CN211448634U

CN211448634U - Replaceable perforation for composite perforator

Info

Publication number: CN211448634U
Application number: CN201921782232.1U
Authority: CN
Inventors: 王译舸; 李斌; 张文杰
Original assignee: Shaanxi Sanfeng Petroleum Technology Co ltd
Current assignee: Shaanxi Sanfeng Petroleum Technology Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-09-08
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a compound perforation is with removable perforation, including outer body and interior body, interior body slides and cup joints the inside at outer body, the interior bottom of outer body is seted up flutedly, the interior bottom fixedly connected with elasticity spring of recess, elasticity spring's the other end and interior body fixed connection, the beneficial effects of the utility model are that: the utility model relates to a compound perforation is with removable perforation simple structure, high durability and convenient use sets up the interior body of a rotatable regulation through the inside at outer body, carries out fastening connection through sliding connection at inside spacing slider and the internal thread sleeve of spacing spout between interior body and the outer body, when needs are changed the perforation, need not to change compound perforator, only need to dismantle the internal thread sleeve, it can to press down the rotation again to internal body for it is convenient quick, labour saving and time saving to change the perforation.

Description

Replaceable perforation for composite perforator

Technical Field

The utility model relates to a compound perforator technical field specifically is a compound perforator is with removable perforation.

Background

The composite perforator is a perforating tool used on oil wells of oil fields. The sizes of the jet holes in the existing composite perforator are fixed, and the composite perforator only can be replaced according to the model of the composite perforator when the composite perforator needs to jet out the perforations with different sizes, so that the size of the jet holes is replaced, great troubles are caused when the perforation is replaced, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound perforation is with removable perforation to solve the jet orifice size on the current compound perforation ware and be fixed unchangeable, jet out the perforation of equidimension not in needs, only can change the model of compound perforation ware, thereby reach and change the size of jet orifice, make the trouble very when changing the perforation, the problem that wastes time and energy.

In order to achieve the above object, the utility model provides a following technical scheme: a replaceable perforation for a composite perforator comprises an outer tube body and an inner tube body, wherein the inner tube body is sleeved inside the outer tube body in a sliding mode, a groove is formed in the inner bottom of the outer tube body, an elastic spring is fixedly connected to the inner bottom of the groove, the other end of the elastic spring is fixedly connected with the inner tube body, a plurality of limiting sliders are fixedly connected to the outer side wall of the bottom of the inner tube body at equal intervals, a plurality of first limiting sliding grooves and second limiting sliding grooves are formed in the inner tube wall of the bottom of the outer tube body corresponding to the limiting sliders, the first limiting sliding grooves and the second limiting sliding grooves are matched with the limiting sliders, a plurality of first outer perforations and second outer perforations are formed in the outer side wall of the outer tube body at equal intervals, the first outer perforations are arranged above the second outer perforations, a plurality of first inner perforations and second inner perforations are formed in the outer side wall of the inner tube body at equal intervals, and the first inner perforation is arranged above the second inner perforation.

Preferably, the outer tube wall at the top of the outer tube body is provided with a first thread groove, the outer tube wall at one end of the inner tube body, which extends out of the outer tube body, is provided with a second thread groove, the tube walls of the outer tube body and the inner tube body are sleeved with an internal thread sleeve, and the internal thread sleeve is in threaded connection with the outer tube wall of the outer tube body and the outer tube wall of the inner tube body.

Preferably, the first limiting sliding groove and the second limiting sliding groove are communicated with each other, and an included angle between the first limiting sliding groove and the second limiting sliding groove is ninety degrees.

Preferably, the length of the first limiting sliding groove is equal to the distance between the bottom end of the inner pipe body and the bottom of the outer pipe body.

Preferably, the length of the second limiting sliding groove is equal to the distance between the second inner shooting holes.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a compound perforation is with removable perforation simple structure, high durability and convenient use sets up the interior body of a rotatable regulation through the inside at outer body, carries out fastening connection through sliding connection at inside spacing slider and the internal thread sleeve of spacing spout between interior body and the outer body, when needs are changed the perforation, need not to change compound perforator, only need to dismantle the internal thread sleeve, it can to press down the rotation again to internal body for it is convenient quick, labour saving and time saving to change the perforation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the middle and outer tubes of the present invention;

fig. 4 is a schematic view of the internal structure of the inner tube body according to the present invention;

fig. 5 is a schematic structural view of the middle internal thread sleeve of the present invention.

In the figure: 1. an outer tubular body; 2. an inner tube body; 3. a first thread groove; 4. a second thread groove; 5. an internally threaded sleeve; 6. a groove; 7. an elastic spring; 8. a limiting slide block; 9. a first limiting chute; 10. a second limiting chute; 11. a first outer perforation; 12. a second outer perforation; 13. a first inner perforation; 14. and a second inner perforation.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a replaceable perforation hole for a composite perforating device comprises an outer tube body 1 and an inner tube body 2, wherein the inner tube body 2 is sleeved in the outer tube body 1 in a sliding mode, a groove 6 is formed in the inner bottom of the outer tube body 1, an elastic spring 7 is fixedly connected to the inner bottom of the groove 6, the other end of the elastic spring 7 is fixedly connected with the inner tube body 2, a plurality of limiting sliders 8 are fixedly connected to the outer side wall of the bottom of the inner tube body 2 at equal intervals, a plurality of first limiting chutes 9 and second limiting chutes 10 are formed in the inner tube wall of the bottom of the outer tube body 1 corresponding to the plurality of limiting sliders 8, the first limiting chutes 9 and the second limiting chutes 10 are both matched with the limiting sliders 8, a plurality of first outer perforation holes 11 and second outer perforation holes 12 are formed in the outer side wall of the outer tube body 1 at equal intervals, the first outer perforation holes 11 are arranged above the second outer perforation holes 12, a plurality of first inner perforation holes 13 and second inner perforation holes 14 are, and the first inner perforation 13 is disposed above the second inner perforation 14.

