical pressurization sealing mechanism.

By means of the structure, the sealing cover is installed through the arrangement, the sealing is performed, the fixing is facilitated through the threaded fixing groove, the sealing operation is performed through the arrangement of the first sealing ring and the second sealing ring, the mechanical pressurizing sealing mechanism is arranged, the mechanical pressurizing is performed on the sealing cover manually, and the sealing of the first sealing ring and the second sealing ring is firmer.

Preferably, the mechanical pressurizing sealing mechanism comprises a rotating screw rod which is connected with the inner wall of the threaded hole in a threaded mode, a rotating turntable is arranged at the top end of the rotating screw rod, and a linkage fixing plate is connected with the bottom end of the rotating screw rod in a rotating mode.

Further, through setting up rotatory carousel, the operator rotates rotatory carousel and drives the rotation lead screw and rotate, rotates the lead screw and rotates and drive the motion of linkage fixed plate.

Preferably, the surface of the rotating screw rod is provided with a moving pressing disc, the lower surface of the moving pressing disc is provided with an inclined surface, the inner wall of the packer main body is provided with a plurality of installation extrusion holes, and the inner walls of the installation extrusion holes are all in sliding connection with a connecting moving block.

Further, through setting up the motion press disc, with linking the motion piece contact drive linking the motion piece and take place the motion, dodge the motion of linking the motion piece through setting up the installation extrusion hole.

Preferably, the lower surface that links up the kinematic block is provided with the connection mounting panel, the inner wall of packer main part is provided with first back and forth telescopic link, one side fixed connection that the rotation lead screw was kept away from with the connection mounting panel to the one end of first back and forth telescopic link, the surface cover of first back and forth telescopic link is equipped with second reset spring, the one end and the inner wall fixed connection of packer main part of second reset spring, one side fixed connection that the rotation lead screw was kept away from with the connection mounting panel to the other end of second reset spring.

Further, through setting up the connection mounting panel, link up the motion piece through the second reset spring is assisted and reset, through setting up first round trip telescopic link, prevent that second reset spring from taking place serious deformation.

Preferably, the surface of linkage fixed plate is provided with a plurality of pressing boards, links up the kinematic plate respectively, the inner wall of packer main part is provided with a plurality of connection guide slots, the lateral wall of linking the kinematic plate and the inner wall sliding connection who connects the guide slot.

Further, through setting up the connection guide way, the motion to linking the kinematic plate is led spacingly, and then makes the linkage fixed plate can not take place to rotate, presses the board through setting up and presses, presses the elastic expansion gasbag and accomplishes the pressurization operation.

Preferably, the inner wall of the packer main body is provided with a plurality of installation placing boxes, the inner wall of the packer main body is provided with a plurality of air inlets, the surface of each air inlet is provided with an elastic expansion air bag, and the elastic expansion air bags are arranged in the installation placing boxes.

Further, through setting up the inlet port, dodge, be convenient for with the air pressure of elastic expansion gasbag in impressing the second sealing washer make its inflation deformation, place the case through setting up the installation, guarantee the stability after the elastic expansion gasbag atress.

Preferably, a plurality of installation placing boxes are arranged on one side close to the rotating screw rod, an installation avoiding groove is formed in the installation placing boxes, movable through holes are formed in the upper surfaces of the installation placing boxes, and the movable through holes correspond to the pressing plate in position.

Further, through setting up installation dodge groove, activity through-hole, realize dodging the pressing plate motion of exerting pressure.

Preferably, the surface of the packer body is provided with a mounting deflector.

Further, the installation guide plate is arranged to guide and limit the movement of the positioning friction plate.

Preferably, the opposite surfaces of the upper and lower installation guide plates are connected with the same positioning friction plate in a sliding manner.

Further, positioning is assisted by providing a positioning friction plate.

