摘要
关家堡海上油田已经完成了井网部署,即将投入商业开发。为了达到高速高效开发的目的,通过室内实验研究了注水开发初期实施ASP三元复合驱的可行性,对比了复合驱“早期—低浓度—大段塞”、“中期—中浓度—中段塞”和“晚期—高浓度—小段塞”3种注入方式下的驱油效果。研究结果表明,在关家堡海上油田推荐使用“早期—低浓度—大段塞”方式,即开发初期就实施复合驱,ASP三元复合驱体系为600mg/L聚合物、0.3%表面活性剂和1.2%碳酸钠,段塞尺寸为0.50倍孔隙体积。该研究成果对于关家堡油田的高速高效开发具有指导意义。
Guanjiapu Offshore Oilfield has finished its well pattern design and will be put into industrial development.In order to achieve the aim of high-speed and high-efficiency development,the feasibility of implementing ASP flooding at the initial stages of water-flooding is researched by lab experiments.Displacement characteristics in three ways of injection are compared,which include 'early stage-low concentration-large slug','middle stage-middle concentration-middle slug' and ' later stage-high concentration-small slug'.The study indicates that the recommended initial stage EOR method in the Guanjiapu Oilfield is ASP flooding with the mode of ' early stage-low concentration-large slug'.The suitable ASP flooding system formula is:600mg/L polymer + 0.3% surfactant + 1.2% sodium carbonate,and 0.50PV slug.The achievements in this paper are very important for realizing high-speed and high-efficiency development of Guanjiapu Oilfield.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2007年第3期108-110,共3页
Petroleum Geology and Recovery Efficiency
关键词
海上油田
三元复合驱
配方
注入参数
offshore oilfield,ASP flooding,formula,injection parameters
