CN210460610U

CN210460610U - Gas well restrictor

Info

Publication number: CN210460610U
Application number: CN201921081099.7U
Authority: CN
Inventors: 陈刚
Original assignee: Wuhan Lier Mechanical And Electrical Equipment Co Ltd
Current assignee: Wuhan Lier Mechanical And Electrical Equipment Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-05
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses a gas well restrictor, which comprises a shell and an inner core, wherein the inside of the shell is connected with the outside of the inner core, the main body of the shell is a shell, a fishing neck and a fixed slip are respectively arranged on the top down of the shell, a valve cover interface is fixedly connected below the shell, the outer surface of the valve cover interface is in threaded matching connection with a throttling nozzle mounting sleeve, a central tube is arranged inside the shell, a sealing seat is fixedly sleeved at the middle part of the central tube, the outer side of the sealing seat is fixedly connected with the inner wall of the shell, an adjusting ring is arranged below the sealing seat, a valve is movably sleeved at the lower end of the central, and the upper surface of the valve and the lower surface of the adjusting ring are fixedly connected with a pressure spring, the upper end of the valve, the lower end of the adjusting ring and the inner wall of the shell form a water containing space, the outer edge of the valve is fixedly connected with an upward retaining ring, and a central tube below the valve is provided with a through hole. The gas well restrictor can conveniently replace the restrictor and conveniently adjust the size of the restrictor in the using process.

Description

Gas well restrictor

Technical Field

The utility model relates to a flow controller technical field specifically is a gas well flow controller.

Background

The gas well throttler is used for controlling blowout prevention pressure and flow, in the using process of the gas well throttler, a throttling nozzle can be corroded after being used for a long time, the aperture of the throttling nozzle is enlarged, the throttling nozzle needs to be replaced to restore the normal throttling effect, the throttling nozzles of most gas well throttlers are inconvenient to replace, in addition, the size of the throttling nozzle needs to be adjusted in time according to the size of underground pressure, and the convenience of the majority of gas well throttlers in the process is also deficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas well flow controller has reached the effect of convenient regulation orifice size.

In order to achieve the above object, the utility model provides a following technical scheme: a gas well choke comprising an outer casing and an inner core, the interior of the outer casing being connected to the exterior of the inner core.

The casing comprises casing, salvage neck, fixed slips, valve cover interface, throttle mouth installation cover and direction head, the main part of casing is the casing, casing top-down is provided with salvage neck and fixed slips respectively, salvage neck and fixed slips be integrated into one piece, just it is outside on the casing to salvage the equal threaded connection of neck and fixed slips, casing below fixedly connected with valve cover interface, the surface screw thread accordant connection of valve cover interface has the throttle mouth installation cover, the bottom of valve cover interface is connected with the direction head.

The inner core comprises center tube, seal receptacle, adjustable ring, pressure spring, valve, fender ring, appearance water space and through-hole, the inside of shell is provided with the center tube, the fixed seal receptacle that has cup jointed in the middle part of center tube, the outside of seal receptacle and the inner wall fixed connection of shell, the below of seal receptacle is provided with the adjustable ring, the valve has been cup jointed in the lower extreme activity of center tube, just the upper surface of valve and the lower fixed surface of adjustable ring are connected with the pressure spring, the lower extreme of valve, adjustable ring and the inner wall of shell form and hold the water space, the ascending fender ring of outer fringe fixed connection of valve, the through-hole has been seted up on the center tube of valve below.

Preferably, an orifice with a larger aperture is formed above the throttle tip mounting sleeve, and an orifice with a smaller aperture is formed below the throttle tip mounting sleeve.

Preferably, the throttle nozzle mounting sleeve is connected to the outside of the housing through a screw thread, and a throttle hole with a corresponding hole diameter is formed in a position of the housing corresponding to the throttle nozzle mounting sleeve.

Preferably, the inner side of the pressure spring is movably connected with the outer part of the central tube.

