CAJ | 학술논문

在模拟大庆油田油藏条件下(45℃，原油粘度9.8 mPa?s)，用1600万、1900万、2500万聚合物配制成浓度分别为1000、1500、2000、2500 mg/L 的三元复合溶液，并在渗透率为100、300、500、700、900×10-3μm2的人造岩心上开展流动性实验，测定各组实验的阻力系数和残余阻力系数，从而优选出与油层渗透率匹配性较好的三元复合溶液。在三元复合驱实验中，用优选出的1600万和2500万聚合物配制成不同浓度的三元复合溶液并驱替非均质(平均渗透率300×10-3μm2，变异系数0.72)人造岩心的水驱剩余油，得到了各方案不同阶段采收率、含水率的变化规律，从而优选出最佳注入方式。
재모의대경유전유장조건하(45℃，원유점도9.8 mPa?s)，용1600만、1900만、2500만취합물배제성농도분별위1000、1500、2000、2500 mg/L 적삼원복합용액，병재삼투솔위100、300、500、700、900×10-3μm2적인조암심상개전류동성실험，측정각조실험적조력계수화잔여조력계수，종이우선출여유층삼투솔필배성교호적삼원복합용액。재삼원복합구실험중，용우선출적1600만화2500만취합물배제성불동농도적삼원복합용액병구체비균질(평균삼투솔300×10-3μm2，변이계수0.72)인조암심적수구잉여유，득도료각방안불동계단채수솔、함수솔적변화규률，종이우선출최가주입방식。
Under simulated reservoir conditions of Daqing oilfield(45 ℃, crude oil viscosity 9.8 mPa?s), liquidity experiment was carried out on artificial cores of 100×10-3, 300×10-3, 500×10-3, 700×10-3 or 900×10-3μm2 by using ASP solution with polymer concentration of 1 000, 1 500, 2 000 or 2 500 mg/L, the best ASP solution was elected by analyzing the experimental data of resistance coefficient and residual resistance factor. In the experiment of ASP flooding, the residual oil in heterogeneous artificial cores (average permeability 300×10-3 μm2 and its variation coefficient 0.72) was displaced by ASP solution of different concentration of polymers with 16 million molecular weight and 25 million molecular weight, the recovery of different stages and moisture content variation were got, then the best injection pattern was determined.