CN223404835U - A rapid mixing device for fracturing fluid at oil production sites - Google Patents

Abstract

The utility model discloses a rapid mixing device for fracturing fluid at an oil production site, comprising a mixing barrel, a bracket provided at the lower end of the mixing barrel, a feed pipe provided at the lower end of the mixing barrel, a cleaning mechanism connected through one side of the mixing barrel, a barrel cover bolted to the upper end of the mixing barrel, and a thickener inlet provided through one side of the upper end of the barrel cover. The cleaning mechanism can enable the equipment to be cleaned quickly and effectively, thereby reducing the maintenance time of the equipment and improving work efficiency. It can ensure that after each mixing operation, the inner wall of the mixing barrel is thoroughly cleaned to avoid residues affecting the quality and efficiency of the next mixing, and provide a good ratio mixing environment for the mixing of the fracturing fluid; the stirring mechanism can enable the equipment to be stirred quickly and effectively, thereby improving the mixing efficiency and quality. Since the stirring rods are symmetrically installed on the outer walls of the two ends of the rotating rod, the materials in the mixing barrel can be evenly mixed.

Description

Quick mixing device of oil development scene fracturing fluid

Technical Field

The utility model relates to the technical field of rapid fracturing fluid mixing, in particular to a rapid fracturing fluid mixing device for an oil exploitation site.

Background

The fracturing fluid is a heterogeneous unstable chemical system formed by a plurality of additives according to a certain proportion, is a working fluid used when the fracturing modification is carried out on an oil-gas layer, and has the main functions of making a seam and carrying sand, and high pressure formed by ground equipment is transferred into a stratum, so that the stratum is broken to form a crack and a propping agent is conveyed along the crack. The fracturing fluid is compatible with stratum rock and reservoir fluid and has minimal damage to the permeability of the propping agent;

The patent CN216260085U discloses a fracturing fluid mixing device, which comprises a tank body, wherein a feed inlet and a discharge outlet are formed in the tank body, a rotating shaft is rotatably arranged on the tank body, a stirring structure for stirring fracturing fluid is arranged on the outer peripheral surface of the rotating shaft, the rotating shaft is in transmission connection with a first power mechanism, the first power mechanism is used for driving the rotating shaft to rotate, the fracturing fluid mixing device further comprises a partition plate, the partition plate is fixedly arranged in the tank body and divides an inner cavity of the tank body into an upper cavity and a lower cavity, the upper cavity is communicated with the feed inlet, the lower cavity is communicated with the discharge outlet, a through hole which penetrates up and down is formed in the partition plate, a cylinder body is fixed on the lower side surface of the partition plate, an opening is formed in the upper end of the cylinder body, the opening corresponds to and is communicated with the through hole, a sealing plate is arranged at the lower end of the cylinder body, and a liquid passing hole which is communicated with the lower cavity is arranged on the outer peripheral surface of the cylinder body.

At present, when the conventional rapid fracturing fluid mixing device for the petroleum exploitation site is used for preparing fracturing fluid in practice, the fracturing fluid needs to be prepared rapidly due to instability of the fracturing fluid, and the modification of the fracturing fluid is easily caused by adopting a plurality of groups of continuous stirring to reduce precipitation, so that normal use is influenced.

Disclosure of utility model

The utility model aims to provide a rapid fracturing fluid mixing device for an oil exploitation site, which aims to solve the problems that when the rapid fracturing fluid mixing device for the oil exploitation site is used for preparing fracturing fluid in practice, the fracturing fluid needs to be rapidly prepared due to instability of the fracturing fluid, and the problems that a plurality of groups of continuous stirring are adopted to reduce precipitation, but the denaturation of the fracturing fluid is easy to cause and normal use is influenced.

