發(fā)布時間：2018-05-17 02:11

  本文選題：高鹽稠油油藏 + 締合聚合物驅��； 參考：《油田化學》2017年01期

【摘要】：針對魯克沁中區(qū)油藏非均質(zhì)性嚴重、水油流度比大和地層水礦化度高的特點,研究了疏水締合聚合物AP-P8在該油藏條件下的黏度、溶解性、抗剪切性和熱穩(wěn)定性,考察了AP-P8的驅油性能,并在現(xiàn)場進行了應用。研究結果表明,配液水為注入水(礦化度約80 g/L)、溫度為78℃時,AP-P8的增黏性能明顯好于常規(guī)聚合物,AP-P8溶液黏度隨溫度升高而降低,用注入水配制的2 g/L AP-P8溶液在100℃時的黏度為64.5 mPa·s;室溫下AP-P8在注入水中的溶解性較好,溶解時間為2.8 h;AP-P8抗剪切性較好,2.5 g/L AP-P8溶液剪切后的黏度保留率為54.2%。隨AP-P8濃度的增加,巖心阻力系數(shù)和殘余阻力系數(shù)增加,有利于提高原油的采收率;AP-P8可在水驅基礎上提高稠油采收率10.2%;現(xiàn)場試注試驗結果表明,AP-P8的注入性良好,常溫配液黏度為100 mPa·s,注聚穩(wěn)定壓力27.5 MPa。AP-P8滿足魯克沁中區(qū)油藏條件對聚合物驅性能的要求,應用時可以直接用注入水配液。
[Abstract]:In view of the serious heterogeneity, high water / oil mobility ratio and high salinity of formation water in Lukeqin middle area, the viscosity, solubility, shear resistance and thermal stability of hydrophobically associating polymer AP-P8 in this reservoir are studied. The oil displacement performance of AP-P8 was investigated and applied in the field. The results show that the viscosity of AP-P8 is better than that of conventional polymer AP-P8 when the salinity is about 80 g 路L ~ (-1) and the temperature is 78 鈩，

本文編號：1899436