Oilfield water injection profile control agent mixing device

Abstract

The utility model relates to the technical field of mixing devices, in particular to an oilfield flooding profile control agent mixing device. The oilfield water injection profile control agent mixing device comprises a frame body, a movably connected mixing barrel is arranged in the frame body, a driving assembly for driving the mixing barrel is erected in the frame body, and a mixing assembly for mixing raw materials is arranged on the mixing barrel; the driving assembly comprises a reciprocating lead screw and a guide rod, the reciprocating lead screw is rotationally installed on one side of the interior of the frame body, the guide rod is fixedly installed on the other side of the interior of the frame body, and a movably-connected guide ring is erected between the reciprocating lead screw and the guide rod. According to the oilfield water injection profile control agent mixing device provided by the utility model, the driving assembly is arranged outside the mixing cylinder, so that the phenomenon that the driving assembly is stuck and does not rotate due to blockage of raw materials in the mixing cylinder can be reduced in the later use process, and the driving assembly can stably drive the mixing cylinder in the later stage.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing devices, in particular to an oilfield water injection profile control agent mixing device. Background Art

[0002] A reagent mixed with thickeners, oil displacement agents, friction reducers and water plugging agents is called a profile control (displacement) agent. Oilfield profile control agents are chemical agents used to adjust the water absorption or liquid production profile of the formation and improve crude oil recovery in oilfield development. They are mainly used for water plugging and profile control operations in water injection development oilfields. The mixing device is a special equipment used to prepare profile control (displacement) chemicals. Its core function is to mix various raw materials in proportion into a uniform solution to meet the needs of profile control, water plugging or oil displacement in oilfield water injection wells.

[0003] The existing Chinese patent publication number is CN217568365U, which is a one-way powder gel flooding agent production device for oil field flooding. According to the contents recorded in its specification, the device mainly controls the up and down movement of the shovel ring to scrape and clean the raw materials contaminated on the inner wall of the mixing box. The shovel ring is mainly driven by the rotation of the screw rod. The threaded groove of the exposed screw rod inside the raw material is easily blocked by the raw material and cannot be driven, which will affect the later use effect of the device.

[0004] Therefore, it is necessary to provide a new oilfield water injection profile control agent mixing device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an oilfield water injection profile control agent mixing device.

[0006] The oilfield water injection profile control agent mixing device provided by the utility model comprises: a frame, a movably connected mixing cylinder is provided in the frame, a driving assembly for driving the mixing cylinder is provided in the frame, and a mixing assembly for mixing raw materials is provided on the mixing cylinder;

[0007] The driving assembly includes a reciprocating screw rod and a guide rod, wherein the reciprocating screw rod is rotatably mounted on one side of the frame body, and the guide rod is fixedly mounted on the other side of the frame body. A movably connected guide ring is provided between the reciprocating screw rod and the guide rod, and the inner wall of the guide ring abuts against and is rotatably connected to the outer wall of the mixing drum;

[0008] The mixing assembly includes a plurality of toggling bars and toggling pieces for mixing raw materials.

[0009] Preferably, a fixedly connected rotating motor is installed on the guide ring, a fixedly connected driving gear is installed on the output end of the rotating motor, a fixedly connected linkage ring is sleeved on the outer wall of the mixing barrel, a plurality of annularly distributed linkage teeth are fixedly installed on the outer wall of the linkage ring, and the linkage teeth are meshed with the driving gear.

[0010] Preferably, a fixed ring is sleeved on a portion of the outer wall of the mixing cylinder facing the guide ring, and the outer wall of the fixed ring abuts against and is slidably connected to the inner wall of the guide ring.

[0011] Preferably, a top cover is provided on the top of the mixing cylinder, the inner wall of the top cover is against and slidably connected to the top of the mixing cylinder, the outer wall of the top cover is provided with a fixedly connected mounting frame, the mounting frame is fixedly connected to the frame body, and a feeding pipe connected to the interior of the top cover is fixedly installed inside the top cover.

