高效洗井液体系ＧＸ１由隔离液、泡沫和油层清洗液组成。本文报道了该体系的组成、作用原理及各组成分室内性能测定结果（稳定性、伤害性、悬浮性、携砂能力和除垢能力）。又研制了垂向及径向流洗井工具，使用该工具和ＧＸ１体系能高效地冲洗射孔眼、井眼及油层。介绍了洗井工艺方法，通过３个井例说明了此项洗井工艺技术的现场应用效果 High-efficient fluid system GX 1 by the isolation fluid, foam and reservoir cleaning fluid composition. This paper reports the composition of the system, the principle of action and the results of the determination of the indoor performance of each component (stability, damage, suspension, sand carrying capacity and detergency). Also developed a vertical and radial flow well washing tools, the use of the tool and GX 1 system can efficiently flush perforating holes, boreholes and reservoirs. The paper introduces the technology of washing well, and illustrates the field application effect of the well washing technology through three wells