摘要
为解决大庆低渗透油田低产井油层深、负荷大、供液差、效率低和能耗高的问题,开展了低产低效井综合提效技术实践研究。不停机高效间抽、电动潜油柱塞泵和超长冲程这3种采油技术均能实现小间隔间歇采油,充分发挥采油井产能,保证采油井供排协调。截至2020年底,不停机高效间抽采油技术累计应用6668口井,节电率为36.7%;电动潜油柱塞泵采油技术累计应用251口井,节电率为53.8%;超长冲程采油技术累计应用243口井,节电率达到55.4%。低产低效井综合提效技术能实现合理流压下高效生产,为低渗透油田高效开发提供技术支撑,具有良好的应用前景。
In order to solve the problems of deep reservoir,heavy load,poor fluid supply,low efficiency and high energy consumption of low-production wells in Daqing low-permeability oilfield,the research on practice of comprehensive efficiency improvement technology for low-production and low-efficiency wells has been conducted.Three oil recovery technologies,including non-stop high-efficiency intermittent pumping,submersible electric plunger pump and ultra-long stroke pump,could achieve intermittent oil recovery within small intervals;give full play to the productivity of oil production wells;and ensure their coordination of supply and discharge.By the end of 2020,the non-stop high-efficiency intermittent oil production technology has been applied to 6,668 wells with the power saving rate of 36.7%.The oil production technology with submersible electric plunger pump has been applied to 251 wells with the power saving rate of 53.8%.The ultra-long-stroke oil production technology has been applied to 243 wells with the power saving rate of 55.4%.The comprehensive efficiency improvement technology for lowproduction and low-efficiency wells could achieve high efficient production under reasonable flow pressure;provide technical support for the efficient development of low-permeability oil fields;and has good application prospects.
作者
戚兴
孙书晶
胡俊卿
常瑞清
姜晨
Qi Xing;Sun Shujing;Hu Junqing;Chang Ruiqing;Jiang Chen(Production Technology Institute of Daqing Oilfield Limited Company;Heilongjiang Provincial Key Laboratory of Oil and Gas Reservoir Stimulation;No.1 Oil Production Company of Daqing Oilfield Limited Company;No.6 Oil Production Company of Daqing Oilfield Limited Company)
出处
《采油工程》
2021年第3期46-51,85,共7页
Oil Production Engineering
关键词
低渗透油田
低产井
间抽
合理流压
提效
节能
low-permeability oil field
low-production well
intermittent pumping
reasonable flow pressure
efficiency improvement
energy saving
