Last decades maintenance of reliability of objects of oil and gas has considerably become aggravated. It is connected with considerable ageing of pipelines which almost on 45 their % them are maintained more than 20 years, and 20 % – over 30 years, besides poor quality of designing and building in a combination to the limited service life applied film insulating materials of pipes lead to appreciable decrease in an operational resource. Thus, the urgency of maintenance of reliable, accident-free and effective work of pipeline system became obvious. In offered work application remote magnetometric the control, on the basis of application magnetometric equipments is described.
Since 1991 till the year of 2000 more than 300 serious accidents happened in Russia. The significant part of the accidents at main pipelines was connected with electrochemical corrosion, stress corrosion cracking and microbiological corrosion. System analysis of the accident reasons cannot be given without probabilistic and statistical approach, which assumes that the reason of the accident is the combination of many influencing factors. At the same time usage of the multivariate analysis is quite complicated task due to a large amount of factors, influencing the pipelines accident rate, insufficient statistics and unauthentic documentation of the accident causes .
On terrain of Russia act a system of mains by a general expansion more than 200 thousand km. More than halves oil and gas pipelines are in exploitation 25-35 years, i.e. demand immediate repeated examination and conforming preventive maintenance. Intraube magnetic or the ultrasonic flaw detection for these purposes is not always possible and is dear enough, therefore last years a urgency of application of remote geophysical methods has increased at service oil and gaspipeline of the transport sharply. These methods are express enough and more economic.
Рассмотрена актуальная проблема изменения количества остаточного газа в потоке товарной нефти. Представлены приборы, основанные на радиоизотопном методе измерения и их поверочные средства. Изучен и описан принцип работы мобильного эталонного комплекса, на его основе предложено устройство электромагнитного клапана.
Reference complex of the 2nd category for metrological support of crude oil and petroleum gas measurements is proposed. The hydraulic scheme of the reference complex is developed. The advantages and disadvantages of the design are analyzed. The proposed time diagram shows the performance of the main operations of the measurement algorithm.
