【摘要】 研究了一种适用于马寨油田卫 95块 PCS调驱试验的抗温、抗盐及抗 Ca2 + ,Mg2 +的驱油剂 ,其主要成分是由 STX-1 0和 AL两种不同结构的活性剂复配而成 ;考察了其与马寨原油之间的界面张力 ,在两块天然岩心上进行了驱油效果评价试验 ,在水驱基础上使采收率分别提高了 1 3 .5%和 1 4 .2 %。更多还原

【Abstract】 A new oil displacement agent is developed, which is a high performance agent, resistant to temperature, salt, Ca 2+ and Mg 2+ and suitable to PCS test in W95 of Mazhai oilfield The agent mainly consists of 2 kinds of surfactants, STX 10 and AC, with different chemical structure The interfacial tension between the agent and the crude oil of the oilfield is studied An experiment of oil displacement conducted on two natural cores shows that oil recovery on the basis of water flooding is enhanced respectively by 13 5% and 14 2%更多还原