The quick fracturing fluid mixing device comprises a mixing cylinder, wherein a bracket is arranged at the lower end of the mixing cylinder, a discharging pipe is arranged at the lower end of the mixing cylinder, one side of the mixing cylinder is connected with a cleaning mechanism in a penetrating way, the upper end of the mixing cylinder is connected with a cylinder cover in a bolting way, one side of the upper end of the cylinder cover is connected with a thickener inlet in a penetrating way, the upper end of the cylinder cover is detachably connected with a stirring mechanism, and one side of the upper end of the cylinder cover is connected with a raw material inlet in a penetrating way;

the cleaning mechanism comprises a three-way pipe, one side of the three-way pipe is in through connection with one side of the mixing cylinder, a valve is arranged on the outer wall of the three-way pipe, a water spray ring is arranged at one end of the three-way pipe, a spray head is fixedly connected with the lower end of the water spray ring, a connecting flange is fixedly connected with one side of the three-way pipe, a filter cylinder is lapped on the inner wall of the connecting flange, and a pipeline is bolted to one side of the connecting flange.

Preferably, the upper end of the bracket is fixedly connected with the lower end of the mixing cylinder, and the upper end of the discharging pipe is fixedly connected with the lower end of the mixing cylinder.

Preferably, the outer wall of the three-way pipe is sleeved with the inner wall of the valve, and one side of the three-way pipe is in through connection with one side of the water spraying ring.

Preferably, twenty spray heads are distributed at equal intervals in an annular shape at the lower end of the spray ring.

Preferably, the stirring mechanism comprises a motor, the lower extreme of motor and the upper end of mixing section of thick bamboo can be dismantled and be connected, the output shaft of motor is provided with the bull stick, the outer wall of bull stick is provided with puddler one, the outer wall rotation of bull stick is connected with the rotation countershaft, the outer wall fixedly connected with puddler two of rotation countershaft, the one end fixedly connected with screw thread head of rotation countershaft, the outer wall meshing of screw thread head is connected with the screwed ring.

Preferably, an output shaft of the motor is in transmission connection with the upper end of the rotating rod, and the outer wall of the rotating rod is fixedly connected with one end of the stirring rod I.

Preferably, the stirring rods I are symmetrically arranged on the outer walls of the two ends of the rotating rod respectively.

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

1. the cleaning mechanism can be used for quickly and effectively cleaning equipment, so that the maintenance time of the equipment is reduced, the working efficiency is improved, the inner wall of the mixing cylinder can be thoroughly cleaned after each mixing operation, the influence of residues on the quality and efficiency of the next mixing operation is avoided, and a good proportioning mixing environment is provided for the mixing of fracturing fluids;

2. The stirring mechanism can enable equipment to be stirred fast and effectively, so that mixing efficiency and quality are improved, as the stirring rods are symmetrically installed on the outer walls of the two ends of the rotating rod respectively, materials in the mixing barrel can be uniformly mixed, material layering phenomenon caused by uneven stirring is avoided, in addition, the rotating speed of the motor can be controlled and adjusted to meet material mixing requirements of different viscosities and densities, mixing efficiency and quality are improved, good stability and adaptability are achieved, and practicability is provided for fast mixing of fracturing fluid in petroleum exploitation sites.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of a cleaning mechanism according to the present utility model;

FIG. 3 is a schematic view of the stirring mechanism of the present utility model;

fig. 4 is a schematic side cut-away view of a three-dimensional structure of the present utility model.

