摘要
试验分析了不同含气量油井的流动介质在低温状态下的管输流型变化,得到了降温过程中试验油井管道压差随着时间、温度的变化情况。试验结果表明:降温过程中,管道压差均随时间的推移和温度的降低出现波动,而不同含气油井压差变化过程中出现的压差峰值的数量、大小不尽相同。结合流型变化可知,压差峰值的出现总是伴随着管道内凝油拥堵现象的发生,且凝油拥堵越严重,对应的压差峰值越大。结合含气油井的管输流动情况和压差变化规律,将降温过程中第一次出现的管道压差峰值所对应的温度作为低温集输的温度界限,可以保证低温集输的安全进行。
The experiment analyzed flow patterns of fluids with various gas contents in pipe at low temperature,and obtained the differential-pressure of the test oil well pipeline along with influence of time and temperature change during the cooling process.The number and size of peak pressure drop varied alone with differential-pressure changing of gas-bearing oil wells.According to the flow pattern change,the peaks always accompanied the congestion of coagulated oil in pipe.The more serious condensate congestion caused the larger peak of pressure drop.Combining with the pipeline flow and pressure drop variation of gas-bearing oil wells,the temperature at the first peak of pressure drop appeared during cool process can be used as the temperature limit of low-temperature gathering transportation,which can ensure the safe operation of low-temperature gathering and transportation.
作者
张阳
宋晨
刘婕
徐沛扬
李娇
胡雄翼
杨东海
Zhang Yang;Song Chen;Liu Jie;Xu Peiyang;Li Jiao;Hu Xiongyi;Yang Donghai
出处
《石油规划设计》
2020年第1期39-45,60,共8页
Petroleum Planning & Engineering
