Pipeline mixer
By designing a pipeline mixer with no shrinkage segment and using dynamic and static mixing components, the problem of back pressure rise in the existing technology is solved, uniform mixing of oil well production fluid and increasing flow rate, and economic benefits of the oil field are improved.
Patent Information
- Application Number
- CN202422153001.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing pipeline mixers in the oil field have increased back pressure due to the internal shrinkage section, which affects the oil well production capacity, especially the heavy oil wells, resulting in unstable production.
A pipeline mixer without shrinkage segments is designed, using dynamic mixing components and static mixing components, including brackets, support shafts and four-blade propellers, and SK-type spiral blades, to achieve uniform mixing of oil well production fluids and control through dosing and sampling components.
The full mixing of oil well production fluid is achieved, the flow rate is increased, the return pressure rise is reduced, the pressure drop loss is eliminated, and the economic benefits of the oil field are improved.
Smart Images
Figure CN223082595U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fluid mixing devices, and particularly relates to a pipeline mixer. Background Art
[0002] In oilfield production, in order to master the true situation such as the comprehensive water cut of the produced fluid from oil wells, it is necessary to install a pipeline mixer on the backpressure pipeline. One of the purposes is to obtain a uniformly mixed and representative sample. There is generally a reduced diameter section in the pipeline mixers used in the oilfield site. When the produced fluid from the oil well flows through the pipeline mixer on the backpressure pipeline, throttling is likely to occur due to the reduced diameter structure inside the pipeline mixer, resulting in varying degrees of increase in backpressure, affecting the full play of the oil well productivity, especially obvious in viscous oil wells. In some viscous oil wells, the pipeline mixer cannot even be installed. This structural defect of the existing pipeline mixer has imposed certain restrictions on the smooth production of the oilfield. How to overcome this defect to achieve the smooth and stable progress of oilfield operations and improve the economic benefits of the oilfield has become an urgent technical problem to be solved. Summary of the Utility Model
[0003] In order to solve some or all of the problems existing in the prior art, the utility model provides a pipeline mixer.
[0004] The pipeline mixer includes:
[0005] A pipeline body; and
[0006] A mixing part, which is arranged inside the pipeline body and includes a dynamic mixing component and a static mixing component.
[0007] Wherein, the internal structure of the pipeline body is a structure without a reduced diameter section.
[0008] As an extension of the above technical solution, the utility model also provides the following embodiments:
[0009] The dynamic mixing component includes no less than two brackets configured to be fixedly connected to the inner wall of the pipeline body, a support shaft arranged between the brackets, and a four-blade propeller sleeved on the support shaft.
[0010] The static mixing component includes SK-type spiral blades arranged inside the pipeline body.
[0011] The pipeline body includes a dynamic mixing section and a static mixing section configured to be connected to each other. The dynamic mixing component is arranged inside the dynamic mixing section, and the static mixing component is arranged inside the static mixing section.
[0012] A first clamp head is connected and arranged at the free end of the dynamic mixing section.
[0013] A second clamp head is connected and arranged at the free end of the static mixing section.
[0014] The dynamic mixing component is located upstream of the static mixing component. A chemical dosing component is connected and arranged at a position on the side wall of the pipeline body upstream of the dynamic mixing component.
[0015] The chemical dosing component includes a chemical dosing pipe configured to communicate with the pipeline body and a chemical dosing valve arranged on the chemical dosing pipe.
[0016] A sampling component is connected and arranged at a position on the side wall of the pipeline body downstream of the static mixing component.
[0017] The sampling component includes a sampling pipe configured to communicate with the pipeline body and a sampling valve arranged on the sampling pipe.
[0018] The advantages of the present utility model compared with the prior art are as follows:
[0019] By constructing the pipeline body into a structure without a reduced-diameter section inside and the design of the mixing part, while meeting the requirement of fully mixing the produced fluid from the oil well to achieve the sampling requirement, the flow rate of the produced fluid from the oil well inside the pipeline body is increased, the back pressure will not rise, the pressure drop loss is reduced, and to a great extent, the problem of affecting the oil well production caused by the pipeline mixer is eliminated, improving the economic benefit of the oil field. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic structural diagram of the pipeline mixer according to the present utility model;
[0021] Figure 2 It is a schematic cross-sectional view of the bracket in the axial direction perpendicular to the pipeline body;
[0022] Figure 3 It is a schematic cross-sectional view of the four-blade propeller in the axial direction perpendicular to the pipeline body.
