SIAM DU-1, Руководство по эксплуатации

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Well sounders «DU-1»
10. ADDITIONAL ACCESSORIES
10.1. GAI-1 Acoustic Pulse Generator
GAI-1 acoustic impulse
generator is supplied separately and is
designed for generating an acoustic
impulse when there is no excessive gas
pressure in the annular space of the
well. GAI-1 can be used at low annular
pressure for controlling fluid level up
to 1800… 2500 m.
GAI-1 is a unit which combines a container for accumulating
excessive air pressure, a manual pump, a shipping lock pin and a valve for
quick bleeding off.
The handle has spare rubber gaskets for GAI-1.
GAI-1 is to be installed on the well sounder instead of the
removable manual valve using the reduction sleeve in the gage package.
10.2. Multi-purpose Valve
The multi-purpose valve is supplied separately and is to be used in
SUDOS well sounders and SIAM-manufactured well sounders for
generating an acoustic impulse by injecting gas into the well or bleeding
the well down.
The valve is to be installed instead of the removable manual valve.
If there is excessive annular pressure, the valve is used as an ordinary
manual valve for generating an acoustic impulse by releasing some portion
of gas into the atmosphere. At low values of excessive pressure and in
vacuum, the valve can be used for forming an acoustic message by
injecting the portion of high pressure gas into the annular space. In this
case, GBO-2 conversion kit filled with nitrogen is used as an excessive
pressure source. While venting gas from the annular space by the multi-
purpose valve, the receiver from GBO-2 conversion kit might be used to