CN210343255U

CN210343255U - Oil well lining pipe with anti-corrosion connector

Info

Publication number: CN210343255U
Application number: CN201921022801.2U
Authority: CN
Inventors: 牛昆; 焦飞; 孙志勇; 侯仁喜; 张慧
Original assignee: Shengli Oilfield Wuhua Pipe Co ltd
Current assignee: SHENGLI OIL FIELD WUHUA INDUSTRIAL DEVELOPMENT Co.,Ltd.
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-17
Anticipated expiration: 2029-07-03

Abstract

The utility model provides an oil well is with interior bushing pipe with anticorrosion connector, includes the body, the periphery fixed mounting swivel nut of body, and the periphery of swivel nut is equipped with the external screw thread, and the peripheral screw thread installation spiro of swivel nut, the periphery suit cross-section of body are isosceles trapezoid's seal cover, and the inner wall of seal cover and the periphery contact cooperation of body, the seal cover is elastic material, swivel nut and seal cover fixed connection. The utility model discloses during with other tube coupling, the leakproofness is good, prevents to take place to leak to crude oil erodees the gap and causes the corruption, and the installation only needs alone to accomplish, can overcome and need many people complex defect in the traditional structure, can reduce 50% human resource input at least.

Description

Oil well lining pipe with anti-corrosion connector

Technical Field

The utility model belongs to the technical field of the oil well pipeline, specifically speaking is a welt pipe for oil well with anticorrosion connector.

Background

Along with the continuous development of oil field oil extraction technology, the application of lining oil pipes is more and more extensive, especially the lining pipe made of ultra-high molecular weight polyethylene has good characteristics of corrosion resistance, scale prevention, self lubrication, low temperature resistance, shock resistance and the like, when the lining pipe joint is connected, extremely high sealing performance is needed to avoid leakage, CN201821556387.9 discloses a valve component, which utilizes the elasticity of a spring to realize sealing, but when the valve component is installed, because the elasticity exists all the time, at least two workers are needed to be installed in a matching way, one worker applies force to overcome the elasticity, the other worker screws a bolt and a nut, the problem of high labor cost is caused, and more physical power of the workers can be consumed in the installation process.

SUMMERY OF THE UTILITY MODEL

The utility model provides an interior bushing pipe is used to oil well with anticorrosion connector for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

the utility model provides an oil well is with interior bushing pipe with anticorrosion connector, includes the body, the periphery fixed mounting swivel nut of body, and the periphery of swivel nut is equipped with the external screw thread, and the peripheral screw thread installation spiro of swivel nut, the periphery suit cross-section of body are isosceles trapezoid's seal cover, and the inner wall of seal cover and the periphery contact cooperation of body, the seal cover is elastic material, swivel nut and seal cover fixed connection.

According to the lining pipe with the anti-corrosion connector for the oil well, one side of the threaded sleeve is fixedly connected with one ends of the cross rods which are uniformly distributed, and the other ends of the cross rods are fixedly connected with one side of the sealing sleeve.

According to the lining pipe with the anti-corrosion connector for the oil well, the limiting block collinear with the central line is fixedly installed in the pipe body, a plurality of through inclined holes are uniformly formed in one side of the limiting block, one ends of a plurality of V-shaped rods are fixedly connected to the outer side of the inner wall of the sealing sleeve, the V-shaped rods correspond to the inclined holes one to one, and the other ends of the V-shaped rods respectively penetrate through the corresponding inclined holes at the same time and are in sliding fit with the inclined holes.

According to the lining pipe with the anti-corrosion connector for the oil well, the periphery of the limiting block is fixedly connected with the inner ring of the bearing, the outer ring of the bearing is fixedly connected with one end of the connecting rods, the other end of each connecting rod is fixedly connected with the inner wall of the pipe body, and the distance between every two adjacent connecting rods is equal.

The lining pipe with the anti-corrosion connector for the oil well is characterized in that a flange plate is fixedly arranged on the periphery of the pipe body.

