CN214233586U

CN214233586U - Compound acid mixing device for plugging removal of oil-water well in ultra-low permeability oil field

Info

Publication number: CN214233586U
Application number: CN202023111929.1U
Authority: CN
Inventors: 袁海滨
Original assignee: Lanzhou Kaihong Zhongyuan Petroleum Technology Co ltd
Current assignee: Lanzhou Kaihong Zhongyuan Petroleum Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-21
Anticipated expiration: 2030-12-22

Abstract

The utility model belongs to the technical field of the mixed technique of compound acid and specifically relates to a stifled composite acid mixing arrangement of using is separated to hyposmosis oil field oil-water well, including the blending tank, swing joint has the pivot in the blending tank, fixedly connected with stirring fan blade in the pivot, the inboard top fixedly connected with of blending tank adds the charging box, it has the rectangular channel to open the bottom one end of charging box, the baffle has been placed to the below of rectangular channel, one side fixedly connected with movable rod of baffle, the bottom fixedly connected with lantern ring of charging box, extend away and fixedly connected with limiting plate in the lantern ring is followed to the one end of movable rod, the cover is equipped with the spring on the movable rod, open one side of blending tank has the sliding tray. The rotating speed of the rotating ring in the device is the same, so that the blanking amount is the same at each time, the accuracy of the proportion amount is guaranteed, the feeding rate is adjusted by adjusting the opening and closing times of the rectangular groove, the feeding rate can be effectively adjusted, and the proportion ratio is conveniently adjusted.

Description

Compound acid mixing device for plugging removal of oil-water well in ultra-low permeability oil field

Technical Field

The utility model relates to a compound sour field of mixing especially relates to a stifled compound sour mixing arrangement of using is separated to hyposmosis oil field oil-water well.

Background

Oil field oil-water wells are the most basic facilities of oil fields. The safe production of the oil-water well is very important. The composite acid is an oil-water well production increasing technology developed aiming at the problems of inorganic blockage and serious water blockage in the near wellbore region and influencing the stratum seepage capability, can effectively remove the deposited blockage of stratum porosity, can effectively remove the water lock damage of the stratum, change the wettability of a reservoir stratum, simultaneously can improve the matrix permeability, improve the water absorption condition, reduce the water injection pressure, improve the injection validity period and achieve the purposes of increasing the production and the injection of the oil-water well.

In the actual production process of the composite acid, various production raw materials need to be proportioned and mixed, and in the actual proportioning and mixing process, the problem of uneven dosage and proportioning exists, the quantitative addition of the mixed raw materials in the mixing process is difficult, and the addition rate is difficult to adjust according to the actual requirement to change the proportioning ratio of the raw materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a composite acid mixing device for plugging removal of an ultra-low permeability oil-water well in an oil field.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the composite acid mixing device for blocking removal of the oil-water well in the ultra-low permeability oilfield comprises a mixing barrel, wherein the top of the mixing barrel is connected with a cover plate through a hinge, one side of the cover plate is connected with a connecting part, the interior of the mixing barrel is movably connected with a rotating shaft, the rotating shaft is fixedly connected with stirring fan blades, the top of the inner side of the mixing barrel is fixedly connected with a feeding box, one end of the bottom of the feeding box is provided with a rectangular groove, a baffle is placed below the rectangular groove, one side of the baffle is fixedly connected with a movable rod, the bottom of the feeding box is fixedly connected with a lantern ring, one end of the movable rod extends out of the lantern ring and is fixedly connected with a limiting plate, the movable rod is sleeved with a spring, one side of the mixing barrel is provided with a sliding groove, one end of the baffle extends out of the sliding groove, the width of the baffle is smaller than that of the sliding groove, one side of the mixing barrel is fixedly mounted with a motor, the transmission shaft fixed connection of motor is in the one end of pivot, the other end of pivot runs through one side of blending tank and extends away and be connected with the swivel becket through stop part, open the side of swivel becket has a plurality of connecting holes, a plurality of contact arms, every have been placed to one side of swivel becket the one end of contact arm extends away and threaded connection has the second nut from the connecting hole that corresponds respectively, the bottom fixedly connected with contact block of baffle one end, the side of contact arm contacts with one side of contact block when rotating.

Preferably, the connecting part comprises two connecting blocks, the two connecting blocks are respectively and fixedly connected to one side of the mixing barrel and one side of the cover plate, the two connecting blocks are in threaded connection through a screw rod, and one end of the screw rod is fixedly connected with a knob.

