胜坨油田高温高盐油藏超高分子疏水缔合聚合物注入试验

针对高温高盐油藏增加可采储量的需要,开展了超高分子疏水缔合聚合物驱油技术研究,通过矿场单井注入试验,考察了超高分子疏水缔合聚合物的增黏能力、污水适应性,评价了超高分子疏水缔合聚合物在高温高盐油藏中的注入性能及应用效果。单井试注矿场动态反应良好,注入压力上升了4.0MPa,增加了流动阻力系数,注水井吸水剖面得到改善,对应油井见到初步的降水增油效果,表明超高分子疏水缔合聚合物驱是适用于高温高盐油藏的一种提高采收率的新技术。

Field test of ultra-high molecular weight hydrophobic associative polymer flooding in high temperature and high salinity oil reservoirs

Aiming at the need of the high temperature and high salinity reservoir to increase active oil, the technical research on the ultra high molecular weight hydrophobic associative polymer has been carried out. The increasing viscosity ability and sewage adaptability is studied through single well injection test, and the infectivity and applicability of the ultra high molecular weight hydrophobic associative polymer has been evaluated. The results show the single well injection test dynamic feedback is good. After the injection test, the injection pressure is increased 4.0 MPa, the flow resistance factor is increased too, the water injection profile is improved, and the corresponding oil well has achieved preliminary effect. The ultra-high molecular weight hydrophobic associative polymer flooding is a new technology of improving oil recovery in high temperature and high salinity reservoir.