The device comprises a mixing cylinder 1, a bracket 2, a discharging pipe 3, a cleaning mechanism 4, a cylinder cover 5, a thickener inlet 6, a stirring mechanism 7, a raw material inlet 8, a 41, a three-way pipe 42, a valve 43, a spray ring 44, a spray nozzle 45, a connecting flange 46, a filter cylinder 47, a pipeline 71, a motor 72, a rotating rod 73, a stirring rod I74, a rotating auxiliary shaft 75, a stirring rod II 76, a threaded head 77 and a threaded ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 4, the utility model provides a technical scheme, the quick fracturing fluid mixing device for petroleum exploitation site comprises a mixing cylinder 1, wherein the lower end of the mixing cylinder 1 is provided with a bracket 2, the lower end of the mixing cylinder 1 is provided with a discharging pipe 3, one side of the mixing cylinder 1 is connected with a cleaning mechanism 4 in a penetrating way, the upper end of the mixing cylinder 1 is bolted with a cylinder cover 5, one side of the upper end of the cylinder cover 5 is connected with a thickener inlet 6 in a penetrating way, the upper end of the cylinder cover 5 is detachably connected with a stirring mechanism 7, one side of the upper end of the cylinder cover 5 is connected with a raw material inlet 8 in a penetrating way, the cleaning mechanism 4 comprises a three-way pipe 41, one side of the three-way pipe 41 is connected with one side of the mixing cylinder 1 in a penetrating way, the outer wall of the three-way pipe 41 is provided with a valve 42, one end of the three-way pipe 41 is provided with a water spraying ring 43, the lower end of the water spraying ring 43 is fixedly connected with a spray nozzle 44, one side of the three-way pipe 41 is fixedly connected with a connecting flange 45, the inner wall of the connecting flange 45 is fixedly connected with a filter cylinder 46, one side of the connecting flange 45 is bolted with a pipeline 47, the upper end of the bracket 2 is fixedly connected with the lower end of the mixing cylinder 1, and the upper end of the mixing cylinder 1 is fixedly connected with the lower end of the mixing cylinder 3;

The valve 42 on the three-way pipe 41 is in a closed state before the mixing operation, raw materials are sent into the mixing cylinder 1 from the raw material inlet 8 at the top of the mixing cylinder 1, then a thickening agent is added into the mixing cylinder 1 through the thickening agent inlet 6, the preparation operation of fracturing fluid is carried out on site, the influence of instability of the fracturing fluid on petroleum exploitation operation is avoided, in actual preparation, the raw material inlet 8 is used for throwing the raw materials, then the valve 42 on the three-way pipe 41 is opened, water is input into the mixing cylinder 1, the water is filtered through the filter cylinder 46 before entering the mixing cylinder 1, clean pollution-free water source is guaranteed, the valve 42 on the three-way pipe 41 is closed after the water is conveyed, a threaded head 76 is arranged at the tail end of a stirring rod II 75, the threaded head 76 is provided with inclined teeth, a threaded ring 77 is fixedly connected to the inner wall of the mixing cylinder 1, the bottom of the threaded ring 77 is provided with inclined teeth meshed with the threaded head 76, the threaded head 76 is matched with the threaded ring 77, in order to realize rotary motion of a stirring rod I73 and a thickening agent II, in actual application, the thickening agent inlet 6 is used for injecting the raw materials into the mixing cylinder 1, and the raw materials are added into the mixing cylinder 8.

Referring to fig. 2, in order to quickly clean the inner wall of the mixing cylinder 1, the outer wall of the three-way pipe 41 is sleeved with the inner wall of the valve 42, one side of the three-way pipe 41 is in through connection with one side of the spray ring 43, and twenty spray nozzles 44 are annularly and equidistantly distributed at the lower end of the spray ring 43;

The water spraying pressure and flow of the cleaning mechanism 4 can be regulated by controlling the opening and closing of the valve 42, so that the inner wall of the mixing cylinder 1 is fully cleaned, in a specific operation process, raw materials are firstly added into the mixing cylinder 1 through the raw material inlet 8, then a proper amount of thickening agent is added through the thickening agent inlet 6, then the motor 71 is started, the rotating rod 72 can be driven to perform a rotating action through the output end of the motor 71, the raw materials and the thickening agent are fully mixed in the mixing cylinder 1, after the mixing is finished, if the mixing cylinder 1 needs to be cleaned, the valve 42 can be opened, cleaning water is introduced through the three-way pipe 41, the inner wall of the mixing cylinder 1 is flushed by the water spraying ring 43 and the spray nozzle 44, the cleanliness of the mixing cylinder 1 is ensured, the influence of material residues on the subsequent mixing quality is avoided, the rapid and efficient mixing of fracturing fluid is realized, meanwhile, the cleanliness of the mixing process and the uniformity of the raw materials are ensured, and the efficiency and quality of fracturing operation are greatly improved.

