CN216588572U - Dynamic liquid level detector for oil well - Google Patents

Abstract

The utility model provides a dynamic liquid level detection device for an oil well, which relates to the field of oil exploitation equipment and comprises a crossover sub, a microphone, a two-way electromagnetic valve, an air chamber and a circuit shell, wherein the crossover sub is connected with the circuit shell; the microphone is fixed in crossover sub's inside, crossover sub's an interface, the air inlet or the gas outlet of air chamber, and the one end of circuit shell all connect in the valve body of two-way solenoid valve and with the inside intercommunication of this valve body, the one end that is close to two-way solenoid valve in the microphone inserts inside the valve body of two-way solenoid valve, and the microphone inserts and is equipped with the microphone sealing washer between the outer peripheral face of the inside one end of valve body of two-way solenoid valve and the valve body inner wall of two-way solenoid valve, the coil in the interior case subassembly of microphone and two-way solenoid valve all is connected with the supply circuit who locates in the circuit shell. The utility model solves the problems of untimely detection, inaccurate detection, large and heavy detection equipment, complex and fussy installation process and long detection period of the oil well liquid level detection mode in the prior art.

Description

Dynamic liquid level detector for oil well

Technical Field

The utility model relates to the technical field of oil exploitation equipment, in particular to an oil well dynamic liquid level detection device.

Background

In the aspect of oil exploitation technology, in the drilling construction process, the well leakage is a common accident in the drilling construction, if the well leakage is not properly processed, the well engineering accident which is serious and complex to process can be caused, so that in the drilling process, the flexible and high-precision liquid level detection technology can monitor the liquid level height in real time, the drilling construction safety is ensured, and the proceeding condition of the leakage plugging work can be known through the liquid level detection data; in addition, in the production process of the oil field, the working fluid level between the oil pipe and the casing pipe is an important index reflecting the liquid supply capacity of the bottom layer, the pump depth of the oil well can be directly determined, the fluid pressure and the static pressure at the bottom of the well can be calculated through detection and analysis of the working fluid level, the matching condition of the production working system of the oil well and the energy of the bottom layer can be judged, the working efficiency of the oil well is improved, and stable production is ensured.

In the prior art, the oil well liquid level detection modes mainly comprise an optical fiber type liquid level method, a drill rod column checking method, a silent bullet sound wave type liquid level detection method and the like, but the detection modes are limited by a test instrument and a process, the problems of untimely detection and inaccurate detection exist in different degrees, and detection equipment used in the detection modes has the problems of large size and heaviness, field installation can be completed only by the mutual cooperation of a plurality of testers, the installation process is complex and tedious, the detection period is long, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil well dynamic liquid level detection device, which solves the problems of untimely detection, inaccurate detection, large and heavy detection equipment, complex and cumbersome installation process and long detection period of an oil well liquid level detection mode in the prior art.

In order to achieve the above purpose, the embodiment of the utility model adopts the following technical scheme:

the embodiment of the utility model provides an oil well dynamic liquid level detection device, which comprises a conversion joint, a microphone, a two-way electromagnetic valve, an air chamber and a circuit shell, wherein the microphone is arranged on the conversion joint;

the microphone is fixed inside the adapter, one interface of the adapter, the air inlet or the air outlet of the air chamber and one end of the circuit shell are connected with the valve body of the two-way electromagnetic valve and communicated with the inside of the valve body, one end of the microphone, which is close to the two-way electromagnetic valve, is inserted into the valve body of the two-way electromagnetic valve, a microphone sealing ring is arranged between the peripheral surface of one end of the microphone, which is inserted into the valve body of the two-way electromagnetic valve, and the inner wall of the valve body of the two-way electromagnetic valve, and the microphone and a coil in the inner valve core assembly of the two-way electromagnetic valve are connected with a power supply circuit arranged in the circuit shell;

the gas entering the gas chamber from the gas inlet of the gas chamber can be discharged into the valve body of the two-way electromagnetic valve through the gas outlet of the gas chamber and triggers the valve core of the two-way electromagnetic valve to open and close to generate detonation sound under the condition that the preset pressure is reached, and the microphone is used for amplifying the detonation sound; or, the gas entering the microphone from the gas inlet end of the microphone can be discharged into the valve body of the two-way electromagnetic valve through the gas outlet end of the microphone under the condition of reaching the preset pressure and triggers the valve core of the two-way electromagnetic valve to open and close to generate the detonation, and the gas chamber is used for balancing the gas pressure in the valve body of the two-way electromagnetic valve.