Preferably, the limiting part comprises a limiting block, the limiting block is fixedly connected to the side face of the rotating shaft, the rotating ring is sleeved on the rotating shaft, a limiting groove is formed in the inner side of the rotating ring, the limiting block is located in the limiting groove, a first nut is connected to one end of the rotating shaft in a threaded manner, a blocking ring is sleeved on the rotating shaft and is located between the rotating ring and the mixing barrel.

Preferably, a plurality of support columns of bottom fixedly connected with of mixing tank, every the equal fixedly connected with callus on the sole in bottom of support column, the bottom of callus on the sole is equipped with anti-skidding line.

Preferably, the side of the bottom of the contact block is an arc angle, and a rubber sleeve is sleeved at the end of the contact rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the rotation of swivel becket drives contact bar and contact piece contact, makes contact piece remove along the sliding tray at the in-process of contact, drives the baffle and removes, and the baffle shifts out behind the rectangular channel quantitative stirring raw materials and falls into the mixing drum inside from the rectangular channel, and after contact bar rotated contact piece below, the elastic action of spring made the baffle get back to the rectangular channel below and plugs up the rectangular channel, and the swivel becket rotational speed is the same, makes every blanking volume the same, guarantees the accuracy of proportion volume.

2. Through the interpolation or the reduction to contact bar installation quantity in a plurality of connecting holes, just can adjust the number of times that the rectangular channel opened and shut, adjust reinforced speed, can effectual regulation feeding rate, the convenient ratio of joining in marriage is adjusted.

Drawings

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

fig. 2 is a schematic front sectional view of the present invention;

fig. 3 is a schematic top view of the cross-sectional structure of the present invention;

fig. 4 is a schematic bottom sectional view of the present invention;

fig. 5 is an enlarged schematic view of a structure at a point a in fig. 1 according to the present invention;

fig. 6 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention;

fig. 7 is an enlarged schematic view of the structure at C in fig. 2 according to the present invention;

fig. 8 is an enlarged schematic view of the structure at D in fig. 4 according to the present invention;

in the figure: mixing barrel 1, cover plate 2, support column 3, foot pad 4, rotating shaft 5, rotating ring 6, feeding box 7, stirring fan blade 8, motor 9, rectangular groove 10, baffle 11, connecting block 12, screw 13, knob 14, limiting block 15, limiting groove 16, first nut 17, baffle ring 18, connecting hole 19, contact rod 20, second nut 21, sliding groove 22, contact block 23, movable rod 24, spring 25, lantern ring 26, limiting plate 27 and hinge 28.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1-8, the composite acid mixing device for blocking removal of the ultra-low permeability oil-water well in the oil field comprises a mixing barrel 1, a plurality of support columns 3 are fixedly connected to the bottom of the mixing barrel 1, a foot pad 4 is fixedly connected to the bottom of each support column 3, anti-skid lines are arranged at the bottom of each foot pad 4, a cover plate 2 is connected to the top of the mixing barrel 1 through a hinge 28, one side of the cover plate 2 is connected with a connecting part, the connecting part comprises two connecting blocks 12, the two connecting blocks 12 are respectively and fixedly connected to one side of the mixing barrel 1 and the cover plate 2, threaded connection is carried out between the two connecting blocks 12 through a screw 13, and a knob 14 is fixedly connected to one end of the screw 13.

Swing joint has pivot 5 in mixing drum 1, fixedly connected with stirring fan blade 8 on pivot 5, the box 7 is added to the top fixedly connected with of 1 inboard of mixing drum, it has rectangular channel 10 to open bottom one end of box 7, baffle 11 has been placed to the below of rectangular channel 10, one side fixedly connected with movable rod 24 of baffle 11, the bottom fixedly connected with lantern ring 26 of adding material box 7, one end of movable rod 24 extends away and fixedly connected with limiting plate 27 from lantern ring 26 in, the cover is equipped with spring 25 on the movable rod 24, one side of mixing drum 1 is opened and is had sliding tray 22, the one end of baffle 11 extends away from sliding tray 22, the width of baffle 11 is less than the width of sliding tray 22, one side fixed mounting of mixing drum 1 has motor 9, the transmission shaft fixed connection of motor 9 is in the one end of pivot 5.