Preferably, the inner wall of the positioning friction plate is provided with a second back-and-forth telescopic rod, the other end of the second back-and-forth telescopic rod is fixedly connected with the surface of the packer main body, a first reset spring is sleeved on the surface of the second back-and-forth telescopic rod, one end of the first reset spring is fixedly connected with the surface of the packer main body, and the other end of the first reset spring is fixedly connected with the inner wall of the positioning friction plate.

Further, through setting up first reset spring, drive the location friction plate and reset, through setting up the second and make a round trip the telescopic link, keep first reset spring motion's stability.

In summary, the application has the technical effects and advantages that:

according to the application, through the arrangement of the rotary turntable, an operator rotates the rotary turntable to drive the rotary screw rod to rotate, the rotary screw rod rotates to drive the linkage fixed plate to move, the linkage fixed plate is contacted with the linkage moving block to drive the linkage moving block to move through the arrangement of the movement pressing plate, the movement of the linkage moving block is avoided through the arrangement of the installation extrusion hole, the linkage moving block is reset through the arrangement of the connection installation plate, and the second reset spring is prevented from being seriously deformed through the arrangement of the first back and forth telescopic rod.

According to the application, the connecting guide groove is arranged to guide and limit the movement of the connecting moving plate, so that the linkage fixed plate cannot rotate, the pressing plate is arranged to press the elastic expansion air bag to complete the pressing operation, the air inlet is arranged to avoid, the air pressure of the elastic expansion air bag is conveniently pressed into the second sealing ring to expand and deform, and the mounting and placing box is arranged to ensure the stability of the elastic expansion air bag after being stressed.

According to the application, the avoidance of the movement of the pressing plate is realized by arranging the mounting avoidance groove and the movable through hole, the guide limiting is carried out on the movement of the positioning friction plate by arranging the mounting guide plate, the positioning is assisted by arranging the positioning friction plate, the positioning friction plate is driven to reset by arranging the first reset spring, the stability of the movement of the first reset spring is kept by arranging the second back and forth telescopic rod, and the sealing effect is better by means of the structure that the mechanical pressurization is carried out manually and physically.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic perspective view of a mechanical compression seal mechanism according to an embodiment of the present application;

FIG. 3 is a schematic perspective view of a positioning friction plate according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a packer body in an embodiment of the application;

FIG. 5 is an enlarged schematic view of the structure A in FIG. 4 according to the embodiment of the present application;

fig. 6 is an enlarged schematic view of the structure at B in fig. 4 according to an embodiment of the present application.

In the figure: 1. a packer body; 2. installing an end head; 3. installing a sealing cover; 4. conveying the installation pipe; 5. a thread fixing groove; 6. a first seal ring; 7. a second seal ring; 8. a mechanical pressurizing sealing mechanism; 801. rotating the turntable; 802. rotating the screw rod; 803. moving the pressing plate; 804. a linkage fixing plate; 805. installing a guide plate; 806. a second back and forth telescopic rod; 807. positioning a friction plate; 808. a first return spring; 809. connecting the motion blocks; 810. a pressing plate is pressed; 811. installing a placement box; 812. an elastically inflatable balloon; 813. installing an avoidance groove; 814. a connecting guide groove; 815. connecting a mounting plate; 816. a first back and forth telescopic rod; 817. a second return spring; 818. connecting a motion plate; 819. a movable through hole; 820. and installing the extrusion hole.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Examples: referring to a packer shown in fig. 1 to 6, the packer comprises a packer main body 1, the packer main body 1 can be any one of the prior art, a mounting end head 2 is arranged at the bottom end of the packer main body 1, the mounting end head 2 can be any one of the prior art, a mounting sealing cover 3 is arranged on the upper surface of the packer main body 1, the mounting sealing cover 3 can be any one of the prior art, a positioning hole is formed in the upper surface of the mounting sealing cover 3, a conveying mounting pipe 4 is arranged on the inner wall of the positioning hole and can be any one of the prior art, a threaded fixing groove 5 is formed in the surface of the packer main body 1, a first sealing ring 6 and a second sealing ring 7 are respectively arranged on the surface of the packer main body 1, a threaded hole is formed in the upper surface of the packer main body 1, a mechanical pressurizing sealing mechanism 8 is connected with the inner wall of the threaded hole in a threaded manner, and the mechanical pressurizing sealing mechanism 8 can be any one of the prior art.