According to the lining pipe with the anti-corrosion connector for the oil well, the other side of the spiral ring is provided with the plurality of groups of blind holes, and the number of each group of blind holes is two.

The utility model has the advantages that: during installation, a worker enables the pipe body to be aligned to the connecting pipe, the connecting end of the sealing sleeve and the connecting pipe is simultaneously inserted into the connecting pipe, then the pipe body is roughly connected with the connecting pipe through the flange, namely, the flange bolt is not screwed down in the initial state, then the worker manually rotates the spiral ring, on the premise of flange connection, the pipe body cannot rotate, the spiral sleeve cannot rotate as well, the spiral ring has the movement in the length direction of the pipe body in a thread matching mode, the spiral ring moves towards the direction of the connecting pipe, the sealing sleeve can be screwed into the connecting pipe until external force cannot rotate the spiral ring, at the moment, the sealing sleeve is simultaneously in close contact with the periphery of the pipe body and the inner wall of the connecting pipe, and then the flange bolt is screwed down. The utility model discloses during with other tube coupling, the leakproofness is good, prevents to take place to leak to crude oil erodees the gap and causes the corruption, and the installation only needs alone to accomplish, can overcome and need many people complex defect in the traditional structure, can reduce 50% human resource input at least.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; fig. 2 is a view in the direction a of fig. 1.

Detailed Description

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

The utility model provides a bushing pipe for oil well with anticorrosion connector, as shown in the figure, including body 1, body 1's periphery fixed mounting swivel nut 2, the periphery of swivel nut 2 is equipped with the external screw thread, and the peripheral screw thread installation spiro 3 of swivel nut 2, the periphery suit cross-section of body 1 are isosceles trapezoid's seal cover 4, the inner wall of seal cover 4 and the periphery contact cooperation of body 1, seal cover 4 is elastic material, swivel nut 2 and seal cover 4 fixed connection. During installation, the workman makes body 1 aim at the connecting pipe, and insert simultaneously in the connecting pipe with the link of seal cover 4 and body 1, then pass through the flange thick joint with body 1 and connecting pipe, initial condition does not need to screw up flange bolt promptly, then the workman manually rotates spiro 3, under flange joint's prerequisite, body 1 can't rotate, spiro 2 is unable to rotate equally, screw-thread fit's mode makes spiro 3 have the removal of 1 length direction of body, make spiro 3 move towards the connecting pipe direction, can make seal cover 4 precession in the connecting pipe, until external force can't rotate spiro 3, this moment seal cover 4 respectively simultaneously with the periphery of body 1, the inner wall in close contact with of connecting pipe, then screw up flange bolt, make body 1 and connecting pipe zonulae occludens. The utility model discloses during with other tube coupling, the leakproofness is good, prevents to take place to leak to crude oil erodees the gap and causes the corruption, and the installation only needs alone to accomplish, can overcome and need many people complex defect in the traditional structure, can reduce 50% human resource input at least.

Specifically, as shown in fig. 1, one side of the threaded sleeve 2 according to this embodiment is fixedly connected to one ends of a plurality of uniformly distributed cross bars 5, and the other ends of the cross bars 5 are both fixedly connected to one side of the sealing sleeve 4. This structure can make has the interval between swivel nut 2 and the seal cover 4 to the position of swivel nut 2 influences the packing up of seal cover 4.

Specifically, as shown in fig. 1, in the pipe body 1 described in this embodiment, a limiting block 6 having a collinear central line is fixedly installed, one side of the limiting block 6 is uniformly provided with a plurality of through inclined holes 7, the outer side of the inner wall of the sealing sleeve 4 is fixedly connected with one ends of a plurality of V-shaped rods 8, the V-shaped rods 8 are in one-to-one correspondence with the inclined holes 7, and the other ends of the V-shaped rods 8 respectively and simultaneously penetrate through the corresponding inclined holes 7 and are in sliding fit with the same. When the seal cover 4 deviates from the 1 direction motion of body, the motion of inclined hole 7 direction is followed simultaneously to V type pole 8, because the motion direction of V type pole 8 is towards seal cover 4 to one side, therefore, V type pole 8 can apply a power for seal cover 4, make seal cover 4's right-hand member turn up, the inner wall of the periphery laminating connecting pipe of more being favorable to seal cover 4, thereby further prevent that the junction from revealing, and can reduce seal cover 4 and the area of contact of defeated material of biography, reduce the resistance, reduce the probability that the turbulent flow appears.