The implementation mode is specifically as follows:

the bottom of the mixing barrel 1 is fixedly connected with a plurality of supporting columns 3, the bottom of each supporting column 3 is connected with a foot pad 4, the mixing barrel 1 has a certain operation height, vibration generated in work is reduced through the foot pads 4, the screw 13 is connected with the two connecting blocks 12 by rotating the knob 14, the cover plate 2 is fixed at the top of the mixing barrel 1, mixed liquid is prevented from overflowing from an opening of the mixing barrel 1 in the mixing process, waste of raw materials is avoided, the motor 9 works to drive the rotating shaft 5 to rotate, the rotating shaft 5 drives the stirring fan blades 8 to rotate, the stirring fan blades 8 are used for mixing and stirring the raw materials in the mixing barrel 1, stirring raw materials to be added are placed in the feeding box 7, the baffle 11 at the bottom of the feeding box 7 blocks the rectangular groove 10, the stirring raw materials are prevented from leaking from the rectangular groove 10, the movable rod 24 connected with one side of the baffle 11 enables the baffle 11 to move together with the movable rod 24 in the lantern ring 26, the stopper plate 27 prevents the movable lever 24 from falling off the collar 26.

The other end of the rotating shaft 5 penetrates through one side of the mixing barrel 1 and extends out to be connected with a rotating ring 6 through a limiting part, the limiting part comprises a limiting block 15, the limiting block 15 is fixedly connected with the side surface of the rotating shaft 5, the rotating ring 6 is sleeved on the rotating shaft 5, a limiting groove 16 is formed in the inner side of the rotating ring 6, the limiting block 15 is positioned in the limiting groove 16, one end of the rotating shaft 5 is in threaded connection with a first nut 17, a blocking ring 18 is sleeved on the rotating shaft 5, the blocking ring 18 is positioned between the rotating ring 6 and the mixing barrel 1, a plurality of connecting holes 19 are formed in the side surface of the rotating ring 6, a plurality of contact rods 20 are placed on one side of the rotating ring 6, one end of each contact rod 20 respectively extends out from the corresponding connecting hole 19 and is in threaded connection with a second nut 21, a contact block 23 is fixedly connected with the bottom of one end of the baffle plate 11, the side surface of each contact rod 20 is in contact with one side of the contact block 23 when rotating, the side surface of the bottom of the contact block 23 is an arc angle, the end of the contact rod 20 is sleeved with a rubber sleeve.

The implementation mode is specifically as follows:

when the rotating shaft 5 rotates, the limiting block 15 on the side surface rotates, the rotating shaft 5 drives the rotating ring 6 to rotate together due to the limiting effect of the limiting groove 16, one end of the rotating shaft 5 is in threaded connection with a first nut 17 to prevent the rotating ring 6 from falling off from the rotating shaft 5, the baffle ring 18 enables a certain interval to exist between the rotating ring 6 and the mixing barrel 1, the contact rod 20 is convenient to rotate, the contact rod 20 is driven to be in contact with the contact block 23 through the rotation of the rotating ring 6, the contact block 23 moves along the sliding groove 22 in the contact process to drive the baffle 11 to move, quantitative stirring raw materials fall into the mixing barrel 1 from the rectangular groove 10 after the baffle 11 is moved out of the rectangular groove 10, after the contact rod 20 rotates to the position below the contact block 23, the baffle 11 returns to the position below the rectangular groove 10 under the elastic effect of the spring 25 to block the rectangular groove 10, and the installation amount of the contact rods 20 is added or reduced in the plurality of connecting holes 19, the number of times the rectangular groove 10 is opened and closed can be adjusted to adjust the rate of feeding.

The utility model discloses the theory of operation:

