Oil field surface wet steam flow dry degree measuring device

Abstract

The invention relates to a device for measuring wet steam flow and dryness on the surface of an oil field, and relates to a device for measuring data such as the flow rate of a gas-liquid two-phase mixed fluid. It solves the problems of low measurement accuracy, poor accuracy and large structure volume in the actual use of existing devices for measuring parameters such as pressure, flow rate and dryness of wet saturated steam used for steam injection in oil fields. It includes a splitter, a separator and a measuring mechanism, the splitter is connected to the inlet of the separator, the measuring mechanism is provided with measuring components in the outlet pipeline of the separator, the The shunt is a multi-point multi-stage shunt device. The invention has the advantages of small weight and volume, compact structure, easy manufacture, convenient maintenance and use, and high measurement accuracy, and is mainly used for measuring and calculating relevant parameters of steam-water two-phase fluid used in oil fields.

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

Existing patents such as No. 98113068 "Split-flow and phase-separated two-phase fluid flow measurement method" of Xi'an Jiaotong University and No. 200620009043.7 "subcritical steam-water two-phase flowmeter" patent 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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