Horizontal well stratum permeability test model

Abstract

The utility model provides a horizontal well formation permeability test model which comprises a supporting frame, an actual formation model test box is installed on the top of the supporting frame, and a horizontal well is arranged in the actual formation model test box in a simulated mode. The tail end of the outer pipe is fixedly communicated with the tail end of the horizontal well; the adjusting mechanism is mounted on the surface of the top side of the actual stratum model test box; the pulling assembly is mounted at the tail end of the outer pipe; and the cleaning mechanism is installed in an inner cavity of the outer pipe, and the cleaning mechanism is arranged between the adjusting mechanism and the pulling assembly. Under the action of the arranged cleaning mechanism, the cleaning effect of the inner cavity of the horizontal well is effectively improved, follow-up test operation of the horizontal well is guaranteed, meanwhile, guide wheels are used for guiding, stable cleaning of the inner cavity of the horizontal well is effectively improved, the cleaning effect is improved, the service time of a follow-up actual stratum model test box is guaranteed, and the test accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of experimental model technology, and is a horizontal well formation permeability test model. Background Technology

[0002] A horizontal well formation refers to the part of the formation traversed by the wellbore trajectory during the drilling process of a horizontal well. Unlike traditional vertical wells, the wellbore of a horizontal well extends horizontally within the target formation, increasing the contact area with the reservoir and thus significantly improving the recovery rate of oil and gas. Horizontal well formation permeability test models are important tools for studying the flow characteristics of formation fluids and changes in permeability under horizontal well conditions.

[0003] In existing actual formation model test chambers, impurities tend to accumulate inside the simulated horizontal wellbore during long-term use, leading to blockages in subsequent horizontal wellbore processes. This affects the formation permeability of the horizontal well, reduces the service life of the actual formation model test chamber, and also impacts the accuracy of the tests. Utility Model Content

[0004] This invention addresses the technical problem that existing actual formation model test chambers tend to accumulate impurities inside the simulated horizontal wellbore during prolonged use, leading to blockages in subsequent horizontal wells, affecting horizontal well formation permeability, reducing the lifespan of subsequent actual formation model test chambers, and impacting test accuracy. Therefore, this invention provides a horizontal well formation permeability test model.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a horizontal well formation permeability test model, which includes:

[0007] A support frame, on top of which is mounted an actual formation model test chamber, and inside the actual formation model test chamber, a horizontal wellbore is simulated;

[0008] The outer pipe, the end of which is fixedly connected to the end of the horizontal wellbore;

[0009] The adjustment mechanism is installed on the top side surface of the actual geological model test chamber;

[0010] A pulling assembly, which is installed at the end of the outer tube;

[0011] A cleaning mechanism is installed inside the outer tube and is used for brushing the inner cavity of the horizontal well. The cleaning mechanism is located between the adjustment mechanism and the pulling assembly.

[0012] Furthermore, the support frame includes a base, a support seat, and a drag seat. The support seat is fixedly connected to the top side of the base, and the drag seat is fixedly connected to the top of the support seat. An actual geological model test box is installed on the top side of the drag seat.

[0013] Furthermore, the outer pipe includes a main pipe and a discharge pipe. The main pipe is fixedly connected to the end of the horizontal well. The discharge pipe is fixedly connected to the bottom side of the main pipe. A collection shell is provided at the end of the discharge pipe. A placement seat installed on the top side of the base is provided on the bottom side of the collection shell.

[0014] Furthermore, the adjustment mechanism includes a support platform, a guide cylinder, a handle, and a pull rope. The support platform is fixedly installed on the top side of the actual geological model test chamber. A guide cylinder is installed on the top side of the support platform. A pull rope passes through the inner cavity of the guide cylinder. A handle is fixedly connected to the top of the pull rope.

[0015] Furthermore, the pulling assembly includes a placement shell, a pulling plate, and a pulling rope. The placement shell is threaded onto the end of the outer tube, and the pulling rope is placed inside the placement shell. The end of the pulling rope is fixedly connected to the pulling plate, and the pulling plate is engaged with the right end of the placement shell.

[0016] Furthermore, the cleaning mechanism includes a motor housing, a cleaning component, and a guide component. The cleaning component is installed inside the motor housing, and the guide component is installed on the right side of the motor housing.

[0017] Furthermore, the cleaning assembly includes a cleaning motor, a rotating base, a connecting column, and a cleaning brush. The cleaning motor is installed inside a motor housing. The output end of the cleaning motor is connected to the rotating base. The side surface of the rotating base is fixedly connected to the connecting column. The end of the connecting column is fixedly connected to a cleaning brush that fits against the inner wall of the horizontal well.

