Air compressor LCN system node analysis
The air compressor light hydrocarbon DCS system has only two monitoring screens, which cannot meet the monitoring and operation needs when opening large equipment. The APM capacity of the joint station and light hydrocarbons is insufficient, and the LCN node also has security risks, and the HM node has no redundant backup. Data, images, and other information between systems cannot be shared. New projects continue to increase, and the upgrade of automatic control systems lags behind. As the number of oil and water wells increases year by year, the supporting processes and facilities of the corresponding oil valve group, water valve group, metering separator and booster pump are also increasing. New and expanded projects since 1995 include: gas lift system, 35MPA water injection process system, hill area oil field east area valve group expansion project and LPG system expansion project.
The new projects from 2002 to 2007 include: single well automation system, sewage treatment system, expansion of valve group in the western area of ​​Qiuling Oilfield, light hydrocarbon efficiency, wet gas network, and light hydrocarbon improvement project. In the future, corresponding supporting projects will be built, and the contradiction between system resources and production needs will become increasingly prominent. The monitoring level of the automatic control system is insufficient. Lack of monitoring of pumping wells and electric pump wells. The existing automation system of the hill oil production plant is based on the self-spraying oil production method, and the monitoring of the working conditions of the pumping well and the electric pump well is not considered. At present, the production of pumping wells and electric pump wells accounts for more than two-thirds of the total output of crude oil. The current, voltage, oil pressure and casing pressure of pumping wells and electric pump wells can only be displayed by the local simulation table. Timely response to the working conditions of pumping wells and electric pump wells, abnormal conditions can not be found in time, and timely measures are taken. There are 160 pumping units in the hilly oil field, and 60 of them are still not included in the protection.
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