CN212317925U

CN212317925U - Self-locking type midway-setting-preventing water plugging packer for oilfield exploitation

Info

Publication number: CN212317925U
Application number: CN202021180522.1U
Authority: CN
Inventors: 田亮; 卜杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-01-08
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a from locking-type of oil field division adoption prevent midway seat shutoff water packer, including shutoff water seal spacer main part, shutoff water seal spacer main part includes the top connection, is located center tube and the lower clutch of top connection below, the center tube includes balanced cover, and the bottom fixed mounting of top connection has the collar, goes up the equal fixed mounting in both sides of balanced cover and has the rectangular block, and the top fixed mounting of rectangular block has the rectangular rod, and the top of rectangular rod is established to the inclined plane, goes up the top of balanced cover and the bottom of top connection and all bonds and be fixed with the sealing washer. The utility model relates to a rationally, the completion top connection of being convenient for rapid and stable and the seal installation operation of last balanced cover, and the setting of a plurality of triangle draw-in grooves, be convenient for adjust the leakproofness of sealing washer according to actual need, avoid because of long-time the use, cause the unsatisfactory phenomenon of sealed effect, improve its seal stability, satisfy the user demand.

Description

Self-locking type midway-setting-preventing water plugging packer for oilfield exploitation

Technical Field

The utility model relates to a from locking-type prevent midway a shutoff water packer technical field, especially relate to a from locking-type prevent midway a shutoff water packer that oil field opened adoption.

Background

The self-locking type midway-setting-preventing water plugging packer is a common tool in oil field exploitation, and can realize interlayer packing in the working process of going down a well, and the self-locking type midway-setting-preventing water plugging packer is retrieved and applied for the number: 2014206928387, discloses a white lock type midway seat blocking prevention water packer for oilfield exploitation, which comprises an upper joint, a central tube, a lower central tube and a lower joint which are sequentially connected by screw threads, wherein the outer part of the central tube is provided with an outer central tube, and the upper end and the lower end of the outer central tube are respectively connected with a pressure cap balance piston, a lower balance sleeve, an upper rubber tube seat, a rubber tube shoulder pad, an edge rubber tube and a middle rubber tube by screw threads; the upper end and the lower end of the lower balance sleeve are respectively in threaded connection, the upper balance sleeve is connected with the upper rubber sleeve seat, the lower end of the central tube is sleeved with the seat sealing piston and the lower central tube, and the upper balance sleeve is connected with the upper joint through threads.

The above-mentioned patent still has some not enough, it is relatively poor with the connection sealing stability of last balanced cover to connect on, because it is when using to connect with last balanced cover, needs often to carry out the split operation, connect on and go up balanced cover and pass through threaded connection's mode, frequent split, it is not hard up to appear the screw thread easily, causes the unsatisfactory phenomenon of sealed effect, and then influences normal use, can not satisfy the user demand, therefore we have proposed that the self-locking type of oil field division adoption prevents midway seat shutoff water packer is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a self-locking type anti-midway setting water plugging packer for oil field exploitation.

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

a self-locking type midway-setting-preventing blocking water packer for oil field exploitation comprises a blocking water packer main body, wherein the blocking water packer main body comprises an upper joint, a central pipe and a lower joint, the central pipe is positioned below the upper joint and comprises an upper balance sleeve, a mounting ring is fixedly mounted at the bottom of the upper joint, rectangular blocks are fixedly mounted on two sides of the upper balance sleeve respectively, a rectangular rod is fixedly mounted at the top of each rectangular block, the top end of each rectangular rod is provided with an inclined plane, sealing rings are fixedly bonded at the top of the upper balance sleeve and the bottom of the upper joint respectively, one sides of the two sealing rings, which are close to each other, are in close contact with each other, the top ends of the rectangular rods extend to the upper part of the mounting ring, the mounting ring is slidably sleeved on the two rectangular rods, a first rectangular hole is formed in the inner wall of the right side of the mounting ring, a first rectangular groove is formed, the left end of the moving rod extends into the first rectangular groove, a first through hole communicated with the mounting ring and the upper joint is formed in the top of the moving rod, a through hole is formed in one side of the top of the moving rod, one rectangular rod on the right side of the two rectangular rods is located in the through hole, triangular clamping blocks are fixedly mounted on the left end of the moving rod and the inner wall of the right side of the through hole, the bottom of each triangular clamping block is provided with an inclined surface, a plurality of triangular clamping grooves with openings in the front side and the rear side are formed in the right side of the rectangular rod, the inner wall of the bottom of each triangular clamping groove is provided with an inclined surface, the inclined surfaces on the triangular clamping blocks are matched with the inclined surfaces on the corresponding triangular clamping grooves and the inclined surfaces on the rectangular rods, the left side of each triangular clamping block extends into one triangular clamping groove of the corresponding triangular clamping grooves, each triangular clamping block is clamped with the corresponding triangular clamping groove, fixed mounting has the same fixed block that is located the second rectangular hole between the top inner wall in first rectangular hole and the bottom inner wall, fixed mounting has a plurality of springs between the left side of fixed block and the left side inner wall in second rectangular hole, the right-hand member of carriage release lever extends to the collar and fixed mounting has the connecting plate outward, the left side fixed mounting of connecting plate has two locating levers, the carriage release lever is located between two locating levers, the collar sliding sleeve is established on two locating levers, the right side fixed mounting of connecting plate has the semicircle pull ring.