The outer pipe wall at the top of the outer pipe body 1 is provided with a first thread groove 3, the outer pipe wall at one end of the inner pipe body 2 extending out of the outer pipe body 1 is provided with a second thread groove 4, the pipe walls of the outer pipe body 1 and the inner pipe body 2 are sleeved with an internal thread sleeve 5, the internal thread sleeve 5 is in threaded connection with the outer pipe wall of the outer pipe body 1 and the outer pipe wall of the inner pipe body 2, the internal thread sleeve 5 in threaded connection with the outer pipe body 1 and the inner pipe body 2 can enable the connection between the outer pipe body 1 and the inner pipe body 2 to be more stable, the first limiting sliding groove 9 and the second limiting sliding groove 10 are communicated with each other, an included angle between the first limiting sliding groove 9 and the second limiting sliding groove 10 is ninety degrees, so that the limiting sliding block 8 can move in the first limiting sliding groove 9 and the second limiting sliding groove 10, the length of the first limiting sliding groove 9 is equal to the distance between the bottom end of the inner pipe body 2 and the, the first inner perforation 13 can coincide with the first outer perforation 11, and the length of the second limiting sliding chute 10 is equal to the distance between the plurality of second inner perforations 14, so that when the limiting sliding block 8 rotates to the tail end of the second limiting sliding chute 10, the second inner perforations 14 can just coincide with the second outer perforations 12.

Specifically, the diameter of the first outer perforation 11 is the same as that of the first inner perforation 13, the diameter of the second outer perforation 12 is the same as that of the second inner perforation 14, when the perforation needs to be replaced, the elastic force of the elastic spring 7 enables the first inner perforation 13 on the inner pipe body 2 to be coincided and communicated with the first outer perforation 11, the diameter of the perforation on the composite perforator is the diameter of the first inner perforation 13, when the perforation needs to be replaced, the lower inner thread sleeve 5 is disassembled, the inner pipe body 2 is pressed forcibly, the limiting slide block 8 on the inner pipe body 2 slides along the first limiting slide groove 9, when the limiting slide block 8 slides to the inner bottom end of the first limiting slide groove 9, the inner pipe body 2 is rotated anticlockwise, the limiting slide block 8 slides to the inner part of the second limiting slide groove 10 from the first limiting slide groove 9, when the limiting slide block 8 slides to the tail end of the second limiting slide groove 10, the second inner perforation 14 is coincided and communicated with the second outer perforation 12, the diameter of the perforation on the composite perforator is the diameter of the second inner perforation 14, the inner thread sleeve 5 is sleeved on the inner pipe body 2 and the outer pipe body 1 in a threaded manner, the perforation of the composite perforator is replaced, and time and labor are saved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The replaceable perforation for the composite perforator is characterized by comprising an outer pipe body (1) and an inner pipe body (2), wherein the inner pipe body (2) is sleeved inside the outer pipe body (1) in a sliding mode, a groove (6) is formed in the inner bottom of the outer pipe body (1), an elastic spring (7) is fixedly connected to the inner bottom of the groove (6), the other end of the elastic spring (7) is fixedly connected with the inner pipe body (2), a plurality of limiting sliding blocks (8) are fixedly connected to the outer side wall of the bottom of the inner pipe body (2) at equal intervals, a plurality of first limiting sliding grooves (9) and a plurality of second limiting sliding grooves (10) are formed in the inner wall of the bottom of the outer pipe body (1) corresponding to the plurality of limiting sliding blocks (8), the first limiting sliding grooves (9) and the second limiting sliding grooves (10) are both matched with the limiting sliding blocks (8), and a plurality of first outer perforation (11) and a plurality of second perforation are formed at equal intervals on the outer side wall of the outer The outer wall of the inner tube body (2) is provided with a plurality of first inner perforations (13) and second inner perforations (14) at equal intervals, and the first inner perforations (13) are arranged above the second inner perforations (14).

2. The interchangeable perforation for a composite perforator of claim 1 wherein: the pipe joint is characterized in that a first thread groove (3) is formed in the outer pipe wall at the top of the outer pipe body (1), a second thread groove (4) is formed in the outer pipe wall, extending out of one end of the outer pipe body (1), at the top of the inner pipe body (2), an internal thread sleeve (5) is sleeved on the pipe walls of the outer pipe body (1) and the inner pipe body (2), and the internal thread sleeve (5) is in threaded connection with the outer pipe wall of the outer pipe body (1) and the outer pipe wall of the inner pipe body (2).

3. The interchangeable perforation for a composite perforator of claim 1 wherein: the first limiting sliding groove (9) and the second limiting sliding groove (10) are communicated with each other, and an included angle between the first limiting sliding groove (9) and the second limiting sliding groove (10) is ninety degrees.

4. The interchangeable perforation for a composite perforator of claim 1 wherein: the length of the first limiting sliding groove (9) is equal to the distance between the bottom end of the inner pipe body (2) and the bottom of the outer pipe body (1).

5. The interchangeable perforation for a composite perforator of claim 1 wherein: the length of the second limiting sliding groove (10) is equal to the distance between the second inner perforating holes (14).