[0012] Preferably, the mixing assembly further comprises a hydraulic cylinder, which is fixedly mounted on the top of the top cover, and a linkage plate fixedly connected thereto is mounted on the top of the hydraulic cylinder, and the bottom of the linkage plate is fixedly connected to the top of the toggle bar.

[0013] Preferably, the outer wall of the toggle bar is abutted against and slidably connected to the inner wall of the top cover, the outer wall of the toggle bar is fixedly connected to the toggle piece, a fixedly connected scraper bar is installed on the outer wall of the toggle bar, and the outer wall of the scraper bar is abutted against and slidably connected to the inner wall of the mixing barrel.

[0014] Compared with related technologies, the oilfield water injection profile control agent mixing device provided by the utility model has the following beneficial effects:

[0015] 1. The utility model arranges the driving assembly outside the mixing barrel, thereby reducing the possibility of the driving assembly being stuck and not rotating due to the jam of raw materials inside the mixing barrel during later use, thereby enabling the driving assembly to stably drive the mixing barrel in the later stage.

[0016] 2. The utility model inserts and installs the mixing component. After the mixing and discharge of the profile control agent is completed, the mixing cylinder can be driven downward to remove the mixing cylinder from the mixing component, thereby separating the mixing cylinder from the mixing component, and making it easier for the staff to clean the outer wall of the mixing component and the inner wall of the mixing cylinder.

[0017] 3. The utility model can scrape the raw materials on the inner wall of the mixing drum by setting the scraping strip to reduce the residual raw materials on the inner wall of the mixing drum during mixing, and then the discharge of the profile control agent in the later stage can also make the discharge of the profile control agent cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a structural schematic diagram of a preferred embodiment of the oilfield water injection profile control agent mixing device provided by the utility model;

[0019] Figure 2 for Figure 1 A schematic structural diagram of the frame and its components shown;

[0020] Figure 3 for Figure 1 The schematic diagram of the structure of the connection between the mixing cylinder, the top cover and the mixing assembly shown;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the connection between the top cover and the mixing assembly shown;

[0022] Figure 5 for Figure 1 The cross-sectional structural diagram of the mixing cylinder is shown.

[0023] Numbers in the figure: 1. Frame; 2. Mixing barrel; 21. Fixed ring; 3. Driving assembly; 31. Reciprocating screw; 32. Guide rod; 33. Guide ring; 34. Rotating motor; 341. Driving gear; 35. Linkage ring; 351. Linkage gear; 4. Top cover; 41. Mounting frame; 42. Feeding pipe; 5. Mixing assembly; 51. Hydraulic cylinder; 511. Linkage plate; 52. Toggle bar; 521. Toggle piece; 53. Scraper bar. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0026] See also Figures 1 to 5 The embodiment of the present utility model provides an oilfield water injection profile control agent mixing device, which includes: a frame 1.

[0027] In the embodiments of the present invention, please refer to Figures 1 to 5A movably connected mixing drum 2 is provided in the frame 1, a driving assembly 3 for driving the mixing drum 2 is provided in the frame 1, and a mixing assembly 5 for mixing the raw materials is provided on the mixing drum 2; the driving assembly 3 includes a reciprocating screw rod 31 and a guide rod 32, the reciprocating screw rod 31 is rotatably mounted on one side of the frame 1, and the guide rod 32 is fixedly mounted on the other side of the frame 1, and a movably connected guide ring 33 is provided between the reciprocating screw rod 31 and the guide rod 32, the inner wall of the guide ring 33 is abutted against the outer wall of the mixing drum 2 and is rotatably connected, A fixedly connected rotating motor 34 is mounted on the guide ring 33, and a fixedly connected driving gear 341 is mounted on the output end of the rotating motor 34. A fixedly connected linkage ring 35 is sleeved on the outer wall of the mixing drum 2, and a plurality of annularly distributed linkage teeth 351 are fixedly mounted on the outer wall of the linkage ring 35, and the linkage teeth 351 are meshedly connected with the driving gear 341. A fixedly connected fixing ring 21 is sleeved on the outer wall of the mixing drum 2 relative to the guide ring 33, and the outer wall of the fixing ring 21 is abutted against and slidably connected to the inner wall of the guide ring 33.