Preferably, two second rectangular grooves are formed in the right side of the mounting ring, and the inner walls of the second rectangular grooves are in sliding connection with the outer sides of the corresponding positioning rods.

Preferably, two third rectangular holes are formed in the top of the mounting ring, the rectangular rods are located in the corresponding third rectangular holes, the third rectangular hole located on the left side is communicated with the first rectangular groove, the third rectangular hole located on the right side is communicated with the first rectangular hole, and the inner wall of each third rectangular hole is in sliding connection with the outer side of the corresponding rectangular rod.

Preferably, the movable rod is coated with a sealing rubber sheet, and the outer side of the sealing rubber sheet is connected with the inner wall of the first rectangular groove and the inner wall of the first rectangular hole in a sliding mode.

Preferably, the front side and the rear side of the fixing block are respectively in sliding connection with the front side inner wall and the rear side inner wall of the second rectangular hole.

Preferably, the front and rear inner walls of the through hole are in movable contact with the front and rear sides of the rectangular bar located at the right side, respectively.

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

when the upper joint and the upper balance sleeve need to be disassembled, a semicircular pull ring is pulled rightwards to drive the moving rod and the two positioning rods to move rightwards through the connecting rods, the moving rod compresses the spring, the two triangular clamping blocks are driven to move rightwards to move out of one triangular clamping groove clamped with the two triangular clamping blocks while the moving rod moves, then the upper joint is pulled upwards to drive the installation ring to move downwards from the two rectangular rods, the disassembling operation of the upper joint and the upper balance sleeve can be completed, when the upper joint and the upper balance sleeve need to be assembled, the third rectangular hole is aligned with the corresponding rectangular rod, and the installation ring is pressed downwards, make the rectangular pole be located the third rectangular hole that corresponds gradually, the collar passes through the carriage release lever and drives two triangle fixture blocks downstream and extrude the inclined plane that corresponds, the extruded power drives the triangle fixture block that corresponds and moves right, two triangle fixture blocks drive the carriage release lever simultaneously and move right and compress the spring, drive rather than fixed connection's sealing washer when the collar and move to the top in close contact with the sealing washer that corresponds, the triangle fixture block aligns with the triangle draw-in groove that corresponds, the elasticity of spring drives two triangle fixture blocks through the carriage release lever and moves left to the triangle draw-in groove that aligns this moment, and then make the collar fixed, and then accomplished the installation of top connection with last balance sleeve, the setting of a plurality of triangle draw-in grooves, be convenient for adjust the sealed effect of sealing washer, improve its installation sealed stability.

The utility model relates to a rationally, the completion top connection of being convenient for rapid and stable and the seal installation operation of last balanced cover, and the setting of a plurality of triangle draw-in grooves, be convenient for adjust the leakproofness of sealing washer according to actual need, avoid because of long-time the use, cause the unsatisfactory phenomenon of sealed effect, improve its seal stability, satisfy the user demand.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of a self-locking type midway-setting block-proof water packer for oilfield exploitation provided by the utility model;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is an enlarged schematic structural view of a portion B in fig. 2.