By means of the structure, the sealing cover 3 is installed to seal, the thread fixing groove 5 is arranged to facilitate fixing, the first sealing ring 6 and the second sealing ring 7 are arranged to seal, the mechanical pressurizing sealing mechanism 8 is arranged to facilitate manual mechanical pressurizing, and the first sealing ring 6 and the second sealing ring 7 are sealed more firmly.

As a preferred implementation manner in this embodiment, the mechanical pressurizing sealing mechanism 8 includes a rotating screw rod 802 screwed to an inner wall of the threaded hole, the rotating screw rod 802 may be any one of the prior art, a rotating turntable 801 is disposed at a top end of the rotating screw rod 802, the rotating turntable 801 may be any one of the prior art, a linkage fixing plate 804 is rotatably connected to a bottom end of the rotating screw rod 802, and the linkage fixing plate 804 may be any one of the prior art.

Through setting up rotary turntable 801, the operator rotates rotary turntable 801 and drives rotation lead screw 802 rotation, and rotation lead screw 802 rotates and drives linkage fixed plate 804 motion.

In this embodiment, the surface of the rotary screw rod 802 is provided with a moving pressing plate 803, the moving pressing plate 803 may be any one of the prior arts, the lower surface of the moving pressing plate 803 is provided with an inclined surface, the inner wall of the packer body 1 is provided with a plurality of installation extrusion holes 820, the inner walls of the plurality of installation extrusion holes 820 are all slidably connected with a linking moving block 809, and the linking moving block 809 may be any one of the prior arts. The movement of the engagement movement block 809 is avoided by arranging the movement pressing plate 803 and contacting with the engagement movement block 809 to drive the engagement movement block 809 to move and arranging the installation pressing hole 820.

In this embodiment, the lower surface of the linking motion block 809 is provided with a connection mounting plate 815, the connection mounting plate 815 may be any one of the prior arts, the inner wall of the packer main body 1 is provided with a first back-and-forth telescopic rod 816, the first back-and-forth telescopic rod 816 may be any one of the prior arts, one end of the first back-and-forth telescopic rod 816 is fixedly connected with the connection mounting plate 815 on the side far away from the rotating screw rod 802, the surface of the first back-and-forth telescopic rod 816 is sleeved with a second return spring 817, the second return spring 817 may be any one of the prior arts, one end of the second return spring 817 is fixedly connected with the inner wall of the packer main body 1, and the other end of the second return spring 817 is fixedly connected with the connection mounting plate 815 on the side far away from the rotating screw rod 802. Through setting up connection mounting panel 815, assist through second reset spring 817 and link up motion block 809 and reset, through setting up first round trip telescopic link 816, prevent that second reset spring 817 from taking place serious deformation.

In this embodiment, the surface of the linkage fixing plate 804 is respectively provided with a plurality of pressing plates 810 and a connecting moving plate 818, the pressing plates 810 and the connecting moving plate 818 can be any one of the prior art, the inner wall of the packer body 1 is provided with a plurality of connecting guide slots 814, and the side wall of the connecting moving plate 818 is slidably connected with the inner wall of the connecting guide slots 814. By providing the connection guide groove 814, the movement of the engagement moving plate 818 is guided and limited, so that the linkage fixing plate 804 does not rotate, and by providing the pressing plate 810, the elastic expansion airbag 812 is pressed to complete the pressing operation.