[0018] Furthermore, a rotating shaft is rotatably connected to the left side surface of the rotating seat, and the left end of the rotating shaft is fixedly connected to the end of the pull rope.

[0019] Furthermore, the guiding assembly includes a threaded post, a push seat, a support rod, a support plate, and a guide wheel. The threaded post is rotatably connected to the right side of the motor housing. The push seat is threaded onto the surface of the threaded post. The end of the threaded post is fixedly connected to the end of the pulling rope. The left end of the support plate is rotatably connected to the right end of the motor housing. The guide wheel is rotatably connected to the right end of the support plate. The side surface of the support plate is connected to the push seat through the support rod.

[0020] Furthermore, there are several support plates, which are arranged in a ring on the right end of the motor housing. The left end of each support plate is connected to the motor housing via a shaft. The bottom side of each support plate is connected to one end of a support rod via a first hinge, and the other end of the support rod is hinged to the side surface of the push seat via a second hinge.

[0021] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0022] The positive and progressive effects of this utility model are as follows:

[0023] The aforementioned horizontal well formation permeability test model, through the action of a cleaning mechanism, uses a threaded column to move a pusher seat, which in turn moves a support rod to move a support plate. The support plate then drives a guide wheel to roll and fit against the inner cavity of the horizontal well. An adjustment mechanism moves the cleaning mechanism, and a cleaning motor drives a rotating seat to rotate. The rotating seat rotates a connecting column fixed to the side surface, which in turn rotates a cleaning brush fixedly connected to the side surface. The cleaning brush cleans the inner cavity of the horizontal well, effectively improving the cleaning effect and ensuring subsequent test operations. Simultaneously, the guide wheel guides the process, effectively improving the stability of the cleaning process, enhancing the cleaning effect, ensuring the usability of the subsequent actual formation model test chamber, and improving test accuracy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.

[0025] Figure 1 This is a three-dimensional structural diagram of the experimental model of this utility model.

[0026] Figure 2 This is a frontal cross-sectional view of the experimental model of this utility model.

[0027] Figure 3 This is the experimental model of the present invention. Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Support frame; 11. Base; 12. Support seat; 13. Support bracket;

[0030] 2. Actual geological model test chamber;

[0031] 3. External pipe; 31. Main pipe; 32. Discharge pipe;

[0032] 4. Adjustment mechanism; 41. Support platform; 42. Guide cylinder; 43. Handle; 44. Pull rope;

[0033] 5. Pull assembly; 51. Placement shell; 52. Pull plate; 53. Pull rope;

[0034] 6. Cleaning mechanism; 61. Rotating shaft; 62. Rotating seat; 63. Connecting column; 64. Cleaning brush; 65. Motor housing; 66. Cleaning motor; 67. Guide assembly; 671. Threaded column; 672. Push seat; 673. Support rod; 674. Support plate; 675. Guide wheel;

[0035] 7. Collect the shell;

[0036] 8. Placement base;

[0037] 9. Horizontal shaft. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0044] like Figure 1-3 As shown, the horizontal well formation permeability test model includes:

[0045] Support frame 1, with an actual formation model test box 2 installed on the top of the support frame 1, and a horizontal wellbore 9 simulated inside the actual formation model test box 2;

[0046] Outer pipe 3, the end of which is fixedly connected to the end of horizontal well 9;

[0047] Adjustment mechanism 4 is installed on the top side surface of the actual geological model test chamber 2;

[0048] Pulling component 5, which is installed at the end of the outer tube 3;

[0049] The cleaning mechanism 6 is installed inside the outer tube 3 and is used for brushing the inner cavity of the horizontal well 9. The cleaning mechanism 6 is located between the adjusting mechanism 4 and the pulling component 5.

[0050] The support frame 1 includes a base 11, a support seat 12 and a drag seat 13. The support seat 12 is fixedly connected to the top side of the base 11, and the drag seat 13 is fixedly connected to the top of the support seat 12. The actual geological model test box 2 is installed on the top side of the drag seat 13.

[0051] The outer pipe 3 includes a main pipe 31 and a discharge pipe 32. The main pipe 31 is fixedly connected to the end of the horizontal well 9. The discharge pipe 32 is fixedly connected to the bottom side of the main pipe 31. A collection shell 7 is provided at the end of the discharge pipe 32. A placement seat 8 installed on the top side of the base 11 is provided on the bottom side of the collection shell 7.