In the figure: the device comprises an upper joint 1, an upper balance sleeve 2, a rectangular block 3, a sealing ring 4, a rectangular rod 5, a mounting ring 6, a first rectangular hole 7, a first rectangular groove 8, a movable rod 9, a triangular clamping groove 10, a triangular clamping block 11, a second rectangular hole 12, a spring 13, a fixing block 14, a connecting plate 15, a positioning rod 16 and a through hole 17.

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.

Referring to fig. 1-3, a self-locking type midway-setting-preventing water plugging packer for oil field exploitation comprises a water plugging packer main body, the water plugging packer main body comprises an upper joint 1, a central pipe and a lower joint, the central pipe is positioned below the upper joint 1, the central pipe comprises an upper balance sleeve 2, a mounting ring 6 is fixedly mounted at the bottom of the upper joint 1, rectangular blocks 3 are fixedly mounted at two sides of the upper balance sleeve 2, a rectangular rod 5 is fixedly mounted at the top of the rectangular block 3, the top end of the rectangular rod 5 is an inclined plane, sealing rings 4 are fixedly bonded at the top of the upper balance sleeve 2 and the bottom of the upper joint 1, one sides of the two sealing rings 4 close to each other are in tight contact, the top end of the rectangular rod 5 extends to the upper part of the mounting ring 6, the mounting ring 6 is slidably sleeved on the two rectangular rods 5, a first rectangular hole 7 is formed in the inner wall at the right side of the mounting ring 6, a, the inner sealing sliding sleeve of the first rectangular hole 7 is provided with a moving rod 9, the left end of the moving rod 9 extends into a first rectangular groove 8, the top of the moving rod 9 is provided with a first through hole communicated with the mounting ring 6 and the upper joint 1, one side of the top of the moving rod 9 is provided with a through hole 17, one rectangular rod 5 on the right side of the two rectangular rods 5 is positioned in the through hole 17, the left end of the moving rod 9 and the inner wall on the right side of the through hole 17 are fixedly provided with a triangular clamping block 11, the bottom of the triangular clamping block 11 is provided with an inclined plane, the right side of the rectangular rod 5 is provided with a plurality of triangular clamping grooves 10 with front sides and back sides both provided with openings, the inner wall at the bottom of the triangular clamping groove 10 is provided with an inclined plane, the inclined plane on the triangular clamping block 11 is matched with the inclined plane on the corresponding triangular clamping groove 10 and the inclined plane on the rectangular rod 5, the left side, the triangular clamping block 11 is clamped with a corresponding triangular clamping groove 10, one side of the top of the movable rod 9 is provided with a second rectangular hole 12 positioned at the right side of the perforation 17, a fixed block 14 positioned in the second rectangular hole 12 is fixedly arranged between the inner wall at the top and the inner wall at the bottom of the first rectangular hole 7, a plurality of springs 13 are fixedly arranged between the left side of the fixed block 14 and the inner wall at the left side of the second rectangular hole 12, the right end of the movable rod 9 extends to the outside of the mounting ring 6 and is fixedly provided with a connecting plate 15, the left side of the connecting plate 15 is fixedly provided with two positioning rods 16, the movable rod 9 is positioned between the two positioning rods 16, the mounting ring 6 is slidably sleeved on the two positioning rods 16, and the right side of the connecting plate 15 is fixedly provided with a semicircular pull ring, the utility model has reasonable design, is convenient for rapidly and stably completing the sealing installation operation of the upper, the sealing performance of the sealing ring 4 can be adjusted conveniently according to actual needs, the phenomenon that the sealing effect is not ideal due to long-time use is avoided, the sealing stability of the sealing ring is improved, and the use requirements are met.