The embodiment of the utility model can realize the following beneficial effects:

the oil well dynamic liquid level detection device provided by the embodiment of the utility model is used for detecting the liquid level of an oil well, and the detection process mainly comprises the following two working conditions:

under the condition that the gas entering the gas chamber from the gas inlet of the gas chamber reaches the preset pressure, the gas is discharged into the valve body of the two-way electromagnetic valve through the gas outlet of the gas chamber and triggers the valve core of the two-way electromagnetic valve to open and close to generate detonation sound, and the microphone is used for amplifying the detonation sound; when in use, the gas cylinder is mostly used in the drilling process, because no pressure exists in the well, a nitrogen cylinder or other inert gas cylinders are usually used for connecting the gas inlet of the gas chamber, inert gas is filled into the gas chamber, when the air pressure in the air chamber reaches the preset pressure, the air is discharged into the valve body of the two-way electromagnetic valve through the air outlet of the air chamber, at the moment, because the pressure difference exists on the two sides of the valve core of the two-way electromagnetic valve, the valve core of the two-way electromagnetic valve is triggered to open and close to generate detonation sound, the sound is transmitted to the well through the internal control of the microphone and is reflected back after meeting the liquid level, the sound is received by the microphone and the signal is processed by the power supply circuit part connected with the microphone to clear the liquid level depth, the microphone and the power supply circuit capable of processing the signal transmitted by the microphone are well known in the art, and the present application is directly applied and will not be described herein.

And under the second working condition, the gas entering the microphone from the gas inlet end of the microphone can be discharged into the valve body of the two-way electromagnetic valve through the gas outlet end of the microphone under the condition of reaching preset pressure, and the valve core of the two-way electromagnetic valve is triggered to open and close to generate explosion sound, and the gas chamber is used for balancing the gas pressure in the valve body of the two-way electromagnetic valve. During the use, be used to among the oil field production process more, keep away from an interface and the production tree pressure gauge joint connection of two-way solenoid valve with crossover sub, rise to preset pressure when the inside atmospheric pressure of microphone, gaseous inside the valve body of two-way solenoid valve of discharging to via the end of giving vent to anger of microphone, at this moment, because there is pressure differential in the case both sides of two-way solenoid valve, thereby trigger the case of two-way solenoid valve and open and shut and produce the detonation, the air chamber is used for balancing the gas pressure in the valve body of two-way solenoid valve, in order to learn oil well liquid level.

The mode that the dynamic liquid level detection device of oil well that this embodiment provided detects the oil well liquid level is different from traditional optic fibre formula liquid level method, drilling rod column check method, noiseless warhead sound wave formula liquid level detection method etc. and the testing result relies on the pressure differential to report to the police, and the degree of accuracy is higher, and simultaneously, device overall structure is simple, and whole volume is less and easy equipment, installation and detection than traditional liquid level check out test set, is favorable to reducing the cost of labor when detecting, and is favorable to shortening detection cycle to improve and detect the promptness.

As an optional implementation manner of this embodiment, the interface of the adapter includes a first interface and a second interface, the air inlet end of the microphone faces the first interface of the adapter, and the air outlet end of the microphone faces the second interface of the adapter; wherein: the gas outlet sealing connection of air chamber in the inlet end of two-way solenoid valve, crossover sub's first interface sealing connection in the end of giving vent to anger of two-way solenoid valve, the periphery wall of the inlet end of microphone with be equipped with the microphone sealing washer between the valve body inner wall of two-way solenoid valve.

In this alternative embodiment, preferably, but not limited to, an air inlet joint and a wiring joint are further connected to the valve body of the two-way solenoid valve, and the air inlet joint is communicated with the air chamber through an internal passage of the valve body of the two-way solenoid valve.

Further preferably, a valve body of the two-way electromagnetic valve is provided with an air inlet joint mounting threaded hole, one end of the air inlet joint is in threaded connection with the air inlet joint mounting threaded hole, and a sealing ring is arranged between the air inlet joint and the air inlet joint mounting threaded hole; and/or, be equipped with wiring joint installation screw hole on the valve body of two-way solenoid valve, wiring joint's one end threaded connection in wiring joint installation screw hole, just wiring joint with be equipped with the sealing washer between the wiring joint installation screw hole.

In addition, in this alternative embodiment, preferably, but not limited to, the air outlet of the air chamber is connected to the air inlet end of the two-way solenoid valve in a threaded manner, and a sealing ring is disposed between the air outlet of the air chamber and the air inlet end of the two-way solenoid valve.

