RU62656U1 - SYSTEM OF AUTOMATIC PRESSURE SUPPORT ON A WELL OF WELLS (OPTIONS) - Google Patents

Abstract

The utility model relates to devices for controlling the flow of gaseous and liquid substances using elements of a pressure-sensitive medium and can be used in gas producing fields with well clusters. The system comprising a well cluster, control devices and pressure sensors is made in the form of remotely controlled control devices and pressure sensors with electrical output installed on each well of the well, a pressure sensor with electrical output installed on a common reservoir of the well and control unit, with sensors and a control unit have electrical connections. The system (option) is made in the form of remotely controlled regulating devices and position sensors of the regulating device with an electric output installed on each well of the well, a pressure sensor with an electric output installed on a common collector of the well and the control unit, the sensors and the control unit having electrical connections. The control unit is equipped with an autonomous power supply and contains a time counter. The technical result is the ability to automatically maintain pressure on the wells in an optimal technological mode.

Description

The proposed utility model relates to devices for controlling the flow of gaseous and liquid substances using elements sensitive to pressure of the medium and can be used in gas production fields with well clusters.

The task of maintaining the maximum pressure specified by the technological regulations in the general pipeline of the well cluster is relevant for the entire period of operation of the gas field.

Well-known well control systems (AS No. 1622588, MKI 5 ЕВВ 43/00, F17D 1/00 and Patent No. 4,041 Е21В 43/12).

These systems have the disadvantage that actuators are controlled along control lines from gas treatment plants to transportation.

In conditions when the wells are at a considerable distance or for other reasons, it is not practical to lay control lines to them, pressure regulation at the wells is difficult and is done occasionally, which as a result leads to a decrease in the productivity of the well cluster.

The problem, which the utility model is aimed at, is to create such a technical solution, using which it would be possible to automatically maintain pressure at the wells in the optimal technological mode.

This problem can be solved using the proposed system, made in the form of remotely controlled regulating devices and pressure sensors with electric output installed on each well of the well, a pressure sensor with electric output installed on the common collector of the bush and control unit with an autonomous power source and time counter the operation of each well with a minimum and maximum flow rate, and the sensors and control unit have electrical connections.

New that distinguishes the proposed solution from the prototype is that the system for automatically maintaining pressure on the wellbore is made in the form of remotely controlled control devices and pressure sensors with electric output installed on each well of the bush, a pressure sensor with

an electrical outlet installed on a common manifold of the bush and control unit with an autonomous power supply and a counter for the operating time of each well with a minimum and maximum flow rate, the sensors and the control unit having electrical connections.

Alternatively, the system for automatically maintaining pressure on the well cluster can be made in the form of remotely controlled regulating devices and position sensors of the regulating device with an electrical output installed on each well in the cluster, a pressure sensor with an electrical output installed on a common reservoir manifold and a control unit with automatic the power source and the operating time counter of each well with a minimum and maximum flow rate, and the sensors and control unit are electrically Chesky communications.

The proposed utility model is shown in the drawing, where: in Fig.1 - a system for automatically maintaining pressure on the wellbore.

The system includes: a well bush 1 with wells 2, on which a control device 3 is installed, pressure sensors 4, a pressure sensor 5 installed on a common manifold 6 of the bush, a control unit 7 with electrical connections 8.

Maintaining the pressure of the wellbore is as follows. When the pressure in the common reservoir manifold drops to the lower value of the pressure sensor 5 set by the technological regulations, the control unit 7 issues a command to increase the flow area of the regulating device 3 of one of the well boreholes. After increasing the pressure in the common collector above the lower value established by the technological regulations, the control unit 7 issues a command to stop increasing the flow area of the regulating device 3.

If after the complete opening of the control device 3, the pressure in the common reservoir does not exceed the lower value, the control unit 7 issues a command to increase the flow area of the control device of the next well, etc. until the pressure in the common collector exceeds the lower value established by the technological regulations.

When the pressure in the common collector increases above the value established by the technological regulations, the actions of the system occur in the reverse order.

Thus, a self-contained system automatically maintains pressure in the general reservoir of the bush within the limits specified by the technological regulations.

The creation of such a system does not require significant capital expenditures, and its operation and reliability, thanks to the use of proven serial

products, dramatically reduces operating costs, while at the same time increasing the productivity of well clusters.

Claims (6)

1. A system for automatically maintaining pressure on a wellbore, comprising a wellbore, regulating devices and pressure sensors, characterized in that it is made in the form of remotely controlled regulating devices and pressure sensors with electric output installed on each well of the well, a pressure sensor with electric output mounted on a common manifold of the bush and the control unit, and the sensors and control unit have electrical connections. 2. The system according to claim 1, characterized in that the control unit is equipped with an autonomous power source. 3. The system according to claim 2, characterized in that the control unit comprises a time counter. 4. The system of automatic pressure maintenance on the wellbore, characterized in that it is made in the form of remotely controlled regulating devices and position sensors of the regulating device with electric output installed on each well of the cluster, a pressure sensor with electric output installed on a common reservoir and block collector control, and the sensors and control unit have electrical connections. 5. The system according to claim 4, characterized in that the control unit is equipped with an autonomous power source. 6. The system according to claim 5, characterized in that the control unit comprises a time counter.