CN218509466U

CN218509466U - Instrument structure with high-pressure seal

Info

Publication number: CN218509466U
Application number: CN202123113453.XU
Authority: CN
Inventors: 刘军; 王吉明; 李兵
Original assignee: Dongying Zhicheng Electromechanical Technology Development Co ltd
Current assignee: Dongying Zhicheng Electromechanical Technology Development Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2023-02-21
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses an instrument structure with high-pressure seal relates to oil logging instrument technical field. The utility model comprises an upper joint and a lower joint; the upper joint comprises a high-pressure sealing upper joint pressing cap, a first high-pressure sealing plug and a high-pressure sealing upper joint body, and the first high-pressure sealing plug is fixed inside the high-pressure sealing upper joint body by the high-pressure sealing upper joint pressing cap. The utility model discloses can prevent that the instrument from entering into other positions of instrument because of certain position instrument structure destruction, mud, effectively protect other positions of instrument, the instrument loss that causes when furthest reduces the instrument and breaks down is particularly suitable for the valuable instrument of work under the abominable operating mode such as high temperature, deep well, and simple structure does not change the length and the overall dimension of original instrument, and the installation is more convenient.

Description

Instrument structure with high-pressure seal

Technical Field

The utility model belongs to the technical field of oil logging instrument, especially, relate to an instrument structure with high-pressure seal.

Background

In recent years, with the increasing difficulty of the development of various oil fields in China, deep well ultra-deep wells are increasing, and about half of oil and gas resource reserves in China are distributed in deep layers. In the deep drilling process, the high-temperature and high-pressure working condition brings a serious challenge to a measurement while drilling instrument. In the while-drilling instrument, some precise sensors and probes are expensive and occupy most of the cost of the instrument, so that the precise sensors and probes are protected from being damaged when the instrument string is in a state, and the loss of the instrument can be greatly reduced.

And because the underground instrument works at high temperature and high pressure for a long time and simultaneously has erosion of mud to the instrument, the mechanical structure of a certain part of the instrument is inevitably damaged, and the mud enters the inside of the instrument to cause the scrapping of the whole string of instruments, thereby bringing huge loss to the drilling operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take high-pressure seal's instrument structure has solved because the instrument works under high temperature high pressure for a long time in the pit, has mud to the erosion of instrument again simultaneously, leads to the mechanical structure of a certain department of instrument to destroy easily, and mud gets into the inside whole cluster of condemned technical problem of instrument that causes of instrument.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

an instrument structure with high-pressure seal comprises an upper joint and a lower joint;

the upper joint comprises a high-pressure sealing upper joint pressing cap, a first high-pressure sealing plug and a high-pressure sealing upper joint body, and the first high-pressure sealing plug is fixed inside the high-pressure sealing upper joint body by the high-pressure sealing upper joint pressing cap;

the lower joint comprises a first probe tube sensor, an instrument damper, a high-pressure sealing lower joint pressing cap, a second high-pressure sealing plug and a high-pressure sealing lower joint, the first probe tube sensor is connected to the high-pressure sealing lower joint through the instrument damper, and the second high-pressure sealing plug is fixed inside the high-pressure sealing lower joint through the high-pressure sealing lower joint pressing cap.

Optionally, the end of the high-pressure sealing upper joint body is connected with an instrument pressure-resistant cylinder, and a second probe sensor is arranged in the instrument pressure-resistant cylinder.

Optionally, the high-pressure sealed lower joint is provided with a rubber centralizer.

Optionally, two opposite ends of the first high-pressure sealing plug and the second high-pressure sealing plug are both connected with a wire column, and the end of the wire column is connected with a wire.

Optionally, the first high-pressure sealing plug and the second high-pressure sealing plug are sleeved with O-shaped sealing rings.

Optionally, the vertical section of the O-shaped sealing ring is circular.

The embodiment of the utility model has the following beneficial effect:

the utility model discloses can prevent that the instrument from entering into other positions of instrument because of certain position instrument structure destruction, mud, effectively protect other positions of instrument, the instrument loss that causes when furthest reduces the instrument and breaks down is particularly suitable for the valuable instrument of work under the abominable operating mode such as high temperature, deep well, and simple structure does not change the length and the overall dimension of original instrument, and the installation is more convenient.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages simultaneously.

Drawings

The accompanying drawings, which form a part of the present application, 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 view of an upper joint structure according to an embodiment of the present invention;

fig. 2 is a schematic view of a lower joint structure according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating a connection between a lead and a lead post according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

the high-pressure sealing device comprises a high-pressure sealing upper joint pressing cap 1, a first high-pressure sealing plug 2, a high-pressure sealing upper joint body 3, an instrument pressure-resistant cylinder 4, a second probe sensor 5, a first probe sensor 6, an instrument shock absorber 7, a high-pressure sealing lower joint pressing cap 8, a second high-pressure sealing plug 9, a high-pressure sealing lower joint 10, a rubber centralizer 11, a lead column 12, an O-shaped sealing ring 13 and a lead 14.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Referring to fig. 1-3, in the present embodiment, an instrument structure with a high pressure seal is provided, which includes: an upper joint and a lower joint;

the upper joint comprises a high-pressure sealing upper joint pressing cap 1, a first high-pressure sealing plug 2 and a high-pressure sealing upper joint body 3, and the first high-pressure sealing plug 2 is fixed inside the high-pressure sealing upper joint body 3 by the high-pressure sealing upper joint pressing cap 1;

the lower joint comprises a first probe tube sensor 6, an instrument shock absorber 7, a high-pressure sealing lower joint pressing cap 8, a second high-pressure sealing plug 9 and a high-pressure sealing lower joint 10, the first probe tube sensor 6 is connected to the high-pressure sealing lower joint 10 through the instrument shock absorber 7, and the second high-pressure sealing plug 9 is fixed inside the high-pressure sealing lower joint 10 through the high-pressure sealing lower joint pressing cap 8.

