CN210622779U

CN210622779U - Oil field oil-water well composite acidizing fluid injection device

Info

Publication number: CN210622779U
Application number: CN201921730453.4U
Authority: CN
Inventors: 杨伟民; 孟李霞; 田红; 张东
Original assignee: Gansu Prius Petroleum Technology Co Ltd
Current assignee: Gansu Prius Petroleum Technology Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-05-26
Anticipated expiration: 2029-10-15

Abstract

The utility model belongs to the technical field of the oil field technique and specifically relates to an oil field oil-water well composite acidizing fluid injection device, including a liquid distribution section of thick bamboo, the equal vertical intercommunication in top both ends of a liquid distribution section of thick bamboo has annotates the liquid pipe, just the bottom of a liquid distribution section of thick bamboo is provided with strutting arrangement, the inside of a liquid distribution section of thick bamboo is equipped with the mixing mechanism. The utility model discloses a set up the mixing mechanism to can mix the ratio to dilute to the compound acidizing fluid of joining in marriage liquid section of thick bamboo inside, effectively improve the degree of consistency that the compound acidizing fluid dilutes, simultaneously through setting up the link gear, thereby can ensure the high efficiency of mixing mechanism work; set up fixed cover and stirring vane to can stir the compound acidizing fluid of joining in marriage a liquid section of thick bamboo inside once more, further improve the dilution efficiency of compound acidizing fluid with this, ensure the quality of acidizing construction simultaneously.

Description

Oil field oil-water well composite acidizing fluid injection device

Technical Field

The utility model relates to an oil field especially relates to an oil field oil-water well composite acidizing fluid injection device.

Background

An oil well is a borehole drilled by a drilling method. After drilling oil layer, the oil layer casing is set, and the cement is injected into the annular space between casing and well wall to maintain well wall and seal oil, gas and water layer. The acidification technology is one of the production increasing measures widely applied to oil and gas wells at present, can effectively remove the damage caused by a reservoir stratum in the drilling, completion and production processes, and improves the oil and gas yield. However, the acid liquor used in the existing acidification technology is usually required to be diluted in proportion, and the existing acid liquor injection device cannot rapidly and uniformly mix and proportion the composite acid liquor, so that the construction quality is reduced, and the oil field oil-water well composite acidification liquor injection device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing device in the prior art can not quickly mix the composite acid liquid evenly, and providing a composite acidizing liquid injection device for an oil-water well in an oil field.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a composite acidizing fluid injection device for an oil field and an oil well comprises a fluid distribution cylinder, wherein both ends of the top of the fluid distribution cylinder are vertically communicated with fluid injection pipes, and the bottom of the liquid distribution cylinder is provided with a supporting device, the interior of the liquid distribution cylinder is provided with a mixing mechanism, the mixing mechanism comprises a driving shaft which is horizontally and rotatably arranged in the middle of the interior of the liquid distribution cylinder, one end of the driving shaft penetrates through the liquid distribution cylinder, the end part of the driving shaft is connected with a driving motor, the outer side of the driving shaft is fixedly sleeved with a secondary helical blade, a plurality of driven shafts are rotatably arranged in the liquid distribution barrel outside the driving shaft at equal intervals along the circumferential direction, one end of each driven shaft, far away from the driving motor, is connected with the driving shaft through a linkage mechanism, and the outer side of the driven shaft is sleeved with a first-stage helical blade, a gap is reserved between the first-stage helical blade and the second-stage helical blade, and the bottom of the liquid distribution cylinder is provided with a pumping mechanism.

Preferably, the supporting device comprises a bottom plate horizontally arranged below the liquid distribution cylinder, the two ends of the top of the bottom plate are vertically connected with supporting frames, the two supporting frames are jointly sleeved on the outer side of the liquid distribution cylinder, the four corners of the bottom plate are respectively rotatably provided with a moving wheel, and the moving wheels are universal wheels with brake mechanisms.

Preferably, the linkage mechanism comprises a driving gear fixedly sleeved at the end part of the driving shaft, driven gears are sleeved on the outer sides of driven shafts at the corresponding positions of the driving gears, and the driven gears are meshed with the driving gear.

Preferably, the pumping mechanism comprises a liquid discharge hopper fixedly mounted at the bottom end of the liquid preparation barrel, the liquid discharge hopper is communicated with the interior of the liquid preparation barrel, an acid liquid pump is fixedly mounted at the top end of a bottom plate at the position corresponding to the liquid discharge hopper, the liquid discharge hopper is communicated with a liquid inlet of the acid liquid pump, an injection pipe is mounted at a liquid outlet of the acid liquid pump, and the injection pipe is a stainless steel hose.

Preferably, the both ends of drive shaft all fix the cover and have connect fixed cover, the outside of fixed cover all is connected with a plurality of stirring vane along the circumferencial direction equidistance, leave the clearance between stirring vane and the one-level helical blade.