[0028] It should be noted that: by rotatably mounting the mixing drum 2 and arranging the drive assembly 3 outside the mixing drum 2, during later use, when the rotary motor 34 drives the drive gear 341 to rotate, and the drive gear 341 engages with the linkage gear 351 to drive the mixing drum 2 to rotate, the raw materials inside are smoothly mixed, thereby reducing the possibility that the drive assembly 3 is stuck inside the mixing drum 2 due to the jamming of the raw materials and thus the drive assembly 3 can stably drive the mixing drum 2 in the later stage;

[0029] Through the interference between the fixed ring 21 and the guide ring 33, when the reciprocating screw 31 rotates, the vertical direction of the connection between the mixing cylinder 2 and the guide ring 33 can be guided by the interference between the two. Therefore, when the guide ring 33 moves in the vertical direction with the reciprocating screw 31, the guide ring 33 can smoothly drive the mixing cylinder 2 to move synchronously, thereby separating the mixing cylinder 2 from the mixing component 5, and making it easier for the staff to clean the outer wall of the mixing component 5 and the inner wall of the mixing cylinder 2 later.

[0030] In the embodiments of the present invention, please refer to Figures 1 to 5The mixing assembly 5 includes a plurality of toggle bars 52 and toggle pieces 521 for mixing the raw materials. The top of the mixing drum 2 is sleeved with a top cover 4, and the inner wall of the top cover 4 is against and slidably connected to the top of the mixing drum 2. The outer wall of the top cover 4 is provided with a fixedly connected mounting bracket 41, which is fixedly connected to the frame body 1, and a feeding pipe 42 connected to the interior of the top cover 4 is fixedly installed. The mixing assembly 5 also includes a hydraulic cylinder 51, which is fixedly installed on the top of the top cover 4. The top of the hydraulic cylinder 51 is equipped with a linkage plate 511 with the same fixed connection, and the bottom of the linkage plate 511 is fixedly connected to the top of the toggle bar 52, the outer wall of the toggle bar 52 is against and slidably connected to the inner wall of the top cover 4, and the outer wall of the toggle bar 52 is fixedly connected to the toggle piece 521. A fixedly connected scraping bar 53 is installed on the outer wall of the toggle bar 52, and the outer wall of the scraping bar 53 is against and slidably connected to the inner wall of the mixing drum 2.

[0031] It should be noted that the scraper 53 in the mixing component 5 is arranged so that when in use, the rotating scraper 53 in the mixing component 5 can scrape the raw materials on the inner wall of the mixing barrel 2 by abutting against the inner wall of the mixing barrel 2, thereby reducing the residual raw materials on the inner wall of the mixing barrel 2 during mixing, and then when the profile adjusting agent is discharged later, the discharge of the profile adjusting agent can also be made cleaner.

[0032] The working principle of the oilfield water injection profile control agent mixing device provided by the utility model is as follows:

[0033] When using the device, the staff can first add the raw materials required for the profile control agent into the interior of the mixing drum 2 through the feeding pipe 42. After the raw materials are added, the rotating motor 34 in the driving assembly 3 can be controlled to work, and the working rotating motor 34 can drive the driving gear 341 to rotate;

[0034] The rotating driving gear 341 can drive the linkage ring 35 and its mixing drum 2 to rotate by meshing with the linkage teeth 351. At this time, the centrifugal force of the rotating mixing drum 2 can drive the raw materials inside to rotate. At this time, the rotating raw materials can block the turbulence of the raw materials' rotation trajectory by abutting against the internal toggle bar 52 and the toggle piece 521, thereby achieving mixing and stirring of the raw materials.

[0035] During this process, the hydraulic cylinder 51 can also be controlled to extend and retract. The extending hydraulic cylinder 51 can drive the toggle bar 52 and the toggle piece 521 to swing up and down through the linkage plate 511, thereby helping to improve the mixing effect of the raw materials.