As another optional implementation manner of this embodiment, the interface of the adapter includes a first interface and a second interface, the air inlet end of the microphone faces the first interface of the adapter, and the air outlet end of the microphone faces the second interface of the adapter; wherein:

the second interface sealing connection of crossover sub in the inlet end of two-way solenoid valve, the periphery wall of the end of giving vent to anger of microphone with be equipped with the microphone sealing washer between the valve body inner wall of two-way solenoid valve, the air inlet sealing connection of air chamber in the end of giving vent to anger of two-way solenoid valve.

In this alternative embodiment, preferably, but not limited to, the air inlet of the air chamber is connected to the air outlet of the two-way solenoid valve by a screw.

In addition, in the alternative embodiment, preferably, but not limited to, an end surface of the first interface of the adapter is provided with an extension portion, and an outer circumferential surface of the extension portion is provided with a connection external thread for connecting with a pressure gauge connector of a christmas tree.

In any optional embodiment of this embodiment, preferably, but not limited to, the valve body of the two-way solenoid valve is provided with at least two bolt holes, a bolt is inserted and fixed into the bolt hole, and a tail end of the bolt abuts against an outer peripheral surface of one end of the microphone inserted into the valve body of the two-way solenoid valve to fix the microphone.

In any optional embodiment of this embodiment, preferably, but not limited to, a circuit housing mounting threaded hole is formed in the valve body of the two-way electromagnetic valve, a connection external thread is formed at one end of the circuit housing, which is connected to the valve body of the two-way electromagnetic valve, and the circuit housing is connected to the inside of the circuit housing mounting threaded hole through the connection external thread;

the thread pitch of the connecting external thread and the circuit shell mounting threaded hole is not less than 0.7mm, the meshing thread is not less than 5, and the meshing depth is not less than 8 mm.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic overall structure diagram of an alternative embodiment of a dynamic liquid level detection device for an oil well provided by an embodiment of the utility model;

FIG. 2 is a front cross-sectional view of the well dynamic level sensing device shown in FIG. 1;

FIG. 3 is a schematic overall structure diagram of another alternative embodiment of the oil well dynamic liquid level detection device provided by the embodiment of the utility model;

fig. 4 is a front sectional view of the oil well dynamic liquid level detection device shown in fig. 3.

Icon: 1-a crossover joint; 10-an extension; 11-a first interface; 12-a second interface; 2-a microphone; 21-an air inlet end; 22-air outlet end; 3-two-way electromagnetic valve; 31-bolt holes; 4-air chamber; 5-a circuit housing; 6-microphone sealing ring; 7-an air inlet joint; 8-a wiring joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 to 4, the dynamic liquid level detection device for the oil well comprises an adapter 1, a microphone 2, a two-way solenoid valve 3, an air chamber 4 and a circuit housing 5.

Specifically, the microphone 2 is fixed in crossover sub 1's inside, crossover sub 1's an interface, the air inlet or the gas outlet of air chamber 4, and circuit shell 5's one end all connect in two-way solenoid valve 3's valve body and communicate with the inside of this valve body, the one end that is close to two-way solenoid valve 3 in the microphone 2 inserts inside two-way solenoid valve 3's valve body, and microphone 2 inserts and is equipped with at least one microphone sealing washer 6 between the outer peripheral face of the inside one end of valve body of two-way solenoid valve 3 and two-way solenoid valve 3's valve body inner wall, the coil in the valve core subassembly all is connected with the supply circuit who locates circuit shell 5 in microphone 2 and two-way solenoid valve 3.

The oil well dynamic liquid level detection device provided by the embodiment of the utility model is used for detecting the liquid level of an oil well, and the detection process mainly comprises the following two working conditions:

under a first working condition, referring to fig. 1 and 2, when the gas entering the gas chamber 4 from the gas inlet of the gas chamber 4 reaches a preset pressure, the gas is discharged into the valve body of the two-way electromagnetic valve 3 through the gas outlet of the gas chamber 4 and triggers the valve core of the two-way electromagnetic valve 3 to open and close to generate detonation, and the microphone 2 is used for amplifying the detonation; when in use, the gas pressure sensor is mainly used in a well drilling process, because no pressure exists in a well, a nitrogen bottle or other inert gas bottles are usually used for connecting a gas inlet of a gas chamber 4, inert gas is filled into the gas chamber 4, when the gas pressure in the gas chamber 4 reaches a preset pressure, the gas is discharged into a valve body of a two-way electromagnetic valve 3 through a gas outlet of the gas chamber 4, at the moment, the valve core of the two-way electromagnetic valve 3 is triggered to open and close due to the pressure difference existing on two sides of the valve core of the two-way electromagnetic valve 3 to generate detonation, the sound is transmitted into the well through internal control of a microphone 2, the sound is reflected back after meeting the liquid level, the sound is received through the microphone 2 and is subjected to signal processing through a power supply circuit part connected with the microphone 2, so as to clear the depth of the liquid level, wherein the microphone 2 and the power supply circuit part capable of processing signals transmitted by the microphone 2 are well known prior art, and the gas pressure sensor is directly applied in the application, and will not be described in detail herein.