[0052] The permeated liquid is discharged through the discharge pipe 32 via the main pipe 31, which facilitates the collection shell 7 to collect the permeated liquid for later use. During the cleaning process, the impurities are discharged through the discharge pipe 32.

[0053] The adjustment mechanism 4 includes a support platform 41, a guide cylinder 42, a handle 43, and a pull rope 44. The support platform 41 is fixedly installed on the top side of the actual geological model test box 2. The guide cylinder 42 is installed on the top side of the support platform 41. The pull rope 44 passes through the inner cavity of the guide cylinder 42. The handle 43 is fixedly connected to the top of the pull rope 44.

[0054] The handle 43 drives the fixedly connected pull rope 44 to move, and the pull rope 44 drives the fixedly connected cleaning mechanism 6 to move. The guide tube 42 guides the cleaning mechanism 6 to clean the impurities accumulated in the horizontal well 9. When the adjustment mechanism 4 is pulled, water is injected into the inner cavity of the horizontal well 9 to help flush away the cleaned impurities and improve the cleaning effect.

[0055] The pulling assembly 5 includes a housing 51, a pulling plate 52, and a pulling rope 53. The housing 51 is threaded onto the end of the outer tube 3. The pulling rope 53 is placed inside the housing 51. The end of the pulling rope 53 is fixedly connected to the pulling plate 52. The pulling plate 52 is engaged with the right end of the housing 51.

[0056] After the adjustment mechanism 4 moves the cleaning mechanism 6 to the left end of the horizontal shaft 9, it is pulled in the opposite direction by the pulling component 5, which facilitates the cleaning of the horizontal shaft 9 and the subsequent reset of the cleaning mechanism 6.

[0057] The cleaning mechanism 6 includes a motor housing 65, a cleaning component, and a guide component 67. The cleaning component is installed inside the motor housing 65, and the guide component 67 is installed on the right side of the motor housing 65.

[0058] The cleaning assembly includes a cleaning motor 66, a rotating base 62, a connecting column 63, and a cleaning brush 64. The cleaning motor 66 is installed inside a motor housing 65. The output end of the cleaning motor 66 is connected to the rotating base 62. The connecting column 63 is fixedly connected to the side surface of the rotating base 62. The end of the connecting column 63 is fixedly connected to a cleaning brush 64 that fits against the inner wall of the horizontal wellbore 9.

[0059] A rotating shaft 61 is rotatably connected to the left side surface of the rotating seat 62, and the left end of the rotating shaft 61 is fixedly connected to the end of the pull rope 44.

[0060] The guide assembly 67 includes a threaded post 671, a push seat 672, a support rod 673, a support plate 674, and a guide wheel 675. The threaded post 671 is rotatably connected to the right side of the motor housing 65. The push seat 672 is threaded onto the surface of the threaded post 671. The end of the threaded post 671 is fixedly connected to the end of the pull rope 53. The left end of the support plate 674 is rotatably connected to the right end of the motor housing 65. The guide wheel 675 is rotatably connected to the right end of the support plate 674. The side surface of the support plate 674 is connected to the push seat 672 through the support rod 673.

[0061] During the cleaning of the inner cavity of the horizontal wellbore 9, the placement shell 51 is disassembled, the threaded column 671 drives the push seat 672 to move, the push seat 672 drives the support rod 673 to push the support plate 674 to move, and the support plate 674 drives the guide wheel 675 to roll and fit against the inner cavity of the horizontal wellbore 9. Then, the adjustment mechanism 4 drives the cleaning mechanism 6 to move, the cleaning motor 66 drives the rotating seat 62 to rotate, the rotating seat 62 drives the connecting column 63 fixedly connected to the side surface to rotate, and the connecting column 63 drives the fixedly connected cleaning brush 64 to rotate. The cleaning brush 64 cleans the inner cavity of the horizontal wellbore 9, effectively improving the cleaning effect of the inner cavity of the horizontal wellbore 9 and ensuring the subsequent test operation of the horizontal wellbore 9. At the same time, the guide wheel 675 guides and effectively improves the stability of the cleaning of the inner cavity of the horizontal wellbore 9, improving the cleaning effect.

[0062] The number of support plates 674 is several, and the several support plates 674 are distributed in a ring at the right end of the motor housing 65. The left end of the support plate 674 is connected to the motor housing 65 by a shaft. The bottom side of the support plate 674 is connected to one end of the support rod 673 by a first hinge. The other end of the support rod 673 is hinged to the side surface of the push seat 672 by a second hinge.

