Vehicle-mounted single-well multiphase flow metering device
A metering device and multiphase flow technology, applied in the field of vehicle-mounted single well multiphase flow metering device, can solve the problems of metering device resource waste, incomplete gas-liquid separation, and inaccurate metering, so as to save manpower and material resources and facilitate oilfield management , Thorough effect of gas-liquid separation
Pending Publication Date: 2017-08-11
SHANGHAI YINUO INSTR
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[0004] The purpose of the present invention is to provide a vehicle-mounted single well multiphase flow metering device to solve the technical problems of incomplete gas-liquid separation, inaccurate metering, waste of resources and high cost of the metering device in the prior art
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[0031] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.
[0032] see Figure 1 to Figure 5 , a vehicle-mounted single-well multiphase flow metering device, located between the wellhead of the oil well and the mixed transportation pipeline 6, the device includes a gas-liquid separation tank 1, a gas phase pipeline 2, a liquid phase pipeline 3, a first branch pipeline 4 and a mobile trolley 22 .
[0033] The inlet of the gas-liquid separation tank 1 is connected to the wellhead of the oil well. The upper end of the gas-liquid separation tank 1 is provided with a g...
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The invention discloses a vehicle-mounted single-well multiphase flow metering device. The vehicle-mounted single-well multiphase flow metering device comprises a gas-liquid separation tank, an inlet of the gas-liquid separation tank is connected with the mouth of an oil well, a gas phase outlet is formed in the upper end of the gas-liquid separation tank, a liquid phase outlet is formed in the lower end of the gas-liquid separation tank, and an impact board is arranged at the position, at the inlet, in the gas-liquid separation tank. Gas enters a mixed delivery pipeline through a gas phase pipeline, and liquid enters the mixed delivery pipeline through a liquid phase pipeline; low pressure can be formed in the gas-liquid separation tank through a pump on the liquid phase pipeline, which is beneficial to gas-liquid separation; an impact separation method and a low-pressure separation method are combined, so that separation is more thorough, and the measurement result is more accurate. A first branch pipeline is communicated with the liquid phase outlet and the mixed delivery pipeline, and a first liquid one-way valve is arranged on the first branch pipeline; when the pump is not started or breaks down, but much liquid exists in the gas-liquid separation tank, the liquid flows into the mixed delivery pipeline through the first liquid one-way valve. The gas-liquid separation tank is arranged on a moving trolley and can meter any oil well in a moving mode.
Description
technical field [0001] The invention relates to the technical field of oil well metering, in particular to a vehicle-mounted single well multiphase flow metering device. Background technique [0002] Single well metering is an important task in oilfield production management. Accurate metering has important guiding significance for oil wells to grasp reservoir conditions and formulate production plans. As far as the two-phase separation density method currently used in various oilfields in China is concerned, it mainly uses the centrifugal force to separate gas and liquid through the cyclone separation device. At different times, its liquid and gas output conditions are all different, and even fluctuate greatly, so it often cannot achieve the desired effect. Since the gas-liquid separation is not complete, when the gas-liquid separation is performed, the measurement result is inaccurate and the error is large, so it cannot be used as a reference standard. [0003] In addit...
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IPC IPC(8): E21B47/00E21B43/34B60P3/00
CPCE21B43/34E21B47/00B60P3/00
Inventor 崔王卿
Owner SHANGHAI YINUO INSTR