Hydraulic control sliding sleeve capable of adjusting flow

Abstract

The hydraulic control sliding sleeve comprises a carbon alloy protective sleeve, the bottom of the carbon alloy protective sleeve is fixedly connected with a lower shell, the upper end of the carbon alloy protective sleeve is fixedly connected with an upper port, a communicating pipeline is installed in the middle of an inner cavity of the upper port, and a limiting block is installed at the bottom of the communicating pipeline; the lower end opening is formed in the bottom of the limiting block, the upper end of the lower end opening is sleeved with a spring, the upper end of the spring is connected with the limiting block, the bottom of the spring is connected with the lower shell, a hydraulic control shell is installed at the upper end of an inner cavity of the carbon alloy protection sleeve, and hydraulic mechanisms are installed between the front end and the rear end of the hydraulic control shell. And through the hydraulic mechanism, the liquid inlet speed in the hydraulic pipeline is increased conveniently, so that the liquid inlet flow of hydraulic oil of the device is adjusted, through the adjusting mechanism, vortex is formed in the carbon alloy protective sleeve conveniently, and then the flow of the hydraulic oil in the carbon alloy protective sleeve is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum engineering, in particular to a flow-adjustable hydraulic control sliding sleeve. Background Art

[0002] A hydraulic sliding sleeve is a device used in petroleum engineering, especially in drilling and completion operations. Its main function is to allow downhole equipment to be adjusted, making drilling operations more flexible and efficient.

[0003] However, during use, it is difficult to adjust the hydraulic oil flow inside the existing hydraulic control sleeve, which makes it impossible to maintain the stability of the wellbore and increases the risk of well wall collapse. Therefore, it is necessary to provide a new hydraulic control sleeve with adjustable flow to solve the above technical problems. Utility Model Content

[0004] The object of the present invention is to provide a flow-adjustable hydraulic control sleeve to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flow-adjustable hydraulic control sleeve, comprising: a carbon alloy protective sleeve, the bottom of which is fixedly connected to a lower shell, the upper end of which is fixedly connected to an upper port, a connecting pipe installed in the middle of an inner cavity of the upper port, and a limit block installed at the bottom of the connecting pipe;

[0006] The lower port is installed at the bottom of the limit block, the upper end of the lower port is sleeved with a spring, and the upper end of the spring is connected to the limit block, and the bottom of the spring is connected to the lower shell body. The upper end of the inner cavity of the carbon alloy protective sleeve is installed with a hydraulic control shell, and a hydraulic mechanism is installed in the middle of the front and rear ends of the hydraulic control shell. The upper right end of the carbon alloy protective sleeve is installed with an adjustment mechanism. By providing the hydraulic mechanism, it is convenient to increase the liquid inlet speed in the hydraulic pipeline, thereby adjusting the hydraulic oil inlet flow of the device. By providing the adjustment mechanism, it is convenient to form a vortex inside the carbon alloy protective sleeve, thereby realizing the adjustment of the hydraulic oil flow in the carbon alloy protective sleeve.

[0007] As a further description of the above technical solution: the hydraulic mechanism includes a hydraulic pipeline inserted in the middle of the front and rear ends of the hydraulic control housing, a connecting pipe is inserted on the side close to each other, a valve is installed in the middle of the rear end of the connecting pipe, and a boosting box is installed in the middle of the upper end of the connecting pipe. By providing a hydraulic pipeline, it is convenient to inject liquid into the interior of the device. When the liquid inlet speed in the hydraulic pipeline needs to be adjusted, after the hydraulic pipeline is injected into the boosting box, the valve is opened to allow the connecting pipe and the boosting box to pressurize the hydraulic pipeline, thereby accelerating the efficiency of liquid injection in the hydraulic pipeline.

[0008] As a further description of the above technical solution: the hydraulic control housing is provided with an installation groove adapted to the hydraulic pipeline and the connecting pipe, and the hydraulic control housing is provided with an installation groove adapted to the hydraulic pipeline and the connecting pipe, which facilitates the installation of the hydraulic pipeline and the connecting pipe.

[0009] As a further description of the above technical solution: the carbon alloy protective sleeve is provided with a liquid inlet compatible with the hydraulic pipeline and the booster box. The provision of the liquid inlet facilitates liquid injection into the interior of the device.

[0010] As a further description of the above technical solution: the adjusting mechanism includes a motor installed at the upper right end, the power output end of the motor is connected to a rotating rod, and the motor passes through the carbon alloy protective cover and the hydraulic control housing, the rotating rod is rotatably connected to the carbon alloy protective cover and the hydraulic control housing, the other end of the rotating rod is fixedly connected to a bevel gear, and a conical adjusting block is rotatably connected to the middle of the inner cavity of the hydraulic control housing, the upper surface of the conical adjusting block is installed with a bevel gear ring, and the outer surface of the conical adjusting block is equidistantly connected with a number of spiral strips, and the rotating rod and the bevel gear are driven by the motor to rotate, so that the conical adjusting block and the spiral strip are rotated, so that the internal hydraulic oil forms a vortex, which increases the flow resistance of the fluid when passing through the pipeline or valve, usually causing a decrease in flow rate, thereby effectively regulating the flow rate of this device.

