Sound source oil well liquid level automatic monitor

Abstract

The invention discloses a sound source oil well liquid level automatic monitor, and belongs to the technical field of oil well liquid level monitoring. The sound source oil well liquid level automatic monitor comprises an outer cylinder body, a microphone, an electromagnetic driving part and a control circuit board, wherein a sleeve joint is arranged at the front end of the outer cylinder body, a blocking plate is arranged in the outer cylinder body, and a nozzle communicating with the sleeve joint is arranged on the rear side of the blocking plate; the microphone is fixed on the front side of the blocking plate; the electromagnetic driving part comprises a fixing ring, a coil, a static iron core, a movable iron core, a piston and a spring, wherein the fixing ring is arranged behind the blocking plate, the coil is wound outside the fixing ring, the static iron core is fixedly inserted into the rear part of the fixing ring, the movable iron core is movably inserted into the front part of the fixing ring, a piston cavity is formed between the blocking plate and the fixing ring, the piston is fixed at the front end of the movable iron core and is matched in the piston cavity, and the spring is supported between the fixing ring and the piston and sleeves the movable iron core; and the control circuit board is installed on the rear side of the fixing ring and is electrically connected with the microphone and the coil. According to the sound source oil well liquid level automatic monitor, gas can be prevented from being discharged outwards during testing.

Description

technical field [0001] The invention relates to the technical field of oil well liquid level monitoring, in particular to an automatic sound source oil well liquid level monitor. Background technique [0002] The dynamic fluid surface depth parameter of an oil well is known as the "pulse of the oil well". In the process of oil well production, oil well dynamic fluid is of great significance to improve oil recovery efficiency and ensure the safety of equipment operation. By measuring the dynamic liquid level position, parameters such as the geological reserves of the oil field and production planning can be obtained, which is also the key to determine the oil well production. An important basis for the ability and selection of production methods. [0003] The sound source oil well liquid level automatic monitor is designed for monitoring the dynamic liquid level data in the well. Its working principle is: when measuring, start the solenoid valve to deflate to generate infras...

AI Technical Summary

Problems solved by technology

[0004] The existing sound source oil well liquid level automatic monitor will discharge gas during normal testing. On the one hand, there may be flammable and explosive associated gas in the casing annulus, and the associated gas will explode when it comes into contact with air. On the other hand, when the casing pressure is high and the liquid level fluctuates greatly, the oil concentration in the associated gas is high, and the temperature of the test equipment and the casing mouth is generally lower than that of the downhole. As time goes by, the oil and gas Condensate will be formed at the casing mouth, and a small amount of liquid will be brought out when the gas is discharged. Improper handling will pollute the appearance of the equipment and the wellhead, which may bring environmental risks

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