Referring to fig. 3, in order to quickly stir and mix the raw materials in the mixing drum 1, the stirring mechanism 7 comprises a motor 71, the lower end of the motor 71 is detachably connected with the upper end of the mixing drum 1, an output shaft of the motor 71 is provided with a rotating rod 72, the outer wall of the rotating rod 72 is provided with a stirring rod I73, the outer wall of the rotating rod 72 is rotationally connected with a rotating auxiliary shaft 74, the outer wall of the rotating auxiliary shaft 74 is fixedly connected with a stirring rod II 75, one end of the rotating auxiliary shaft 74 is fixedly connected with a threaded head 76, the outer wall of the threaded head 76 is in meshed connection with a threaded ring 77, the output shaft of the motor 71 is in transmission connection with the upper end of the rotating rod 72, the outer wall of the rotating rod 72 is fixedly connected with one end of the stirring rod I73, and the stirring rod I73 is respectively and symmetrically arranged at the outer walls of two ends of the rotating rod 72;

The center of the upper end of the cylinder cover 5 is provided with a motor 71, the output end of the motor 71 is provided with a rotating rod 72, when the motor 71 is used for mixing, the motor 71 drives a stirring rod I73 and a stirring rod II 75 to rotate through the rotating rod 72, the raw materials are fully stirred and mixed for reaction through the rotating rod 72, the rotating rod 72 is provided with a stirring rod II 75 on a stirring rod I and a plurality of rotating auxiliary shafts 74, the stirring rods I73 are fixed on the outer wall of the rotating rod 72 in two groups, each group of stirring rods I73 is arranged at equal intervals along the circumferential direction of the rotating rod 72, a rotating auxiliary shaft 74 is arranged between the stirring rods II 75, the rotating auxiliary shaft 74 is rotatably arranged on the outer wall of the rotating rod 72, one end of the rotating auxiliary shaft 74 is provided with a threaded head 76, the outer wall of the threaded head 76 is meshed with the lower end of a threaded ring 77, the rotating auxiliary shaft 74 is provided with a plurality of stirring rods II 75 which are mutually perpendicular to each other and are fixedly connected, when the motor 71 drives the rotating rod 72 to rotate, the stirring rod one 73 and the rotating auxiliary shaft 74 rotate to stir and mix raw materials under the drive of the rotating rod 72, meanwhile, the threaded head 76 contacts with the threaded ring 77 and rotates under the action of the threaded ring 77 to drive the stirring rod two 75 to rotate, so that a multidirectional stirring effect can be obtained when stirring and mixing are carried out, the uniformity of mixing is ensured, meanwhile, the mixing efficiency is improved, the rapid mixing work is realized, the rotating speed of the rotating rod 72 can be regulated through a speed regulating device of the motor 71 to adapt to different mixing requirements, after the raw materials and the thickening agent in the mixing cylinder 1 reach a preset mixing proportion and uniformity, the motor 71 is controlled to stop, the mixing process is completed, and in order to further improve the mixing efficiency and quality, the rapid, uniform and high-quality mixing process is realized, greatly improves the working efficiency of the petroleum exploitation site and the quality of the fracturing fluid.

