| 摘要 |
FIELD: oil industry. ^ SUBSTANCE: invention refers to oil industry and can be used when determining liquid level in the tube space of the well equipped with electric centrifugal pump. Method of determining liquid level in the tube space of the oil well equipped with electric centrifugal pump involves determination of liquid level by using geophysical methods as per the measurement data of gamma-gamma densitometre as to scattering, which were obtained at different times during the pump operation. In addition, measurements with gamma-gamma densitometre as to scattering are performed before the pump is started, then immediately after the pump is started, and after that uninterruptedly during the pump operation. At that, difference between the liquid level measured immediately after the pump is started and the liquid level measured before the pump is started is accepted as H reference level difference. Actual liquid level at each moment during the pump operation is determined by taking H reference level difference from the liquid level measured at each moment during the pump operation. The pump is deactivated when actual liquid level reaches the pump installation level of 5-7 m. ^ EFFECT: improving liquid level determining accuracy, decreasing the number of emergency situations, increasing the life time of electric centrifugal pumps, and increasing efficiency and output of oil. ^ 1 dwg |
