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Single-well remote metering measurement and control method and device

A measurement and control method, measurement and control device technology, applied in the direction of measurement, earthwork drilling, wellbore/well components, etc., can solve the problems of inaccurate measurement of liquid level, inability to measure the water content of production fluid, large errors, etc., so that it is not easy to maintain Effect

Active Publication Date: 2011-09-14
SHAANXI HUACHEN GASOLINEEUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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Embodiment 1

[0038] like figure 1 As shown, based on an embodiment device of the above-mentioned single well remote metering and control method, it at least includes: a container for measuring single well production liquid and an oil storage tank for storing single well production liquid, and the container is turned over The shaft 4 is fixed on the frame 9, and the turning shaft 4 is connected with the control mechanism 1 through a reducer. There is a capacitive oil-water measurement sensor 7 in the container, a weight and temperature control unit 6 at the bottom of the container, and the top of the container corresponds to the liquid production of a single well. Enter the upper end inlet 14 of the container, the bottom of the lower end of the container corresponds to the funnel 12, and the funnel 12 communicates with the oil storage tank; the output end of the control mechanism 1, the oil-water measurement sensor 7 and the output end of the weight and temperature control unit 6 are electri...

Embodiment 2

[0040]What is different from the embodiment is that the container may have a symmetrical structure formed by the first container 5 and the second container 13, the first container 5 and the second container are symmetrical with respect to the turning shaft 4, and the turning shaft 4 is connected to the left and right racks through the left and right bearings. 9 bearing connection, capacitive oil-water measuring sensor 7 is arranged in the first container 5 and the second container 13, weight and temperature control unit 6 are arranged at the bottom, the first container 5 and the second container 13 are sealed around by the casing. The working principle and process are as follows: single well production fluid flows into parts 5, 6 and 2 from the entrance of the upper end of the measuring instrument, and measures the weight of the inflowing production fluid, the water content of the production liquid, and the liquid temperature in part 5 in real time at fixed intervals. Part 2 ju...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00
Inventor 李建新王化民李白赖晓虎
Owner SHAANXI HUACHEN GASOLINEEUM TECH
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