CN214659996U

CN214659996U - Nano heat-insulating anti-corrosion oil well casing

Info

Publication number: CN214659996U
Application number: CN202120705279.9U
Authority: CN
Inventors: 倪箐华; 倪生辉
Original assignee: Dalian Huihua New Material Co ltd
Current assignee: Dalian Huihua New Material Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-09
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a nanometer heat preservation anticorrosive oil well casing, including a plurality of connecting pipes, the one end of connecting pipe is extended there is first arch, the connecting pipe is kept away from first bellied one end is provided with the lantern ring. The utility model discloses in, when two connecting pipes are connected, can align the first protruding of a connecting pipe and the second arch of another connecting pipe, then change the connection that the lantern ring realized two connecting pipes, the setting of the lantern ring makes two connecting pipes unnecessarily rotate whole connecting pipe when connecting, only need rotate the lantern ring can, make the connecting pipe installation become simple, the both ends of connecting pipe are provided with the fixing base of band-pass hole, connect between two adjacent connecting pipes and accomplish the back, pass the fixing base between two connecting pipes with the bolt, then screw through the nut, the setting of bolt not only can prevent that the connecting pipe from taking place to rotate and can also increase junction bending resistance ability.

Description

Nano heat-insulating anti-corrosion oil well casing

Technical Field

The utility model relates to an oil well casing technical field especially relates to a nanometer heat preservation anticorrosive oil well casing.

Background

The petroleum casing pipe is mainly used for supporting the well wall in the drilling process and after well completion so as to ensure the normal operation of the whole oil well after the drilling process and the well completion. The petroleum casing pipe is a life line for maintaining the operation of an oil well, and due to different geological conditions, the underground stress state is complex, and the tensile force, the pressure, the bending force and the torsion force are comprehensively acted on the pipe body, so that higher requirements are provided for the quality of the casing pipe. Once the oil casing itself is damaged for some reason, it may result in a reduction in the production of the entire well, or even rejection. The oil casing among the prior art models singly, and with regard to a common pipe, the one end inner wall of pipe is opened threadedly, and the screw thread has been seted up in the other end outside of pipe, and two the same pipes pass through threaded connection and are in the same place, because the pipe is generally longer and the quality is big, when two pipes are connected, need rotate whole pipe and waste time and energy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, the nano heat-insulating anti-corrosion oil well casing is provided.

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

the utility model provides a nanometer heat preservation anticorrosion oil well casing, includes a plurality of connecting pipes, the one end of connecting pipe is extended there is first arch, the connecting pipe is kept away from first bellied one end is provided with the lantern ring, lantern ring one end is extended there is the second arch, the connecting pipe is kept away from first bellied one end is seted up flutedly, the second arch is located in the recess and with the recess rotates the connection.

As a further description of the above technical solution:

the outer side of the first protrusion is provided with threads, and the inner wall of the second protrusion is provided with threads.

As a further description of the above technical solution:

a plurality of strip-shaped grooves are uniformly distributed on the outer side of the lantern ring.

As a further description of the above technical solution:

at least four fixing seats are uniformly distributed at the two ends of the connecting pipe in an annular mode, and through holes are formed in the fixing seats.

As a further description of the above technical solution:

and two adjacent connecting pipes are fixedly connected through bolts and nuts.

As a further description of the above technical solution:

the outer side of the connecting pipe is coated with an anticorrosive material.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model is provided with connecting pipes, a first bulge, a lantern ring, a fixed seat, a groove, a second bulge, a bolt and a nut structure, wherein the outer side of the first bulge is provided with screw threads, the inner side of the second bulge is provided with screw threads, when two connecting pipes are connected, the first bulge of one connecting pipe can be aligned with the second bulge of the other connecting pipe, then the lantern ring is rotated to realize the connection of the two connecting pipes, the lantern ring is arranged to ensure that the whole connecting pipe does not need to be rotated when the two connecting pipes are connected, only the lantern ring needs to be rotated, the connecting pipes are simply installed, the two ends of each connecting pipe are provided with the fixing seats with the through holes, after the connection between two adjacent connecting pipes is finished, the bolts penetrate through the fixing seats between the two connecting pipes, then through the nut screw, the setting of bolt not only can prevent that the connecting pipe from taking place to rotate and can also increase the anti-bending ability of junction.