[0023] All the drawings in the present utility model are schematic diagrams for explaining the structure and principle, and are not necessarily drawn according to the actual size and proportion.
[0024] The specific meanings of the reference numerals in the drawings are as follows:
[0025] 1. Pipe body; 11. Dynamic mixing section; 12. Static mixing section; 2. Mixing part; 21. Dynamic mixing component; 211. Bracket; 212. Support shaft; 213. Four-blade propeller; 22. Static mixing component; 221. SK-type spiral blade; 3. First clamp head; 4. Second clamp head; 5. Chemical dosing component; 51. Chemical dosing pipe; 52. Chemical dosing valve; 6. Sampling component; 61. Sampling pipe; 62. Sampling valve; 7. Connecting flange; 100. Pipe mixer. Detailed implementation mode
[0026] The present utility model will be described in more detail below with reference to the accompanying drawings.
[0027] Figure 1 It is a schematic structural diagram of a pipe mixer 100 according to the present utility model. As shown in the figure, the pipe mixer 100 includes a pipe body 1 and a mixing part 2. The pipe body 1 is configured as a tubular structure, and the mixing part 2 is arranged inside the pipe body 1, including a dynamic mixing component 21 and a static mixing component 22, and the interior of the pipe body 1 is configured as a structure without a reduced-diameter section, that is, the inner diameter of the pipe body 1 remains uniform in its axial direction.
[0028] During specific operation, the staff installs the pipe mixer 100 on a back-pressure pipeline (not shown), and then the produced fluid from the oil well flows into the pipe mixer 100 through the back-pressure pipeline. The produced fluid from the oil well is uniformly mixed under the action of the dynamic mixing component 21 and the static mixing component 22. After that, the staff can sample and analyze the mixed produced fluid from the oil well.
[0029] Through this design, on the premise of meeting the requirement of uniformly mixing the produced fluid from the oil well, during the mixing process of the produced fluid from the oil well through the pipe mixer 100, since the interior of the pipe body 1 is configured as a structure without a reduced-diameter section, the flow rate of the produced fluid from the oil well inside the pipe body 1 is increased, the back-pressure will not rise, the pressure drop loss is reduced, and thus the adverse effect on the oil well production capacity caused by the structure of the pipe mixer 100 is eliminated, improving the economic benefit of oilfield operation.
[0030] Such as Figures 1 to 3As shown, in some embodiments of the present invention, the dynamic mixing component 21 includes no less than two brackets 211 configured to be connected to the inner wall of the pipeline body 1, a support shaft 212 disposed between the brackets 211, and a four-blade propeller 213 sleeved on the support shaft 212. During specific operation, when the produced fluid from the oil well flows through the four-blade propeller 212 inside the pipeline body 1, it will push the four-blade propeller 212 to rotate, thereby dynamically mixing the produced fluid from the oil well. It is easy to understand that within a certain range, the more the number of four-blade propellers 212, the more levels of mixing the dynamic mixing component 21 can perform on the produced fluid from the oil well, and thus a better mixing effect can be achieved.
[0031] Preferably, the number of brackets 211 is two, the four-blade propellers 213 are all between the two brackets 211, and the number of four-blade propellers 213 is three.