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

1. the utility model discloses a set up the mixing mechanism to can mix the ratio to dilute to the compound acidizing fluid of joining in marriage liquid section of thick bamboo inside, effectively improve the degree of consistency that the compound acidizing fluid dilutes, simultaneously through setting up the link gear, thereby can ensure the high efficiency of mixing mechanism work;

2. set up fixed cover and stirring vane to can stir the compound acidizing fluid of joining in marriage a liquid section of thick bamboo inside once more, further improve the dilution efficiency of compound acidizing fluid with this, ensure the quality of acidizing construction simultaneously.

Drawings

FIG. 1 is a schematic structural view of a composite acidizing fluid injection device for an oil-water well in an oil field, which is provided by the utility model;

fig. 2 is a schematic view of a cross-sectional structure of the composite acidizing fluid injection device for the oil-water well in the oil field, which is provided by the utility model;

fig. 3 is a schematic structural view of a mixing mechanism of the composite acidizing fluid injection device for the oil field and the water well of the oil field, which is provided by the utility model;

fig. 4 is the utility model provides a left side view structure schematic diagram of the mixing mechanism of the oil field oil-water well composite acidizing fluid injection device.

In the figure: the device comprises a liquid preparation cylinder 1, a liquid injection pipe 2, a driving motor 3, a support frame 4, a bottom plate 5, a moving wheel 6, an injection pipe 7, an acid liquid pump 8, a liquid discharge hopper 9, a driven shaft 10, a primary spiral blade 11, a secondary spiral blade 12, a driven gear 13, a driving shaft 14, a driving gear 15, a fixed sleeve 16 and a stirring blade 17.

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.

The oil field oil-water well composite acidizing fluid injection device comprises a liquid distribution cylinder 1, wherein both ends of the top of the liquid distribution cylinder 1 are vertically communicated with liquid injection pipes 2, a supporting device is arranged at the bottom of the liquid distribution cylinder 1, the supporting device comprises a bottom plate 5 horizontally arranged below the liquid distribution cylinder 1, both ends of the top of the bottom plate 5 are vertically connected with supporting frames 4, the two supporting frames 4 are jointly sleeved outside the liquid distribution cylinder 1, four corners of the bottom plate 5 are respectively rotatably provided with moving wheels 6, the moving wheels 6 are universal wheels with brake mechanisms, and a mixing mechanism is arranged inside the liquid distribution cylinder 1; through setting up support frame 4 and bottom plate 5 to can carry out the outrigger to a liquid preparation section of thick bamboo 1, remove wheel 6 through setting up simultaneously, thereby can be convenient for remove a liquid preparation section of thick bamboo 1, effectively improve the flexibility of a liquid preparation section of thick bamboo 1, annotate liquid pipe 2 through the setting, thereby can be simultaneously to a liquid preparation section of thick bamboo 1 inside pour into compound acidizing liquid and other complex liquid with it into, the later stage of being convenient for mixes the dilution.

The mixing mechanism comprises a driving shaft 14 which is horizontally and rotatably arranged at the middle position in a liquid distribution cylinder 1, one end of the driving shaft 14 penetrates through the liquid distribution cylinder 1, the end part of the driving shaft is connected with a driving motor 3, a secondary helical blade 12 is fixedly sleeved on the outer side of the driving shaft 14, a plurality of driven shafts 10 are rotatably arranged in the liquid distribution cylinder 1 outside the driving shaft 14 at equal intervals along the circumferential direction, one ends of the driven shafts 10 far away from the driving motor 3 are connected with the driving shaft 14 through a linkage mechanism, the linkage mechanism comprises a driving gear 15 fixedly sleeved at the end part of the driving shaft 14, driven gears 13 are sleeved on the outer sides of the driven shafts 10 at the corresponding positions of the driving gear 15, the driven gears 13 are mutually meshed with the driving gear 15, a primary helical blade 11 is sleeved on the outer side of each driven shaft 10, a gap is reserved between the primary helical, the outer side of the fixed sleeve 16 is connected with a plurality of stirring blades 17 at equal intervals along the circumferential direction, and a gap is reserved between each stirring blade 17 and the first-stage helical blade 11; through communicating driving motor 3 with external power source, thereby can drive shaft 14 rotatory, cause second grade helical blade 12 to carry out the propelling movement to joining in marriage the inside compound acidizing fluid of a liquid section of thick bamboo 1, at the rotatory in-process of drive shaft 14, through driven gear 13 and driving gear 15, thereby can drive many driven shafts 10 and the rotation of one-level helical blade 11, because driven gear 13 and driving gear 15 intermeshing, thereby second grade helical blade 12 is opposite with the 11 direction of rotation of one-level helical blade, with this to joining in marriage the inside compound acidizing fluid of a liquid section of thick bamboo 1 propelling movement that makes a round trip, effectively improve the degree of consistency that compound acidizing fluid dilutes, through setting up fixed cover 16 and stirring vane 17, thereby can stir the compound acidizing fluid of joining in marriage liquid section of thick bamboo 1 inside once more, with this dilution efficiency that further.

