Abstract: The oil field in the south of Dagang Oilfield is a complex fault block oil field. With the waterflooding development deepened, the quality of cementing quality is only about 55% . Analysis shows the existence of thick mud cake or cuttings bed, affecting the quality of the two interface cementing. Therefore, in this paper a multi-stage blind eye cleaning technology presented, the technical principle described, a special hole cleaning tool designed , and four wells pilot test carried out, the cementing quality were all high quality. The research in this paper provides a feasible and effective method to improve the quality of two interface cementing.

摘要： 大港油田南部油区为复杂断块油田，随着注水开发的不断深入，目前处于高含水期，固井质量优质率仅 ５５％左右。分析认为，厚滤饼或岩屑床的存在，影响了二界面的固井质量。因此，文章设计了专用井眼清洁工具，提出了多级划眼清洁井眼技术，并阐述了原理和技术措施。该技术在大港油田南部油区进行了 ４口井先导试验，固井质量均为优质。该研究为提高二界面固井质量提供了一种可行有效的方法。

关键词: 多级划眼, 井眼清洁工具, 滤饼, 固井二界面, 固井质量