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Timing method three phase metering separator

A technology of measuring separators and timing methods, which is applied in the direction of material inspection products, etc., can solve the problems of high cost and complex technical support

Inactive Publication Date: 2008-08-13
常荫铎
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  • Abstract
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  • Application Information

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Problems solved by technology

The technical support is complicated and costly. This main factor limits the application of these achievements to the three-phase metering of single wells in oil fields.

Method used

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  • Timing method three phase metering separator
  • Timing method three phase metering separator
  • Timing method three phase metering separator

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Experimental program
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Effect test

Embodiment approach

[0032] (2) Measurement principle and calculation formula of gas production test

[0033] Gas measurement is carried out by using the existing gas measurement technology of liquid drainage method in the oil field. Under this process condition:

[0034] The weight of the mixture after each measurement is fixed: q g =S*H*ρ 水 (Ton)

[0035] Its corresponding volume is:

[0036] Based on this known volume and the time t required to drain 3 (see five implementation modes), find the total liquid discharge speed of the three-phase fluid and the total volume of daily production of the three-phase fluid:

[0037] Measured daily liquid volume

[0038]

[0039] (Note H=H 1 =H 2 )

[0040] Formula ⑥ is the calculation formula for gas measurement by liquid drainage method under this process condition.

[0041] From the formula ⑥, it can be clearly seen that the three-phase metering of oil, gas and water is an organic metering whole, and the three metering parameters t 1 t...

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Abstract

A separator capable of measuring three phase of oil, gas and water in-phase is provided. In the process of measuring, only three time parameters displayed by three level gauge are marked and the measure of oil, gas and water is finished without using other specialties instrument. Weigh (ton) and volume (square) are obtained in-phase by time measuring of constant altitude of level gauge of mix solution and corresponding column level gauge, and the parameter Rho mix=t1 / t2*Rho water which is most difficult to calculate by consistency method for measuring water content is obtained and the content of water is calculated conveniently. The gas production is measured by zero position gauge timing of emission chamber, and the timing method of oil, gas and water is obtained. Three-chamber structure, pull rod valve, pneumatic valve and electromagnetic valve are combined with measuring signal, the switch of series measure is finished by self energy, and the frock match and cost of three-phase measure are simplified. In addition, many infection factors of water content measuring of consistency method is eliminated in technics and precision of water content measuring is ensured.

Description

a technical field [0001] The technical invention relates to a new type of metering separator capable of synchronously metering oil-water-gas three-phase fluid produced by an oil well without the need for other special instruments. Two background technology [0002] The current metering separators in domestic oil fields can only measure the output of oil-water mixture (unit, ton). Gas production is measured by flow meter or liquid discharge method, and water content is measured by manual on-site sampling and testing. Due to the poor representativeness of manual sampling (weekly, ten-day), after entering the high water-cut development stage, the measurement error caused by water-cut measurement becomes larger and larger, which becomes a difficult problem in oilfield production measurement. In the stage of high water cut development, the gas production rate drops significantly, and the gas production rate varies significantly among wells. The flow meter cannot guarantee that e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/28
Inventor 常荫铎
Owner 常荫铎
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