SURGE VESSEL

PURPOSE

It is designed to control the crude oil flow surges under the conditions of the plug structure of the oil-andgas-
and-water mixture flow, as well as to separate the liberated petroleum gas.

UNITS SPECIFICATIONS

Parameter	Value
Maximum flow of oil-and-gas-and-water mixture (depending on size), m³/day	60 - 2000
Maximum volumetric fraction of the liberated petroleum gas in oil-and-gas-and-water mixture under the operating conditions (depending on the measurement conditions), %	50; 90
Operating pressure, MPa	4,0
Surge vessel wall temperature, °С	from minus 40 to plus 130
Pressure loss at maximum flow of oil-and-gas-and-water mixture, MPa, not over	0,05

PARAMETERS OF THE MEASURED MEDIUM

Parameter	Value
Temperature, ° C	0 - 70
Kinematic viscosity range, m²/s	from 1·10^-6 to 10·10^-3
Density, kg/m³	800 - 1360
Hydrogen sulphide content in associated gas:
- @ pressure to 1.7 MPa	4 % of volume
- at pressures up to 4 MPa and partial pressure of hydrogen sulphide up to 345 Pa	0.02 % of volume