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大港南部油田在蒸汽吞吐过程中,要求有足够的焖井时间,以使压力稳定并促使蒸汽在加热带中消失,同时蒸汽凝结成水,减少开井时液体带出的热量,但延长焖井时间势必会减少生产时间,尤其在能量不足的油藏中,焖井时间应尽量缩短,以充分利用注入蒸汽的能量。因此,如何确定最佳的焖井时间是非常重要的。目前,我国几个主要稠油油田相继引进了昂贵的热力油藏动态监测仪器和设备,已经能够同时测量井底温度、压力和分层吸汽量,因此可以尝试应用试井的方法确定最佳焖井时间。
During the process of steam stimulation, the southern Dagang oilfield requires enough time for brazing to stabilize the pressure and promote the disappearance of steam in the heating zone. At the same time, the steam condenses into water to reduce the amount of heat brought by the liquid when the well is open. However, Time is bound to reduce production time, especially in low-energy reservoirs, soaking time should be minimized to make full use of the energy injected into the steam. Therefore, it is very important to determine the optimal time for soil well management. Currently, several major heavy oil fields in China have introduced expensive thermal reservoir dynamic monitoring instruments and equipment and have been able to simultaneously measure bottom hole temperature, pressure and stratified suction. Therefore, we can try to use the well test method to determine the best Brazing well time.