In the utility model, two second rectangular grooves are arranged on the right side of the mounting ring 6, the inner walls of the second rectangular grooves are connected with the outer sides of the corresponding positioning rods 16 in a sliding way, two third rectangular holes are arranged on the top of the mounting ring 6, the rectangular rods 5 are arranged in the corresponding third rectangular holes, the third rectangular hole arranged on the left side is communicated with the first rectangular groove 8, the third rectangular hole arranged on the right side is communicated with the first rectangular hole 7, the inner walls of the third rectangular holes are respectively connected with the outer sides of the corresponding rectangular rods 5 in a sliding way, the movable rod 9 is coated with the sealing rubber, the outer sides of the sealing rubber are connected with the inner walls of the first rectangular grooves 8 and the inner walls of the first rectangular holes 7 in a sliding way, the front side and the rear side of the fixed block 14 are respectively connected with the front side inner wall and the rear side inner wall of the second rectangular hole 12 in a sliding way, the front side inner wall and the rear side inner wall of the perforation 17 are respectively in movable contact with, the utility model relates to a rationally, the completion top connection 1 of being convenient for rapid and stable and the seal installation operation of last balanced cover 2, and the setting of a plurality of triangle draw-in grooves 10, be convenient for adjust the leakproofness of sealing washer 4 according to actual need, avoid because of long-time the use, cause the unsatisfactory phenomenon of sealed effect, improve its seal stability, satisfy the user demand.

The working principle is as follows: when the upper connector 1 and the upper balance sleeve 2 need to be detached, a semicircular pull ring is pulled rightwards, the semicircular pull ring drives a connecting rod 15 to move rightwards, the connecting rod 15 drives a moving rod 9 and two positioning rods 16 to move rightwards, the moving rod 9 drives two triangular clamping blocks 11 to move rightwards when moving, the moving rod 9 gradually compresses a spring 13 when moving, the triangular clamping blocks 11 gradually move out of one triangular clamping groove 10 clamped with the triangular clamping blocks when moving, fixing of the mounting ring 6 is further released, the upper connector 1 is pulled upwards, the upper connector 1 drives the mounting ring 6 to move downwards from two rectangular rods 5, the mounting ring 6 drives the sealing ring 4 fixedly connected with the mounting ring to upwards separate from the corresponding sealing ring 4, and detaching operation of the upper connector 1 and the upper balance sleeve 2 can be completed;

when the upper joint 1 and the upper balance sleeve 2 need to be installed, the third rectangular hole is aligned with the corresponding rectangular rod 5, the installation ring 6 is pressed downwards, the installation ring 6 drives the third rectangular hole to move downwards, so that the rectangular rod 5 is gradually positioned in the corresponding third rectangular hole, the installation ring 6 drives the two triangular clamping blocks 11 to move downwards through the moving rod 9 while moving, when the inclined surfaces of the triangular clamping blocks 11 are contacted with the corresponding inclined surfaces, the triangular clamping blocks 11 continue to move downwards and extrude the corresponding inclined surfaces, the extruding force drives the corresponding triangular clamping blocks 11 to move rightwards, the two triangular clamping blocks 11 simultaneously drive the moving rod 9 to move rightwards, the moving rod 9 compresses the spring 13 while moving, when the installation ring 6 drives the sealing ring 4 fixedly connected with the installation ring 6 to move to be closely contacted with the top of the corresponding sealing ring 4, the triangular clamping blocks 11 are aligned with the corresponding triangular clamping grooves 10, at the moment, the spring 13 in a compressed state is reset, the elastic force of the spring 13 drives the movable rod 9 to move leftwards, the movable rod 9 drives the two triangular clamping blocks 11 to move leftwards into the aligned triangular clamping grooves 10, the triangular clamping blocks 11 are clamped with the corresponding triangular clamping grooves 10, the mounting ring 6 is fixed, and the mounting operation of the upper connector 1 and the upper balance sleeve 2 is completed;

