Oil well online closure metering device

Abstract

The invention discloses an oil well on-line flow closure metering device. The oil well on-line flow closure metering device comprises a metering shell, wherein an oil inlet and an oil outlet are formed in the upper end and the lower end of the metering shell respectively, a separating plate is arranged in the middle of the interior of the metering shell, and an inner cavity of the metering shell is divided by the separating plate into a preservation cavity and a metering cavity; an overflow pipe and a metering inlet are arranged on the separating plate, and the preservation cavity and the metering cavity are communicated through the overflow pipe and the metering inlet; a weighing hopper is supported in the metering cavity through weighing sensors, an upper opening of the weighing hopper is opened, and is correspondingly communicated with the metering inlet, and a metering outlet is formed in the bottom surface of the weighing hopper; a control device comprises two gravity valves, wherein the gravity valves are arranged in a hanging mode, and correspond to the metering inlet and the metering outlet respectively; the control device is electrically connected with the weighing sensors, and is used for executing alternate control over opening and closing movement of the metering inlet and the metering outlet according to data measured by the weighing sensors. The oil well on-line flow closure metering device has the advantages that metering accuracy is high, the oil well on-line flow closure metering device does not need to be attended by workers, the liquid production capacity can be metered in real time, manual metering can be replaced, pressure-bearing metering can be achieved, working reliability is high, and the service life is long.

Description

technical field [0001] The invention relates to a metering device, in particular to an oil well online interception metering device. Background technique [0002] At present, most oil production wells in oil fields use tipping bucket measurement, manual measurement in the measurement room, flow meters and other measurement methods. In practical application, although the measurement accuracy of manual measurement is high, the measurement speed is slow, and it must be monitored by humans in real time. The liquid production volume can only be calculated at the end, and the measurement is relatively cumbersome. Using the tipping bucket measurement method, the short-term measurement error is large, and the frequent flipping of the tipping bucket will cause a decrease in work reliability, so frequent maintenance is required, resulting in a large maintenance workload. The flowmeter measurement method is not suitable for measuring crude oil. Due to the high viscosity of crude oil,...

AI Technical Summary

Problems solved by technology

In practical application, although the measurement accuracy of manual measurement is high, the measurement speed is slow, and it must be monitored by humans in real time. The liquid production volume can only be calculated at the end, and the measurement is cumbersome

Using the tipping bucket measurement method, the short-term measurement error is large, and the frequent flipping of the tipping bucket will cause a decrease in work reliability, so frequent maintenance is required, resulting in a large maintenance workload

Flow meter measurement method is not suitable for measuring crude oil, because the viscosity of crude oil is high, it will cause frequent damage to the flow meter

[0003] In short, there is no good online metering device for oil wells at present, which greatly restricts the online metering of crude oil, brings many changes to production management, and also increases production energy consumption, which brings disadvantages to saving and reducing emissions. influences

Images