An oilfield production wellhead production flow metering device

By installing metering, centrifugal, hydraulic, and regulating components in the oilfield wellhead production fluid metering device, the problem of insufficient metering accuracy for oils of different viscosities is solved, achieving higher metering accuracy and device stability, and preventing filter clogging.

CN120331757BActive Publication Date: 2026-01-27SHENGLI OILFIELD SHENGLI PETROLEUM INSTR FACTORY
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Patent Information

Application Number
CN202510679415.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-01-27
Estimated Expiration
2045-05-26

AI Technical Summary

Technical Problem

Existing oilfield wellhead production measurement devices suffer from reduced accuracy when dealing with oils of varying viscosities, especially high-viscosity oils which result in poor buffering and compromised measurement accuracy.

Method used

An oilfield wellhead fluid production metering device was designed. By setting up metering, centrifugal, hydraulic and regulating components in the tank, the rotation speed of the drive component and the movement of the buffer plate are adjusted according to the viscosity difference of the oil, so as to achieve effective buffering and metering of oil with different viscosity. A recovery component is set up to perform secondary filtration and clean the filter screen.

Benefits of technology

It improves the metering accuracy of oils with different viscosities, reduces the error of the level gauge, prevents filter clogging, and ensures the stable operation of the metering device.

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Abstract

The application discloses an oilfield production wellhead liquid production metering device, and belongs to the oilfield production field. The device comprises a filter kettle, a filter box is fixedly connected below the filter kettle, a conveying pipe is fixedly connected to the right side of the filter kettle, a tank body is fixedly connected to the outer surface of the conveying pipe, a rotating shaft is penetrated through the conveying pipe and is in sliding connection with the conveying pipe, the rotating shaft is penetrated through the upper side of the tank body and is in rotary connection with the tank body, a driving piece is arranged at the lower end of the rotating shaft, a support frame is fixedly connected to the left side of the tank body, and a rotating rod is penetrated through the upper side of the support frame and is in rotary connection with the support frame. The metering piece is arranged in the tank body to measure the liquid production. If the oil viscosity is low when the oil is conveyed from the conveying pipe to the tank body, the driving piece is rapidly rotated by the impact, the centrifugal piece is driven to pull the hydraulic piece, the buffer sheet is moved to the lower end of the conveying pipe, and the buffering effect is achieved to reduce the error caused by the liquid level meter floating due to the waves.
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