[0032] As Figure 1 shown, in some embodiments of the present invention, the static mixing component 22 includes SK-type spiral blades 221 disposed inside the pipeline body 1. The torsion angle of the SK-type spiral blades 221 is 180°. Each single SK-type spiral blade 221 further includes a left-handed part and a right-handed part, and the left-handed part and the right-handed part are arranged alternately and staggeredly by 90° inside the pipeline body 1, and multiple SK-type spiral blades 221 are connected end to end alternately. When the produced fluid from the oil well flows through the SK-type spiral blades 221, it will be continuously cut by the SK-type spiral blades. At the same time, due to the certain torsion angle of the SK-type spiral blades 221, the flow direction of the produced fluid from the oil well is forced to change continuously, generating convection and vortex motions. This continuous change in the fluid direction and the cutting action of the internal structure cause the divided produced fluid from the oil well to converge between two SK-type spiral blades 221, thereby realizing the uniform mixing of the produced fluid from the oil well. It is easy to understand that within a certain range, the more the number of SK-type spiral blades 221, the better the mixing effect of the produced fluid from the oil well. In addition, the specific structure of the SK-type spiral blades 221 is well known to those skilled in the art and will not be described in more detail here.
[0033] Preferably, the number of SK-type spiral blades 221 is three.
[0034] Preferably, in order to enable the SK-type spiral blades to stably maintain a stationary state during the mixing process, the SK-type spiral blades are fixedly connected to the inner wall of the pipeline body 1.
[0035] As Figure 1As shown, in some embodiments of the present utility model, the pipeline body 1 includes a dynamic mixing section 11 and a static mixing section 12. Both the dynamic mixing section 11 and the static mixing section 12 are configured as tubular structures with uniform inner diameters and are connected to each other. The dynamic mixing assembly 21 is disposed inside the dynamic mixing section 11, and the static mixing assembly 22 is disposed inside the static mixing section 12. This design makes the pipeline body 1 configured as a combined structure, thus helping to reduce the manufacturing difficulty of the pipeline mixer 100.
[0036] Preferably, the dynamic mixing section 11 and the static mixing section 12 are connected to each other through a connecting flange 7.
[0037] As Figure 1 shown, in some embodiments of the present utility model, in order to facilitate the installation of the pipeline mixer 100 on the backpressure pipeline, a first clamp head 3 is connected and provided at the free end of the dynamic mixing section 11.
[0038] Preferably, the first clamp head 3 is welded to the free end of the dynamic mixing section 11.
[0039] As Figure 1 shown, in some embodiments of the present utility model, in order to facilitate the installation of the pipeline mixer 100 on the backpressure pipeline, a second clamp head 4 is connected and provided at the free end of the static mixing section 12.
[0040] Preferably, the second clamp head 4 is welded to the free end of the static mixing section 12.
[0041] As Figure 1 shown, in some embodiments of the present utility model, the dynamic mixing assembly 21 is located upstream compared to the static mixing assembly 22. A chemical addition assembly 5 is connected and provided at a position on the side wall of the pipeline body 1 upstream of the dynamic mixing assembly 21, so as to facilitate the chemical addition operation for the oil well produced fluid or the later brine pressure washing operation.
[0042] Furthermore, in order to facilitate the control of operations such as chemical addition, the chemical addition assembly 5 includes a chemical addition pipe 51 configured to communicate with the pipeline body 1 and a chemical addition valve 52 provided on the chemical addition pipe 51.
[0043] Preferably, when the pipeline body 1 includes the dynamic mixing section 11 and the static mixing section 12, the chemical addition pipe 51 is communicated with the dynamic mixing section 11.
[0044] As Figure 1As shown, in some embodiments of the present utility model, the dynamic mixing component 21 is located upstream compared to the static mixing component 22. A sampling component 6 is connected and arranged at a position on the side wall of the pipeline body 1 downstream of the static mixing component 22, so as to facilitate the sampling operation of the produced fluid from the oil well or the later brine pressure washing operation.
[0045] Furthermore, in order to facilitate the control of operations such as sampling, the sampling component 6 includes a sampling pipe 61 configured to communicate with the pipeline body 1 and a sampling valve 62 provided on the sampling pipe 61.
[0046] Preferably, when the pipeline body 1 includes a dynamic mixing section 11 and a static mixing section 12, the sampling pipe 61 is communicatively arranged with the static mixing section 12.
