CN216240477U

CN216240477U - Core-passing flexible short joint for horizontal well logging

Info

Publication number: CN216240477U
Application number: CN202122889823.2U
Authority: CN
Inventors: 程伊博
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-08
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a core-passing flexible short section for horizontal well logging, which comprises a plurality of connected pipe bodies, wherein one end of each pipe body is fixedly connected with a spherical head, and a spherical groove matched with the spherical head is formed in the other end of each pipe body; fixed cover is equipped with the lag on the body, install a plurality of gasbag rings on the inner wall of lag, gasbag ring cover is established on the body, install a plurality of telescopic links on the surface of body, it is a plurality of the extension end of telescopic link all with the inner wall fixed connection of lag, the cover is equipped with the spring on the telescopic link, the both ends of spring respectively with the inner wall of lag, the outer fixed surface connection of body. By arranging the protective sleeve, the air bag ring, the telescopic rod and the spring, when the lateral load is applied, the lateral load can not be directly applied to the pipe body, so that the influence of the lateral load on the pipe body is reduced, the influence on a logging instrument is further reduced, the practical service life of the logging instrument is prolonged, and the logging reliability is improved.

Description

Core-passing flexible short joint for horizontal well logging

Technical Field

The utility model relates to the technical field of horizontal well logging, in particular to a core-passing flexible short joint for horizontal well logging.

Background

The petroleum logging instrument generally comprises a ground logging system and an underground instrument, the most key link for connecting the two parts is a logging cable, and the cable is used for placing the logging instrument underground or lifting the logging instrument to log, uploading signals collected by the underground instrument and downloading instructions sent by the ground system.

In the current well logging technology, the whole technology is divided into vertical well logging and horizontal well logging, wherein the vertical well logging means that a vertical well is drilled on a stratum surface for well logging, and the horizontal well logging means that a horizontal section is drilled on a vertical well surface as the name suggests. At present, horizontal wells are increased, so that the logging technology must be suitable for horizontal logging, and logging instruments and horizontal wells are required. How to provide a flexible nipple joint to make things convenient for logging instrument to turn to and get into the horizontal well in the vertical well, can effectually keep out side direction load simultaneously, protect logging instrument is the technical problem that relevant field technical staff awaits a urgent need to solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a core-passing flexible short joint for horizontal well logging, which aims to solve at least one technical problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a core-passing flexible short section for horizontal well logging comprises a plurality of connected pipe bodies, wherein one ends of the pipe bodies are fixedly connected with spherical heads, spherical grooves matched with the spherical heads are formed in the other ends of the pipe bodies, and the pipe bodies and the spherical heads are provided with through grooves; fixed cover is equipped with the lag on the body, install a plurality of gasbag rings on the inner wall of lag, it is a plurality of gasbag ring all overlaps and establishes on the body, install a plurality of telescopic links on the surface of body, it is a plurality of the extension end of telescopic link all with the inner wall fixed connection of lag, the cover is equipped with the spring on the telescopic link, the both ends of spring respectively with the inner wall of lag, the outer fixed surface connection of body.

Preferably, two adjacent pipe bodies are rotatably connected through a spherical head and a spherical groove; and an extension tube is arranged between every two adjacent tube bodies.

Preferably, be located all fixedly connected with connectors on the body of leftmost side and being located the rightmost side, be provided with the cavity in the connector, two all be connected with sealed head on the connector.

Preferably, be provided with the internal thread on the inner wall of connector, one of sealed head serves fixedly connected with and the threaded rod of internal thread matching, sealed head passes through threaded rod, internal thread and is connected with the connector.

Preferably, the sealing head is fixedly connected with a rotating rod on one side away from the threaded rod, and the rotating rod is made of stainless steel.

Preferably, the connecting head is fixedly sleeved with a protective sleeve, and the protective sleeve is made of rubber.

Preferably, the pipe body is made of stainless steel, and the spherical head is made of stainless steel.

The utility model has the beneficial effects that:

1. by arranging the protective sleeve, the air bag ring, the telescopic rod and the spring, when the lateral load is applied, the lateral load can not be directly applied to the pipe body, so that the influence of the lateral load on the pipe body is reduced, the influence on a logging instrument is further reduced, the practical service life of the logging instrument is prolonged, and the logging reliability is improved.

2. The spherical head and the spherical groove are arranged, so that the adjacent pipe bodies are rotatably connected, the whole device can be bent to a certain degree, the problem that the instruments need to be bent is solved, and the well logging instrument can test in a highly-deviated well.

Drawings

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

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of portion B of FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of the tube and the ball head according to the present invention;

reference numerals: 1. a pipe body; 2. a spherical head; 3. a spherical groove; 4. a through groove; 5. a telescopic pipe; 6. a connector; 7. a cavity; 8. an internal thread; 9. a sealing head; 10. a threaded rod; 11. a protective sleeve; 12. a balloon ring; 13. a telescopic rod; 14. a spring; 15. a protective sleeve; 16. rotating the rod.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-4, a core-passing flexible short section for horizontal well logging comprises a plurality of connected pipe bodies 1, wherein one end of each pipe body 1 is fixedly connected with a spherical head 2, a spherical groove 3 matched with the spherical head 2 is formed in the other end of each pipe body 1, and through grooves 4 are formed in the pipe bodies 1 and the spherical heads 2; fixed cover is equipped with lag 11 on body 1, installs a plurality of gasbag rings 12 on lag 11's the inner wall, and a plurality of gasbag rings 12 all overlap and establish on body 1, install a plurality of telescopic links 13 on body 1's the surface, a plurality of telescopic links 13 extend the end all with lag 11's inner wall fixed connection, the cover is equipped with spring 14 on telescopic link 13, spring 14's both ends respectively with lag 11's inner wall, body 1's outer fixed surface is connected.

