CN210509095U

CN210509095U - Vibration well cementation device

Info

Publication number: CN210509095U
Application number: CN201921333030.9U
Authority: CN
Inventors: 李刚
Original assignee: Dongying Huicheng Petroleum Engineering Technology Co ltd
Current assignee: Dongying Huicheng Petroleum Engineering Technology Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-12
Anticipated expiration: 2029-08-16

Abstract

A vibration well cementing device, a starting device is arranged at the upper end of a vibrator, the upper part of the vibrator is inserted into a left eccentric hole of an upper overflowing sleeve, the vibrator is arranged in the lower part of an upper fixed joint along with the upper overflowing sleeve, the upper part of a connecting pipe is connected with the lower part of the upper fixed joint, so that the upper overflowing sleeve is limited in the lower part of the upper fixed joint, a left eccentric hole of a lower overflowing sleeve is sleeved at the lower part of the vibrator, the upper part of the lower fixed joint is connected with the lower part of the connecting pipe, so that the lower overflowing sleeve is seated on an inner shoulder of the lower fixed joint, the upper overflowing sleeve, the vibrator, the connecting pipe, the lower overflowing sleeve and the lower fixed joint are assembled into a whole, the upper fixed joint is connected at the lower part of a sleeve, a collision pressure rubber plug is put into the sleeve, a leather cup on the collision pressure rubber plug is contacted with the inner wall of the sleeve, when the pressure above the, an upper overflowing hole is arranged on the upper overflowing sleeve, and a lower overflowing hole is arranged on the lower overflowing sleeve.

Description

Vibration well cementation device

Technical Field

The utility model relates to a well completion equipment after the oil field well drilling is a vibration cementing device.

Background

After the oil field is drilled, a casing is put in, cement slurry is injected from the casing and returns upwards through an annular cavity between the casing and a well wall, so that the casing is fixedly connected to the well wall, the well wall is prevented from collapsing, interlayer fluid is prevented from flowing, the next production is facilitated, and the process is called well completion. The interval between the casing and the well wall is only a few centimeters, and the cement slurry has poor fluidity, so that the deep and narrow space is difficult to fill. If the cement slurry cannot fill the annular cavity between the casing and the borehole wall, there is a fixed quality problem. If the well cementation quality problem exists, the casing pipe is not fixed on the well wall, lateral force can be generated to damage the casing pipe, and the service life of the oil-water well is shortened; if the problem of well cementation quality exists, interlayer channeling can also occur, so that the oil-water well can not be normally produced.

Disclosure of Invention

The utility model aims at providing a vibration well cementation device overcomes the problem that the aforesaid exists, makes the grout fill annular cavity between sleeve pipe and the wall of a well, improves the well cementation quality of oil-water well, can normally produce after guaranteeing oil-water well completion, ensures that oil-water well has sufficient life.

The purpose of the utility model is realized like this: comprises a sleeve, a collision pressing rubber plug, an upper fixed joint, a starting device, an upper overflowing sleeve, a vibrator, a connecting pipe, a lower overflowing sleeve and a lower fixed joint, wherein the starting device is arranged at the upper end of the vibrator, the upper part of the vibrator is inserted into a left eccentric hole of the upper overflowing sleeve, the vibrator is arranged in the lower part of the upper fixed joint along with the upper overflowing sleeve, the upper part of the connecting pipe is connected with the lower part of the upper fixed joint, so that the upper overflowing sleeve is limited in the lower part of the upper fixed joint, the left eccentric hole of the lower overflowing sleeve is sleeved at the lower part of the vibrator, the upper part of the lower fixed joint is connected with the lower part of the connecting pipe, so that the lower overflowing sleeve is seated on an inner shoulder of the lower fixed joint, the upper overflowing sleeve, the vibrator, the connecting pipe, the lower overflowing sleeve and the lower fixed joint are assembled into a whole, the collision pressing rubber plug is put into the sleeve, when the pressure above the bumping rubber plug is higher than the pressure below the bumping rubber plug, the leather cup on the bumping rubber plug and the inner wall of the sleeve form one-way sealing, an upper overflowing hole is arranged on the upper overflowing sleeve, a lower overflowing hole is arranged on the lower overflowing sleeve, and liquid flow below the bumping rubber plug can flow downwards through the upper overflowing hole, the connecting pipe and the lower overflowing hole.

The utility model has the advantages that: the method is characterized in that the casing is internally pressed to enable the impacting rubber plug to downwards push cement slurry below the impacting rubber plug into an annular cavity between the casing and a well wall when well cementation is carried out, the impacting rubber plug is impacted after being in place, the starting device is triggered to enable the vibrator to rotate at a high speed to generate vibration, mechanical waves generated by the installation mode of the vibrator during the high-speed rotating vibration of the vibrator are transmitted to the far end along the casing string, the cement slurry between the casing string and the well wall generates vibration, air gaps in the cement slurry are escaped, the cement slurry is filled to fill gaps and fill the gaps, the gaps are densely and uniformly distributed, the purpose of improving the well cementation quality is achieved, normal production after the well completion of the oil-water.

Drawings

Fig. 1 is an assembly drawing of the present invention.