[0047] In an embodiment of the present utility model, the length of the pipeline mixer 100 is 1330 mm, the outer diameter of the pipeline body 1 is 88.9 mm, the inner diameter is 76 mm, the length of the dynamic mixing section is 665 mm, the length of the static mixing section is 665 mm, the length of the support shaft 212 is 380 mm, the shaft diameter is 10 mm, the number of brackets 211 is two, the distance between the bracket 211 and the four - blade propeller 213 as well as between different four - blade propellers 213 is 95 mm, the outer diameter of the bracket is 76 mm, the radius of a single four - blade propeller is 37 mm, the diameter of the SK - type spiral blade 221 is 76 mm, the distance between the chemical addition pipe 51 and the end face of the first clamp head 3 is 159 mm, the distance between the sampling pipe 61 and the end face of the second clamp head 4 is 159 mm, and the outer diameters of the first clamp head 3 and the second clamp head 4 are both 120 mm.
[0048] When the pipeline mixer 100 according to the present utility model is out of use for a long time, the inside should be flushed to prevent the viscous oil from solidifying at the mixing part 2 and avoid situations such as the rotation failure or mixing failure of the mixing part 2.
[0049] According to the pipeline mixer 100 of the present utility model, by constructing the pipeline body 1 into a structure without a reduced - diameter section inside and the design of the mixing part 2, while achieving sufficient mixing of the produced fluid from the oil well to meet the sampling requirements, the flow rate of the produced fluid from the oil well inside the pipeline body 1 is increased, the back pressure will not rise, the pressure drop loss is reduced, and to a great extent, the problem of affecting the oil well productivity caused by the structural reasons of the mixing device is eliminated, improving the economic benefits of oilfield operations.
[0050] In the present utility model, the "produced fluid from the oil well" refers to the liquid containing crude oil directly produced from the wellbore.
[0051] The orientation terms mentioned in the present utility model, such as "upper", "lower", "left", "right", "middle", "edge", "side surface", "top", "bottom", "front", "rear", etc., are only for reference to the Figure 1 direction of the
[0052] In the present utility model, the reference directions of terms such as "upstream" and "downstream" are the flowing directions of the oil well produced fluid in the pipeline body 1.
[0053] Finally, it should be noted that although the present utility model has been described in detail with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
Claims
1. A pipeline mixer, characterized in that, Comprising: A pipe body (1); And A mixing section (2), the mixing section (2) is arranged inside the pipe body (1), and includes a dynamic mixing component (21) and a static mixing component (22), Wherein, the internal structure of the pipe body (1) is a non-reduced-diameter section structure. The dynamic mixing component (21) includes no less than two brackets (211) configured to be fixedly connected to the inner wall of the pipe body (1), a support shaft (212) arranged between the brackets (211), and a four-blade propeller (213) sleeved on the support shaft (212). The static mixing component (22) includes an SK-type helical blade (221) arranged inside the pipe body (1).
2. The pipeline mixer according to claim 1, characterized in that: The pipe body (1) includes a dynamic mixing section (11) and a static mixing section (12) configured to be connected to each other. The dynamic mixing component (21) is arranged inside the dynamic mixing section (11), and the static mixing component (22) is arranged inside the static mixing section (12).
3. The pipeline mixer according to claim 2, wherein: A first clamp head (3) is connected and arranged at the free end of the dynamic mixing section (11).
4. The pipe mixer according to claim 3, characterized in that: A second clamp head (4) is connected and arranged at the free end of the static mixing section (12).
5. The pipeline mixer according to any one of claims 1 to 4, characterized in that: The dynamic mixing component (21) is in an upstream position compared to the static mixing component (22). A chemical dosing component (5) is connected and arranged at a position on the side wall of the pipe body (1) upstream of the dynamic mixing component (21).
6. The pipe mixer according to claim 5, characterized in that: The chemical dosing component (5) includes a chemical dosing pipe (51) configured to be communicated with the pipe body (1) and a chemical dosing valve (52) arranged on the chemical dosing pipe (51).
7. The pipe mixer according to claim 6, wherein: A sampling component (6) is connected and arranged at a position on the side wall of the pipe body (1) downstream of the static mixing component (22).
8. The pipe mixer according to claim 7, characterized in that: The sampling component (6) includes a sampling pipe (61) configured to be communicated with the pipe body (1) and a sampling valve (62) arranged on the sampling pipe (61).