Unstable period and treatment methods for newly opened oil wells

When a well is repaired and production begins, the oil pressure is relatively unstable during the initial period of starting the well, and it is difficult to control the oil pressure. The main reason is that the well fluid contains flushing fluid, dead oil, etc., which can easily block the oil nozzle. Generally, production starts with a frequency conversion of 40 Hz, metering is introduced, output is adjusted, the oil pressure control range is determined, and then the oil nozzle is adjusted according to the oil pressure. At the beginning, the pressure was held more frequently, so the nozzle was gradually enlarged to a more suitable scale. At this time, the situation of clogging the nozzle improved. When the flushing fluid and dead oil were pumped out, the well fluid was a relatively uniform formation fluid, and the electric pump operated more stably. Therefore, the frequency was gradually increased to 50 Hz. After observing the stability of the current, oil pressure, and liquid production, the power frequency operation was switched on. Tianjin Electric Submersible Pump Manufacturer

The treatment method for oil wells with significant changes in water content:

Oil wells with significant changes in water content in the well fluid exhibit fluctuations in current, fluctuating oil pressure, and easy blockage of the oil nozzle during production. For this type of well, it is advisable to slightly enlarge the nozzle when the oil pressure rises, then increase it again, and do not rush to achieve success. After a period of production, it will gradually stabilize. Tianjin Electric Submersible Pump Manufacturer

The correct treatment method for oil wells with high gas content:

For oil wells with high gas content, during the production process, gas causes significant damage to the electric pump and the pump efficiency is not high. For such oil wells, it is generally recommended to control the casing pressure as low as possible to increase the dynamic liquid level, increase the submergence of the pump, reduce the separation of oil and gas around the pump suction port, improve pump efficiency, increase production, and also prolong the pump life. Tianjin Electric Submersible Pump Manufacturer

The correct treatment method for oil wells that frequently hold pressure:

For the adjustment of oil wells that often hold pressure (especially those with severe emulsification), the method of gradually enlarging the oil nozzle should be adopted. That is, when the oil pressure rises, slightly enlarge it to restore normal oil pressure, wait for the oil pressure to rise again, and then enlarge it again. Gradually enlarging the oil nozzle can always find a balance point, and the pressure holding situation will change, and the oil well can also produce relatively stably. Tianjin Electric Submersible Pump Manufacturer

The correct treatment method for oil wells with high casing pressure:

When the casing pressure of the oil well is relatively high, if the speed of releasing the casing pressure is fast, the pressure in the casing annulus rapidly decreases. Although the dynamic liquid level begins to rise, the rising speed is slow. However, the pressure around the suction port of the pump drops quickly, leading to intensified oil gas separation. As a result, the liquid lifted by the pump decreases and the operating current decreases. So when releasing the sleeve pressure, it is necessary to slow down and pay close attention to the changes in current and oil pressure to prevent underload. Tianjin Electric Submersible Pump Manufacturer

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