Oil field ground wet steam flow dryness measuring device

Abstract

The invention discloses an oil field ground wet steam flow dryness measuring device and relates to a device for measuring gas-liquid two-phase mixed fluid data such as the flow. The oil field ground wet steam flow dryness measuring device solves the problems that existing devices used for measuring parameters such as pressure, flow and dryness of wet saturated steam used for oil field steam injection are low in measuring precision, poor in accuracy, large in size and the like in practical usage. The oil field ground wet steam flow dryness measuring device comprises a flow divider, a separator and a measuring mechanism; the flow divider is connected with an inlet of the separator; the measuring mechanism is provided with measuring components in an outlet pipeline of the separator; the flow divider is a multipoint multistage flow dividing device. The oil field ground wet steam flow dryness measuring device has the advantages of being small in weight and size, compact in structure, easy to manufacture, convenient to maintain and use, high in measuring precision, being mainly used for measuring relative parameters of the gas-liquid two-phase mixed fluids used for oil fields and the like.

Description

technical field [0001] The invention relates to a device for measuring fluid, in particular to a device for measuring data such as the flow rate of gas-liquid two-phase mixed fluid. Background technique [0002] At present, with the large-scale application of new technologies such as oil field steam huff and puff and steam flooding, higher requirements are put forward for the industrial application of steam parameter measurement technology, and the range of steam flow and dryness monitored is also wider. Different thermal recovery blocks and different thermal recovery processes have very different requirements for steam parameters, and the monitoring parameter interval of the measuring device is required to be wider and more accurate. However, since the steam used for steam injection in oil fields is basically wet saturated steam, changes in any parameter such as pressure, flow rate, dryness, pipe diameter, etc. will cause a huge change in the two-phase flow pattern of wet s...

AI Technical Summary

Problems solved by technology

However, since the steam used for steam injection in oil fields is basically wet saturated steam, changes in any parameter such as pressure, flow rate, dryness, pipe diameter, etc. will cause a huge change in the two-phase flow pattern of wet saturated steam, affecting oil field steam injection. Measurement errors of flow and dryness

The existing patent No. 98113068 of Xi'an Jiaotong University "Measurement method of flow of split-phase and phase-type two-phase fluid" and the patent of No. 200620009043.7 "subcritical steam-water two-phase flow meter" of Sinopec Shengli Oilfield Branch Oil Production Technology Research Institute have passed The orifice plate sampling fluid is used in the measurement of steam parameters in different processes of heavy oil thermal recovery, and there are mainly shortcomings such as low measurement accuracy, poor accuracy and large structural volume.

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