As a preferred implementation manner in this embodiment, the inner wall of the packer body 1 is provided with a plurality of installation placing boxes 811, the installation placing boxes 811 may be any one of the prior art, the inner wall of the packer body 1 is provided with a plurality of air intake holes, the surface of the air intake holes is provided with an elastic expansion airbag 812, the elastic expansion airbag 812 may be any one of the prior art, and the elastic expansion airbag 812 is disposed inside the installation placing boxes 811. By arranging the air inlet holes, avoidance is performed, so that the air pressure of the elastic expansion air bag 812 is conveniently pressed into the second sealing ring 7 to enable the second sealing ring to expand and deform, and the stability of the elastic expansion air bag 812 after being stressed is ensured by arranging the installation and placement box 811.

In this embodiment, a plurality of installation boxes 811 are provided with installation avoiding grooves 813 on one side close to the rotating screw shaft 802, and a movable through hole 819 is provided on the upper surface of the installation boxes 811, the movable through hole 819 corresponding to the position of the pressing plate 810. By arranging the mounting avoidance groove 813 and the movable through hole 819, avoidance of movement of the pressing plate 810 is achieved.

As a preferred implementation manner in this embodiment, the surface of the packer body 1 is provided with a mounting guide plate 805, the mounting guide plate 805 may be any one of the prior art, opposite surfaces of the upper and lower mounting guide plates 805 are slidably connected with the same positioning friction plate 807, the positioning friction plate 807 may be any one of the prior art, the inner wall of the positioning friction plate 807 is provided with a second back-and-forth expansion link 806, the second back-and-forth expansion link 806 may be any one of the prior art, the other end of the second back-and-forth expansion link 806 is fixedly connected with the surface of the packer body 1, the surface of the second back-and-forth expansion link 806 is sleeved with a first return spring 808, one end of the first return spring 808 is fixedly connected with the surface of the packer body 1, and the other end of the first return spring 808 is fixedly connected with the inner wall of the positioning friction plate 807. The positioning friction plate 807 is guided and limited by arranging the mounting guide plate 805, positioning is assisted by arranging the positioning friction plate 807, the positioning friction plate 807 is driven to reset by arranging the first reset spring 808, and the stability of the movement of the first reset spring 808 is kept by arranging the second back and forth telescopic rod 806.

The working principle of the application is as follows: when the packer is used, an operator places the packer body 1 in a pipeline integrally, in the process of descending the packer body 1 integrally, the surface of the positioning friction plate 807 is in contact with the inner wall of the pipeline, the first return spring 808 is compressed to deform, the positioning friction plate 807 extrudes the inner wall of the pipeline under the action of the return force of the first return spring 808, positioning is assisted, when mechanical pressurization and sealing are needed, the rotary turntable 801 is rotated, the rotary turntable 801 drives the rotary screw 802 to rotate, the rotary screw 802 rotates to drive the linkage fixed plate 804 to move, the linkage fixed plate 804 moves to drive the linkage moving plate 818 to conduct guiding sliding along the inner wall of the connecting guide groove 814, and further the linkage fixed plate 804 cannot rotate.

The rotating screw rod 802 rotates and descends to drive the moving pressing plate 803 to descend, the inclined surface of the lower surface of the moving pressing plate 803 contacts with the inclined surface of the upper surface of the connecting moving block 809 to drive the connecting moving block 809 to move, one side of the connecting moving block 809 slides towards the direction of the first sealing ring 6, the connecting moving block 809 moves to drive the connecting mounting plate 815 to move, the connecting mounting plate 815 moves to compress the second return spring 817 to be shortened, the linkage fixing plate 804 descends to drive the connecting moving plate 818 and the pressing plate 810 to move together, the pressing plate 810 descends to enter the mounting placing box 811 through the movable through hole 819 to compress the elastic expansion air bag 812, air in the elastic expansion air bag 812 enters the second sealing ring 7 through the air inlet hole to enable the second sealing ring 7 to expand and deform, the surface and the inner wall of the pipeline are extruded to finish sealing, and by means of the structure, the manual physical mechanical pressing is performed, and the sealing effect is better.

