Super metering device for petroleum output fluid

Abstract

The invention discloses a super metering device for petroleum output fluid, and belongs to the technical field of petroleum oil well output fluid metering. The super metering device comprises a supercyclone separator, a crude oil inlet, an impurity particle storage device, a fluid flow meter, a bypass system, a crude oil outlet, a control cabinet, a gas flow meter, a butterfly-shaped spiral pipe,a base, a main pipe, short and straight pipes, a first valve and a supporting rack. The impurity particle storage device is provided with a mixture inlet, and has the effect that for impurity particles and partial fluid which enter the impurity particle storage device, under the effect of fluid kinetic energy and a gravity field, objects with a large mass precipitate and remain, objects with a relatively small mass are extruded out, returning to the cyclone separator is performed to realize separation, and the first valve is arranged below the impurity particle storage device and used for maintaining of equipment maintenance staff. The super metering device is small in structural size, low in price, high in adaptability, convenient to install and capable of being widely applied to circulating measurement of large and small blocks, marginal areas and low-yield areas.

Description

technical field [0001] The invention belongs to the technical field of petroleum oil well output liquid measurement, in particular to a super oil output liquid meter. Background technique [0002] Crude oil production liquid is a kind of mixed liquid. Due to the influence of many factors such as medium sand, water, gas, foamy oil, high viscosity, and irregular incoming liquid, there are many problems in the wellhead metering device of the oil well. A typical one One is that the measurement is inaccurate and the error is large; the other is that the structure is complex and the cost is high and the environment is polluted. [0003] The metering of oil wells in existing oilfields mainly relies on gas-liquid two-phase separation metering. This measurement method is generally adopted and accepted in China, but due to many factors such as incomplete separation of the separator, easy fouling and wax formation on the inner wall, low flow rate of some oil wells, intermittent oil pr...

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Problems solved by technology

The problems of this method are complex structure, large volume, high cost and frequent maintenance.

However, it is necessary to put the tipping bucket into a large tank for work, so the volume is large and the cost is high. According to the mechanical structure, when the weight of the tipping bucket is changed from the oil discharge state to the oil intake state, it is not completed in an instant, but within a certain period of time. During this period, a part of the liquid is lost without measurement, the higher the output, the greater the error, so this error must be calculated

In addition, repeated weighing of some crude oil hanging on the wall cannot solve the problem

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