In the second operating mode, referring to fig. 3 and 4, when the gas entering the microphone 2 from the gas inlet 21 of the microphone 2 reaches the preset pressure, the gas is discharged into the valve body of the two-way solenoid valve 3 through the gas outlet 22 of the microphone 2 and triggers the valve element of the two-way solenoid valve 3 to open and close to generate a popping sound, and the gas chamber 4 is used for balancing the gas pressure in the valve body of the two-way solenoid valve 3. During the use, be used for among the oil field production process more, keep away from crossover sub 1 an interface and the production tree pressure meter connector connection of two-way solenoid valve 3, rise to preset pressure when 2 inside atmospheric pressure of microphone, it is gaseous inside the valve body of two-way solenoid valve 3 of end 22 discharges to via the giving vent to anger of microphone 2, at this moment, because there is pressure differential in two-way solenoid valve 3's case both sides, thereby trigger two-way solenoid valve 3's case and open and shut and produce the detonation, air chamber 4 is used for the gas pressure in balanced two-way solenoid valve 3's the valve body, in order to learn oil well liquid level.

The mode that the dynamic liquid level detection device of oil well that this embodiment provided detects the oil well liquid level is different from traditional optic fibre formula liquid level method, drilling rod column check method, noiseless warhead sound wave formula liquid level detection method etc. and the testing result relies on the pressure differential to report to the police, and the degree of accuracy is higher, and simultaneously, device overall structure is simple, and whole volume is less and easy equipment, installation and detection than traditional liquid level check out test set, is favorable to reducing the cost of labor when detecting, and is favorable to shortening detection cycle to improve and detect the promptness.

The specific structure of the oil well dynamic liquid level detection device provided by the embodiment is described in more detail below with reference to the accompanying drawings:

referring to fig. 1 and fig. 2, as an alternative implementation of the present embodiment (applied to the above-mentioned first working condition), the interface of the crossover sub 1 includes a first interface 11 and a second interface 12, the air inlet end 21 of the microphone 2 faces the first interface 11 of the crossover sub 1, and the air outlet end 22 of the microphone 2 faces the second interface 12 of the crossover sub 1; wherein: the gas outlet of air chamber 4 is sealing connection in the inlet end of two-way solenoid valve 3, and the first interface 11 sealing connection of crossover sub 1 is in the end of giving vent to anger of two-way solenoid valve 3, is equipped with at least one microphone sealing washer 6 between the periphery wall of the inlet end 21 of microphone 2 and the valve body inner wall of two-way solenoid valve 3.

With continued reference to fig. 1 and 2, in the present alternative embodiment, preferably but not limited to, an air inlet connector 7 and a wiring connector 8 are further connected to the valve body of the two-way solenoid valve 3, and the air inlet connector 7 is communicated with the air chamber 4 through the internal passage of the valve body of the two-way solenoid valve 3.

Further preferably, a valve body of the two-way electromagnetic valve 3 is provided with an air inlet joint mounting threaded hole, one end of the air inlet joint 7 is in threaded connection with the air inlet joint mounting threaded hole, and a sealing ring is arranged between the air inlet joint 7 and the air inlet joint mounting threaded hole; and/or a wiring connector mounting threaded hole is formed in the valve body of the two-way electromagnetic valve 3, one end of the wiring connector 8 is in threaded connection with the wiring connector mounting threaded hole, and a sealing ring is arranged between the wiring connector 8 and the wiring connector mounting threaded hole. Wherein "and/or" means "and/or" the preceding structure is set alternatively or simultaneously with "and/or" the following structure.

In addition, in the alternative embodiment, preferably, but not limited to, the air outlet of the air chamber 4 is connected to the air inlet end of the two-way solenoid valve 3 in a threaded manner, and a sealing ring is arranged between the air outlet of the air chamber 4 and the air inlet end of the two-way solenoid valve 3.