Preferably, a certain distance exists between the lower part of the baffle ring and the inner wall of the shell, and the upper part of the baffle ring is in close contact with the inner wall of the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the gas well throttler achieves the purpose of conveniently replacing the throttle nozzle by arranging the throttle nozzle mounting sleeve. In the using process of the gas well restrictor, the throttling nozzle can be corroded after being used for a long time, so that the aperture of the throttling nozzle is enlarged, and the normal throttling effect can be recovered by replacing the throttling nozzle. The throttling nozzle mounting sleeve of the gas well throttleer is in threaded connection with the outer side of the shell of the gas well throttleer, and only the throttling nozzle mounting sleeve needs to be replaced after the diameter of a throttling pore passage on the shell is increased, and the threaded connection mode enables the replacement to be very convenient.

(2) The gas well throttler achieves the purpose of adjusting the size of the throttling nozzle by arranging the valve and the retaining ring. According to the size of the underground pressure, the size of the throttling nozzle needs to be adjusted in time, when the medium pressure of the central pipe is low, the valve is jacked to be low in height and can be pushed through the small-aperture air flow nozzle below, when the medium pressure of the central pipe is high, the valve is jacked to be high in height, the small-aperture throttling nozzle and the large-aperture throttling nozzle are both utilized, and the convenient adjustment of the size of the throttling nozzle is achieved.

Drawings

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

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

fig. 3 is a schematic view of the structure of the bottom surface of the valve of the present invention.

In the figure: the device comprises an outer shell 1, a shell 101, a fishing neck 102, a fixing slip 103, a valve cover interface 104, a throttling nozzle mounting sleeve 105, a guide head 106, an inner core 2, a central pipe 201, a sealing seat 202, an adjusting ring 203, a pressure spring 204, a valve 205, a retaining ring 206, a water containing space 207 and a through hole 208.

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. 1-3, the present invention provides a technical solution: a gas well restrictor comprises an outer shell 1 and an inner core 2, wherein the inner part of the outer shell 1 is connected with the outer part of the inner core 2.

The casing 1 comprises a casing 101, a fishing neck 102, a fixing slip 103, a valve cover interface 104, a throttle nozzle mounting sleeve 105 and a guide head 106, the casing 1 is mainly composed of the casing 101, the casing 101 is respectively provided with the fishing neck 102 and the fixing slip 103 from top to bottom, the fishing neck 102 and the fixing slip 103 are integrally formed, the fishing neck 102 and the fixing slip 103 are both in threaded connection with the outer part of the upper end of the casing 101, the fishing neck 102 is used for matching with a fishing tool and is convenient to fish the choke or fish the choke, the fixing slip 103 is used for being fixed underground, the valve cover interface 104 is fixedly connected below the casing 101, the outer surface of the valve cover interface 104 is in threaded connection with the throttle nozzle mounting sleeve 105, a throttle hole with a larger aperture is formed above the throttle nozzle mounting sleeve 105, a throttle hole with a smaller aperture is formed below the throttle nozzle mounting sleeve 105, and the throttle nozzle mounting sleeve 105 is in threaded connection with the outer part of the, in addition, the part of the shell 101 corresponding to the throttling nozzle mounting sleeve 105 is provided with a throttling hole with a corresponding hole diameter, and in the using process of the gas well throttling device, the throttling nozzle can be corroded after being used for a long time, so that the hole diameter of the throttling nozzle is enlarged, and the throttling nozzle needs to be replaced to restore the normal throttling effect. The throttling nozzle mounting sleeve 105 of the gas well throttling device is in threaded connection with the outer side of the shell 101 of the gas well throttling device, the throttling nozzle mounting sleeve 105 only needs to be replaced after the diameter of a throttling pore passage on the shell 101 is increased, and the threaded connection mode enables the replacement to be very convenient. A guide head 106 is attached to the bottom end of the valve cover interface 104.

