CAJ | 학술논문

针对目前油田注水增压设备能耗高、注水压力不能合理调配等问题，设计了节能注水增压泵。该装置通过机械换向阀来控制活塞左右行程，从而控制装置内部液流流向，通过双作用柱塞增压泵对液流进行增压。通过活塞结构受力分析，将活塞的运动分为2个阶段，第1个阶段为加速阶段，第2个阶段为匀速阶段，计算了活塞运动速度、运动时间和有效功率，利用ANSYS软件对活塞缸和活塞进行有限元仿真计算，证明其结构强度满足要求。在胜利油田对2口高压井进行增压，增压1.5 MPa，能够满足注入压力和日配注量要求，完成增注任务；并且低压出口的压力和排量可以满足1~2口低压井的注水要求。
침대목전유전주수증압설비능모고、주수압력불능합리조배등문제，설계료절능주수증압빙。해장치통과궤계환향벌래공제활새좌우행정，종이공제장치내부액류류향，통과쌍작용주새증압빙대액류진행증압。통과활새결구수력분석，장활새적운동분위2개계단，제1개계단위가속계단，제2개계단위균속계단，계산료활새운동속도、운동시간화유효공솔，이용ANSYS연건대활새항화활새진행유한원방진계산，증명기결구강도만족요구。재성리유전대2구고압정진행증압，증압1.5 MPa，능구만족주입압력화일배주량요구，완성증주임무；병차저압출구적압력화배량가이만족1~2구저압정적주수요구。
This energy-saving, water injection booster pump was designed in view of the problems like high energy consumption of water injection booster equipment used in oilifelds and water injection pressure not being able to be properly adjusted. This pump controls the right and left travel of the piston by mechanical direction valve, hence controlling the liquid lfow inside the pump and boosting the liquid lfow through double-acting piston booster pump. Through analysis of stress on piston structure, the movement of piston is divided into two stages. The ifrst stage is accelerating stage and the second stage is constant speed stage. The piston movement speed, movement period and effective power were calculated.The ANSYS software was used to conduct ifnite element simulation calculation of piston cylinder and the piston, which showed that its structure strength can meet the speciifcations. This pump was used to boost two high pressure wells in Shengli Oilifeld, and the booster was 1.5 MPa, which could meet the requirement of injection pressure and daily injection volume and accomplish the task of injection increase. The pressure and lfowrate at low pressure outlet could meet the requirement of water injection at one or two low pressure wellhead.