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答:采油(气)树位于完井井装置最上部,由一些闸阀、三通、四通和短节组成,安装在油管头上。采油(气)树的作用主要包括:(1)控制与调节油、气流量,合理进行生产;(2)确保顺利地实施压井、测试、打捞、注液等修井与采油作业;(3)控制和调节油气井自喷,使油、气沿着某一出油管道进入油气分离器,或控制注水井的注水洗井。采油(气)树符号命名格式如下:例如,KYS21/65DQ表示如下:KYS—采油树;21—最大工作压力为21MPa;65—公称通径为65mm;DQ—大庆。
A: The production (gas) tree is located on the top of the completion well and consists of a number of gate valves, tees, crosses and short sections mounted on the tubing head. The main functions of the production (gas) tree include: (1) control and regulation of oil and gas flow, and reasonable production; (2) ensure smooth completion of workover and oil recovery operations such as well killing, testing, ) Control and regulate self-injection of oil and gas wells, so that oil and gas into the oil and gas separator along a certain oil pipeline, or injection wells to control water injection wells. For example, KYS21 / 65DQ is as follows: KYS-Christmas tree; 21-maximum working pressure of 21MPa; 65-nominal diameter of 65mm; DQ-Daqing.