[0063] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0064] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A horizontal well formation permeability test model, characterized in that, The horizontal well formation permeability test model includes: A support frame (1) is provided, and an actual formation model test box (2) is installed on the top of the support frame (1). A horizontal wellbore (9) is simulated inside the actual formation model test box (2). The outer pipe (3) is fixedly connected at its end to the end of the horizontal wellbore (9); Adjustment mechanism (4), said adjustment mechanism (4) is installed on the top side surface of the actual stratum model test box (2); A pulling assembly (5) is installed at the end of the outer tube (3); A cleaning mechanism (6) is installed in the inner cavity of the outer tube (3). The cleaning mechanism (6) is used to clean the inner cavity of the horizontal well (9). The cleaning mechanism (6) is provided between the adjustment mechanism (4) and the pulling component (5).

2. The horizontal well formation permeability test model as described in claim 1, characterized in that: The support frame (1) includes a base (11), a support seat (12) and a drag seat (13). The support seat (12) is fixedly connected to the top side of the base (11), and the drag seat (13) is fixedly connected to the top of the support seat (12). An actual geological model test box is installed on the top side of the drag seat (13).

3. The horizontal well formation permeability test model as described in claim 1, characterized in that: The outer pipe (3) includes a main pipe (31) and a discharge pipe (32). The main pipe (31) is fixedly connected to the end of the horizontal well (9). The discharge pipe (32) is fixedly connected to the bottom side of the main pipe (31). A collection shell (7) is provided at the end of the discharge pipe (32). A placement seat (8) installed on the top side of the base (11) is provided on the bottom side of the collection shell (7).

4. The horizontal well formation permeability test model as described in claim 1, characterized in that: The adjustment mechanism (4) includes a support platform (41), a guide cylinder (42), a handle (43), and a pull rope (44). The support platform (41) is fixedly installed on the top side of the actual geological model test box (2). The guide cylinder (42) is installed on the top side of the support platform (41). The pull rope (44) passes through the inner cavity of the guide cylinder (42). The handle (43) is fixedly connected to the top of the pull rope (44).

5. The horizontal well formation permeability test model as described in claim 1, characterized in that: The pulling assembly (5) includes a placement shell (51), a pulling plate (52), and a pulling rope (53). The placement shell (51) is threaded onto the end of the outer tube (3). The pulling rope (53) is placed inside the placement shell (51). The end of the pulling rope (53) is fixedly connected to the pulling plate (52). The pulling plate (52) is engaged with the right end of the placement shell (51).

6. The horizontal well formation permeability test model as described in claim 1, characterized in that: The cleaning mechanism (6) includes a motor housing (65), a cleaning component, and a guide component (67). The cleaning component is installed inside the motor housing (65), and the guide component (67) is installed on the right side of the motor housing (65).

7. The horizontal well formation permeability test model as described in claim 6, characterized in that: The cleaning assembly includes a cleaning motor (66), a rotating seat (62), a connecting column (63), and a cleaning brush (64). The cleaning motor (66) is installed inside a motor housing (65). The output end of the cleaning motor (66) is connected to the rotating seat (62). The side surface of the rotating seat (62) is fixedly connected to the connecting column (63). The end of the connecting column (63) is fixedly connected to the cleaning brush (64) which fits against the inner wall of the horizontal wellbore (9).

8. The horizontal well formation permeability test model as described in claim 7, characterized in that: The rotating seat (62) has a rotating shaft (61) rotatably connected to its left side surface, and the left end of the rotating shaft (61) is fixedly connected to the end of the pull rope (44).

9. The horizontal well formation permeability test model as described in claim 6, characterized in that: The guide assembly (67) includes a threaded post (671), a push seat (672), a support rod (673), a support plate (674), and a guide wheel (675). The threaded post (671) is rotatably connected to the right side of the motor housing (65). The push seat (672) is threaded onto the surface of the threaded post (671). The end of the threaded post (671) is fixedly connected to the end of the pull rope (53). The left end of the support plate (674) is rotatably connected to the right end of the motor housing (65). The right end of the support plate (674) is rotatably connected to the guide wheel (675). The side surface of the support plate (674) is connected to the push seat (672) through the support rod (673).

10. The horizontal well formation permeability test model as described in claim 9, characterized in that: The number of support plates (674) is several, and the support plates (674) are distributed in a ring on the right end of the motor housing (65). The left end of the support plate (674) is connected to the motor housing (65) by a shaft. The bottom side of the support plate (674) is connected to one end of the support rod (673) by a first hinge. The other end of the support rod (673) is hinged to the side surface of the push seat (672) by a second hinge.

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