Make the connected mode of air outlet difference threaded connection in two solenoid valve 3's valve body of air inlet joint 7, wiring joint 8 and air chamber 4 above, compare with fixed connection, can dismantle the maintenance in the segmentation under the condition that circuit etc. breaks down in air inlet joint 7, wiring joint 8 and air chamber 4, have the beneficial effect of being convenient for carry out the plant maintenance, reduce the maintenance cost, compare with buckle connection or other detachable connections mode, then have the beneficial effect of the equipment of being convenient for counterpoint fast.

Referring to fig. 3 and 4, as another alternative implementation of the present embodiment (applied to the second working condition), the interface of the crossover sub 1 includes a first interface 11 and a second interface 12, the air inlet 21 of the microphone 2 faces the first interface 11 of the crossover sub 1, and the air outlet 22 of the microphone 2 faces the second interface 12 of the crossover sub 1; wherein: the second interface 12 of the adapter 1 is connected to the air inlet end of the two-way solenoid valve 3 in a sealing manner, a microphone sealing ring 6 is arranged between the peripheral wall of the air outlet end 22 of the microphone 2 and the inner wall of the valve body of the two-way solenoid valve 3, and the air inlet of the air chamber 4 is connected to the air outlet end of the two-way solenoid valve 3 in a sealing manner.

With continued reference to fig. 3 and 4, in the present alternative embodiment, preferably but not limited to, the air inlet of the air chamber 4 is connected with the air outlet of the two-way solenoid valve 3 by a screw.

In addition, with continued reference to fig. 3 and 4, in the alternative embodiment, preferably, but not limited to, the end surface of the first port 11 of the adapter 1 is provided with an extension portion 10, and the outer peripheral surface of the extension portion 10 is provided with a connecting external thread for connecting with a pressure gauge joint of a christmas tree.

In addition, referring to fig. 1 and fig. 3, it is emphasized that, in any of the two alternative embodiments of the present embodiment, referring to fig. 1 and fig. 3, at least two bolt holes 31 are preferably disposed on the valve body of the two-way solenoid valve 3, a bolt (not shown) is inserted and fixed into the bolt hole 31, and a tail end of the bolt abuts against an outer peripheral surface of one end of the microphone 2 inserted into the valve body of the two-way solenoid valve 3 to fix the microphone 2.

In addition, in any optional embodiment of the present embodiment, preferably, but not limited to, a circuit housing mounting threaded hole is formed in the valve body of the two-way solenoid valve 3, a connection external thread is formed at one end of the circuit housing 5 connected to the valve body of the two-way solenoid valve 3, and the circuit housing 5 is connected to the inside of the circuit housing mounting threaded hole through the connection external thread; preferably, the thread pitch of the connecting external thread and the circuit shell mounting threaded hole is more than or equal to 0.7mm, the meshing thread is more than or equal to 5, the meshing depth is more than or equal to 8mm, and the thread shape and the matching grade are designed into explosion-proof threads according to GB/T197-2003 and GB/T2516-200 so as to improve the detection safety.

Finally, it should be noted that: the embodiments in the present description are all described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments can be referred to each other; the above embodiments in the present specification are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The oil well dynamic liquid level detection device is characterized by comprising a conversion joint (1), a microphone (2), a two-way electromagnetic valve (3), an air chamber (4) and a circuit shell (5);

the microphone (2) is fixed inside the adapter (1), one interface of the adapter (1), an air inlet or an air outlet of the air chamber (4) and one end of the circuit shell (5) are connected to the valve body of the two-way electromagnetic valve (3) and communicated with the inside of the valve body, one end of the microphone (2) close to the two-way electromagnetic valve (3) is inserted into the valve body of the two-way electromagnetic valve (3), a microphone sealing ring (6) is arranged between the peripheral surface of one end of the microphone (2) inserted into the valve body of the two-way electromagnetic valve (3) and the inner wall of the valve body of the two-way electromagnetic valve (3), and coils in the valve core assembly in the microphone (2) and the two-way electromagnetic valve (3) are connected with a power supply circuit arranged in the circuit shell (5);

the gas entering the gas chamber (4) from the gas inlet of the gas chamber (4) can be discharged into the valve body of the two-way electromagnetic valve (3) through the gas outlet of the gas chamber (4) under the condition of reaching a preset pressure and triggers the valve core of the two-way electromagnetic valve (3) to open and close to generate detonation, and the microphone (2) is used for amplifying the detonation; or the gas entering the microphone (2) from the gas inlet end (21) of the microphone (2) can be discharged into the valve body of the two-way electromagnetic valve (3) through the gas outlet end (22) of the microphone (2) under the condition that the preset pressure is reached, and triggers the valve core of the two-way electromagnetic valve (3) to open and close to generate detonation, and the gas chamber (4) is used for balancing the gas pressure in the valve body of the two-way electromagnetic valve (3).

