A dual-piston fluid production metering device for oil wells and its metering method
A metering device and liquid production rate technology, which is applied in measurement, earthwork drilling, wellbore/well components, etc., can solve the measurement error of crude oil production, talk about real-time measurement, and realize low-cost and accurate measurement of oil wells, etc. problem, to achieve the effect of reasonable structure, improved measurement accuracy and ingenious conception
Active Publication Date: 2021-05-18
青州市春晖科技发展有限公司
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[0004] The above-mentioned type of crude oil meter is calculated and detected through the capacity of the first cylinder and the second cylinder, but the crude oil produced by the oil well is generally associated with gas, and a large amount of gas will be released during the resource extraction process. The gas will be lifted out of the oil well together with the oil-water mixture, and when the gas enters the first cylinder and the second cylinder, it will move the piston together with the oil-water mixture, which will cause errors in the measurement of crude oil production, and then it will not be possible to control the oil well. Low-cost and accurate measurement of the yield per unit, not to mention real-time measurement
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[0044] Example: such as figure 1 As shown, a dual-piston liquid production metering device for oil wells includes a main pipeline 1 and a liquid outlet pipeline 9. The liquid inlet end of the main pipeline 1 is communicated with a buffer separator for separating gas in crude oil. Gas device 2, the liquid outlet end of the main pipeline 1 is connected with a metering device 3 for measuring the crude oil production volume of the oil well, the liquid outlet end of the metering device 3 is communicated with the liquid outlet pipeline 9, and the buffer gas distribution device 2 and metering device 3 are controlled by the monitoring system.
[0045] With this design, the crude oil produced by a single oil well can first enter the buffer gas separator 2 for buffering, so that the gas in the crude oil is discharged, and then the crude oil that has been exhausted is passed into the metering device 3 through the main pipeline 1, and the metering device 3 pairs The crude oil liquid prod...
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The invention discloses a double-piston liquid production metering device for oil wells, which comprises a main pipeline and a liquid outlet pipeline. The liquid inlet end of the main pipeline is connected with a buffer gas separator for The liquid outlet end of the pipeline is connected with a metering device for measuring the crude oil liquid production of the oil well, the liquid outlet of the metering device is connected with the liquid outlet pipeline, and the buffer gas distribution device and the metering device are controlled by the monitoring system. The present invention can The crude oil produced by a single oil well is degassed to avoid the presence of gas in the crude oil and affect the accurate measurement of the crude oil liquid production. It can also accurately measure the crude oil liquid production, the measurement data is accurate, and the overall structure is simple and easy to use.
Description
technical field [0001] The invention relates to a crude oil metering device, in particular to a double-piston liquid production metering device for oil wells and a metering method thereof, belonging to the technical field of oil well metering devices. Background technique [0002] In oil production operations, it is necessary to know in real time the crude oil production of each oil well and some physical and chemical indicators of crude oil, such as liquid production. The existing monitoring of oil well liquid production is measured by sensors. There are various sensors in the When used on oil wells, since oil contains water, gas, asphalt, sand, etc., the sensor will appear abnormal after a period of use. [0003] In order to solve the above problems, a crude oil meter has appeared on the market. For example, the patent number is: 201510233634.6, which discloses a single-well crude oil meter and its metering method applied to pumping units. The meter includes: the first Cy...
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IPC IPC(8): E21B47/00E21B43/34
CPCE21B43/34E21B47/00
Inventor 鲁玉庆宋俊述蔡权刘骏王振
Owner 青州市春晖科技发展有限公司