The article elaborated the summary to coagulate flowmeter of analyse natural gas measures fundamental, company of foreign much home coagulates analyse natural gas is metric and ongoing technical comparison, study the current situation and its technology line domestic and internationally, point out the part deserves the research way of attention, for home the development of congener appearance and type selecting provide reference.

The keyword coagulates flowmeter of analyse natural gas is online and polyphase flowmeter weights and measures technique

0 foreword

Coagulate the English of flowmeter of analyse natural gas is Wet Gas Meter, home also is translated into damp flowmeter sometimes. To coagulating the definition that analyse natural gas perhaps has not united on the precise meaning international of damp, show below working requirement gas phase bulk is contained commonly rate be more than 90 ％ , bulk of constituent of other of fluid get along with is contained lead the air pocket that is less than 10 ％ to yield content. Among them because the ground produces systematic temperature to pressure is reduced and coagulate,fluid photograph component is mixed possibly by what carry the alkyl 烴 that analyse generates kind light constituent, saturated water and form what join artificially to note an agent to prevent hydrate; Still have the solid photograph component such as partial sand, scrap sometimes, coagulate so analyse natural gas is metric belong to special heterogeneous to flow measure a category, existing weights and measures technique simplifies it to measure an issue to enrage what fluid two-phase flows commonly.

The inpour of three-phase of oil gas water that the polyphase flowmeter that has domestic and internationally is ％ of 10 ％ ~90 in the light of the rate that contain juice mostly is measured all right, below the believe probability of 90 ％ , photograph of gas, fluid measures precision to be able to achieve ±10 ％ less than, because this cannot use polyphase flowmeter directly metric coagulate crop of analyse natural gas. If the meter of single-phase gas flow with the tradition is metric,coagulate analyse natural gas, as a result of the existence of fluid photograph, also can cause very big measurement error. The metric means that analyse natural gas coagulates in production of industry of oil natural gas is a certain number of tone wells child centers metric station, control time-sharing of each well child to pass metric segregator, the oily air-water after bisect leaves undertakes single-phase the well is metric, pull current Cheng complex, cost is high and it is intermittent metric.

As marine, desert, polar and the development of cropland of outlying area oil gas builds other and the technical reformation of old mannish cropland, to simplifying technological process, reduce manufacturing cost, the respect such as the optimization with the scientific level of management that improves gas pool and air pocket and decision-making operation raised taller requirement. Solve online real time accurate the flow that measures natural gas, condensate, water appears particularly important. because such, domestic and international not little research organization, JIP (Joint Indus-try Project) the project had begun to develop in recent years coagulate flowmeter of analyse natural gas.
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