[0011] As a further description of the above technical solution: the bevel gear is engaged with the bevel gear ring, and the bevel gear ring and the conical adjustment block are rotated when the bevel gear rotates through the engagement of the bevel gear and the bevel gear ring.

[0012] The utility model provides a flow-adjustable hydraulic control sleeve, which has the following beneficial effects:

[0013] 1. By setting up a hydraulic mechanism, when the liquid inflow speed in the hydraulic pipeline needs to be adjusted, after the hydraulic pipeline is filled with liquid in the booster box, the valve is opened to allow the connecting pipe and the booster box to boost the pressure in the hydraulic pipeline, thereby accelerating the liquid injection efficiency in the hydraulic pipeline;

[0014] 2. By setting up an adjustment mechanism, the motor drives the rotating rod and the bevel gear to rotate, thereby rotating the bevel gear ring, rotating the conical adjustment block and the spiral strip, and forming a vortex in the internal hydraulic oil, which increases the flow resistance of the fluid when passing through the pipe or valve, resulting in a decrease in flow, thereby effectively adjusting the flow of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a flow-adjustable hydraulic control sleeve proposed in the present invention;

[0016] Figure 2It is a schematic diagram of the structure analyzed in this utility model;

[0017] Figure 3 This is a structural diagram of the hydraulic mechanism in the utility model;

[0018] Figure 4 It is a structural diagram of the adjustment mechanism in the utility model.

[0019] Legend:

[0020] 1. Carbon alloy protective cover; 2. Lower shell; 3. Upper port; 4. Connecting pipe; 5. Limit block; 6. Lower port; 7. Spring; 8. Hydraulic control housing; 9. Hydraulic mechanism; 901. Hydraulic pipeline; 902. Connecting pipe; 903. Valve; 904. Booster box; 10. Adjustment mechanism; 1001. Motor; 1002. Rotating rod; 1003. Bevel gear; 1004. Conical adjustment block; 1005. Bevel gear ring; 1006. Spiral strip; 11. Liquid inlet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example 1, reference Figure 1 and Figure 2 The utility model discloses a flow-adjustable hydraulic control sleeve, which can solve the problem that the flow of hydraulic oil inside the hydraulic control sleeve is difficult to adjust during use, thereby failing to maintain the stability of the wellbore and increasing the risk of well wall collapse. The utility model comprises a carbon alloy protective sleeve 1, the bottom of the carbon alloy protective sleeve 1 is fixedly connected to a lower shell 2, the upper end of the carbon alloy protective sleeve 1 is fixedly connected to an upper port 3, a connecting pipe 4 is installed in the middle of the inner cavity of the upper port 3, and a limit block 5 is installed at the bottom of the connecting pipe 4;

[0023] The lower port 6 is installed at the bottom of the limit block 5, the upper end of the lower port 6 is sleeved with a spring 7, and the upper end of the spring 7 is connected to the limit block 5, and the bottom of the spring 7 is connected to the lower shell 2. The upper end of the inner cavity of the carbon alloy protective sleeve 1 is installed with a hydraulic control shell 8, and a hydraulic mechanism 9 is installed in the middle of the front and rear ends of the hydraulic control shell 8. The upper right end of the carbon alloy protective sleeve 1 is installed with an adjustment mechanism 10.

[0024] Working principle: The carbon alloy protective sleeve 1, the lower shell 2, the upper port 3 and the lower port 6 facilitate the sealing protection of the device. The connecting pipe 4 provides a channel for the flow of liquid inside the hydraulic control sleeve to ensure that the hydraulic oil can flow freely inside the sleeve. The limit block 5 and the spring 7 facilitate buffering the pressure generated by the lower port 6. The hydraulic control shell 8 facilitates the installation of the hydraulic mechanism 9. The hydraulic mechanism 9 facilitates increasing the liquid inlet speed in the hydraulic pipeline 901, thereby adjusting the hydraulic oil inlet flow of the device. The adjusting mechanism 10 facilitates the formation of vortexes inside the carbon alloy protective sleeve 1, thereby realizing the adjustment of the hydraulic oil flow in the carbon alloy protective sleeve 1.