In this embodiment, specifically, two adjacent pipe bodies 1 are rotatably connected through a spherical head 2 and a spherical groove 3; an extension tube 5 is arranged between two adjacent tube bodies 1; through the rotary connection between the adjacent pipe bodies 1, the whole device can form certain bending, so that the device is beneficial to the test of an instrument in a highly-deviated well; through setting up flexible pipe 5, under the circumstances that does not influence body 1 turn, can avoid debris to enter into the clearance of two adjacent body 1 to make spherical head 2 can be normal rotate in spherical groove 3.

In this embodiment, specifically, the pipe body 1 located at the leftmost side and the rightmost side is fixedly connected with the connectors 6, the connectors 6 are internally provided with the cavities 7, and the two connectors 6 are connected with the sealing heads 9; the connector 6 is arranged, so that the device is convenient to connect with a test instrument; through setting up sealed head 9, when this device was idle, sealed head 9 can shutoff connector 6, avoids dust debris to enter into in the connector 6.

In this embodiment, specifically, an internal thread 8 is provided on the inner wall of the connector 6, a threaded rod 10 matched with the internal thread 8 is fixedly connected to one end of the sealing head 9, and the sealing head 9 is connected to the connector 6 through the threaded rod 10 and the internal thread 8; when this device was idle, through cavity 7 with threaded rod 10 alignment connector 6, then rotate sealed head 9, drive threaded rod 10 rotatory, and then make threaded rod 10 enter into gradually in the connector 6 to make sealed head 9 be connected with connector 6 and carry out the shutoff to connector 6.

In this embodiment, specifically, a rotating rod 16 is fixedly connected to one side of the sealing head 9 away from the threaded rod 10, and the rotating rod 16 is made of stainless steel; by providing a swivelling lever 16, the sealing head 9 and the threaded rod 10 can be swiveled more easily.

In this embodiment, specifically, the connector 6 is fixedly sleeved with a protective sleeve 15, and the protective sleeve 15 is made of rubber; the connecting head 6 can be protected by arranging a rubber protective sleeve 15.

In this embodiment, specifically, the tube body 1 is made of stainless steel, and the spherical head 2 is made of stainless steel.

The working principle is as follows: this device makes to rotate between the adjacent body 1 and connects through setting up spherical head 2, spherical groove 3, makes the whole of this device can form certain bending to do benefit to the logging instrument and test in highly deviated well.

Through setting up lag 11, gasbag ring 12, telescopic link 13, spring 14, when receiving side direction load, lag 11 can transmit gasbag and spring 14 for the load, and then make gasbag and spring 14 by extrusion deformation, gasbag after the deformation and compressed spring 14's resilience force all can continuously promote lag 11, make the load not directly transmit for body 1, thereby can reduce the influence of side direction load to body 1, and then reduce the influence to logging instrument, prolong logging instrument's practical life, improve the reliability of logging. Through setting up sealed head 9, when this device was idle, can block up connector 6, avoid dust debris to enter into in the connector 6.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a horizontal well logging is with passing flexible nipple joint of core, includes a plurality of body (1) that link to each other, its characterized in that: one end of the pipe body (1) is fixedly connected with a spherical head (2), a spherical groove (3) matched with the spherical head (2) is formed in the other end of the pipe body (1), and through grooves (4) are formed in the pipe body (1) and the spherical head (2); fixed cover is equipped with lag (11) on body (1), install a plurality of gasbag rings (12) on the inner wall of lag (11), it is a plurality of gasbag ring (12) all overlap and establish on body (1), install a plurality of telescopic links (13) on the surface of body (1), it is a plurality of the extension end of telescopic link (13) all with the inner wall fixed connection of lag (11), the cover is equipped with spring (14) on telescopic link (13), the both ends of spring (14) respectively with the inner wall of lag (11), the surface fixed connection of body (1).

2. The cross-core flexible short joint for horizontal well logging according to claim 1, characterized in that: the two adjacent pipe bodies (1) are rotationally connected through a spherical head (2) and a spherical groove (3); an extension tube (5) is arranged between two adjacent tube bodies (1).

3. The cross-core flexible short joint for horizontal well logging according to claim 2, characterized in that: be located all fixedly connected with connector (6) on body (1) on leftmost side and being located the rightmost side, be provided with cavity (7), two in connector (6) all be connected with sealed head (9) on connector (6).

4. The cross-core flexible sub for horizontal well logging according to claim 3, characterized in that: be provided with internal thread (8) on the inner wall of connector (6), one of sealed head (9) serves threaded rod (10) that fixedly connected with and internal thread (8) match, sealed head (9) are connected with connector (6) through threaded rod (10), internal thread (8).

5. The cross-core flexible sub for horizontal well logging according to claim 4, characterized in that: fixedly connected with dwang (16) on one side of threaded rod (10) is kept away from to sealed head (9), dwang (16) are stainless steel.

6. The cross-core flexible sub for horizontal well logging according to claim 3, characterized in that: fixed cover is equipped with protective sheath (15) on connector (6), protective sheath (15) are the rubber material.

7. The cross-core flexible short joint for horizontal well logging according to claim 1, characterized in that: the pipe body (1) is made of stainless steel, and the spherical head (2) is made of stainless steel.