RU210778U1 - AUTOMATIC LEVEL GAUGE - Google Patents

Abstract

The technical solution relates to acoustic measurement and control methods and is designed to determine the liquid level in wells, including oil wells. The technical result of the above task is achieved by creating an automatic level sensor, consisting of a housing, at one end of which there is a coupling and a reflected acoustic signal converter, a mechanical valve for creating an acoustic signal manually and relieving pressure when dismantling the device, a controller with a radio channel and an NFC tag , where a solenoid valve is installed in the housing, and the controller itself controls this valve according to a given schedule.

Description

FIELD OF TECHNOLOGY

The technical solution relates to acoustic measurement and control methods and is intended to determine the liquid level in wells, including oil wells.

BACKGROUND OF THE INVENTION

Known echo sounder for measuring the level of fluid in a well (RU 2282718 from 21.02.2005, IPC E21B 47/04). The echo sounder comprises a housing attached to the wellhead nipple of the casing pipe with the help of an adapter sleeve, an acoustic pulse generator, a device for receiving acoustic pulses in the form of a piezoelectric microphone, a pressure sensor and a control unit. The acoustic pulse generator is made in the form of a piezoelectric element equipped with a pulse amplifier in the form of a diffuser and electrically connected to the electrical pulse generator. The control unit is equipped with a processor with a predetermined program for automatically correcting the measurement results, taking into account the propagation velocity of the acoustic pulse from pressure and the composition of the gaseous medium in the annulus. The wires from the pressure sensor and the piezoelectric microphone are connected to the electric pulse generator and connected to the terminal block of the multicore cable coming from the control unit to the said pulse generator. As a pressure sensor, the use of a MIDA sensor is declared, while the piezoelectric microphone is installed in front of the diffuser, as close as possible to the transition sleeve, and the echo sounder itself is placed in a quickly collapsible casing with a hinged lid that can be locked.

It is also known a device for measuring the level of liquid in a well (RU 13391 dated October 28, 1999, IPC E21V 47/04), containing a cylindrical body, from one end of which there is a threaded coupling for connection with the well fittings, and from the other, an acoustic signal emitter, Converter of the reflected acoustic signal into an electrical one, where in the housing on a base made opposite the emitter with through functional holes there is a converter of the reflected acoustic signal into an electrical one and an additionally introduced pressure sensor, a measurement unit made in the form of printed circuit assemblies oriented along the axis of the housing with functional elements, a battery for autonomous operation of the device, as well as additionally introduced enclosing housing with the possibility of rotation, a cylindrical casing and an input-output unit installed on it with indication, which is connected to the measurement unit via a flexible cable and a detachable contact assembly, one part of which is connected nena with the I / O block, and the other - the counterpart is skipped with the possibility of movement in the groove made in the housing.

The disadvantage of the above devices, both an echo sounder and a device for measuring the level of liquid in a well, is the inability to work in automatic mode due to the lack of wireless remote control.

As the closest analogue of the claimed utility model, one can indicate a level sensor (RU 193245 dated 03/04/2019, class MPK E21B 47/04, G01F 23/00), consisting of a housing, at one end of which there is a coupling and a reflected acoustic signal transducer, and on the other hand, an acoustic signal generator, where a controller with a built-in radio channel ensures the measurement and storage of electrical signals from a pressure transducer and an acoustic signal converter in a non-volatile memory, as well as the transfer of recorded data through a built-in radio channel located in the controller, an NFC tag is designed to establish communication with sensor via the NFC interface.

The disadvantage of the above device is the inability to carry out measurements in automatic mode according to a given schedule without the participation of the operator, as well as the fact that the work of a person (operator) is often expressed in the variability of the duration of the formation of an acoustic signal manually, which affects the accuracy of measurements.

The task of the technical solution is to create a level sensor that provides automatic operation according to a given schedule without the participation of an operator and obtaining more accurate data.