Working principle: firstly, the valve 42 on the three-way pipe 41 is in a closed state before the mixing operation, raw materials are sent into the mixing cylinder 1 from the raw material inlet 8 at the top of the mixing cylinder 1, then a thickening agent is added into the mixing cylinder 1 through the thickening agent inlet 6, the preparation operation of fracturing fluid is carried out on site, the influence of the instability of the fracturing fluid on the petroleum exploitation operation is avoided, in the actual preparation process, the raw material inlet 8 is used for throwing the raw materials, then the valve 42 on the three-way pipe 41 is opened, water is input into the mixing cylinder 1, the water is filtered through the filter cylinder 46 before entering the mixing cylinder 1, the clean and pollution-free water source is ensured, the valve 42 on the three-way pipe 41 is closed after the water is conveyed, the tail end of the stirring rod II 75 is provided with a screw head 76, the screw head 76 is provided with inclined teeth, the inner wall of the mixing cylinder 1 is fixedly connected with a screw ring 77, the bottom of the screw ring 77 is provided with inclined teeth meshed with the screw head 76, the screw thread head 76 cooperates with the screw thread ring 77 to realize the rotation movement of the stirring rod one 73 and the stirring two, in practical application, the thickener inlet 6 is used for injecting thickener into the mixing cylinder 1, the raw material inlet 8 is used for adding other raw materials, the water spraying pressure and flow rate of the cleaning mechanism 4 can be regulated by controlling the opening and closing of the valve 42, the inner wall of the mixing cylinder 1 is ensured to be sufficiently cleaned, in the specific operation process, firstly, raw materials are added into the mixing cylinder 1 through the raw material inlet 8, then a proper amount of thickener is added through the thickener inlet 6, then the motor 71 is started, the output end of the motor 71 can drive the rotating rod 72 to perform rotation, so that the raw materials and the thickener are sufficiently mixed in the mixing cylinder 1, after the mixing is finished, if the mixing cylinder 1 needs cleaning, the valve 42 can be opened, the cleaning water is introduced through the three-way pipe 41, the inner wall of the mixing cylinder 1 is flushed by the water spraying ring 43 and the spray nozzle 44, so that the cleanliness of the mixing cylinder 1 is ensured, the influence of material residues on the subsequent mixing quality is avoided, the rapid and efficient mixing of fracturing fluid is realized, the cleanliness of the mixing process and the uniformity of raw materials are ensured, and the efficiency and quality of fracturing operation are greatly improved;

Then a motor 71 is arranged in the center of the upper end of the cylinder cover 5, a rotating rod 72 is arranged at the output end of the motor 71, during mixing, the rotating rod 72 is driven to rotate by the driving motor 71, the motor 71 drives a stirring rod I73 and a stirring rod II 75 to rotate by the rotating rod 72, the raw materials are fully stirred and mixed to react by the rotating rod 72, a stirring rod II 75 on a stirring rod I and a plurality of rotating auxiliary shafts 74 is arranged on the rotating rod 72, the stirring rods I73 are fixed on the outer wall of the rotating rod 72 in two groups, each group of stirring rods I73 is arranged at equal intervals along the circumferential direction of the rotating rod 72, a rotating auxiliary shaft 74 is arranged between the stirring rods II 75, the rotating auxiliary shaft 74 is rotatably arranged on the outer wall of the rotating rod 72, one end of the rotating auxiliary shaft 74 is provided with a threaded head 76, the outer wall of the threaded head 76 is meshed with the lower end of a threaded ring 77, a plurality of stirring rods II 75 which are mutually perpendicular to each other and are fixedly connected, when the motor 71 drives the rotating rod 72 to rotate, the stirring rod one 73 and the rotating auxiliary shaft 74 rotate to stir and mix raw materials under the drive of the rotating rod 72, meanwhile, the threaded head 76 contacts with the threaded ring 77 and rotates under the action of the threaded ring 77 to drive the stirring rod two 75 to rotate, so that a multidirectional stirring effect can be obtained when stirring and mixing are carried out, the uniformity of mixing is ensured, meanwhile, the mixing efficiency is improved, the rapid mixing work is realized, the rotating speed of the rotating rod 72 can be regulated through a speed regulating device of the motor 71 to adapt to different mixing requirements, after the raw materials and the thickening agent in the mixing cylinder 1 reach a preset mixing proportion and uniformity, the motor 71 is controlled to stop, the mixing process is completed, and in order to further improve the mixing efficiency and quality, the rapid, uniform and high-quality mixing process is realized, the working efficiency of the petroleum exploitation site and the quality of the fracturing fluid are greatly improved, the working process of the whole device is just the above, and the contents which are not described in detail in the specification belong to the prior art which are known by the expert in the field.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The rapid fracturing fluid mixing device for the petroleum exploitation site comprises a mixing cylinder (1) and is characterized in that a bracket (2) is arranged at the lower end of the mixing cylinder (1), a blanking pipe (3) is arranged at the lower end of the mixing cylinder (1), a cleaning mechanism (4) is connected to one side of the mixing cylinder (1) in a penetrating way, a cylinder cover (5) is bolted to the upper end of the mixing cylinder (1), a thickener inlet (6) is connected to one side of the upper end of the cylinder cover (5) in a penetrating way, a stirring mechanism (7) is detachably connected to the upper end of the cylinder cover (5), and a raw material inlet (8) is connected to one side of the upper end of the cylinder cover (5) in a penetrating way;