when the sealing ring 4 is used for a long time, and the phenomenon of abrasion or aging occurs, the mounting ring 6 is continuously pressed downwards, so that the mounting ring 6 drives the sealing ring 4 fixedly connected with the mounting ring 6 to be mutually extruded and contracted and closely contacted with the other sealing ring 4, the enhanced sealing is achieved, meanwhile, the plurality of triangular clamping grooves 10 are matched, the adjustment of the sealing effect of the sealing ring 4 is achieved, the stability of the mounting and sealing is improved, and the phenomenon that the sealing effect is not ideal due to long-time use is avoided.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The self-locking type midway setting-preventing blocking water packer for oil field exploitation comprises a blocking water packer main body, wherein the blocking water packer main body comprises an upper joint (1), a central pipe and a lower joint, the central pipe is positioned below the upper joint (1), the blocking water packer main body is characterized in that the central pipe comprises an upper balance sleeve (2), a mounting ring (6) is fixedly mounted at the bottom of the upper joint (1), rectangular blocks (3) are fixedly mounted on two sides of the upper balance sleeve (2), a rectangular rod (5) is fixedly mounted at the top of each rectangular block (3), the top end of each rectangular rod (5) is arranged to be an inclined plane, sealing rings (4) are fixedly bonded at the top of the upper balance sleeve (2) and the bottom of the upper joint (1), one sides of the two sealing rings (4) which are close to each other are in close contact, the top ends of the rectangular rods (5) extend to the upper sides of the mounting rings (6), the mounting rings (6) are, a first rectangular hole (7) is formed in the inner wall of the right side of the mounting ring (6), a first rectangular groove (8) is formed in the inner wall of the left side of the mounting ring (6), a moving rod (9) is sleeved in the inner sealing sliding sleeve of the first rectangular hole (7), the left end of the moving rod (9) extends into the first rectangular groove (8), a first through hole communicated with the mounting ring (6) and the upper connector (1) is formed in the top of the moving rod (9), a through hole (17) is formed in one side of the top of the moving rod (9), one rectangular rod (5) located on the right side of the two rectangular rods (5) is located in the through hole (17), triangular clamping blocks (11) are fixedly mounted on the inner walls of the left end of the moving rod (9) and the right side of the through hole (17), the bottom of each triangular clamping block (11) is arranged on an inclined plane, a plurality of triangular clamping grooves (10) with the front side and the rear side both arranged in an, the inner wall of the bottom of the triangular clamping groove (10) is set to be an inclined plane, the inclined plane on the triangular clamping block (11) is matched with the inclined plane on the corresponding triangular clamping groove (10) and the inclined plane on the rectangular rod (5), the left side of the triangular clamping block (11) extends into one triangular clamping groove (10) in the plurality of corresponding triangular clamping grooves (10), the triangular clamping block (11) is clamped with the corresponding triangular clamping groove (10), one side of the top of the movable rod (9) is provided with a second rectangular hole (12) positioned at the right side of the through hole (17), a fixed block (14) which is positioned in the second rectangular hole (12) is fixedly arranged between the inner wall of the top of the first rectangular hole (7) and the inner wall of the bottom, a plurality of springs (13) are fixedly arranged between the left side of the fixed block (14) and the inner wall of the left side of the second rectangular hole (12), the right end of the movable rod (9) extends out of the mounting ring, two positioning rods (16) are fixedly mounted on the left side of the connecting plate (15), the moving rod (9) is located between the two positioning rods (16), the mounting ring (6) is slidably sleeved on the two positioning rods (16), and a semicircular pull ring is fixedly mounted on the right side of the connecting plate (15).

2. The self-locking type midway-setting-preventing water-plugging packer for oilfield development according to claim 1, wherein two second rectangular grooves are formed in the right side of the mounting ring (6), and the inner walls of the second rectangular grooves are slidably connected with the outer sides of the corresponding positioning rods (16).

3. The self-locking type midway-setting-preventing water plugging packer for oilfield exploitation according to claim 1, wherein two third rectangular holes are formed in the top of the mounting ring (6), the rectangular rods (5) are located in the corresponding third rectangular holes, the third rectangular hole located on the left side is communicated with the first rectangular groove (8), the third rectangular hole located on the right side is communicated with the first rectangular hole (7), and the inner walls of the third rectangular holes are respectively in sliding connection with the outer sides of the corresponding rectangular rods (5).

4. The self-locking type midway-setting-preventing water-plugging packer for oilfield development according to claim 1, wherein the moving rod (9) is coated with a sealing rubber sheet, and the outer side of the sealing rubber sheet is in sliding connection with the inner wall of the first rectangular groove (8) and the inner wall of the first rectangular hole (7).

5. The self-locking type midway-setting-preventing water-plugging packer for oilfield exploitation according to claim 1, wherein the front side and the rear side of the fixing block (14) are respectively in sliding connection with the front side inner wall and the rear side inner wall of the second rectangular hole (12).

6. The self-locking type midway-setting-preventing water-plugging packer for oilfield exploitation according to claim 1, wherein the front inner wall and the rear inner wall of the perforation (17) are respectively in movable contact with the front side and the rear side of the rectangular rod (5) on the right side.