CN215213420U

CN215213420U - High-sealing casing packer

Info

Publication number: CN215213420U
Application number: CN202121345161.6U
Authority: CN
Inventors: 刘智
Original assignee: Dongying Tianjin Petroleum Technology Development Co ltd
Current assignee: Dongying Tianjin Petroleum Technology Development Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-17
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a high-sealing casing packer, which comprises a top connecting pipe, wherein a sealing mechanism is arranged at the inner side of the top connecting pipe, the sealing mechanism comprises a central pipe, a fixed pipe, a hydraulic rod, a flow limiting plate, a plugging ball, a chute, a groove, a sliding rod, a compression spring and a clamping block, the inner side of the top connecting pipe is embedded and connected with a central pipe, the outer side of the central pipe is sleeved with a fixed pipe, the sealing mechanism can seal the central pipe through a plugging ball and can also clamp and fix the plugging ball through a clamping block, so that workers can conveniently and quickly seal the central pipe through the plugging ball and can fix and limit the plugging ball to keep the sealing stability of the plugging ball to the central pipe, and then improve the sealed effect of packer, avoided ordinary packer leakproofness poor, influence the sealed effect of packer to the sheathed tube.

Description

High-sealing casing packer

Technical Field

The utility model relates to a packer technical field specifically is a high sealed sleeve pipe packer.

Background

The packer is used for layering in an oil production process, an oil production channel is designed on the packer, when the packer is set, the piston sleeve ascends, the oil production channel is opened, after the packer is set, the upper pressure acts on the balance piston, the rubber cylinder is pushed upwards, the deblocking pin is prevented from shearing force, when the deblocking is performed, the deblocking pin is cut off by the friction force between the rubber cylinder and the sleeve, the piston sleeve descends, and the oil production channel is closed;

however, the casing packer on the market at present has the disadvantages of complex structure, difficult operation, poor sealing performance, short sealing time, unsatisfactory sealing effect and incapability of meeting the sealing requirement of workers on the casing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high sealed sleeve pipe packer can effectively solve the sleeve pipe packer structure complicacy on the existing market that proposes in the above-mentioned background art, the operation difficulty, and the leakproofness is poor, can only carry out short duration and seal, and sealed effect is not ideal, can't satisfy the problem that the staff required the sheathed tube leakproofness.

In order to achieve the above object, the utility model provides a following technical scheme: a high-sealing casing packer comprises a top connecting pipe, wherein a sealing mechanism is arranged on the inner side of the top connecting pipe;

the sealing mechanism comprises a central pipe, a fixed pipe, a hydraulic rod, a flow limiting plate, a plugging ball, a sliding groove, a sliding rod, a compression spring and a clamping block;

the inboard embedding of top connecting pipe is connected with the center tube, fixed pipe has been cup jointed in the center tube outside, the top connecting pipe bottom corresponds fixed pipe top position department equidistance and is connected with the hydraulic stem, the inboard embedding of center tube is connected with the current-limiting plate, the inboard embedding of current-limiting plate is connected with the shutoff ball, the spout has been seted up to fixed intraductal symmetry, the inboard corresponding spout one side position department of center tube sets up flutedly, the inboard embedding sliding connection of recess has the slide bar, the slide bar outside corresponds inboard position department of recess and has cup jointed compression spring, a slide bar tip corresponds the inboard position department of center tube and is connected with the screens piece.

Preferably, the fixed pipe is sleeved outside the central pipe in a sliding manner, one end of the hydraulic rod is fixedly connected with the top end of the fixed pipe, the flow limiting plate is connected with the blocking ball in a clamping manner, the other end of the sliding rod is connected to the inner side of the sliding groove in a sliding manner, one end of the compression spring is connected to the inner side of the groove in an embedded manner, and the bottom end of the compression spring is fixedly connected with the outer side of the sliding rod.

Preferably, an anchoring mechanism is installed on the outer side of the central tube;

the anchoring mechanism comprises a sliding pipe, a rubber cylinder, a supporting telescopic rod, a supporting spring, a bottom connecting pipe, a rotating block, a limiting block, a clamping block and a clamping groove;

the utility model discloses a rubber tube, including center tube, fixed pipe, support spring, support tube, center tube, support tube, fixing pipe.

Preferably, the sliding pipe and the rubber cylinder are both sleeved outside the central pipe in a sliding mode, one end of the supporting spring is connected to the inner side of the sliding pipe in an embedded mode, and the clamping block is connected to the inner side of the clamping groove in an embedded mode.

Preferably, the rubber circle has been cup jointed to bottom connecting pipe outside symmetry, the bottom connecting pipe outside corresponds between two rubber circles position department equidistance embedding and is connected with the fixed block, the inboard embedding sliding connection of fixed block has spacing telescopic link, damping spring has been cup jointed in the spacing telescopic link outside, a spacing telescopic link end connection has the pulley.