A pumping mechanism is arranged at the bottom of the liquid preparation cylinder 1, the pumping mechanism comprises a liquid discharge hopper 9 fixedly arranged at the bottom end of the liquid preparation cylinder 1, the liquid discharge hopper 9 is communicated with the interior of the liquid preparation cylinder 1, an acid liquid pump 8 is fixedly arranged at the top end of the bottom plate 5 at the position corresponding to the liquid discharge hopper 9, the liquid discharge hopper 9 is communicated with a liquid inlet of the acid liquid pump 8, an injection pipe 7 is arranged at a liquid outlet of the acid liquid pump 8, and the injection pipe 7 is a stainless steel hose; by connecting the acid liquid pump 8 with an external power supply, the diluted composite acid liquid in the liquid preparation barrel 1 can be pumped out through the liquid discharge hopper 9 and injected through the injection pipe 7.

The utility model discloses: at first through annotating liquid pipe 2 to joining in marriage liquid barrel 1 inside injection composite acidizing fluid and other complex liquid with it, mix the ratio through the composite acidizing fluid of mixing mechanism to joining in marriage liquid barrel 1 inside again and dilute, effectively improve the degree of consistency that composite acidizing fluid dilutes, guarantee the high efficiency of mixing mechanism work through setting up link gear simultaneously, and through setting up fixed cover 16 and stirring vane 17, thereby can stir joining in marriage the composite acidizing fluid of liquid barrel 1 inside once more, with this dilution efficiency that further improves composite acidizing fluid, ensure the quality of acidizing construction simultaneously, it can to carry out the pumping injection through pumping mechanism at last.

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 above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The composite acidizing fluid injection device for the oil-water well in the oil field comprises a fluid distribution cylinder (1), wherein the two ends of the top of the fluid distribution cylinder (1) are vertically communicated with a fluid injection pipe (2), and a supporting device is arranged at the bottom of the fluid distribution cylinder (1), and is characterized in that a mixing mechanism is arranged inside the fluid distribution cylinder (1), the mixing mechanism comprises a driving shaft (14) which is horizontally and rotatably arranged at the middle position inside the fluid distribution cylinder (1), one end of the driving shaft (14) penetrates through the fluid distribution cylinder (1), the end part of the driving shaft is connected with a driving motor (3), a secondary spiral blade (12) is fixedly sleeved on the outer side of the driving shaft (14), a plurality of driven shafts (10) are rotatably arranged inside the fluid distribution cylinder (1) outside the driving shaft (14) in an equidistance manner along the circumferential direction, one end of the driven shaft (10), which is far away from the driving motor (3), is connected, and the outer side of the driven shaft (10) is sleeved with a first-stage helical blade (11), a gap is reserved between the first-stage helical blade (11) and a second-stage helical blade (12), and the bottom of the liquid distribution cylinder (1) is provided with a pumping mechanism.

2. The oil field oil-water well composite acidizing fluid injection device of claim 1, wherein said supporting device comprises a bottom plate (5) horizontally arranged below a fluid distribution cylinder (1), wherein two ends of the top of said bottom plate (5) are vertically connected with supporting frames (4), two of said supporting frames (4) are jointly sleeved outside said fluid distribution cylinder (1), four corners of the bottom of said bottom plate (5) are rotatably provided with moving wheels (6), and said moving wheels (6) are universal wheels with brake mechanisms.

3. The oil field oil-water well composite acidizing fluid injection device of claim 1, wherein said linkage mechanism comprises a driving gear (15) fixedly sleeved at the end of a driving shaft (14), a driven gear (13) is sleeved outside a driven shaft (10) corresponding to the driving gear (15), and a plurality of said driven gears (13) are meshed with the driving gear (15).

4. The composite acidizing fluid injection device for the oil and water wells of the oil fields according to claim 2, wherein the pumping mechanism comprises a fluid discharge hopper (9) fixedly installed at the bottom end of the fluid preparation barrel (1), the fluid discharge hopper (9) is communicated with the interior of the fluid preparation barrel (1), an acid liquid pump (8) is fixedly installed at the top end of the bottom plate (5) at the position corresponding to the fluid discharge hopper (9), the fluid discharge hopper (9) is communicated with a liquid inlet of the acid liquid pump (8), an injection pipe (7) is installed at a liquid outlet of the acid liquid pump (8), and the injection pipe (7) is a stainless steel hose.

5. The oilfield oil-water well composite acidizing fluid injection device according to claim 1, wherein both ends of the driving shaft (14) are fixedly sleeved with fixing sleeves (16), the outer sides of the fixing sleeves (16) are connected with a plurality of stirring blades (17) at equal intervals along the circumferential direction, and a gap is reserved between each stirring blade (17) and each primary helical blade (11).