Main devices: Test separator, regulating valve, various pressure, liquid level, temperature, measuring instrument, data acquisition and control system. Characteristic: 1. Three phase test separator skid, in addition to the high-efficiency separation function of oil, gas and water, is equipped with base type pneumatic pressure, liquid level controller and pneumatic membrane regulating valve to realize full-automatic control of test separator pressure, oil level and oil-water interface. 2. Adopt orifice metering device and three recorders to measure the flow of natural gas. The standard orifice plates with different apertures can be replaced under the condition of no production stop according to the actual flow on site, which has the function of adapting to the testing requirements of different oil and gas wells. 3. In order to solve the problem of uncertainty of crude oil production change during the test process, double circuit regulation and parallel metering are adopted in metering and control, namely, two pneumatic diaphragm regulating valves and two scraper or turbine flow meters are used for oil level control to achieve accurate control and metering. 4. The instrument air source for the pneumatic instrument is from the natural gas separated from the separator, which is dried and filtered for the use of the pneumatic instrument. At the same time, it is also equipped with external purified compressed air interface, which improves the field adaptability of the test separator. 5. The test separator is equipped with double safety valve and bursting disc system, which effectively ensures safe operation. Specifications and parameters of three-phase test separator skid S/N Parameter Model 3ps-120 / 16 3ps-120 /15.6 3ps-240/16 3ps-240 / 16 1 Flow (@ 0 ℃ 101.325kpa) 120×104Nm3/d 120×104Nm3/d 240×104Nm3/d 240×104Nm3/d 2 Medium pressure 13.8MPa 13.8MPa 13.8MPa 13.8MPa 3 Design pressure 16MPa 15.6MPa 16MPa 15.6MPa 4 Medium temperature 60℃ 100℃ 60℃ 100℃ 5 Design temperature 80℃ 120℃ 80℃ 120℃ 6 Separator specification DN1000×3500   δ=52 DN1000×3500  δ=52 DN1000×5000   δ=52 DN1000×5000   δ=52 7 Inlet liquid pipe diameter DN125 DN150 DN200 DN200 8 Gas phase pipe diameter DN100 DN125 DN150 DN200 9 Drain water pipe diameter DN65 DN65 DN100 DN100 10 Drain oil pipe diameter DN50 DN50 DN80 DN80 11 Overall dimension (mm) 6800×2400×3000 6800×24003000 9000×2800×3200 9800×2800×3400 12 Measurement accuracy ±5% ±5% ±5% ±5% 13 Separation accuracy and efficiency 10um/99.5% 10um/99.5% 10um/99.5% 10um/99.5% 14 Explosion proof grade / protection grade of field electrical instruments ExdⅡBT4/IP65 ExdⅡBT4/IP65 ExdⅡBT4/IP65 ExdⅡBT4/IP65 15 Design service life of skid 15 year 15 year 15 year 15 year 16 Equipment outline structure Frame skid Frame skid Frame skid Frame skid