Multifunctional intelligent switching device for oil-water well pipe column

Abstract

The invention discloses a multifunctional intelligent switching device for an oil-water well pipe column, and belongs to the technical field of switching devices. Comprising a device shell, a control valve used for opening and closing a through hole is arranged at the position of the through hole of the device shell, an electric switch used for controlling the control valve is arranged in the shell wall of the device shell in a sealed mode, the electric switch is connected with a signal transmitter a, and the signal transmitter a is connected with a signal receiver a. The signal receiver a is connected with a control system through a plurality of signal transmission devices, and a liquid level proximity sensor connected with the signal transmission devices is further arranged in the shell wall. The method has the beneficial effects that the blockage removal effect is good, the frequency of stopping for pump replacement is reduced, the phenomenon of output reduction caused by stopping for pump replacement is reduced, the pump replacement operation cost is reduced, and the yield and efficiency are increased.

Description

Technical Field

[0001] The invention relates to a multifunctional intelligent switch device for an oil and water well pipe column, belonging to the technical field of switch devices. Background Art

[0002] Pump inspection is an important process in oil production engineering. Its purpose is to lower the oil pump into the well to establish a well circulation to extract crude oil. From the perspective of oil production technology, the oil pump consists of four parts: a working cylinder, a piston, a floating valve, and a fixed valve. During the upstroke, the fixed valve opens and the floating valve closes, and the liquid enters the pump. During the downstroke, the piston moves downward, the floating valve opens, the fixed valve closes, and the liquid is discharged from the pump into the oil pipe. In order to ensure that the movement of the up and down strokes can achieve the extraction of crude oil, the fixed valve is designed as a one-way liquid inlet structure to ensure the sealing inside the pipe. This results in that when washing the well, the well can only be backwashed from the outside of the oil pipe, and it is impossible to wash the well forward. When wax is deposited or blocked in the working cylinder, it is necessary to lift the pipe to inspect the pump and re-establish the circulation.

[0003] From the perspective of well repair technology, the oil drainer will be installed above the pump in advance when the production tubing is lowered, so that the crude oil in the tubing can be leaked out during the pump inspection operation, preventing the crude oil and other liquids in the tubing from being brought to the ground and polluting the environment.

[0004] When the oil pump is seriously worn and the production capacity is reduced, it is necessary to replace the pump. Before the pump inspection, the oil needs to be drained. The following are the commonly used oil drainers, such as baffle oil drainers, sleeve oil drainers, lift-open oil drainers, impact oil drainers and rotary oil drainers. The frequent stops for pump replacement will result in large production losses.

[0005] When the working cylinder of the oil pump is clogged due to the accumulation of sand and gravel or wax, the crude oil cannot be pumped out. Usually, a small repair team needs to use backwashing to remove the blockage and flush the blockage out of the oil pump. However, the accumulation of blockage is often the strongest at the bottom, and due to the influence of the bottom fixed valve, the flushing fluid injected by reverse circulation is insufficient, resulting in failure of unblocking. Summary of the invention

[0006] The present invention provides another multifunctional intelligent switch device for an oil and water well pipe column which can improve the stable production cycle and the blocking removal efficiency.

[0007] The technical solution of the present invention is: a multifunctional intelligent switch device for an oil and water well pipe column, comprising a device shell, a control valve for opening and closing the through hole of the device shell is provided at the through hole of the device shell, an electric switch for controlling the control valve is sealed in the shell wall of the device shell, the electric switch is connected to a signal transmitter a, the signal transmitter a is connected to a signal receiver a, the signal receiver a is connected to a control system through a plurality of signal transmission devices, and a liquid level proximity sensor connected to the signal transmission device is also provided in the shell wall.

[0008] The top end of the device shell is connected to the oil pipe, and the bottom end of the device shell is connected to the oil pump.

[0009] A female buckle is provided at the top of the device housing, and the top of the device housing is threadedly connected with the oil pipe through the female buckle.

[0010] A male buckle is provided at the bottom end of the device housing, and the bottom end of the device housing is threadedly connected to the oil pump through the male buckle.

[0011] The signal transmission device comprises a signal receiver b and a signal transmitter a which are arranged in the wall of the oil pipe.

[0012] A battery pack b for supplying power to the signal receiver b and the signal transmitter b is also sealed in the wall of the oil pipe.

[0013] A battery pack a for supplying power to the signal transmitter a, the signal receiver a and the electric switch is also sealed in the shell wall.

[0014] The control valve is an electric valve.

[0015] The distance between adjacent signal transmission devices is 100 meters.

[0016] The beneficial effects of the present invention are:

[0017] (1) From the perspective of oil production, the stable production cycle of crude oil is improved.

[0018] (2) From an operational perspective, it improves operational efficiency.

[0019] (3) When the oil pump is blocked, open the valve of the electric switch device to form a positive circulation well washing, which can better wash out the blockage.

[0020] (4) The deblocking effect is good, which reduces the frequency of stopping for pump replacement and other reasons, reduces the production reduction caused by stopping for pump replacement and other reasons, and at the same time reduces the cost of pump replacement operations, thereby increasing production and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an electric switch device;

[0022] Figure 2 is a top view of the electric switch device;

[0023] Figure 3 is a structural diagram of a signal transmission device;

[0024] Figure 4 A top view of the signal transmission device.

