SIAM SUDOS-mini 2, Руководство по эксплуатации, Страница: 18 / 64

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pulse by releasing a portion of gas into the annular space. At low
overpressures and under vacuum, the valve can be used to generate an
acoustic signal by letting a portion of high-pressure gas into the annulus. In
this case, a set of gas-balloon equipment GBO-02 filled with nitrogen is
used as a source of excess pressure. When gas is released from the annulus
with a universal valve, the receiver, from the GBO-02 set, can be used to
change the shape of the acoustic package. In this case, gas equipment is not
connected.

GBO-02 Conversion Kit
A set of gas-balloon equipment (gas -
nitrogen) "GBO-02" is used when refitting
level gauges of the "SUDOS" series to ensure
level control in the absence and low excess
pressures (2 - 4 atm.) in the annulus of the well.
GBO-02 consists of a cylinder, a reducer, a
receiver and a connecting hose. The hose is
equipped with a connector that allows you to
connect (disconnect) gas-cylinder equipment to
the level gauge receiver. A cylindrical receiver
from the GBO-02 set is screwed (threaded
connection) onto a specialized manual valve of
the level gauge. Gas from a BC-type cylinder is
supplied through the VK94 valve, BK-50-4
reducer (reduces pressure to 15 atm) and
through a hose into the storage receiver. When
the level gauge valve is opened, a portion of the gas accumulated in the
receiver enters the annulus of the well and thereby an acoustic signal is
formed to control the liquid level in the well in the absence of excess
pressure in the well (or low pressure, up to 4 atm). One filling of the
cylinder is sufficient for up to 250 level measurements, provided that the
pressure in the cylinder is 150 atm.