The inner core 2 consists of a central tube 201, a seal seat 202, an adjusting ring 203, a pressure spring 204, a valve 205, a baffle ring 206, a water containing space 207 and a through hole 208, the central tube 201 is arranged in the shell 1, the seal seat 202 is fixedly sleeved in the middle of the central tube 201, the outer side of the seal seat 202 is fixedly connected with the inner wall of the shell 1, the adjusting ring 203 is arranged below the seal seat 202, the valve 205 is movably sleeved at the lower end of the central tube 201, the pressure spring 204 is fixedly connected with the upper surface of the valve 205 and the lower surface of the adjusting ring 203, the inner side of the pressure spring 204 is movably connected with the outer part of the central tube 201, the upper end of the valve 205, the lower end of the adjusting ring 203 and the inner wall of the shell 1 form the water containing space 207, the upward baffle ring 206 is fixedly connected with the outer edge of the valve 205, a certain distance exists between the lower part of the baffle ring 206 and the inner wall of the shell, the size of the throttling nozzle needs to be adjusted in time, when the medium pressure of the central pipe 201 is low, the valve 205 is jacked to be low in height and can be pushed through the small-aperture air flow nozzle below, when the medium pressure of the central pipe 201 is high, the valve 205 is jacked to be high in height, the small-aperture throttling nozzle and the large throttling nozzle are both utilized, and the convenient adjustment of the size of the throttling nozzle is achieved. A through hole 208 is formed in the center tube 201 below the valve 205 and used for allowing a medium to flow through and jacking up the valve 205.

When the valve is used, a medium passes through the central tube 201 and enters between the valve 205 and the valve cover interface 104 through the through hole 208, the valve 205 is gradually jacked up, the pressure spring 204 is compressed, and when the valve 205 is further jacked up, the medium enters the water containing space 207 and then flows out through the throttling hole. When the medium pressure of the central pipe 201 is low, the valve 205 is jacked to be low in height, and then the small-aperture air flow nozzle is arranged below the valve 205, when the medium pressure of the central pipe 201 is high, the jacked valve 205 is high in height, and then the small-aperture and large-aperture throttle nozzles are all utilized, so that the convenient adjustment of the size of the throttle nozzles is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 gas well choke comprising an outer casing (1) and an inner core (2), characterized in that: the inside of the outer shell (1) is connected with the outside of the inner core (2);

the fishing device comprises a shell (1), a fishing neck (102), a fixed slip (103), a valve cover interface (104), a throttling nozzle mounting sleeve (105) and a guide head (106), wherein the shell (1) is mainly composed of the shell (101), the shell (101) is respectively provided with the fishing neck (102) and the fixed slip (103) from top to bottom, the fishing neck (102) and the fixed slip (103) are integrally formed, the fishing neck (102) and the fixed slip (103) are both in threaded connection with the outer portion of the upper end of the shell (101), the valve cover interface (104) is fixedly connected below the shell (101), the outer surface of the valve cover interface (104) is in threaded connection with the throttling nozzle mounting sleeve (105), and the bottom end of the valve cover interface (104) is connected with the guide head (106);

the inner core (2) consists of a central tube (201), a sealing seat (202), an adjusting ring (203), a pressure spring (204), a valve (205), a retaining ring (206), a water containing space (207) and a through hole (208), the central tube (201) is arranged in the shell (1), the sealing seat (202) is fixedly sleeved in the middle of the central tube (201), the outer side of the sealing seat (202) is fixedly connected with the inner wall of the shell (1), the adjusting ring (203) is arranged below the sealing seat (202), the valve (205) is movably sleeved at the lower end of the central tube (201), the pressure spring (204) is fixedly connected to the upper surface of the valve (205) and the lower surface of the adjusting ring (203), the water containing space (207) is formed by the upper end of the valve (205), the lower end of the adjusting ring (203) and the inner wall of the shell (1), and the upward retaining ring (206) is fixedly connected to the outer edge of the valve (205), and a through hole (208) is formed in the central pipe (201) below the valve (205).

2. A gas well choke as claimed in claim 1, characterized by: the throttling nozzle is characterized in that a throttling hole with a larger aperture is formed above the throttling nozzle mounting sleeve (105), and a throttling hole with a smaller aperture is formed below the throttling nozzle mounting sleeve (105).

3. A gas well choke as claimed in claim 1, characterized by: the throttling nozzle mounting sleeve (105) is connected to the outside of the shell (101) through threads, and throttling holes with corresponding hole diameters are formed in the shell (101) corresponding to the throttling nozzle mounting sleeve (105).

4. A gas well choke as claimed in claim 1, characterized by: the inner side of the pressure spring (204) is movably connected with the outer part of the central tube (201).

5. A gas well choke as claimed in claim 1, characterized by: the lower part of the baffle ring (206) has a certain distance with the inner wall of the shell (101), and the upper part of the baffle ring (206) is in close contact with the inner wall of the shell (101).