2. Oil well dynamic level detection device according to claim 1,

the interface of the adapter (1) comprises a first interface (11) and a second interface (12), the air inlet end (21) of the microphone (2) faces the first interface (11) of the adapter (1), and the air outlet end (22) of the microphone (2) faces the second interface (12) of the adapter (1); wherein:

the gas outlet sealing connection in of air chamber (4) in the inlet end of two solenoid valve (3), first interface (11) sealing connection in the end of giving vent to anger of two solenoid valve (3) of crossover sub (1), the periphery wall of inlet end (21) of microphone (2) with be equipped with microphone sealing washer (6) between the valve body inner wall of two solenoid valve (3).

3. The oil well dynamic liquid level detection device according to claim 2, characterized in that an air inlet joint (7) and a wiring joint (8) are further connected to the valve body of the two-way electromagnetic valve (3), and the air inlet joint (7) is communicated with the air chamber (4) through the internal valve body channel of the two-way electromagnetic valve (3).

4. The oil well dynamic liquid level detection device according to claim 3, characterized in that a valve body of the two-way electromagnetic valve (3) is provided with an air inlet joint mounting threaded hole, one end of the air inlet joint (7) is in threaded connection with the air inlet joint mounting threaded hole, and a sealing ring is arranged between the air inlet joint (7) and the air inlet joint mounting threaded hole; and/or a wiring connector mounting threaded hole is formed in the valve body of the two-way electromagnetic valve (3), one end of the wiring connector (8) is in threaded connection with the wiring connector mounting threaded hole, and a sealing ring is arranged between the wiring connector (8) and the wiring connector mounting threaded hole.

5. The oil well dynamic liquid level detection device according to claim 2, characterized in that the air outlet of the air chamber (4) is connected with the air inlet end of the two-way electromagnetic valve (3) in a threaded manner, and a sealing ring is arranged between the air outlet of the air chamber (4) and the air inlet end of the two-way electromagnetic valve (3).

6. The well dynamic level detection device of claim 1,

the interface of the adapter (1) comprises a first interface (11) and a second interface (12), the air inlet end (21) of the microphone (2) faces the first interface (11) of the adapter (1), and the air outlet end (22) of the microphone (2) faces the second interface (12) of the adapter (1); wherein:

second interface (12) sealing connection in of crossover sub (1) the inlet end of two solenoid valve (3), the periphery wall of the end of giving vent to anger (22) of microphone (2) with be equipped with microphone sealing washer (6) between the valve body inner wall of two solenoid valve (3), the air inlet sealing connection in the end of giving vent to anger of two solenoid valve (3) of air chamber (4).

7. The oil well dynamic liquid level detection device according to claim 6, characterized in that the air inlet of the air chamber (4) is connected with the air outlet end of the two-way solenoid valve (3) through a screw.

8. The oil well dynamic liquid level detection device according to claim 6, characterized in that the end surface of the first interface (11) of the adapter (1) is provided with an extension part (10), and the outer circumference of the extension part (10) is provided with a connecting external thread for connecting with a pressure gauge connector of a Christmas tree.

9. The oil well dynamic liquid level detection device according to any one of claims 2 to 8, wherein at least two bolt holes (31) are provided in the valve body of the two-way solenoid valve (3), a bolt is inserted and fixed into the bolt hole (31), and the tail end of the bolt abuts against the outer peripheral surface of one end of the microphone (2) inserted into the valve body of the two-way solenoid valve (3) to fix the microphone (2).

10. The oil well dynamic liquid level detection device according to any one of claims 2-8, characterized in that a circuit housing mounting threaded hole is arranged on the valve body of the two-way solenoid valve (3), a connecting external thread is arranged at one end of the circuit housing (5) connected to the valve body of the two-way solenoid valve (3), and the circuit housing (5) is connected to the inside of the circuit housing mounting threaded hole through the connecting external thread;

the thread pitch of the connecting external thread and the circuit shell mounting threaded hole is not less than 0.7mm, the meshing thread is not less than 5, and the meshing depth is not less than 8 mm.

Images