It is understood that petroleum sulfonate is a kind of surfactant. In the process of oil displacement, petroleum sulfonate can reduce the interfacial tension, emulsification and solubilization of oil and water to achieve the purpose of increasing the rate of adoption. At present, the main oilfields in the eastern part of China are in the late stage of secondary oil recovery for waterflooding development. After undergoing secondary oil recovery, about 60% of the crude oil resources are still not recovered. The tertiary oil recovery technology based on polymer flooding is becoming part of the The main measures to increase production in the old oil fields. According to the experimental results, using more than 130 tons of crude oil per ton of petroleum sulfonate and its unique technology can increase oil recovery from high permeability reservoirs by 20% to 30%. According to industrial tests in Shengli Oilfield, the average daily output per well of 10 wells has increased by 15 tons, and now production is four times that before using this technology. The increase in crude oil production will be equivalent to half of the total crude oil output of these oil fields in the past 50 years.
â— valve reduces high upstream pressure and produce a steady lower downstream
pressure, free from the influence of upstream pressure or flow changes. â— valve is either less dynamic pressure can be less static pressure. â— valve downstream pressure can be based on system requirements continuously adjustable within a certain range. â— can quickly close the valve in case of sudden closure of its upstream and downstream pipelines to reduce static pressure. Under normal circumstances, the proceeds valve pressure is not higher than 10% of the corresponding dynamic pressure. â— adjustable Pressure Reducing Valve from the pipeline pressure to start, the pilot valve automatic control, both less dynamic pressure, but also reduced static pressure reducing valve. The valve will reduce the high upstream pressure and produce a steady lower downstream pressure from the upstream pressure and flow changes. The downstream pressure can be obtained by adjusting the bolts on the decompression valve guide to change. When the upstream pressure is down to the desired pressure setting, the pilot valve to the main valve to open to the greatest extent. When downstream pressure exceeds the set pressure value (for example, the static pressure relief valves downstream of pipeline water does not flow in the fire hydrant system case), the valve immediately shut down to reduce the static pressure, so not only can meet the routine decompression of the water supply system to keep the system requirements and more stringent fire hydrostatic, high reliability, to avoid the problem of string pressure systems from the fundamental.
Float Valve,Pressure Reducing Valve,Pressure Relief Valve,Flow Control Valve
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