Further, as shown in fig. 1, the periphery of the limiting block 6 is fixedly connected with the inner ring of the bearing, the outer ring of the bearing is fixedly connected with one ends of the connecting rods 9, the other ends of the connecting rods 9 are fixedly connected with the inner wall of the pipe body 1, and the distance between every two adjacent connecting rods 9 is equal. This structure is guaranteeing that stopper 6 has under the prerequisite of sufficient stability, reduces the occupation of the space in body 1 to cause too big resistance to crude oil transportation.

Further, as shown in fig. 1, a mounting flange 10 is fixed to the outer periphery of the pipe body 1 according to the present embodiment. This structure can be convenient for body 1 and other pipelines or valve body to be connected.

Furthermore, as shown in fig. 2, the other side of the spiral ring 3 of the present embodiment is provided with a plurality of sets of blind holes 11, and the number of each set of blind holes 11 is two. The workman inserts in blind hole 11 through the instrument, can the extension moment to more convenient rotation spiral ring 3, the concrete structure of instrument is for having two Y type poles of inserting the post, inserts the post and is located the branch pole tip of Y type pole respectively and perpendicular with it, inserts the post and can insert simultaneously respectively to a set of blind hole 11 that corresponds in, the rotation spiral ring 3 that the workman held the mobile jib of Y type pole can be very light.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a bushing pipe for oil well with anticorrosion connector which characterized in that: the pipe comprises a pipe body (1), wherein a threaded sleeve (2) is fixedly arranged on the periphery of the pipe body (1), external threads are arranged on the periphery of the threaded sleeve (2), a spiral ring (3) is arranged on the periphery of the threaded sleeve (2), a sealing sleeve (4) with an isosceles trapezoid-shaped section is sleeved on the periphery of the pipe body (1), the inner wall of the sealing sleeve (4) is in contact fit with the periphery of the pipe body (1), the sealing sleeve (4) is made of elastic materials, and the threaded sleeve (2) is fixedly connected with the sealing sleeve (4).

2. The lining pipe for an oil well with an anticorrosion connector as set forth in claim 1, wherein: one side of the threaded sleeve (2) is fixedly connected with one ends of a plurality of uniformly distributed cross rods (5), and the other ends of the cross rods (5) are fixedly connected with one side of the sealing sleeve (4).

3. An oil well liner with corrosion-resistant joints according to claim 1 or 2, wherein: the pipe body (1) internal fixation install with the collinear stopper (6) of central line, several penetrating inclined holes (7) are evenly seted up to one side of stopper (6), the inner wall outside fixed connection several V type pole (8) of seal cover (4) one end, V type pole (8) and inclined holes (7) one-to-one, the other end of V type pole (8) pass and sliding fit with it in corresponding inclined holes (7) respectively simultaneously.

4. An oil well liner with corrosion-resistant joint according to claim 3, wherein: the periphery of stopper (6) fixed connection bearing the inner circle, the one end of the outer lane fixed connection several connecting rod (9) of bearing, the other end of connecting rod (9) all with the inner wall fixed connection of body (1), the interval between every two adjacent connecting rod (9) equals.

5. An oil well liner pipe with corrosion-resistant joints according to claim 1, 2 or 4, wherein: the periphery of the pipe body (1) is fixedly provided with a flange plate (10).

6. An oil well liner pipe with corrosion-resistant joints according to claim 1, 2 or 4, wherein: the other side of the spiral ring (3) is provided with a plurality of groups of blind holes (11), and the number of each group of blind holes (11) is two.