DISCLOSURE OF THE ESSENCE OF THE UTILITY MODEL

The technical result of the above task is achieved by creating an automatic level sensor, consisting of a housing, at one end of which there is a coupling and a reflected acoustic signal converter, a mechanical valve for creating an acoustic signal manually and relieving pressure when dismantling the device, a controller with a radio channel and an NFC tag , and characterized in that a solenoid valve is installed in the housing. This feature allows you to measure the level in automatic mode without the participation of the operator and obtain more accurate data. The solenoid valve is controlled by the controller according to a given schedule.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 - shows a general view of the level sensor,

pos. 1 - automatic level sensor;

pos. 2 - coupling that provides connection of the base of the body (3) with wellhead fittings;

pos. 3 - body base;

pos. 3.1 - nozzle;

pos. 3.2 - plug;

pos. 3.3 - connector for charging the built-in battery;

pos. 4 - cover;

pos. 5 - manual valve;

pos. 6 - housing (casing is missing) with electronic components;

pos. 6.1 - solenoid valve;

pos. 6.2 - an electronic module, a controller with a radio channel for data transmission and an NFC tag;

pos. 6.3 - battery.

IMPLEMENTATION OF THE TECHNICAL SOLUTION

In all Figs. 1 - shows a general view of the level sensor. In this case, the automatic level sensor (1) is designed to measure the liquid level mainly in oil wells.

The level sensor includes a sleeve (2) that connects the body base (3) to the wellhead.

Between the base of the body (3) and the casing cover (4) there is a casing (6) made of a radio-transparent material and covering electronic components, such as an electronic module (6.2), a battery (6.3), a pressure transducer (not shown in the figure), solenoid valve (6.1).

In this case, the accumulator (6.3) ensures the continuous operation of the level sensor (1).

An electronic module (6.2) with a built-in radio channel and an NFC tag ensures the measurement and storage of electrical signals from a pressure transducer and an acoustic signal converter in a non-volatile memory, transmission of recorded data via a built-in radio channel, indication of the operation of the level sensor (1) and the process of charging the battery (6.3) , as well as to establish communication with the sensor via the NFC interface.

The manual valve (5) ensures the creation of an acoustic signal due to the short-term release of gas from the annulus of the well.

The manual valve (5) can be replaced by an acoustic signal generator (not shown in the figure), which makes it possible to operate the sensor in the absence of excess gas pressure in the annulus of the well.

In addition, a manual valve (5) is used to bleed excess pressure inside the coupling (2) for the safe dismantling of the instrument.

On the sleeve (2) of the level sensor (1) there are two U-shaped handles located coaxially with respect to each other and providing convenience for screwing the level sensor (1) onto the wellhead and dismantling it.

The work of the proposed technical solution for measuring the level of fluid in a well, including oil, is as follows.

The automatic level sensor (1) is screwed onto the wellhead.

When bringing a mobile device (smartphone or other electronic device with an NFC interface) to the automatic level sensor (1), the sensor (1) switches from low power consumption mode to the operating mode, the mobile device reads the NFC tag of the sensor (1) and establishes communication with the sensor via a radio channel located in the controller. The operator, using a mobile application, can receive current data via a wireless communication channel, control the level sensor (1) and configure the automatic operation of the level sensor (1). The solenoid valve (6.1) is controlled by the controller (6.2) according to a given schedule. The latter is set according to the required tasks. In this case, operation in automatic mode can be carried out as long as there is a sufficient level of battery charge (6.3).

The proposed technical solution provides ease of use during operation of the automatic level sensor due to the presence of a wireless control in the design, which allows remote monitoring and control. Also, due to the presence of an electromagnetic valve in the design, automatic operation of the device according to a given schedule without the direct participation of the operator is ensured, which increases the reliability and accuracy of the data obtained.

Claims (1)

An automatic level sensor, consisting of a housing with a coupling and a reflected acoustic signal converter at one end, a mechanical valve for creating an acoustic signal manually and relieving pressure when dismantling the device, a controller with a radio channel and an NFC tag, characterized in that the housing contains solenoid valve.

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