CN220593593U

CN220593593U - Cement bubble removing device

Info

Publication number: CN220593593U
Application number: CN202321998595.5U
Authority: CN
Inventors: 陈方涛
Original assignee: Shandong Lizhijie Petroleum Technology Service Co ltd
Current assignee: Shandong Lizhijie Petroleum Technology Service Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-03-15
Anticipated expiration: 2033-07-27

Abstract

The utility model belongs to the technical field of well cementation of oil wells, and particularly relates to a cement bubble removal device, which comprises a feeding component for connecting stirred cement to be filled into the device and further stirring, wherein a discharging component for removing bubbles and discharging the cement injected into the device is arranged above the feeding component, a driving component for driving the device to normally operate is arranged on the feeding component and the discharging component, and a suction pump for sucking air in the device is arranged above the discharging component. The utility model is convenient for driving the helical blade to rotate through the rotating shaft, and continuously presses the cement with the height exceeding the guide cone into the guide cone, so that the cement with the slow flow rate after being injected into the device is discharged in an accelerating way, thereby avoiding the process of eliminating bubbles in the cement from affecting the normal progress of the well cementation operation.

Description

Cement bubble removing device

Technical Field

The utility model belongs to the technical field of well cementation of oil wells, and particularly relates to a cement bubble removal device.

Background

Well cementing in petroleum engineering is a construction operation of running a casing into a well and injecting cement into an annular space between the wellbore and the casing. Bubbles inevitably appear in the well cementation cement and water stirring and homogenizing process used in the well cementation process, and if the bubbles cannot be effectively discharged or reduced, the bubbles can have adverse effects on the use effect and the service life of the well cementation well wall.

The chinese patent document with publication number CN218428970U discloses a cement bubble removing device for well cementation of oil well, which fixes parts such as a rotating rod with vibration effect, which is built in a sealing sleeve, at the end of a cement discharge pipe through a fixing mechanism capable of being tightly connected with a hard pipe at the end of the cement discharge pipe, thereby continuously vibrating cement filled through the discharge pipe so as to remove bubbles in the cement.

However, in the prior art, the way of eliminating cement bubbles can prevent cement from flowing out of the discharge pipe to a certain extent, so that the construction progress of well cementation operation is slowed down, and therefore, a cement bubble removing device is provided.

Disclosure of Invention

The utility model aims to provide a cement bubble removal device.

The technical scheme adopted by the utility model is as follows:

the cement bubble removing device comprises a feeding component for connecting stirred cement to be filled into the device and further stirring, wherein a discharging component for removing bubbles and discharging the cement injected into the device is arranged above the feeding component, a driving component for driving the device to normally operate is arranged on the feeding component and the discharging component, and a suction pump for sucking air in the device is arranged above the discharging component;

the discharge assembly includes a guide for guiding the flow direction of the cement, a guard for maintaining the sealing effect of the device and preventing the cement from entering the suction pump, and a discharge for maintaining the flow rate of the cement.

Preferably: the guide piece comprises a discharge cylinder fixedly connected above the feeding assembly, a guide cone cylinder is fixedly installed in the discharge cylinder, and a guide bent pipe is arranged between the discharge cylinder and the guide cone cylinder.

Preferably: the protection piece comprises a first separation frame fixedly connected above the discharge cylinder, a splash guard is fixedly installed on the first separation frame, a second separation frame is fixedly connected above the first separation frame, a filter plate is fixedly installed on the second separation frame, and a sealing cover is fixedly connected above the second separation frame.

Preferably: the discharging part comprises a second shaft seat fixedly installed on the sealing cover, a rotating shaft is movably connected in the second shaft seat, and a spiral blade is fixedly connected to the lower end of the rotating shaft.

Preferably: the sealing cover is provided with an exhaust port.

Preferably: the second shaft seat is rotationally connected with the rotating shaft.

Preferably: the diameter of the spiral blade gradually decreases from top to bottom.

The beneficial effects of the utility model are as follows: the flow direction of cement in the device is conveniently limited through the feeding component and the discharging component, so that the cement flows in a gradually overflowing rather than splashing way, and the increase of internal gas caused by splashing when the cement flows is avoided; the screw blade is convenient to drive through the pivot to rotate, and with the cement of highly crossing the guide cone section of thick bamboo in continuously impressing the guide cone section of thick bamboo, the cement that makes the velocity of flow slow down after pouring into this device discharges with higher speed to avoid eliminating the bubble in the cement this process influence the normal progress of well cementation operation.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic isometric view of a cement de-bubbling device according to the present utility model;

FIG. 2 is a schematic view of a feeding assembly of a cement bubble removal device according to the present utility model;

FIG. 3 is a schematic view of a discharge assembly of a cement bubble removal device according to the present utility model;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is a schematic diagram of the structure of the parts such as the first motor of the cement bubble removal device;

fig. 6 is a schematic structural view of parts such as a frame of the cement bubble removal device according to the present utility model.