Drawings

Fig. 1 is a schematic view illustrating a joint structure of a connecting pipe according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating a first view structure of a connection pipe according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a second view structure of a connecting pipe according to an embodiment of the present invention;

fig. 4 shows a schematic structural diagram of a collar provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a connecting pipe; 2. a first protrusion; 3. a collar; 4. a fixed seat; 5. a groove; 6. a second protrusion; 7. a bolt; 8. and a nut.

Detailed Description

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

Referring to fig. 1-4, the present invention provides a technical solution: a nanometer heat-insulating anticorrosion oil well casing comprises a plurality of connecting pipes 1, wherein one end of each connecting pipe 1 is extended with a first bulge 2, one end of each connecting pipe 1, which is far away from the first bulge 2, is provided with a lantern ring 3, one end of each lantern ring 3 is extended with a second bulge 6, one end of each connecting pipe 1, which is far away from the first bulge 2, is provided with a groove 5, the second bulge 6 is positioned in the groove 5 and is rotatably connected with the groove 5, compared with the traditional casing, the outer side of each first bulge 2 is provided with a thread, the inner wall of each second bulge 6 is provided with a thread, one novel end is provided with a rotatable lantern ring 3, when two connecting pipes 1 are connected, the first bulge 2 of one connecting pipe 1 can be aligned with the second bulge 6 of the other connecting pipe 1, then the rotatable lantern ring 3 is rotated, the first bulge 2 is in spiral connection with the second bulge 6, and the lantern ring 3 is continuously rotated, the first protrusion 2 is continuously screwed into the second protrusion 6, and finally the connection of the two connecting pipes 1 is realized.

Specifically, as shown in fig. 4, a plurality of bar grooves are uniformly distributed on the outer side of the sleeve ring 3, and are annularly distributed on the outer side of the sleeve ring 3, so that the friction force on the outer side of the sleeve ring 3 can be increased, the sleeve ring 3 is convenient to rotate, and the connection between the two connecting pipes 1 is easier.

Specifically, as shown in fig. 3, connecting pipe 1's both ends all annular evenly distributed have four at least fixing bases 4, the through-hole has been seted up to fixing base 4's inside, through bolt 7 and nut 8 fixed connection between two adjacent connecting pipes 1, the outside coating of connecting pipe 1 has anticorrosive material, pass bolt 7 fixing base 4 on two connecting pipes 1 of end to end, then screw up bolt 7 through nut 8, bolt 7's setting not only can prevent that connecting pipe 1 from taking place to rotate and can also strengthen the bending resistance performance of connecting pipe 1 junction.

The working principle is as follows: during the use, when connecting two connecting pipes 1, can align the first arch 2 of a connecting pipe 1 and the protruding 6 of second of another connecting pipe 1, then rotate and change lantern ring 3, screwed connection between first arch 2 and the protruding 6 of second, along with the continuous rotation of the lantern ring 3, first arch 2 constantly precession the protruding 6 insides of second, after the connection of two connecting pipes 1 is accomplished, pass fixing base 4 on two connecting pipes 1 of end to end with bolt 7, then screw up bolt 7 through nut 8, bolt 7's setting not only can prevent that connecting pipe 1 from taking place to rotate and can also strengthen the bending resistance performance of connecting pipe 1 junction.

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 utility model provides a nanometer heat preservation anticorrosion oil well casing, includes a plurality of connecting pipes, its characterized in that, the one end of connecting pipe is extended there is first arch, the connecting pipe is kept away from first bellied one end is provided with the lantern ring, lantern ring one end is extended there is the second arch, the connecting pipe is kept away from first bellied one end is seted up flutedly, the second arch is located in the recess and with the recess rotates the connection.

2. The nano heat-insulating corrosion-resistant oil well casing pipe as claimed in claim 1, wherein the outer side of the first protrusion is threaded, and the inner wall of the second protrusion is threaded.

3. The nano heat-insulating corrosion-resistant oil well casing pipe as claimed in claim 1, wherein a plurality of strip-shaped grooves are uniformly distributed on the outer side of the lantern ring.

4. The nano heat-insulating corrosion-resistant oil well casing pipe as claimed in claim 1, wherein at least four fixing seats are uniformly distributed on both ends of the connecting pipe in an annular shape, and through holes are formed in the fixing seats.

5. The nano heat-insulating corrosion-resistant oil well casing pipe as claimed in claim 1, wherein two adjacent connecting pipes are fixedly connected through bolts and nuts.

6. The nano-insulating and corrosion-resistant oil well casing as claimed in claim 1, wherein the outside of the connecting pipe is coated with a corrosion-resistant material.