referring to the attached drawings 1-8 of the specification, in the using process, a screw 13 is connected with two connecting blocks 12 by rotating a knob 14, a cover plate 2 is fixed at the top of a mixing barrel 1, the mixed liquid is prevented from overflowing from an opening of the mixing barrel 1 in the mixing process to cause waste of raw materials, a motor 9 works to drive a rotating shaft 5 to rotate, the rotating shaft 5 drives a stirring fan blade 8 to rotate, the stirring fan blade 8 mixes and stirs the raw materials in the mixing barrel 1, the stirring raw materials to be added are placed in a feeding box 7, a baffle 11 at the bottom of the feeding box 7 blocks a rectangular groove 10 to prevent the stirring raw materials from leaking from the rectangular groove 10, a movable rod 24 connected with one side of the baffle 11 enables the baffle 11 to move in a lantern ring 26 along with the movable rod 24, a limiting plate 27 prevents the movable rod 24 from falling off the lantern ring 26, and a limiting block 15 at the side of the rotating shaft 5 rotates, and because the limit action of the limit groove 16 makes the rotating shaft 5 drive the rotating ring 6 to rotate together, one end of the rotating shaft 5 is in threaded connection with a first nut 17 to prevent the rotating ring 6 from falling off from the rotating shaft 5, the baffle ring 18 makes a certain interval exist between the rotating ring 6 and the mixing barrel 1 to facilitate the rotation of the contact rod 20, the rotating ring 6 rotates to drive the contact rod 20 to contact with the contact block 23, the contact block 23 moves along the sliding groove 22 in the contact process to drive the baffle 11 to move, the quantitative stirring raw material falls into the mixing barrel 1 from the rectangular groove 10 after the baffle 11 moves out of the rectangular groove 10, after the contact rod 20 rotates to the lower part of the contact block 23, the baffle 11 returns to the lower part of the rectangular groove 10 under the elastic action of the spring 25 to block the rectangular groove 10, the opening and closing times of the rectangular groove 10 can be adjusted by adding or reducing the installation number of the contact rod 20 in the plurality of the connecting holes 19, to adjust the rate of addition.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the foregoing embodiments and the description with reference to the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention as claimed, which is defined by the claims appended hereto and their equivalents.

Claims

1. The utility model provides a compound acid mixing arrangement for stifled removal of ultra-low permeability oil field oil-water well, includes blending tank (1), its characterized in that, the top of blending tank (1) is connected with apron (2) through hinge (28), one side of apron (2) is connected with adapting unit, swing joint has pivot (5) in blending tank (1), fixedly connected with stirring fan blade (8) on pivot (5), the top fixedly connected with of blending tank (1) inboard adds feed box (7), open bottom one end of adding feed box (7) has rectangular channel (10), baffle (11) have been placed to the below of rectangular channel (10), one side fixedly connected with movable rod (24) of baffle (11), the bottom fixedly connected with lantern ring (26) of adding feed box (7), the one end of movable rod (24) extends and fixedly connected with limiting plate (27) from lantern ring (26), the cover is equipped with spring (25) on movable rod (24), open one side of blending bin (1) has sliding tray (22), the one end of baffle (11) extends away from sliding tray (22), the width of baffle (11) is less than the width of sliding tray (22), one side fixed mounting of blending bin (1) has motor (9), the transmission shaft fixed connection of motor (9) is in the one end of pivot (5), the other end of pivot (5) runs through one side of blending bin (1) and extends away and be connected with swivel becket (6) through spacing part, the side of swivel becket (6) is opened has a plurality of connecting holes (19), a plurality of contact bars (20) have been placed to one side of swivel becket (6), every the one end of contact bar (20) extends away and threaded connection has second nut (21) from corresponding connecting hole (19) respectively, the bottom of baffle (11) one end fixedly connected with contact block (23), the side of contact lever (20) contacts with one side of contact block (23) when rotating.

2. The composite acid mixing device for the blockage removal of the oil-water well in the ultra-low permeability oilfield according to claim 1, wherein the connecting component comprises two connecting blocks (12), the two connecting blocks (12) are respectively and fixedly connected to one side of the mixing barrel (1) and one side of the cover plate (2), the two connecting blocks (12) are in threaded connection through a screw rod (13), and one end of the screw rod (13) is fixedly connected with a knob (14).

3. The composite acid mixing device for the blockage removal of the ultralow permeability oil-water well in the oil field according to claim 1, wherein the limiting component comprises a limiting block (15), the limiting block (15) is fixedly connected to the side surface of the rotating shaft (5), the rotating ring (6) is sleeved on the rotating shaft (5), a limiting groove (16) is formed in the inner side of the rotating ring (6), the limiting block (15) is located in the limiting groove (16), one end of the rotating shaft (5) is in threaded connection with a first nut (17), a baffle ring (18) is sleeved on the rotating shaft (5), and the baffle ring (18) is located between the rotating ring (6) and the mixing barrel (1).

4. The composite acid mixing device for the blockage removal of the ultra-low permeability oil-water well in the oil field according to claim 1, wherein a plurality of support columns (3) are fixedly connected to the bottom of the mixing barrel (1), a foot pad (4) is fixedly connected to the bottom of each support column (3), and anti-skid lines are arranged at the bottom of each foot pad (4).

5. The composite acid mixing device for plugging removal of the ultra-low permeability oilfield oil and water well according to claim 1, wherein the side edge of the bottom of the contact block (23) is an arc angle, and the end head of the contact rod (20) is sleeved with a rubber sleeve.