Oil well wellhead water content automatic test device and test method thereof

Abstract

The invention discloses an oil well wellhead water content automatic test device and a test method thereof. By means of the method, the water content of an oil-water mixture can be conveniently and rapidly measured at a wellhead to achieve fine monitoring of yield fluctuation of oil wells of an oil field and rapid monitoring of the water content of the oil wells. The device comprises an oil storage box, a floating ball plug, a water content measuring instrument, a back flowing tube and a one-way valve; the oil storage box is communicated with an oil well oil delivery manifold through a formedliquid inlet, and the oil storage box is located below the oil well oil delivery manifold; the input end of the water content measuring instrument is communicated with the oil storage box, and the output end is connected with the back flowing tube; a power device is arranged in the water content measuring instrument, and the power device is used for delivering the liquid in an oil storage tank tothe oil well oil delivery manifold through the back flowing tube; the floating ball plug is arranged in the oil storage box, and the density of the floating ball plug is smaller than oil; the one-wayvalve is arranged between the back flowing tube and the oil well oil delivery manifold, and the back flowing tube is communicated with the oil well oil delivery manifold in one direction from the backflowing tube to the oil well oil delivery manifold by means of the one-way valve.

Description

technical field [0001] The invention relates to the technical field of oil recovery in oil fields, in particular to an automatic testing device and a testing method for water content at the wellhead of an oil well. Background technique [0002] At present, in the production wells of all oil fields in the world, the production fluid of the oil well contains a certain proportion of produced water. In order to monitor the production water of the oil well in real time and accurately grasp the oil production of the oil well, each oil field must measure regularly The water content of the oil well produced fluid, because the water content of the liquid in the formation is changing, so the monitoring of the water content of the oil well is an important task in the daily production of the oil field. [0003] Usually, during normal production, the water cut of oil wells in the oil field needs to be measured every 10 days, and the monitoring period of some wells with large water cut fl...

AI Technical Summary

Problems solved by technology

Usually in various oil fields, the measurement of oil well water content needs to be obtained through the process of oil well head sampling, sample transportation and central laboratory testing. The monitoring results are often lagging behind, and the oil well production cannot be grasped in a timely and accurate manner.

At the same time, due to the large number of oil wells in each oil field and the scattered blocks, with the current monitoring methods, it is necessary to build a larger number of testing centers and invest more manpower, and it also greatly increases the number of staff sampling, sending samples and monitoring water content. The workload and intensity caused great difficulties to the normal production management on site

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