Detailed Description

An embodiment of the present invention will be described below with reference to fig. 1.

As shown in figure 1, the embodiment of the utility model comprises a sleeve 1, a collision pressing rubber plug 2, an upper fixed joint 3, a starting device 4, an upper overflowing sleeve 5, a vibrator 6, a connecting pipe 7, a lower overflowing sleeve 8 and a lower fixed joint 9, wherein the starting device 4 is arranged at the upper end of the vibrator 6, the upper part of the vibrator 6 is inserted into a left eccentric hole of the upper overflowing sleeve 5, the vibrator 6 is arranged in the lower part of the upper fixed joint 3 along with the upper overflowing sleeve 5, the upper part of the connecting pipe 7 is connected with the lower part of the upper fixed joint 3, so that the upper overflowing sleeve 5 is limited in the lower part of the upper fixed joint 3, the left eccentric hole of the lower overflowing sleeve 8 is sleeved at the lower part of the vibrator 6, the upper part of the lower fixed joint 9 is connected with the lower part of the connecting pipe 7, the lower overflowing sleeve 8 is seated on the inner shoulder of the lower fixed joint 9, the upper fixed joint 3, the upper overflowing sleeve 5, the vibrator 6, the lower fixed joint 9 is assembled into a whole, the upper fixed joint 3 is connected to the lower part of the sleeve 1, the collision pressure rubber plug 2 is put into the sleeve 1, a leather cup on the collision pressure rubber plug 2 is contacted with the inner wall of the sleeve 1, when the pressure above the collision pressure rubber plug 2 is higher than the pressure below the collision pressure rubber plug, the leather cup on the collision pressure rubber plug 2 and the inner wall of the sleeve 1 form one-way sealing, an upper overflowing hole 5-1 is arranged on the upper overflowing sleeve 5, a lower overflowing hole 8-1 is arranged on the lower overflowing sleeve 8, and liquid flow below the collision pressure rubber plug 2 can flow downwards through the upper overflowing hole 5-1, the connecting pipe 7 and the lower overflowing hole 8-1.

The utility model discloses in the bottom of casing string, in the pit shaft along with the sleeve pipe is gone down after the well drilling, beat into the prepared grout in ground to the sleeve pipe 1, the grout through last discharge orifice, the connecting pipe, lower discharge orifice downward flow, upwards return to the toroidal cavity between sleeve pipe 1 and the wall of a well again, the grout is beaten the back, will bump the pressure plug 2 and drop into in the sleeve pipe 1, beat the displacement liquid to the sleeve pipe 1 again, make the grout in the sleeve pipe 1 replace to the toroidal cavity between sleeve pipe 1 and the wall of a well, bump and can make vibrator 6 begin to work after pressing plug 2 and starting drive 4 contact, the mechanical wave that produces conveys to the distal end along the casing string, the grout between wave casing string and the wall of a well produces the vibrations, the power of vibrator 6 is the battery, the electric energy of battery can guarantee that vibrator 6 shakes about half an hour, air gap in the grout escapes when vibrator 6 shakes, so that the cement slurry fills the gap and fills the annular cavity between the casing 1 and the well wall, thereby ensuring the well cementation quality.

Claims

1. The utility model provides a vibration well cementation device, includes sleeve pipe (1), hits pressure plug (2), goes up fixed joint (3), starting drive (4), goes up overflow cover (5), vibrator (6), connecting pipe (7), overflow cover (8), lower fixed joint (9), characterized by: the starting device (4) is arranged at the upper end of the vibrator (6), the upper part of the vibrator (6) is inserted into the batch mounting hole of the upper overflowing sleeve (5), the vibrator (6) is mounted in the lower part of the upper fixed joint (3) along with the upper overflowing sleeve (5), the upper part of the connecting pipe (7) is connected with the lower part of the upper fixed joint (3) so that the upper overflowing sleeve (5) is limited in the lower part of the upper fixed joint (3), the mounting hole of the lower overflowing sleeve (8) is sleeved at the lower part of the vibrator (6), the upper part of the lower fixed joint (9) is connected with the lower part of the connecting pipe (7) so that the lower overflowing sleeve (8) is seated on the inner shoulder of the lower fixed joint (9), the upper fixed joint (3), the upper overflowing sleeve (5), the vibrator (6), the connecting pipe (7), the lower overflowing sleeve (8) and the lower fixed joint (9) are assembled into a whole, and then the upper fixed joint (3) is connected with the lower part of the sleeve (1, the collision pressing rubber plug (2) is thrown into the sleeve (1), a leather cup on the collision pressing rubber plug (2) is contacted with the inner wall of the sleeve (1), when the pressure above the collision pressing rubber plug (2) is higher than the pressure below the collision pressing rubber plug, the leather cup on the collision pressing rubber plug (2) and the inner wall of the sleeve (1) form one-way sealing, an upper overflowing sleeve (5) is provided with an upper overflowing hole (5-1), a lower overflowing hole (8-1) is arranged on a lower overflowing sleeve (8), and liquid flow below the collision pressing rubber plug (2) can flow downwards through the upper overflowing hole (5-1), the connecting pipe (7) and the lower overflowing hole (8-1).