Single-well and three-phase metering device
A metering device, three-phase technology, applied in measurement, wellbore/well components, and production fluids, etc., can solve the problems of insufficient, inaccurate measurement of oil, gas, and water data, and insufficient separation of gas and liquid phases. To achieve the effect of sufficient separation and improved accuracy
Inactive Publication Date: 2014-06-04
SHANGHAI YINUO INSTR
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[0002] The single-well three-phase metering device in the existing oilfield is structured as a single cyclone separator. Due to the use of a single mixed liquid separation method, the gas-liquid two-phase separation is not thorough and sufficient, making single-well metering of oil, gas, and water The data is not accurate enough
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[0014] A single-well three-phase metering device, the diameter of the two ports of the primary expansion pipe 15 is reduced, and it is tapered, one end communicates with the mixed liquid inlet pipe 16 at the wellhead, the other end communicates with the conical cyclone separator 12, and the top of the primary expansion pipe Communicate with the secondary expansion pipe 9;
[0015] The secondary expansion pipe 9 is arranged on the top of the oil storage tank, and its upper port diameter is reduced, which is conical, and communicates with the gas phase pipeline 4. The gas phase pipeline 4 communicates with the mixed liquid outlet pipe 17 through the gas dual-rotor flowmeter 1, and the side of the secondary expansion pipe Connected with the primary expansion tube.
[0016] The conical cyclone separator 12 is fixed on the upper part of the inner cavity of the oil storage tank 14 and communicates with the primary expansion pipe 15;
[0017] An umbrella-shaped oil-gas separation pl...
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Provided is a single-well and three-phase metering device. The diameters of two ports of a primary expansion pipe decrease, the two ports are conical, one end of the primary expansion pipe is communicated with a wellhead mixing liquid inlet pipe, the other end of the primary expansion pipe is communicated with a conical cyclone separator, and the top end of the primary expansion pipe is communicated with a secondary expansion pipe; the secondary expansion pipe is arranged at the top of an oil storage tank, the diameter of an upper port of the secondary expansion pipe decreases, the upper port is conical and is communicated with a gas-phase pipeline, the gas-phase pipeline is communicated with a mixing liquid outlet pipe through a double-rotor gas flowmeter, and the side portion of the secondary expansion pipe is communicated with the primary expansion pipe; the conical cyclone separator is fixed to the upper portion of an inner cavity of the oil storage tank and is communicated with the primary expansion pipe; an upper liquid level switch and a lower liquid level switch are arranged on the outer side wall of the oil storage tank; the bottom of the oil storage tank is sequentially communicated with a pump, a control valve, a mass flowmeter and the mixing liquid outlet pipe through a liquid-phase pipeline; the two liquid level switches, the double-rotor gas flowmeter, the mass flowmeter, the control valve and the pump are connected with a controller through cables. The single-well and three-phase metering device can sufficiently and thoroughly separate gas from liquid in mixing liquid generated by a single well, and improve the metering accuracy.
Description
technical field [0001] The invention relates to a device for measuring the oil production rate, gas production rate and water content of a single well in an oil field, in particular to the improvement of its structure. Background technique [0002] The single-well three-phase metering device in the existing oil field is structured as a single cyclone separator. Due to the use of a single mixed liquid separation method, the gas-liquid two-phase separation is not thorough enough, which makes the single-well metering of oil, gas, and water The data is not accurate enough. Contents of the invention [0003] The invention provides a three-phase metering device for a single well in an oil field, which can measure the density of oil and water on-line, and calculate the quality of the oil and water at the same time, so as to achieve the purpose of three-phase metering of oil, gas and water. [0004] A single-well three-phase metering device, characterized in that: [0005] The d...
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IPC IPC(8): E21B47/00E21B43/34
Inventor 郭井和康剑张治洲崔王卿郭振明夏刚傅金林孙威耿长俊郑海涛
Owner SHANGHAI YINUO INSTR