[0025] The reference numerals in the figure are as follows: 1. shell wall, 2. control valve, 3. electric switch, 4. liquid level proximity sensor, 5. signal receiver a, 6. battery pack b, 7. female buckle, 8. male buckle, 9. signal receiver b, 10. signal transmitter b. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] The following is combined with Figure 1-4 The present invention is further described in detail: This application is further described by taking this as an example.

[0031] Example 1

[0032] A multifunctional intelligent switch device for a pipe column of an oil and water well, comprising a device shell, the device shell has an outer diameter of 87 mm, an inner diameter of 62 mm, a shell wall 1 with a thickness of 25 mm, an oil pipe connected to the top of the device shell, and an oil pump connected to the bottom of the device shell, a control valve 2 for opening and closing the through hole is provided at the through hole of the device shell, and the control valve 2 is an electric valve, and an electric switch 3 for controlling the control valve 2 is provided in the shell wall 1 of the device shell, the electric switch is connected to a signal transmitter a, and the signal transmitter a is connected to a signal receiver a5, and the signal receiver a is wirelessly connected to a control system located on the ground through a number of signal transmission devices, and a liquid level proximity sensor 4 connected to the signal transmission device is also provided in the shell wall 1, and the liquid level proximity sensor 4 is used to detect whether there is liquid passing, so as to determine whether the oil output is normal. A battery pack a for powering the signal transmitter a, the signal receiver a5 and the electric switch 3 is also sealed in the shell wall 1. The electric switch 3, the liquid level proximity sensor 4, the signal transmitter a and the signal receiver a5 are all sealed in the shell wall 1.

[0033] Example 2

[0034] As a supplement to Example 1, the top of the housing is threadedly connected to the oil pipe, and the bottom of the housing is threadedly connected to the oil pump, so as to achieve detachability. Specifically, a female buckle 7 is provided at the top of the housing, and the top of the housing is threadedly connected to the oil pipe through the female buckle 7. A male buckle 8 is provided at the bottom of the housing, and the bottom of the housing is threadedly connected to the oil pump through the male buckle 8.

[0035] Example 3

[0036] As a supplement to Example 1, the signal transmission device includes a signal receiver b9 and a signal transmitter b10 sealed in the wall of the oil pipe. A battery pack b6 for powering the signal receiver b and the signal transmitter b is also sealed in the wall of the oil pipe. The distance between adjacent signal transmission devices is 100 meters to ensure that the signal transmitter b10 can smoothly send signals to the signal receiver b9 of the adjacent signal transmission device.

[0037] Example 4

[0038] The liquid level proximity sensor detects whether there is liquid oil passing through to determine whether the oil production is normal. When there is no liquid oil passing through, that is, the oil production is abnormal, a signal will be sent to the ground control system. The ground control system sends a command to the electric switch through the signal receiver a, commanding the electric switch to open the electric valve and establish a positive circulation well washing channel. The command of the ground control system is transmitted through the signal transmitter b10 of several signal transmission devices and the signal receiver b9, and finally delivered to the signal receiver a5. The signal receiver a5 sends the command signal to the electric switch 3 through the signal transmitter a. The electric switch 3 executes the opening or closing command of the electric valve, and the electric valve performs specific actions.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multifunctional intelligent switch device for oil and water well pipe string, characterized in that: The device comprises a housing, wherein a control valve (2) for opening and closing the through hole is provided at the through hole of the housing, an electric switch (3) for controlling the control valve (2) is sealed in a housing wall (1) of the housing, the electric switch is connected to a signal transmitter a, the signal transmitter a is connected to a signal receiver a (5), the signal receiver a is connected to a control system via a plurality of signal transmission devices, and a liquid level proximity sensor (4) connected to the signal transmission device is also provided in the housing wall (1).

2. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1 is characterized in that: The top end of the device shell is connected to the oil pipe, and the bottom end of the device shell is connected to the oil pump.

3. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1 is characterized in that: A female buckle (7) is provided at the top end of the device housing, and the top end of the device housing is threadedly connected to the oil pipe via the female buckle (7).

4. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1 is characterized in that: A male buckle (8) is provided at the bottom end of the device housing, and the bottom end of the device housing is threadedly connected to the oil pump via the male buckle (8).

5. The multifunctional intelligent switch device for oil and water well pipe string according to claim 2 is characterized in that: The signal transmission device comprises a signal receiver b and a signal transmitter a which are arranged in the wall of the oil pipe.

6. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1 is characterized in that: A battery pack b (6) for supplying power to a signal receiver b (9) and a signal transmitter b (10) is also sealed in the wall of the oil pipe.

7. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1 is characterized in that: A battery pack a for supplying power to the signal transmitter a, the signal receiver a (5) and the electric switch (3) is also sealed in the shell wall (1).

8. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1 is characterized in that: The control valve (2) is an electric valve.

9. The multifunctional intelligent switch device for oil and water well pipe string according to claim 1, characterized in that: The distance between adjacent signal transmission devices is 100 meters.

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