油井堵漏材料的应用

Application of plugging materials for lost circulation in petroleum drilling

介绍了国内外近年来油井堵漏剂的研究应用情况,并对国内漏失严重地区应用的堵漏剂及堵漏工艺进行了论述。阐明了油井堵漏剂的发展方向。

This paper illustrates the development and application of lost circulation additives at home and abroad in recent years. The plugging technologies and practices in some typical areas with serious lost circulation are further described, e. g. , Zhongyuan Oilfield and east Sichuan area. The future of its development is forecasted , more specifically, use of chemical plugging additives, bridging and soft plug materials with adjustable softening points, bifunctional additive combing plugging and water resistance, and plugging additives for fractured formation represent the developing trend of this technology.