原油含水对管道运行的影响

介绍了水在原油中的存在状态及含水率的测量方法,结合马惠宁管道近期的实际情况,就原油含水对原油流变性、管道运行及设备的影响等问题进行了试验研究,指出:(1)在一定范围内,原油的粘度和凝点随含水率增加而增大,含水率低于5%,对原油流变性影响不大;(2)高含水原油进入管道会造成管道运行不稳定,并使管输能耗明显增加;(3)靖马原油所含水分对管道和设备具有较强的腐蚀性,并影响了加热炉的正常操作;(4)应避免3m罐位以下的高含水靖马原油集中进入管道,对这部分原油可采取与马岭原油掺合的输送工艺。

An influence of water content oil on pipeline operation

Introduces the statue of water in oil and measure method of water content rate, and makes a test study on such effective problems as influence of ware content on crude rheological property, on pipeline operation and on equipment in combination with recent actual situation in Mahuining Pipeline. It is pointed out that: (1) the viscosity and pour point of crude oil will be increased with large proportion of water content to a certain extent. When water content rate is less than 5%?there will be few influence on crude rheological property, (2)heavy water content crude will bring unstability to pipeline's operation and increase pipeline energy consumption evidently; (3)Jingma crude has strong corrosiveness to pipeline and equipment due to its water contained, which affects heater's normal operation; (4)Jingma crude of heavy water content 3 m below oil tank level shall be avoided to enter into the pipeline concentrately. This part of the crude should be transported with Maling crude by means of mixing process.