CN211370342U

CN211370342U - Mechanical telescopic blowout prevention pipe

Info

Publication number: CN211370342U
Application number: CN201922285917.1U
Authority: CN
Inventors: 朱祥英
Original assignee: Shandong Baorun Metal Materials Co ltd
Current assignee: Shandong Baorun Metal Materials Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-28
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a mechanical telescopic lubricator, wherein one end of the lubricator is provided with a connecting nut, and annular check rings are arranged on the inner side and the outer side of the connecting nut; a connecting sleeve is arranged on one side, away from the connecting nut, of the retainer ring, a barrel-shaped female joint is arranged on the inner side of the connecting sleeve, and a male joint is arranged on the inner side of the female joint; the outer ring of the outer side of the female joint is provided with outer side external connecting threads, and the outer ring of the inner side of the female joint is provided with inner side external connecting threads. An O-shaped ring is arranged between the inner side of the female connector and the male connector. The female joint is provided with a first outer inner sealing surface on the inner side and a second outer inner sealing surface on the outer side. And a thread structure is arranged between the outer side external connecting thread and the inner side external connecting thread on the female joint. The lubricator shortens the replacing time of the lubricator, further improves the working efficiency, and can meet the use length requirements of different lubricators.

Description

Mechanical telescopic blowout prevention pipe

Technical Field

The utility model belongs to the field of oil field production facility is made, concretely relates to flexible lubricator of mechanical type.

Background

The lubricator is a device used in oil field production, and is used for heightening a well mouth to improve the static pressure of a liquid column in a shaft. The workover fluid in the well bore is recovered to a designated container for treatment before overflowing, so as to prevent the ecological environment from being damaged, and particularly, the production platform of the marine oil field is more important. Lubricators are widely used in oilfield operations for connecting lubricator boxes, blowout preventers and the like, but the lubricators used at present are all of fixed length and have no application of telescopic lubricators.

The requirement that a well uses lubricators with two or even multiple lengths can be met during oil field operation, and if the lubricators cannot be adjusted in length, the demands with different lengths are required to be met, and only the lubricators with corresponding lengths are replaced. However, because the inner cavity of the lubricator contains the coiled tubing during operation, the coiled tubing must be lifted out when the lubricator is disassembled and replaced, so that a large amount of working hours are wasted, the abrasion of the coiled tubing is increased, the service life is shortened, and the working efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flexible lubricator of mechanical type, the shortcoming of prior art can be solved in the use of this equipment, has shortened the change time of lubricator, has improved work efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical telescopic lubricator is characterized in that a connecting nut is arranged at one end of the lubricator, and annular check rings are arranged on the inner side and the outer side of the connecting nut; a connecting sleeve is arranged on one side, away from the connecting nut, of the retainer ring, a barrel-shaped female joint is arranged on the inner side of the connecting sleeve, and a male joint is arranged on the inner side of the female joint; the outer ring of the outer side of the female joint is provided with outer side external connecting threads, and the outer ring of the inner side of the female joint is provided with inner side external connecting threads.

Preferably, an O-ring is arranged between the inner side of the female connector and the male connector.

Preferably, a first outer inner sealing surface is arranged on the inner side of the female joint, and a second outer inner sealing surface is arranged on the outer side of the female joint.

Preferably, a thread structure is arranged between the outer side external connecting thread and the inner side external connecting thread on the female joint.

Compared with the prior art, the beneficial effects of the utility model are that: the length of the lubricator can be adjusted through threaded connection according to actual use requirements, and the requirements of field operation are met; therefore, the length and the variety of the blowout prevention pipe are reduced on the stock, the replacement time is greatly shortened, and the working efficiency is improved. Meanwhile, the length of the thread is lengthened, so that the use length of the blowout prevention pipe can be adjusted at will, and the use range of the blowout prevention pipe is further enlarged.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a shortened state diagram of the blowout preventer of the present invention;

FIG. 2 is a diagram of the lubricator of the present invention in an extended state;

in the figure: 1. the connecting nut comprises a connecting nut body, a retainer ring, a connecting sleeve, a female joint, a male joint, a connecting sleeve, a connecting.

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. 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.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1-2, the present invention provides a technical solution: one end of the lubricator is provided with a connecting nut 1, and the inner side and the outer side of the connecting nut are provided with annular retainer rings 2; a connecting sleeve 3 is arranged on one side of the retainer ring, which is far away from the connecting nut, a barrel-shaped female joint 4 is arranged on the inner side of the connecting sleeve, and a male joint 5 is arranged on the inner side of the female joint; the outer ring of the outer side of the female joint is provided with outer connecting threads 41, and the outer ring of the inner side of the female joint is provided with inner connecting threads 44. An O-shaped ring 6 is arranged between the inner side of the female joint 4 and the male joint 5. A first outer inner sealing surface 42 is provided on the inside of the box 4 and a second outer inner sealing surface 43 is provided on the outside of the box. The outside external connection thread 41 and the inside external connection thread 44 on the box 4 are all provided with a thread structure therebetween.

When the lubricator needs to be shortened for use, the nut on the female joint 4 is twisted and sent to push the female joint 4 to the shortest, and the female joint is rotated and is tightly twisted and fixed by using the outer connecting nut 41. When the lubricator is required to be used in an extended mode, the outer connecting threads 41 on the female connector are unscrewed, the female connector 4 is extended, and the lubricator is fixed and used by using the inner outer connecting threads 44.

When the full threads are provided between the outside external connection threads 41 and the inside external connection threads 44, the length of the box 4 can be arbitrarily adjusted according to the required length.

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. A mechanical telescopic lubricator is characterized in that: one end of the lubricator is provided with a connecting nut (1), and the inner side and the outer side of the connecting nut are provided with annular check rings (2); a connecting sleeve (3) is arranged on one side, away from the connecting nut, of the retainer ring, a barrel-shaped female joint (4) is arranged on the inner side of the connecting sleeve, and a male joint (5) is arranged on the inner side of the female joint; and an outer side outer connecting thread (41) is arranged on the outer ring of the outer side of the female joint, and an inner side outer connecting thread (44) is arranged on the outer ring of the inner side of the female joint.

2. The mechanically telescoping lubricator of claim 1, wherein: an O-shaped ring (6) is arranged between the inner side of the female connector (4) and the male connector (5).

3. A mechanically telescopic lubricator according to claim 1 or claim 2, in which: a first outer inner sealing surface (42) is arranged on the inner side of the female joint (4), and a second outer inner sealing surface (43) is arranged on the outer side of the female joint.

4. A mechanically telescopic lubricator according to claim 1 or claim 2, in which: and a thread structure is arranged between the outer side outer connecting thread (41) and the inner side outer connecting thread (44) on the female joint (4).