Single well remote measurement and control method and device

Abstract

The invention relates to a metering measurement and control method, in particular to a single-well remote metering measurement and control method and a single-well remote metering measurement and control device. The device is characterized by at least comprising a container and an oil storage tank, wherein the container is used for metering single-well produced liquid; and the oil storage tank is used for storing the single-well produced liquid. The method comprises the following steps of: detecting the single-well produced liquid which enters the container by using the container; when the single-well produced liquid in the container is equal to a set value, transferring the single-well produced liquid which is equal to capacity limitation of the container into the oil storage tank by using a control mechanism, and metering the single-well produced liquid once; and after the single-well produced liquid is transferred into the oil storage tank, re-controlling the single-well produced liquid to enter an empty container, and circulating the steps. The invention provides the single-well remote metering measurement and control method and the single-well remote metering measurement and control device, which are convenient for installation, higher in anti-corrosion capacity, simple in process and low in manufacturing cost.

Description

technical field [0001] The invention relates to a measurement, measurement and control method, in particular to a single well remote measurement, measurement and control method and device. Background technique [0002] The remote single well liquid production meter is used in the measurement of liquid production and real-time water cut measurement in medium and low-yield oilfields. At the same time, the measured data is transmitted to the oilfield monitoring room through the remote network at a set time interval, and receives oilfield monitoring. The control signal of the chamber controls the stop and start of the pumping unit. [0003] The method and device for remote measurement, measurement and control of a single well are related to the liquid level measurement technology of an oil tank. [0004] Existing common oil tank liquid level measurement techniques include: manual ruler detection. Various measurement technologies have different advantages and disadvantages, so ...

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Problems solved by technology

[0008] 1) The viscosity of crude oil varies with the seasons, especially in the northern winter when crude oil becomes lumpy, and the existing technology cannot accurately measure its liquid level;

[0009] 2) The water content of crude oil changes with the production process, that is, the density of the liquid in the oil storage tank also changes. The original technology will produce large errors when measuring the weight of the liquid in the oil tank;

[0010] 3) The shapes of oil well storage tanks are different, and the original technology has great shortcomings in measuring the weight of produced liquid;

[0011] 4) The liquid level of the oil storage tank of the pumping well with medium and low production rate changes slowly. Affected by the measurement accuracy, it is currently impossible to identify whether the oil well is producing liquid;

[0012] 5) The original oil tank liquid level technology cannot measure the water content of the current oil well production;

[0013] 6) The original technology cannot accurately identify the historical records of the fluid production change of the oil well;

[0014] 7) The most important thing is that the original technology is suitable for single well liquid production measurement and water cut measurement. The instrument is expensive, ranging from tens of thousands to hundreds of thousands, which is impossible for single wells with a large number of oil fields

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