[0036] After the mixing and preparation of the raw materials is completed in the later stage, the end cover at the bottom of the mixing drum 2 can be opened to discharge the profile control agent outward. During this process, the mixing drum 2 can also be controlled to rotate. At this time, the inner wall of the rotating mixing drum 2 can be abutted against the outer wall of the scraper 53 to scrape off the residual profile control agent on the inner wall of the mixing drum 2, thereby reducing the residual profile control agent and making the discharge of the profile control agent smoother.

[0037] After the discharge of the profile adjusting agent is completed in the later stage, the staff can also control the reciprocating screw 31 to rotate. The rotating reciprocating screw 31 can drive the guide ring 33 and the mixing barrel 2 inside it to move downward through the threaded structure, thereby separating the mixing barrel 2 from the mixing component 5, which makes it easier for the staff to clean the inner wall of the mixing barrel 2 and the outer wall of the components in the mixing component 5 in the later stage.

[0038] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0039] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oilfield water injection profile control agent mixing device, characterized in that: include: A frame (1), wherein a movably connected mixing drum (2) is provided in the frame (1), a driving assembly (3) for driving the mixing drum (2) is provided in the frame (1), and a mixing assembly (5) for mixing raw materials is provided on the mixing drum (2); The driving assembly (3) comprises a reciprocating screw (31) and a guide rod (32), wherein the reciprocating screw (31) is rotatably mounted on one side of the frame (1), and the guide rod (32) is fixedly mounted on the other side of the frame (1), and a movably connected guide ring (33) is provided between the reciprocating screw (31) and the guide rod (32), wherein the inner wall of the guide ring (33) abuts against and is rotatably connected to the outer wall of the mixing barrel (2); The mixing assembly (5) comprises a plurality of toggling bars (52) and toggling pieces (521) for mixing raw materials.

2. The oilfield water injection profile control agent mixing device according to claim 1, characterized in that: A fixedly connected rotating motor (34) is mounted on the guide ring (33), and a fixedly connected driving gear (341) is mounted on the output end of the rotating motor (34). A fixedly connected linkage ring (35) is sleeved on the outer wall of the mixing barrel (2), and a plurality of annularly distributed linkage teeth (351) are fixedly mounted on the outer wall of the linkage ring (35), and the linkage teeth (351) are meshedly connected to the driving gear (341).

3. The oilfield water injection profile control agent mixing device according to claim 2, characterized in that: A fixed ring (21) is sleeved on a portion of the outer wall of the mixing cylinder (2) facing the guide ring (33), and the outer wall of the fixed ring (21) abuts against and is slidably connected to the inner wall of the guide ring (33).

4. The oilfield water injection profile control agent mixing device according to claim 3, characterized in that: The top of the mixing barrel (2) is sleeved with a top cover (4), the inner wall of the top cover (4) abuts against and is slidably connected to the top of the mixing barrel (2), the outer wall of the top cover (4) is provided with a fixedly connected mounting frame (41), the mounting frame (41) is fixedly connected to the frame body (1), and a feeding pipe (42) is fixedly installed inside the top cover (4) and is in communication with the interior thereof.

5. The oilfield water injection profile control agent mixing device according to claim 4, characterized in that: The mixing assembly (5) further comprises a hydraulic cylinder (51), wherein the hydraulic cylinder (51) is fixedly mounted on the top of the top cover (4), a linkage plate (511) fixedly connected thereto is mounted on the top of the hydraulic cylinder (51), and the bottom of the linkage plate (511) is fixedly connected to the top of the toggle bar (52).

6. The oilfield water injection profile control agent mixing device according to claim 5, characterized in that: The outer wall of the toggle bar (52) abuts against and is slidably connected to the inner wall of the top cover (4), the outer wall of the toggle bar (52) is fixedly connected to the toggle piece (521), a scraper bar (53) is fixedly mounted on the outer wall of the toggle bar (52), and the outer wall of the scraper bar (53) abuts against and is slidably connected to the inner wall of the mixing barrel (2).

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