Preferably, one end of the damping spring is embedded and connected to the inner side of the fixed block, and one end of the outer side of the pulley is embedded and slidably connected to the inner side of the fixed block.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with sealing mechanism, can seal the center tube through the shutoff ball, also can carry out the centre gripping through the screens piece to the shutoff ball fixed, the staff of being convenient for seals the center tube through the convenient quick of shutoff ball, also the staff of being convenient for fixes spacingly to the shutoff ball, keeps the sealing stability of shutoff ball to the center tube, and then improves the sealed effect of packer, has avoided ordinary packer leakproofness poor, influences the sealed effect of packer to the sheathed tube.

2. Be provided with anchoring mechanism, can seal between packer and the sleeve pipe through the packing element, also can carry out spacing fixed to the packer through the stopper, the staff of being convenient for strengthens the leakproofness between packer and the sleeve pipe, also the staff of being convenient for is spacing fixed the position of the intraductal required installation of sleeve with the packer, has avoided the packer to be sealed fixed shakiness at the sleeve pipe internal seal, takes place position slip and skew, influences the sealed effect of packer.

3. Be provided with the rubber circle, the fixed block, spacing telescopic link, damping spring and pulley, can cushion the protection to the packer outside, also can remove the packer through the pulley, the staff of being convenient for reduces the friction between packer and the intraductal wall of sleeve through the pulley, it is inboard to move the sleeve pipe with the packer is convenient, the staff of also being convenient for protects the packer outside, rub with the intraductal side of sleeve when having avoided the packer installation and cause the damage, reduce the life of packer.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the sealing mechanism of the present invention;

fig. 3 is a schematic structural view of the anchoring mechanism of the present invention;

FIG. 4 is a schematic view of the installation structure of the rubber ring of the present invention;

reference numbers in the figures: 1. a top connecting pipe;

2. a sealing mechanism; 201. a central tube; 202. a fixed tube; 203. a hydraulic lever; 204. a restrictor plate; 205. plugging the ball; 206. a chute; 207. a groove; 208. a slide bar; 209. a compression spring; 210. a bit block;

3. an anchoring mechanism; 301. a sliding tube; 302. a rubber cylinder; 303. supporting the telescopic rod; 304. a support spring; 305. a bottom connecting pipe; 306. rotating the block; 307. a limiting block; 308. a clamping block; 309. a card slot;

4. a rubber ring; 5. a fixed block; 6. limiting the telescopic rod; 7. a damping spring; 8. a pulley.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-4, the utility model provides a technical scheme, a high-sealing casing packer, including top connecting pipe 1, it is convenient for the staff to seal center tube 201 through blocking ball 205 fast and conveniently, also be convenient for the staff to fix the spacing to blocking ball 205, keep the sealing stability of blocking ball 205 to center tube 201, and then improve the sealing effect of packer, the inboard sealing mechanism 2 of installing of top connecting pipe 1;

the sealing mechanism 2 comprises a central pipe 201, a fixed pipe 202, a hydraulic rod 203, a flow limiting plate 204, a blocking ball 205, a sliding groove 206, a groove 207, a sliding rod 208, a compression spring 209 and a clamping block 210;

a center tube 201 is embedded and connected to the inner side of the top connecting tube 1, a fixed tube 202 is sleeved on the outer side of the center tube 201, the fixed tube 202 is slidably sleeved on the outer side of the center tube 201, hydraulic rods 203 are equidistantly connected to the bottom end of the top connecting tube 1 corresponding to the top end of the fixed tube 202, one end of each hydraulic rod 203 is fixedly connected to the top end of the fixed tube 202, a restrictor plate 204 is embedded and connected to the inner side of the center tube 201, a plugging ball 205 is embedded and connected to the inner side of the restrictor plate 204, the restrictor plate 204 is connected to the plugging ball 205 in a clamping manner, sliding grooves 206 are symmetrically formed in the inner side of the fixed tube 202, a groove 207 is formed in the inner side of the center tube 201 corresponding to one side of the sliding groove 206, a sliding rod 208 is embedded and slidably connected to the inner side of the sliding groove 206, a compression spring 209 is sleeved on the outer side of the sliding rod 208, and the bottom end of the compression spring 209 is fixedly connected to the outer side of the sliding rod 208, one end of the compression spring 209 is embedded in and connected with one end of the sliding rod 208 inside the groove 207, and a clamping block 210 is connected to the position, corresponding to the inside of the central tube 201, of one end of the sliding rod 208, so that the problem that the sealing performance of a common packer is poor and the sealing effect of the packer on a sleeve is influenced is avoided.