The reference numerals are explained as follows:

1. a feed assembly; 101. a base; 102. a feed cylinder; 103. a first shaft seat; 104. a stirring shaft; 105. stirring paddles; 106. a discharge pipe; 107. a discharge valve; 2. a discharge assembly; 201. a discharge cylinder; 202. a first spacer; 203. a splash shield; 204. a second spacer; 205. a filter plate; 206. sealing cover; 207. a second axle seat; 208. a rotating shaft; 209. a helical blade; 210. a guide cone; 211. a material guiding bent pipe; 3. a drive assembly; 301. a first motor; 302. a first pulley; 303. a second pulley; 304. a belt; 305. a frame; 306. a second motor; 307. a coupling; 4. and a suction pump.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, 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. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further illustrated by the following examples in connection with the accompanying drawings.

As shown in fig. 1-6, a cement bubble removing device comprises a feeding component 1 for connecting stirred cement to be filled into the device and stirring the cement further, a discharging component 2 for removing bubbles and discharging the cement injected into the device is arranged above the feeding component 1, a driving component 3 for driving the device to normally operate is arranged on the feeding component 1 and the discharging component 2, and a suction pump 4 for sucking air in the device is arranged above the discharging component 2.

In this embodiment: the feeding assembly 1 comprises a base 101, a feeding barrel 102 is fixedly connected above the base 101, a first shaft seat 103 is fixedly installed below the feeding barrel 102, a stirring shaft 104 is movably connected in the first shaft seat 103, a stirring paddle 105 is fixedly connected to the upper end of the stirring shaft 104, a discharge pipe 106 is fixedly connected below the base 101, and a discharge valve 107 is fixedly connected to one end of the discharge pipe 106; the first shaft seat 103 is rotationally connected with the stirring shaft 104; the base 101 can effectively prevent toppling over when the device is operated as the bearing spare part of this device, and feed cylinder 102 can be with the cement access this device that the premix is accomplished, and when (mixing) shaft 104 rotated for first axle bed 103, the stirring rake 105 of installing in (mixing) shaft 104 upper end will continuously stir the cement of getting into this device by feed cylinder 102, and after this device uses to accomplish, can be after opening discharge valve 107, make the cement of piling up in the device in feed cylinder 102 bottom follow discharge pipe 106, discharge valve 107 outflow to avoid depositing the cement of feed cylinder 102 bottom to dry and tie in this device.

In this embodiment: the discharging assembly 2 comprises a guide part for guiding the flowing direction of cement, a protection part for keeping the sealing effect of the device and preventing the cement from entering the suction pump 4, and a discharging part for keeping the flowing speed of the cement, wherein the guide part comprises a discharging cylinder 201 fixedly connected above the feeding assembly 1, a guiding cone cylinder 210 is fixedly arranged in the discharging cylinder 201, a guiding elbow 211 is arranged between the discharging cylinder 201 and the guiding cone cylinder 210, the protection part comprises a first separation frame 202 fixedly connected above the discharging cylinder 201, a splash-proof plate 203 is fixedly arranged on the first separation frame 202, a second separation frame 204 is fixedly connected above the first separation frame 202, a filter plate 205 is fixedly arranged on the second separation frame 204, a sealing cover 206 is fixedly connected above the second separation frame 204, the discharging part comprises a second shaft seat 207 fixedly arranged on the sealing cover 206, a rotating shaft 208 is movably connected in the second shaft seat 207, and a helical blade 209 is fixedly connected to the lower end of the rotating shaft 208; the sealing cover 206 is provided with an exhaust port, the second shaft seat 207 is rotationally connected with the rotating shaft 208, and the diameter of the spiral blade 209 is gradually reduced from top to bottom; the discharging cylinder 201 and the sealing cover 206 can be matched with the feeding cylinder 102 to form a relatively airtight cylinder, so that cement injected into the feeding cylinder 102 overflows to the sealing cover 206 through the discharging cylinder 201, when the suction pump 4 works, the splash guard 203 arranged on the first separation frame 202 and the filter plate 205 arranged on the second separation frame 204 can prevent slurry, particles and other matters in cement from entering a cavity of the suction pump 4 to cause the suction pump 4 to work abnormally in the process of overflowing the cement, the guide cone 210 can limit the overflow height of the cement in the cylinder, and when the rotating shaft 208 rotates relative to the second shaft seat 207, the rotating shaft 208 drives the helical blades 209 to rotate, so that the helical blades 209 shear and stir the cement, and the cement with the height exceeding the guide cone 210 is continuously pressed into the guide cone 210, so that the cement entering the guide cone 210 is caused to leave the device along the guide elbow 211.