The cleaning mechanism (4) comprises a three-way pipe (41), one side of the three-way pipe (41) is connected with one side of the mixing cylinder (1) in a penetrating way, a valve (42) is arranged on the outer wall of the three-way pipe (41), a spray ring (43) is arranged at one end of the three-way pipe (41), a spray head (44) is fixedly connected to the lower end of the spray ring (43), a connecting flange (45) is fixedly connected to one side of the three-way pipe (41), a filter cylinder (46) is connected to the inner wall of the connecting flange (45) in a lap joint mode, and a pipeline (47) is connected to one side of the connecting flange (45) in a bolt mode.

2. The rapid fracturing fluid mixing device for the petroleum exploitation site is characterized in that the upper end of the support (2) is fixedly connected with the lower end of the mixing cylinder (1), and the upper end of the discharging pipe (3) is fixedly connected with the lower end of the mixing cylinder (1).

3. The rapid fracturing fluid mixing device for petroleum exploitation sites, as claimed in claim 1, is characterized in that the outer wall of the three-way pipe (41) is sleeved with the inner wall of the valve (42), and one side of the three-way pipe (41) is in through connection with one side of the water spraying ring (43).

4. The rapid fracturing fluid mixing device for petroleum exploitation sites according to claim 3, wherein twenty spray heads (44) are distributed at the lower end of the spray ring (43) in an annular equidistant manner.

5. The rapid mixing device for fracturing fluid in petroleum exploitation sites, as claimed in claim 1, is characterized in that the stirring mechanism (7) comprises a motor (71), the lower end of the motor (71) is detachably connected with the upper end of the mixing cylinder (1), an output shaft of the motor (71) is provided with a rotating rod (72), the outer wall of the rotating rod (72) is provided with a stirring rod I (73), the outer wall of the rotating rod (72) is rotationally connected with a rotating auxiliary shaft (74), the outer wall of the rotating auxiliary shaft (74) is fixedly connected with a stirring rod II (75), one end of the rotating auxiliary shaft (74) is fixedly connected with a threaded head (76), and the outer wall of the threaded head (76) is in meshed connection with a threaded ring (77).

6. The rapid fracturing fluid mixing device for petroleum exploitation sites of claim 5, wherein the output shaft of the motor (71) is in transmission connection with the upper end of the rotating rod (72), and the outer wall of the rotating rod (72) is fixedly connected with one end of the stirring rod I (73).

7. The rapid fracturing fluid mixing device for petroleum exploitation sites of claim 5, wherein the stirring rods (73) are symmetrically arranged on the outer walls of the two ends of the rotating rod (72) respectively.