[0025] Example 2, refer to Figure 2 、 Figure 3 and Figure 4 The present embodiment solves the problem that the flow of hydraulic oil in the hydraulic control sleeve is difficult to adjust during use, thereby failing to maintain the stability of the wellbore and increasing the risk of well wall collapse. The flow-adjustable hydraulic control sleeve also includes a hydraulic mechanism 9 including a hydraulic pipe 901 inserted in the middle of the front and rear ends of the hydraulic control housing 8, a connecting pipe 902 is inserted on one side of the hydraulic pipes 901 close to each other, a valve 903 is installed in the middle of the rear end of the connecting pipe 902, and a booster box 904 is installed in the middle of the upper end of the connecting pipe 902. The hydraulic control housing 8 is provided with an installation groove compatible with the hydraulic pipe 901 and the connecting pipe 902, and the carbon alloy protective sleeve 1 is provided with a mounting groove compatible with the hydraulic pipe 901 and the connecting pipe 902. The boost box 904 is adapted to the liquid inlet 11, and the adjustment mechanism 10 includes a motor 1001 installed at the upper end on the right side. The power output end of the motor 1001 is connected to the rotating rod 1002, and the motor 1001 passes through the carbon alloy protective sleeve 1 and the liquid control shell 8. The rotating rod 1002 is rotatably connected to the carbon alloy protective sleeve 1 and the liquid control shell 8. The other end of the rotating rod 1002 is fixedly connected to the bevel gear 1003. The middle of the inner cavity of the liquid control shell 8 is rotatably connected to a conical adjustment block 1004. A bevel gear ring 1005 is installed on the upper surface of the conical adjustment block 1004. A number of spiral strips 1006 are equidistantly connected to the outer surface of the conical adjustment block 1004. The bevel gear 1003 is meshed with the bevel gear ring 1005.

[0026] Working principle: When the device needs to increase the flow of hydraulic oil inside the carbon alloy protective sleeve 1, the liquid inlet pipe is used to inject liquid into the liquid inlet 11 on the booster box 904, and the valve 903 is opened to allow the connecting pipe 902 and the booster box 904 to pressurize the hydraulic pipeline 901, thereby accelerating the injection efficiency of the hydraulic pipeline 901. When the flow of hydraulic oil inside the carbon alloy protective sleeve 1 needs to be slowed down, the motor 1001 is turned on, and the rotating rod 1002 and the bevel gear 1003 are driven by the motor 1001 to rotate, thereby rotating the bevel gear ring 1005, rotating the conical adjustment block 1004 and the spiral bar 1006, and causing the internal hydraulic oil to form a vortex, which increases the flow resistance of the fluid when passing through the pipeline or pipeline valve, resulting in a decrease in flow, thereby effectively regulating the flow of the device.

[0027] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flow-adjustable hydraulic control sleeve, characterized in that: include: A carbon alloy protective sleeve (1), wherein the bottom of the carbon alloy protective sleeve (1) is fixedly connected to a lower shell (2), the upper end of the carbon alloy protective sleeve (1) is fixedly connected to an upper port (3), a connecting pipe (4) is installed in the middle of the inner cavity of the upper port (3), and a limiting block (5) is installed at the bottom of the connecting pipe (4); The lower port (6) is installed at the bottom of the limit block (5), the upper end of the lower port (6) is sleeved with a spring (7), the upper end of the spring (7) is connected to the limit block (5), and the bottom of the spring (7) is connected to the lower shell (2), the upper end of the inner cavity of the carbon alloy protective sleeve (1) is installed with a hydraulic control shell (8), the middle of the front and rear ends of the hydraulic control shell (8) is installed with a hydraulic mechanism (9), and the upper right end of the carbon alloy protective sleeve (1) is installed with an adjustment mechanism (10).

2. The flow-adjustable hydraulic control sleeve according to claim 1, characterized in that: The hydraulic mechanism (9) comprises a hydraulic pipeline (901) inserted in the middle of the front and rear ends of the hydraulic control housing (8), a connecting pipe (902) is inserted on one side of the hydraulic pipeline (901) close to each other, a valve (903) is installed in the middle of the rear end of the connecting pipe (902), and a booster box (904) is installed in the middle of the upper end of the connecting pipe (902).

3. The flow-adjustable hydraulic control sleeve according to claim 2, characterized in that: The hydraulic control housing (8) is provided with a mounting groove adapted to the hydraulic pipeline (901) and the connecting pipe (902).

4. The flow-adjustable hydraulic control sleeve according to claim 2, characterized in that: The carbon alloy protective sleeve (1) is provided with a liquid inlet (11) adapted to the hydraulic pipeline (901) and the booster box (904).

5. The flow-adjustable hydraulic control sleeve according to claim 1, characterized in that: The regulating mechanism (10) comprises a motor (1001) mounted on the upper right side, a power output end of the motor (1001) being connected to a rotating rod (1002), and the motor (1001) passing through the carbon alloy protective sleeve (1) and the hydraulic control housing (8), the rotating rod (1002) being rotatably connected to the carbon alloy protective sleeve (1) and the hydraulic control housing (8), the other end of the rotating rod (1002) being fixedly connected to a bevel gear (1003), a conical regulating block (1004) being rotatably connected to the middle of the inner cavity of the hydraulic control housing (8), a bevel gear ring (1005) being mounted on the upper surface of the conical regulating block (1004), and a plurality of spiral strips (1006) being equidistantly connected to the outer surface of the conical regulating block (1004).

6. The flow-adjustable hydraulic control sleeve according to claim 5, characterized in that: The bevel gear (1003) is meshed with the bevel gear ring (1005).

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