The sealing performance between the packer and the casing can be conveniently enhanced by workers, the packer can be conveniently limited and fixed at a position to be installed in the casing by the workers, and the anchoring mechanism 3 is installed on the outer side of the central pipe 201;

the anchoring mechanism 3 comprises a sliding tube 301, a rubber cylinder 302, a supporting telescopic rod 303, a supporting spring 304, a bottom connecting tube 305, a rotating block 306, a limiting block 307, a clamping block 308 and a clamping groove 309;

the outer side of the central tube 201 is sleeved with a sliding tube 301 corresponding to the lower position of the fixed tube 202, the outer side of the central tube 201 is sleeved with a rubber tube 302 corresponding to the upper position of the sliding tube 301, the sliding tube 301 and the rubber tube 302 are both sleeved on the outer side of the central tube 201 in a sliding manner, the bottom end of the fixed tube 202 is equidistantly connected with a supporting telescopic rod 303 corresponding to the outer position of the rubber tube 302, the outer side of the central tube 201 is sleeved with a supporting spring 304 corresponding to the inner side of the sliding tube 301, one end of the sliding supporting spring 304 is embedded and connected to the inner side of the sliding tube 301, the bottom of the outer side of the central tube 201 is sleeved with a bottom connecting tube 305, the inner side of the bottom connecting tube 305 is equidistantly hinged with a rotating block 306 corresponding to the outer position of the central tube 201, one side of the rotating block 306 is hinged with a limiting block 307, the bottom end of the sliding tube 301 is equidistantly connected with a clamping block 308, the clamping groove 309 is equidistantly arranged at the inner side of the bottom connecting tube 305 corresponding to the clamping block 308, and the clamping block 308 is embedded and slidably connected to the inner side of the clamping groove 309, therefore, the sealing effect of the packer is prevented from being influenced by position sliding and deviation caused by unstable sealing and fixing of the packer in the sleeve.

Be convenient for the staff through the friction between 8 reduction packers and the intraductal wall of sleeve of pulley, it is inboard with the convenient removal sleeve pipe of packer, also be convenient for the staff protects the packer outside, rubber circle 4 has been cup jointed to bottom connecting pipe 305 outside symmetry, the bottom connecting pipe 305 outside corresponds between two rubber circles 4 position department equidistance embedding and is connected with

fixed block

5, 5 inboard embedding sliding connection of fixed block has spacing telescopic link 6, damping spring 7 has been cup jointed in the 6 outsides of spacing telescopic link, a 7 tip embedding of damping spring is connected in 5 inboards of fixed block, 6 tip of spacing telescopic link are connected with

pulley

8, 8 outside tip embedding sliding connection of pulley is in 5 inboards of fixed block, thereby rub with the intraductal side of sleeve when having avoided the packer installation and cause the damage, the life of packer is reduced.

The utility model discloses a theory of operation and use flow: first, the worker needs to connect the top connection pipe 1 and the bottom connection pipe 305 of the packer to the pipes, respectively, and then, to put the packer into the casing, at this time, the outer side of the packer is protected by the rubber ring 4, the damage caused by the friction between the outer side of the packer and the inner wall of the sleeve is prevented, meanwhile, the rubber ring rolls on the inner side of the sleeve by the pulley 8, the friction force is reduced, the sliding speed of the packer is increased, the packer can reach the position required to be installed in the sleeve more quickly, the elastic action of the damping spring 7 and the supporting and fixing of the limiting telescopic rod 6 are realized, the impact force on the pulley 8 is buffered, the pulley 8 is further protected, the pulley is prevented from colliding with the inner wall of the sleeve when sliding downwards to cause damage, and then, workers can inject drilling fluid into the pipeline and flow into the oil field through the central pipe 201 in the packer for collection;

when the casing needs to be sealed by the packer, a worker needs to stop injecting drilling fluid into the pipeline, and throw the plugging ball 205 into the central pipe 201 through the pipeline, so that the plugging ball 205 falls onto the flow limiting plate 204 to seal the central pipe 201, and meanwhile, the worker can start the hydraulic rod 203 to push the fixed pipe 202 to slide downwards, drive the chute 206 in the fixed pipe 202 to slide downwards, extrude one end of the sliding rod 208, force the sliding rod 208 to slide and contract in the chute 206, compress the compression spring 209, and further drive the clamping block 210 to slide to extrude and fix the plugging ball 205, so that the sealing fixation of the plugging ball 205 to the central pipe 201 is enhanced;

meanwhile, the fixing tube 202 slides downwards, and is fixed through the support of the supporting telescopic rod 303, the rubber tube 302 is extruded, the rubber tube 302 is stretched to seal and fix the inner side of the sleeve, and then the supporting spring 304 is compressed in the downward sliding process of the rubber tube 302, so that the sliding tube 301 slides downwards, the clamping block 308 is driven to slide in the clamping groove 309, the rotating block 306 is further driven to rotate, the limiting block 307 is driven to support the lower part of the inner wall of the sleeve, the position of the packer in the sleeve is supported and fixed, and the sealing effect of the packer is also improved.