It should be noted that, the components, modules and mechanisms of the present application, which are not described in detail, are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods. The connection relationship between the structures may be any of the prior art, such as: the mode of the screw connection realized by the matched use of the bolt and the nut, the clamping mode realized by the matched use of the size matching and the clamping piece, the integrated forming by forging, cutting and the like, the welding and fixing mode and the like, and the technical field can be combined with the description and the structural characteristics of the application by referring to technical manuals or the conventional experimental method. 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. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present application, and although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present application.

Claims

1. A packer comprising a packer body (1), characterized in that: the novel high-pressure packer comprises a packer body (1), and is characterized in that an installation end head (2) is arranged at the bottom end of the packer body (1), an installation sealing cover (3) is arranged on the upper surface of the packer body (1), a positioning hole is formed in the upper surface of the installation sealing cover (3), a conveying installation pipe (4) is arranged on the inner wall of the positioning hole, a thread fixing groove (5) is formed in the surface of the packer body (1), a first sealing ring (6) and a second sealing ring (7) are respectively arranged on the surface of the packer body (1), a threaded hole is formed in the upper surface of the packer body (1), and a mechanical pressurizing sealing mechanism (8) is connected with the inner wall of the threaded hole in a threaded mode; the mechanical pressurizing sealing mechanism (8) comprises a rotating screw rod (802) which is connected with the inner wall of the threaded hole in a threaded mode, a rotating turntable (801) is arranged at the top end of the rotating screw rod (802), and a linkage fixing plate (804) is connected with the bottom end of the rotating screw rod (802) in a rotating mode; the surface of the rotating screw rod (802) is provided with a moving pressing disc (803), the lower surface of the moving pressing disc (803) is provided with an inclined surface, the inner wall of the packer main body (1) is provided with a plurality of mounting extrusion holes (820), and the inner walls of the mounting extrusion holes (820) are all in sliding connection with a connecting moving block (809); the lower surface of the connection motion block (809) is provided with a connection mounting plate (815), the inner wall of the packer main body (1) is provided with a first back-and-forth telescopic rod (816), one end of the first back-and-forth telescopic rod (816) is fixedly connected with one side, far away from the rotary screw rod (802), of the connection mounting plate (815), a second reset spring (817) is sleeved on the surface of the first back-and-forth telescopic rod (816), one end of the second reset spring (817) is fixedly connected with the inner wall of the packer main body (1), and the other end of the second reset spring (817) is fixedly connected with one side, far away from the rotary screw rod (802), of the connection mounting plate (815); the surface of linkage fixed plate (804) is provided with a plurality of pressing press boards (810), links up kinematic plate (818) respectively, the inner wall of packer main part (1) is provided with a plurality of connection guide slots (814), the lateral wall of linking kinematic plate (818) and the inner wall sliding connection who connects guide slots (814).

2. A packer according to claim 1, characterized in that: the inner wall of packer main part (1) is provided with a plurality of installations and places case (811), a plurality of inlet ports have been seted up to the inner wall of packer main part (1), the surface of inlet port is provided with elasticity inflation gasbag (812), elasticity inflation gasbag (812) set up in the inside of installation and place case (811).

3. A packer according to claim 2, characterized in that: the installation avoidance grooves (813) are formed in one sides, close to the rotating screw rods (802), of the installation placement boxes (811), movable through holes (819) are formed in the upper surfaces of the installation placement boxes (811), and the positions of the movable through holes (819) and the pressing plates (810) correspond to each other.

4. A packer according to claim 1, characterized in that: the surface of the packer body (1) is provided with a mounting guide plate (805).

5. A packer according to claim 4, characterized in that: the opposite surfaces of the upper and lower installation guide plates (805) are connected with the same positioning friction plate (807) in a sliding manner.

6. A packer according to claim 5, characterized in that: the inner wall of location friction plate (807) is provided with second round trip telescopic link (806), the other end of second round trip telescopic link (806) is connected with the fixed surface of packer main part (1), the surface cover of second round trip telescopic link (806) is equipped with first reset spring (808), the fixed surface of one end and packer main part (1) of first reset spring (808) is connected, the other end and the inner wall fixed connection of location friction plate (807) of first reset spring (808).