In this embodiment: the driving assembly 3 comprises a first motor 301 fixedly mounted on the base 101, the output end of the first motor 301 is fixedly connected with a first belt pulley 302, the lower end of the stirring shaft 104 is fixedly connected with a second belt pulley 303, a belt 304 is arranged between the first belt pulley 302 and the second belt pulley 303, a frame 305 is fixedly connected above the sealing cover 206, a second motor 306 is fixedly mounted on the frame 305, and a coupling 307 is arranged between the second motor 306 and the rotating shaft 208; after the first motor 301 works, the rotation of the output end of the first motor is transmitted to the stirring shaft 104 through the first belt pulley 302, the belt 304 and the second belt pulley 303, and after the second motor 306 mounted on the stand 305 works, the rotation of the output end of the second motor is transmitted to the rotating shaft 208 through the coupling 307.

Working principle: when the device is installed and used for completing the bubble removal of cement related to oil well cementation, a pipeline for filling cement into an oil well is connected with a discharge cylinder 201, and then prefabricated cement to be filled is led into a feed cylinder 102 through the pipeline, and a first motor 301, a second motor 306 and a suction pump 4 are all in working states; when cement is continuously injected into the device and overflows upwards, the internal bubbles of the device are gradually broken under the stirring and shearing actions of the stirring paddles 105 and the spiral blades 209, and the released gas is discharged out of the device under the suction action of the suction pump 4, so that the uniform bubble removal of the cement is completed; after the bubble-removed cement, the helical blade 209, which is continuously rotated after entering the pilot cone 210, is pressed down to the pilot elbow 211 and into the desired location along the pipe for cementing.

While the preferred embodiments of the present utility model have been described in detail with reference to the drawings, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims

1. A cement bubble removal device, characterized in that: the device comprises a feeding component (1) for connecting stirred cement to be filled into the device and further stirring, wherein a discharging component (2) for removing bubbles and discharging the cement filled into the device is arranged above the feeding component (1), a driving component (3) for driving the device to normally operate is arranged on the feeding component (1) and the discharging component (2), and a suction pump (4) for sucking air in the device is arranged above the discharging component (2);

the discharge assembly (2) comprises a guide for guiding the flow direction of the cement, a guard for maintaining the sealing effect of the device and preventing the cement from entering the suction pump (4), and a discharge for maintaining the flow speed of the cement.

2. A cement bubble removal apparatus as claimed in claim 1, wherein: the guide piece comprises a discharge cylinder (201) fixedly connected above the feeding assembly (1), a guide cone (210) is fixedly installed in the discharge cylinder (201), and a guide bent pipe (211) is arranged between the discharge cylinder (201) and the guide cone (210).

3. A cement bubble removal apparatus as claimed in claim 2, wherein: the protection piece comprises a first separation frame (202) fixedly connected above the discharge cylinder (201), a splash-proof plate (203) is fixedly installed on the first separation frame (202), a second separation frame (204) is fixedly connected above the first separation frame (202), a filter plate (205) is fixedly installed on the second separation frame (204), and a sealing cover (206) is fixedly connected above the second separation frame (204).

4. A cement bubble removal apparatus as claimed in claim 3, wherein: the discharging part comprises a second shaft seat (207) fixedly installed on the sealing cover (206), a rotating shaft (208) is movably connected in the second shaft seat (207), and a spiral blade (209) is fixedly connected to the lower end of the rotating shaft (208).

5. A cement bubble removal apparatus as claimed in claim 3, wherein: the sealing cover (206) is provided with an exhaust port.

6. A cement bubble removal apparatus as defined in claim 4, wherein: the second shaft seat (207) is rotatably connected with the rotating shaft (208).

7. A cement bubble removal apparatus as defined in claim 4, wherein: the diameter of the helical blade (209) gradually decreases from top to bottom.