DM-3 Oil Well Three-phase Metering Device

Output of oil, water, and gas of oil wells are the most basic production parameters for oilfields to increase revenue and reduce expenditures, and realize intensive and digital production. However, due to different nature of the crude oil of each well, there are huge differences in fluid production, gas production, separated water , as well as the irregularities of oil well fluids and other complex factors, thus it is difficult to find a simple operation with strong adaptability, and measurement accuracy at home and abroad, which severely restrict  improvement of the information construction and intensive management of the oil field.  Our credible three-phase oil measurement technology is for this problem, especially for those oil wells that enter the high water period or high gas content.

Years of experience has made the industry aware of the truth that only when the crude oil is distinguished clearly can the measurement be accurate, that is, the production of oil, water, and gas in oil wells can only be accurately measured under the conditions of achieving stable separation of emulsified oil, free water, and natural gas. However, the existing three-phase separation dynamic measurement technology has complex structure, high control difficulty, and poor adaptability, which can only meet the measurement of oil wells with few good working conditions, and cannot be widely applied to oilfields with huge differences.

Shandong Dream Clean Tech Co., Ltd., as a professional company that provides industrial onsite instrumentation and control products and solutions, has accumulated knowledge and experience in this field for many years.  Exploration and experience of onsite technology in the petroleum industry for more than ten years, combine a full and in-depth understanding of the internal laws of the complex three-phase flow of oil, gas, and water, and reference to the advantages of existing technologies and processes, a new measurement method characterized as three-phase separation, rapid oil collection, and layer-by-layer scanning, static oil measurement separation cleverly proposed . The DM series oil well metering device developed on the basis of this new technology has the advantages of accurate and reliable measurement; strong adaptability; simple and convenient operation, etc.

It can not only adapt to the situation of range of oil, water, and gas in the oil field is over the order of magnitude, but also adapts to complex working conditions such as ultra-high water content, high gas content, intermittent incoming liquid, different physical properties of crude oil, and drastic changes in output. Under different conditions, the metering can maintain repeatable and verifiable high-precision. It has solved the problems in "accuracy, adaptability and operability" of the existing technology in the three-phase metering of oil wells. The new technology of three-phase oil measurement provides a reliable means for the digital production and operation of oil fields and information construction.

Product principle-three-phase separation, rapid oil collection, layer-by-layer scanning, static oil measurement

With the help of characteristics and kinetic energy of the produced fluid itself, integrates mature swirl separation, collision compounding, gravity sedimentation, negative pressure degassing and other technologies to realize the rapid separation of oil, water and gas. For oil-water metering, the unique oil-gathering structure and control technology are used. Even in the case of high water-cut or ultra-high water-cut, the oil-water layer in a stable state is naturally divided into several thin layers by using patented technologies such as oil-water analysis arrays. The oil-water layer is quickly scanned and measured in the transient stable state, and the average oil content of each thin layer is measured separately. The principle of mathematical calculus is used to accumulate and sum, so as to accurately obtain the production of the measured oil well within the measurement time, the net quantity of pure oil, free water and other parameters; for natural gas, the stable and accurate measurement of natural gas can be realized through rapid gas-liquid cyclone drainage and gas measurement method combined with meters.

Since the produced fluid is transformed from a generally relatively unstable dynamic measurement to a static emulsified oil and free water separated measurement , the accuracy, adaptability and controllability of the device are further ensured. 

The DM-3 oil well three-phase metering device adopts the unique innovative technology of three-phase separation, rapid oil collection, layer-by-layer scanning, and static oil measurement, which is the simplest and reliable method to quickly and accurately complete the oil , water and gas three-phase measurement.