3 end connection of high-pressure seal top connection body of this embodiment has an instrument compressive cylinder 4, the inside second probe sensor 5 that is equipped with of instrument compressive cylinder 4, rubber centralizer 11 is equipped with on the high-pressure seal lower clutch 10, first high pressure sealing plug 2, the relative both ends of second high pressure sealing plug 9 all are connected with wire post 12, wire post 12 end connection has wire 14, first high pressure sealing plug 2, all week sides of second high pressure sealing plug 9 are all overlapped and are equipped with O type sealing washer 13, O type sealing washer 13 erects the cross-section and is circular, be convenient for improve first high pressure sealing plug 2 through O type sealing washer 13, second high pressure sealing plug 9 is installed and is connected body 3 on the high-pressure seal, the stability of high-pressure seal lower clutch 10.

The instrument joints are connected in a power supply and communication mode through the conducting wires 14 and conducting wire columns 12 on two adjacent sides in the first high-pressure sealing plug 2 and the second high-pressure sealing plug 9 in a soldering mode, the instrument joints can be connected in a power supply and communication mode, and the conducting wires 14 on the conducting wire columns 12 on the outer sides, relative to the first high-pressure sealing plug 2 and the second high-pressure sealing plug 9, of the first high-pressure sealing plug 2 are used for being connected with other electrical appliances.

The application of one aspect of the embodiment is as follows: when the instrument is assembled, firstly, the lead 14 is cut out as required, the lead 14 is firmly welded with lead columns 12 at two ends of the high-pressure sealing plug 2, the heat-shrinkable tube is sleeved on the soldering tin, then the first high-pressure sealing plug 2 is sleeved with the O-shaped sealing ring 13 and then is installed into the upper joint body 3, the upper joint is pressed by the screw thread on the cap 1 and the high-pressure sealing plug 2 is firmly fixed in the upper joint body 3. The installation of the lower joint is the same process. Thus, the assembly of the high-pressure seal structure is completed. The instrument is assembled by connecting the wires 14 to the corresponding instrument structure.

The high-pressure sealing plugs are respectively added in the upper end connector and the lower end connector of the instrument, so that high-pressure mud is prevented from entering the instrument through the upper end or the lower end of the instrument by utilizing the bearing capacity of the high-pressure sealing plugs under the condition that the instrument leaks, and a sensor, a probe and other valuable instruments are protected. The structure with high-pressure seal can be added to a battery short section, a probe short section, a circuit short section, a gamma short section and the like which form the logging-while-drilling instrument, so that each part of the instrument becomes a relatively independent pressure-resistant unit, and once the structure of the instrument at a certain part is damaged, other parts of the instrument are protected to the maximum extent, so that the loss of the instrument is reduced.

Thereby the utility model discloses can prevent that the instrument from because of certain position instrument structure destruction, mud enters into other positions of instrument, effectively protects other positions of instrument, and the instrument loss that causes when furthest reduces the instrument and breaks down is particularly suitable for the valuable instrument of work under the abominable operating mode such as high temperature, deep well, and simple structure, does not change the length and the overall dimension of original instrument, and the installation is more convenient.

It should be noted that all the electric devices referred to in this application may be powered by a storage battery or an external power source.

The above embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims

1. An instrument structure with high pressure seal, comprising: an upper joint and a lower joint;

the upper joint comprises a high-pressure sealing upper joint pressing cap (1), a first high-pressure sealing plug (2) and a high-pressure sealing upper joint body (3), and the first high-pressure sealing plug (2) is fixed inside the high-pressure sealing upper joint body (3) by the high-pressure sealing upper joint pressing cap (1);

the lower joint comprises a first probe tube sensor (6), an instrument shock absorber (7), a high-pressure sealing lower joint pressing cap (8), a second high-pressure sealing plug (9) and a high-pressure sealing lower joint (10), the first probe tube sensor (6) is connected to the high-pressure sealing lower joint (10) through the instrument shock absorber (7), and the high-pressure sealing lower joint pressing cap (8) fixes the second high-pressure sealing plug (9) inside the high-pressure sealing lower joint (10).

2. The instrument structure with the high-pressure seal as claimed in claim 1, wherein the end of the high-pressure seal upper joint body (3) is connected with an instrument compression cylinder (4), and a second probe sensor (5) is arranged in the instrument compression cylinder (4).

3. An instrument structure with a high-pressure seal according to claim 1, characterized in that the high-pressure seal lower joint (10) is provided with a rubber centralizer (11).

4. The structure of an instrument with high pressure seal according to claim 1, characterized in that the first high pressure sealing plug (2) and the second high pressure sealing plug (9) are connected with wire posts (12) at two opposite ends, and the ends of the wire posts (12) are connected with wires (14).

5. The structure of an instrument with high-pressure seal according to any one of claims 1 or 4, characterized in that the first high-pressure sealing plug (2) and the second high-pressure sealing plug (9) are sleeved with O-shaped sealing rings (13) on the peripheral sides.

6. An instrument structure with high-pressure seal according to claim 5, characterized in that the O-ring (13) is circular in vertical section.