초록 ▼

The multi-phase petroleum stream monitor includes two densitometers which measure the density of the petroleum stream at two locations and provides corresponding signals. The temperature and the pressure of the petroleum stream are also measured and corresponding signals provided. Apparatus provides

The multi-phase petroleum stream monitor includes two densitometers which measure the density of the petroleum stream at two locations and provides corresponding signals. The temperature and the pressure of the petroleum stream are also measured and corresponding signals provided. Apparatus provides signals corresponding to the density of the liquid in the petroleum stream and to the density of the gas in the petroleum stream. The liquid flow rate and the gas flow rate of the petroleum stream are determined in accordance with the two sensed density signals, the temperature signal, the pressure signal, the liquid density signal and the gas density signal.

대표청구항 ▼

Apparatus for monitoring a multi-phase petroleum stream flowing in a pipe comprising: two density sensing means for sensing the density of the petroleum stream at two locations a known distance apart and providing sensed density signals, corresponding to the sensed densities and which are related to

Apparatus for monitoring a multi-phase petroleum stream flowing in a pipe comprising: two density sensing means for sensing the density of the petroleum stream at two locations a known distance apart and providing sensed density signals, corresponding to the sensed densities and which are related to a fluid velocity of the petroleum stream, temperature sensing means for sensing the temperature of the petroleum stream and providing a temperature signal representative of the sensed temperature, pressure sensing means for sensing the pressure of the petroleum stream and providing a pressure signal in accordance with the sensed pressure, and flow rate means connected to both density sensing means, to the pressure sensing means and to the temperature sensing means for entering known values of gas density liquid density and a surface tension of gas and for providing signals corresponding to the liquid flow rate and to the gas flow rate of the petroleum stream in accordance with the sensed density signals, the temperature signal, the pressure signal and entered known values of the gas and the liquid.