MEASURING UNIT SPEKTR M

PURPOSE

Measurement of the following in the oil well products flow:
- crude oil volume;
- volume of liberated associated petroleum gas;
- pressure, temperature of oil-and-gas-and-water mixture;
- crude oil volume;
- crude oil weight without water consideration.

UNITS SPECIFICATIONS

Parameter	Value
Maximum operating pressure, MPA, not over	4.0
Measurement range
- volume flow of crude oil, m³/day	16.7 - 840
- volume flow of liberated associated petroleum gas under the operation condition, m³/day	0 - 720
Maximum operating pressure, MPA, not over	4.0
Allowable relative error of a unit (standard design) within the flow range of:
- crude oil volume	±5.0 %
- volume of crude oil reduced to standard conditions	±6.0 %
- volume of liberated associated petroleum gas	±8.0 %
- volume of liberated associated petroleum gas reduced to standard conditions	±10.0 %
Allowable relative error of a unit (precise design) within the flow range of:
- crude oil volume	±1.5 %
- volume of crude oil reduced to standard conditions	±2.0 %
- volume of liberated associated petroleum gas	±4.0 %
- volume of liberated associated petroleum gas reduced to standard conditions	±5.0 %
- crude oil weight	±2.5 %
- weight of crude oil without water consideration (with a volume fraction of water up to 70%)	±6.0 %
- allowable volume fraction of associated petroleum gas in the oil-and-gas-and-water mixture flow, %	0 - 50

PARAMETERS OF THE MEASURED MEDIUM

Parameter		Value
Temperature, ° C		0 to plus 110
Density, kg/m3		700 - 1360
Kinematic viscosity, m2/s		from 1·10^-5 to 1·10^-2
Volumetric content (fraction) of liberated associated petroleum gas in oil-and-gas-and-water mixture at flow and pressure value at the time of measurement, %		0 - 50
Volume fraction of water in measured medium,%		0 - 98
Content of hydrogen sulphide in liberated associated petroleum gas acc. to volume, %	@ 1.83 MPa	4
	At pressure over 1.83 MPa to max operating pressure	1