Finally, it should be noted that: although the present invention 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high sealed casing packer, includes top connecting pipe (1), its characterized in that: a sealing mechanism (2) is arranged on the inner side of the top connecting pipe (1);

the sealing mechanism (2) comprises a central pipe (201), a fixed pipe (202), a hydraulic rod (203), a flow limiting plate (204), a blocking ball (205), a sliding groove (206), a groove (207), a sliding rod (208), a compression spring (209) and a clamping block (210);

the inner side of the top connecting pipe (1) is embedded and connected with a central pipe (201), the outer side of the central pipe (201) is sleeved with a fixed pipe (202), the bottom end of the top connecting pipe (1) is connected with hydraulic rods (203) at equal intervals corresponding to the top end of the fixed pipe (202), a flow limiting plate (204) is embedded and connected on the inner side of the central tube (201), a blocking ball (205) is embedded and connected on the inner side of the flow limiting plate (204), the inner side of the fixed pipe (202) is symmetrically provided with sliding grooves (206), the inner side of the central pipe (201) is provided with a groove (207) corresponding to one side of the sliding grooves (206), a sliding rod (208) is embedded and slidably connected to the inner side of the groove (207), a compression spring (209) is sleeved at the position, corresponding to the inner side of the groove (207), of the outer side of the sliding rod (208), one end of the sliding rod (208) is connected with a clamping block (210) at a position corresponding to the inner side of the central tube (201).

2. The high-sealing casing packer as claimed in claim 1, wherein the fixed pipe (202) is slidably sleeved outside the central pipe (201), one end of the hydraulic rod (203) is fixedly connected with the top end of the fixed pipe (202), the restrictor plate (204) is connected with the blocking ball (205) in a clamping manner, the other end of the sliding rod (208) is slidably connected inside the sliding groove (206), one end of the compression spring (209) is embedded inside the groove (207), and the bottom end of the compression spring (209) is fixedly connected with the outside of the sliding rod (208).

3. A high seal casing packer according to claim 1, characterised in that outside the base pipe (201) is mounted an anchoring means (3);

the anchoring mechanism (3) comprises a sliding tube (301), a rubber cylinder (302), a supporting telescopic rod (303), a supporting spring (304), a bottom connecting tube (305), a rotating block (306), a limiting block (307), a clamping block (308) and a clamping groove (309);

a sliding pipe (301) is sleeved at the position of the outer side of the central pipe (201) corresponding to the lower part of the fixed pipe (202), a rubber cylinder (302) is sleeved at the position on the outer side of the central tube (201) corresponding to the upper part of the sliding tube (301), the bottom end of the fixed tube (202) is connected with supporting telescopic rods (303) at equal intervals at the position corresponding to the outer side of the rubber cylinder (302), a supporting spring (304) is sleeved at the position of the outer side of the central tube (201) corresponding to the inner side of the sliding tube (301), the bottom of the outer side of the central tube (201) is sleeved with a bottom connecting tube (305), rotating blocks (306) are hinged on the inner side of the bottom connecting tube (305) at equal intervals corresponding to the outer side of the central tube (201), one side of the rotating block (306) is hinged with a limiting block (307), the bottom end of the sliding tube (301) is equidistantly connected with clamping blocks (308), the inner side of the bottom connecting pipe (305) is provided with clamping grooves (309) at equal intervals corresponding to the bottom end positions of the clamping blocks (308).

4. The high-sealing casing packer as claimed in claim 3, wherein the sliding pipe (301) and the rubber sleeve (302) are both slidably sleeved outside the central pipe (201), one end of the supporting spring (304) is embedded and connected inside the sliding pipe (301), and the fixture block (308) is embedded and slidably connected inside the fixture groove (309).

5. The high-sealing casing packer as claimed in claim 3, wherein rubber rings (4) are symmetrically sleeved on the outer side of the bottom connecting pipe (305), fixed blocks (5) are embedded and connected on the outer side of the bottom connecting pipe (305) at equal intervals corresponding to positions between the two rubber rings (4), a limiting telescopic rod (6) is embedded and slidably connected on the inner side of each fixed block (5), a damping spring (7) is sleeved on the outer side of each limiting telescopic rod (6), and a pulley (8) is connected at one end of each limiting telescopic rod (6).

6. A high-sealing casing packer as claimed in claim 5, characterised in that one end of the damping spring (7) is embedded and connected inside the fixed block (5), and one end of the outer side of the pulley (8) is embedded and slidably connected inside the fixed block (5).