Double Separation metering device

Sanjack company designed a dual-separation weighing measurement device. The modified device has the following characteristics:double tanks work alternately to achieve continuous measurement; adopt an integrated design, compact structure, skid-mounted structure, can be used for mobile or fixed equipment;It is automatically controlled by the computer; Equipped with RTU and other equipment to achieve remote data transmission and remote monitoring.

For the complex conditions in Venezuela MPE3 oilfield including high viscosity oil, high gas content oil and foamy crude oil, Sanjack company had designed a brand-new solution for multiphase flow meter. This solution uses dual splitter, weight measurement method and built-in high efficiency cyclone separating device to engage the meter has the characteristic of wide adaption of measurement range, high accuracy, wide range, operation stability.

This device has already got the certification of Venezuela Ministry and received the high reputation of clients.

While the import three-way valve opened for the left separator, export three-way valve opened for right separator. Then liquid level of left separator started to increase. When it reached to setting position, ΔP would be measured.

ΔP=mg/S

M is the mass of liquid column in the separator, g is acceleration of gravity, S is sectional area of separator. The mass of liquid column in the separator can be calculated by this formula and also obtain the flow of well from the change of the mass of liquid column. Control system controls alternate measurement of left and right separator, thus implement continuous measurement of well. After the measurement, intelligent control system is able to calculate the run of oil in the setting time to convert to daily oil production.

when liquid flows in one tank, the air pressure pushes the liquid in another tank. System is airtight expect access channel. Therefore, under the airtight condition, the reduction of liquid accumulated value of double tank is the gas increment of airtight system. According to the change of tank sectional area and liquid level, the gas flow under current pressure and temperature is able to calculate. The gas flow under stander condition can be converted by gas equation.

Double Separation metering device from Sanjack Petro,  Dongying City, Shandong Province, China.

Double Separation Metering Device
Range of measurementGas measurement range0~30000 Nm3 /d
Liquid measurement range0~1500m3/d
Measurement accuracyGas flow±5.0%
Liquid flow±2.0%(0-400m3/d)
±3.0%(400-1500m3/d)
Nominal pressure2.5 Mpa(350psi)
Working temperature5-80℃
Power supplyAC480V 60Hz
Anti-hazard classificationExdⅡBT4
Signal outputData remote transmission(RS485 、modbus、Ethernet)

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